The AVH Auto Hold System is an automatic braking function. After activating this function, for example, when stopping at a traffic light, it eliminates the need to pull the handbrake, simplifying operations by avoiding the use of manual or electronic handbrakes. For automatic transmission models, it also reduces the need for frequent shifting between D to N or D to P. The functions of the Auto Hold System include: Preventing rolling: When briefly stopping at a traffic light, the system automatically brakes the wheels after the vehicle comes to a complete stop to prevent rolling; Preventing backward sliding: When starting on an uphill slope, the system automatically brakes to prevent backward sliding, and releases the wheels to move forward once the vehicle starts; Automatic braking: Some models automatically brake the wheels when parking and locking the vehicle, eliminating the need to pull the handbrake. How the Auto Hold System works: When the vehicle is temporarily stopped and needs to restart within a short period, the parking is handled by the ESP-controlled braking system. The computer uses a series of sensors to measure the vehicle's levelness and wheel torque, determining any tendency for the vehicle to roll and applying an appropriate braking force to keep the vehicle stationary. This braking force is just enough to prevent movement without being too strong, ensuring a smooth start when the accelerator is pressed again. If the temporary stop exceeds a certain duration, the braking system switches to mechanical rear-wheel parking (activating the electronic handbrake) instead of the previous four-wheel hydraulic braking. When the vehicle is ready to move forward, the electronic system detects the accelerator pedal pressure and, for manual transmission models, the clutch pedal travel to determine whether to release the brake.
