What Does Active Grille Shutter Mean?
2 Answers
Active grille shutters are similar to common window blinds, allowing the vehicle to automatically adjust their opening degree based on actual conditions. For example, when starting the car in cold winter, the grille shutters remain closed, helping the engine temperature rise faster and improving the vehicle's performance in winter. More details are as follows: 1. Achieving Quick Engine Warm-Up: After starting the vehicle, the active grille shutters automatically adjust their opening based on the engine temperature, enabling faster warm-up and allowing the engine to reach its optimal operating state in the shortest time. This is especially beneficial in cold winters, as quicker warm-up means passengers can enjoy warm air sooner. Temperature significantly affects engine operation, and the engine is most fuel-efficient in its optimal state. Therefore, speeding up the engine's warm-up indirectly improves fuel economy. 2. Grille Function: Additionally, if windows are opened too wide during high-speed driving, it increases wind resistance, burdening the vehicle. As the car's 'front gate,' if the grille remains wide open, it will increase wind resistance and fuel consumption. However, if the grille closes at the right time, it reduces the drag coefficient, enhancing vehicle stability and fuel efficiency.
Last time I visited an auto show, the salesperson gave me a detailed introduction to the active grille shutter, which is essentially the grid structure on the front face of the car that can open and close automatically based on conditions. When I'm driving, it senses temperature and speed changes: in cold weather or right after startup, the grille closes to block cold air from entering, allowing the engine to warm up quickly and the cabin heater to work faster. Once I hit the highway and reach higher speeds, it automatically opens to let airflow fully cool the engine and prevent overheating. This not only improves acceleration response but also helps me save fuel—I’ve noticed roughly a 5% reduction in annual fuel costs. It’s especially useful in winter or during long trips, making driving smarter and more comfortable. Just remember to check the grille slots periodically to prevent dust buildup from affecting its function.
