Electric Devices TRIZ Cases

A battery monitoring system compares actual voltage profiles against modeled expectations to detect safety device activation within the cell.

Ribbed intermediate walls transfer rotor heat to a liquid coolant, solving encapsulation barriers that block direct air cooling.

Module controllers generate an additional information carrier to authenticate measurement data for battery systems.

A sensor system monitors carbon dioxide levels around parked electric vehicles to trigger alarms when concentrations exceed safe thresholds.

Opposite movable contact movement directions prevent simultaneous conduction through both relays during collision acceleration inputs.

A correction unit applies stored coefficients to electrical parameter values in instrument transformers.

Angular gearing overlaps the winding head to reduce axial space requirements.

Positioning the metal circuit case forward of the rear crossmember allows the structural member to shield wiring and absorb impact energy during collisions.

A temperature detection circuit monitors sensor conditions to generate warning signals when thresholds are exceeded.

A paired t-statistical analysis method isolates energy usage changes by matching ambient conditions across time periods.

A serial resistor limits current between constant-voltage power rails, preventing excessive flow and burning while reducing device size.

Magnetic field sensors detect flux from breaker panel lines while neural network models calibrate transfer functions for accurate real power monitoring.

A resampling method converts variable frequency power signals into even angle signals using zero crossing detection.

A disaggregation apparatus correlates stored electrical signatures with overall network parameters to identify active consumers without relying on discrete switching events.

Positioning the hydrogen circulation pump and gas-liquid separator below the fuel cell stack prevents collision damage while gravity assists water drainage.

Integrating phase change material layers with internal heat fins manages thermal energy in battery modules.

Opposed wheel sensors cancel gravity via bridge circuits, ensuring accurate tangential and radial acceleration measurements despite incline variations.

Segmenting the active material into spinel and monoclinic layers resolves adhesion failures while maintaining high reversible capacity.

Transforms phase angle data into complex power to simplify error tuning and enhance measurement redundancy in power systems.

Isolated DC conversion modules prevent damage to low-voltage batteries and devices during short-circuit events or reversed polarity connections.

Dynamic logging intervals in utility monitoring systems reduce storage and bandwidth consumption while preserving detailed event data.

Detecting second-order harmonic components from non-linear cell responses reveals degradation and asymmetry, eliminating premature battery replacement.

Independent monitoring device detects braking effect parameters to trigger fallback measures, reducing friction brake wear and preserving regenerative energy.

A rail vehicle current collector integrates a pressure sensor into its swing arm structure to monitor contact shoe integrity through pneumatic signals.

An input circuit uses a switch unit and dark current reduction unit to establish different current paths for normal and low power modes.

A neural network computes a range compensation coefficient using battery state of charge and discharge cycles for precise electric vehicle estimation.

Offset planetary gear reducers convert high-speed motor output into wheel torque, replacing bulky hydraulic systems that increase powertrain weight.

A material property testing device integrates energy monitoring and environmental detection sensors with a central processing unit for automated data collection.

A vehicle power converter switches between series and parallel connections to manage output voltage levels.

A vehicle energy display scale reproduces a secondary measurement value above the primary reading mark using an electronically controllable screen.

Pre-calculated delay compensation and debounce filtering correct timestamp errors and filter signal noise in sequential event recorders.

Independent calibration coefficients stored in memory allow field sensor replacement without recalibration, resolving maintenance complexity.

A pulse generator supplies dynamic pulses to a coupling capacitor for rapid electric leakage detection in DC power systems.

Magnetic drive systems reduce friction and vibration while foam layers adjust tread contours for terrain adaptability.

Categorizing contactor wear data into bins assigns health levels, eliminating redundant hardware while preventing costly failures.

Local storage buffers vehicle diagnostic data during intermittent connectivity periods, enabling reliable analysis when networks stabilize.

A wheel hub motor integrates a one-way clutch to regulate rotational force transmission between planetary gear stages.

Integrated self-calibration and dual image recorders prevent imposter fraud in ignition interlock devices.

A dual regulated DC-to-DC converter system segments power paths to supply loads and charge batteries with stable voltage.

Integrating a generator into the wheel hub enables direct power generation during vehicle motion.

A vehicle inverter control method manages transistor states to discharge smoothing capacitors after a collision.

Controlled semiconductor switch diverts fault currents in rail vehicle drive systems.

A polyphase electricity meter calculates source and load volt-ampere values using digitally sampled voltage and current signals.

Segmented axial hub motor components detach from the wheel assembly without wheel removal, resolving serviceability constraints that plague integrated designs.

A metering utility measures computational resource utilization by individual applications to enable precise cost allocation.

A parallel power converter injects negative-sequence current to detect islanding operations.

An interlayer coolant duct prevents heat transfer from lower to upper battery stacks, maintaining temperature uniformity.