What are the reasons for slow heating in electric vehicle air conditioning?
3 Answers
Car air conditioning heating slow reasons are as follows: Problems with the engine's cooling system or components of the heating control mechanism: If they are not functioning properly, you can check the temperature of the two inlet pipes of the heating small radiator. If both are sufficiently hot, it indicates no issue with the heating control mechanism. If both are cold or one is hot and the other is cold, there is a problem with the cooling system. Clogged air filter: This results in insufficient air volume blown into the car by the blower or an improper distribution of hot and cold air. Method for turning on the heating: First start the engine for preheating, rather than directly turning on the air conditioning blower. Wait until the water temperature gauge reaches the middle position before turning on the heating air conditioning. Set the air circulation to external circulation and also turn off the AC switch. After a few minutes, change the circulation mode to internal circulation. Car air conditioning can cool, heat, ventilate, and purify the air inside the cabin, providing a comfortable environment for passengers and reducing driver fatigue, thereby improving driving safety. It generally includes refrigeration devices, heating devices, and ventilation devices.
The slow heating of electric vehicle air conditioning can be attributed to several main reasons. First, the low-temperature environment affects performance. Electric vehicles primarily rely on heat pumps or PTC electric heaters for heating. When the external temperature drops below zero, the efficiency of the heat pump significantly decreases, resulting in slower warm air production. Second, insufficient battery preheating occurs during cold starts, as the battery itself requires warming up, which consumes time and energy, prolonging the heating wait time. Third, high system load, such as when headlights or seat heaters are turned on, can cause the air conditioning output to prioritize other functions. It is recommended to regularly update the software for optimization and preheat the vehicle via an app in low temperatures to improve the experience. In terms of design, some brands' heat pumps are less efficient in extreme weather, so choosing a high-efficiency model or installing an auxiliary heater can provide faster heating.
My previous experience with electric vehicles is that slow heating of the air conditioning often occurs when starting up in cold winter weather. It's cold outside, and the car interior is chilly. The air conditioning needs to first heat up the battery and coolant before it can output warm air, which may take a few extra minutes. Unlike fuel-powered cars that quickly utilize engine waste heat, pure electric systems in EVs rely more on their own heating elements. Sometimes, accumulated dust in the air conditioning filter can also block the air ducts, making the warm air come out even slower. It's advisable to develop the habit of using the mobile app to activate the preheating function before getting in the car, or parking in a garage to reduce the temperature difference. Also, pay attention to keeping the windows well-sealed to avoid heat loss. This can save time, especially for commuters, reducing the discomfort of being cold and affecting one's mood.
