| 摘要 |
PROBLEM TO BE SOLVED: To suppress affection of reduction of W/C pressure of a wheel on a high pressure side due to wraparound of a brake liquid to the wheel on the high pressure side from a wheel on a low pressure side.SOLUTION: When drive of a motor 11 is turned on and W/C of a wheel on a low pressure side is compressed, the drive of the motor 11 is continued until actual W/C pressure of a wheel on a high pressure side in a same system reaches in a predetermined range with respect to target pressure. In particular, when target pressure of the wheel on the low pressure side is larger than a predetermined value Pth1, brake oil pressure of the wheel on the low pressure side is increased and the motor 11 is driven, and the drive of the motor 11 is continued until the W/C pressure of the wheel on the high pressure side recovers considering reduction of the W/C pressure of the wheel on the high pressure side. Thereby, drive time of the motor 11 is reduced as long as possible, so that temperature rise of the motor 11 is prevented and durability of the motor 11 is improved. In addition, the actual W/C pressure of the wheel on the high pressure side which is reduced due to wraparound can be recovered properly, so affection of reduction of the actual W/C pressure of the wheel on the high pressure side can be suppressed. |
