Motor control module, motor control device, motor control system, and motor control method
AssigneeLG Electronics Inc.
InventorsHyojin Ko, Seungsuk Oh, Hyounguk Nam
Life of this patent
Estimating the term…
Abstract
The present specification relates to a motor control module, a motor control device, a motor control system, and a motor control method, and the purpose of the present specification is to provide a motor control module, a motor control device, a motor control system, and a motor control method, which control driving current applied to a motor according to an operating condition of a variable magnetic motor so as to enable magnetic force in the motor to be controlled.
Claims19
A motor control module for controlling a variable magnetic motor, the motor control module comprising:
- a current control unit configured to generate a current command to control a driving current applied to the motor according to an operating state of the motor;
- and
- a signal generation unit configured to generate a control signal to be sent to an inverter to apply a current to the motor according to the current command,
- wherein the current control unit is configured to generate the current command to apply an increasing or decreasing current to the motor for increasing or decreasing a magnetic flux in the motor at a predetermined application time point and is configured to control a magnetic force in the motor, and
- wherein the current control unit is configured to:
- estimate a speed of the motor and the magnetic flux in the motor;
- determine whether to increase or decrease the magnetic force in the motor based on the estimation of the speed and magnetic flux of the motor;
- and
- generate the current command according to a result of the determination of whether to increase or decrease the magnetic force in the motor.
A motor control device for controlling a variable magnetic motor, the motor control device comprising:
- an inverter configured to apply a driving current to the motor;
- and
- a control unit configured to control the inverter unit to control the driving current,
- wherein the control unit is configured to control a magnetic force in the motor by controlling the driving current such that an increasing or decreasing current for increasing or decreasing a magnetic flux in the motor is applied to the motor at a predetermined application time point,
- wherein the control unit is configured to generate the current command to apply the increasing or decreasing current to the motor at the application time point, and
- wherein the control unit is configured to generate the current command to apply the increasing or decreasing current to the motor according to a predetermined application condition.
A motor control method for controlling a variable magnetic motor, the motor control method comprising the steps of:
- estimating a speed of the motor and a magnetic flux in the motor while the motor is in operation;
- comparing the magnetic flux in the motor to a predetermined magnetic flux reference and determining whether to increase or decrease the magnetic force in the motor when the speed of the motor reaches a predetermined speed reference;
- and
- controlling a driving current applied to the motor such that the magnetic force in the motor is increased or decreased depending on a result of the determination,
- wherein the controlling of the driving current applied to the motor comprises controlling the driving current applied at a predetermined application time point and according to a predetermined application condition to increase or decrease the magnetic flux in the motor.
Dependencies are inferred from the claim text.