Under the influence of sustainable development strategy, the development of pure electric vehicles, hybrid electric vehicles and fuel electric vehicles belonging to clean energy category has become the focus of attention of all countries in the world. Traditional clutch air conditioning compressors cannot be used in new electric and fuel vehicles, so the development of new electric compressors has become an inevitable choice for complete electric vehicles. The layout of electric vehicle components is relatively tight and self-important. In order to achieve the goal of miniaturization and weight of electric compressor, the compressor design adopts an integrated semi-enclosed design scheme of DC brushless motor and scroll compressor. Since refrigerant and refrigeration oil flow through the motor, position sensors cannot be installed, so it is necessary to develop a positionless brushless DC motor electric compressor controller.

Main features: Working voltage range is DC280V-360V; compressor speed is 600- 10,000 rpm.

Technical level: It has filled the domestic gap and reached the international leading level.

Application prospects: Suitable for pure electric vehicles, hybrid electric vehicles and fuel vehicle air conditioning systems; the positionless brushless DC motor control method has technical versatility and is suitable for positionless brushless DC motor control in various industries.