Technology – Steer by Wire

12 05 2009

The aim of steer-by-wire technology is to completely do away with as many mechanical components
(steering shaft, column, gear reduction mechanism, etc.) as possible. Completely replacing conventional steering system with steer-by-wire holds several advantages, such as:

  • The absence of steering column simplifies the car interior design.
  • The absence of steering shaft, column and gear reduction mechanism allows much better space utilization in the engine compartment.
  • The steering mechanism can be designed and installed as a modular unit.
  • Without mechanical connection between the steering wheel and the road wheel, it is less likely that the impact of a frontal crash will force the steering wheel to intrude into the driver’s survival space.
  • Steering system characteristics can easily and infinitely be adjusted to optimize the steering response and feel.
  • Mechanicla weight reduction of hydraulic parts and linkages. 

As of 2007 there are no production cars available that rely solely on steer-by-wire technology due to safety, reliability and economic concerns, but this technology has been demonstrated in numerous concept cars and similar technology is in used in military and civilian aviation applications.

Drive by wire Rack and Pinion

Linkage to the wheels

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