Adaptive steering control system

Details Adaptive steering control system Adaptive steering control system

1991-12-18

1993-11-16

Focarino, Margaret A.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180 791, 36447405, B67D 504, B67D 522

Patent

active

052615030

ABSTRACT:
The steering stability of a moving vehicle is maintained by measuring an actual yaw rate of the vehicle and determining a desired yaw rate of the vehicle and producing an output signal in response to a comparison of the actual and desired yaw rates. The steering angle of steerable wheels of the vehicle is controlled in response to the output signal in a manner tending to substantially conform the actual yaw rate to the desired yaw rate, thereby maintaining vehicle stability. The steerable wheels are steered by a steering wheel, and are independently steered by a motor in response to the output signal. The amount of steering provided by the motor is controlled in dependence upon an estimated frictional coefficient between the vehicle and the road, or upon detected values of the environmental temperature and precipitation.

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