Drive By Wire

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What is drive-bywire?

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How does it work?

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What’s the point?

Steering by Wire 

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How does it work? Sidestick  

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Daimlerchrysler Mercedes

Guida 

Bertone/SKF

What’s the Point?

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Variable steering Safety Implications  

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No Steering Column Intelligent Steering

Better Sitting Position?

Clutch and gearshift actuators.

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Purely Electromechanical system.

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The Filo employs a conventional Hpattern manual shift gearbox

(Pushing the button)

Transducer

(Disengages clutch)

(Change from first to second gear)

Advantages and Disadvantages 

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Quicker response times More relaxing (No physical effort) All controls on one panel

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Easy Mistakes Technologically complex More costly? Vulnerable to EM interference.

Electronic Throttle Control

ETC Block Diagram

Altitude Compensation

Speed Governing

Adaptive Braking Systems • refers to a number of devices designed to avoid wheel lock during hard and panic braking conditions • designed around system hydraulics, sensors, and control electronics.

Types - Anti-lock - Anti skid - Advanced Anti-skid

Anti-lock • Low cost • One wheel sensor on the differential, • One control circuit and a system controller => improves stability and only affects the real wheel

Anti Skid • Provide the next level by adding control to all wheels • 3 wheel sensors • 3 controller circuits and the system controller => provides both steer-ability and stability during heavy braking. Advanced Anti Skid • 4 wheel speed sensors • 4 control circuits • a high performance control system => provides greatly increased control and decreased stopping distances, split surface control, and automatic parameter adjustment

The Future 

Fully integrated drive by wire - Safer cars - Easier to drive - Increased reliability - Reduced cost