ESP is mainly used to deal with the risk of tail out of control during emergency obstacle avoidance and continuous turning. In case of emergency avoidance, ESP intervenes to increase the driving wheel power; When the tail-flick trend occurs, ESP will brake the wheel on the other side to reduce the rotation, thus helping the vehicle to follow the driver's steering intention.
The main reasons for the esp fault light are: poor combustion state (the main reason for the engine fault light); Engine knock; Internal reasons (poor fuel quality; The inside of the engine cylinder is not clean and carbon has accumulated). The research of American Highway Safety Administration (NHTSA) also shows that using ESP as a standard configuration can effectively reduce 34% of automobile bicycle accidents and 765,438+0% of automobile rollover accidents, while SUV bicycle accidents can even be reduced by 59%. Therefore, the role of esp in driving safety is self-evident.
On the basis of ABS and TCS, ESP includes yaw rate sensor, lateral acceleration sensor and steering wheel angle sensor. It can be said that ESP is the function collection and optimization of ABS and TCS. It is not an independent system, and its structure is very complicated. In addition, it is extremely sensitive, so there are many reasons for its fault light to light up. It's best to go to the 4S shop and repair the fault with a special diagnostic instrument.
(Photo/Text/Photo: Hu Qiaoyun) @20 19