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Fuel Cell Vehicle patents

      

This page is updated frequently with new Fuel Cell Vehicle-related patent applications.




 Device and  controlling starting fuel cell vehicle patent thumbnailDevice and controlling starting fuel cell vehicle
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.
Hyundai Motor Company


 Apparatus and  detecting leakage in hydrogen tank of hydrogen fuel cell vehicle patent thumbnailApparatus and detecting leakage in hydrogen tank of hydrogen fuel cell vehicle
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 process of performing a wakeup operation at the time of key-off of a vehicle..
Hyundai Motor Company


 Driving control method and system of fuel cell vehicle patent thumbnailDriving control method and system of fuel cell vehicle
A driving control method and system for a fuel cell vehicle are provided. The driving control method includes monitoring, by a vehicle controller, information regarding vehicle conditions and entering a minimum driving mode when the monitored vehicle conditions meet minimum-driving-mode entry conditions.
Hyundai Motor Company


 Method for controlling fuel cell vehicle, and fuel cell vehicle patent thumbnailMethod for controlling fuel cell vehicle, and fuel cell vehicle
A method for controlling a fuel cell vehicle includes: calculating total system power for the fuel cell vehicle; calculating power accumulation device target power; calculating fuel cell target power, the power accumulation device target power and the fuel cell target power satisfying the total system power; controlling a first converter to regulate power of a power accumulation device based on the power accumulation device target power, the first converter being provided between the power accumulation device and a motor driver, the motor driver being to drive a motor to generate travelling power; and controlling a second converter to regulate power generated by the fuel cell based on the fuel cell target power, the second converter being provided between the fuel cell and the motor driver.. .
Honda Motor Co., Ltd.


 Fuel cell vehicle patent thumbnailFuel cell vehicle
A switch is to switch a connection mode between a serial mode and a parallel mode. In the serial mode, a fuel cell and a power storage device are connected in series and connected to a travelling apparatus in parallel.
Honda Motor Co., Ltd.


 Power net system of fuel cell vehicle and  controlling the same patent thumbnailPower net system of fuel cell vehicle and controlling the same
A power net system of a fuel cell vehicle is provided. The power net system includes a fuel cell and a first switching unit that is configured to form and block an electrical connection between an output terminal of the fuel cell and a main bus.
Hyundai Motor Company


 Power net system of fuel cell vehicle and  controlling the same patent thumbnailPower net system of fuel cell vehicle and controlling the same
A power net system of a fuel cell vehicle is provided. The power net system includes a fuel cell and a high-voltage battery unit connected in parallel via a main bus and a first switching unit that is configured to form and block an electrical connection between an output terminal of the fuel cell and the main bus.
Hyundai Motor Company


 Method for cold-start of fuel cell stack patent thumbnailMethod for cold-start of fuel cell stack
Methods and systems are provided for cold-start of fuel cell stack in fuel cell vehicles. In one example, a method may include in response to cold-start of fuel cell vehicle, limiting the load drawn from the fuel cell stack.
Automotive Fuel Cell Cooperation, Corp.


 Safety  portable power generation of fuel cell vehicle and operation method thereof patent thumbnailSafety portable power generation of fuel cell vehicle and operation method thereof
A safety apparatus for portable power generation of a fuel cell vehicle and an operation method thereof are provided. The safety apparatus includes a fuel cell that supplies power required for driving a motor of the fuel cell vehicle and a battery used as an auxiliary power source of the fuel cell.
Hyundai Motor Company


 At-home fuel cell vehicle refueling system and method patent thumbnailAt-home fuel cell vehicle refueling system and method
A fuel cell vehicle on-board system and method for at-home refueling of the fuel cell vehicle. When home fueling is desired, an electric source is plugged into the vehicle and an on-board reversible fuel cell, in an electrolyzer mode, converts stored water to hydrogen gas and transfers it to an on-board pressurized storage tank..

