Electric Motor Control TRIZ Cases
- Overvoltage Protection for Aircraft Electric Machines
Segmented H-bridge protection ceases current conduction in exciter stators to prevent downstream load damage.
- Backspin Management for Electric Submersible Pump Motors
A control system detects backspin voltage on electric submersible pump cables using sensor feedback to manage motor response.
- Steering Controller Torque Command Calculation for Noise Reduction
A steering controller calculates torque command values by summing converted steering-side and wheel-side operation amounts to drive the electric motor.
- Motor Driving Device Voltage Fluctuation Control
A motor driving device adjusts current limits based on detected power supply voltage fluctuations to maintain stable operation.
- Switched Reluctance Motor Control Without Position Sensors
A control system estimates angular position from phase currents to manage motor operation without physical sensors.
- Generator Loss-of-Field Protection Zones
Multi-zone protection system monitors synchronous generator operation using impedance and admittance planes to prevent damage during loss-of-field events.
- Motor Control Device Torque Command Limiting for Power Failure
A motor control device limits torque commands during power failures to optimize stopping distance.
- Motor Control Device Abnormality Alarm Mode
A motor control device transitions to a specific abnormality alarm mode when detecting high repeatability faults.
- Starter Motor Integrated Solid State Switching
Integrating a MOSFET within the starter motor housing replaces the mechanical solenoid, eliminating assembly complexity and preventing overheating.
- Brushless Motor Control via Space Vector Modulation
Space vector modulation applies zero vectors to phase windings during switch-off periods.
- Electric Motor Stall Detection via Voltage Difference
A sensor-less electric motor control system detects stall conditions by monitoring voltage differences during the open-loop phase.
- Motor Vehicle Circuit Voltage Control via Inversion
A vehicle circuit control method lowers consumer voltage to reduce current flow and then raises it at a controlled rate.
- Sensorless Oil-Pump Motor Drive Using Dynamic D-Axis Current
A sensorless drive apparatus for oil-pump motors converts multi-phase currents into d-q coordinates to calculate phase errors and adjust voltage commands.
- Redundant Power Converter Arm Failure Torque Control
Phase relays isolate failed inverter arms, distributing output across independent circuits to suppress torque fluctuations and maintain total motor power.
- Brushless Motor Control Circuit Overvoltage Protection
An electronic switch in the intermediate circuit clamps DC link voltage to prevent component damage and reduce costs by allowing lower-rated parts.
- Backup Controller for Motor Relay Failure Detection
A backup controller activates relays to stop unintended motor rotation when primary switching fails.