Speed Controller TRIZ Cases

A drive system supplies charging current to a neutral point via an inverter and rectifier.

A long stator linear motor extends control zones with virtual drive coils to manage transport unit movement across segment boundaries.

Segmenting inductors into parallel or series configurations achieves high voltage gain with low duty cycles, reducing power loss.

A marine vessel steering apparatus uses a control unit to set target pivoting angles and drive the steering mechanism toward those targets.

Calculating drivetrain torsion speed before vibration extraction prevents conventional systems from exacerbating vibration during acceleration or deceleration.

A lawn mower control apparatus manages motor output torque using preset thresholds to prevent drive wheel rotation during operation.

Segmented track zones with spaced winding segments reduce energy consumption during cruise phases while maintaining operational reliability.

A two-electric-motor transmission unit manages torque via dog clutches and synchronized gear sets to enable seamless powershifting.

A control apparatus switches a hybrid vehicle to EV mode when detecting sub-battery abnormalities.

Segmented gear pairs and coordinated clutch control reduce motor volume while eliminating shift shock during gear changes.

A hybrid control system monitors motor temperature and activates the engine before output limits trigger. This mechanism maintains driving power during high-load EV operation.

A power converter adjusts semiconductor switch turn-off speed based on real-time voltage, temperature, and current monitoring.

An onboard electronic control circuit modulates DC power source current applied to each polyphase motor brushless electric motor phase.

Segmented cross members and localized weak portions distribute side impact loads, protecting the electric power converter while reducing vehicle weight.

Independent jump-starting bases enable rapid charging of galvanically separated vehicle batteries, reducing breakdown risk and warranty costs.

An integrated bus bar with internal coolant channels reduces resistive heating while conserving battery pack volume.

An electric vehicle drive system uses a boost circuit to raise DC bus voltage, eliminating field weakening control and expanding the speed adjustment range.

Electric drive machine serves as intermediary reference for internal combustion engine torque, correcting inaccuracies from aging and wear.

Accumulated distance comparison detects over-rotation from slip or sensor errors, suppressing assist torque to prevent unsafe driving.

Segmented inductive elements reduce flux inversions and power losses while maintaining high current inversion amplitudes.

Fuzzy logic algorithms compute regenerative braking values using brake pedal displacement, vehicle speed, and object distance.

A centralized supervisory controller distributes power to decentralized electric motors using open-loop logic.

A hybrid controller calculates compensatory torque to synchronize rotational speeds during dual clutch shifts.

A vehicle controller adjusts drive motor gear stages to manage torque and temperature.

A train control device adjusts speed based on estimated earthquake arrival timing to position the vehicle outside hazardous sections.

A roller apparatus with a variable transmission optimizes gear ratios to transfer mechanical energy, reducing battery pack weight and cost.

A star point controller manages current flow through a motor's star point connection to enable bidirectional power transfer between onboard electrical subsystems.

Auto cruise control selects pulse and glide modes for hybrid vehicles.

A boost charging method determines permitted current based on drive motor torque to manage electrical input.

A powertrain controller adjusts torque responses based on driver identification and environmental conditions.

Press-duration logic interrupts drive torque for freewheeling, resolving cumbersome manual reactivation steps.

A vehicle control system manages power converter states during stops to minimize energy loss and maintain electrical insulation.

A distributed power system establishes remote locomotive control via automated linking signals transmitted from a lead unit.

A voltage converter control apparatus calculates a normal duty ratio range based on output voltage command values to define operational limits.

Controller injects direct axis current to create high loss mode, reducing battery charge rates and friction brake usage during regenerative braking.

A controllable converter limits rotary field speed in electric drive motors to maintain traction.

Controller adjusts transistor timing based on speed data to store regeneration charge current in coils, improving battery charging efficiency at lower speeds.

A preventive filter attenuates braking instructions to reduce torque oscillations and passenger discomfort.

A parking control method adjusts electric motor creep torque to prevent curb collisions.

A bicycle control apparatus adjusts auxiliary drive force and gear ratios based on detected crank rotational speed.

Rocking motion rotates an electric motor to generate electricity that triggers the power supply module for automatic startup.

A modular vehicle power delivery system uses a laminated bus bar to connect stacked electrical modules.

A variable Y-capacitor structure adjusts attenuation bands via switching elements to manage common mode noise in electric power conversion systems.

System performs automatic engine turnover in EV mode to prevent corrosion and wear while maintaining emissions performance.

Unified controller architecture merges traction and auxiliary systems to reduce component count while maintaining independent motor operation.

A motor controller uses a pedal rotation sensor to detect backward pedaling and initiate regenerative braking.

Variable retardation factors in the engine torque estimation unit resolve low accuracy issues during mode switching.

A control unit manages brake chopper duty ratios to suppress bus voltage in electric vehicle controllers.

A power characteristic control system alters switching frequency to emit predetermined acoustic tones from an electrified vehicle powertrain.