Industrial Traning Report
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Here, I found this golden chance to acknowledge all those people who had blessed, encouraged and supported me technically and morally through all the phases of my training. I thank almighty God for giving me this opportunity to express gratitude to all those who helped me in my training. First of all, I pay my immense gratitude to Principal Dr. M. L. Ohri, Mr. Sukh Chain Singh Dhilon HOD, Mechanical Engg. Department for their valuable guidance. I am also thankful to our T.P.O Mrs. Yaspreet Kaur, who allows me for industrial training. It is my proud to express my heartiest gratitude to my venerable guide to Mr. Diraj Kumar (Manager of Maruti Suzuki) without whose expert guidance and support, this training period would have been compelling. I extend my fort right thanks to my family& friends for their moral support and encouragement throughout my training report.
Vikash Ranjan M.E. (5th SEM.) 7060113075
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KARLO AUTOMOBILE (P) LTD.:-
KARLO AUTOMOBILE (P) LTD. is authorized dealer & servicing company of Maruti Suzuki. India's top automobile manufacturer, Maruti has dealers spread across all over the country. Karlo Automobile is also a car dealer of Maruti Suzuki in India. Karlo Automobiles, Boring Road, Patna, Bihar, India Pin – 800001 Phone Number(S): 0612-2227774, 2540686 Fax- 0612-2540519 E-Mail: [email protected] & [email protected]
INTRODUCTION:-
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➢ Maruti Suzuki India Limited is a leading four-wheeler automobile manufacturer in South Asia. It is largely credited for having brought in an automobile revolution to India. ➢ It was a joint venture between the Indian government, and Suzuki of Japan. As of May 10 2007, Govt. of India sold its complete share to Indian financial institutions. With this, Govt. of India no longer has stake in Maruti Udyog. ➢ The company annually exports more than 50,000 cars and has an extremely large domestic market in India selling over 730,000 cars annually. ➢ Maruti Suzuki offers 13 models, Maruti 800, Omni, Alto, Versa, Ritz, Gypsy, A Star, Wagon R, Zen Estilo, Swift, Swift Dzire, SX4, and Grand Vitara. ➢
Maruti Suzuki has manufacturing plants in Gurgaon & Manesar.
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Maruti Suzuki Logo
Maruti Suzuki India Limited is a publicly listed automaker in India. It is a leading four-wheeler automobile manufacturer in South Asia. Suzuki Motor Corporation of Japan holds a majority stake in the company. It was the first company in India to mass-produce and sell more than a million cars. It is largely credited for having brought in an automobile revolution to India. It is the market leader in India and on 17 September 2007, Maruti Udyog was renamed Maruti Suzuki India Limited. The company headquarter is in Gurgaon, Haryana (near Delhi).
Profile:Maruti Suzuki is one of India's leading automobile manufacturers and the market leader in the car segment, both in terms of volume of vehicles sold and revenue earned. Until recently, 18.28% of the company was owned by the Indian government, and 54.2% by Suzuki of Japan. The Indian government held an initial public offering of 25% of the company in June 2003. As of 10 May 2007, Govt. of India sold its complete share to Indian financial institutions. With this, Govt. of India no longer has stake in Maruti Udyog.
Maruti Udyog Limited (MUL)
was established in February 1981, though the actual production commenced in 1983 with the Maruti 800, based on the Suzuki Alto key car which at the time was the only modern car available in India, its' only competitors- the Hindustan Ambassador and Premier Padmini were both around 25 years out of date at that point. Through 2004, Maruti has produced over 5 Million vehicles. Maruti’s are sold in India and various several other countries, depending upon export orders. Models similar to Maruti’s (but not manufactured by Maruti Udyog) are sold by Suzuki and manufactured in Pakistan and other South Asian countries.
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The old logo of Maruti Suzuki India Limited... The company annually exports more than 50,000 cars and has an extremely large domestic market in India selling over 730,000 cars annually. Maruti 800, till 2004, was the India's largest selling compact car ever since it was launched in 1983. More than a million units of this car have been sold worldwide so far. Currently, Maruti Alto tops the sales charts and Maruti Swift is the largest selling in A2 segment. Due to the large number of Maruti 800s sold in the Indian market, the term "Maruti" is commonly used to refer to this compact car model. Till recently the term "Maruti", in popular Indian culture, was associated to the Maruti 800 model. Maruti Suzuki India Limited, a subsidiary of Suzuki Motor Corporation of Japan, has been the leader of the Indian car market for over two decades. Its manufacturing facilities are located at two facilities Gurgaon and Manesar south of New Delhi. Maruti’s Gurgaon facility has an installed capacity of 350,000 units per annum. The Manesar facilities, launched in February 2007 comprise a vehicle assembly plant with a capacity of 100,000 units per year and a Diesel Engine plant with an annual capacity of 100,000 engines and transmissions. Manesar and Gurgaon facilities have a combined capability to produce over 700,000 units annually. More than half the cars sold in India are Maruti cars. The company is a subsidiary of Suzuki Motor Corporation, Japan, which owns 54.2 per cent of Maruti. The rest is owned by the public and financial institutions. It is listed on the Bombay Stock Exchange and National Stock Exchange in India. During 2007-08, Maruti Suzuki sold 764,842 cars, of which 53,024 were exported. In all, over six million Maruti cars are on Indian roads since the first car was rolled out on 14 December 1983. Maruti Suzuki offers 15 models, Maruti 800, Omni,Esteem, Baleno, Alto, Versa, Ritz, Gypsy, A Star, Wagon R, Zen Estilo, Swift, Swift Dzire, SX4, and Grand Vitara. Swift, Swift dzire, A star and SX4 are maufactured in Manesar, Grand
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Vitara is imported from Japan as a completely built unit (CBU), remaining all models are manufactured in Maruti Suzuki's Gurgaon Plant. Suzuki Motor Corporation, the parent company, is a global leader in mini and compact cars for three decades. Suzuki’s technical superiority lies in its ability to pack power and performance into a compact, lightweight engine that is clean and fuel efficient. Maruti is clearly an “employer of choice” for automotive engineers and young managers from across the country. Nearly 75,000 people are employed directly by Maruti and its partners. The company vouches for customer satisfaction. For its sincere efforts it has been rated (by customers) first in customer satisfaction among all car makers in India for nine years in a row in annual survey by J D Power Asia Pacific. Maruti Suzuki was born as a government company, with Suzuki as a minor partner to make a people's car for middle class India. Over the years, the product range has widened, ownership has changed hands and the customer has evolved. What remains unchanged, then and now, is Maruti’s mission to motorize India.
Partner For The Joint Venture:-
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Suzuki Swift
Pressure started mounting on Indira and Sanjay Gandhi to share the details of the progress on the Maruti Project. Since country's resources were made available by mother to her son's pet project. A delegation of Indian technocrats was assigned to hunt a collaborator for the project. Initial rounds of discussion were held with the giants of the automobile industry in Japan including Toyota, Nissan and Honda. Suzuki Motor Corporation was at that time a small player in the four wheeler automobile sector and had major share in the two wheeler segment. Suzuki's bid was considered negligible. In the initial rounds of discussion the giants had their bosses present and in the later rounds related to the technical discussions executives of these automobile giants were present. Osamu Suzuki, Chairman and CEO of the company ensured that he was present in all the rounds of discussion. Osamu in an article writes that it subtly massaged their (Indian delegation) egos and also convinced them about the sincerity of Suzuki's bid. In the initial days Suzuki took all steps to ensure the government about its sincerity on the project. Suzuki in return received a lot of help from the government in such matters as import clearances for manufacturing equipment (against the wishes of the Indian machine tool industry then and its own socialistic ideology), land purchase at government prices for setting up the factory Gurgaon and reduced or removal of excise tariffs. This helped Suzuki conscientiously nurse Maruti through its infancy to become one of its flagship ventures.[3]
Joint Venture Related Issues:-
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A-Star Maruti Suzuki's A-Star vehicle during its unveiling in Pragati Maidan, Delhi. AStar, Suzuki's fifth global car model, was designed and is made only in India. Besides being Suzuki's largest subsidiary in terms of car sales, Maruti Suzuki is also Suzuki's leading research and development arm outside Japan. Relationship between the Government of India, under the United Front (India) coalition and Suzuki Motor Corporation over the joint venture was a point of heated debate in the Indian media till Suzuki Motor Corporation gained the controlling stake. This highly profitable joint venture that had a near monopolistic trade in the Indian automobile market and the nature of the partnership built up till then was the underlying reason for most issues. The success of the joint venture led Suzuki to increase its equity from 26% to 40% in 1987, and further to 50% in 1992. In 1982 both the venture partners had entered into an agreement to nominate their candidate for the post of Managing Director and every Managing Director will have a tenure of five years. Initially R.C.Bhargava, was the managing director of the company since the inception of the joint venture. Till today he is regarded as instrumental for the success of Maruti Udyog. Joining in 1982 he held several key positions in the company before heading the company as Managing Director. Currently he is on the Board of Directors.[6] After completing his five year tenure, Mr. Bhargava later assumed the office of Part-Time Chairman. The Government nominated Mr. S.S.L.N. Bhaskarudu as the Managing Director on 27 August 1997. Mr. Bhaskarudu had joined Maruti in 1983 after spending 21 years in the Public sector undertaking Bharat Heavy Electricals Limited as General Manager. Later in 1987 he was promoted as Chief General Manager, 1988 as Director, Productions and Projects, 1989 Director, Materials and in 1993 as Joint Managing Director.
