What does Hill Start Assist mean in a car?
1 Answers
Hill Start Assist is a function derived from the ESP system. It allows the vehicle to maintain braking for a few seconds after the driver's right foot leaves the brake pedal when starting on a slope without using the handbrake. This enables the driver to easily shift their foot from the brake pedal to the accelerator pedal, preventing rollback accidents and avoiding panic. Below is an introduction to Hill Start Assist: 1. How to use Hill Start Assist: Do not press the accelerator pedal when the gear lever is not in the P position, and the vehicle must remain stationary. The driver should not engage the handbrake (foot brake or electronic brake). When these conditions are met, the Hill Start Assist system will activate as the driver moves their foot from the brake pedal. 2. Working principle: When the vehicle is on a slope, the HAC system automatically maintains brake fluid pressure for 2-3 seconds when the driver moves their foot from the brake pedal to the accelerator pedal, preventing the vehicle from rolling back due to gravity and inertia. As the accelerator is pressed, the system gradually reduces braking force. Once HAC control ends, the vehicle moves forward steadily. If the accelerator is not pressed, HAC's automatic braking control will also end after 2-3 seconds.
