With the rise of new energy vehicles, the brake system of the car is also quietly changing. As an EV Brake Booster Vacuum Pump Supplier, today we will take a look at how the entire brake system evolved to meet the requirements of the new era.
First of all, the brakes need help. When the driver steps on the brake pedal, the push rod connected to the pedal transmits the force to the vacuum booster. The vacuum booster is a device that amplifies the torque by the pressure difference before the atmospheric pressure and the vacuum and then transmits it to the hydraulic brake master cylinder for braking. The vacuum source is generated by the negative pressure of the engine.
Electric vehicles or pure-electric plug-in hybrid vehicles cannot obtain a stable vacuum source because there is no engine or the engine is not working. At the same time, the new energy vehicle itself needs to recover the braking energy through the power motor as much as possible. How to coordinate the distribution of the two braking forces becomes a huge challenge.
One way to deal with the challenges of new energy vehicles like this is to use an electronic vacuum pump. However, the electronic vacuum pump needs to be continuously operated and consumes more fuel. At the same time, once the Brake Booster Vacuum Pump fails, the entire brake system will lose its vacuum boost and affect reliability. Another smarter approach is to use an electronic remote brake system.
Traditional brake system + electronic vacuum pump + electromechanical brake caliper
In the traditional brake system, the driver steps on the brake pedal and pushes the vacuum booster through the push plate to amplify the torque to the master cylinder. The master cylinder drives the hydraulic system to transmit braking force to the ABS/ESP brake anti-lock/electronic stability system controller. The ABS/ESP then distributes the braking force to four wheels depending on the condition of the vehicle.