SAE technical papers on CD-ROM/SAE technical paper series · 1990 · 22 citations · 1 references
EngineeringAutomotive EngineeringChassis EngineeringVehicle DynamicsVehicle TestingLateral Vehicle DynamicsSteering DynamicsTransient Vehicle ResponseVehicle ControlVehicle Control SystemsVehicle Dynamics TestingFour-wheel SteeringFour-wheel Steering ControlSteer Angle CharacteristicsSteering Angle ControlSteering Control SystemsSteering ResponseSteering System DynamicsTransient Steering Dynamics
<div class="htmlview paragraph">FOUR-WHEEL STEERING (4WS) is beginning to find widespread use as a new approach to improving vehicle dynamics, especially in the medium and high speed ranges. Steering the rear wheels in the same phase as the front wheels enhances vehicle stability. Four-wheel steering systems have an even greater potential to improve stability and steering response through suitable control over the transient characteristics of the rear wheel steer angle.</div> <div class="htmlview paragraph">This paper traces the course of Nissan research and development work on four-wheel steering and the evolution of Nissan's HICAS (4WS) technology. It also describes research activities under way on vehicle dynamics using a newly developed Simulator Vehicle, equipped with a front and rear angle transient control system which makes it possible to vary the dynamic characteristics of the vehicle instantaneously and at will while driving.</div>
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