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The Suzuki Motor Corporation didn't attend the Annual General Meeting of the Board with the reason of it being called on a short notice.[7] Later Suzuki Motor Corporation went on record to state that Mr. Bhaskarudu was "incompetent" and wanted someone else. However, the Ministry of Industries, Government of India refuted the charges. Media stated from the Maruti sources that Bhaskarudu was interested to indigenise most of components for the models including gear boxes especially for Maruti 800. Suzuki also felt that Bhaskarudu was a proxy for the Government and would not let it increase its stake in the venture.[8] If Maruti would have been able to indigenise gear boxes then Maruti would have been able to manufacture all the models without the technical assistance from Suzuki. Till today the issue of localization of gear boxes is highlighted in the press. The relation strained when Suzuki Motor Corporation moved to Delhi High Court to bring a stay order against the appointment of Mr. Bhaskarudu. The issue was resolved in an out-of-court settlement and both the parties agreed that R S S L N Bhaskarudu would serve up to 31 December 1999, and from 1 January 2000, Jagdish Khattar, Executive Director of Maruti Udyog Limited would assume charges as the Managing Director. Many politicians believed, and had stated in parliament that the Suzuki Motor Corporation is unwilling to localize manufacturing and reduce imports. This remains true, even today the gear boxes are still imported from Japan and are assembled at the Gurgaon facility.
Industrial Relations:For most of its history, Maruti Udyog had relatively few problems with its labour force. Its emphasis of a Japanese work culture and the modern manufacturing process, first instituted in Japan in the 1970s, was accepted by the workforce of the company without any difficulty. But with the change in management in 1997, when it became predominantly government controlled for a while, and the conflict between the United Front Government and Suzuki may have been the cause of unrest among employees. A major row broke out in September 2000 when employees of Maruti Udyog Ltd (MUL) went on an indefinite strike, demanding
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among other things, revision of the incentive scheme offered and implementation of a pension scheme. Employees struck work for six hours in October 2000, irked over the suspension of nine employees, going on a six-hour tools-down strike at its Gurgaon plant, demanding revision of the incentive-linked pay and threatened to fast to death if the suspended employees were not reinstated. About this time, the NDA government, following a disinvestments policy, proposed to sell part of its stake in Maruti in a public offering. The Staff union opposed this sell-off plan on the grounds that the company will lose a major business advantage of being subsidised by the Government. The standoff with the management continued to December with a proposal by the management to end the two-month long agitation rejected with a demand for reinstatement of 92 dismissed workers, with four MUL employees going on a fastunto-death. In December the company's shareholders met in New Delhi in an AGM that lasted 30 minutes. At the same time around 1500 plant workers from the MUL's Gurgaon facility were agitating outside the company's corporate office demanding commencement of production linked incentives, a better pension scheme and other benefits. The management has refused to pass on the benefits citing increased competition and lower margins.
Current Sales Of Automobiles:-
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Maruti 800: Launched - 1983 2. Maruti Omni: Launched - 1984 3. Maruti Gypsy: Launched - 1985 4. Maruti Alto: Launched - 2000 5. Maruti Wagon-R: Launched - 2002 6. Maruti Versa: Launched - 2003 7. Maruti Grand Vitara Launched - 2004 8. Maruti Suzuki Swift: Launched - 2005 9. Maruti Suzuki SX4: Launched - 2007 10. Maruti Swift Dzire: Launched - 2008 11. Maruti Suzuki A-STAR: Launched - 2008 12. Maruti Suzuki Ritz: Launched - 2009 13. Maruti Suzuki Estilo: Launched - 2009 1.
Authorized Service Stations:-
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Maruti is one of the companies in India which has unparalleled service network. To ensure the vehicles sold by them are serviced properly, Maruti has 2628 listed Authorized service stations and 30 Express Service Stations on 30 highways across India. Service is a major revenue generator of the company. Most of the service stations are managed on franchise basis, where Maruti trains the local staff. Other automobile companies have not been able to match this benchmark set by Maruti. The Express Service stations help many stranded vehicles on the highways by sending across their repair man to the vehicle.
Maruti Insurance:Launched in 2002 Maruti provides vehicle insurance to its customers with the help of the National Insurance Company, Bajaj Allianz, New India Assurance and Royal Sundaram. The service was set up the company with the inception of two subsidiaries Maruti Insurance Distributors Services Pvt. Ltd and Maruti Insurance Brokers Pvt. Limited. This service started as a benefit or value addition to customers and was able to ramp up easily. By December 2005 they were able to sell more than two million insurance policies since its inception.
Maruti Finance:To promote its bottom line growth, Maruti launched Maruti Finance in January 2002. Prior to the start of this service Maruti had started two joint ventures Citicorp Maruti and Maruti Countrywide with City Group and GE Countrywide respectively to assist its client in securing loan. Maruti tied up with ABN Amro Bank, HDFC Bank, ICICI Limited, Kotak Mahindra, Standard Chartered Bank, and Sundaram to start this venture including its strategic partners in car finance. Again the company entered into a strategic partnership with SBI in March 2003 Since March 2003, Maruti has sold over 12,000 vehicles through SBI-Maruti Finance. SBI-Maruti Finance is currently available in 166 cities across India.
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Citicorp Maruti Finance Limited is a joint venture between Citicorp Finance India and Maruti Udyog Limited its primary business stated by the company is "hirepurchase financing of Maruti vehicles". Citi Finance India Limited is a wholly owned subsidiary of Citibank Overseas Investment Corporation, Delaware, which in turn is a 100% wholly owned subsidiary of Citibank N.A. Citi Finance India Limited holds 74% of the stake and Maruti Udyog holds the remaining 26%. GE Capital, HDFC and Maruti Udyog Limited came together in 1995 to form Maruti Countrywide.[19] Maruti claims that its finance program offers most competitive interest rates to its customers, which are lower by 0.25% to 0.5% from the market rates .Maruti is the best car in the world.
Maruti True Value:Maruti True service offered by Maruti Udyog to its customers. It is a market place for used Maruti Vehicles. One can buy, sell or exchange used Maruti vehicles with the help of this service in India.
N2N Fleet Management:N2N is the short form of End to End Fleet Management and provides lease and fleet management solution to corporates. Their impressive lists of clients who have signed up of this service include Gas Authority of India Ltd, DuPont, Reckitt Benckiser, Sona Steering, Doordarshan, Singer India, National Stock Exchange and Transworld. This fleet management service includes end-to-end solutions across the vehicle's life, which includes Leasing, Maintenance, Convenience services and Remarketing.
Exports:-
Maruti Suzuki has helped India emerge as the fourth largest exporter of automobiles in Asia. Shown here is Maruti Gypsy in Malta.
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Maruti Exports Limited is the subsidiary of Maruti Udyog Limited with its major focus on exports and it does not operate in the domestic Indian market. The first commercial consignment of 480 cars was sent to Hungary. By sending a consignment of 571 cars to the same country Maruti crossed the benchmark of 300,000 cars. Since its inception export was one of the aspects government was keen to encourage. Every political party expected Maruti to earn foreign currency. Angola, Benin, Djibouti, Ethiopia, Europe, Kenya, Morocco, Sri Lanka, Uganda, Chile, Guatemala, Costa Rica and El Salvador are some of the markets served by Maruti Exports.
