Only two manufacturers, Bosch and TRW, are electronic stability control systems and driver assistance safety systems for electric vehicles, which can help avoid danger. When the vehicle is extremely unstable due to sharp turn or lane change, the stability of the vehicle can be compensated by wheel braking or engine torque control. The English name of body stability system is not only ESP, but also a patent registered by Bosch Company in Germany. In fact, its real scientific name should be ESC (electronic stability control), but it is used to the name ESP, so it has not been renamed. Other car manufacturers also have systems with the same function, but with different names. Honda is called VSA, Toyota is called VSC, Nissan is called VDC and BMW is called DSC.
The working principle of ESP is a more advanced function derived from ABS braking anti-lock and ASR traction control system. It can judge the driving condition of the car through the sensors distributed on the car and intervene the power. It can brake one or more wheels independently at the same time, thus maintaining the stability of driving conditions and the controllability of direction.