Electric Devices TRIZ Cases

External brackets and a bottom support substrate let the battery disconnect unit be removed from below without dismantling battery pack components.

Dynamic torque blending uses grip and wheel load to keep ABS stability while preserving regenerative braking energy recovery.

A layered multi-voltage vehicle interconnection layout simplifies installation, improves packaging, and reduces weight, cost, and manual assembly.

Post-charge voltage sampling and differential peak detection reveal lithium plating without battery disassembly or low-accuracy aging estimates.

Uses the PID controller’s I component to estimate road grip and adjust target wheel slip for single-track traction control without extra sensors.

Cold nitrogen, thermal sensors, and filtration work together to cool overheated EV battery packs during manufacturing and prevent thermal runaway.

A front-positioned filter shields the protruding electric pump from road debris while preserving heat medium suction and circulation.

State-based charging keeps a secondary battery below a deterioration limit during operation, then raises charge after shutdown for reliable power.

Virtual vehicle signals activate the battery relay for pack diagnosis without disassembly, simplifying EV battery health evaluation.

Voltage deviation variation patterns reveal battery micro short circuits early, helping isolate damaged cells before hard shorts occur.

Sacrificial fastener clips release HV cables during vehicle impacts, limiting connector pullout loads while keeping routing secure in normal use.

Uses current, line voltage, and communication signals to switch battery functions on only when needed, limiting power loss without ignition detection.

Dynamic EKF gain scheduling balances SOC estimation speed and accuracy in traction batteries to improve DTE reliability and reduce stranding risk.

A controlled energy dissipater absorbs power swings during load changes, stabilizing the power source and reducing battery stress.

Circuit breaker state feedback cuts fuel flow early to limit turbogenerator overspeed and mechanical stress in hybrid aircraft propulsion.

Inductor voltage drop enables fast short-circuit detection and dynamic semiconductor switch impedance control to protect vehicle electrical components.

An auxiliary inverter leg switches a resistor into the DC bus to rapidly discharge capacitors during shutdown and prevent overvoltage damage.

Wake commands are accepted only when the vehicle is in park and at 0 km/h, preventing improper power mode changes from autonomous driving kits.

Current-sensed string connectors and controllable disconnects isolate parasitic fault currents in adjacent battery strands before overheating.

Switched bus segmentation and insulation monitoring pinpoint leakage locations in aircraft isolated-earth systems for safer isolation and maintenance.

Monitors cell-group resistance and voltage changes to distinguish internal shorts from fuse fatigue and trigger cooling or discharge.

High-stimulation battery testing is corrected with overpotential compensation and factor correction models to speed diagnosis while preserving accuracy.

Voltage ratio analysis pinpoints failed battery cell locations and distinguishes isolation-loss failure modes without battery pack deconstruction.

Acceleration and wheel slip feedback update the target slip in heavy-duty vehicles to improve traction, braking, and stability across surfaces.

Weakest-cell voltage comparison flags battery pack faults more reliably, cutting false positives and supporting predictive maintenance.

Switchable bus segments and insulation monitoring pinpoint leakage location in aircraft isolated-earth systems for faster isolation and maintenance.

Resistance monitoring during vehicle operation pinpoints insulation faults in the EV charging circuit and blocks fast charging when oxidation is detected.

A pre-charged storage battery bypasses converter startup delays to keep critical vehicle loads powered during first-system abnormalities.

Two control modules compare stored vehicle category data before drive activation, blocking unauthorized hardware swaps and illegal tuning.

A diagnostic hold circuit drives a shutoff transistor to isolate high-voltage lines during collisions or relay failures, reducing electric shock risk.

Mode-based braking uses speed and lift activation to enable regenerative collection operation while maintaining stable highway braking.

Adjusts battery charge and discharge factors from fuel cell deterioration to stabilize SOC and avoid braking energy loss.

Transforms three-phase motor currents into orthogonal signals and a covariance matrix to identify stator and inverter faults without delay.

Rear sensors and controller logic detect obstacles and reverse speed, then brake the motor to prevent collisions during e-bike backing.

Selective rotor-wheel coupling cuts in-wheel motor losses and noise while preserving legal braking through synchronized engagement.

Sequentially switching relay diagnosis across battery packs cuts startup delay while maintaining failure coverage in parallel storage systems.

A grounded metal enclosure, isolation transformer, and fiber switch protect roof satellite antennas from high voltage without degrading coverage.

A grounded metal enclosure, 36 kV isolation transformer, and optical fiber link protect roof satellite antennas from rail high-voltage exposure.

