What is the purpose of an engine start-stop system?
2 Answers
Engine start-stop system automatically shuts off the engine when the vehicle comes to a temporary stop during driving, and restarts the engine when it's time to move forward again. This is a new technology that automatically controls engine start-stop, aiming to put the engine into sleep mode during brief stops to achieve fuel savings and emission reduction. The working principle of the start-stop system is: when the vehicle stops due to traffic congestion or at intersections, the driver depresses the brake pedal and shifts to neutral. At this point, 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 has sufficient energy for the next start. When these three conditions are met, the engine automatically stops. When the traffic light turns green, the driver depresses the clutch, and the engine can be quickly restarted.
I previously experienced the auto start-stop system while driving in the city, and found it mainly turns off the engine automatically when stopping, saving me a lot on fuel costs, especially with current high gas prices. In traffic jams or at red lights, the system shuts off the engine as soon as it detects the car has stopped, preventing unnecessary fuel consumption during idling, and quickly restarts when needed. I calculated it could save me thousands in fuel expenses annually. Plus, it's environmentally friendly, reducing exhaust emissions and improving air quality, particularly when using AC in summer without worrying about excessive fuel consumption. Initially, the frequent starts and stops might feel annoying, but you get used to it, and it also reduces noise, making the cabin quieter. Overall, it's a practical technology well-suited for urban commuters.
