What is the principle of an electric vehicle braking system?

3 Answers
LeJune
07/29/25 5:14pm
The principle of an electric vehicle braking system is to generate significant friction, converting the vehicle's kinetic energy into thermal energy. Below is relevant information about the braking system: Introduction: The braking system consists of a control system, hydraulic system, and power assist system. Working Principle: The principle of the braking system is to generate substantial friction, converting the vehicle's kinetic energy into thermal energy. As is well known, energy cannot be created or destroyed, but only transformed from one form to another or transferred from one object to another, with the total amount of energy remaining constant. During acceleration, a vehicle converts chemical energy into thermal and kinetic energy, while during braking, the braking system converts the vehicle's kinetic energy into thermal energy, which is then dissipated into the air.
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DiMiles
08/14/25 7:45am
I often encounter braking-related situations while commuting in my electric car, and I've noticed it's quite different from traditional vehicles. When you press the brake, the system prioritizes using the electric motor for braking, converting the vehicle's forward motion energy into electricity and recharging the battery. This not only slows the car down but also saves on electricity costs. With light braking, this method alone can bring the car to a stop; however, during emergency braking or on slopes, the mechanical brake discs will engage, providing friction braking like in conventional cars to ensure a safe and stable stop. The entire process is intelligently controlled by the computer, feeling very smooth, especially during frequent starts and stops in urban areas where the recovered energy can increase driving range. However, it's important to keep the braking system clean to avoid dirt buildup affecting sensitivity.
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DeAiden
10/13/25 5:44am
In electric vehicles, the braking principle is quite interesting: it's a dual approach. First, the electric motor acts as a generator, converting kinetic energy into electrical energy and storing it back in the battery the moment you hit the brakes. This is called regenerative braking, which is highly efficient and reduces waste. Second, if stronger braking is needed or on slippery downhill roads, the system seamlessly switches to traditional friction brake discs or drums, slowing the vehicle through physical friction. The electronic control unit monitors the entire process to ensure smooth transitions without jerking, avoiding energy loss and improving response speed. In daily driving, software updates are crucial because older versions may affect recovery efficiency.
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