What does the auto start-stop function mean?

2 Answers
OmarLee
07/29/25 4:40am
Auto start-stop function, also known as the engine auto start-stop system. Simply put, it automatically shuts off the engine when the vehicle comes to a temporary stop during driving (such as waiting at a red light). When it's time to move forward again, the system automatically restarts the engine. This function helps reduce emissions and lower fuel consumption during traffic light stops or short-term parking. 1. Working principle: By installing an enhanced motor with idle start-stop capability on a conventional engine, the system completely shuts off the engine when idle stop conditions are met. When the vehicle needs to move again, the idle start-stop motor system quickly responds to the driver's start command, rapidly restarting the engine with seamless transition, thereby significantly reducing fuel consumption and exhaust emissions. 2. Advantages: The auto start-stop function also helps standardize driving behavior to some extent - it won't activate unless seat belts are fastened. Conversely, if seat belts are unfastened after stopping, the engine won't restart even if the brake is released or the accelerator is pressed.
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McReagan
08/12/25 8:21am
The auto start-stop function, simply put, means the engine automatically shuts off when the car comes to a complete stop at a red light or in traffic. When you press the accelerator or release the brake, it instantly restarts. I think this design is quite clever because it uses sensors to monitor vehicle speed and status, avoiding unnecessary fuel consumption from idling. During normal driving, it can save approximately 5-10% in fuel consumption. For example, I tested it in urban driving conditions, and a full tank of gas could take me dozens of kilometers further. However, it does put some extra strain on the battery and starter, so it's important to pay extra attention during maintenance. Overall, this technology is very practical—not only does it help save money, but it also reduces exhaust emissions, making it environmentally friendly. I recommend trying this feature in new cars.
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