| 摘要 |
PROBLEM TO BE SOLVED: To promptly finish driving of a booster driving device after releasing of brake pedal operation, in a device driving a vacuum booster by a booster driving device so as to keep a stop state when a vehicle temporarily stops on a slope. SOLUTION: When a vehicle temporarily stops on a slope, the vacuum booster VB is driven by a booster driving device BD regardless of operation of a brake pedal BP, thereby supplying brake hydraulic pressure to a wheel cylinder WC. Especially, at the expiration of a predetermined time interval after detecting that the brake pedal BP is changed from an operating state to a non-operating state, and when detecting that an accelerator pedal AP is operated during the predetermined time interval, driving of the vacuum booster by the booster driving device is finished. |
