What is the Anti-Rollback Assist Function?
2 Answers
Anti-rollback assist function provides sufficient time (generally 2 seconds) for the driver to switch from the brake pedal to the accelerator pedal, preventing rollback accidents and solving many issues faced by novice drivers. Anti-rollback working principle: On slopes, when the driver releases the brake pedal, the ESP actively maintains required brake fluid pressure to generate braking force. As the driver moves their foot to the accelerator pedal, the ESP continues to maintain brake fluid pressure, sustaining braking force. As driving force gradually increases, the ESP progressively reduces brake fluid pressure. When driving force equals resistance value, brake pressure drops to zero, allowing smooth vehicle start. Anti-rollback design: The hill-start assist function is specifically designed to prevent rollback. It temporarily maintains vehicle immobility when the brake is released, effectively preventing rollback.
The anti-rollback assist feature is truly a helpful thing. I often use it when driving a manual transmission car in city traffic jams. When the car stops on a slope, the system automatically maintains braking force for a second or two after releasing the brake, preventing the car from rolling backward, giving me ample time to press the accelerator to start. This is especially reassuring when waiting at traffic lights on urban slopes, avoiding rear-ending others or being rear-ended. I also found it super friendly for beginners, reducing the pressure of starting. In fact, the principle is to monitor the slope through sensors and intelligently control the braking system. After using it for a long time, I feel it's like an invisible assistant while driving, enhancing safety and saving fuel. Many cars are equipped with it, so it's important to check when choosing a car. After driving for so many years, I feel like I'm missing a layer of protection without it.
