Electric Motor Control TRIZ Cases

Aluminum windings and alloy cores reduce motor controller weight by 23% while maintaining electromagnetic induction for noise attenuation.

A motor control device detects power supply line breaks by comparing phase voltages against dynamic thresholds.

A motor control apparatus detects disturbance vibration components and subtracts them from detection signals to generate precise torque instructions.

A control method applies voltage vectors to each phase of a permanent magnet synchronous machine to measure current responses and determine rotor position.

A control apparatus selects discrete switching patterns to induce counteracting harmonic currents in rotary machine windings.

A sensor detects fluid physical quantities and adjusts the servomotor rotation speed to stabilize machining accuracy against thermal drift.

A motor control method adjusts power supply duty cycles to manage current flow in electric power tools.

A motor drive compares power transferred to and from its DC bus to verify the electrical wiring configuration matches the operational settings.

A motor control device calculates target rotation speeds dynamically using arithmetic operations on position and speed parameters.

Staggered pulse width modulation controls parallel brake resistors to reduce intermediate circuit current ripple and capacitor strain during voltage regulation.

A servo control device switches between triple and quadruple loops to optimize transient response and steady-state stability.

An inverter device switches regenerative current between motor return and power supply using dual voltage detection for operational redundancy.

A control system adjusts an electrical machine's overcurrent threshold based on supply voltage and speed to optimize phase winding excitation.

An electric motor generates braking torque using hydraulic circuit data to assist vehicle deceleration.

A switching element connects the three-phase motor star point to a DC voltage terminal.

Selective switching element activation isolates faulty inverters to maintain motor operation continuity during steering system faults.

A motor driving circuit shares pins to output Hall sensor test signals, enabling internal component verification without adding external interface hardware.

Short-circuiting induction machine phases enables current sensor error detection without extra hardware.

A transient detection circuit isolates commutation current ripples to update rotor position values via pulse counting.

A motor control apparatus segments internal voltage supplies to isolate abnormal conditions within specific circuit sections.

Damping controller modulates field current to mitigate torsional oscillations in wound field synchronous generators.

A control unit calculates phase current errors to detect sensor failures in brushless AC motors.

An electronic position detection system replaces mechanical limit switches with a gear encoder and microcontroller to enable precise midway stopping.

A control method determines rotor position via stator current coupling terms and integration without physical sensors.

A controller monitors switched-mode power supply operating parameters against expected values to detect functional errors.

Wireless sensors measure motor shaft strain and temperature, transmitting alerts to prevent mechanical failures without external power.

Semiconductor switches short-circuit AC voltage phases to suppress electrical arcs in frequency changers.

A processor anticipates mechanical load changes to adjust output shaft speed setpoints proactively.

A stepping motor control apparatus switches driving frequencies to maintain synchronization stability during startup and operation.

A DC motor phase detection algorithm counts commutator pulses to determine shaft rotation and load distance without external sensors.

Dividing large output transistors into parallel units with dedicated pads enables precise drain voltage measurement.

A control device estimates rotor position by applying voltage vectors and measuring current values.

Inverter control device executes partial shutdown switching to suppress DC link voltage rise and reflux current during contactor open events.

A synchronized control system coordinates inverter voltage commands to maintain stable DC bus voltage.

A motor controller uses a d-q-0 transformer to manage phase currents for stable torque output.

Alternating passive rectification prevents DC bus voltage spikes and transient current demagnetization by cycling upper and lower IGBTs with extended dead time.

A sensorless control system determines rotor position by measuring stator current variations during internal combustion engine cranking.

A motor winding acts as an LCR circuit excited by voltage pulses to determine temperature from its resonant frequency.

A motor drive device adjusts zero-axis current using alternating voltage periods to manage open winding motors.

A sigma-delta modulator drives a signal switching circuit to route binary test signals through digital filters for diagnostic evaluation.

Detects open phase faults by measuring phase delays between current signals, eliminating complex hardware requirements and ensuring system safety.

A vehicle closure power actuator control system monitors motor current draw to detect impaired lift-assist mechanisms during operation.

A stator coil configuration arranges electrical conductors to form coils with a specific phase shift pattern relative to the reference coil.

Dynamic thresholds within each PWM period replace dual comparators, reducing torque loss and oscillation.

A steering control device computes dynamic current thresholds to detect wheel contact with obstacles.

A motor drive control apparatus manages power supply intervals to rotation detection units based on rotational speed.

Series-connected switches with separate control circuits enable periodic functional checks to resolve reliability and complexity trade-offs in drive systems.

A motor drive circuit uses a power loss brake control circuit to reduce rotation speed of an unpowered electric motor.

Motor angular position sensor opens power semiconductor switches at specific angles to prevent damage during shutdown.

A power consumption calculator detects anomalies in multi-phase windings by measuring current differences between drive units.