Electric Devices TRIZ Cases

Weighted EIS, open-circuit voltage, and temperature data enable fast, accurate battery module SoH grading for high-throughput second-life use.

Two series battery units with bypass lines and DC/DC conversion keep vehicle power available while isolating faults, short-circuits, and failed units.

Inverter-generated ripple current enables online EV battery impedance and cell phase-shift measurement during driving, improving health assessment under low-ripple conditions.

Driving-based SOC limits let battery packs charge within a lower-degradation range, extending lifespan without unduly restricting vehicle power.

Multiple hysteresis transit rates and relaxation factors improve battery hysteresis voltage calculation for more accurate SOC estimation.

A weakened lower hinge section deforms or fractures in side impacts to limit hinge stroke and prevent battery stack interference.

Melting solder opens upper-plate holes to route cooling water into stacked high-voltage battery cells and quickly suppress internal fire spread.

A positive-contactor battery layout uses pyrofuses to cut weight, lower contact heat, and keep power dissipation controllable during faults.

A magnetic sensor and local controller verify switch opening, then blow a backup fuse only if the contactor fails to disconnect.

A weakened lower hinge section deforms or fractures in side impact to limit hinge stroke and prevent contact with the battery stack.

Residual energy is estimated by grouping mixed cell types, using the minimum available capacity, and adding temperature-based energy for each group.

Spatially separated extinguishing components are mixed on demand and fed into the battery housing to suppress EV battery fires with lower structural cost.

Deformation-promoting cross-member sections absorb side-collision load between split battery units and help prevent battery crushing near the side sill.

A resilient three-point battery mounting isolates chassis torsion while maintaining crash strength and damping vertical vibration.

Compressed gas moves an internal partition to spray fire-fighting fluid quickly, saving battery-pack space during thermal runaway protection.

By separating normal and abnormal battery subsystems, the controller estimates remaining EV energy more accurately and avoids stranded-range errors.

Multiple backup power paths keep steering and wheel control active during voltage loss, with braking added to help prevent derailment.

Flat wires with stepped radial winding raise coil space factor and cut stator losses in vehicle motor stator assemblies.

Thin modular battery assemblies use perimeter frames and separate power electronics to fit utility EV spaces while lowering custom build cost.

Stored DC link and motor energy is dissipated through an in-housing auxiliary device after battery disconnect, avoiding external resistors and crash-prone wiring.

Pressure-triggered drainage and temporary pump boosting remove leaked coolant before it reaches the high-voltage battery.

Weighted normalization converts OEM-specific battery data into a comparable health score for replacement timing, valuation, and degradation tracking.

A removable fuse box built into an EV high-voltage module cuts wiring, eases fuse access, and supports interchangeable protection layouts.

A digital cut-loop signal replaces bulky EV harness loops to reduce false alarms and support reliable battery pack disconnection.

Faulty cells are bypassed and isolated while intact parallel strings are discharged to equalize voltage, preserving capacity and avoiding compensation currents.

A shared charge port and smoke duct route battery smoke and firefighting water, reducing manual intervention during EV battery fires.

Semiconductor switching replaces bulky battery contactors to avoid overheating, welding risk, and extra pull-up circuitry.

By modeling purge loss and stack leakage alongside reaction current, this case improves hydrogen UAV flight time prediction and fuel reserve safety.

Targeted suppressant injection through sealed EV battery pack access paths helps contain thermal runaway and limit fire spread.

A thermal trigger along the feeding line uses irreversible movement to cut off arcs and remove ionized gases where breaker space is limited.

Integrating tire inflation lines into a chassis fairing protects hoses from road damage while reducing drag and maintaining tire pressure.

Voltage and current sensing across battery contactors reveals weld-induced resistance rise and sustained voltage drop before startup is allowed.