Speed Controller TRIZ Cases

When HV battery failure cuts LV runtime, the traction motor generates LV power in emergency travel to keep loads running without a larger battery.

By reusing motor and generator windings for voltage conversion, this case boosts EV torque and regenerative recovery without extra DC-DC hardware.

Preloaded reference datasets let an EV auxiliary drive auto-configure to each vehicle, cutting setup time and adaptation cost.

When battery voltage drops, the inverter and motor winding raise bus capacitor voltage to sustain torque, improve endurance, and avoid DC-DC heat.

A threshold axle speed lets motor torque control end quickly after wheel slip clears, preserving acceleration, deceleration, and vehicle stability.

When actual energy use diverges from a trip plan, predictive overlays and safe-travel boundaries help operators assess battery risk faster.

Motor torque correction unloads the parking lock before shift release, cutting actuator force, size, and cost on slopes.

Dual motor power circuits generate phase-controlled pulse AC on the DC bus to heat EV batteries faster in cold conditions with less noise.

Thermal load comparison across e-bike drive components enables selective power adjustment to prevent overload without degrading riding dynamics.

Timed switching between front and rear motor regeneration and power modes reduces cabin vibration when a vehicle crosses a step.

Predictive cooling pump control balances component temperature and pump energy loss by optimizing pump output with the vehicle speed trajectory.

Direct sensing at rail drive motor terminals improves braking information accuracy and isolates power converter faults during braking.

By lowering converter switching speed under low air pressure and high system voltage, this case suppresses surge voltage while preserving vehicle output.

Distance-based torque feedback adjusts regenerative braking to stop smoothly on slopes without closing too much on a preceding vehicle.

Multi-core task deployment enables vehicle-end global energy management by balancing heavy prediction workloads with real-time control response.

Coaxial motor shafts and parallel gear trains shorten the drive path while amplifying torque differences for compact left-right wheel transmission.

By tracking work device revolution trends over time, this case smooths vehicle speed changes to reduce driver discomfort and keep work efficient.

Feedback torque control keeps the motor electrical angle near zero-torque alignment, reducing vibration when an electrified vehicle is stopped.

A copper foil connection piece replaces aluminum wires to cut parasitic inductance and equalize current and heat across parallel chips.

Current-based propulsion control cuts motor output under sustained overload, protecting batteries and components in rough-terrain electric machines.

Periodic excitation torque and slip response let electric vehicles estimate road friction without extra sensors, test braking, or added wear.

Switchable motor winding and bridge-arm connections raise bus voltage without a separate DC-DC converter, improving EV torque and efficiency.

Relative deformation sensing adjusts motor torque before gear re-contact, cutting EV transmission rattle, vibration, and noise.

A three-phase coupled inductor keeps motor neutral voltage constant, extending EV torque and speed at low battery charge while cutting losses and EMI.

A series-switch brake chopper handles either overhead line polarity and dissipates unused regenerative power to prevent regeneration cancellation.

GPS-based parking recognition triggers battery save mode sooner at known extended parking locations to preserve charge and reduce battery wear.

A shared coolant passage inside the gear case cools the inverter, step-down converter, and oil while reducing packaging space.

Interlocking loop-and-wedge features stack vehicle power modules securely while aligning coolant channels and preventing leakage.

Estimates surrounding vehicles’ remaining continuous travel from SOC or fuel data to choose a practical lead vehicle without shared route plans.

A shared-wall housing places the inverter and motor in adjacent compartments to shorten electrical links and add fluid cooling paths.

Thermal obstruction sensing helps a mobility scooter slow or stop around nearby people and objects without constant false interruptions in crowded spaces.

Simulated engine-speed display helps drivers distinguish motor mode from variable-speed mode and better understand vehicle behavior.

Steering angle and steering speed are used to detect turning state and rebalance front and rear torque to reduce jitter and improve stability.

A hydraulic link shifts excess power between separate vehicle electric machines to improve traction, reduce wheel slip, and use available power more fully.

Front and rear wheel torque are adjusted during simultaneous pedal input to prevent overheating while preserving stability and driver-requested torque.

Visual shift cues based on virtual engine speed and limit arrival time help EV drivers avoid power cutoff in manual shift mode.

Combines wheel rotation and ground-motion data to correct train speed during slip or idling, improving protection control accuracy.

EWMA-based runtime calculation improves residual battery assessment beyond SOC alone, helping materials handling vehicles respond to battery aging and capacity variation.

Module inverters charge batteries through motor windings, removing the on-board charger to cut cost and volume while enabling higher charging capacity.

A distance-based output limit uses battery charge, energy use, and remaining range to keep an electric vessel from running out of power.

A liquid coolant channel places the highest-heat power device near the inlet to improve motor controller cooling under added thermal load.

Periodic torque modulation tracks tooth stiffness changes over time to suppress gear transmission noise caused by wear and aging.

An inverter-motor AC loop heats series battery groups in cold conditions while limiting charge loss errors and preserving pack balance.

Temperature feedback and thermal modeling adjust BEV motor current limits to maintain torque while improving drive efficiency and reliability.

Motor restraining control limits output during low-speed shift and accelerator misoperation to prevent sudden vehicle or work-device movement.

A central controller matches autonomous work vehicles to suitable chargers and times, cutting queues and unnecessary travel at worksites.

Future energy use is estimated from travelable distance parameters instead of past average speed, improving displayed consumption rate accuracy.

Switching between off-chip stored codes and on-chip ZQ self-calibration cuts DRAM power and timing overhead while preserving signal integrity.

Detachable battery packs arranged within a narrow frame give a manned mower enough energy for continuous heavy-load operation without stopping.

Multiple samples per six-step inverter subperiod are rotated and averaged to suppress harmonic aliasing and improve current and torque estimation.