Automobiles:The automobile is one of the most fascinating devices that a person can own. Automobiles are also one of the most pervasive devices, with a typical American family owning two automobiles. An automobile contains dozens of different technologies -- everything from the engine to the tires is its own special universe of design and engineering. ✔
Car Engines
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Maruti Suzuki Ritz Engine
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•
If we ever opened the hood of car and wondered what was going on in there? A car engine can look like a big confusing jumble of metal, tubes and wires to the uninitiated. You might want to know what's going on simply out of curiosity. Or perhaps you are buying a new car, and you hear things like "3.0 liter V-6" and "dual overhead cams" and "tuned port fuel injection." What does all of that mean? In this article, we'll discuss the basic idea behind an engine and then go into detail about how all the pieces fit together, what can go wrong and how to increase performance. The purpose of a gasoline car engine is to convert gasoline into motion so that your car can move. Currently the easiest way to create motion from gasoline is to burn the gasoline inside an engine. Therefore, a car engine is an internal combustion engine -- combustion takes place internally. Two things to note: There are different kinds of internal combustion engines. Diesel engines are one form and gas turbine engines are another. See also the articles on HEMI engines, rotary engines and two-stroke engines. Each has its own advantages and disadvantages. There is such a thing as an external combustion engine. A steam engine in oldfashioned trains and steam boats is the best example of an external combustion engine. The fuel (coal, wood, oil, whatever) in a steam engine burns outside the engine to create steam, and the steam creates motion inside the engine. Internal combustion is a lot more efficient (takes less fuel per mile) than external combustion, plus an internal combustion engine is a lot smaller than an equivalent
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external combustion engine. This explains why we don't see any cars from Ford and GM using steam engines.
✔ Internal Combustion The principle behind any reciprocating internal combustion engine: If we put a tiny amount of high-energy fuel (like gasoline) in a small, enclosed space and ignite it, an incredible amount of energy is released in the form of expanding gas. We can use that energy to propel a potato 500 feet. In this case, the energy is translated into potato motion. We can also use it for more interesting purposes. For example, if you can create a cycle that allows you to set off explosions like this hundreds of times per minute, and if you can harness that energy in a useful way, what we have is the core of a car engine! Almost all cars currently use what is called a four-stroke combustion cycle to convert gasoline into motion. The four-stroke approach is also known as the Otto cycle, in honor of Nikolaus Otto, who invented it in 1867. The four strokes are illustrated in fig. They are: • Intake stroke • Compression stroke • Combustion stroke
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• Exhaust stroke You can see in the figure that a device called a piston replaces the potato in the potato cannon. The piston is connected to the crankshaft by a connecting rod. As the crankshaft revolves, it has the effect of "resetting the cannon." Here's what happens as the engine goes through its cycle: 1. The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline. This is the intake stroke. Only the tiniest drop of gasoline needs to be mixed into the air for this to work. (Part 1 of the figure) 2. Then the piston moves back up to compress this fuel/air mixture. Compression makes the explosion more powerful. When the piston reaches the top of its stroke, the spark plug emits a spark to ignite the gasoline. The gasoline charge in the cylinder explodes, driving the piston down. 3. Once the piston hits the bottom of its stroke, the exhaust valve opens and the exhaust leaves the cylinder to go out the tailpipe. Now the engine is ready for the next cycle, so it intakes another charge of air and gas. Notice that the motion that comes out of an internal combustion engine is rotational, while the motion produced by potato cannon is linear (straight line). In an engine the linear motion of the pistons is converted into rotational motion by the crankshaft. The rotational motion is nice because we plan to turn (rotate) the car's wheels with it anyway. Now let's look at all the parts that work together to make this happen, starting with the cylinders.
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✔ Basic Engine Parts The core of the engine is the cylinder, with the piston moving up and down inside the cylinder. The engine described above has one cylinder. That is typical of most lawn mowers, but most cars have more than one cylinder (four, six and eight cylinders are common). In a multi-cylinder engine, the cylinders usually are arranged in one of three ways: inline, V or flat (also known as horizontally opposed or boxer). Different configurations have different advantages and disadvantages in terms of smoothness, manufacturing cost and shape characteristics. These advantages and disadvantages make them more suitable for certain vehicles. Let's look at some key engine parts in more detail. Spark plug the spark plug supplies the spark that ignites the air/fuel mixture so that combustion can occur. The spark must happen at just the right moment for things to work properly. Valves The intake and exhaust valves open at the proper time to let in air and fuel and to let out exhaust. Note that both valves are closed during compression and combustion so that the combustion chamber is sealed. Piston A piston is a cylindrical piece of metal that moves up and down inside the cylinder. Piston rings Piston rings provide a sliding seal between the outer edge of the piston and the inner edge of the cylinder. The rings serve two purposes: • They prevent the fuel/air mixture and exhaust in the combustion chamber from leaking into the sump during compression and combustion. • They keep oil in the sump from leaking into the combustion area, where it would be burned and lost. Most cars that "burn oil" and have to have a quart added every 1,000 miles are burning it because the engine is old and the rings no longer seal things properly.
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Connecting rod the connecting rod connects the piston to the crankshaft. It can rotate at both ends so that its angle can change as the piston moves and the crankshaft rotates. Crankshaft The crankshaft turns the pistons up and down motion into circular motion just like a crank on a jack-in-the-box does. Sump The sump surrounds the crankshaft. It contains some amount of oil, which collects in the bottom of the sump (the oil pan).
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Clutches
If you drive a manual transmission car, you may be surprised to find out that it has more than one clutch. And it turns out that folks with automatic transmission cars have clutches, too. In fact, there are clutches in many things you probably see or use every day: Many cordless drills have a clutch, chain saws have a centrifugal clutch and even some yo-yos have a clutch.
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Diagram of car showing clutch location
Clutches are useful in devices that have two rotating shafts. In these devices, one of the shafts is typically driven by a motor or pulley, and the other shaft drives another device. In a drill, for instance, one shaft is driven by a motor and the other drives a drill chuck. The clutch connects the two shafts so that they can either be locked together and spin at the same speed, or be decoupled and spin at different speeds. In a car, you need a clutch because the engine spins all the time, but the car's wheels do not. In order for a car to stop without killing the engine, the wheels need to be disconnected from the engine somehow. The clutch allows us to smoothly engage a spinning engine to a non-spinning transmission by controlling the slippage between them. To understand how a clutch works, it helps to know a little bit about friction, which is a measure of how hard it is to slide one object over another. Friction is caused by the peaks and valleys that are part of every surface -- even very smooth surfaces still have microscopic peaks and valleys. The larger these peaks and valleys are, the harder it is to slide the object.
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Brakes
We all know that pushing down on the brake pedal slows a car to a stop. But how does this happen? How does your car transmit the force from your leg to its wheels? How does it multiply the force so that it is enough to stop something as big as a car?
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When you depress your brake pedal, your car transmits the force from your foot to its brakes through a fluid. Since the actual brakes require a much greater force than you could apply with your leg, your car must also multiply the force of your foot. It does this in two ways: • Mechanical advantage (leverage) • Hydraulic force multiplication The brakes transmit the force to the tires using friction, and the tires transmit that force to the road using friction also. Before we begin our discussion on the components of the brake system, we'll cover these three principles: Leverage Hydraulics Friction
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Anti-Lock Brakes
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Stopping a car in a hurry on a slippery road can be very challenging. Anti-lock braking systems (ABS) take a lot of the challenge out of this sometimes nervewracking event. In fact, on slippery surfaces, even professional drivers can't stop as quickly without ABS as an average driver can with ABS.
✔ The ABS System
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The theory behind anti-lock brakes is simple. A skidding wheel (where the tire contact patch is sliding relative to the road) has less traction than a non-skidding wheel. If you have been stuck on ice, you know that if your wheels are spinning you have no traction. This is because the contact patch is sliding relative to the ice (see Brakes: How Friction Works for more). By keeping the wheels from skidding while you slow down, anti-lock brakes benefit you in two ways: You'll stop faster, and you'll be able to steer while you stop. There are four main components to an ABS system: Speed sensors Pump Valves Controller
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Anti-lock brake pump and valves
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Speed Sensors The anti-lock braking system needs some way of knowing when a wheel is about to lock up. The speed sensors, which are located at each wheel, or in some cases in the differential, provide this information. Valves there is a valve in the brake line of each brake controlled by the ABS. On some systems, the valve has three positions: In position one, the valve is open; pressure from the master cylinder is passed right through to the brake. In position two, the valve blocks the line, isolating that brake from the master cylinder. This prevents the pressure from rising further should the driver push the brake pedal harder. In position three, the valve releases some of the pressure from the brake. Pump since the valve is able to release pressure from the brakes, there has to be some way to put that pressure back. That is what the pump does; when a valve reduces the pressure in a line, the pump is there to get the pressure back up. Controller The controller is a computer in the car. It watches the speed sensors and controls the valves. ABS at Work There are many different variations and control algorithms for ABS systems. We will discuss how one of the simpler systems works. The controller monitors the speed sensors at all times. It is looking for decelerations in the wheel that are out of the ordinary. Right before wheel locks
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up, it will experience a rapid deceleration. If left unchecked, the wheel would stop much more quickly than any car could. It might take a car five seconds to stop from 60 mph (96.6 kph) under ideal conditions, but a wheel that locks up could stop spinning in less than a second. The ABS controller knows that such a rapid deceleration is impossible, so it reduces the pressure to that brake until it sees acceleration, then it increases the pressure until it sees the deceleration again. It can do this very quickly, before the tire can actually significantly change speed. The result is that the tire slows down at the same rate as the car, with the brakes keeping the tires very near the point at which they will start to lock up. This gives the system maximum braking power. When the ABS system is in operation you will feel a pulsing in the brake pedal; this comes from the rapid opening and closing of the valves. Some ABS systems can cycle up to 15 times per second.
