Motive System Fuel Cells TRIZ Cases

Nested resin covers and composite materials prevent salt water corrosion in fuel cell end plates, ensuring reliable seal pressure under thermal cycling.

Segmented mesh and filter members shield the exposed detection terminal from foreign matter intrusion while maintaining ventilation.

An integrated heating element in the clamping member compensates for thermal expansion, stabilizing surface pressure against stack temperature fluctuations.

A controller heats fuel cell coolant to protect the proton exchange membrane from freezing damage during shutdown.

A fuel cell control method adjusts output current to manage heat generation during low-temperature warmup.

Asymmetric reverse phase wavy patterns with different pitches disperse high surface pressure, preventing local increases from assembly errors.

Controller stops current sweep when actual cathode pressure exceeds estimated value, suppressing hydrogen generation during shutdown.

Monitoring accessory temperatures alongside the fuel cell stack prevents freezing during startup while reducing unnecessary fuel consumption.

Merging separate air circuits into a single shared system reduces aircraft fuel cell weight, complexity, and manufacturing costs.

Local quality principles apply varying compression forces to prevent electrolyte damage while ensuring reliable electrical contact.

A fuel cell system calculates stable-period voltage differences to detect local anode gas shortages and adjusts gas supply accordingly.

A fuel cell system manages stack voltage to clean catalyst surfaces and remove oxide layers.

A fuel cell detection system judges impedance usability to calculate internal state quantities accurately.

A fuel cell controller alternates power between assemblies to reduce structural deformation and impedance-related degradation.

A fuel cell stack upper panel integrates a flow passage to vent hydrogen gas from the casing interior to the exterior environment.

A controller applies voltage to move hydrogen from the cathode through an electrolyte membrane before operation.

A fuel cell system estimates start-up duration based on internal ice content and temperature data.

A fuel cell control unit uses voltage sensor data to estimate exhaust hydrogen concentration during warm-up operations.

Separator ribs feature end openings that reduce rigidity, allowing bending to maintain uniform bearing pressure on the sealing portion.

An integrated humidifier and water separator unit decelerates exhaust gas flow through an expanded outflow area to remove liquid water.

A fuel cell system uses a humidity reservoir and switching valve to manage gas flow.

A fuel cell purge control method uses hydrogen supply valve duty cycle changes to confirm purge performance without extra sensors.

A control unit monitors oxygen consumption and air exchange rates to manage fuel cell stack operations.

Segmented seal members housed in plate grooves prevent reactive gas leakage while reducing stress concentrations at connection points.

Segmented bipolar plates route reactants to create dedicated moisture transport pathways, preventing membrane drying at high temperatures.

A fuel cell control unit detects valve abnormalities to initiate fail-safe power generation.

A control unit adjusts pressure adjusting and bypass valve openings to keep the turbo compressor operating point outside the surging region.

A fuel cell humidifier uses a permeable membrane to evaporate stored liquid water for reactant gas.

Segmented frame sheets in a membrane electrode assembly distribute differential pressure between anode and cathode gases, preventing resin deformation.

ECU estimates multi-point pressure using single sensor data and flow resistance values to reduce measurement discrepancies without adding physical sensors.

A single variable-speed pump and 3-way valves replace dedicated control pumps to reduce system complexity while maintaining precise temperature control.

An insulated seal assembly on the bipolar plate supply area eliminates flexible frames, resolving thermal expansion and misalignment issues in fuel cell stacks.

A fuel cell purge estimation system calculates differential pressure across a purge valve to determine gas diffusion speed for accurate hydrogen concentration control.

Lateral coolant flow channels preserve end plate strength near manifold connections while enabling flexible device layout.

A turbine control unit adjusts flow passage openings to recover cathode off-gas energy while preventing freezing.

A decentralized controller manages hydrogen fuel cell devices by dynamically redistributing power loads among interconnected stacks.

Monitoring discharged water volume allows accurate humidity determination despite degraded humidification performance over time.

An auxiliary device case integrates an end plate part to apply tightening loads directly to the fuel cell stack.

A fuel cell control system estimates effective catalytic amounts to optimize hydrogen and air supply pressures.

An adaptive purge system prevents excessive drying by dynamically adjusting water drainage amounts, maintaining power generation reliability.

Protruding support structure anchors the resin film inner peripheral portion and cathode outer edge within a power generation cell membrane electrode assembly.

A fuel cell system adjusts cathode gas pressure via a valve to increase flow rate from the turbo compressor.

Heating portion warms purge valve to prevent water freezing, while controller adjusts discharge power based on heating status.

A fuel cell control device adjusts hydrogen supply valve opening based on detected anode pressure to optimize gas delivery.

A fuel cell controller estimates calorific value using segmented cell voltage data to adjust coolant pump flow rates.

Lowermost rib positioning near the inlet resolves uneven cooling caused by higher outlet placement in fuel cell end plates.

A fuel cell system routes coolant through a dedicated heater line to raise temperature before stack circulation.

A three-port differential pressure switch controls fuel cell recirculation by detecting pressure ratios to activate the blower or pump.

Dynamic purge mode switching balances membrane hydration against ice blockage risks, reducing shutdown time while preserving proton conduction durability.