Driver current limiting method in electric power steering appara

Details Driver current limiting method in electric power steering appara Driver current limiting method in electric power steering appara

1992-07-20

1994-04-05

Oberleitner, Robert J.

Motor vehicles

Compensating devices

180142, 318489, B62D 504

Patent

active

052996484

ABSTRACT:
According to a current limiting method in an electric power steering apparatus, a steering angular speed and the direction of a drive current are monitored. A condition in which a steering wheel is locked is discriminated from a condition in which the steering wheel is turned on the basis of combinations of the steering angular speed and the drive current direction. Processing of limiting a current value of an excessive drive current is executed only when the condition in which the steering wheel is locked is determined.

REFERENCES:
patent: 4753310 (1988-06-01), Hashimoto
patent: 5040630 (1991-08-01), Murishita
patent: 5150021 (1992-09-01), Kamano
patent: 5156227 (1992-10-01), Taniguchi
patent: 5182711 (1993-01-01), Takahashi
patent: 5202830 (1993-04-01), Tsurumiya

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