Electric Devices TRIZ Cases

A fuel cell vehicle controller triggers external acoustic and optical warnings when power generation deteriorates.

C contact switches replace optical MOS-FETs in the detection circuit, reducing device cost while maintaining accurate earth fault detection.

Gas-guide hole and sealing pieces manage internal pressure to prevent electrolyte leakage.

Controller identifies deviating power consuming devices to prevent secondary battery overcharge.

A power electronics module integrates a mechanical locking mechanism with an automatic discharge circuit to protect operators during maintenance.

A seatbelt use promotion system disables entertainment controls when unbuckled.

Double-layer fuselage with solar power reduces torque and weight while maintaining flight stability.

Microprocessor monitors filtered voltage and current values to detect short circuits and low current conditions in electric vehicle driver circuits.

Independent dual motors enable selective four-wheel or two-wheel drive modes, reducing mechanical drag from idle components to extend battery life.

Deformation elements absorb accident energy between battery cells, preventing hazardous substance release during collisions.

Shared control units integrate into keyboards and displays to minimize electrical links in aircraft seats.

A vehicle battery pack holder uses a reinforced frame to stabilize vertical battery stacks.

A computing device detects electricity usage by measuring light intensity changes caused by electrical cable movement during operation.

Safety enhancement fluid shorts auxiliary terminals and cools the power pack, mitigating fire hazards in electric vehicles.

Integrating a traction roller between counter-rotating drive disks reduces device thickness while maintaining magnetic air gaps and torque output.

A locomotive-mounted power battery pack fire safety control system uses inert gas injection to extinguish flames detected by internal sensors.

A circulation pump adjusts coolant flow rate based on calculated heat transfer performance to reduce energy consumption.

A protection device interrupts phase lines to prevent generator voltage feedback from damaging vehicle roll stabilizer actuators.

A battery control unit system uses an internal power source connected in parallel with the main battery to detect switch states via software.

A two-phase stepper motor axle generator produces electrical power and detects frequency signals from railway vehicle axles.

A measuring probe combines a contactless loop with a signal probe to couple RF and electrical signals into a circuit.

A doze-off warning apparatus calculates a danger index from measured eye-open and eye-closure times to trigger an alarm signal.

A controller calculates voltage regulator input current using output power and stored efficiency curve fit coefficients.

Dual power converters switch between DC/AC, AC/DC, and DC/DC modes to reduce apparatus mass while isolating direct-current common unit abnormalities.

A power detector device uses a level hold circuit to maintain a stable reference voltage during low-voltage detection.

Segmented antenna arrays on flying platforms resolve coverage gaps and improve reading accuracy without increasing device complexity.

A rail car brake valve diagnostic system uses transducers and a wireless transmitter to monitor pressure.

A programmable microprocessor shunt emulates removed seat circuitry, suppressing error signals generated by unique identification codes during reconfiguration.

A vehicle battery management system determines recorded data age using a real-time clock for optimized filter initialization.

A battery system compares discharge amount and internal resistance values to determine lithium deposition.

Actuator lever pivots about Y-axis under X-directional force, converting impact energy into Z-directional movement to reduce bulkhead deformation.

Capacitive sensors replace worn seat switches to prevent abrupt machine stops during slight operator movements.

Dual control units monitor battery modules to detect sensor deviations and switch roles for continuous operation.

Asymmetric relay coil parasitic capacitances attenuate electromagnetic interference, resolving battery system reliability issues caused by unwanted emissions.

Segmented switches and sensors isolate specific power faults in dual source systems, preventing unnecessary sub-system shutdowns.

A supercapacitor thermal management system uses dynamic airflow control to maintain optimal temperature ranges.

Strategic insulation placement on high-voltage housings blocks short-circuit risks against adjacent low-voltage systems.

A vehicle battery system evaluates current profiles during pre-charging to identify blown safety fuses without separate voltage measurements.

An intermediate electrode containing titanium compounds improves voltage resistance and energy density in secondary batteries.

Deformable detector records impact history through housing hole, preventing reuse of damaged modules.

A centralized display and measuring unit analyzes characteristic current and voltage profiles to determine individual appliance consumption.

Control modules consolidate motor authority during traction events to resolve load balancing imbalances across power units.

A rotary electric machine uses wave-wound coils with varied slot pitches to generate electromagnetic torque.

Armature chopper adjusts grid resistor resistance via duty cycle control, eliminating non-linear braking forces at low locomotive speeds.

Dynamic path forming optimizes power transfer efficiency while protecting storage devices from voltage stress and conversion losses.

A control circuit pre-secures wireless communications resources for emergency reports upon detecting collision possibilities.

Periodic status request signaling reduces energy consumption tenfold by allowing the mobile ID provider to enter low-power states between transmission cycles.