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Fuel Cell Vehicle

Fuel Cell Vehicle-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Method and system for diagnosing state of fuel cell
Hyundai Motor Company
June 15, 2017 - N°20170170502

A method and system for diagnosing a state of fuel cell are provided. The system includes a signal measurement unit that has a high pass filter with a predetermined cut-off frequency and a voltage measurement circuit, and that measures a first ac voltage to measure the fuel cell state diagnosis signal and a noise measurement unit including a band pass ...
Method for controlling startup of fuel cell vehicle
Hyundai Motor Company
June 15, 2017 - N°20170170496

A method for controlling startup of a fuel cell vehicle is provided. The disclosed method includes detecting generation of a startup command from a vehicle and supplying hydrogen to a fuel cell by opening a hydrogen valve. Additionally, the method includes detecting whether a fuel cell voltage has increased after supply of hydrogen, and a first startup of consuming generated ...
Control method of cooling water pump of fuel cell vehicle
Kia Motors Corporation
June 15, 2017 - N°20170166082

A control method of a cooling water pump of fuel cell vehicle is provided. The method includes comparing a derived temperature value, including a cooling water temperature of a fuel cell or an estimated temperature of a stack of the fuel cell, with predetermined temperature criteria and comparing a required output value of the stack of the fuel cell with ...
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Method for controlling emergency driving of fuel cell vehicle and apparatus for the same
Hyundai Motor Company
June 08, 2017 - N°20170162924

A method for controlling emergency driving of a fuel cell vehicle, in which a motor is used as a main driving source, includes, by a controller, determining whether a stack voltage monitoring (svm) apparatus for measuring a stack voltage of a fuel cell is in a failure state; estimating a voltage of the fuel cell using a dc/dc converter ...
Method for adjusting output of fuel cell system
Hyundai Motor Company
June 08, 2017 - N°20170162885

A method for adjusting an output of a fuel cell system is capable of estimating a dry state of a fuel cell vehicle by comparing air flow rates, and adjusting a maximum output applicable to the fuel cell vehicle, thus enabling the fuel cell vehicle to be stably driven. The method for adjusting the output of the fuel cell system ...
Fuel cell vehicle
Suzuki Motor Corporation
April 27, 2017 - N°20170113566

A fuel cell vehicle provided with an exhaust duct structure is capable of reliably diluting hydrogen flowing into an exhaust duct. The fuel cell vehicle includes a vehicle body, an air-cooled fuel cell mounted in the vehicle body to generate power by allowing hydrogen gas and oxygen in air to react with each other, an exhaust duct through which exhaust ...
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Fuel Cell Vehicle Patent Applications
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Fuel cell vehicle
Honda Motor Co., Ltd.
April 27, 2017 - N°20170113531

A stack case includes a lower surface and at least one through hole. The lower surface is at a bottom of the stack case in a vehicle height direction of the vehicle. The at least one through hole opens to an inside of the stack case. An outer opening opens to an outside of a vehicle. The at least one ...
Cooling system of fuel cell vehicle
Hyundai Motor Company
April 20, 2017 - N°20170110747

A cooling system of a fuel cell vehicle is provided. The cooling system includes a stack in which a plurality of fuel cells are laminated and a manifold in which the stack is disposed, and inside of which cooling water flows to exchange heat with the stack. Additionally, a flow control valve is installed in the manifold, and is opened ...
Air intake structure and fuel cell vehicle
Honda Motor Co., Ltd.
April 20, 2017 - N°20170110744

An air intake structure for a fuel cell vehicle includes an air inlet port, an air passage, and a water separation passage. The air inlet port is provided in a front space of the fuel cell vehicle in which a fuel cell is accommodated. The air passage is connected to the air inlet port such that air flows from the ...
Method for managing ion filter of fuel cell vehicle
Hyundai Motor Company
April 13, 2017 - N°20170104229

A method for managing an ion filter of a fuel cell vehicle includes measuring a differential pressure between ends of the ion filter, calculating a change of the differential pressure according to a coolant flow at the ion filter, and determining leakage of an ion resin or a replacement time of a cartridge using the measured differential pressure or the ...
Fuel cell vehicle
Hyundai Motor Company
April 13, 2017 - N°20170101031

