Device for judging normal operation of brake system based upon c

Details Device for judging normal operation of brake system based upon c Device for judging normal operation of brake system based upon c

1999-03-05

2000-10-10

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

Braking pressure demand or braking force desire

3031134, B60T 712

Patent

active

06129425&

ABSTRACT:
In a device for judging a normal operation of a brake system of a vehicle such as an automobile by judging if the stroke of the brake pedal depression detected by a stroke sensor and the master cylinder pressure detected by a pressure sensor are correlated with one another within a range determined for a judgment of a normal operation of the brake system, the device detects speed of change of at least one of the stroke and the pressure, and refrains from executing the judgment when at least one of the stroke change speed and the pressure change speed is not smaller than a threshold value determined therefor.

REFERENCES:
patent: 4678243 (1987-07-01), Leiber
patent: 4776643 (1988-10-01), Leiber
patent: 5931545 (1999-08-01), Yonemura et al.
patent: 5978725 (1999-11-01), Kagawa
patent: 5984429 (1999-11-01), Nell et al.
patent: 6007160 (1999-12-01), Lubbers et al.

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