Electric Motor Control TRIZ Cases

A steering device controller sets reduced output limits for electric motors after fault detection to maintain assist torque.

A motor drive apparatus monitors main power supply voltage at the AC input side using a dedicated detection unit.

A motor drive controller monitors electrical and mechanical rotor speed differences to execute protective shutdown actions.

An external machine learning device determines optimal notch filter parameters to simplify circuit configuration and improve motor control reliability.

A detection device generates constant excitation current to acquire rotor position via torque-zero determination.

A motor control device uses dual memory storage and command parser feedback to verify external control signals.

A torsional angle control section calculates motor current commands based on target and actual angles to maintain precise steering torque.

Segmented drive modules distribute thermal losses across the stator, maintaining balanced operation during single-phase faults.

A differential detection circuit corrects signals using chopper control to calculate output current accurately.

A controller processor detects static eccentricity faults by analyzing secondary principle slot harmonic frequencies in induction motor current signals.

Segmenting stator windings allows independent current control, resolving the trade-off between cost-effectiveness and force production speed.

A thermal model estimates motor coil temperature using power consumption and PCB sensor data to enable dynamic current limiting.

Controller monitors signal phase differences to detect spindle detachment and prevent machining precision loss.

Segmented cooling paths and real-time current feedback prevent permanent magnet demagnetization while maintaining high stator heat dissipation.

A frequency identifying device applies Fourier conversion to detect cyclically changing high-band signal components and amplitudes within servo control systems.

Operates the hybrid electric motor in a low-efficiency zone to accelerate engine warming, eliminating the need for additional immersion heaters.

A conduction noise filtering circuit uses a detector and capacitor to offset common mode noise between series-connected coil parts.

A rollable display device uses a link driving unit to support flexible screen movement during rolling operations.

A motor control device uses two low-pass filters with different cutoff frequencies to process signals.

Signal processing circuit generates accelerating and decelerating forces based on position deviation thresholds to reduce mover settling time.

A motor driving system detects real rotating status to provide gradual acceleration commands for stable speed transitions.

A motor driving device uses parasitic diode orientation to absorb counter electromotive forces without extra control.

A current circulation unit manages counter electromotive force at the phase cut switch output terminals.

A control module calculates motor power using current and angular velocity data from integrated encoders.

A generating plant adjusts its electrical output using a feedback regulator to maintain transmission equipment within safe temperature limits.

A control device increases stator winding current to induce thermal changes for sensor diagnosis.

A current limiting reactor limits inrush current while maintaining motor rotation direction during power interruptions.

An AD conversion circuit converts analog ignition voltage to digital signals for the vehicle compressor control device.

A motor control device restores initial parameter values using resetting circuitry after temporary adjustments.

A torque-dependent high-frequency test signal determines electric machine rotor angle while minimizing torque ripple and acoustic disturbances.

A control unit determines switching timing using partial phase current detection to transition electric machines into a safe freewheeling state.

A motor controller adjusts PWM signal timing sequences to maintain consistent energization periods for phase current detection.

Dynamic gain scaling adjusts PID bandwidth by rotor flux frequency, stabilizing control during sensor-less transitions.

A motor control system detects abnormal rotation by turning on low side transistors to measure combined current through a single shunt resistor.