| 摘要 |
PURPOSE:To improve safety by generating an alarm signal when a car velocity or braking force holding time becomes more than a preset value during holding the braking force in which a solenoid check valve for holding braking force is energized. CONSTITUTION:A solenoid check valve 15 for braking is interposed in an oil pressure route 16b for feeding braking oil to a wheel brake 17 at the time of braking, and when designated braking force holding conditions are satisfied in a control unit 14, the solenoid check valve 15 is energized to hold the braking force. Judgement on whether the braking force holding conditions are satisfied or not is conducted according to output signals of an accel switch 2, a clutch sensor 3, a foot brake switch 7, a neutral switch 9, a car velocity sensor 11 and so on. In this case, in the control unit 14, on judging that a vehicle moves with the decrease in braking force and a car velocity becomes more than a preset value during holding the braking force, an indicator 20 is energized to give a warning.
|
