| 摘要 |
A method and an apparatus for controlling an electric motor are provided to control a converting circuit by supplying an alternating current to the motor after a motor current value for receiving the maximum temperature of a condenser reaches the temperature above the value generating the necessary torque for starting the electric motor. A control device(11) controls an electric motor(10) for an electric compressor of an air conditioner mounted on a vehicle. The control device of the electric motor includes a converting device(12) and a control unit(13) to serve as the control unit of the converting device. The electric motor is three phase AC motor. The converting device is connected to a main battery(14) or a vehicles driving power source through a fuse. The converting device includes a converting circuit(16) having 6 converting elements. The converting element is an IGBT(Insulated Gate Bipolar Transistor). In the converting circuit, the first converting element, the third converting element, and the fifth converting element are connected to the second converting element, the fourth converting element, and the sixth converting element. |
