4 wheel steering
4 wheel steering or all wheel steering is a system employed by some vehicles to increase vehicle stability while maneuvering at high speed, or to decrease turning radius at low speed. In most 4-wheel steering systems, the rear wheels are steered by a computer and actuators. The rear wheels generally cannot turn as far as the front wheels. Sports cars sometimes include 4-wheel steering for stability at high speeds. When performing an abrupt lane change at highway speeds, for example, a car with 4-wheel steering will avoid rear suspension loading common in 2-wheel steering cars. Because the rear wheels steer in the same direction as the front wheels, the car is transitioned more gently into turning. Alternatively, several systems (including Delphi's Quadrasteer) allow for the rear wheels to be steered in the opposite direction as the front wheels during low speeds. This allows the vehicle to turn in a significantly smaller radius—sometimes critical for large trucks or vehicles with trailers.
Cars with 4 wheel steering GMC Sierra (2002) Honda Prelude (1988) Mitsubishi GTO (also sold as the Mitsubishi 3000GT and the Dodge Stealth) Nissan Skyline GT-R
|
