Electric compressor and control method therefor
First Claim
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1. A method for controlling an electric compressor having a motor for use in compressing a refrigerant, comprising:
- driving the motor with predetermined torque until a rotor of the motor rotates by a predetermined amount of rotation; and
driving the motor at a predetermined speed after the rotor rotates by the predetermined amount of rotation.
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Abstract
When an electric compressor is activated, initial current data is selected by a selector, and a motor is driven with the torque corresponding to the initial current data. When the motor is driven by a ½ turn, the selector selects current difference data. The current difference data corresponds to an instructed speed. After the switch of the selector, the motor is driven to rotate at the instructed speed.
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Citations
5 Claims
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1. A method for controlling an electric compressor having a motor for use in compressing a refrigerant, comprising:
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driving the motor with predetermined torque until a rotor of the motor rotates by a predetermined amount of rotation; and
driving the motor at a predetermined speed after the rotor rotates by the predetermined amount of rotation. - View Dependent Claims (2, 3)
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4. An electric compressor having a motor for use in compressing a refrigerant, comprising:
a controller including an estimation unit estimating or detecting an initial position of a rotor of the motor when the electric compressor is activated;
a torque mode control unit driving the motor with predetermined torque; and
a speed mode control unit driving the motor at a predetermined speed after the rotor is driven by a predetermined amount of rotation from the initial position with the instruction of the torque mode control unit. - View Dependent Claims (5)
Specification