Electro-hydraulic power steering assist system for an...

Details Electro-hydraulic power steering assist system for an... Electro-hydraulic power steering assist system for an...

2007-12-04

2007-12-04

Hurley, Kevin (Department: 3611)

Motor vehicles

Steering gear

With fluid power assist

Reexamination Certificate

active

11012730

ABSTRACT:
An electro-hydraulic power steering system for a vehicle includes a booster pump rotated by an electric motor, under control of a computer, as a function of a signal representing speed of the vehicle and a signal representing rate of steering wheel angle change. The computer generates the signal representing the rate of steering wheel angle change by computation from current supplied to the motor to control the booster pump.

REFERENCES:
patent: 4392540 (1983-07-01), Michio et al.
patent: 5762159 (1998-06-01), Matsuoka et al.
patent: 2006/0108172 (2006-05-01), Watanabe
patent: 9-95251 (1997-04-01), None
patent: 11-227620 (1999-08-01), None
patent: 2002-154449 (2002-05-01), None

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