Speed Controller TRIZ Cases

An independent safety controller checks navigation data and cuts drive power when errors appear, protecting unmanned vehicles on unreliable networks.

Interleaved motor winding boost charging lets high-voltage EV batteries use low-voltage DC piles without an external boost module.

An electric motor supplies immediate braking torque before hydraulic pressure builds, shortening autonomous emergency stopping distance.

When brake-circuit temperature rises during electrical braking, the cart lowers its speed limit to cut heat generation and avoid control failure.

Direction-based target difference checks detect unintended motor torque changes while avoiding unnecessary fail-safe actions that reduce drivability.

Voltage phase comparison lets the inverter controller detect resolver installation offset and trigger fail-safe motor control when abnormalities appear.

Integrated actuator arbitration keeps target motion vectors within a controllable range to reduce steering lag, roll, and pitch.

Calculating return-trip energy thresholds lets electric off-highway machines alert operators early and preserve enough charge to reach charging points.

Motor torque applied after stop completion offsets EV stop jerk using acceleration sensing, improving ride comfort without added NVH.

An electric machine adds wheel torque only below a speed threshold, improving starts on slippery roads without full-time AWD weight.

Wheel-specific torque balancing maintains vehicle stability on uneven-friction roads without brake intervention, reducing wear and energy loss.

Radial holding elements clamp the stator winding head to prevent slipping, absorb tolerances, and support precise automated assembly.

Pulse-based current and voltage sensing estimates inverter capacitor degradation early, enabling alarms and operating adjustments to extend service life.

Real-time telematics and AI models improve EV fleet energy decisions by speeding data integration and adapting to battery and route conditions.

A hybrid motor-engine rotor unit uses clutch control, regenerative braking, and shroud airflow to deliver fast thrust response with longer flight time.

Dynamic weighting blends cross-product and energy torque estimates to improve motor control accuracy and stability across speed ranges.

Real-time front and rear axle torque allocation uses slip-aware models to improve road grip, stability, and driving efficiency.

Passing current through a stationary EV motor warms the powertrain for cold starts, cutting losses, wear, and separate heater complexity.

Additional liftable wheels improve EV traction and braking while reducing cruising drag and recovering energy through regenerative braking.

A boost circuit recovers magnetic energy between motor pulses to shorten rise and fall times, improving average efficiency and EV range.

Prefiltered current-driven boundary cable signals overcome RL attenuation, improving robotic mower CDMA reception in complex work areas.

Switching between Y-connection and open-end winding modes raises torque efficiency, fuel efficiency, and stable operation during inverter faults.

Dynamic power allocation between axle and in-hub motors improves EV traction, efficiency, and packaging without sacrificing cabin space.

Three processors split torque calculation, motor control, and output checking to reduce vehicle MCU latency and support fault-safe operation.

Real-time deceleration feedback corrects brake notch patterns so trains maintain accurate stopping despite load and vehicle characteristic changes.

A modular wheel-integrated traction motor with onboard storage and sensors cuts ICE retrofit complexity while improving fuel efficiency and range.

When sensor health degrades, the controller switches speed and direction data sources to keep torque transfer and shifting control reliable.

A dual-loop controller moves fast torque actuation to the in-wheel motor, cutting communication lag and preventing wheel slip.

Two integrated circuits independently power and control motor switches, enabling fast fault handover and safe-state operation without supply collapse.

Perception data guides a machine learning controller to allocate vehicle power sources more efficiently across changing driving scenarios.

Automatic neutral braking torque control recaptures downhill energy, reduces service brake wear, and maintains vehicle stability.

Mounting the overvoltage suppression unit on the same cooler as the converter and inverter cuts wiring, inductance, size, and weight.

Motor reverse-rotation control during forward/reverse gear changes counters inertia and suppresses harsh vehicle shock.

Counter-torque from the electric motor eases parking gear release on slopes, cutting actuator load, power use, and torsion shock.

Motor torque and wheel acceleration are used to estimate vehicle pitch within 100-200 ms, enabling faster downhill speed control when sensors lag.

A high-cogging brushless motor paired with a 30:1 gear unit delivers self-braking torque while limiting oscillation on vehicle slopes.

Threshold-based switching between ISG and EFAD torque paths improves hybrid vehicle drivability, comfort, and safety.

Recorded human driving data and kinematic models are combined to generate adaptive, personalized autonomous vehicle control signals.

Terrain and battery-state estimation guide EV drivers on drivable distance and speed to avoid premature discharge or unnecessary stops.

Torque is increased only while steering returns to neutral, then reduced after crossover to avoid unwanted acceleration and driver discomfort.

Alternating forward and rearward motor torque creates recoiling force that helps electric-axle vehicles escape rough roads.

Unified wheel reference values let a central controller coordinate two motors for drive and steering while cutting computation and data transfer.

Real-time brake pad friction prediction using wheel speed, disc temperature, and hydraulic pressure improves torque accuracy and response.

Two battery-temperature torque maps curb heat rise on long uphill roads while preserving fuel economy and reducing charge current limits.

A split rotor position sensor on the motor end shield shortens the inverter connection path, cutting EMI, cable cost, and scaling issues.

A bridge-arm and DC/DC circuit drives the motor while charging traction and auxiliary batteries, cutting contactor count, loss, and cost.

A charging trailer adds electric assist torque during towing, improving traction on steep or off-road routes while recovering energy through regenerative braking.

Pedal-speed-based target acceleration correction smooths vehicle response, avoids zero-crossing jerk, and better matches driver intent.

Independent rectifier and inverter modules cut aircraft GPU maintenance time and cost while improving availability through quick replacement.

Roadway, sensor, and vehicle-state data are used to vary regenerative braking intensity for steadier deceleration, energy recovery, and control.