What is the purpose of an active grille shutter?

[NevaehAnn]

The function of an active grille shutter is to achieve shorter warm-up time and lower drag coefficient. Below are the advantages of an active grille shutter: 1. Shorter warm-up time: Regarding warm-up, there should be a consensus that a vehicle can only reach its optimal state after the coolant reaches the appropriate operating temperature. This is where the advantage of an active grille shutter comes into play: after starting the vehicle, the active grille shutter automatically adjusts its opening based on the engine temperature, thereby achieving faster warm-up. 2. Lower drag coefficient: If the windows are opened too wide, strong wind resistance can become a burden on the vehicle. As the "window" of the engine compartment, the active grille shutter, when closed at the right time (for example, in the ATS-L, when the speed exceeds 60km/h, the onboard computer automatically monitors the engine temperature and closes the grille when no additional air cooling is needed), can also provide the vehicle with a lower drag coefficient, thereby improving vehicle stability and fuel economy.