Electric compressor and control method therefor
AssigneeKabushiki Kaisha Toyota Jidoshokki
InventorsYasuharu Odachi, Kazuya Kimura, Shoichi Ieoka
Life of this patent
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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.
Claims5
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.
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.
Dependencies are inferred from the claim text.