The braking system of family cars usually relies on hydraulic pressure as the transmission medium. Compared with the pneumatic braking system that can provide power, It requires an assistant system to provide assistance to the driver's braking, and the vacuum brake assist system can also be called a vacuum servo system.
Main advantages:
For vehicles driven by diesel engines, because their engines use compression ignition, they cannot provide the same level of airflow at the intake branch pipes. of vacuum pressure, which requires the use of a vacuum pump that can provide a vacuum source. In addition, the engine designed by the vehicle to meet certain vehicle emission and environmental protection requirements also requires it to provide a sufficient vacuum source to ensure that the vehicle can normal operation.