Electronic Commutation Motor Control TRIZ Cases
- Inverter Stabilizing Compensation for Motor Control
A stabilizing compensation calculation unit adjusts d-axis voltage commands to suppress current ripple in permanent magnet motors.
- Flux Space Vector Model Correction for Sensorless Motor Control
Feedback corrects integration drift in sensorless motor control, maintaining model accuracy across varying speeds.
- Step Motor Driving Device Phase Detection Power Reduction
A step motor driving device uses a phase detecting circuit to determine rotor position via counter-electromotive current.
- Stepping Motor Control Device Back-EMF Torque Suppression
A stepping motor control device dynamically adjusts power supply voltage based on rotation speed to maintain drive capability.
- Electric Motor Current Regulation via Model-Based Validation
Model-based validation compares sensor measurements against predicted ranges to prevent destructive current levels during sensor failures.
- Rotating Machine Control Device for Rotor Position Estimation
A control device corrects d-axis and q-axis current commands to enhance rotor position estimation precision.
- Synchronous Machine Internal Temperature Estimation via State Observers
State observers estimate coil resistance and magnetic flux to determine internal temperatures in synchronous electrical machines.
- AC Motor Control with Single Current Sensor and Interpolation
A motor control circuit estimates three-phase currents using one sensor and Clarke-Park transformations to stabilize power supply.
- Buried Magnet Motor Deadbeat Control for Voltage Response
Deadbeat control calculates voltage vectors to reach setpoints, eliminating feedback delays during line voltage variations.
- Dual Permanent Magnet Rotor for Variable-Speed Electrical Machine
AlNiCo and ferrite magnets in the rotor enable reversible flux adjustment, resolving torque output versus induced voltage trade-offs.
- Sensorless PMSM Drive with LC Filter Using Adaptive Observer
An adaptive full-order observer reconstructs motor terminal quantities from inverter measurements, resolving filter dynamics that complicate sensorless control.
- Axial Distance Adjustment for Electric Machine Sensor Accuracy
A sensor device captures axial distance between a signal generator and sensor to correct angle estimation errors in electric machines.
- Motor Controller Voltage Limit Circle Torque Optimization
A motor controller calculates q-axis current limits using voltage and current limit circles to manage inverter constraints.
- Inverter Control Phase Lead Compensation
An inverter control device calculates phase lead based on motor rotation speed to advance voltage command values.
- Motor Current Command Learning via Reinforcement
Reinforcement learning adjusts d-axis and q-axis current commands based on observed states, overcoming inductance changes and magnetic saturation.
- Synchronous Motor Control Device Speed Reference Calculation
A motor control device calculates speed reference values to generate q-axis and d-axis current commands for synchronous motors.
- D'Q' Reference Frame for Independent Motor Torque and Flux Control
A D'Q' rotating reference frame decouples stator currents to enable independent torque and flux control in permanent magnet motors.
- Multiple-Winding Motor Drive Control for Harmonic Reduction
A drive control apparatus generates modulation rate and phase commands to equalize currents across multiple windings in a three-phase motor.
- Electric Motor Noise Reduction via Flux Harmonic Control
Dynamic adjustment of converter parameters minimizes radial force waves, reducing motor noise without increasing inverter losses.
- Current Sampling Gain and Delay Compensation via Dummy Load
Replaces motor loads with star-connected inductors to decouple gain and delay compensation, reducing power costs while maintaining measurement precision.
- Motor Controller Phase Switching Detection
A motor controller uses dual-frequency pulse width modulation to stabilize floating phase pin voltage for accurate back electromotive force detection.
- Current Sensor Failure Detection in Electric Power Steering
A current sensor failure detection method calculates estimated phase and magnitude of required motor current based on torque requirements.
- Motor Driver IC Integrating Dead Time Generation
A motor driver IC integrates dead time generation within a single package to shorten signal paths and prevent noise-induced short circuits.
- Synchronous Motor Speed Command Correction for Torque Ripple
A speed command correction device adjusts rotational speed using extracted torque components to reduce vibration.
- AC Motor Inertia Calculation via Delay Compensation
A control device calculates moment of inertia using estimated speed and corrected output torque for AC rotating machines.
- Voice Coil Motor Position Control via Voltage Frequency Conversion
A voice coil motor control circuit converts extracted AC voltage into a frequency signal to determine positional information without external sensors.
- Haptic Actuator Drive Signal Amplitude Control
A controller adjusts haptic actuator drive signal amplitude by monitoring response signal gradients.
- Sensorless Metering Pump Control via Motor Electrical Parameters
A metering pump control method calculates displacement position from motor voltage and current signals without physical sensors.
- Sensorless Induction Motor Speed Measurement via Back-EMF
Switching off stator power captures decaying back-EMF voltages to determine rotor speed, eliminating complex signal injection and reducing harmonic generation.
- AC Motor Current Estimation for Steep Torque Transients
An electric current estimation unit calculates d/q axis values using orthogonal correction to enhance motor responsiveness.