Why is it necessary to turn off ESP when testing acceleration?
1 Answers
The reasons for turning off ESP during acceleration testing are as follows: 1. The primary purpose of ESP is to prevent understeer when the car needs to turn or oversteer when stability is required by applying braking force to individual wheels. When ESP intervenes, it performs intermittent braking on a single tire to prevent the car from losing control due to varying traction among the four tires. 2. To test 0-100 km/h acceleration, the car is floored at launch, causing the drive wheels to exceed the necessary friction for takeoff and spin momentarily. Once wheelspin occurs, ESP forcibly intervenes to limit it, which affects the vehicle's launch speed and consequently the 0-100 km/h acceleration time.