Electric Motor Control TRIZ Cases

A vehicle control device switches tasks between redundant systems to utilize normally operating parts of failed units.

Anti-stall circuit integrates proximity switches with motor control relays to detect remote conveyor stalling, preventing major failures at low cost.

A semiconductor device uses a control unit to stop driving switching elements with higher temperatures.

Drive circuit captures motor phase voltage profiles with transistors off to detect insulation faults, preventing electrical hazards from undetected leakage.

A motor control apparatus uses a compensation filter to generate a compensated position command based on mechanical system constants.

Capacitive grounding enables non-deionized water cooling while limiting ground currents below 30 A during faults.

A dual-inverter circuit drives brushless motors using insulated-gate bipolar transistors and field-effect transistors.

System detects inverter faults during operation by comparing digital count data against reference ranges, preventing cascading failures.

A safety program calculates substitute rotational speed from converter parameters to detect encoder errors without specialized hardware.

A power generation control device manages vehicle alternator output by intermittently adjusting field current supply.

A controller measures voltage differences across stator windings during pulse injection to determine rotor position and polarity.

An isolated gate driver integrates an auxiliary analog-to-digital converter to monitor DC Link voltage across a galvanic barrier.

Periodic alternating current aligns the rotor without generating harmful vibrations, enabling accurate stator resistance detection.

A motor control apparatus corrects command values to prevent output saturation during high frequency testing.

Segmented bidirectional switches isolate failed components in a three-level inverter, enabling continuous two-level operation without parallel redundancy.

A permanent magnet motor generates cyclic torque variations through asynchronous operation to loosen and remove debris.

Actuating inverter switches creates a short-circuit current path that heats the fuel cell unit, eliminating the need for separate heating elements.

A scanning mirror control system adjusts drive signals to maintain accurate scan trajectories.

Dual impedance short-circuit devices prevent over-voltages and over-currents during faults, enabling quick recovery without large-capacity converters.

Series-connected N-channel MOSFETs block reverse current from battery misconnection, preventing short-circuits and reducing apparatus size.

A sensor signal processing apparatus selects valid motor position signals to support steering control.

A motor control device detects current-carrying failures by monitoring phase voltage command values against specific duty limits.

A lidar control unit monitors electric motor current to suppress light emission during startup.

A power conversion device corrects switching element temperature using a dedicated control unit.

Periodic clock routing synchronizes data exchange between systems, reducing jitter-induced delays while maintaining voltage isolation via galvanic barriers.

Dual integrated modules in motor control centers share communication ports via bridge sockets and solenoid switches to maintain active standby operation.

A control unit monitors inverter phase current signals to detect switching element faults without waiting for signal convergence.

A DC geared motor drives an electrically adjustable antenna phase shifter under controller command.

A rotating electric machine control device calculates a limited voltage command value using a dynamic limit gain to stabilize the power supply current.

A semiconductor power module uses a switching unit to output identification signals for automatic recognition.

Miller plateau detection unit identifies gate voltage anomalies in motor drive circuits during active switching operations.

Dynamic power management limits motor output as brush wear accumulates, preventing vehicle immobilization without adding physical sensors.

Integrating a web server into the drive controller eliminates proprietary hardware requirements while enabling standard internet access for motor monitoring.

A control part generates PWM signals to drive a brushless motor while monitoring stator current and rotor speed for locked state detection.

Dynamic load mapping in moveable furniture systems prevents collisions and reduces energy consumption by adapting motor torque to actual track friction.

A pinch detection apparatus calculates drive load data and reference load data to identify obstruction events during motor operation.

A power converter control device calculates correction values to cancel axial vibration components in rotary electric machines.

An electric brake device estimates friction pad wear using the rotation angle of an electric motor.

An auxiliary control unit monitors motor operating states to detect deviations from target parameters.

A linear motor controller calculates a deceleration start position for a needle to reduce movement speed from a first to a second velocity.

A servo control device selects between sliding mode and PID algorithms based on position and velocity deviations to manage motor operation.

A motor control apparatus automatically adjusts or reverses rotation direction to match intended operation.

A motor drive control device detects hunting conditions by comparing coil current magnitude against thresholds alongside rotation position data.

Duplicated brake control circuits with series-connected switches monitor voltage and current abnormalities to prevent motor burnout during single failures.

A permanent magnet machine with a control coil regulates stator reactance to maintain constant DC bus potential.

A host controller generates a dynamic position control gain based on speed command ratios to stabilize motor operations.

Dynamic threshold adjustment resolves rotational variation from unsmoothed AC power, enabling accurate single-shot striking detection.

Dynamic PWM frequency adjustment lowers switch temperature and prevents overheating during transitions.

A synchronous machine controller switches to open-loop control to detect current sensor failures while the rotor spins.

Split-pin output drive technique charges and discharges the device node over different time lengths to suppress voltage spikes during fault shutdowns.