Car air-conditioning system is to achieve the air in the compartment refrigeration, heating, ventilation and air purification device. It can provide passengers with comfortable ride environment, reduce the fatigue strength of drivers and improve the safety of driving. Type: 1, according to the driving mode is divided into: independent (dedicated one engine-driven compressor, large refrigeration capacity, stable work, but high cost, large volume and weight, used for large and medium-sized passenger cars and non-independent (air conditioning compressor driven by the Car Engine, refrigeration performance by the engine parts work, stability, poor, more for small passenger cars auto parts). 2, according to the performance of the air-conditioning is divided into: a single functional (refrigeration, heating, ventilation system installation, separate operation, Non-interference, and more for large passenger cars and trucks) and warm and cold integrated (refrigeration, heating, ventilation, common blower and air duct, on the same control board control, Work can be divided into warm and cold wind separate work of the combined and warm wind can work at the same time mixed thermostat. The car uses the mixed thermostat type more.)
3, according to the control method is divided into: Fully automatic adjustment (using the calculation of the comparison circuit, through the sensor signal and the modulation signal control regulator work, automatic regulation of temperature and air volume) and computer-controlled automatic regulation (with microcomputer as the control center, to achieve a full range of car air environment, multi-functional optimal control and adjustment).