Electric power steering system

Details Electric power steering system Electric power steering system

1985-11-26

1987-05-12

Love, John J.

Motor vehicles

Including one or more ski-like or runner members

With at least one surface-engaging propulsion element

180 791, B62D 506

Patent

active

046642110

ABSTRACT:
A system having a motor operatively connected to a steering system for reducing the steering effort is provided with a torsion torque sensor for detecting torsion torque in the steering system during a steering operation, and a steering angle sensor provided for detecting steering angle. In response to the output signal of the torsion torque sensor, an assist signal is produced, and in response to the output of the steering angle sensor, a return signal is produced and a reducing signal dependent on the speed of steering of a steering wheel is produced. The reducing signal is added to the assist signal thereby reducing the assist signal, so that the output torque of the motor is decreased. When the steering wheel is stopped in a steered position the output torque of the motor is produced in the return direction of the steering wheel.

REFERENCES:
patent: 4437532 (1984-03-01), Nakamura et al.

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