Speed Controller TRIZ Cases

A light-guiding collar illuminates the rotary knob so wall load controls stay visible and usable in dark rooms without continuous power draw.

When rear wheels slip on uneven roads, braking control cuts regenerative torque and adds driven-wheel braking to keep total brake force stable.

A mapped fuel-cell and battery power split keeps fuel cell voltage stable during transient vehicle loads while preserving traction response.

Leading axle slip is used to predict road conditions ahead, letting trailing axle torque be reduced before slip, wear, noise, and energy loss rise.

Hydraulic brake compensation offsets reduced rear-wheel regeneration on slippery roads to keep deceleration stable and predictable.

A controller adjusts cutting height and ground speed from battery charge and target run time to help finish mowing before power runs low.

Dynamic inverter power limits predict battery temperature during charging and driving to prevent overheating while preserving drivability.

PWM duty-cycle control and output filtering let a high-voltage source drive a lower-voltage motor with lower weight, cost, and discharge risk.

A detachable dual-battery setup switches power by driving mode and motor operating point to cut power loss and extend vehicle range.

Front and rear motor torque is learned from wheel speed differences to cut AWD EV power use while maintaining requested drive torque.

Measured inter-vehicle forces trigger revised locomotive effort distribution, reducing coupler stress while keeping multi-vehicle routes on schedule.

A detachable second battery lets the controller schedule conditioning by SoC, extending range while improving battery health and efficiency.

Real-time station data predicts waiting passengers so train frequency can be raised or reduced to balance congestion and service cost.

A downstream enabling unit checks requested motor torque against a safe threshold to block wheel-slip-inducing torque and preserve vehicle stability.

A control system detects universal joint motion and adjusts motor speed to cut axle speed mismatch, vibration, and shuddering.

Three processors split torque calculation, motor control, and output validation to cut EV response latency while meeting functional safety needs.

Variable lever resistance gives riders clearer feedback when reducing motor drive or regenerative braking, improving control feel.

A processor offsets inverter-to-motor cable voltage drop during calibration and operation to preserve the DC set point and motor performance.

By shifting motor d-q current operating points, this case enables controllable drive-system heating during travel without changing hardware topology.

When differential lock and wheel travel can overload a half shaft, the controller truncates motor torque to stay within shaft capacity.

Balances engine and electric machine output by switching motor and generator modes to meet flight power demand with lower fuel use.

Updates run only while charging and travel is locked out, preventing a shift to an operable state and improving vehicle security and safety.

Brake pedal input is split between hydraulic and regenerative braking to smooth coupled braking, reduce nodding, and limit component wear.

Controller-based torque feedback balances wheel motor velocities in commercial mowers to prevent overheating and maintain stable operation.

A downward protruding inverter housing packs bus bar and secondary circuits to cut converter height, limit footprint, and suppress EMI.

Conductive motor and inverter housings route and shield the DC bus bar, adding ferrite filtering while protecting wiring in collisions.

Routing the DC bus bar inside a joined motor-inverter housing helps protect battery connections in collisions while limiting EMI and package growth.