A system includes: a motor having a stator and a rotor; and a pulse generation circuit coupled to the stator. The system also includes a motor controller coupled to the pulse generation circuit. The motor controller is configured to: determine inductance and resistance values of the motor based on timing parameters obtained during an initial position detection (IPD) interval; determine a rotor position based on the determined inductance and resistance values; and generate control signals for the pulse generation circuit based on the determined rotor position.

Disclosed are a motor control apparatus and a motor control method. Specifically, the motor control apparatus includes an inverter part configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter part in relation to driving of the motor, and the controller controls the inverter part to apply a first pattern voltage having the same phase to the motor and then apply a second pattern voltage having different phases to the motor.

Disclosed is a clothes treating apparatus and a control method thereof. Specifically, the clothes treating apparatus may include an inverter configured to convert a direct current (DC) input into an alternating current (AC) output and provide the AC output to the motor, and a controller configured to control the inverter in relation to driving of the motor.

An object of the invention is to provide a motor control device capable of realizing a redundancy while suppressing an increase in the number of parts and the number of connection signal lines.

The invention includes angle sensors 102 and 103 for detecting a rotation angle of a motor, MPU 107 for controlling the motor based on a stroke sensor 117 and receiving the detected value of the angle sensor 102, MPU 108 for controlling the motor based on the stroke sensor 117 and receiving the detected value of the angle sensor 103, and communication units 115 and 116 for transmitting and receiving signals between the MPUs 107 and 108. The MPU 107 includes an angle sensor failure detecting unit 114 for detecting a failure of the angle sensors 102 and 103, according to the detected value of the angle sensor 102, the detected value of the angle sensor 103 received through the communication unit 115, and a control angle of the motor created in response to the stroke sensor 117.

Disclosed is a motor control apparatus, a motor control system, and a motor control method that estimate a stator resistance and a rotor position for sensorless control of a motor.

Disclosed is a motor control apparatus and a motor control method to estimate a stator resistance of a motor for sensorless control of the motor.

An information related to the position of an actuator coupled to a cable which is coupled to a motor is received. A filter is used to provide an input to a motor controller coupled to the motor, to adjust torque on the motor such that a strength curve is implemented relative to the position of the actuator.

Provided are a motor rotation angle measurement device and method. The device may comprise: a signal conditioning circuit, configured to receive a three-phase output voltage of a motor and separately generate three square-wave signals; and a processor, configured to generate a six-multiplying frequency pulse whenever jumping of any one of the three square-wave signals, is detected in a rotation period of a motor, generate compensation pulses between the current six-multiplying frequency pulse and a next six-multiplying frequency pulse based on a time interval between the current six-multiplying frequency pulse and a previous six-multiplying frequency pulse and a preset compensation subdivision coefficient k, and accumulate the number of the compensation pulses, wherein the number of the compensation pulses is related to the rotation angle of the motor.

The present invention provides a method for detecting motor initial phase and phase sequence and a system for controlling a permanent-magnet synchronous motor. The method is applied to the system and comprises sequentially acquiring, through an encoder, first displacement data which register the encoder's reading when a rotor spins to a Q-axis, second displacement data which register the encoder's reading when the rotor spins from the Q-axis to a D-axis, third displacement data which register the encoder's reading when the rotor spins from the D-axis to a negative Q-axis and fourth displacement data which register the encoder's reading when the rotor spins from the negative Q-axis to the D-axis; obtaining an initial phase of the motor to be detected according to the second displacement data, the fourth displacement data and the encoder's CPR; and determining the phase sequence of the motor based on the first displacement data, the second displacement data and the encoder's CPR. That is to say, the method can not only automatically detect the initial phase of the rotor, but also the motor wiring phase sequence, and overcome the influence of friction force to improve the initial phase detection precision.

An information related to the position of an actuator coupled to a cable which is coupled to a motor is received. A filter is used to provide an input to a motor controller coupled to the motor, to adjust torque on the motor such that a strength curve is implemented relative to the position of the actuator.