Rear differential gear lock controller including diagnostic syst

Details Rear differential gear lock controller including diagnostic syst Rear differential gear lock controller including diagnostic syst

1992-08-27

1993-11-02

Focarino, Margaret A.

Motor vehicles

Having four wheels driven

With differential means for driving two wheel sets at...

180248, B60K 1735

Patent

active

052576728

ABSTRACT:
A differential gear lock controller, in which it is judged that a speed sensor has failed if the throttle opening or the number of revolutions of an engine is greater than or equal to a predetermined value and if the state in which the vehicle speed is zero elapses a predetermined time or more, or if the deceleration of the vehicle speed is greater than or equal to a predetermined value. In such a case, the operation of controlling a driver for driving a mechanism for locking a rear differential gear is stopped.

REFERENCES:
patent: 4700797 (1987-10-01), Leiber
patent: 4947325 (1990-08-01), Iwata et al.
patent: 5125490 (1992-06-01), Suzumura et al.

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