brake priority system (Brake Override System BOS), i.e., the driver depresses the brake pedal, regardless of how the throttle signal, the oil supply system to reduce rapidly to a minimum, then reduced engine idling mode.
1. Noun interpretation brake priority system
brake priority system (Brake Override System BOS), i.e., the driver depresses the brake pedal, regardless of how the throttle signal, the oil supply system quickly reduced to a minimum, then reduced engine idling mode.
2. The brake priority system works
“brake override system” works: first, to start the throttle when the brakes to work state, which means that the vehicle is running, first depress the accelerator pedal and keep the depth, followed by the left foot under the brake pedal, At this point the computer will transmit signals to the throttle sensor and the fuel injection signal to a minimum. The system is divided into: mechanical throttle cable with electronic throttle and electronically controlled, but no matter what the form of implementation, the final results are the same, brake and throttle to avoid a fight, resulting in brake failure. In an example cable type accelerator pedal, the engine has a throttle switch at the top, have an upper semicircular wire pulled. The wire leads directly to the throttle pedals. When a step on the gas pedal, the wire pulled the throttle switch to open the throttle. But in fact there is the wire connecting two throttle switch. Wherein a is the gateway to the accelerator pedal, the other buffer is pulling a throttle. Because if there is no buffer, when a foot release the gas pedal, throttle back to idle at once, then it will feel “thump” in the car about channeling the car, very comfortably with the car. So when release the throttle, throttle due to a buffer, not all of a sudden the throttle down, but slow down. When the accelerator pedal is depressed greater the intensity, the more obvious the effect of the throttle buffer. So when the brakes go off the accelerator, the car brakes brake is not just inertia, as well as high-speed operation of the engine! Because the throttle is not yet fully returned to idle. Brake priority system allows the throttle oil supply system immediately return to the idle position, even if the other foot to step on the accelerator, or throttle stuck, do not give the engine fueling. Even normal braking (braking is not under such extreme conditions while throttle condition), and a vehicle equipped with a brake system without the system preferentially compared to the braking distance will be significantly shortened, so the safety performance of vehicles It has greatly improved.