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US 12,244,257 B2Granted
Motor control device and method therefor
AssigneeLG Innotek Co., Ltd.
InventorsJang Hoon Kim, Won Kyu Kim
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Abstract
A motor control method according to an embodiment of a present invention comprises the steps of: performing three-phase commutation in a first range section of a motor rotational speed in a brake mode of a motor; performing two-phase commutation in a second range section of the motor rotational speed performing one-phase commutation in a first range section of the motor rotational speed; and turning off commutation when the motor rotational speed is less than or equal to the first range section.
Claims20
A motor control method comprising the steps of:
- performing three-phase commutation in a first range section of a motor rotation speed in a brake mode of a motor;
- performing two-phase commutation in a second range section of the motor rotation speed;
- performing one-phase commutation in a third range section of the motor rotation speed;
- and
- turning off commutation when the motor rotation speed is less than or equal to the first range section.
2 more elements
A motor control device comprising:
- a three-phase bridge unit comprising three MOSFETs operating in different phases so that the motor operates in three-phase;
- and
- a control unit for controlling the three MOSFETs,
- wherein during a brake mode of a motor, the control unit performs three-phase commutation in a first range section of a motor rotation speed, performs two-phase commutation in a second range section of the motor rotation speed, performs one-phase commutation in a third range section of the motor rotation speed, and turns off commutation when the motor rotation speed is less than or equal to the third range section.
1 more element
Dependencies are inferred from the claim text.