1. According to the driving method, it is divided into: independent type (a dedicated engine-driven compressor, large cooling capacity, stable operation, but high cost, large volume and weight, mostly used for large and medium-sized passenger cars) and non-independent type (air-conditioning compressor) Driven by the car engine, the cooling performance is greatly affected by the engine work, and the stability is poor, and it is mostly used in small passenger cars and cars).
2. According to the performance of air conditioning, it is divided into: single function type (the refrigeration, heating and ventilation systems are installed separately, operated independently, and do not interfere with each other, and are mostly used in large passenger cars and trucks) and the heating and cooling integrated type (refrigeration, heating and ventilation are shared) The blower and the air duct are controlled on the same control panel, and can be divided into a combined type in which the cold and warm air work separately and a mixed temperature adjustment type in which the cold and warm air can work simultaneously.
3. According to the control method, it is divided into: manual type (toggle the function keys on the control panel to control the temperature, wind speed and wind direction) and electro-pneumatic adjustment (using the vacuum control mechanism, when the air conditioning function key is selected, it can be scheduled Temperature and air volume are automatically controlled within the temperature).
4. According to the adjustment method, it is divided into: fully automatic adjustment (using the calculation and comparison circuit to control the work of the adjustment mechanism through the sensor signal and the pre-adjusted signal, and automatically adjust the temperature and air volume) and the fully automatic adjustment controlled by the microcomputer (taking the microcomputer as the control center to achieve Optimal control and regulation of all-round, multi-functional air environment in the car)
