Motor trouble detection device

Details Motor trouble detection device Motor trouble detection device

1994-09-27

1995-09-12

Chilcot, Jr., Richard E.

Measuring and testing

Brake testing

3644261, G01L 528

Patent

active

054489091

ABSTRACT:
A motor trouble detection device detects trouble in a motor used in an anti-skid brake control system for returning the brake fluid to the reservoir tank. The trouble detection is based on the counter electromotive force generated by the motor which is turned off after driving for a predetermined period. The device includes a first detector for judging whether the counter electromotive force is smaller than a predetermined voltage and a second detector for judging whether the motor is in trouble based upon the first detector.

REFERENCES:
patent: 4831532 (1989-05-01), Kondo
patent: 4872730 (1989-10-01), Takagi et al.
patent: 5005405 (1991-04-01), Ishizeki
patent: 5170343 (1992-12-01), Matsauda
patent: 5236254 (1993-08-01), M uller et al.
European Search Report and Annex.

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