A fuel cell vehicle 1 comprises: a radiator 11 provided in a front room 10; and a fuel cell assembly 12 provided in a vehicle rear direction with respect to the radiator 11 in the front room 10. The fuel cell assembly 12 comprises: an assembly frame 60; and a fuel cell apparatus group 61 that includes a fuel cell 70 and an auxiliary apparatus, the fuel cell apparatus group 61 ...
Relative humidity estimators for fuel cell stack ports
Ford Global Technologies, Llc
March 30, 2017 - N°20170092972

A water management method for a fuel cell stack (fcs) is provided. The method may include outputting via a controller an fcs anode port estimated relative humidity value based on consumption of reactants and generation of products in the fcs and adjusting a humidification control strategy based on the value. The outputting may be in response to occurrence of a ...
Fuel cell stack with multilayer type collector plate
Kia Motors Corporation
March 30, 2017 - N°20170092967

A fuel cell stack is provided which manually increases the temperature of cells arranged in the vicinity of an end plate of the stack to improve starting performance of a fuel cell vehicle at temperatures below zero and driving performance thereof at low temperatures. The fuel cell stack realizes rapid thawing and heating functions in response to freezing of end ...
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Fuel cell system and fuel cell vehicle
Toyota Jidosha Kabushiki Kaisha
March 09, 2017 - N°20170069920

The fuel cell system is provided with a radiator, a first flow passage in which refrigerant flows from a fuel cell stack towards a radiator, a second flow passage in which refrigerant flows from the radiator towards a fuel cell stack, a bypass flow passage that connects the radiator with a position in the second flow passage at which refrigerant ...
Fuel cell vehicle
Toyota Jidosha Kabushiki Kaisha
March 09, 2017 - N°20170066479

A fuel cell vehicle comprises a front room; a vehicle interior; a fuel cell in the front room; a center tunnel; a tank that is at least partly placed in the center tunnel and stores a gas to be supplied to the fuel cell; and a dashboard that separates the front room from the vehicle interior, wherein the fuel cell ...
Fuel cell system control method and fuel cell vehicle
Honda Motor Co., Ltd.
March 09, 2017 - N°20170066337

In a control method for a fuel cell system, a fuel cell side converter that is provided between a fuel cell and an inverter is controlled to step up a fuel cell voltage to an inverter terminal voltage supplied to the inverter. A margin voltage is set to guarantee step-up operation or interruption of operation of the fuel cell side ...
Thermal management system of fuel cell vehicle
Hyundai Motor Company
March 02, 2017 - N°20170062846

A thermal management system of a fuel cell vehicle includes a cold start loop which heats a coolant that flows through a fuel cell during a cold start of the fuel cell, and a cooling loop which moves a coolant that cools the fuel cell.
Fuel cell vehicle
Honda Motor Co., Ltd.
March 02, 2017 - N°20170057339

In a fuel cell vehicle, a stack case containing a fuel cell stack is mounted in a front box. Exhaust ducts are connected to openings formed in an upper panel of the stack case. A right exhaust duct connected to the exhaust ducts is opened to a right fender part, and a left exhaust duct connected to the exhaust ducts ...
Method for synchronizing voltage of fuel cell vehicle
Hyundai Motor Company
February 02, 2017 - N°20170033380

A method for synchronizing voltages of a fuel cell vehicle may synchronize the voltages of high voltage components in real time regardless of the completion of vehicle start-up in order to improve performance and control precision within a full range of operable voltages. The method includes a default voltage synchronization step in which, when the fuel cell vehicle starts, the ...
Device and method for controlling starting fuel cell vehicle
Hyundai Motor Company
January 12, 2017 - N°20170012311

A method for controlling starting of a fuel cell vehicle is provided. The method includes measuring a time interval for stopping of a fuel cell and a cell average voltage of the fuel cell when the fuel cell vehicle stops. A starting mode is then switched to a catalyst activating mode when the time interval exceeds a predetermined time or ...
Apparatus and method for detecting leakage in hydrogen tank of hydrogen fuel cell vehicle
Hyundai Motor Company
January 12, 2017 - N°20170010178

An apparatus and a method for detecting leakage in a hydrogen tank of a hydrogen fuel cell vehicle are provided. Particularly, leakage is detected due to failure of an airtight seal of a solenoid valve in a hydrogen tank based on a change of the sensing value of a high pressure sensor which represents a hydrogen tank pressure during a ...
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