Electric Motor Control TRIZ Cases

A measurement system detects back electromotive force zero crossings to determine angular position in continuously rotating motors.

A controller determines stator and rotor temperature from resistor electrical parameters in an electric machine.

A control module regulates BLDC motor switches to synchronize current draw with the AC input voltage waveform.

A multi-track encoder uses segmented light-receiving arrays to detect reflected optical signals from distinct slit patterns.

A brushless slotless DC motor uses digital sine-wave commutation to drive fluidic pumps with precise torque control.

Comparing actual and estimated temperature variations detects heat sink faults while reducing false alarms during motor acceleration.

A motor speed control circuit uses digital resistance ratios to determine precise pulse width modulation signals for variable rotational speeds.

Input monitoring detects secondary side faults without fuses, enabling faster identification than traditional methods.

A motor control circuit monitors MOSFET switching states via voltage readings to detect internal faults and ensure operational integrity.

A state observer module estimates motor velocity using PID feedback and lowpass filtering.

A monitoring system calculates duty cycles and actual voltages to detect faults in automotive inverters.

Drive control apparatus issues warnings when servo motor speed or torque exceeds narrow limits, preventing abrupt power cuts and reducing work interruptions.

A position detecting circuit normalizes magnetic field sensor outputs using correction parameters to stabilize signal sums.

A motor control system shifts current command phase to detect winding disconnections in locked states.

A motor drive control circuit detects driving current voltage to identify switch element states.

Sequential diagnosis execution reduces processing load while maintaining reliability across function circuits.

A malfunction detection circuit compares transistor drain-source voltage to a reference level to identify breakdown conditions in H-bridge motor drivers.

A friction compensation logic calculates torque by integrating column signals and applying dynamic gains to improve steering sensation.

Embedding a solid state controller inside the motor eliminates bulky external panels, reducing installation complexity while enhancing reliability.

Measuring coil inductance determines armature position, eliminating additional sensors that increase device complexity and reduce reliability.

A rotor eccentricity detection method processes air gap flux probe signals into normalized difference indicators for reliable monitoring.

A double-wound driving coil computes inductances using voltage and current measurements without real-time resistance sensing.

A motor drive circuit monitors peak voltage and current to prevent secondary damage.

Torque command correction calculator uses unequal intervals on rotational speed and torque axes to refine control settings.

Positional reference filter stabilizes motor control systems by suppressing low-frequency machinery vibrations.

A decoder blends content from temporally overlapped intra-coded and inter-coded frames using correlation metadata.

Periodic deactivation of phase windings enables accurate rotor position detection without external timing signals.

Processor computes sequence components using modified recursive least square initialization to isolate stator fault contributions from negative sequence voltage.

A transmission control system estimates initial ratios using motor position and load current data for precise ratio management.

Classifying single-shunt current measurements via duty cycle patterns resolves phase identification challenges in multi-phase motor control.

Segmented battery modules with DC-DC converters bypass faulty cells to maintain high voltage system reliability.

A pulse shift control mechanism adjusts PWM duty signal timings to stabilize phase determination in electrically driven power steering systems.

Controller uses motor protection curves to detect distress and activate lag prime movers before lead motors trip, reducing response time delays.

Segmented electrostatic devices protect high-side and low-side regions, reducing die area and cost compared to monolithic high-voltage protection.

Injecting high-frequency signals measures phase inductance to determine BLDC motor position at zero speed, eliminating acoustic noise from torque generation.

A PWM load driver measures voltage changes after switch-off to identify open circuit conditions.

Sort buffer stores sine cosine samples in lookup tables to compensate for offset and gain errors, improving angular position accuracy without high cost.

Direct conductor connections eliminate separate wiring inductance that causes resonance phenomena and backflow currents, suppressing overvoltage risks.

An adaptive pulse width modulation scheme dynamically switches between continuous and non-continuous modes to optimize voltage signals.

A simulator circuit maintains an adaptive model of subsea electrical systems to identify component status through concurrent hardware-in-the-loop testing.

A control device varies pulse width modulation frequency to adapt acoustic emissions.

Machine learning updates action-value functions based on motor phase deviations, minimizing uneven rotation caused by inductance changes.

Integrated relay and speed controller reduce driving torque during faults, increasing critical clearing time and maintaining generator synchronism.

A thermal capability manager adjusts active and reactive power references to control power converter temperatures in wind turbine generators.

A driver chip uses an over-temperature detection module to stop power supply when exceeding a threshold, allowing the component to cool down before restarting.

A motor driving device switches filter constants to detect rotor position and drive rotation.

Delaying regenerative braking until rotation speed falls below a threshold reduces recoil force on the transmission mechanism.

A motor control device generates current instructions to place a three-phase motor in a zero-torque position for diagnostic testing.

Segmented stator iron core isolates independent armature windings to prevent mutual inductance interference and ensure reliable steering control.