Speed Controller TRIZ Cases

A busbar routed along the stator winding avoids covering hairpin ends, enabling variable motor torque without increasing motor length.

A radially protruding, plate-like inverter case cuts harnesses and avoids axle interference in tight work vehicle packaging.

Directed laser heating forms intermetallic heat-sink bonds while immersion cooling removes heat from remotely mounted integrated circuits.

Dual control units and a redundant pressure supply keep EV and HAD/FAD braking available, precise, and functional after partial failures.

An oblique battery orientation frees superstructure space, simplifies bracing and hydraulic routing, and keeps electric construction machines stable.

Controller-portion thresholds trigger targeted HFSI, flux, and sensor tests to detect pilot-control errors and update drive model parameters.

Dual brake circuits, redundant control units, and traction-motor backup sustain precise braking when hydraulic components fail.

Combining multiple sensor sets to weight wheel speed, inclination, and suspension control improves real-time autonomous driving accuracy.

Gradual inverter phase-current control limits torque during wheel spin to prevent unintended acceleration or deceleration in electric motorcycles.

A centralized optimization unit recalibrates ECU control parameters from prediction data, cutting hardware redundancy while preserving control precision.

Carbon rings reinforce a permanent magnet rotor against centrifugal forces while removing lamination bridges that weaken magnet flux.

Uses inverter power switches to actively discharge the DC link capacitor after shutdown while limiting current to protect components.

Sensor fusion and modular control let a transporter detect stairs, measure stair features, avoid obstacles, and generate safe movement commands.

A controller caps motor torque, power, and speed during simultaneous brake and accelerator input to reduce EV brake and powertrain wear.

Motor torque is adjusted using road grade, shaft stiffness, and vehicle weight to hold an EV on a slope without rollback or position oscillation.

When power demand spikes, the control unit shifts EV power distribution to protect critical propulsion loads while de-rating secondary loads.

A predictive traction and regenerative braking control scheme suppresses coupler impulses at grade changes for safer heavy-haul train operation.

When the processor fails, the drive circuit reads vehicle-type data and characteristic data to maintain correct motor control without costly ASIC memory.

Dynamic models estimate DC/DC converter inductor temperature from measurable signals, enabling proactive cooling and torque control before overheating.

A lash-crossing rate limiter and delayed torque ramp smooth hybrid vehicle creep, reducing torque shocks, jerk, and drivetrain wear.

Phase current control in a stopped electric axle drive generates vehicle heat while minimizing thermal imbalance across motor phases.

Phase compensation aligns motor-driven vehicle response with driver input speed, reducing correction operations and unnecessary acceleration changes.

Separate signal paths let two ECUs share accelerator pedal position data, so vehicle power control continues if one ECU fails.

Coaxial planetary gears and switching elements split torque from two electric motors while cutting EV drive-unit installation space and weight.

Regenerative braking during ship jumps creates extra energy recovery opportunities while suppressing excessive propeller motor speed.

Navigation-guided thermal control pre-cools motors and power electronics to cut losses, prevent overheating, and extend EV range.

Strictly convex distributed thrust allocation lets eVTOL multicopters converge on the same motor commands and stay controllable after a motor failure.

Calculating acceleration start time from alarm schedule, speed, and position lets trains clear level crossings at maximum allowed speed.

An axial flux permanent magnet drive with battery power and field-oriented control improves rail switch maintenance flexibility, runtime, and handling.

Reservation data drives dynamic EV charging prices, helping stations reflect real demand and improve power usage efficiency.

By disconnecting the traction motor and oscillating its speed, the battery can be drained before braking to preserve regenerative braking power.

Shared bridge arms and bus capacitors replace separate DC conversion hardware, cutting EV drive volume while improving energy efficiency.

A predictive controller adjusts battery SOC limits before zero-emission zones so hybrid vehicles can cross them without engine use and with lower fuel burn.

Sensor feedback cuts motor power during sharp turns to prevent baggage tractor tip-over while supporting electric motor retrofits.

A removable E-PTO module combines motor, inverter, battery, and pump to cut refuse vehicle hydraulic servicing downtime.

A vehicle control filter tuned to natural pitch frequency removes pitch components from acceleration demand without slowing response.

Independent rear-wheel torque control assists drift entry and maintenance in AWD vehicles while reducing brake and clutch thermal load.

Two drive motors split torque and zero-speed control to hold a vehicle on steep hills, reducing slip during parking and startup.

Driving torque reduction is varied by accelerator return change, enabling faster response for large inputs and smoother controllability for small ones.

A dual brake-control algorithm simplifies emergency rail braking, improving failure protection while reducing friction-brake redundancy.

A shared support frame carries both motor and battery, cutting support complexity, avoiding interference, and improving maintenance access.

A source-terminal voltage measurement uses substrate resistance to estimate device temperature and sensed current without a separate diode.

A separate enable button and steering-wheel touch input keep hill descent control accessible without overcrowding the wheel.

Ambient temperature is derived from motor, battery, and coolant temperatures in the MCU, cutting sensor cost and wiring complexity.

Coordinated EV-ICEV towing uses magnetic coupling and shared control to assist steering, braking, and battery charging while cutting fuel use.

A pressure-actuated disconnect clutch decouples the electric machine from the e-axle to avoid unnecessary charging and battery degradation.

A positive d-axis current at high temperature strengthens the magnetic field to prevent permanent magnet demagnetization while maintaining torque.

Dual pressure supply units and control redundancy keep EV wheel braking precise and available during component faults and steering interventions.

Operation data is used to estimate vehicle mass more accurately, improving driving load prediction and battery SOC control in HEV and EV driving.

Direct SAW torque sensing lets the controller correct PWM signals from actual shaft torque, cutting ripple and avoiding complex FOC calculations.