Electric power steering for parking

Details Electric power steering for parking Electric power steering for parking

1991-09-25

1993-08-24

Mitchell, David M.

Motor vehicles

Compensating devices

B62D 504

Patent

active

052380769

ABSTRACT:
Electric power steering for parking comprising a dc electric booster motor (1) provided with a clutch, a reduction gear (2), a steering wheel torque sensor (3), a vehicle speed sensor and an electronic circuit for control of the motor, characterized, on the one hand, in that the torque sensor delivers all-or-nothing signals, and, on the other hand, in that the boost ratio is proportional to the time during which the torque signal is present when the vehicle travels below a preset speed limit and is canceled when the vehicle exceeds this speed.

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patent: 4753310 (1988-06-01), Hashimoto
patent: 4754829 (1988-07-01), Shimizu
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patent: 4798253 (1989-01-01), Naito
patent: 4825972 (1989-05-01), Shimizu
patent: 4830137 (1989-05-01), Tatemoto et al.
patent: 4947949 (1990-08-01), Morishita et al.
patent: 4957181 (1990-09-01), Oshita et al.
patent: 5097918 (1992-03-01), Daido et al.

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