✔ Anti-Lock Brake Diagram Now let's put the parts together to see how anti-lock brakes work as a whole. This diagram provides both a close up view and an example of where the brakes are located in your vehicle.
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Tyres If we’re in the market for new tires, all of the variables in tire specifications and the confusing jargon you might hear from tire salesmen or "experts" might make your purchase rather stressful. Or maybe you just want to fully understand the tires you already have, the concepts at work, the significance of all of those sidewall markings.
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We will explore how tires are built and see what's in a tire. We'll find out what all the numbers and markings on the sidewall of a tire mean, and we'll decipher some of that tire jargon. By the end of this article, you'll understand how a tire supports your car, and you'll know why heat can build up in your tires, especially if the pressure is low. We’ll also be able to adjust your tire pressure correctly and diagnose some common tire problems!
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Automobile Ignition Systems
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The internal combustion engine is an amazing machine that has evolved for more than 100 years. It continues to evolve as automakers manage to squeeze out a little more efficiency, or a little less pollution, with each passing year. The result is an incredibly complicated, surprisingly reliable machine. The coil in this type of system works the same way as the larger, centrally-located coils. The engine control unit controls the transistors that break the ground side of the circuit, which generates the spark. This gives the ECU total control over spark timing. Systems like these have some substantial advantages. First, there is no distributor, which is an item that eventually wears out. Also, there are no high-voltage sparkplug wires, which also wear out. And finally, they allow for more precise control of the spark timing, which can improve efficiency, emissions and increase the overall power of a car.
✔ Car Cooling Systems Cite This! Close
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Please copy/paste the following text to properly cite this HowStuffWorks article: Nice, Karim. "How Car Cooling Systems Work." 22 November 2000. HowStuffWorks.com. 04 November 2009. Although gasoline engines have improved a lot, they are still not very efficient at turning chemical energy into mechanical power. Most of the energy in the gasoline (perhaps 70%) is converted into heat, and it is the job of the cooling system to take care of that heat. In fact, the cooling system on a car driving down the freeway dissipates enough heat to heat two average-sized houses! The primary job of the cooling system is to keep the engine from overheating by transferring this heat to the air, but the cooling system also has several other important jobs. The engine in your car runs best at a fairly high temperature. When the engine is cold, components wear out faster, and the engine is less efficient and emits more pollution. So another important job of the cooling system is to allow the engine to heat up as quickly as possible, and then to keep the engine at a constant temperature.
Diagram of a cooling system
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✔ The Basics Inside your car's engine, fuel is constantly burning. A lot of the heat from this combustion goes right out the exhaust system, but some of it soaks into the engine, heating it up. The engine runs best when its coolant is about 200 degrees Fahrenheit (93 degrees Celsius). At this temperature: • The combustion chamber is hot enough to completely vaporize the fuel, providing better combustion and reducing emissions. • The oil used to lubricate the engine has a lower viscosity (it is thinner), so the engine parts move more freely and the engine wastes less power moving its own components around. • Metal parts wear less. There are two types of cooling systems found on cars: liquid-cooled and aircooled.
✔ Liquid Cooling The cooling system on liquid-cooled cars circulates a fluid through pipes and passageways in the engine. As this liquid passes through the hot engine it absorbs heat, cooling the engine. After the fluid leaves the engine, it passes through a heat exchanger, or radiator, which transfers the heat from the fluid to the air blowing through the exchanger.
✔ Air Cooling Some older cars, and very few modern cars, are air-cooled. Instead of circulating fluid through the engine, the engine block is covered in aluminum fins that conduct the heat away from the cylinder. A powerful fan forces air over these fins, which cools the engine by transferring the heat to the air.
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Car Suspensions
When people think of automobile performance, they normally think of horsepower, torque and zero-to-60 acceleration. But all of the power generated by a piston engine is useless if the driver can't control the car. That's why automobile
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engineers turned their attention to the suspension system almost as soon as they had mastered the four-stroke internal combustion engine.
Double-wishbone suspension The job of a car suspension is to maximize the friction between the tires and the road surface, to provide steering stability with good handling and to ensure the comfort of the passengers. In this article, we'll explore how car suspensions work, how they've evolved over the years and where the design of suspensions is headed in the future. If a road were perfectly flat, with no irregularities, suspensions wouldn't be necessary. But roads are far from flat. Even freshly paved highways have subtle imperfections that can interact with the wheels of a car. It's these imperfections that apply forces to the wheels. According to Newton's laws of motion, all forces have both magnitude and direction. A bump in the road causes the wheel to move up and down perpendicular to the road surface. The magnitude, of course, depends on
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whether the wheel is striking a giant bump or a tiny speck. Either way, the car wheel experiences a vertical acceleration as it passes over an imperfection.
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Without an intervening structure, all of wheel's vertical energy is transferred to the frame, which moves in the same direction. In such a situation, the wheels can lose contact with the road completely. Then, under the downward force of gravity, the wheels can slam back into the road surface. What you need is a system that will absorb the energy of the vertically accelerated wheel, allowing the frame and body to ride undisturbed while the wheels follow bumps in the road. The study of the forces at work on a moving car is called vehicle dynamics, and you need to understand some of these concepts in order to appreciate why a suspension is necessary in the first place. Most automobile engineers consider the dynamics of a moving car from two perspectives: Ride - a car's ability to smooth out a bumpy road Handling - a car's ability to safely accelerate, brake and corner These two characteristics can be further described in three important principles road isolation, road holding and cornering. The table below describes these principles and how engineers attempt to solve the challenges unique to each.
✔ Camshafts Working We know about the valves that let the air/fuel mixture into the engine and the exhaust out of the engine. The camshaft uses lobes (called cams) that push against the valves to open them as the camshaft rotates; springs on the valves return them to their closed position. This is a critical job, and can have a great impact on an engine's performance at different speeds. On the next page of this article you can see the animation we built to really show you the difference between a performance camshaft and a standard one.
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In this article, you will learn how the camshaft affects engine performance. We've got some great animations that show you how different engine layouts, like single overhead cam (SOHC) and double overhead cam (DOHC), really work. And then we'll go over a few of the neat ways that some cars adjust the camshaft so that it can handle different engine speeds more efficiently.
Camshaft Basics The key parts of any camshaft are the lobes. As the camshaft spins, the lobes open and close the intake and exhaust valves in time with the motion of the piston. It turns out that there is a direct relationship between the shape of the cam lobes and the way the engine performs in different speed ranges. To understand why this is the case, imagine that we are running an engine extremely slowly -- at just 10 or 20 revolutions per minute (RPM) -- so that it takes the piston a couple of seconds to complete a cycle. It would be impossible to
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actually run a normal engine this slowly, but let's imagine that we could. At this slow speed, we would want cam lobes shaped so that: Just as the piston starts moving downward in the intake stroke (called top dead center, or TDC), the intake valve would open. The intake valve would close right as the piston bottoms out. • The exhaust valve would open right as the piston bottoms out (called bottom dead center, or BDC) at the end of the combustion stroke, and would close as the piston completes the exhaust stroke. This setup would work really well for the engine as long as it ran at this very slow speed. But what happens if you increase the RPM? Let's find out. •
When you increase the RPM, the 10 to 20 RPM configuration for the camshaft does not work well. If the engine is running at 4,000 RPM, the valves are opening and closing 2,000 times every minute, or 33 times every second. At these speeds, the piston is moving very quickly, so the air/fuel mixture rushing into the cylinder is moving very quickly as well. When the intake valve opens and the piston starts its intake stroke, the air/fuel mixture in the intake runner starts to accelerate into the cylinder. By the time the piston reaches the bottom of its intake stroke, the air/fuel is moving at a pretty high speed. If we were to slam the intake valve shut, all of that air/fuel would come to a stop and not enter the cylinder. By leaving the intake valve open a little longer, the momentum of the fast-moving air/fuel continues to force air/fuel into the cylinder as the piston starts its compression stroke. So the faster the engine goes, the faster the air/fuel moves, and the longer we want the intake valve to stay open. We also want the valve to open wider at higher speeds -- this parameter, called valve lift, is governed by the cam lobe profile. The animation below shows how a regular cam and a performance cam have different valve timing. Notice that the exhaust (red circle) and intake (blue circle) cycles overlap a lot more on the performance cam. Because of this, cars with this type of cam tend to run very roughly at idle.
