Speed Controller TRIZ Cases

A self-propelled charging station with onboard batteries, solar, and wind power cuts installation time and brings EV charging to remote sites.

Terrain-gradient and battery-charge sensing switches machine orientation to balance axle discharge and extend working range.

Independent torque control at each wheel maintains target speed on uneven or low-friction surfaces, improving stability and tight turning.

Coordinated front and rear motor torque with friction braking reduces vehicle body heave, even when suspension anti-squat angle is limited.

An intervening member and connector keep low- and high-voltage lines bundled while blocking stray current paths and reducing electromagnetic noise.

Compliance control switches docking from approach to gentle connector contact, preventing collision damage while keeping connections stable.

Electric trailer motors and coupling-force sensing cut towing load, recover braking energy, and improve EV range and wear.

Sensor-guided torque variation lets the drive wheel move longitudinally, reducing shock transfer while preserving traction and ride comfort.

A separate switch circuit cuts power to the motor drive path, preventing unintended cart movement when the motor controller malfunctions.

Rotor-position-based phase selection raises motor inductance during DC charging to cut current ripple, losses, heat, and capacitor size.

Brake torque is shifted from friction brakes to auxiliary brakes as temperature rises, maintaining downhill deceleration while reducing wear.

Precomputed axle and wheel torque maps let the ECU optimize real-time distribution for vehicle stability, lateral acceleration, and lower computing load.

Stopping inverter control and reading motor-driven voltage change enables simpler, more accurate power switch on-failure diagnosis.

Separate main and auxiliary windings keep auxiliary inverter power available during regenerative operation without exceeding converter current limits.

Dual charging paths let one motor controller handle high- and low-voltage inputs, using boost conversion for safer, more convenient battery charging.

Redundant pressure supply units and central valve control maintain wheel brake pressure for steering interventions despite faults in autonomous EV braking.

Mounting the inverter on the bogie shortens AC motor cables, cutting EMI while improving modular testing, maintenance, and installation.

Powered launch sections recharge onboard storage, letting vehicles coast and restart on passive track with less active infrastructure.

Predictive wheel torque estimation enables earlier motor torque reduction at vehicle launch, improving traction control accuracy and reducing wheel slip.

A split underfloor battery layout extends off-grid camper comfort power while preserving space, balancing weight, and supporting 12 V and 230 V loads.

Fuel burn data is converted into simulated battery use and charge levels, reducing BEM evaluation setup complexity and resource demand.

Driver pedal inputs and actual vehicle sound are combined to synthesize EV engine audio that restores acceleration and deceleration feedback.

Historical route graphs and battery feedback improve EV energy prediction accuracy without heavy onboard computing.

By biasing inverter switches into an intermediate state, EVs can heat the cabin or battery without separate resistive heaters.

Guideway flippers and septum-guided surfaces steer closely spaced vehicles through merges and diverges while LSM coils maintain precise motion control.

Stacked battery modules let an excavator match storage capacity to usage modes, cutting excess weight, energy waste, and operating cost.

Route-aware battery control creates charge headroom before steep descents to capture regenerative energy and reduce mechanical brake wear.

A resonance map lets vehicle motor control shift torque commands away from predicted square-wave resonance points to suppress noise.

Inclination-based virtual brake signals help electrified vehicles hold driver-set downhill speed with less pedal intervention and less control noise.

Direct-axis voltage feedback calibrates angular position sensor offset in permanent magnet motors, improving torque efficiency and control stability.

By measuring d,q currents and rotor speed during short-circuit deceleration, this case calibrates constant and speed-dependent resolver offsets.

A self-contained axle integrates motors, battery pack, and power electronics to electrify work vehicles without full chassis redesign.

Brake force is shifted among four EV brake discs by temperature feedback to prevent overheating, preserve friction, and extend disc life.

Filtered fuel cell cathode exhaust boosts a vehicle air compressor, cutting pneumatic power demand, filter count, weight, and maintenance.

A multi-path switch track uses sensors and guided engagement to route movers without stopping, improving independent cart throughput.

d-q currents and rotor deceleration data reveal constant and speed-dependent resolver offsets, improving electrical machine control accuracy.

Tactile brake pedal pulses show shifts between regenerative, retarder, and friction braking without requiring the driver to look away.

During hybrid gear changes, regenerative power from a second motor feeds the first motor to fill wheel torque gaps without added hardware.

By correcting motor speed with driveshaft torsion angle changes, this case improves EV wheel slip detection on varying road friction.

A centralized optimizer uses traffic and terrain predictions to update ECU control parameters, improving power split, fuel use, and emissions.

GPS-based reserve power monitoring alerts operators and limits machine functions so electric work machines can still reach charging stations.

Uses d-axis voltage control and q-axis current data to correct rotor pole position accurately even when Back-EMF blocks zero-current correction.

Alternating motor speed offsets jiggle clutch teeth into alignment, cutting spinning losses and improving AWD energy transfer.

Route-based control predicts future demand and powers down non-essential train components to cut auxiliary energy use without disrupting travel.

Independent lockstep monitoring and safety logic stop unsafe motor drive commands when control data, core status, or motor status turns abnormal.

Symmetric d-axis current control lets a multi-winding motor transfer charging power at zero torque with lower current magnitude and less loss.

When EV torque demand is near zero and speed is below base speed, inverter transistors stop switching to cut heat loss and extend driving range.

A staggered converter layout above the motor housing cuts vertical space, improves component packaging, and protects the communication connector.

Selective disconnector engagement adds a second motor for regenerative braking before hydraulic intervention rises, improving energy recovery and brake pad life.

A split converter case with horizontal DC-side parts and a downward AC busbar frees space above the motor and improves hybrid powertrain layout.