Electric Devices TRIZ Cases

Region-specific alloys in rotor laminations cut flux leakage at magnet bridges while improving torque density, core loss, and strength.

Pre-estimating backup low-voltage power during vehicle OFF time avoids startup delay while confirming emergency load readiness.

A controlled load breaks battery steady-state so current changes can reveal switching device position and improve availability checks.

Adaptive battery estimation updates a function approximator from measured voltage, current, and temperature to track capacity and impedance over time.

An auxiliary circuit checks capacitor voltage drop before discharge, preventing resistor overheating and enabling smaller EV discharge resistors.

By de-energizing the complementary half-bridge switch first, this case limits short-circuit overvoltage and energy dissipation in inverter power modules.

Wire bonds are tuned to carry normal cell current and melt at fault thresholds, isolating failed cells to limit cascade and short-circuit damage.

Vent openings and aligned passages let a drum brake adapter house, cool, and connect a wheel-end motor without complicating axle assembly.

Wireless operator input, sensor-based leveling, and electric steering let one person control a road paver with better visibility and precision.

Two series coupling capacitors with periodic AC excitation suppress no-load leakage current and keep vehicle insulation fault detection accurate.

Lower-strength rear extension members and overlapping side structures absorb rear crash energy before it reaches the floor-mounted battery.

Battery sensing and flight-mode reserve calculation produce timely remaining-energy data for safer electric aircraft decisions.

An embedded hose interface in a sealed underbody air chamber delivers stable pressure signals for traction battery impact detection in tight space.

Multiple VCUs and brake controllers create redundant braking paths, while arbitration logic selects one command set to keep autonomous vehicles fail-operational.

An energy dissipater using an air compressor absorbs surplus power during load changes, protecting batteries and stabilizing electric power systems.

Electromagnetic eddy-current braking replaces heavy hydraulic brake pads while also generating power for aircraft taxiing and storage.

A passive branch triggers an active discharge path to speed intermediate-circuit capacitor discharge and balance multi-level inverter voltages.

Dedicated vent channels and compartment covers isolate failing aircraft battery cells, releasing runaway gases without igniting neighbors.

A controller separates high- and low-voltage load shutdown during maintenance to prevent electric shock and unintended vehicle operation.

Multiple HV battery controllers wait for all monitoring cycles to finish before standby, preventing dark current and vehicle battery discharge.

Multiple network links and an ICU detect CAN and hardware faults early, enabling autonomous driving control handover before control is lost.

Automatic thermosensitive covers open battery compartments during thermal runaway, enabling faster cooling access and safer de-energization.

A virtual damping resistor in the inverter control module maintains light-load stability while cutting power loss, heat, and hardware cost.

Using washer liquid as the shared coolant loop cuts vehicle cooling space, avoids separate reserve tanks, and simplifies fluid replacement.

Carboxylated carbon-coated niobium titanium oxide improves conductivity and metal-ion adsorption for fast charging, cycle life, and energy density.

Different fuse current-time curves create sequential disconnection in a high-voltage battery cluster, reducing current and voltage impulses.

A readback circuit checks train relay output signals before departure, catching output unit faults early without added control complexity.

Liquid dielectric cooling and flooding isolate high-energy rail batteries, controlling heat buildup and suppressing fire near the driver's cabin.

A last-open contactor with arc-reducing circuitry absorbs residual energy and inductance to limit arc wear in parallel battery packs.

Replacing relays with MOSFET switching in a vehicle low-voltage power circuit cuts volume, vibration, and noise while improving connection reliability.

AI-based battery valuation links BEV residual capacity to financial risk control, enabling safer reuse and less battery waste.

An interlock loop and mating plug connector keep disconnected crawler drive lines safe during carrier removal and partial machine operation.

Residual fuel cell energy is discharged through the traction motor stator via the DC-DC converter, cutting bulky electromechanical parts.

Navigation-guided battery precharge and power buffering reduce fuel cell wear, support hill loads, and avoid urban charging noise.

Emergency messages trigger the right vehicle manual sections automatically, cutting search time and guiding users through critical functions.

A railcar sub-system rebuilds event data structures from parameter files, avoiding software updates when monitored status items change.

Separate radiator zones and cooling loops let EV batteries and drivetrain components meet different heat loads with lower cooling energy.

Electrical current signatures reveal friction and wear in vehicle motor couplings early, helping prevent seizure, downtime, and unsafe failures.

Real-time Y-capacitance energy checks use capacitance and bus voltage to trigger discharge or shutdown before electric shock risk rises.

Air lines routed inside a chassis fairing and aligned by a torsion bar protect tire inflation hardware from debris while reducing drag.

A shielded, battery-powered signal generator with load simulation reduces external interference for accurate, reproducible coupling loss measurement.

Switched resistor paths create distinct voltage signals to detect open-circuit, short-power, and short-ground faults in high-voltage components.

A metal insert takes riveting loads instead of plastic, improving pyrotechnic switch sealing, pressure resistance, and assembly.

Forced airflow and dedicated vent paths extract heat and gases from a failing battery module to prevent propagation and protect occupant spaces.

Predictive battery current limiting helps protect vehicle batteries while avoiding unnecessary restrictions on electrical functions.

A partitioned casing anchors the signal cable near the through hole, enabling visual wiring checks and preventing pinching during assembly.

A weakened hollow door step buckles upward in side impacts to deflect loads away from the battery housing and protect floor-mounted batteries.

Monitored temperature and current signals switch battery heating pad operation to prevent overheating without making the pack unusable.

Mirroring off-state voltage stress across power and sense transistors preserves current sensing accuracy as aging shifts device parameters.

Cell-level graph neural networks capture battery pack interactions and aging variation to improve EV state-of-health estimation accuracy.