What does ESP in a car mean?
1 Answers
ESP is a general term for systems or programs designed to enhance vehicle handling performance while effectively preventing loss of control when the car reaches its dynamic limits. The functions of ESP are as follows: 1. Under certain road conditions and vehicle load conditions, the maximum adhesion force that the wheels can provide is a fixed value, meaning that in extreme situations, the longitudinal force and lateral force on the wheels have an inverse relationship. The electronic stability program can independently control the longitudinal braking force of each wheel, thereby influencing the lateral force and improving the vehicle's handling performance. 2. When the longitudinal force reaches its extreme value, the lateral force becomes zero, at which point the vehicle's lateral movement becomes uncontrolled, leading to skidding. In such cases, the vehicle may not be able to change lanes or turn as the driver intends. The electronic stability program can detect and prevent vehicle skidding. When it detects that the vehicle is about to lose control, it applies braking force to specific wheels to help the vehicle move in the direction desired by the driver. 3. During turns, one feasible control strategy is: when the vehicle shows a tendency to understeer, the system can apply braking force to the inner rear wheel of the turn. Since the longitudinal force on this wheel increases, the available lateral force decreases, generating a torque that assists in turning the vehicle. When there is a tendency to oversteer, the system can apply braking force to the outer front wheel of the turn. As the longitudinal force on this wheel increases, the available lateral force decreases, generating a torque that resists turning the vehicle. This ensures driving stability.
