Electric power steering system

Details Electric power steering system Electric power steering system

1988-06-06

1989-10-24

Pekar, John A.

Motor vehicles

Compensating devices

180140, B62D 504, B62D 602

Patent

active

048755419

ABSTRACT:
A system having a motor operatively connected to a steering system for reducing the steering effort. The system is provided with a torsion torque sensor provided for detecting torsion torque generating in the steering system in steering operation. In response to the output signal of the torsion torque sensor, an assist signal is produced. The system has a dead zone for the output signal of the torsion torque sensor. Only when the output signal exceeds the dead zone, the assist signal is produced to operate the motor.

REFERENCES:
patent: 4629952 (1986-12-01), Shimizu
patent: 4664211 (1987-05-01), Oshita et al.

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