Motor-driven power steering system for a vehicle

Details Motor-driven power steering system for a vehicle Motor-driven power steering system for a vehicle

1987-03-03

1988-07-05

Pekar, John A.

Motor vehicles

Compensating devices

74388PS, B62D 504

Patent

active

047548304

ABSTRACT:
A motor-driven power steering system for a vehicle having a torque sensor for detecting operator-induced steering torque resulting from steering force exerted on a steering wheel by an operator and generating a voltage signal representative thereof and a motor having a field coil and an armature and connected to transmit a rotating force to said steerable road wheels for power-assisting steering motion caused by the operator through the steering wheel. Electric switching elements are interposed between a battery and the field coil of the motor for controlling current to be supplied to said field coil so as to change the rotational direction of said motor, and a control means connected to receive the voltage signal of the torque sensor for controlling the operation of the electric switching elements.

REFERENCES:
patent: 4538698 (1985-09-01), Hashimoto et al.

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