What is the automobile electric vacuum pump
Automotive electric vacuum pump (EVP) is an important auto parts, mainly used in automotive braking system, by pumping vacuum to increase braking force. The electric vacuum pump is connected with the vacuum booster pump to extract the vacuum, so that the two chambers of the vacuum booster pump produce a pressure difference of 1 atmosphere, thereby increasing the braking force. It can monitor the vacuum changes in the supercharger with the help of vacuum sensors to ensure that there is enough supercharging effect under various driving conditions, which is related to the safety of the car .
The working principle of the electric vacuum pump is to provide power through the motor to drive the motor on the pump body to carry out piston movement and produce vacuum. Its function is to produce negative pressure and increase braking force. The vacuum booster effect depends on the relative vacuum degree, that is, the ratio of the negative pressure value in the booster cylinder to the external atmospheric pressure value. Electric vacuum pumps are usually directly associated with brake signals, and start and stop triggers are associated with brake signals to improve the booster effect of continuous braking .
Electric vacuum pumps are used in electric vehicles, turbocharged gasoline engines and diesel engines. In diesel engines, it replaces traditional mechanical vacuum pumps to save energy. In addition, the electric vacuum pump also refers to the electric vehicle platform (EVP), which is a chassis structure or infrastructure designed specifically for electric vehicles, covering key components such as batteries, motors and electronic systems to optimize vehicle performance, safety and efficiency, reduce costs and improve scalability .
The main role of the automobile electric vacuum pump is to provide vacuum power for the brake system to ensure that the vehicle can provide enough power under various working conditions.
The specific role of electric vacuum pump in automobile
provide vacuum power : electric vacuum pump through the motor drive, produce negative pressure, enhance the braking force of the brake system. In electric vehicles, since there is no traditional engine to provide a vacuum source, the electric vacuum pump becomes particularly important to provide vacuum power for the brake master pump and ensure the normal operation of the brake system.
Improve braking performance and safety : electric vacuum pump can improve braking response speed and stability, fast and reliable braking in emergency time, greatly improving vehicle safety performance. It monitors the vacuum change in the booster through the vacuum sensor to ensure a stable boost effect in a variety of driving conditions.
Suitable for different models : electric vacuum pump is suitable for automatic vehicles, turbocharged engine vehicles and electric vehicles. It can be used not only for hydraulic power brake systems, but also for pneumatic power brake systems to provide stable vacuum power, independent of engine speed.
Working principle of electric vacuum pump
Electric vacuum pump is mainly composed of motor, pump body, rotor and blade and other components. In the working process, the motor drives the rotor to rotate, the blade on the rotor moves in the pump body, and the vacuum is extracted and discharged by periodically changing the volume of the pump body. When the car is braking, the electric vacuum pump provides the necessary power source for the brake booster by pumping the vacuum, so as to slow down or stop the car.
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