Method for calculating hydrogen consumption amount of fuel cell vehicle

A method for calculating an amount of hydrogen consumed by a fuel cell vehicle, in order to improve the accuracy of fuel efficiency calculation when the fuel cell vehicle travels under real-world conditions, includes: calculating a hydrogen consumption amount via integration of stack current generated in a fuel cell stack, calculating an amount of unreacted hydrogen purged from the fuel cell stack, and calculating a final hydrogen consumption amount by adding the purged amount of hydrogen to the hydrogen consumption amount calculated via the stack current integration.. .
Hyundai Motor Company

Operation control fuel cell system

An operation control method of a fuel cell system is provided that increases the output of a fuel cell stack by detecting and overcoming the cause of a performance limit when the stack reaches the performance limit during high-altitude operation of a fuel cell vehicle, thereby achieving higher stack performance and vehicle power performance. The method includes determining whether an operation state of the stack corresponds to a predetermined condition in which a stack output limit occurs by determining current operation state information of the stack.
Hyundai Motor Company

Fuel cell purging method

A fuel cell purging method is provided to effectively prevent fuel cell deterioration and degradation of durability of the fuel cell by performing hydrogen purging at a point in time at which negative pressure of an anode peaks after a fuel cell vehicle is stopped. The fuel cell purging method includes stopping the driving of a fuel cell vehicle and continuously measuring pressure of an anode of a fuel cell after the fuel cell vehicle is stopped.
Hyundai Motor Company

Fuel cell vehicle

A fuel cell vehicle includes an accelerating state detector, an electric resistance value detector, a current value detector and a controller. The controller is configured to determine a target current value output from the fuel cell stack based on a requested output value of the fuel cell stack in accordance with the detected accelerating state, determine a current increase rate based on a difference between the determined target current value and the detected current value, and correct the determined target current value in such a manner as to reduce the determined target current value in a case where a value of a function that includes the determined target current value, the determined current increase rate, and the detected electric resistance value becomes larger than a predetermined threshold..
Toyota Jidosha Kabushiki Kaisha

Drain tube device of muffler for fuel cell vehicle

A drain tube device of a muffler for a fuel cell vehicle includes: the muffler included in an exhaust pipe of the fuel cell vehicle and having a front end part to which blower air is introduced and a rear end part from which the blower air is discharged; a drain tube having a drain hole disposed between the front end part and the rear end part of the muffler to downwardly discharge the blower air; and a hole cover part mounted in the drain hole to block a hydrogen discharge of the blower air and discharge only condensate water. The drain tube device maintains functioning of the muffler while discharging the condensate water and smoothing a flow of the blower air through the hole cover part mounted in the drain hole upon starting the vehicle..
Hyundai Motor Company

Apparatus and controlling purge valve of fuel cell vehicle

An apparatus and method for controlling a purge valve of a fuel cell vehicle are provided to reduce a consumption amount of hydrogen and improve fuel efficiency. In particular, whether oxygen concentration in a channel of an anode of a fuel cell stack exceeds a reference value is estimated while restarting the vehicle after the vehicle is parked.
Hyundai Motor Company

Method and system for maintaining stability of system of fuel cell vehicle

A method and system for maintaining stability of a system of a fuel cell vehicle are provided to prevent malfunction of sensors of a low voltage dc-dc converter and the respective controllers. A start timing of a fault diagnosis for the low voltage dc-dc converter and the respective controllers is determined and a deviation between voltages of the sensors of the low voltage dc-dc converter and the respective controllers is detected to determine whether the low voltage dc-dc converter and the respective controllers fail..
Hyundai Motor Company

System and controlling emergency driving for fuel cell vehicle

A system and a method are provided for controlling emergency driving of a fuel cell vehicle. The system includes a cutoff relay that connects or cuts off a current flow between a chopper and a supercapacitor.
Hyundai Motor Company

Saddle-ridden type fuel cell vehicle

There is provided a saddle-ridden type fuel cell vehicle. The fuel cell vehicle includes: a body frame; a steerable wheel; a driving wheel; a motor; a fuel cell; a fuel tank; and a tank valve.
Suzuki Motor Corporation

Fuel cell vehicle and control method thereof

In a vehicle, a first gas sensor detects a hydrogen gas concentration of a vehicle interior front zone. Air-conditioning corresponding to an operation of a suction air switching button or the like is performed until the hydrogen gas concentration of the vehicle interior front zone reaches a predetermined second reference concentration, and any one of interior air mode switching control of an interior/exterior air switching mechanism and stop control of a blower is performed regardless of the operation of the suction air switching button or the like when the hydrogen gas concentration reaches the second predetermined reference concentration..
Toyota Jidosha Kabushiki Kaisha

