Electric Devices TRIZ Cases

Fleet-based deceleration data maps regen power, speed, and acceleration to detect mechanical braking and improve EV driving efficiency.

Pressure changes in recessed underbody air chambers detect and localize traction battery impacts while keeping the sensing structure simple.

Planar sensors between adjacent battery cells detect swelling, force, and pressure early, improving fault prediction in dense battery packs.

Tracks the rate of change in maximum cell voltage deviation by battery array to detect degradation faster with lower computation during charging.

When fuel cell activation delays full output, this case shows how travel-state judgment and driver alerts manage limited acceleration.

Pressure-curve comparison rates pantograph catenary-following ability to stabilize current collection, reduce wear, and limit arc erosion.

An internal reinforcement member bonded to the cover and bottom stiffens the battery module case against vibration and impact damage.

Air ducts placed through a central cooling structure remove heat from surrounding cylindrical cells, improving battery safety and performance.

Motor torque data lets the vehicle control module estimate EV mass in motion, improving braking response and stability control.

Uses assisted battery discharge and cell voltage-resistance measurement to identify the lowest SOH cell for timely inspection, exchange, and recycling.

Periodic wake-up temperature checks let EV battery monitoring conserve stored energy while still detecting thermal runaway risk.

Opposing brackets with staggered load transmission portions spread collision forces to keep vehicle battery modules securely attached.

Simultaneous even- and odd-cell voltage checks with pull-up resistance switching detect battery module open wires while reducing load-change false positives.

A supervisory controller re-sends the active discharge command after momentary power loss so residual HV bus voltage is reliably removed.

High-rate battery tests are corrected with a machine learning model to remove overpotential noise and estimate true charge-discharge performance.

A network-shaped slit channel drives turbulent coolant around the stator core, boosting motor heat dissipation in compact high-power EV designs.

Faulty BMS memory blocks are isolated, extended, and restored from local backup sections to avoid data loss and shutdowns.

A rear-side PCB measuring bridge lets one metering socket capture power use from additional loads on the same circuit without extra sockets.

Inert gas is routed through ducts to purge combustible battery-pack gases, limiting ignition and thermal runaway propagation in vehicles.

Independently controlled battery cooling zones switch to fault mode to concentrate cooling on affected cells and delay thermal propagation.

Event-triggered calibration blends physics-based and machine learning models to improve battery RUL prediction across usage and temperature changes.

Independent wheel motors and separate hydraulic power management improve traction, reduce ground damage, and extend battery life.

Real-time low and high fuel economy bounds stabilize vehicle DTE display and improve range guidance when driving conditions change.

Pressure-gradient checks after reduced fuel flow reveal fuel outlet faults in multi-tank fuel cell systems before uneven tank emptying occurs.

Crash frame profiles and stronger cross-member ends absorb and spread side-impact loads to better protect battery cells.

Crash frame profiles and stiffened cross-member ends spread side-impact loads across the tray to better protect EV battery cells.

A heat-releasable sealing flap lets a fire hose open the battery housing and inject extinguishing fluid while limiting smoke and fire entry.

When current sensing fails, battery temperature rise timing triggers contactor cutoff to prevent overheating while allowing charging and driving.

Rotatable wheel magnets maintain adhesion on curved, vertical, or inverted ferromagnetic surfaces while improving mobility and payload.

Rotating contacts and an electromagnet combine pre-charge and main relay functions to cut EV installation space and limit inverter inrush damage.

Time-windowed cell voltage deviation and dispersion analysis enables earlier EV battery thermal runaway warnings than pack-level monitoring.

Threshold-based state switching protects wheel-unit batteries from high-temperature TPMS operation while preserving service life and restoring monitoring when safe.

Gap-mounted impact buffers and rupturable holder sections absorb side-collision loads to protect cylindrical power storage devices.

A high-voltage battery pack and DC-to-DC converters replace the low-voltage battery to power critical loads with redundancy and longer service life.

After switch-off, the AC motor discharges inverter residual voltage to reduce electric shock risk during hydraulic vehicle maintenance.

Wake commands from an autonomous driving kit are executed only when the vehicle is parked and stationary, preventing improper power mode changes.

Simulation with battery and powered-unit models predicts relay self-diagnosis and current calibration compatibility before physical verification.

Voltage-stabilized relay reclosure protects priority vehicle loads from upfit power surges while reducing solid-state relay stress and repeat trips.

Dividing vehicle power control into east, west, and rear ECUs cuts wiring and preserves critical functions through dual power buses.

Resistance shifts during constant-voltage charging reveal swelling cells without battery pack disassembly, helping prevent misdiagnosis and safety risks.

Geographic ECU zoning and redundant power sources keep ADAS and other critical vehicle functions powered after a source or ECU fault.

Separating open-circuit voltage from overpotential and ohmic resistance improves battery state estimation during dynamic charging and discharging.

Detachable battery modules on a load-bearing bracket let engineers replace only faulty sections, cutting sealed-pack repair cost and complexity.

A secondary power source starts the BMS first, so the main supply is connected only after abnormal-state checks reduce fire risk.

A cassette pack with transverse battery blocks and a central cooling plate cuts EV battery volume while preserving flexible dimensions and heat removal.

Torque magnitude and direction are used to estimate gear and shaft fatigue in EV drivetrains, including regenerative braking loads.

AI diagnostic models combine sensor, control, and fleet data to detect electric drive faults early and predict remaining service life.

Machine learning outlier models compare battery node diagnostics with pack-level patterns to flag faulty cells under varied operating profiles.

Relay, photocoupler, and op-amp modules detect reverse connection, overcurrent, and undervoltage without an MCU, cutting cost and improving protection.