| 摘要 |
A holding valve (61) is provided on each of individual flow passages (51) for connecting a main flow passage (52) connected to an accumulator (32) of a power hydraulic pressure generation device (30) and each of wheel cylinders (42). The holding valve (61) permits, in an open state, communication between an upstream side and a downstream side so as to transmit a hydraulic pressure from the accumulator (32) to the wheel cylinder (42), and shuts off, in a closed state, the communication between the upstream side and the downstream side. One-way valves (CV1, CV2) each for permitting only communication from the downstream side to the upstream side to decrease the hydraulic pressure in the wheel cylinder (42) are respectively provided in parallel with holding valves (61 RR, 61 RL), among the holding valves (61), provided for a right-and-left-wheel side brake system configured so that a hydraulic pressure on the main flow passage (52) side (upstream side) to which the hydraulic pressure is transmitted from the accumulator (32) is always equal to or more than a hydraulic pressure on the wheel cylinder (42) side (downstream side). |