Piping member for fuel cell and fuel cell vehicle equipped therewith

There is provided a piping member that is used for a moving body equipped with a fuel cell and that is configured to suppress potential troubles caused by drainage water of the fuel cell. A fuel cell vehicle 1 includes an exhaust pipe 100 that is a piping member configured to discharge drainage water and exhaust gas of a fuel cell 10.
Toyota Jidosha Kabushiki Kaisha

Moving body equipped with fuel cell

There is provided a technique of improving an intake structure that takes in the outside air in a fuel cell vehicle. A fuel cell vehicle 10 includes first and second grilles 11 and 12 that are configured to be open forward and take in the outside air.
Toyota Jidosha Kabushiki Kaisha

Fuel cell vehicle and mounting fuel cell stack on vehicle (as amended)

A fuel cell vehicle which a fuel cell stack is mounted on comprises a stack case that is configured to place the fuel cell stack therein; mounts that are configured to fix the stack case to a vehicle body; ribs, each being provided to be extended from a position adjacent to the mount across an upper surface of the stack case; and a damping member that is provided between adjacent ribs on the upper surface of the stack case. The damping member is a material formed by applying an aluminum sheet on butyl rubber.
Toyota Jidosha Kabushiki Kaisha

Ion filter lifetime perception device for fuel cell vehicle

An ion filter lifetime perception device for a fuel cell vehicle is provided that detects a replacement lifetime of a cartridge of a fuel cell ion filter. The ion filter lifetime perception device includes a mesh tube body that is mounted in an ion filter and contains an ion resin filed therein.
Kia Motors Corporation

Power net system for fuel cell vehicle and controlling the same

A power net system for a fuel cell vehicle includes: a diode having a first end connected to an output stage of a fuel cell stack; a fuel cell load device branched and connected between the output stage of the fuel cell stack and the diode; a first relay positioned between the output stage of the fuel cell stack and the fuel cell load device and configured to connect or separate the output stage of the fuel cell stack and the fuel cell load device; and a second relay having a first end connected to a second end of the diode and a second end connected between the first relay and the fuel cell load device.. .

Methods for determining anode integrity during fuel cell vehicle operation

A system and methods are provided for testing anode integrity during vehicle operation. In one example described, the system and methods allow for anode leak tests during vehicle operation based on a flow of hydrogen into a fuel cell, the flow of hydrogen into the fuel cell maintaining the vehicle power while the leak test is performed.
Ford Global Technologies, Llc

Ion filter life perception device for fuel cell vehicle

An ion filter life perception device for a fuel cell vehicle is provided to detect a replacement life of a fuel cell ion filter cartridge. The device includes a body part that is installed within an ion filter and has an ion resin filled therein.
Hyundai Motor Company

Control hydrogen leak determining system of fuel cell vehicle

A system control method is provided for measuring a distance between a smart key and a vehicle. When the distance between the smart key and the vehicle is changed based on a predetermined distance whether a hydrogen leak occurs is detected by a hydrogen sensor detection controller.
Kia Motors Corporation

Hydrogen exhaust fuel cell vehicle

An apparatus is provided for safely discharging hydrogen permeated and leaking from a fuel tank of a fuel cell vehicle. The hydrogen exhaust apparatus for a fuel cell vehicle collects and safely processes hydrogen permeating a tank, and quantitatively detects the hydrogen transmissive amount.
Hyundai Motor Company

Control method and system of fuel cell system

A control method and system of a fuel cell system is provided. The control method includes detecting, by a controller, a voltage of a fuel cell stack when power generation of a fuel cell is stopped while a fuel cell vehicle is being driven.
Hyundai Motor Company

Device and monitoring dryness of fuel cell stack

A device and a method for monitoring dryness of a fuel cell stack can accurately determine whether the fuel cell stack is dry or not, to ensure smooth operation and performance of the fuel cell stack during operation of a fuel cell vehicle. The device includes a voltage sensing unit that monitors voltage of the fuel cell stack in real time; a current sensing unit that monitors current of the fuel cell stack in real time; a counting unit that compares the monitored voltage with a standard current-voltage performance curve; and a stack dryness determining unit that determines that the fuel cell stack is dry when a count determined by the counting unit is a standard level or more..
Hyundai Motor Company

