Speed Controller TRIZ Cases

Reconfigurable sub-modules with medium-frequency transformers let multi-system locomotives match different railway supplies with less weight and bulk.

Route horizons set a near-constant fuel cell output that keeps battery charge in range, cutting computation while protecting efficiency and battery life.

When EV range drops below a threshold, distance-based recalculation steadies low-SoC DTE and reduces operator stress.

A disturbance-based torque compensator adjusts EV regenerative braking before ABS activation, preserving wheel stability and energy recovery.

Throttle torque is blended with attitude-based torque to keep vehicle tilt within a safe angle threshold and reduce overturning risk.

Current-based switch cutoff prevents battery overcharging during fail-safe vehicle running when voltage detection becomes abnormal.

Integrated cold plates, thermal coins, and a reconfigurable radiator improve heat transfer and airflow in compact aircraft propulsion units.

A two-command EV startup adds a wake state, visual status cues, and propulsion lockout to prevent unintended movement and improve operator awareness.

A BEV pedal controller updates driver intent thresholds to smooth deceleration transitions, reduce disturbances, and improve energy recovery.

Disturbance torque estimation limits EV motor torque to keep wheel slip within range without relying on unstable road friction calculations.

Perpendicular capacitor placement and outward bus bar flanges align module terminals for easier joining, compact layout, and stable power conversion.

By predicting upcoming regenerative charge, the driveline creates torque and braking losses early to free battery capacity without brake resistors.

A dual-signal motor controller balances drive torque and regenerative braking to mimic clutch feel and improve rider control on electric motorcycles.

A pedal-position reference table holds steady vehicle speed with less accelerator input while supporting multiple EV driving modes.

Adjustable creep torque lets EV drivers choose familiar low-speed movement, while autohold prevents unintended rolling at stops.

Powertrain operating points are shifted during voice I/O to cut cabin noise, improving command recognition and audio guidance clarity.

Switching carrier pulse counts in synchronous PWM shifts harmonic frequencies away from inverter resonance to cut motor vibration and noise.

Magnetic force sensing replaces hard air-gap measurement to align linear motor secondary parts for accurate container vehicle branching.

Temporary motor output-limit release cuts four-wheel-drive engagement lag by speeding disconnector synchronization in electric vehicles.

Using existing mass and drive force data, this case shows how trailer electric drive control improves stability without extra sensors.

Dynamic DC/DC current control limits 48V mHEV battery heating during regenerative braking while preserving energy recovery and battery life.

Switchable winding turns let a dual-inverter motor drive maintain fuel efficiency at low output while preserving high torque in high-output sections.

Real-time torque transfer and reduction keep each drive axle within an optimal slip range, improving traction on uneven terrain.

A segmented superconducting and conductive track cuts low-speed magnetic drag, lowers power demand, and maintains fail-safe levitation.

By raising inverter current at low battery temperature, motor stator heat warms the battery through the cooling loop without extra heaters.

Feedforward torque slope control synchronizes motor and engine switching to suppress drive shaft vibration without slowing hybrid power path changes.

Semiconductor switches replace discrete contactor braking steps to cut arcing and resistor wear while enabling smoother regenerative braking.

Dynamic control of regenerative braking uses motion feedback to improve low-speed stopping, traction, and energy recapture in EVs.

A drive unit controller holds EV speed at zero during free-wheel towing by adjusting motor torque to prevent rolling on slopes.

Fusing AR headset visual-inertial odometry with personal mobility telemetry improves pose accuracy, obstacle awareness, and rider feedback.

Energy-loss maps guide EV torque, speed, and gear-ratio control to cut motor and CVT dissipation while extending driving range.

Virtual engine torque modeling lets an EV reproduce manual-transmission stall feel while using sensor-based control to avoid unsafe stalling.

Road-gradient sensing shifts battery charge targets uphill and downhill to cut fuel cell stop events and improve fuel efficiency.

Discontinuous PWM adapts pulse timing at a current threshold to switch parallel semiconductors accurately and balance converter load.

An insulating element, overlapping die pads, and sealing resin improve circuit isolation and insulation withstand voltage in compact semiconductor packages.

An integrated wheel speed sensor assembly measures wheel rotation within less than 1° to improve speed and direction control in vehicles.

Misalignment sensing and motor-generator control let a converter dolly cut wheel torque and apply regenerative braking to reduce forward jackknifing.

A launch-only LDFM with onboard energy storage lets the vehicle coast and restart without an active track along the full route.

By lowering the inner wheel torque ramp during steering return, this case suppresses slip and preserves EV drivability on low-friction roads.

A bidirectional converter and generator-mode motor hold DC link voltage so electromechanical brakes keep working during energy store faults.

Dynamic torque feedback limits EV bus current by motor speed and actual current, reducing overcurrent damage, heat risk, and insulation aging.

A dual-circuit EV motor controller switches between IGBT and wide-band-gap stages by load to cut light-load losses while keeping high current capacity.

Independent power control units use upper and lower limits from shared battery demand to balance multiple electric powertrains without central supervision.

Torque is redistributed between axle assemblies before sequential gear shifts, preventing temporary torque loss and improving vehicle response.

Pausing parking assist on accelerator or steering input preserves the planned path and helps prevent excessive approach to nearby objects.

Case recesses route wiring around the semiconductor, terminal, and capacitor units to shrink converter packaging and save vehicle mounting space.

Torque is redistributed across steerable and non-steerable axles to preserve steering and vehicle motion after a single-wheel drive failure.

Interlocking loop-wedge and hook-slot features stack vehicle power modules securely while preserving sealed coolant channel alignment.

Split acceleration and deceleration pedal maps emulate ICE-like resistive torque on gradients for more intuitive EV driving.

Rotor temperature is estimated from stator heat, refrigerant temperature, and speed to avoid magnet demagnetization without overlimiting low-speed torque.