Motor-driven power steering system for a vehicle

Details Motor-driven power steering system for a vehicle Motor-driven power steering system for a vehicle

1987-05-27

1989-08-29

Lall, Parshotam S.

Boots, shoes, and leggings

180 791, 180142, 74388PS, B62D 504

Patent

active

048623660

ABSTRACT:
A motor-driven power steering system for a vehicle capable of changing into a non-power assisted manual steering mode by means of a control unit when a speed sensor detects that the vehicle speed has exceeded a prescribed level. When the speed sensor has failed and/or wiring connecting the speed sensor to the control unit is broken, the control unit detects such sensor failure or wiring breaks and operates to change the steering system into a non-power assisted manual steering mode, thereby improving safety in high-speed driving of the vehicle.

REFERENCES:
patent: 4573545 (1986-03-01), Kalns
patent: 4582155 (1986-04-01), Ohe
patent: 4651840 (1987-03-01), Shimizu et al.
patent: 4715463 (1987-12-01), Shimizu
patent: 4730686 (1988-03-01), Shimizu
patent: 4735271 (1988-04-01), Shimizu

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