| 摘要 |
<p>A vehicle brake device A is provided with a master cylinder 10 , a reservoir tank 12 , solenoid valves 46 and 48 for adjustably draining brake oil from outlet ports 10 a, 10 b of the master cylinder 10 to the reservoir tank 12 , a collision detection sensor 68 for detecting a collision of the vehicle, a fluid pressure meter 61 for detecting the master cylinder pressure, and an ECU 70 . The ECU 70 detects the pushing-up of the brake pedal 11 based on the occurrence of a collision and the master cylinder pressure, and upon detection of the pushing-up, controls the solenoid valves 46 and 48 to adjust the draining of the brake oil so that the brake pedal 11 is withdrawn. Thus, a time point when the brake pedal 11 begins to be pushed up by the cause of the vehicle collision can be detected accurately and reliably, and the brake pedal 11 can be withdrawn accurately in dependence on the pushing-up. This reliably secures an anchorage upon which the driver keeps his body balance and reliably prevents an excess load from being exerted on the driver.</p> |
