Fuel Cell Auxillaries TRIZ Cases

Restricting motor torque with a parking latch increases current consumption to heat the stack, reducing cold start time without vehicle drivability loss.

A fuel cell control device adapts a basic characteristic map using correction factors derived from gas volume flow deviations.

A fuel cell vehicle pressure relief mechanism releases internal gas by deforming before the housing structure.

Segmented flow apertures on inclined surfaces create turbulence for reactant diffusion while reducing manufacturing complexity and cost.

A fuel cell control section integrates an I term only during stable operation states to build a reliable learning database for abnormality detection.

Variable fuel gas replacement prevents electrolyte membrane deterioration from mixed gases after extended shutdowns.

A fuel cell operation control device adjusts anode gas pressure pulsation limits to maintain hydrogen supply during power generation.

A method for determining the sealing tightness of a fuel cell stack uses cathode-side shutoff valves to isolate the cathode space and introduce fuel directly.

A fuel cell stop control method limits cathode oxygen consumption during current extraction to manage internal gas levels.

Independent parallel coolers manage heat in stationary fuel cell stacks, ensuring reliable performance when vehicle wind is unavailable.

Diverging inlet and converging outlet channels in a fuel cell flow field plate maintain uniform gas distribution while preventing bubble entrapment.

A fuel cell cooling system adjusts coolant flow based on estimated maximum internal temperature to prevent component deterioration.

A controller stops the circulation pump at low temperatures to prevent mechanical damage from freezing.

A fuel cell system transitions to standby mode by regulating anode pressure while maintaining cathode gas feed.

A solid oxide fuel cell system uses a combustor in the cathode gas supply line to lower open circuit voltage during stop control.

A reducing gas generator produces variable-strength hydrogen and carbon monoxide to protect fuel cell anodes during startup.

A fuel cell system calculates high potential avoidance power using a control device that assesses operating states to prevent unnecessary updates of the integral term.

A fuel cell system manages cathode off-gas circulation using a selector valve and pump to prevent accidental flow into the fuel cell stack.

A selectively conducting anode component manages internal impedance during gas transitions in solid polymer fuel cells.

A water atomization apparatus uses a pressurized reservoir to prevent droplet formation in fuel cell stacks, ensuring reliable humidification.

A fuel cell system actively adjusts internal humidity based on operating voltage to protect the cathode catalyst layer.

Parallel solid-state switches shunt current during mechanical contactor opening to limit voltage, reducing electrical arcing and contact degradation.

Localized heating from an energizable coating breaks ice bonds on fuel cell surfaces, enabling component movement without external heaters.

An AC absorption unit enables direct current flow for fuel cell stack fault diagnosis without complex power converters.

A battery pack design immerses modules in a low flash point coolant sealed by an immiscible barrier liquid to rapidly dissipate heat.

Cycles electrical power between high and low levels to rapidly warm a fuel cell stack, eliminating external heaters and reducing equipment complexity.

Gravity-driven dummy cell channels divert liquid water away from power generation cells, preventing flooding and maintaining reaction gas supply.

An adaptive control method refines injector flow set-points using feed-forward bias and transient pressure corrections.

Integrated plate protrusions prevent terminal displacement under vibration, maintaining accurate voltage measurement.

A fuel cell system regulates oxidation gas flow using a bypass device to match power output with external load demands.

Dynamic purge valve control maintains constant impurities partial pressure during load fluctuations, reducing hydrogen loss and stabilizing operation.

A compensating circuit applies counter-voltages to fuel cell electrodes during operational transitions.

Tapered channel floors redirect bubbles away from intersections, preventing plate drying and overheating while maintaining consistent cooling.

A fuel cell standby controller operates the air compressor at minimum speed while closing the cathode valve to maintain system readiness.

An anode fan controls fluid flow during shutdown to maintain a hydrogen environment, preventing carbon corrosion caused by slow hydrogen-air intrusion rates.

A fuel cell system adjusts membrane electrode assembly water content using a dedicated adjusting device.

Lead cathodes replace platinum to lower manufacturing costs while degrading groundwater contaminants.

A fuel cell cooling system manages coolant flow ratios to maintain optimal thermal conditions.

Driving dry gas through the cathode flow field lowers membrane humidity, suppressing catalyst dissolution and corrosion during start-up.

Oxygen supply unit directs gas through a bypass channel to warm the main hydrogen path before primary flow begins.

Dynamic threshold adjustment prevents premature safety stops during high power demand, extending fuel cell stack lifespan.

A fuel cell system detects unstable electricity generation to prohibit idle stop and maintain stable operation.

Pointed rib sealing members reduce clamping load and sealing space while maintaining gas tightness in polymer electrolyte fuel cells.

A fuel cell system determiner uses compressor power and pressure data to identify operational faults.

Controller calculates average energy-to-hydrogen ratio during charging to minimize hydrogen consumption while meeting vehicle power demands.

A control device monitors voltage changes across a DC/DC converter to detect contactor closing failures in fuel cell systems.

A fuel cell power supply calculates internal resistance values to determine deterioration levels using controlled current adjustments.

Dynamic switching between unequal fuel cells reduces catalyst elution and extends operational life under varying power demands.

A controller monitors existing current and voltage sensors to detect short circuits in fuel cell systems.

A combined purge valve routes anode fluid to the cathode inlet, enabling efficient hydrogen recirculation within the fuel cell system.