Method and apparatus for non-linear damping of an electric assis

Details Method and apparatus for non-linear damping of an electric assis Method and apparatus for non-linear damping of an electric assis

1994-10-31

1997-04-22

Teska, Kevin J.

Boots, shoes, and leggings

180443, 180446, 318432, 318434, 74388PS, B62D 504

Patent

active

056234090

ABSTRACT:
An electric assist steering system (10) comprises a steering torque sensor (110) and an electric assist variable reluctance motor (26) operatively connected to a steering member (20). A motor control signal is provided in response to a value of the torque signal for control of the assist motor. A motor velocity sensor (200) senses velocity of the power assist motor and a vehicle speed sensor (119) senses the vehicle speed. A control circuit (220, 210, 142) modifies the motor control signal in response to the sensed motor velocity and the sensed vehicle speed signal so as to provide non-linear damping of the motor for vehicle yaw rate control.

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