Speed Controller TRIZ Cases

Dynamic load balancing reduces uneven wear among electric machine inverters by adjusting power distribution based on temperature differences.

Controller injects test d-axis current pulse into three-phase electric machine to detect single-phase cable disconnections or current sensor anomalies.

An elastic member inside a tubular terminal maintains consistent contact pressure, resolving instability in high-voltage vehicle connections.

A vehicle system uses a dedicated electric resistor to rapidly consume counter electromotive force generated during collision.

Feed-forward torque compensation handles varying loads to maintain clutch pressure without auxiliary pumps, resolving energy conservation trade-offs.

A control unit calculates final deceleration torque using feed forward and feedback signals.

A control system synchronizes inverter switching frequencies using a shared internal clock to coordinate pulse width modulation across multiple traction machines.

A vehicle traveling control apparatus adjusts the target position rate based on real-time feedback to minimize deviation between actual and desired positions.

Motor controller uses pre-calculated speed-torque windows to prevent wheel slip and improve traction during slippery driving conditions.

Variable neutral point shifts with battery state of charge to balance kinetic energy recovery against driver comfort during deceleration.

A four-wheel drive electric vehicle control method detects wheel speeds and pedal depth to estimate road conditions and adjust torque distribution.

Controller calculates motor torque to minimize backlash vibration when engaging the parking gear on a ramp.

Capacitor banks store regenerative braking energy to maintain steering and brake servo operation when the main battery fails.

Segmented wheel-end reducers reduce mass by handling lower torque levels instead of full final drive loads.

An electric motor controller adjusts torque demand using accelerometer signals to estimate vehicle speed without wheel sensors.

Switching device selects active communication ports based on real-time signal quality measurements.

A bicycle inverter charges the battery unit directly from an external DC source using switching elements and load inductive components.

A fuel cell controller reduces stack voltage below the inverter lower limit to increase current and water generation during acceleration.

PWM torque control heats hybrid batteries during rolling phase without degrading electric machine efficiency or charge state.

Adaptive control signals adjust engine speed relative to clutch torque capacity, resolving NVH and transition time contradictions in hybrid vehicles.

Replacing mechanical springs with an electric drive reduces disengagement force, lowering component wear and extending service life.

A control device adjusts motor torque responsiveness to disturbance torque during vehicle starting operations.

A vehicle controller adjusts motor coasting torque via pulse width modulation to manage wheel slip conditions during deceleration.

A vehicle control unit dynamically adjusts electric power limit values based on real-time battery state and operating conditions.

Removable chair component couples to power base, transferring passenger-specific settings to resolve interchangeability complexity.

Stacked DC leadframes of opposite polarity cancel parasitic inductances, reducing voltage spikes and switching losses in high-voltage applications.

Carrier generating unit adjusts phase relationship between voltage command and carrier signal to maintain AC current symmetry.

Adjusting ramp signal gradients resolves slow current control and high output ripple in low load environments.

Attaching the inverter to both motor brackets distributes load across multiple surfaces, suppressing size increase while maintaining support strength.

A slip ratio estimation device calculates friction coefficients from torque instruction values, rotational speeds, and normal reaction forces.

An efficiency map generating apparatus detects torque, power consumption, and rotation counts to build motor maps during vehicle operation.

Engine clutch control system calculates inertia differences and blends motor torque to eliminate vibration when switching from hybrid to electric mode.

A recessed handle pad accommodates a portable GPS to reduce visual obstruction and shock damage.

A bicycle regenerative brake control device adjusts motor output based on dual brake lever displacement to synchronize mechanical and electrical braking forces.

A vehicle electrical system uses battery cell bypass switches to manage power distribution between traction and auxiliary sections.

A locomotive controller generates engine speed commands based on ground speed error signals to maintain target velocity.

Segmented electric motor output shaft enables central installation for balanced weight distribution and vibration reduction.

A detachable inverter cover dissipates heat from the vehicle floor-mounted housing without active fans.

Segregating signal and power terminals on functional modules reduces electromagnetic interference while simplifying maintenance access.

An electromechanical clutch assembly manages transmission ratios, eliminating parasitic losses from hydraulic systems while enabling seamless gear transitions.

A controller selects a travel path for an article transport vehicle using multiple detectors to determine occupancy status.

Controller depletes battery charge to a minimum limit upon arrival at a destination while raising temperature to a shutdown threshold.

A hybrid system control map determines target torques based on vehicle velocity and battery state of charge to initiate engine startup.

Synchronous vector current commands regulate an AC electric machine to maintain bus voltage, preventing range loss when the battery pack disconnects.

A vehicle power supply system executes discharge control using inverter current signals to confirm motor rotation status.

A charging device uses a combustible gas sensor to detect ambient hazards before initiating power delivery.

A watercraft propulsion control unit manages normal and joystick modes using engine rotational speed data for safe transitions.

A controller injects voltage into an electric machine to detect cable swap conditions via sequence current analysis.