What does ESP stand for?
1 Answers
ESP is the abbreviation for Electronic Stability Program, which is an extension of the functions of the Anti-lock Braking System (ABS) and Traction Control System (TCS) in vehicles. It is also part of the vehicle's active safety system. ESP primarily controls the longitudinal and lateral stability of the vehicle, ensuring it moves according to the driver's intentions. ESP mainly consists of three major components: sensors, actuators, and an electronic control unit. The sensors include wheel speed sensors, steering angle sensors, lateral acceleration sensors, yaw rate sensors, and brake master cylinder pressure sensors. The actuators include traditional braking systems and hydraulic modulators. The electronic control unit works in conjunction with the engine management system to intervene and adjust the engine's power output. ESP collaborates with the engine ECU. When the drive wheels slip, the system compares the rotational speeds of all wheels to determine if the drive wheels are slipping. It then automatically reduces the throttle intake, lowers the engine speed, and decreases power output while applying braking to the slipping drive wheels. If the ESP warning light is illuminated, the anti-skid function is disabled, and immediate repair is necessary. Skidding can easily lead to loss of vehicle control, which significantly increases the risk of collisions, resulting in injuries and property damage.
