Electric Motor Control TRIZ Cases

Embedded signaling lines detect interturn faults without relying on temperature sensors, preventing false triggers from cooling variations.

A servo control apparatus calculates error correction amounts based on motor end movement during stopping to adjust torque commands.

A control unit detects hall sensor output signals to diagnose phase failures and generate virtual signals for the motor controller.

A rotating electric machine control device optimizes current supply phase differences between motor windings to reduce torque ripple and heat generation.

A rotating electric machine control device estimates shared component temperatures to calculate restricted current values.

A high-voltage DC monitoring system uses a shunt resistor to calculate ground isolation indexes and characterize trends for fault detection.

A processing circuitry determines a structure function of the power module by analyzing thermal resistance and capacitance changes to detect degradation.

Segmented sensing circuits feed a microcontroller that compares values against preset ranges to generate specific frequency warning signals.

A shunt resonant circuit enables zero-voltage switching in piezoelectric driving systems.

A gate driver delays pulse width modulation signals based on current magnitude to generate virtual damping.

A sensorless motor control system switches between voltage and current modes to optimize torque production.

A motor control device adjusts torque commands to maintain operation during power fluctuations.

Online hybrid thermal model estimates stator winding temperature using rotor resistance indicators, resolving inaccuracy from simplistic thermal assumptions.

An adaptive feed-forward algorithm calculates compensating signals to suppress periodic disturbances in railway traction systems.

A controller uses rotation angle sensors to reduce motor speed near the brake disk, preventing overshoot and brake shock while maintaining fast response.

A temperature control system regulates internal air in sealed variable frequency drives using combined heating and cooling mechanisms.

Analyzes field current and shaft voltage frequency spectra to identify synchronous machine faults.

A rotary electric machine control device implements immediate backup control upon abnormality detection to maintain steering system stability.

A power source system uses parasitic diodes in a driving apparatus to protect against reverse battery connections.

A motor control apparatus uses a switching unit to transition between bang-bang and feedback modes.

Flux linkage model fitting adapts control parameters to temperature variations, maximizing electromagnetic torque while reducing device complexity.

Self-service resistance elements detect temperature rises and reduce voltage, eliminating dedicated sensors to lower circuit complexity.

A processor extracts error signatures from output voltage signals to identify faulty current sensors.

Segmenting the voltage divider circuit enables immediate failure detection, preventing damage to power conversion elements.

Zero-sequence duty cycle components balance semiconductor temperatures, enabling higher stall current capability without thermal derating.

Variable overrun timing eliminates active power factor correction circuits and large DC link capacitors in brushless motor drives.

A vibrator driver adjusts alternating current phase differences to modify elliptical motion shapes.

Editing motor profiles customizes spa water circulation patterns while managing the complexity of dynamic parameter adjustments.

Opposing stator and rotor currents cancel magnetomotive forces, reducing armature reactions and enabling higher torque density.

Segmented current limit values in a motor controller maintain fixed output power when wind flow obstruction reduces motor current.

A control unit measures induced voltages on outer conductors to identify interrupted motor phases without additional sensors.

A motor drive circuit generates sinusoidal signals using a single Hall sensor to ensure smooth startup.

Forecasting temperature curves for different restart times reduces cooling periods and prevents thermal damage while maintaining operational efficiency.

A brushless motor uses a connection switching section to toggle stator coils between serial and parallel configurations.

An integrated motor and permanent magnet generator rotates the gas turbine rotor during cool-down to limit thermal distortion and vibration.

A motor drive apparatus uses dual current detection units to monitor shunt integrity and identify component faults.

A slotted clamp bar shifts sections to engage three electrical components, resolving thermal dissipation limits in motor controllers.

Pre-stored correction tables intercept abnormal phase pattern numbers from RAM garbling to prevent incorrect motor switching.

A supply control module converts DC input to an isolated AC bus that energizes gate driver modules via transformers.

A controller sets control characteristics to reach maximum motor speed within 50% of the trigger range.

A control unit combines digital and analog magnetic field sensors to precisely detect rotor position for accurate electrical commutation.

A linear Kalman filter estimates rotor angle and speed using q-axis current and voltage data.

A controller detects winding failures and redistributes drive currents to healthy phases.

A switching device uses a control unit and energy store to manage semiconductor and electromechanical switches for power supply.

Dynamic winding reconfiguration reduces back electromotive force during high-speed operation, eliminating conventional transmission components.

Cyclical value modulation distributes power losses evenly among switch branches, preventing overheating while maintaining full torque output.

Segmenting the interlock switch isolates detection circuits from motor voltage spikes during jam recovery, preventing false cover state readings.

A motor position sensor device uses a selection circuit to switch between primary and backup supply voltages for continuous operation.

A motor drive uses a charging circuit to detect earth faults without high-current contactors.

A motor control apparatus estimates rotor temperature through coil inductance measurement during excitation phases.