ELECTRIC COMPRESSOR OF AIR CONDITIONER FOR VEHICLE AND CONTROLLING METHOD OF THE SAME

摘要

PURPOSE: An electric compressor of an air conditioner for a vehicle and a control method thereof are provided to reduce noise by limiting the rotation number of the compressor in the idle and electric vehicle modes of a hybrid vehicle. CONSTITUTION: An electric compressor (10) of an air conditioner for a vehicle comprises a refrigerant compressing part (11), an electric motor (12), an inverter part (13), and a control part (14). The refrigerant compressing part compresses a refrigerant. The electric motor transfers rotational power to the refrigerant compressing part. The inverter part converts DC power inputted from a battery (15) into AC power and supplies the converted power to the electric motor. The control part receives the temperature change information of cooling water from a cooling water tank (16) and controls the output of the inverter part by confirming the on/off of an engine (20). [Reference numerals] (11) Refrigerant compressing part; (12) Electric motor; (13) Inverter part; (14) Control part; (15) Battery; (16) Cooling water tank; (20) Engine; (30) Generator; (40) Vehicle drive motor; (51) Cooling water temperature sensor