What is the Auto Start-Stop Function?
2 Answers
Auto Start-Stop function refers to the engine auto start-stop system. Simply put, it is a system that automatically shuts off the engine when the vehicle comes to a temporary stop (such as waiting at a red light) and automatically restarts the engine when it's time to move forward again. The auto start-stop function in cars aims to reduce emissions and lower fuel consumption during traffic light stops or short-term parking. It achieves this by equipping traditional engines with an enhanced motor that has idle start-stop capability, allowing the engine to completely shut off when idle stop conditions are met. When the vehicle needs to move forward again, the idle start-stop motor system quickly responds to the driver's start command, rapidly restarting the engine with instantaneous engagement, thereby significantly reducing fuel consumption and exhaust emissions.
The auto start-stop feature is quite practical while driving. Simply put, when you stop at a red light or in traffic, the car automatically shuts off the engine to save fuel. As soon as you press the accelerator or release the brake, the engine immediately restarts and continues driving. As someone who commutes to work by car daily, I've found it helps me save a lot on fuel costs, especially in urban areas with heavy traffic—saving up to 5% in fuel consumption isn’t unrealistic. Initially, you might feel a bit uneasy about the sudden engine shut-off—it can be eerily quiet—but once you get used to it, it feels just like normal driving. Keep in mind that this feature relies on the battery and sensors, so older cars might experience minor issues. It’s advisable to have it checked during regular maintenance. Also, in hot weather, the air conditioning might be slightly affected since the engine stops, reducing heating efficiency, but overall, it’s still quite convenient.
