Electric Motor Control TRIZ Cases

A motor driving circuit adjusts pulse width modulation duty cycles to manage bridge arm temperatures and reduce switching power loss.

Motor control device differentiates frictional resistance from entrapment using dynamic thresholds across acceleration, constant speed, and deceleration phases.

Independent high and low side power sources enable autonomous switch short-circuiting to prevent sudden vehicle braking during inverter malfunctions.

A motor control circuit uses a dedicated determination circuit to detect malfunctions independently from the main control unit.

A bonded semiconductor substrate and lid form an airtight cavity around the quartz crystal element to provide electromagnetic shielding.

A rotary electric machine control method uses an output-based conversion map to calculate electric control amounts from rotation speed and DC voltage.

Segmenting the battery into a dedicated explosion-proof container prevents gas ignition damage while maintaining device safety.

A motor control device adjusts carrier wave frequency to change phase difference between voltage command and carrier wave.

A controller synchronizes a synchronous generator with load-driving motors by adjusting exciter field current and prime mover speed.

Thermally conductive vias in a flex circuit move heat from a motor case to an outer surface sensor, resolving accuracy and complexity trade-offs.

A feed device detects response signal levels to identify operational faults in SCR systems without adding hardware.

A control apparatus detects winding currents to calculate phase offsets and compensation currents for abnormal windings.

A blower register subdivides current flow paths using segmented resistors and bypass switches to increase rotation speed levels.

A drive control portion maintains a motor relay in an on-state to discharge capacitor charge through the brushless motor windings.

A drive control assembly bypass module switches motor power between a variable frequency drive and an independent path.

Simplified angle estimation modules replace expensive DSPs to reduce system complexity while maintaining precise rotor position sensing.

Adjusts estimated disturbance gain in response to limited current output for servo motor control.

A control unit reads identification signals from a terminal unit to set motor drive parameters automatically.

A fault warning method estimates braking force and motor speed from armature current variations to determine electric parking brake status.

A motor control device employs a second-order infinite impulse response filter with dynamically changing coefficients to suppress mechanical vibrations.

Feedback control adjusts torque limits using measured DC-link voltage, maintaining accuracy without extra memory.

A drive unit detects coupled tool type via operating data to enable specific control modes.

Motor controller drives vibration through torque to generate vehicle sounds, eliminating external amplifiers and reducing weight.

An integrated contactor enclosure houses solid state relays and resistors to manage current distribution within electrified vehicle powertrains.

A device protection apparatus calculates temperature differences between a refrigerant and a heat-generation part to apply drive limitations.

A modulation operation-setting device adjusts inverter power supply parameters based on hysteresis loop characteristics to optimize excitation signals.

An electric braking circuit regulates the speed of a thrust reverser actuator using electromagnetic induction.

A sensing controller analyzes shunt resistor voltage to identify faulty components in 3-phase motor drives.

A permanent magnet motor adjusts magnetic flux via dual-coercivity magnets and a field generator to optimize performance across varying speeds.

A polyphase motor control device generates an evaluation signal from phase terminals to determine rotor angle without sensors.

A rotary electric machine inverter control device executes active short circuit or shut-down strategies based on rotational speed.

A soft starter uses a star-point circuit to detect defective switching elements via voltage drop measurements.

A motor control unit calculates regenerative energy to turn off semiconductor switches during safe operation.

A magnetic pole position detector compares current readings against a stored reference value to identify positional displacement.

A vehicle inverter protective device calculates maximum element temperature to determine a dynamic torque limit coefficient for thermal management.

Segmented detection circuits identify specific motor phase faults without external sensors, reducing system complexity.

Dynamic control of closure panel actuators reduces excessive current draw and extends component life under varying temperature and grade conditions.

Electronic control diverts back EMF to the vehicle battery while regulating motor heat through cycle counting and energy monitoring.

A decay lock loop system dynamically adjusts fast and slow current decay ratios to maintain precise electrical regulation.

Active region drive voltage increases switching loss in silicon carbide transistors, generating heat for vehicle air conditioning systems without adding weight.

A drive circuit adjusts current phase relative to rotor position based on magnet temperature.

A power conversion device calculates cable inductance to pinpoint interphase short circuit locations using low-speed current sensors.

A motor drive system calculates proportional and integral errors to generate inverter signals for fluid pumping applications.

Drive stop control circuit detects rotor rotation during free-run stop and applies braking to prevent power supply voltage rise from electromagnetic induction.

A seeder monitoring system uses fuzzy neural networks to optimize seeding shaft rotation speed in real time.

A fault diagnosis apparatus measures phase shift time to calculate inductance for detecting short circuits in permanent magnet motors.

Amplitude correction unit matches phase currents using bus-based detection to stabilize rotary machine control.

A sensor module detects ice cream hardness to control cooling, resolving the trade-off between ease of operation and device complexity.