APPARATUS AND METHOD FOR CONTROLLING ELECTRIC COMPRESSOR

摘要

A control apparatus for an electric compressor can actuate an electric compressor more quickly through a simpler and inexpensive arrangement while achieving reduction in weight, cost and assembling time of the electric compressor. When there is a pressure difference between the inlet side and the outlet side of the compressor main body when the motor of an electric compressor is actuated, the motor is actuated at a lower number of revolutions as compared with normal mode. Consequently, even if the refrigerant is liquefied on the outlet side of the compressor main body, for example, the motor can be actuated by performing such an operation as the liquefied refrigerant is pushed out. In such a case, number of revolutions of the motor is increased stepwise or linearly so that a required number of revolutions is reached as early as possible while surely performing actuation.