BIBLIOGRAPHY 1. www.google.com 2. www.wikipedia.org 3. www.wordweb.info 4. www.marutisuzuki.com 5. www.onlinefreeebooks.net
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6. www.eBooks.eDom.co.uk 7. www.auto.howstuffworks.com
8. Automobile Engineering Vol I and II by Kirpal Singh, Standard Publishers
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Here, I found this golden chance to acknowledge all those people who had blessed, encouraged and supported me technically and morally through all the phases of my training. I thank almighty God for giving me this opportunity to express gratitude to all those who helped me in my training. First of all, I pay my immense gratitude to Principal Dr. M. L. Ohri, Mr. Sukh Chain Singh Dhilon HOD, Mechanical Engg. Department for their valuable guidance. I am also thankful to our T.P.O Mrs. Yaspreet Kaur, who allows me for industrial training. It is my proud to express my heartiest gratitude to my venerable guide to Mr. Diraj Kumar (Manager of Maruti Suzuki) without whose expert guidance and support, this training period would have been compelling. I extend my fort right thanks to my family& friends for their moral support and encouragement throughout my training report.
Vikash Ranjan M.E. (5th SEM.) 7060113075
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KARLO AUTOMOBILE (P) LTD.:-
KARLO AUTOMOBILE (P) LTD. is authorized dealer & servicing company of Maruti Suzuki. India's top automobile manufacturer, Maruti has dealers spread across all over the country. Karlo Automobile is also a car dealer of Maruti Suzuki in India. Karlo Automobiles, Boring Road, Patna, Bihar, India Pin – 800001 Phone Number(S): 0612-2227774, 2540686 Fax- 0612-2540519 E-Mail: [email protected] & [email protected]
INTRODUCTION:-
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➢ Maruti Suzuki India Limited is a leading four-wheeler automobile manufacturer in South Asia. It is largely credited for having brought in an automobile revolution to India. ➢ It was a joint venture between the Indian government, and Suzuki of Japan. As of May 10 2007, Govt. of India sold its complete share to Indian financial institutions. With this, Govt. of India no longer has stake in Maruti Udyog. ➢ The company annually exports more than 50,000 cars and has an extremely large domestic market in India selling over 730,000 cars annually. ➢ Maruti Suzuki offers 13 models, Maruti 800, Omni, Alto, Versa, Ritz, Gypsy, A Star, Wagon R, Zen Estilo, Swift, Swift Dzire, SX4, and Grand Vitara. ➢
Maruti Suzuki has manufacturing plants in Gurgaon & Manesar.
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Maruti Suzuki Logo
Maruti Suzuki India Limited is a publicly listed automaker in India. It is a leading four-wheeler automobile manufacturer in South Asia. Suzuki Motor Corporation of Japan holds a majority stake in the company. It was the first company in India to mass-produce and sell more than a million cars. It is largely credited for having brought in an automobile revolution to India. It is the market leader in India and on 17 September 2007, Maruti Udyog was renamed Maruti Suzuki India Limited. The company headquarter is in Gurgaon, Haryana (near Delhi).
Profile:Maruti Suzuki is one of India's leading automobile manufacturers and the market leader in the car segment, both in terms of volume of vehicles sold and revenue earned. Until recently, 18.28% of the company was owned by the Indian government, and 54.2% by Suzuki of Japan. The Indian government held an initial public offering of 25% of the company in June 2003. As of 10 May 2007, Govt. of India sold its complete share to Indian financial institutions. With this, Govt. of India no longer has stake in Maruti Udyog.
Maruti Udyog Limited (MUL)
was established in February 1981, though the actual production commenced in 1983 with the Maruti 800, based on the Suzuki Alto key car which at the time was the only modern car available in India, its' only competitors- the Hindustan Ambassador and Premier Padmini were both around 25 years out of date at that point. Through 2004, Maruti has produced over 5 Million vehicles. Maruti’s are sold in India and various several other countries, depending upon export orders. Models similar to Maruti’s (but not manufactured by Maruti Udyog) are sold by Suzuki and manufactured in Pakistan and other South Asian countries.
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The old logo of Maruti Suzuki India Limited... The company annually exports more than 50,000 cars and has an extremely large domestic market in India selling over 730,000 cars annually. Maruti 800, till 2004, was the India's largest selling compact car ever since it was launched in 1983. More than a million units of this car have been sold worldwide so far. Currently, Maruti Alto tops the sales charts and Maruti Swift is the largest selling in A2 segment. Due to the large number of Maruti 800s sold in the Indian market, the term "Maruti" is commonly used to refer to this compact car model. Till recently the term "Maruti", in popular Indian culture, was associated to the Maruti 800 model. Maruti Suzuki India Limited, a subsidiary of Suzuki Motor Corporation of Japan, has been the leader of the Indian car market for over two decades. Its manufacturing facilities are located at two facilities Gurgaon and Manesar south of New Delhi. Maruti’s Gurgaon facility has an installed capacity of 350,000 units per annum. The Manesar facilities, launched in February 2007 comprise a vehicle assembly plant with a capacity of 100,000 units per year and a Diesel Engine plant with an annual capacity of 100,000 engines and transmissions. Manesar and Gurgaon facilities have a combined capability to produce over 700,000 units annually. More than half the cars sold in India are Maruti cars. The company is a subsidiary of Suzuki Motor Corporation, Japan, which owns 54.2 per cent of Maruti. The rest is owned by the public and financial institutions. It is listed on the Bombay Stock Exchange and National Stock Exchange in India. During 2007-08, Maruti Suzuki sold 764,842 cars, of which 53,024 were exported. In all, over six million Maruti cars are on Indian roads since the first car was rolled out on 14 December 1983. Maruti Suzuki offers 15 models, Maruti 800, Omni,Esteem, Baleno, Alto, Versa, Ritz, Gypsy, A Star, Wagon R, Zen Estilo, Swift, Swift Dzire, SX4, and Grand Vitara. Swift, Swift dzire, A star and SX4 are maufactured in Manesar, Grand
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Vitara is imported from Japan as a completely built unit (CBU), remaining all models are manufactured in Maruti Suzuki's Gurgaon Plant. Suzuki Motor Corporation, the parent company, is a global leader in mini and compact cars for three decades. Suzuki’s technical superiority lies in its ability to pack power and performance into a compact, lightweight engine that is clean and fuel efficient. Maruti is clearly an “employer of choice” for automotive engineers and young managers from across the country. Nearly 75,000 people are employed directly by Maruti and its partners. The company vouches for customer satisfaction. For its sincere efforts it has been rated (by customers) first in customer satisfaction among all car makers in India for nine years in a row in annual survey by J D Power Asia Pacific. Maruti Suzuki was born as a government company, with Suzuki as a minor partner to make a people's car for middle class India. Over the years, the product range has widened, ownership has changed hands and the customer has evolved. What remains unchanged, then and now, is Maruti’s mission to motorize India.
Partner For The Joint Venture:-
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Suzuki Swift
Pressure started mounting on Indira and Sanjay Gandhi to share the details of the progress on the Maruti Project. Since country's resources were made available by mother to her son's pet project. A delegation of Indian technocrats was assigned to hunt a collaborator for the project. Initial rounds of discussion were held with the giants of the automobile industry in Japan including Toyota, Nissan and Honda. Suzuki Motor Corporation was at that time a small player in the four wheeler automobile sector and had major share in the two wheeler segment. Suzuki's bid was considered negligible. In the initial rounds of discussion the giants had their bosses present and in the later rounds related to the technical discussions executives of these automobile giants were present. Osamu Suzuki, Chairman and CEO of the company ensured that he was present in all the rounds of discussion. Osamu in an article writes that it subtly massaged their (Indian delegation) egos and also convinced them about the sincerity of Suzuki's bid. In the initial days Suzuki took all steps to ensure the government about its sincerity on the project. Suzuki in return received a lot of help from the government in such matters as import clearances for manufacturing equipment (against the wishes of the Indian machine tool industry then and its own socialistic ideology), land purchase at government prices for setting up the factory Gurgaon and reduced or removal of excise tariffs. This helped Suzuki conscientiously nurse Maruti through its infancy to become one of its flagship ventures.[3]
Joint Venture Related Issues:-
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A-Star Maruti Suzuki's A-Star vehicle during its unveiling in Pragati Maidan, Delhi. AStar, Suzuki's fifth global car model, was designed and is made only in India. Besides being Suzuki's largest subsidiary in terms of car sales, Maruti Suzuki is also Suzuki's leading research and development arm outside Japan. Relationship between the Government of India, under the United Front (India) coalition and Suzuki Motor Corporation over the joint venture was a point of heated debate in the Indian media till Suzuki Motor Corporation gained the controlling stake. This highly profitable joint venture that had a near monopolistic trade in the Indian automobile market and the nature of the partnership built up till then was the underlying reason for most issues. The success of the joint venture led Suzuki to increase its equity from 26% to 40% in 1987, and further to 50% in 1992. In 1982 both the venture partners had entered into an agreement to nominate their candidate for the post of Managing Director and every Managing Director will have a tenure of five years. Initially R.C.Bhargava, was the managing director of the company since the inception of the joint venture. Till today he is regarded as instrumental for the success of Maruti Udyog. Joining in 1982 he held several key positions in the company before heading the company as Managing Director. Currently he is on the Board of Directors.[6] After completing his five year tenure, Mr. Bhargava later assumed the office of Part-Time Chairman. The Government nominated Mr. S.S.L.N. Bhaskarudu as the Managing Director on 27 August 1997. Mr. Bhaskarudu had joined Maruti in 1983 after spending 21 years in the Public sector undertaking Bharat Heavy Electricals Limited as General Manager. Later in 1987 he was promoted as Chief General Manager, 1988 as Director, Productions and Projects, 1989 Director, Materials and in 1993 as Joint Managing Director.
