Speed Controller TRIZ Cases

Predicted vehicle acceleration raises compressor speed early to keep the air bearing stable, avoiding rotor contact while saving fuel.

During low-power periods, selected drive subsystems are shut down to equalize battery discharge and extend rail vehicle range.

Regenerative braking harvests downhill and deceleration energy in towed vehicles, cutting brake wear while improving stability and fuel use.

Precomputed table regions let trains adapt to voltage and boarding fluctuations while cutting onboard computation and communication load.

Fleet trip simulation couples battery, vehicle, and environmental dynamics to place EV chargers where demand is real and range limits matter.

Closed-loop brake control balances regenerative and friction torque when actuator capacity is limited, improving one-pedal deceleration response.

Adjusts free-running deceleration from a perceptual risk index so coasting better matches driver timing preferences, even with a preceding vehicle.

Real-time control of throttle and braking uses center-of-gravity and terrain data to limit wheel spin, braking damage, and turf disruption.

Real-time torque-speed comparison detects hills, headwinds, and powertrain faults, then adjusts torque, speed, or battery protection.

Road and driving data are used to predict motor braking torque, improving regenerative energy recovery and battery charging during deceleration.

Uses inverter-generated pulse signals and filtered bus current to estimate battery impedance on board, enabling SOC and SOH diagnostics.

Selective switch closure across offset stator groups cuts back-EMF braking torque in 6-phase and 12-phase EV motors.

A learned motor speed change during shifting lets the control circuit cut shift shock in electrified vehicles with varying drivetrain layouts.

Brake master cylinder pressure is used to trigger motor compensation torque during brake idle stroke, suppressing EV sliding in time.

Embedded MOSFET prepackages and a planar carrier substrate halve parasitic inductance, supporting compact 25 kW+ converters with up to 99% efficiency.

Fault severity classification lets an AWD controller switch remedial torque strategies, preserving stability and smooth throttle response during sensor faults.

Center-of-gravity sensing and steering torque keep a ceiling drilling guide aligned on wavy surfaces, cutting ladder repositioning and hole errors.

A bidirectional inverter and switch device let one EV converter power drive and auxiliary motors, cutting interfaces, cost, and size.

Multiple driving-force maps adjust EV torque by lever position, speed, and accelerator input to mimic clutch feel and reduce driver discomfort.

Using trailer mass and towing force from existing sensors, this case shows stable electric trailer drive control without added sensors.

Opposing helical planetary gears cancel thrust loads in a coaxial vehicle drive, cutting radial and axial size while protecting bearings.

Upstream motor-side couplings before the reducers expand EV drive modes while cutting coupling bulk, weight, and cost.

A loss-map torque split is switched only after checking lateral acceleration, friction, and understeer to avoid instability and discomfort.

Coordinated front and rear wheel slip control cuts rear motor torque when traction diverges, improving stability on low-μ roads.

Dynamic DC bus voltage control uses torque, speed, and temperature maps to keep the electric machine near peak efficiency and cut hydrogen use.

Adaptive regenerative braking torque limits balance energy recovery with hydraulic braking to reduce wheel lock and ABS triggering on rough roads.

One motor holds input shaft speed while the other adjusts torque, reducing dual-motor interference and rattling during EV gear shifts.

Two electric machines with different gear ratios help a self-powered dolly deliver launch torque, cruising capability, and regenerative braking.

Relative deformation and speed-difference detection guide motor torque so EV gears re-approach smoothly, cutting rattle, vibration, and noise.

Mechanical power demand estimation switches EV motors on or off to cut partial-load electrical demand and reduce motor wear.

A stator-mounted gear ring shortens axial length while planetary gearing boosts torque without raising current losses or magnetic saturation.

A two-stage start sequence with neutral confirmation and status alerts makes electric marine propulsion ready states clear and prevents unintended propeller drive.

An undervoltage-triggered backup supply keeps the bridge arm driven during low-voltage faults while blocking reverse flow errors.

Physiological sensors detect driver mental fatigue and trigger relaxation sounds or easier driving modes to reduce manual shifting stress.

By rotating active traction units based on load, line, and weather, the train cuts energy loss and extends maintenance intervals.

A control device lets drivers switch between MT and EV modes, then overrides to EV mode when SOC leaves a safe range to protect battery charge balance.

Alternating and sustained switch states discharge fuel-cell residual charge quickly, reducing terminal voltage without junction-box relays.

Four independently controlled electric motors apply differential torque to maneuver the vehicle while its chassis withstands impacts in ADAS tests.

The case combines multi-consumer load detection and predictive data processing to balance fuel cell output with battery demand.

A controller adjusts drive motor torque command inclination based on demand torque and temperature to improve responsiveness.

Modular controller assemblies integrate dedicated heat sinks to manage thermal loads in electric utility vehicles.

Individual stepper motors drive transport carriages along a circulating path for precise positioning at processing stations.

A hybrid vehicle control device manages engine startup and transmission downshift operations using a motor generator and clutch system.

Active safety control system manages four motor torques to resolve slow hydraulic response and enhance stability.

A vehicle control device adjusts regenerative braking force to stabilize drive wheels during deceleration events.

Planar flux-conducting elements redirect magnetic flux from busbars to lower electromagnetic interference without increasing converter weight or cost.

A drive control apparatus adjusts motor torque priority to suppress vehicle slipping on rough surfaces.

Insert discs bridge flux sections across nonmagnetic gaps in laminated rotors to distribute centrifugal forces.

A high frequency interlock module injects excitation signals into inverter drive circuits to determine cable connectivity status.

An auxiliary steering unit guides the scooter toward a lease station when power drops or the device exits the designated range.