| 摘要 |
PROBLEM TO BE SOLVED: To improve a hydraulic source device having an electromagnetic actuator. SOLUTION: When a tread force applied to a brake pedal 32 by a driver reaches a set value or more and hydraulic pressures of pressurizing rooms 46 and 48 reach a set value or more, an electric motor 90 is operated. In this case, a feed current to the electric motor 90 is feedback-controlled based on the both of the tread force and the hydraulic pressures of the pressurizing rooms so that, even if the electric motor 90 is started late for a brake operation, the hydraulic pressures of the pressurizing rooms 46 and 48 can quickly approach to a target value so as to improve the responsiveness. |
