Speed Controller TRIZ Cases

A wheel drive motor partially surrounds a cardan shaft to create a compact spatially nested arrangement.

A vessel steering system calculates a pivoting limit angle for propulsion units based on actual operational states.

Brake control device compensates for electric brake fluctuations by distributing air brake force, reducing electromagnetic valve operation frequency.

A powertrain system derates an electrically powered hydraulic pump by reducing rotational speed to manage thermal load.

A motor controller circuit uses a second switching unit connected to the star point to enable bidirectional energy flow between voltage levels.

A traction drive motor control method switches between torque and speed modes to enable smooth acceleration.

A motor control apparatus synchronizes brush pairs via relay units to manage rotation speed ranges without increasing component count.

A vehicle power control apparatus manages electric power generation during jump start procedures.

A driving apparatus sets discrete turn-on and turn-off speeds for switching elements based on correlated output torque parameters.

A DC/DC converter uses a reactor to store and release magnetic energy for voltage step-up operations.

Separate ground bus bars in a vehicle inverter capacitor module reduce common mode noise while suppressing resonance caused by unbalanced parasitic parameters.

Motor control system activates electric assist motor to maintain stationary position on uphill slopes.

A play-reducing control apparatus outputs directional torque to clear mechanical clearance in the motor transfer system.

GPS-based speed control system for personal watercraft maintains reduced velocity when crossing perimeter boundaries.

A motorized watercraft control device connects operating, motor, and battery controllers via a two-wire differential bus for reliable data exchange.

A gearbox couples a generator to an electric vehicle axle to harness rotational motion, optimizing energy recovery from wheel rotation.

Processor-controlled walker maintains constant relative distance with user, reducing metabolic energy consumption.

A marine vessel propulsion system uses a rotatable joystick handle to adjust selected heading by predefined increments for precise directional control.

Feedback control corrects rotor position sensor offset errors to prevent unintended vehicle acceleration during torque transitions.

A failure determination device calculates current expectation values from motor parameters to detect signal line and conducting wire faults.

A powertrain start method uses a time delay triggered by user input to validate conditions before initiating engine operation.

Controller limits electric motor torque increase rate after fuel cell activation to prevent sudden power jumps.

A three-phase inverter precharge circuit limits switch-on current using a dedicated current limiting element connected via specific load outputs.

Controller estimates vehicle yaw to allocate regenerative braking torque, reducing undesirable yaw moments while maximizing kinetic energy capture.

Engine load generating unit detects relative rotation speed fluctuations between drive and propeller shafts to stabilize rotational motion.

A trolling motor system uses a Hall effect sensor to convert foot pedal position into electrical steering signals.

On-board system expands train occupancy range upon consecutive balise communication failures to prevent collisions from wheel slip or wear errors.

A variable voltage converter adjusts the DC link input to a traction motor inverter, reducing switching losses during low-speed operations.

A hybrid power system uses a power distribution device to selectively couple an engine and double-shaft extension motor.

A hybrid vehicle control unit disengages the first connecting mechanism to isolate the rotating electric machine from the power transmission path.

A boosting shunt regulator uses low loss field effect transistors to switch AC generator windings and transform voltage to a DC bus.

A drive module integrates a dual planetary gear set and electric motor to switch between torque vectoring and propulsion modes.

Synchronized brake actuation reduces mechanical load on wheels and couplers by eliminating timing delays between independent controllers.

A control apparatus calculates regenerative torque command values to supply power to a static inverter during overhead wire voltage loss.

Heterogeneous switching in an interleaved DC-DC converter balances high efficiency with reduced ripple current and noise across varying loads.

Adjustment lever position sensor signals motor readiness to the driver through tactile feedback without visual confirmation.

Periodic switching recovers energy during idle periods, resolving low battery charging efficiency in electric vehicles.

Injects time-varying flux voltage signals to estimate rotor angle error, eliminating torque sensor requirements and improving vehicle efficiency.

A vehicle control apparatus anticipates drive source rotation speed changes to synchronize motor and wheel speeds before clutch engagement.

An adaptive driving behavior adjusting method optimizes vehicle speed and energy recovery to extend electric vehicle endurance mileage.

A vehicle system adjusts deceleration rate by modifying negative torque demand on the electric machine based on closing rates to oncoming objects.

A vehicle stabilization system uses redundant electric drive units and battery strings to manage wheel speed differences through active torque control.

A modular electric vehicle structure separates battery and control units to streamline manufacturing.

A vehicle control unit uses gear dependent pedal mapping to determine torque generation during transmission shifts.

A control system switches between speed and torque modes to manage electric motor output in wheel loaders.

A three-phase inverter controller generates negative torque at a motor generator by simultaneously switching upper or lower arms.

An electric machine controller intentionally increases non-torque output to generate thermal energy and electromagnetic braking force.

A kick-down shift control device restricts motor torque upper limits during inertia phases to maintain consistent power delivery.

Intelligent control algorithms dynamically allocate load among engines and batteries to minimize fuel consumption while extending component life.

Dual stator generators in traction vehicles automatically balance power from external DC networks and internal fuel motors, reducing mechanical complexity.