Speed Controller TRIZ Cases

A bracketed controller mount with a gap and housing-based attachment cuts motor heat transfer while keeping EV drive-unit wiring short.

Water-guiding cover features and overlapping inclined ribs divert rain and splash away from the seal member to improve case sealing.

Periodic switching in a shared converter leg spreads current between switch elements, cutting heat buildup in dual brake motor control.

Rotating the axle electric machine disperses cold, viscous lubricant away from the clutch so engagement can occur without added heating hardware.

Selectable endurance and qualify modes manage traction power to balance race-long consistency with temporary peak output.

Dynamic EM efficiency control matches regenerative braking energy to ESS absorption limits, extending heavy-duty vehicle braking endurance.

Dynamic switching between FOC and DTC balances fast axle torque response with cruising efficiency while reducing powertrain stress and service costs.

One inverter feeds the stator and rotor, removing the DC-DC converter to cut motor component count, cost, and architecture complexity.

A rotor support member with flange, annular wall, and bearings creates clutch plate space while keeping rotor alignment accurate.

A reverse twist-grip range switches an electric scooter into recuperation mode, recovering braking energy to extend range and reduce brake wear.

Dynamic switching between FOC and DTC balances torque response and steady-state efficiency while reducing powertrain stress and fuel use.

Hitch force feedback in three directions lets active suspension and wheel torque control reduce trailer sway and improve cornering stability.

Differential axle mass is used to add electric deceleration torque during braking, equalizing wheel lock behavior and reducing tire wear.

A bypass diode and separate DC supply cut switch count, lowering switching and steady losses in moving-body power conversion.

Locking hooks, locking members, and unlocking members secure AGV batteries while enabling fast removal for large-batch battery replacement.

A bendable rear-leg bracket lets a flat vehicle inverter tilt between seats during side impact, reducing seat load and damage risk.

Redundant motor and transmission control lines trigger a neutral shift to prevent excessive deceleration during drivetrain faults.

Path-based torque control lowers motor temperature before climbs, preserving fuel efficiency and gradient performance in hybrid vehicles.

A server-set target state of charge preserves BEV regenerative braking capacity while preventing battery overload after external charging.

A hierarchical controller uses fuzzy logic, efficiency maps, and tire slip feedback to cut energy use while preserving EV handling stability.

When low-speed, low-load work is detected, transmission control cuts unnecessary motor power to save battery energy and preserve travel range.

A cooling oil passage placed between the EV motor and power control unit limits heat transfer, suppresses demagnetization risk, and saves space.

Target torque thresholds selectively permit skip shifts in EV range control, preserving manual-shift feel while limiting wheel slip.

By estimating center of gravity from wheel thrust, the controller adapts drive wheel speeds to keep loaded vehicles balanced and on path.

When regenerative braking fills the battery, EDAM activates dissipators to burn excess energy and keep vehicle brakes and motors within safe temperatures.

A backup power path keeps the thrust reverser motor under control during primary supply failure, enabling controlled power-down and lighter end stops.

Selective skip shifting uses target torque thresholds to preserve EV stability and manual-like shift feel without abrupt drive force changes.

Placing the power conversion unit and connectors under the vehicle floor shortens power routing, eases assembly, and frees packaging space.

During regenerative deceleration, input torque is raised during shift-down to cut rear-wheel braking torque, suppress oversteer, and keep energy recovery.

Specific winding branch angle connections cut mutual inductance, raise equivalent inductance, and improve current ripple control.

A learned motor-speed profile lets EV shift control match clutch and transmission behavior, reducing shift shock in converted vehicles.

Reverse-triggered balance reduction and motor disengagement let riders safely dismount a self-balancing one-wheeled vehicle without unexpected motion.

Brake master cylinder pressure and motor speed are used to trigger real-time compensation torque that suppresses vehicle sliding during brake idle stroke.

Coordinated engine, fuel cell, and battery load sharing keeps each source in its efficient range to cut degradation, fuel use, and emissions.

Independent wheel displacement adjusts track width and ground clearance to improve EV turning stability, rough-road comfort, and automated freight handling.

Suspending refrigerant flow to the water-cooled condenser during acceleration lowers coolant temperature and helps preserve drive source output.

Overlapping dual-motor gears deliver differential speed and vector control without extra mechanisms, cutting EV transmission size and weight.

Sensor-based torque reduction eases parking gear meshing pressure, enabling reliable lock release with less motor heat and collision shock.

Predicting left-right suspension stroke differences lets torque drop early, reducing wheel torque imbalance and improving straight-line stability.

When shutdown cuts external power, a controller-side supercapacitor keeps the inverter active to discharge the DC-link capacitor on time.

Motor torque is modulated during regenerative ABS control to create driver-perceptible vibration when actual deceleration falls below expected braking.

Wireless identifier exchange links lead and remote locomotives faster, reducing manual setup errors in distributed train consists.

A cable blocks cover fasteners until it is detached, forcing high-voltage discharge before opening and reducing electric shock risk.

A rotatable rear arm guides a trailing power cable away from tracks, improving maneuverability and preventing cable damage in rough terrain.

Cruise speed is adaptively selected within a driver-set tolerance to match road grade and traction demand, improving EV efficiency and range.

A shared modular DC converter generates multiple vehicle low-voltage rails while cutting component count, cost, and low-load energy use.

Independent multi-ratio and single-speed e-axles balance launch torque, high-speed efficiency, and neutral towing capability.

Motor coils and the inverter form an active decoupling circuit that charges the DC supply with fewer passive parts and lower switching losses.

Automatic control sets target deceleration and braking torque for downhill cruising and obstacles, improving energy recovery with less driver input.