Speed Controller TRIZ Cases
- Rollable Moving Device with Magnetic Docking and Omnidirectional Wheels
Segmented payload space and internal omnidirectional wheels expand versatility while maintaining a compact spherical structure.
- Compact Unit Integrating Inverter and Gears via Axial Overlap
An integrated unit positions an inverter to overlap a second gear, reducing overall volume while maintaining electrical isolation.
- Motor Control Device for Vehicle Drive Shaft Vibration Suppression
A motor control device channels excitation current to suppress drive shaft torsional vibration in vehicle propulsion systems.
- Diagnosing Motor Demagnetization via DC Current Comparison
A controller diagnoses irreversible demagnetization by comparing DC current values during electricity generation with pre-stored normal baselines.
- EV Powertrain Backlash Control via Torque Biasing
A vehicle controller maintains minimum torque demands in forward and reverse powertrains to eliminate mechanical backlash.
- Electric Drive Train Control via Selective Stator Coil Short-Circuiting
Selective coil short-circuiting prevents excessive terminal voltage and untimely braking during inverter failures.