What is the function of automatic engine shutdown when braking?

[MacHarrison]

Automatic engine shutdown when braking is the engine auto start-stop function. The engine auto start-stop function 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. Definition of auto start-stop function: 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. The auto start-stop function can reduce emissions and lower fuel consumption when waiting at traffic lights or during short stops. Working principle of auto start-stop function: By installing an enhanced motor with idle start-stop capability on a traditional engine, the engine completely shuts off when the vehicle meets idle stop conditions. When the vehicle needs to start moving again, the idle start-stop motor system quickly responds to the driver's start command, rapidly restarting the engine with instantaneous connection, thereby significantly reducing fuel consumption and exhaust emissions.

[BarrettAnn]

When my car has this feature of automatically shutting off the engine when braking, I believe it's the so-called auto start-stop system. I've been driving this car in the city for over three years, and every time I stop at a traffic jam or red light by pressing the brake, the engine automatically turns off, saving fuel and being eco-friendly. It starts almost instantly when releasing the brake, without affecting acceleration. This design reduces idle waste, and I've calculated that it saves me hundreds of dollars in fuel costs annually. It works best in urban areas, with little effect on highways; the startup is quick, but you need a better battery, or it won't last. Some complain about the startup noise being annoying, but I've gotten used to it. In summer, with the AC on, the engine takes longer to cool down after shutting off, but you can manually turn the system off. Overall, it's very helpful in saving resources and reducing emissions, can extend engine life, and is a smart design.

[Jessica]

I'm quite familiar with this little detail about cars - the auto start-stop feature. When you brake to a stop, the engine shuts off, primarily to save energy and reduce fuel consumption, avoiding unnecessary idling. The system uses sensors to detect when the vehicle speed is zero and stops the engine, with electronic controls ensuring a safe restart. The benefits are obvious: it saves over 10% fuel in city driving and reduces CO2 emissions globally with its widespread adoption; enhanced batteries are used to withstand frequent start-up wear. I've tested several models, and the restart is smooth without any jerking, but it's not suitable for older vehicles; hot weather can easily affect air conditioning efficiency, so remember to set the option to turn it off. During daily commutes, it silently helps, being both eco-friendly and economical, a smart embodiment of modern design.

[MilaAnn]

This feature is the auto start-stop system, which saves energy by shutting off the engine when you brake to a stop. When I encounter a red light while driving, it activates, stopping the engine to save fuel; releasing the brake immediately restarts it, so there's no worry about the engine stalling. It's suitable for city driving, not highways, and can save a significant amount of money. Some people find the restart noise annoying, but it can be manually turned off, with no safety concerns. It's standard in modern cars, and you'll get used to it.