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The Suzuki Motor Corporation didn't attend the Annual General Meeting of the Board with the reason of it being called on a short notice.[7] Later Suzuki Motor Corporation went on record to state that Mr. Bhaskarudu was "incompetent" and wanted someone else. However, the Ministry of Industries, Government of India refuted the charges. Media stated from the Maruti sources that Bhaskarudu was interested to indigenise most of components for the models including gear boxes especially for Maruti 800. Suzuki also felt that Bhaskarudu was a proxy for the Government and would not let it increase its stake in the venture.[8] If Maruti would have been able to indigenise gear boxes then Maruti would have been able to manufacture all the models without the technical assistance from Suzuki. Till today the issue of localization of gear boxes is highlighted in the press. The relation strained when Suzuki Motor Corporation moved to Delhi High Court to bring a stay order against the appointment of Mr. Bhaskarudu. The issue was resolved in an out-of-court settlement and both the parties agreed that R S S L N Bhaskarudu would serve up to 31 December 1999, and from 1 January 2000, Jagdish Khattar, Executive Director of Maruti Udyog Limited would assume charges as the Managing Director. Many politicians believed, and had stated in parliament that the Suzuki Motor Corporation is unwilling to localize manufacturing and reduce imports. This remains true, even today the gear boxes are still imported from Japan and are assembled at the Gurgaon facility.
Industrial Relations:For most of its history, Maruti Udyog had relatively few problems with its labour force. Its emphasis of a Japanese work culture and the modern manufacturing process, first instituted in Japan in the 1970s, was accepted by the workforce of the company without any difficulty. But with the change in management in 1997, when it became predominantly government controlled for a while, and the conflict between the United Front Government and Suzuki may have been the cause of unrest among employees. A major row broke out in September 2000 when employees of Maruti Udyog Ltd (MUL) went on an indefinite strike, demanding
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among other things, revision of the incentive scheme offered and implementation of a pension scheme. Employees struck work for six hours in October 2000, irked over the suspension of nine employees, going on a six-hour tools-down strike at its Gurgaon plant, demanding revision of the incentive-linked pay and threatened to fast to death if the suspended employees were not reinstated. About this time, the NDA government, following a disinvestments policy, proposed to sell part of its stake in Maruti in a public offering. The Staff union opposed this sell-off plan on the grounds that the company will lose a major business advantage of being subsidised by the Government. The standoff with the management continued to December with a proposal by the management to end the two-month long agitation rejected with a demand for reinstatement of 92 dismissed workers, with four MUL employees going on a fastunto-death. In December the company's shareholders met in New Delhi in an AGM that lasted 30 minutes. At the same time around 1500 plant workers from the MUL's Gurgaon facility were agitating outside the company's corporate office demanding commencement of production linked incentives, a better pension scheme and other benefits. The management has refused to pass on the benefits citing increased competition and lower margins.
Current Sales Of Automobiles:-
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Maruti 800: Launched - 1983 2. Maruti Omni: Launched - 1984 3. Maruti Gypsy: Launched - 1985 4. Maruti Alto: Launched - 2000 5. Maruti Wagon-R: Launched - 2002 6. Maruti Versa: Launched - 2003 7. Maruti Grand Vitara Launched - 2004 8. Maruti Suzuki Swift: Launched - 2005 9. Maruti Suzuki SX4: Launched - 2007 10. Maruti Swift Dzire: Launched - 2008 11. Maruti Suzuki A-STAR: Launched - 2008 12. Maruti Suzuki Ritz: Launched - 2009 13. Maruti Suzuki Estilo: Launched - 2009 1.
Authorized Service Stations:-
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Maruti is one of the companies in India which has unparalleled service network. To ensure the vehicles sold by them are serviced properly, Maruti has 2628 listed Authorized service stations and 30 Express Service Stations on 30 highways across India. Service is a major revenue generator of the company. Most of the service stations are managed on franchise basis, where Maruti trains the local staff. Other automobile companies have not been able to match this benchmark set by Maruti. The Express Service stations help many stranded vehicles on the highways by sending across their repair man to the vehicle.
Maruti Insurance:Launched in 2002 Maruti provides vehicle insurance to its customers with the help of the National Insurance Company, Bajaj Allianz, New India Assurance and Royal Sundaram. The service was set up the company with the inception of two subsidiaries Maruti Insurance Distributors Services Pvt. Ltd and Maruti Insurance Brokers Pvt. Limited. This service started as a benefit or value addition to customers and was able to ramp up easily. By December 2005 they were able to sell more than two million insurance policies since its inception.
Maruti Finance:To promote its bottom line growth, Maruti launched Maruti Finance in January 2002. Prior to the start of this service Maruti had started two joint ventures Citicorp Maruti and Maruti Countrywide with City Group and GE Countrywide respectively to assist its client in securing loan. Maruti tied up with ABN Amro Bank, HDFC Bank, ICICI Limited, Kotak Mahindra, Standard Chartered Bank, and Sundaram to start this venture including its strategic partners in car finance. Again the company entered into a strategic partnership with SBI in March 2003 Since March 2003, Maruti has sold over 12,000 vehicles through SBI-Maruti Finance. SBI-Maruti Finance is currently available in 166 cities across India.
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Citicorp Maruti Finance Limited is a joint venture between Citicorp Finance India and Maruti Udyog Limited its primary business stated by the company is "hirepurchase financing of Maruti vehicles". Citi Finance India Limited is a wholly owned subsidiary of Citibank Overseas Investment Corporation, Delaware, which in turn is a 100% wholly owned subsidiary of Citibank N.A. Citi Finance India Limited holds 74% of the stake and Maruti Udyog holds the remaining 26%. GE Capital, HDFC and Maruti Udyog Limited came together in 1995 to form Maruti Countrywide.[19] Maruti claims that its finance program offers most competitive interest rates to its customers, which are lower by 0.25% to 0.5% from the market rates .Maruti is the best car in the world.
Maruti True Value:Maruti True service offered by Maruti Udyog to its customers. It is a market place for used Maruti Vehicles. One can buy, sell or exchange used Maruti vehicles with the help of this service in India.
N2N Fleet Management:N2N is the short form of End to End Fleet Management and provides lease and fleet management solution to corporates. Their impressive lists of clients who have signed up of this service include Gas Authority of India Ltd, DuPont, Reckitt Benckiser, Sona Steering, Doordarshan, Singer India, National Stock Exchange and Transworld. This fleet management service includes end-to-end solutions across the vehicle's life, which includes Leasing, Maintenance, Convenience services and Remarketing.
Exports:-
Maruti Suzuki has helped India emerge as the fourth largest exporter of automobiles in Asia. Shown here is Maruti Gypsy in Malta.
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Maruti Exports Limited is the subsidiary of Maruti Udyog Limited with its major focus on exports and it does not operate in the domestic Indian market. The first commercial consignment of 480 cars was sent to Hungary. By sending a consignment of 571 cars to the same country Maruti crossed the benchmark of 300,000 cars. Since its inception export was one of the aspects government was keen to encourage. Every political party expected Maruti to earn foreign currency. Angola, Benin, Djibouti, Ethiopia, Europe, Kenya, Morocco, Sri Lanka, Uganda, Chile, Guatemala, Costa Rica and El Salvador are some of the markets served by Maruti Exports.
