| 摘要 |
<p>PURPOSE:To certainly prevent the theft of car by installing a theft sensor for detecting the wrong getting-in operation and shutting up the brake hydraulic pressure by the feeding/exhaust valve group of a brake device on the basis of the detection signal. CONSTITUTION:When a car is used by a wrong driver, a theft sensor 14 detects the wrong use and operates. When the theft sensor 14 operates, a signal is transmitted into a shut-off control part 15, which outputs an operation instruction to operate the feeding/exhaust valve group 7 of a brake device and allow the cylinders 4 and 6 to shut up the brake hydraulic pressure. Therefore, a hold valve HV is opened, and a decay valve DV is closed, and the brake hydraulic pressure generated by a pump 17 is hut up in the wheel cylinders 4 and 6. Therefore, a brake device operates to lock wheels, and traveling is disabled, and the theft of car is certainly prevented.</p> |
