Patent ID: 7422294
Filing Date: 2008-09-09
Classification: B60T

Abstract:
1. A vehicle brake system comprising: a pump driven by a motor; an accumulator, in which a working fluid discharged from the pump is accumulated under pressure; a wheel cylinder to which the working fluid from the accumulator is supplied and that generates braking force on a wheel that is mounted on the vehicle; an abnormality detection unit that detects an abnormality in the vehicle brake system; a pressure increase determination unit that determines whether there is a need to increase pressure to the wheel cylinder; and a heat generation suppression unit that operates the motor intermittently when an abnormality is detected, operates the motor when there is a need to increase pressure to the accumulator even if the motor is stopped during operation of the motor intermittently, and inhibits the motor operation when there is no need to increase pressure to the accumulator even if the brake operation is initiated during operation of the motor intermittently, so as to suppress heat generation by the motor when the abnormality is detected.