Electric Devices TRIZ Cases

Neural analysis of current, voltage, temperature, and chemistry data flags abnormal battery cells faster than repeated charge-discharge testing.

Zero-voltage terminal pair detection lets identical battery monitoring units self-generate unique IDs, cutting cost while preserving cell control.

Sequentially opening parallel battery pack contactors spreads arc-related disconnection wear, extending switch life and reducing failure risk.

Continuous wires fixed to a base plate route vehicle harnesses without connectors, cutting vibration wear, parts, and installation steps.

After a crash, this case uses collision, leakage, and nearby-person detection to trigger an external warning and reduce shock risk.

A meandering battery vent channel cools hot gases and traps particles before discharge, lowering ignition risk around the vehicle.

Multiple monitoring connections combine active and passive insulation checks to detect symmetrical HV faults, even when the system is off.

Stacked battery modules, dividing panels, and a laminated busbar assembly improve packaging density while managing high voltage and coolant flow safely.

A preset-time wake-up circuit activates the BMS during charging, then sleeps to cut auxiliary battery drain without losing wake-up reliability.

Voltage-drop monitoring during filter capacitor charging detects contactor failures after closing, improving power conversion reliability.

A partition wall and intermediate floor route hot vent gas away from battery electronics during thermal events, preserving component function.

A monitoring and state-memory scheme keeps relays closed through processor reset, then turns them off after prolonged reset to avoid accidents and energy waste.

By adapting diagnostic temperature to the measured battery state, this case improves internal resistance estimation under changing temperatures.

A thermal model estimates cell tab temperature from current, measured battery temperature, and distance to enable timely traction battery power derating.

Multiple voltage dividers and surge dischargers improve railway line power measurement accuracy while protecting against high-voltage faults.

Extended Kalman filtering estimates cell charge and fault states from limited cell and module sensing, reducing battery monitoring complexity.

An inclined bracket creates outward and downward battery movement in broadside collisions, extending stroke within limited base space.

Predicted and measured battery voltage guide in-vehicle software updates, cutting repeat interruptions, power waste, and update time.

Delay and hold-relay logic limits frequent bus breaker closing in railway vehicles, extending breaker life and preserving manual control.

Charge-discharge measurements of ESR and capacitance enable fast vehicle capacitor SOH checks and earlier replacement planning.

A thermal sensor triggers a heated gas sensor only when battery failure signs appear, enabling earlier detection with less contamination and power use.

Forecasted vehicle-use behavior is combined with battery data to improve real-time battery SOH prediction accuracy and energy management.

Regulated gate current lets an existing power transistor autonomously discharge HV capacitors quickly without bulky high-impedance resistors.

Adds formation identification to redundant device IPs so train sets can merge or divide without address conflicts or relay reconfiguration.

Periodic switching between two DC current levels enables accurate battery internal resistance measurement across 1 Ah to 200 Ah without complex AC testing.

Integrated ADC-based monitoring detects overvoltage and undervoltage in EV power converters, enabling safe shutdown with lower circuit complexity.

A thinner side frame and deformable outer regions absorb side collision loads downward, protecting the battery module without added floor weight.

A single rate generator and frequency calculation detect axle and bearing faults without multiple speed sensors or voltage circuits.

A control device links train cameras and sensors for real-time data sharing, coordinated recording, and abnormal noise or vibration investigation.

A longitudinal fuel cell, junction box, and power controller layout saves vehicle space while preserving crash absorption and service access.

Low-frequency impedance guides air purge timing in a stopped fuel cell stack, removing residual water without over-drying the membrane.

A conductive bridge shorts a failed cell's terminals to isolate it inside the module, avoiding full pack replacement and reducing maintenance time.

A controlled reflux diode creates a temporary surge-current path in a battery pack, protecting the discharge control switch under inductive loads.

Inserted reinforcing members pass through side frames to transfer side-impact loads and limit battery case deformation in EV collisions.

A closed cross-section around the motor mount boosts front-body rigidity, preserving crash stroke while preventing cabin-side motor retreat.

Route, weather, traffic, and fleet battery data are used to precondition EV battery heating and cooling before thermal loads occur.

Dual current sensors compare parallel current paths to trigger safe isolation, limiting leakage, short circuits, and residual energy.

Distributing transformer and converter units across wheel units balances axle load and improves crosswind stability in rail vehicles.

A sealed split-core transformer with integrated clamping harvests line energy while enabling fast hot-stick installation and long-term outdoor reliability.

A short tentative check at vehicle standstill ends diagnosis when no abnormality is found, cutting battery drain and preserving charge.

Rate-based power-loss monitoring distinguishes sudden circumvention from gradual battery loss, reducing false ignition interlock violations.

By aggregating SoP and SoE uncertainty across battery packs, this case sets safer load limits while preserving vehicle energy storage availability.

A retractable track boosts robotic mower traction on slopes and poor surfaces while cutting energy use and wheel wear.

Individually removable overlapping cover panels keep a cell-to-pack battery enclosure sealed and load-bearing during servicing.

Preformed frame corner R shapes and pressure welding improve EV battery case sealing, space efficiency, and crack resistance.

Weighted friction, temperature, and air-resistance losses improve battery vehicle range prediction for trip planning and charging decisions.

Filters acoustic signals above 60 kHz and correlates temporal response to detect electric arcs in closed chambers despite ambient noise.

A bulged motor compartment and inclined reinforcement member preserve crash stroke while routing collision loads away from the battery.