| 摘要 |
The device senses the impact of a vehicle backing into an object, and automatically applies the brakes of an ordinary hydraulic brake system to stop the vehicle very quickly, before any significant damage can be done. The device uses a pneumatic cylinder to quickly and powerfully pull on the brake pedal of the vehicle when the vehicle is in reverse gear and an impact is sensed. A small, light-weight and relatively inexpensive air compressor which runs off of the battery of the vehicle and a reservoir are used to supply the air cylinder. The brakes stay in the actuated condition until the vehicle is taken out of reverse gear; then the air cylinder is vented to atmosphere automatically, and the brake pedal is released to return it to its initial position and enable the normal operation of the vehicle. The device can be supplied in the form of a kit to be used to easily modify existing vehicles without invading the hydraulic brake lines or vacuum system of the vehicle. |
