A multi-speed motor driven air conditioning compressor control method

A multi-speed motor-driven air-conditioning compressor, comprising a housing and a motor disposed within the housing, wherein: the motor is a multi-speed motor, said multi-speed motor is provided with at least two power supply terminals and with tap to adjust the speed control of the motor speed, further comprising a controller disposed outside the housing, and a temperature detecting means switching means, connected to the mains supply and the power supply terminal, and a temperature detecting means of said switch means and each control electrically connected to said switch means are electrically connected to each tap for the supply speed access to the corresponding tap where speed loop. The multi-speed motor-driven air conditioning compressor motor can avoid frequent restarts, and low noise, low power consumption and low cost. The invention also provides a control method for a multi-speed motor driven air conditioning compressor, the driving method does not require a dedicated controller, but still can be adjusted multi-speed motor.