| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a braking device that uses a disk brake and a drum brake in combination and that stops the disk brake from dragging in the absence of energy loss.SOLUTION: An actuator 6 for brake control has holding solenoid valves 27, 28, pressure reduction solenoid valves 32, 33, and an oil pressure pump 35, and has an ABS function. When a brake pedal 1 is released from being stepped in, the holding solenoid valve 27 of the disk brake 4 and the pressure reduction solenoid valve 3 of the drum brake 4 are closed, the pressure reduction solenoid valve 32 of the disk brake 4 is opened, and the oil pressure pump 35 is driven so as to apply negative pressure only to a cylinder 11 of the disk brake 4.</p> |
