Electric Devices TRIZ Cases

Replacing diodes with low-resistance MOSFETs eliminates voltage drops while surge protection elements safeguard internal circuits from damage.

Differentiated bushing dimensions prevent misassembly of positive and negative terminals, ensuring reliable electrical connections.

Force sensing actuated caster arms counterbalance jolting forces during acceleration and deceleration to maintain wheelchair stability.

A distance to empty estimation system compensates for transient energy loss factors during vehicle warm-up cycles.

A vehicle wireless system requests server disconnection to trigger a callback verification mechanism.

A segmented rotor wheel drive mechanism uses permanent magnets in only one block to reduce weight and cost while maintaining magnetic coupling.

A motor programming tool with a handle-mounted PCB and terminal connecting assemblies provides secure electrical connections.

A jet watercraft control unit processes switch actuation data to determine rescue necessity.

A vehicle system detects rail defects by measuring wheel creep differences between axles and wheels during travel.

Rotatable drive member conducts heat from electric motor to atmosphere, reducing device volume by eliminating separate transmission components.

A fuel cell system adjusts DC/DC converter phases to prevent overcurrent during rapid voltage changes.

An extended Kalman filter estimates battery state of charge using an equivalent circuit model.

A controller circuit manages an array of electronic fuses by categorizing their health based on load current and temperature.

A battery controller estimates current variation between parallel cells using temperature indices derived from heat generation and cooling effects.

A wheel hub alternator system uses a spacer and brake caliper rotation stop to generate electrical energy from axle rotation.

A detachable mount isolates the fuel cell stack from front impact loads, preventing structural damage to critical high voltage components.

Starter motor windings limit supercapacitor charging current, eliminating expensive power resistors and reducing system complexity.

Extension members guide the suspension rearward during frontal collisions, preventing high voltage cable entrapment between the suspension and battery unit.

A hardware battery protection circuit uses a comparator and switch to block current flow based on voltage thresholds.

A vehicle-mounted inspection system calculates track irregularity using wheel set angular displacements and forward-and-backward-direction forces.

Unified mounting interfaces enable swapping single or multiple motor units, reducing transmission weight and complexity while maintaining power transmission.

A cell contacting system integrates connectors, degassing channels, and temperature control electronics into a single modular structure.

A hybrid vehicle electric motor system determines rotor temperature by measuring short-circuit current during operation.

An integrated venting system extracts thermal runaway gases through a dedicated port and ducted guide to prevent combustion risks.

Liquid-impermeable sheaths prevent coolant leaks and condensate damage while maintaining system reliability.

A capacitor charges before switch operation to detect short-circuit faults via electric potential changes.

A control algorithm calculates differential compensation capacitance and switches capacitors incrementally to correct power factor.

A vehicle power supply device synchronizes startup sequences across multiple circuits to prevent unstable output voltages during initial operation.

A DC bias applied to split-core transformer halves eliminates zero-force periods in AC cycles, reducing vibration noise and simplifying mechanical assembly.

A deceleration evaluation apparatus estimates vehicle speed from measured deceleration and compares it to actual speed.

A battery-powered on-board device detects electromagnetic valve energization to retain train position data when vehicle power is off.

A purchased power management device stores electricity in a battery during low demand periods to output power when grid demand peaks.

Floor cross extension absorbs side collision energy via plastic deformation, maintaining battery impact efficiency without increasing pack withstand strength.

A luminaire controller integrates a metering circuit to measure voltage and current parameters for individual street lighting units.

Scheduled transmission intervals reduce continuous power draw, extending battery life and lowering maintenance costs for remote utility installations.

A controller monitors operator alertness by measuring response time to system alerts during powered operation.

A determination apparatus selects dynamic criteria based on longitudinal acceleration to identify erroneous accelerator applications.

Onboard processors detect wheel slip and reduce velocity commands to prevent spacing violations.

A recharging controller monitors auxiliary battery state of charge before vehicle software updates.

A capacitive coupling circuit transmits enablement signals through a user to detect zone inputs for vehicle door locking.

A vehicle display shows a capacity retention ratio calculated against a standardized reference value set after manufacture.

A power-on detector calculates the voltage rise slope to determine stabilization time.

A battery management system uses a switching voltage divider to measure leakage path resistance between the high-voltage battery and vehicle chassis.

A rotational speed boosting mechanism accelerates an energy storing rotor body to increase kinetic energy storage capacity within a compact electric power unit.

A vehicle battery management system switches to a shutdown mode upon ignition off to limit current draw and preserve charge.

A discharge circuit evaluates voltage dropping across terminals to dynamically adjust current flow for reliable capacitor discharge.

Predicts frictional element heat generation to modify shift modes or prohibit shifts, resolving drivability trade-offs from timer-based controls.

Segmenting the inverter from the fuel cell system enables flexible AC power supply while nesting protective components to reduce spatial occupation.

Controller triggers horn to confirm high voltage discharge, eliminating manual technician checks and reducing maintenance time.