Speed Controller TRIZ Cases

Thermal sensing helps a mobility scooter distinguish real obstacles in close quarters and slow or stop only when needed to avoid collisions.

A staged EV shutoff regulates the motor toward no-load, then applies short-circuit braking to stop propulsion without motor damage.

Stator windings with at least 54 slots double as the boost inductor, cutting EV charging circuit complexity, size, and cost.

A low-side sensing resistor and PWM-based switching analysis track each parallel DC/DC converter current accurately without complex amplifiers.

Load sensing switches front and rear motive power sources to improve traction, handling, and efficiency in a multi-wheel drive hybrid vehicle.

A motorized trailer axle recovers wheel energy into onboard storage and assists towing maneuvers to extend EV range and reduce charging stops.

Temporary torque limiting clears transient motor conditions without changing vehicle mode, avoiding spurious fault alerts and interruptions.

Fusing IMU acceleration with wheel height sensing improves wheel normal force estimation under challenging driving conditions for better stability.

A filter simulation map limits front and rear regenerative braking by suspension pitch dynamics to reduce repeated wheel slip.

When one wheel controller loses communication, estimated cross-wheel power differences let the vehicle limit torque asymmetry and avoid hazardous yaw.

An overlapping inverter, motor, and heat-exchanger layout cuts unit length while preserving oil cooling in a compact housing.

A horizontal mount member integrates the power control unit with the motor case while lowering height, vibration resonance, and part interference.

Compares longitudinal force demand with drive and resistance forces to choose multi-drive gear combinations that improve EV torque use and efficiency.

Power-sharing detachable EV compartments keep loads moving when one unit runs low, avoiding tow delays and improving delivery reliability.

Restricting non-essential control functions during external charging or power feeding cuts switching power supply noise that can disturb other loads.

Radial holding elements secure a stator connection assembly on irregular winding heads, preventing slip and enabling automated assembly.

Look-ahead road grade and speed data guide torque split across multiple e-axles to cut powertrain losses and extend EV truck range.

Road-topography-based buffer reservation preserves battery range while keeping endurance braking available to prevent service brake overheating.

Vehicle stability signals reduce one-pedal deceleration when slip risk rises, improving predictable handling without driver intervention.

Sensor and map-based braking torque control boosts regenerative energy recovery while preserving reliable stopping under varying driver and road conditions.

Rail width in camera images is used as a geometric reference to estimate obstacle distance with lower onboard computation load.

High-speed links between brake and motor controllers enable rapid wheel torque control, regenerative braking, and more stable EV slip handling.

An engine-driven auxiliary motor supplies and stores electrical power at low speed, helping hybrid vehicles maintain electric balance and smoothness.

A rubber seal and metallic shield plate protect EV bus bar connections from moisture ingress and noise leakage at the inverter interface.

Two cascaded half-bridge drivers block simultaneous ON signals, protecting PFC transistors from bridge short circuits and high current.

PWM-controlled motor windings charge and discharge the power battery directly, removing the bi-directional DC/DC converter to cut cost and complexity.

Dynamic wheel brake distribution uses steering and longitudinal/lateral deceleration feedback to stabilize parallel and diagonal vehicle braking.

Software-derived virtual gear ratios adjust motor torque to match speed, load, and road conditions while avoiding added powertrain complexity.

Redundant converters share a casing, isolated busbars, and heat paths to improve vehicle DC-DC conversion reliability in less space.

Modal-coordinate torque control separates pitch and bounce over speed bumps, reducing vibration and improving ride comfort.

A control unit maps track sectors and battery convenience index to vary motor power, cutting lap times without a larger battery.

Trajectory-aware power control adjusts engine, motor, and braking settings to cut fuel use and capture more regenerative energy.

Gradual power-limit ramping smooths EV-to-series mode transitions in hybrid vehicles while preserving responsive driving force.

Front axle height sensing limits rear e-drive torque before a milled edge, reducing drivetrain impact loads and oversizing needs.

Alternating upper switch activation with all lower switches on discharges the inverter DC link within milliseconds without added hardware.

Software-defined virtual gears let EV drivers select boost or release torque behavior, recreating shift feel without a mechanical gearbox.

A nested aircraft power controller biases electric machine demand to keep generator and battery currents within safe limits.

A two-stage wireless control architecture lets different heavy-haul locomotives coordinate traction and braking for stable distributed power operation.

Rear-wheel steering input adjusts left and right front wheel speeds to cut turning speed, reduce centrifugal forces, and protect turf.

By limiting motor draw to the weakest active battery set, this case prevents overdraw, overheating, and battery degradation in electric marine propulsion.

Multiple sensor inputs let the controller ignore abnormal wind readings, improving bicycle component stability during sensor faults and changing conditions.

A power control unit detects low-speed high-torque motor states and cuts inverter power to protect marine propulsion from propeller obstruction.

Dual pedal travel and force signal channels let wheel end controllers keep brake force output when a sensor or central controller fails.

A shared lattice support frame carries both battery and suspended motor, cutting frame complexity while improving inspection and maintenance access.

Detachable EV compartments share charge and hand off loads autonomously when one vehicle runs low on power, avoiding delivery delays.

Guide portions and a positioning pin align the motor before fastening, preventing scratching and harness interference during assembly.

A DSP-CPLD dual-control gate drive hands over control during controller faults, preventing single-point failure and keeping the motor in safe operation.

Radial flaps with separate strain gauges on a spindle support ring improve external force and torque sensing accuracy for electric motor assistance.

Temperature-based front and rear motor torque allocation preserves traction on slippery uphill roads while preventing rear motor overheating.

A trained allowed-zone map lets a personal mobility vehicle predict path deviations and constrain actuator control to keep users safely on route.