Electric power steering system for a motor vehicle

Details Electric power steering system for a motor vehicle Electric power steering system for a motor vehicle

1989-11-27

1991-06-04

Shoop, Jr., William M.

Electricity: motive power systems

Constant motor current, load and/or torque control

180 791, 180142, 318489, B62D 504

Patent

active

050217216

ABSTRACT:
An electric power steering system for an automobile which includes a steering shaft having a steering torque transmitting shaft. The electric power steering system includes a housing mounted on the steering torque transmitting shaft, a torsion torque sensor, in the housing, for detecting a torsion torque in the steering shaft during a steering operation to generate a torsion torque signal representing the detected torsion torque, and a controlling unit for providing a drive signal, in response to the torsion torque signal, to control an electric motor, mounted to the housing and operatively connected to the steering torque transmitting shaft, for reducing a steering effort. The controlling unit is integrally mounted to the housing.

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patent: 4522278 (1985-06-01), Kitagawa et al.
patent: 4629952 (1986-12-01), Shimizu
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patent: 4741408 (1988-05-01), Bausch et al.
patent: 4756376 (1988-07-01), Shimizu
patent: 4773498 (1988-09-01), Eto et al.
patent: 4865143 (1989-09-01), Hashimoto et al.

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