Electric Motor Control TRIZ Cases

A microcontroller-based lathe control system enables stepless speed regulation and torque adjustment for woodworking applications.

Dynamic torque adjustment reduces steering assistance while maintaining damping to prevent abrupt deflections during winding faults.

Regression model predicts rotor temperature from operating parameters, resolving inaccessibility of the air gap without direct sensors.

A thyristor startup device monitors DC current to detect gate pulse abnormalities in power conversion circuits.

A generator control module regulates inverter output using local sense leads for real-time feedback.

A motor control device estimates relative offset between steering and motor angles to maintain accurate multi-phase electric motor driving.

A motor drive connects a shunt resistor across the DC bus during power up to measure voltage and current amplitudes for early fault identification.

A dissipation circuit uses a threshold-controlled switch to discharge excess power from the DC bus.

A motor control apparatus uses a disturbance observer to estimate torque variations and a phase compensator to adjust speed signals.

Dynamic excitation control optimizes machine size by supplying higher currents within thermal limits, avoiding oversized designs.

A segmented power supply system uses a dedicated storage bank to deliver peak current while keeping the drive module inactive during idle periods.

Segmenting diodes into free-wheeling and suppressor units reduces power loss while protecting against overvoltage peaks during rapid brake application.

Bridge circuit switching patterns energize motor phases to measure current flow, detecting short circuits and interruptions without generating torque.

A motor overload protection method calculates real-time current integrals to dynamically adjust input power and prevent thermal damage.

Selective switching between wide-band-gap and narrow-band-gap semiconductors reduces manufacturing costs while minimizing electric power loss.

Delay circuit keeps incremental encoder powered after main switch off, capturing drive position during inertial rotation without absolute encoders.

Segmented winding architecture reduces passive component size while maintaining constant DC voltage across variable speeds.

A motor drive system uses an angle sensor switching unit to select active sensors based on real-time operational status.

A controller converts rotor speed to stress values for cumulative fatigue calculation.

A range switching device learns a motor reference position after controller reset by rotating to a determined limit.

Electric motor control apparatus calculates steady-state load from drive current to monitor belt tension without extra sensors.

Current measurement extracts from the power path to isolate faulty components, preventing battery discharge and ensuring reliable protection.

A vehicle rotary electric machine uses multi-phase windings and a rectifying device to switch between full-wave and neutral point rectification modes.

Shorting faulty inverter phases eliminates drag torque and power losses, enabling smaller drive channels.

A motor encoder superimposes sensor logical states onto pulse signals via duty ratio modulation to consolidate control board wiring.

A flux model estimates rotor temperature using electrical measurements, resolving sensor accuracy issues in fault-tolerant modes.

Automated amplifier selection device calculates motor load data to determine optimal spindle and servo amplifier combinations.

Dual inverter power conversion device manages drive current flow through independent switch circuits and parallel protection elements.

A control device limits electric motor current consumption based on rotational speed to optimize power usage in portable equipment.

A rotor temperature determination method combines reactive power and loss models for electric motors.

A power steering control device uses an acceleration sensor to detect dynamic vibrations for abnormality determination.

Adaptively modulated multi-state inverter isolates faulty bridge arms via bidirectional thyristors and fuses.

A modular converter design separates control and power elements into distinct housings to enable independent component replacement.

An actuator shaft uses an optical marker and sensor to detect the zero point position without mechanical stops.

An ultracapacitor circuit supplies DC power to a synchronous motor field winding during grid outages.

An information processing apparatus calculates rotational angles using iterative CORDIC algorithms to correct harmonic distortions in encoder signals.

Adjusting pulse durations in electrical machine power converters minimizes alternating current components.

A motor control circuit measures input voltage and temperature to set target driving speed values for a stepping motor.

A threshold detection system generates a pulse width modulated signal with a duty cycle proportional to DC link current.

Dynamic alarm level setting unit adjusts DC voltage thresholds based on inverter stoppage time and regenerated power.

Predicts induction machine load patterns via torque error analysis, adjusting flux current timing to reduce power loss during rapid load changes.

A motor control system adjusts voltage duty cycles to precisely manage rotor rotation and detect degradation conditions in medical devices.

A command generating device calculates an nth derivative shape signal to determine a position command that reaches the target without delay.

Check valves in the oil manifold divert lubricant to stator windings only when pressure exceeds thresholds, preventing rotor contact and shear losses.

A motor pair detection module monitors temperature variances between paired motors to identify potential failures before they occur.

A motor monitoring system determines drive health by measuring current and voltage-to-current phase shift values against defined thresholds.

Temperature detection adjusts DC motor braking timing via short-circuiting to maintain consistent rear margin length across varying thermal conditions.

A control device monitors voltage ratios and rotor position to initiate active short circuit transitions in electric machines.

Hold excitation of a stepping motor stabilizes switching frequency, reducing voltage ripples during rotor position detection without increasing substrate area.

A relay monitoring part compares voltages across an initial charging resistor to verify normal operation.