Automobiles:The automobile is one of the most fascinating devices that a person can own. Automobiles are also one of the most pervasive devices, with a typical American family owning two automobiles. An automobile contains dozens of different technologies -- everything from the engine to the tires is its own special universe of design and engineering. ✔
Car Engines
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Maruti Suzuki Ritz Engine
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If we ever opened the hood of car and wondered what was going on in there? A car engine can look like a big confusing jumble of metal, tubes and wires to the uninitiated. You might want to know what's going on simply out of curiosity. Or perhaps you are buying a new car, and you hear things like "3.0 liter V-6" and "dual overhead cams" and "tuned port fuel injection." What does all of that mean? In this article, we'll discuss the basic idea behind an engine and then go into detail about how all the pieces fit together, what can go wrong and how to increase performance. The purpose of a gasoline car engine is to convert gasoline into motion so that your car can move. Currently the easiest way to create motion from gasoline is to burn the gasoline inside an engine. Therefore, a car engine is an internal combustion engine -- combustion takes place internally. Two things to note: There are different kinds of internal combustion engines. Diesel engines are one form and gas turbine engines are another. See also the articles on HEMI engines, rotary engines and two-stroke engines. Each has its own advantages and disadvantages. There is such a thing as an external combustion engine. A steam engine in oldfashioned trains and steam boats is the best example of an external combustion engine. The fuel (coal, wood, oil, whatever) in a steam engine burns outside the engine to create steam, and the steam creates motion inside the engine. Internal combustion is a lot more efficient (takes less fuel per mile) than external combustion, plus an internal combustion engine is a lot smaller than an equivalent
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external combustion engine. This explains why we don't see any cars from Ford and GM using steam engines.
✔ Internal Combustion The principle behind any reciprocating internal combustion engine: If we put a tiny amount of high-energy fuel (like gasoline) in a small, enclosed space and ignite it, an incredible amount of energy is released in the form of expanding gas. We can use that energy to propel a potato 500 feet. In this case, the energy is translated into potato motion. We can also use it for more interesting purposes. For example, if you can create a cycle that allows you to set off explosions like this hundreds of times per minute, and if you can harness that energy in a useful way, what we have is the core of a car engine! Almost all cars currently use what is called a four-stroke combustion cycle to convert gasoline into motion. The four-stroke approach is also known as the Otto cycle, in honor of Nikolaus Otto, who invented it in 1867. The four strokes are illustrated in fig. They are: • Intake stroke • Compression stroke • Combustion stroke
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• Exhaust stroke You can see in the figure that a device called a piston replaces the potato in the potato cannon. The piston is connected to the crankshaft by a connecting rod. As the crankshaft revolves, it has the effect of "resetting the cannon." Here's what happens as the engine goes through its cycle: 1. The piston starts at the top, the intake valve opens, and the piston moves down to let the engine take in a cylinder-full of air and gasoline. This is the intake stroke. Only the tiniest drop of gasoline needs to be mixed into the air for this to work. (Part 1 of the figure) 2. Then the piston moves back up to compress this fuel/air mixture. Compression makes the explosion more powerful. When the piston reaches the top of its stroke, the spark plug emits a spark to ignite the gasoline. The gasoline charge in the cylinder explodes, driving the piston down. 3. Once the piston hits the bottom of its stroke, the exhaust valve opens and the exhaust leaves the cylinder to go out the tailpipe. Now the engine is ready for the next cycle, so it intakes another charge of air and gas. Notice that the motion that comes out of an internal combustion engine is rotational, while the motion produced by potato cannon is linear (straight line). In an engine the linear motion of the pistons is converted into rotational motion by the crankshaft. The rotational motion is nice because we plan to turn (rotate) the car's wheels with it anyway. Now let's look at all the parts that work together to make this happen, starting with the cylinders.
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✔ Basic Engine Parts The core of the engine is the cylinder, with the piston moving up and down inside the cylinder. The engine described above has one cylinder. That is typical of most lawn mowers, but most cars have more than one cylinder (four, six and eight cylinders are common). In a multi-cylinder engine, the cylinders usually are arranged in one of three ways: inline, V or flat (also known as horizontally opposed or boxer). Different configurations have different advantages and disadvantages in terms of smoothness, manufacturing cost and shape characteristics. These advantages and disadvantages make them more suitable for certain vehicles. Let's look at some key engine parts in more detail. Spark plug the spark plug supplies the spark that ignites the air/fuel mixture so that combustion can occur. The spark must happen at just the right moment for things to work properly. Valves The intake and exhaust valves open at the proper time to let in air and fuel and to let out exhaust. Note that both valves are closed during compression and combustion so that the combustion chamber is sealed. Piston A piston is a cylindrical piece of metal that moves up and down inside the cylinder. Piston rings Piston rings provide a sliding seal between the outer edge of the piston and the inner edge of the cylinder. The rings serve two purposes: • They prevent the fuel/air mixture and exhaust in the combustion chamber from leaking into the sump during compression and combustion. • They keep oil in the sump from leaking into the combustion area, where it would be burned and lost. Most cars that "burn oil" and have to have a quart added every 1,000 miles are burning it because the engine is old and the rings no longer seal things properly.
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Connecting rod the connecting rod connects the piston to the crankshaft. It can rotate at both ends so that its angle can change as the piston moves and the crankshaft rotates. Crankshaft The crankshaft turns the pistons up and down motion into circular motion just like a crank on a jack-in-the-box does. Sump The sump surrounds the crankshaft. It contains some amount of oil, which collects in the bottom of the sump (the oil pan).
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Clutches
If you drive a manual transmission car, you may be surprised to find out that it has more than one clutch. And it turns out that folks with automatic transmission cars have clutches, too. In fact, there are clutches in many things you probably see or use every day: Many cordless drills have a clutch, chain saws have a centrifugal clutch and even some yo-yos have a clutch.
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Diagram of car showing clutch location
Clutches are useful in devices that have two rotating shafts. In these devices, one of the shafts is typically driven by a motor or pulley, and the other shaft drives another device. In a drill, for instance, one shaft is driven by a motor and the other drives a drill chuck. The clutch connects the two shafts so that they can either be locked together and spin at the same speed, or be decoupled and spin at different speeds. In a car, you need a clutch because the engine spins all the time, but the car's wheels do not. In order for a car to stop without killing the engine, the wheels need to be disconnected from the engine somehow. The clutch allows us to smoothly engage a spinning engine to a non-spinning transmission by controlling the slippage between them. To understand how a clutch works, it helps to know a little bit about friction, which is a measure of how hard it is to slide one object over another. Friction is caused by the peaks and valleys that are part of every surface -- even very smooth surfaces still have microscopic peaks and valleys. The larger these peaks and valleys are, the harder it is to slide the object.
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JUNE-AUG 2009
Brakes
We all know that pushing down on the brake pedal slows a car to a stop. But how does this happen? How does your car transmit the force from your leg to its wheels? How does it multiply the force so that it is enough to stop something as big as a car?
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When you depress your brake pedal, your car transmits the force from your foot to its brakes through a fluid. Since the actual brakes require a much greater force than you could apply with your leg, your car must also multiply the force of your foot. It does this in two ways: • Mechanical advantage (leverage) • Hydraulic force multiplication The brakes transmit the force to the tires using friction, and the tires transmit that force to the road using friction also. Before we begin our discussion on the components of the brake system, we'll cover these three principles: Leverage Hydraulics Friction
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Anti-Lock Brakes
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Stopping a car in a hurry on a slippery road can be very challenging. Anti-lock braking systems (ABS) take a lot of the challenge out of this sometimes nervewracking event. In fact, on slippery surfaces, even professional drivers can't stop as quickly without ABS as an average driver can with ABS.
✔ The ABS System
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The theory behind anti-lock brakes is simple. A skidding wheel (where the tire contact patch is sliding relative to the road) has less traction than a non-skidding wheel. If you have been stuck on ice, you know that if your wheels are spinning you have no traction. This is because the contact patch is sliding relative to the ice (see Brakes: How Friction Works for more). By keeping the wheels from skidding while you slow down, anti-lock brakes benefit you in two ways: You'll stop faster, and you'll be able to steer while you stop. There are four main components to an ABS system: Speed sensors Pump Valves Controller
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Anti-lock brake pump and valves
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Speed Sensors The anti-lock braking system needs some way of knowing when a wheel is about to lock up. The speed sensors, which are located at each wheel, or in some cases in the differential, provide this information. Valves there is a valve in the brake line of each brake controlled by the ABS. On some systems, the valve has three positions: In position one, the valve is open; pressure from the master cylinder is passed right through to the brake. In position two, the valve blocks the line, isolating that brake from the master cylinder. This prevents the pressure from rising further should the driver push the brake pedal harder. In position three, the valve releases some of the pressure from the brake. Pump since the valve is able to release pressure from the brakes, there has to be some way to put that pressure back. That is what the pump does; when a valve reduces the pressure in a line, the pump is there to get the pressure back up. Controller The controller is a computer in the car. It watches the speed sensors and controls the valves. ABS at Work There are many different variations and control algorithms for ABS systems. We will discuss how one of the simpler systems works. The controller monitors the speed sensors at all times. It is looking for decelerations in the wheel that are out of the ordinary. Right before wheel locks
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up, it will experience a rapid deceleration. If left unchecked, the wheel would stop much more quickly than any car could. It might take a car five seconds to stop from 60 mph (96.6 kph) under ideal conditions, but a wheel that locks up could stop spinning in less than a second. The ABS controller knows that such a rapid deceleration is impossible, so it reduces the pressure to that brake until it sees acceleration, then it increases the pressure until it sees the deceleration again. It can do this very quickly, before the tire can actually significantly change speed. The result is that the tire slows down at the same rate as the car, with the brakes keeping the tires very near the point at which they will start to lock up. This gives the system maximum braking power. When the ABS system is in operation you will feel a pulsing in the brake pedal; this comes from the rapid opening and closing of the valves. Some ABS systems can cycle up to 15 times per second.
