Active Wheels/ Hub Motors Ashwin Thottumkara Full Ppt

ACTIVE

WHEELS

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Ø In 2008, Michelin reinvented the wheel at the paris motor show. Ø The illustration was shown in two concept cars: Venturi Volage& WILL. Ø Venturi was made with all the four active wheels while WILL had just the two in the front active. Ø 2

What is active wheel ? ØMichelin’s Active Wheel is an intelligent wheel capable of propelling cars without gasoline. ØIt has got two motors which sit inside the hub. § one to propel the car. § another for active suspension system. 3

MICHELIN ACTIVE WHEEL

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ACTIVE SUSPENSION SYSTEM Ø Active suspension system controls vertical movement of the wheels by an on boardsystem. Ø This system has the capability to adjust itself continously to changing road conditions by artificially extending the design parameters. Ø It has an extremely fast response time 3/1000 ths of a second. 5

INSIDE THE ACTIVE WHEEL

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COMPONENTS OF ACTIVE SUSPENSION SYSTEM 1.Sensors: various sensors installed around vehicle to monitor vehicle conditions. 2.Electronic control unit (ECU):In this microcomputer, calculations are made so as to make the necessary adjustments in the suspension. 3.Actuators: Instructions from the ECU are converted into electrical signals and directed to various

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Typical arrangement of a Active suspension system

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ACTIVE WHEELS POWERED BY?? 1.FUEL CELLS:

2 . LIT H IU M IO N : B A TT E R IE S :

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ADVANTAGES OF USING ACTIVE WHEEL ØPa sse n g e r sa fe ty in cre a se d . ØFre e s u p sp a ce th a t w o u ld n o rm a lly h o u se th e e n g in e , d iffe re n tia lg , e a rb ox , tra n sm issi sh ØoA ncti vea ftw. h e e l m a ke s fa ste r tu rn s in p o o r co n d itio n s.

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CONCERNS REGARDING ACTIVE WHEEL ØA ctive w h e e ls a re a n y w h e e ls.

h e a vie r th a n

ØR o u tin g o f h ig h vo lta g e e le ctric ca b le s a d ja ce n t to w h e e ls.

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CONCLUSION §  An EV can be redesigned from top to bottom since all key components— the engine, electrical suspension systems, tyre and brakes—are now integrated in the wheel. § Simplifying vehicles creates new opportunities in vehicle design by freeing styling teams from constraints previously thought to be inevitable 14

REFERENCES Ø“ A ctive su sp e n sio n syste m ” b y S co tt M e m m e r. Ø“ M ich e lin u n ve ils A ctive w h e e l in a ffo rd a b le e le ctric ca r” b y C h riste n e Le p isto . Ø“ G e ttin g th ro u g h w ith o u t g a so lin e - T h e M o ve to H yd ro g e n fu e lce ll” , S cie n ce & Te ch n o lo g y re vie w . 15

V EN TU R I V O LA G E

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Thank

you

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