Vehicular braking control apparatus and abnormality...

Details Vehicular braking control apparatus and abnormality... Vehicular braking control apparatus and abnormality...

2006-03-21

2006-03-21

Graham, Matthew C. (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

With failure responsive means

C303S113400, C303S113200, C303SDIG011, C303S116200, C303S122110

Reexamination Certificate

active

07014277

ABSTRACT:
In an electronic control brake system capable of controlling the braking force by adjusting the hydraulic pressure applied to each wheel cylinder through the use of a pressurization source and a hydraulic pressure adjusting portion, the hydraulic pressure applied to a wheel cylinder is increased by a pressurization source while the brake is not operated during a stop of the vehicle. After that, a master cutoff valve is opened so as to release the hydraulic pressure to a master cylinder. Changes in the master pressure are investigated via a master pressure sensor so as to determine whether there is an abnormality in a stroke simulator or a simulator cutoff valve.

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