Power steering device

Details Power steering device Power steering device

1996-10-17

1999-09-21

Mai, Lanna

Motor vehicles

Steering gear

With fluid power assist

701 42, B62D 506

Patent

active

059541520

ABSTRACT:
A power steering device has a hydraulic actuator that generates steering assistance power by using hydraulic fluid fed from a pump driven by a brushless electric motor. The device controls the motor's rotation speed to have a preset steering assistance speed in a steering assistance mode, and a preset standby speed in a steering assistance release mode. The motor rotation speed is set to the steering assistance speed after being set to a maximum speed that exceeds the steering assistance speed in the steering assistance mode.

REFERENCES:
patent: 4392540 (1983-07-01), Michio et al.
patent: 4552240 (1985-11-01), Takeshima et al.
patent: 4557343 (1985-12-01), Pickering
patent: 4730686 (1988-03-01), Shimuzi
patent: 5505275 (1996-04-01), Phillips
patent: 5641033 (1997-06-01), Langkamp

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