How to use the car internal cycle function correctly? A comprehensive guide
With the frequent occurrence of high temperatures in summer and smog weather in winter, the internal circulation function of car owners has become the focus of attention. Correct use of internal circulation can not only improve the air quality in the car, but also significantly improve the efficiency of the air conditioner. This article will analyze in detail how to use and precautions for car cycles.
1. What is internal circulation in the car?
In-car circulation refers to the mode of closing the vehicle's external air entry channel and causing the vehicle's air to circulate and flow in the closed space. In contrast to the "outer circulation", the internal circulation can prevent outside pollutants, odors and extreme temperature air from entering the car.
| Loop mode | How it works | Applicable scenarios |
|---|---|---|
| Internal circulation | Circulate existing air in the car | Haze weather, tunnel driving, rapid cooling/heating |
| External circulation | Introduce fresh air outside the car | Good air quality, long-distance driving to prevent difficulties |
2. How to start the internal circulation of the car?
The position and logo of the inner loop buttons of different models may be slightly different, but the basic operating principles are similar:
| Car Type | Internal loop mark | Common locations |
|---|---|---|
| Economy car | Arrow rotating icon in the car | Central console air conditioning control area |
| Luxury car models | "RECIRC" | Touch screen air conditioner menu |
| SUV/MPV | Circulation arrow with interior profile | Steering wheel multifunction button zone |
Typical operation steps:
1. Start the vehicle engine
2. Turn on the air conditioning system
3. Press the internal loop button (the light is on to indicate that it is activated)
4. Adjust the temperature and air volume as needed
3. The best time to use the internal loop
Based on recent weather data and car owner feedback, the following situations are particularly suitable for internal circulation:
| Scene | benefit | Suggested duration |
|---|---|---|
| PM2.5 weather exceeds the standard | Reduce 90% of pollutants into | No more than 30 minutes |
| After the parking lot is exposed to the sun in summer | Refrigeration efficiency is increased by 40% | Turn on the air conditioner for 5-10 minutes |
| Driving in the tunnel | Avoid exhaust gas entering | Use the entire process |
| Sandstorm weather | Prevent dust from entering | Depends on the situation |
4. Things to note when using internal loops
1.Not suitable for long-term use:Continuous internal circulation will lead to an increase in carbon dioxide concentration, which can easily cause driving fatigue. It is recommended to switch to external circulation for 5 minutes every 30 minutes.
2.Use caution on rainy days:Internal circulation will make the car windows more likely to fog, and should be used in combination with the defog removal function on rainy days.
3.Special attention to new cars:The interior of the new car may release harmful substances, and external circulation should be used more frequently in the first 6 months.
4.Disabled when smoking:Using internal circulation while smoking will cause smoke to accumulate in the car, which is harmful to health.
5. Innovative Circulation System of Smart Cars
The smart electric vehicles launched in recent years have made many innovations in internal circulation functions:
| brand | Technical Features | Filtration efficiency |
|---|---|---|
| Tesla | Bioweapon Defense Mode | 99.97% |
| BYD | PM2.5 green clean system | 90% |
| NIO | Smart air purification | 95% |
6. FAQs
Q: Which one is more fuel-efficient, internal circulation or external circulation?
A: The internal circulation air conditioner has a small load, which can save about 10% of fuel in summer, but the actual difference is not big.
Q: Why do the inner loops sometimes automatically close?
A: This is the automatic protection function of the vehicle, which prevents excessive carbon dioxide concentration, which is a normal phenomenon.
Q: Can opening the internal circulation completely isolate the external odor?
A: It cannot be completely isolated, and some odor molecules may still enter through the gaps in the car door.
Correct use of the car's internal circulation function can not only improve driving comfort, but also ensure the air quality in the car. It is recommended that car owners flexibly switch internal and external circulations according to actual road conditions and weather conditions to enjoy a healthier and more comfortable driving experience.
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