✔ Anti-Lock Brake Diagram Now let's put the parts together to see how anti-lock brakes work as a whole. This diagram provides both a close up view and an example of where the brakes are located in your vehicle.
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Tyres If we’re in the market for new tires, all of the variables in tire specifications and the confusing jargon you might hear from tire salesmen or "experts" might make your purchase rather stressful. Or maybe you just want to fully understand the tires you already have, the concepts at work, the significance of all of those sidewall markings.
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We will explore how tires are built and see what's in a tire. We'll find out what all the numbers and markings on the sidewall of a tire mean, and we'll decipher some of that tire jargon. By the end of this article, you'll understand how a tire supports your car, and you'll know why heat can build up in your tires, especially if the pressure is low. We’ll also be able to adjust your tire pressure correctly and diagnose some common tire problems!
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Automobile Ignition Systems
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The internal combustion engine is an amazing machine that has evolved for more than 100 years. It continues to evolve as automakers manage to squeeze out a little more efficiency, or a little less pollution, with each passing year. The result is an incredibly complicated, surprisingly reliable machine. The coil in this type of system works the same way as the larger, centrally-located coils. The engine control unit controls the transistors that break the ground side of the circuit, which generates the spark. This gives the ECU total control over spark timing. Systems like these have some substantial advantages. First, there is no distributor, which is an item that eventually wears out. Also, there are no high-voltage sparkplug wires, which also wear out. And finally, they allow for more precise control of the spark timing, which can improve efficiency, emissions and increase the overall power of a car.
✔ Car Cooling Systems Cite This! Close
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Please copy/paste the following text to properly cite this HowStuffWorks article: Nice, Karim. "How Car Cooling Systems Work." 22 November 2000. HowStuffWorks.com.
Diagram of a cooling system
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✔ The Basics Inside your car's engine, fuel is constantly burning. A lot of the heat from this combustion goes right out the exhaust system, but some of it soaks into the engine, heating it up. The engine runs best when its coolant is about 200 degrees Fahrenheit (93 degrees Celsius). At this temperature: • The combustion chamber is hot enough to completely vaporize the fuel, providing better combustion and reducing emissions. • The oil used to lubricate the engine has a lower viscosity (it is thinner), so the engine parts move more freely and the engine wastes less power moving its own components around. • Metal parts wear less. There are two types of cooling systems found on cars: liquid-cooled and aircooled.
✔ Liquid Cooling The cooling system on liquid-cooled cars circulates a fluid through pipes and passageways in the engine. As this liquid passes through the hot engine it absorbs heat, cooling the engine. After the fluid leaves the engine, it passes through a heat exchanger, or radiator, which transfers the heat from the fluid to the air blowing through the exchanger.
✔ Air Cooling Some older cars, and very few modern cars, are air-cooled. Instead of circulating fluid through the engine, the engine block is covered in aluminum fins that conduct the heat away from the cylinder. A powerful fan forces air over these fins, which cools the engine by transferring the heat to the air.
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Car Suspensions
When people think of automobile performance, they normally think of horsepower, torque and zero-to-60 acceleration. But all of the power generated by a piston engine is useless if the driver can't control the car. That's why automobile
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engineers turned their attention to the suspension system almost as soon as they had mastered the four-stroke internal combustion engine.
Double-wishbone suspension The job of a car suspension is to maximize the friction between the tires and the road surface, to provide steering stability with good handling and to ensure the comfort of the passengers. In this article, we'll explore how car suspensions work, how they've evolved over the years and where the design of suspensions is headed in the future. If a road were perfectly flat, with no irregularities, suspensions wouldn't be necessary. But roads are far from flat. Even freshly paved highways have subtle imperfections that can interact with the wheels of a car. It's these imperfections that apply forces to the wheels. According to Newton's laws of motion, all forces have both magnitude and direction. A bump in the road causes the wheel to move up and down perpendicular to the road surface. The magnitude, of course, depends on
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whether the wheel is striking a giant bump or a tiny speck. Either way, the car wheel experiences a vertical acceleration as it passes over an imperfection.
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Without an intervening structure, all of wheel's vertical energy is transferred to the frame, which moves in the same direction. In such a situation, the wheels can lose contact with the road completely. Then, under the downward force of gravity, the wheels can slam back into the road surface. What you need is a system that will absorb the energy of the vertically accelerated wheel, allowing the frame and body to ride undisturbed while the wheels follow bumps in the road. The study of the forces at work on a moving car is called vehicle dynamics, and you need to understand some of these concepts in order to appreciate why a suspension is necessary in the first place. Most automobile engineers consider the dynamics of a moving car from two perspectives: Ride - a car's ability to smooth out a bumpy road Handling - a car's ability to safely accelerate, brake and corner These two characteristics can be further described in three important principles road isolation, road holding and cornering. The table below describes these principles and how engineers attempt to solve the challenges unique to each.
✔ Camshafts Working We know about the valves that let the air/fuel mixture into the engine and the exhaust out of the engine. The camshaft uses lobes (called cams) that push against the valves to open them as the camshaft rotates; springs on the valves return them to their closed position. This is a critical job, and can have a great impact on an engine's performance at different speeds. On the next page of this article you can see the animation we built to really show you the difference between a performance camshaft and a standard one.
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In this article, you will learn how the camshaft affects engine performance. We've got some great animations that show you how different engine layouts, like single overhead cam (SOHC) and double overhead cam (DOHC), really work. And then we'll go over a few of the neat ways that some cars adjust the camshaft so that it can handle different engine speeds more efficiently.
Camshaft Basics The key parts of any camshaft are the lobes. As the camshaft spins, the lobes open and close the intake and exhaust valves in time with the motion of the piston. It turns out that there is a direct relationship between the shape of the cam lobes and the way the engine performs in different speed ranges. To understand why this is the case, imagine that we are running an engine extremely slowly -- at just 10 or 20 revolutions per minute (RPM) -- so that it takes the piston a couple of seconds to complete a cycle. It would be impossible to
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actually run a normal engine this slowly, but let's imagine that we could. At this slow speed, we would want cam lobes shaped so that: Just as the piston starts moving downward in the intake stroke (called top dead center, or TDC), the intake valve would open. The intake valve would close right as the piston bottoms out. • The exhaust valve would open right as the piston bottoms out (called bottom dead center, or BDC) at the end of the combustion stroke, and would close as the piston completes the exhaust stroke. This setup would work really well for the engine as long as it ran at this very slow speed. But what happens if you increase the RPM? Let's find out. •
When you increase the RPM, the 10 to 20 RPM configuration for the camshaft does not work well. If the engine is running at 4,000 RPM, the valves are opening and closing 2,000 times every minute, or 33 times every second. At these speeds, the piston is moving very quickly, so the air/fuel mixture rushing into the cylinder is moving very quickly as well. When the intake valve opens and the piston starts its intake stroke, the air/fuel mixture in the intake runner starts to accelerate into the cylinder. By the time the piston reaches the bottom of its intake stroke, the air/fuel is moving at a pretty high speed. If we were to slam the intake valve shut, all of that air/fuel would come to a stop and not enter the cylinder. By leaving the intake valve open a little longer, the momentum of the fast-moving air/fuel continues to force air/fuel into the cylinder as the piston starts its compression stroke. So the faster the engine goes, the faster the air/fuel moves, and the longer we want the intake valve to stay open. We also want the valve to open wider at higher speeds -- this parameter, called valve lift, is governed by the cam lobe profile. The animation below shows how a regular cam and a performance cam have different valve timing. Notice that the exhaust (red circle) and intake (blue circle) cycles overlap a lot more on the performance cam. Because of this, cars with this type of cam tend to run very roughly at idle.
BIBLIOGRAPHY 1. www.google.com 2. www.wikipedia.org 3. www.wordweb.info 4. www.marutisuzuki.com 5. www.onlinefreeebooks.net
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6. www.eBooks.eDom.co.uk 7. www.auto.howstuffworks.com
8. Automobile Engineering Vol I and II by Kirpal Singh, Standard Publishers
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