BRAKE CONTROL APPARATUS

PROBLEM TO BE SOLVED: To suppress such a state that a desired braking force cannot be obtained due to variation in pressure increasing performance, which would be caused by individual differences of pressure-increase control valves. SOLUTION: A first differential pressure Plow is maintained for a first time period Tlow by pressure-increase control valves 17 and 37 corresponding to front wheels FR and FL on a higher μ road side, and a second differential pressure Phigh is maintained for a second time period Thigh and repeated to gradually increase a W/C pressure of the wheel on the higher μ road side. Therefore, a variation of pressure-increasing performance of the W/C pressure can be suppressed, and a differential pressure of W/C pressure on the right and left front wheels FR and FL can be suppressed in a fixed range. Thereby, yaw torque applied to a vehicle can be suppressed and a spin can be prevented. In addition, the first differential pressure Plow is gradually reduced in a stepwise fashion without making it at a fixed value, a variation of the differential pressure generated due to individual differences of the first and third pressure-increase control valves 17 and 37 can be further reduced during the gradual pressure increase. COPYRIGHT: (C)2011,JPO&INPIT