What does it mean when the ESP system is activated?

[VanGavin]

ESP system activation refers to the computer's self-check. Below are specific details about the ESP system: 1. The Electronic Stability Program (ESP) is a type of traction control system. 2. Within seconds after startup, the computer performs a self-check, and all indicator lights, including the fault light, will illuminate. The self-check lasts only a few seconds before the lights turn off. If any light remains on, it is advisable to visit a 4S store for inspection. 3. The ESP system is essentially a traction control system. Unlike other traction control systems, ESP controls not only the drive wheels but also the non-drive wheels. For example, in rear-wheel-drive vehicles that often experience oversteer, where the rear wheels lose control and cause the car to fishtail, ESP will brake the outer front wheel to stabilize the vehicle. In cases of understeer, ESP will brake the inner rear wheel to correct the trajectory. 4. The ESP system is a crucial component in a vehicle, typically supporting the functions of ABS and ASR. It analyzes data from various sensors about the vehicle's driving state and issues corrective commands to ABS and ASR to help maintain dynamic balance. ESP ensures optimal stability under various conditions, particularly in situations of oversteer or understeer. The system generally requires the installation of steering sensors, wheel sensors, slip sensors, and lateral acceleration sensors. 5. In addition to utilizing the wheel speed sensors and hydraulic modulators from ABS and TCS, ESP also includes an integrated lateral acceleration sensor, yaw rate sensor, and steering angle sensor. These sensors are responsible for measuring the vehicle's rotational movement around its vertical axis and recording the driver's steering intentions. The wheel speed sensors measure the instantaneous speed of the wheels, while the steering angle sensor records the driver's steering input. The yaw rate sensor and lateral acceleration sensor measure the vehicle's rotational movement around its vertical axis and centrifugal forces.