What is the Auto Start-Stop Function in Cars?
2 Answers
Auto Start-Stop is a system that automatically shuts off the engine when the vehicle comes to a temporary stop during driving and restarts it when it's time to move forward again. The working principle of the Start-Stop system: When the vehicle stops due to traffic congestion or at an intersection, and the driver presses the brake pedal and shifts to neutral, the Start-Stop system automatically checks: the engine is idling and not in gear; the wheel speed sensors of the anti-lock system show zero; the electronic battery sensor indicates there's enough energy for the next start. Once these three conditions are met, the engine automatically stops.
Auto Start-Stop is one of the most frequently discussed automotive technologies. Simply put, when you stop at a red light or are stuck in traffic, the engine automatically shuts off; as soon as you release the brake or lightly press the accelerator, it instantly restarts. The original design intention of this feature is to save fuel and reduce emissions. Having used vehicles from many brands, I find it particularly efficient in urban congested areas, saving approximately 10% on fuel costs. It also reduces idle pollution, contributing to air quality improvement. However, it's advisable to pay attention to battery status and the impact on air conditioning—for instance, the system may briefly pause the start-stop function to ensure comfort when cooling is needed on hot days. Overall, it's a practical feature that just requires getting used to.
