What is the function of active grille shutters?

[KylieLynn]

About the function of active grille shutters, the relevant introduction is as follows: 1. Maintain car temperature: When the car is just started, the engine temperature is relatively low, especially in cold winter. At this time, the active grille shutters will automatically close to prevent external air from entering the engine, filling the car interior with warm air, thereby allowing the engine to reach the optimal working temperature in the shortest time. When the engine temperature reaches a certain level, the grille shutters will open to prevent the engine from overheating, thus maintaining the optimal working temperature. 2. Reduce wind resistance and improve fuel economy: If the grille shutters remain open, it will increase the car's wind resistance, thereby increasing the driving burden and fuel consumption. The automatic grille shutters will open and close appropriately based on vehicle speed and engine temperature, reducing wind resistance and improving the car's stability. Additionally, with reduced burden and the engine maintaining optimal temperature, fuel can burn more completely, thereby reducing fuel consumption.