Electric Devices TRIZ Cases

A pyrotechnic disconnect powered by the HV battery cuts vehicle circuits during faults, reducing fuse weight while working without LV supply.

By disconnecting testable battery pack subsets while others keep powering the load, isolation faults can be diagnosed without full shutdown.

Module controllers send abnormal signals directly to an external control unit, adding redundant protection without full power cutoff.

When the main vehicle supply fails, discharge-threshold switching keeps backup power on critical loads, then shifts it to limp home loads.

Segmented loop and jumper currents let the detector identify which high voltage connector is not seated, preventing unsafe equipment activation.

Voltage and current sensing drive parallel or series semiconductor switches for fast, resettable overcurrent and overvoltage protection in vehicle circuits.

Modeled and measured battery cell temperatures are compared to flag cooling faults early and help prevent thermal runaway.

A recessed bottom-plate cavity protects high-voltage wiring from crash deformation while preserving compact battery pack layout and energy density.

Backup-powered ECU discharge removes residual capacitor charge after collision or interlock disconnection, reducing electrical hazards during rescue.

A dual-drive contact bridge cuts HV vehicle switching losses and cost while speeding mechanical interruption through coil and resistor-assisted actuation.

Pressure-driven FSR sensing detects early thermal runaway in sealed traction battery housings with lower complexity than multi-sensor setups.

Segmented low-voltage power domains with parallel-charged backup batteries keep autonomous vehicle hardware running during primary power faults.

Layered deformation sensors in the battery protective plate distinguish minor road impacts from critical battery stress, avoiding unnecessary shutdowns.

Pre-start pumping and valve-controlled oil supply cut reducer stirring loss at startup while maintaining motor cooling oil flow.

A layered vehicle controller coordinates fuel cell, battery, and thermal managers to improve powertrain efficiency across multiple energy sources.

When transport mode is requested, the server checks location and charge level, then triggers battery discharge to meet SoC limits safely.

DC/DC converters induce and track bus voltage changes across isolated vehicle low-voltage networks to detect insulation faults without extra monitors.

A weight-driven cutoff disconnects battery modules from the BDU during a collision, reducing short-circuit and electric shock risk.

A controller checks input voltage and stops device power before converter program activation to prevent unintended energization.

A thermal model compares calculated and measured battery cell temperatures to detect cooling faults such as leaks, blockages, and thermal runaway risk.

Separate fire-resistant module housings vent gases and use chimney air gaps to contain thermal runaway and limit heat spread in vehicle battery packs.

A weight-driven cutoff inside the battery pack mechanically breaks module-to-BDU connection during collisions to reduce fire and electric shock risk.

Voltage comparison during inverter pre-charge reveals abnormal DC/DC converter power-off states without extra hardware, cutting wasteful battery drain.

Selects EV battery modules by operating state to limit degradation, guide corrective action, and extend pack service life.

Rest-period OCV and integrated current are combined to correct SOC drift and improve battery SOH estimation despite hysteresis and sensor offset.

Dual coolant loops redirect battery and motor heat-transfer agents to suppress thermal runaway and reuse motor heat for cold-start battery heating.

By adjusting air compressor drive current from battery open-circuit voltage at ignition, this case prevents voltage drop and ignition failure.

Modular battery packs with cooling plates and series-parallel blocks cut pack volume, enable thinner EV packaging, and simplify power scaling.

Cross-battery processing improves railway battery charge and remaining-time monitoring when a charger is switched off or defective.

Heat transfer plates let fewer sensors detect early thermal runaway signals across multiple battery cells for faster mitigation.

When an inactive EV develops a battery isolation fault, the system detects it, transmits the fault signal, and preserves battery protection.

When one battery module enters thermal runaway, healthy modules keep powering the chiller to sustain heat dissipation and limit thermal spread.

Damage-based collection priority uses accident history and storage duration to remove high-risk batteries before ignition or leakage.

A two-level coil drive closes the relay at high voltage, then holds it above return voltage to cut vehicle relay power loss.

Leakage current history and threshold-based averaging reveal railcar arrester deterioration early, helping schedule replacement before power loss grows.

A bracketed battery mount uses vibration isolators and protected housing interfaces to limit shock loads while maintaining moisture ingress protection.

Automatic pin-count and data-based protocol detection lets recyclers connect battery modules from different manufacturers with less setup and cost.

Two DC-DC converters and one low-voltage energy store keep vehicle power available during converter faults while limiting added weight and cost.

Comparing per-cell voltage histories in a series battery pack reveals abnormal cells quickly and accurately without added temperature sensing.

Automatic pin-count and data-based protocol detection lets recyclers connect battery modules from different makers with lower cost and complexity.

Two electric machines on one propeller shaft use different voltages to improve efficiency across speed ranges while adding redundancy.

A threshold-triggered short-circuit path forces fuse interruption on an EV high-voltage bus, preventing over-voltage damage to components.

Real-time stack voltage and current are segmented by current range to calculate weighted SOH and detect fuel cell failure earlier.

Sensor fusion tracks user and nearby e-pallet position and orientation to enable safer control, platoon actions, and fall detection.

A side connecting member restores side-sill-to-battery load paths in CTP EV bodies, limiting deformation and battery damage in side impacts.

An insulating barrier between inverter terminals and the cover blocks contact with residual voltage when the housing is opened.