Uses deceleration, speed, acceleration, and battery power data to detect mechanical braking and improve regenerative braking advice across vehicle types.

Weighted battery faults and vehicle context data guide safer pack disconnect or continued operation based on location and passenger risk.

Optical fibers in the battery guard detect impact damage and liquid ingress without complex sensor networks, enabling earlier underbody fault diagnosis.

A grounded metal enclosure, isolation transformer, and optical fiber protect roof satellite antennas from high-voltage exposure without weakening coverage.

A grounded metal enclosure with 36 kV isolation and optical fiber protects rail satellite links without the signal loss caused by thick copper wiring.

Route energy prediction and battery health are used to switch SOC limits, preserving pack life while keeping needed EV energy available.

Calculates driving and refrigeration energy plus parking time to predict EV battery sufficiency and suggest charging before cold storage is lost.

Dynamic target speeds based on following, turning, and road conditions improve vehicle energy-use estimation for better range prediction.

A movable underbody nozzle injects extinguishing and cooling media into sealed EV battery packs to speed fire suppression without sacrificing sealing.

A coupling capacitor and resistor divider bring the sensing node back into range quickly after relay switching, improving earth leakage detection.

A hybrid battery cell housing uses gas pressure to eject a faulty cell core, limiting thermal damage while preserving pack functionality.

A switchable ground path lets larger Y capacitors suppress converter radio interference while reducing electric shock risk in DC vehicle networks.

A direct air bag voltage comparator bypasses unstable CAN signals to ground the battery management system and shut down EV power faster after collisions.

When a primary EV battery fails, ECU-controlled switching to a backup battery keeps the motor powered for reduced-speed travel to safety.

A separate external conduit protects traction power and supply lines, shortens routing, and simplifies crawler carrier mounting.

Voltage-command feedback detects connector miscoupling in a vehicle DC-DC converter and triggers shutdown to prevent power exchange failures.

A magnetic sensor and controller verify switch opening and blow a backup fuse when contacts fail, speeding high-voltage load disconnection.

Voltage-based diagnosis infers open-circuit faults in autonomous vehicle power wiring and checks whether auxiliary power can sustain critical loads.

An elastic-rigid reinforcing panel between the case and battery module absorbs collision energy, limiting damage without added housing weight.

Correlates CAN-bus IDs with component power signatures using regression, enabling EV power disaggregation and component monitoring.

Ranks multiple fuel cell systems by capability and masks startup power variance to keep electrical output stable as units age or are replaced.

Temperature-responsive grooves in a shape-memory bus bar release cell leads during overheating to stop current without extra fuse space.

Operating-variable analysis detects battery self-discharge early, classifies fault criticality, and helps prevent thermal runaway.

LIDAR surface profiling detects wear and defects on overhead trolley electrical contacts, enabling timely maintenance and reducing arcing risk.

A parallel pyro-fuse and thermal fuse circuit handles current spikes and sustained overloads to improve vehicle power-path reliability.

A high-voltage connection lets one locomotive switch to slug or inoperative mode, reducing fuel use, engine hours, and emissions.

Dynamic mask timing suppresses false EV motor and inverter temperature sensor faults when motor lock occurs at startup.

A vertical rear wall behind hydrogen tanks houses a larger heat exchanger, improving fuel cell cooling, drag, and tank protection.

A fume collecting chamber and exhaust pipe redirect thermal runaway gases away from the passenger compartment while relieving battery pressure.

Estimated motor current from voltage and speed is compared with actual current to detect compressor magnet demagnetization more accurately.

When onboard energy runs low, the controller cuts propulsion first and preserves tilting drive power to keep the vehicle stable and maneuverable.

Monitors voltage loss patterns in vehicle ignition interlocks to distinguish tampering from benign power interruptions and avoid false violations.

A keyed disconnector interlock forces electrical isolation before opening the component compartment, reducing voltage exposure during battery maintenance.

Strain-gauge sensing tracks battery cell deformation before heat escalation, giving the BMS earlier thermal runaway warnings.

Radar and sensor-based impact prediction lets a vehicle disable only at-risk battery packs, improving crash safety while preserving mobility.

A parallel switch and overcurrent path isolates vehicle power branches, sustaining standby supply and fault diagnosis without extra power use.

A channeled underride plate routes and cools battery hot gases away from the vehicle interior to reduce fire risk in electric vehicles.

A precharged pyrotechnic shutdown path isolates vehicle supply lines even during voltage drops or control power failure.

PWM switching lets a high-voltage intermediate circuit discharge quickly while keeping SMD resistor power loss and thermal stress within limits.