| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique effective to reduce energy consumption at an electric hydraulic pressure generation source for supplying a hydraulic fluid in a vehicular hydraulic pressure brake apparatus.SOLUTION: A brake ECU 50 executes: a brake operation start control mode, when a braking operation of a brake pedal 10 is started, for outputting a closure instruction signal to a third control valve V6 until a given changeover condition is established in the state of both first and second control valves V1, V2 being open, and variably controlling a degree of opening of a fourth control valve V7 on the basis of hydraulic pressure of a drive fluid chamber C2; and switching from the brake operation start control mode to a normal control mode, when a given switchover condition is established, for variably controlling a degree of opening of a third control valve V6 on the basis of hydraulic pressure of a reactive force fluid chamber C1 in the state of both the first and second control valves V1, V2 being open, and variably controlling a degree of opening of the fourth control valve V7 on the basis of hydraulic pressure of the drive fluid chamber C2. |