Coolant bypass structure

A coolant bypass structure includes a main loop forming a channel in which coolant circulates; a bypass loop connected to the main loop and forming a selective bypass channel; and a stack bypass valve provided between the main loop and the bypass loop to open and close the bypass loop according to a predetermined temperature, and provided with an outlet temperature sensor. The coolant bypass structure may improve marketability by decreasing the starting time of the fuel cell vehicle in a frozen state and improve power efficiency..
Kia Motors Corporation

Exhaust port structure of fuel cell vehicle

An exhaust port structure of a fuel cell vehicle includes a re-circulation fluid passage mounted on an upper portion of an exhaust pipe so as to be arranged parallel to the exhaust pipe, and a mixing pipe mounted on an end of the exhaust pipe and through which external air is suctioned. When a concentration of hydrogen in exhaust gas exceeds a reference value, hydrogen is re-circulated into the exhaust pipe via the re-circulation fluid passage and mixed with external air through the mixing pipe before being exhausted to outside.
Hyundai Motor Company

Fuel cell vehicle

A fuel cell vehicle includes a front compartment, a cowl top, a hood, and a blocking member. The front compartment is provided in front of a dashboard.
Honda Motor Co., Ltd.

Safety apparatus of fuel cell vehicle and controlling the safety apparatus

A safety apparatus uses a fuel cell and a high voltage battery as a power source, and includes: a first voltage sensor that measures a voltage of a positive side of a voltage bus; a second voltage sensor that measures a voltage of a negative side of the voltage bus; and a controller that determines an electrical insulation between the positive side of the voltage bus and the electrical chassis based on the voltage of the positive side of the voltage bus and determines an electrical insulation between the negative side of the voltage bus and the electrical chassis based on the voltage of the negative side of the voltage bus.. .
Hyundai Motor Company

Manifold block assembly for fuel cell vehicles

A manifold block assembly for a fuel cell vehicle mounted on a fuel cell stack and supplying air and hydrogen to the stack, includes a manifold block in which a hydrogen discharge path connected to a hydrogen line formed in the stack, an air discharge path connected to an air line formed in the stack, and a watertight bulkhead are integrally formed with each other. The manifold block assembly further includes a hydrogen inflow pipe configured to be attached to the manifold block and connected to the hydrogen line formed in the stack.
Kia Motors Corporation

Fuel cell system, fuel cell vehicle, and controlling fuel cell system

A fuel cell system installed in a vehicle includes a fuel cell that supplies power to a motor that drives the vehicle, a pump that supplies oxygen to the fuel cell, an accelerator position detector that detects an accelerator depression amount of the vehicle, and a controller that calculates required generated power of the fuel cell and required driving power of the pump, based on the accelerator depression amount. When a preset condition of causing a sharp drop in the calculated required generated power is satisfied, the controller calculates the required driving power in such a mariner that a drop rate of the required driving power becomes higher than a drop rate of the calculated required generated power, sets a lower limit to the calculated required driving power, and drives the pump in accordance with the lower limit when the required driving power is lower than the lower limit..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system, fuel cell vehicle, and control fuel cell system

A fuel cell system mounted in a vehicle includes a fuel cell supplying electric power to a motor driving the vehicle, a pump supplying oxygen to the fuel cell, an accelerator position detection unit detecting an accelerator depression amount of the vehicle, and a control unit calculating electric power required to be generated by the fuel cell and electric power required for driving of the pump based on the accelerator depression amount and controlling the pump based on the electric power required for the driving, in which the control unit calculates the electric power required for the driving such that a rate of increase in the electric power required for the driving exceeds a rate of increase in the electric power required to be generated when the calculated electric power required to be generated increases.. .
Toyota Jidosha Kabushiki Kaisha

System for controlling low-temperature starting of fuel cell vehicle and the same

A system for controlling low-temperature starting of a fuel cell vehicle includes a high-pressure hydrogen flow control valve controlling a flow of hydrogen supplied to a fuel cell stack. A fuel cell controller is configured to change and control an opening rate of the high-pressure hydrogen flow control valve when an internal temperature of the fuel cell stack is a reference value or less.
Hyundai Motor Company

Air processing system of fuel cell vehicle mounted with integrated valve

An air processing system of a fuel cell vehicle mounted with an integrated valve includes: the integrated valve attached to an air inlet and an air outlet formed integrally with a fuel cell stack and adjusting amounts of air introduced into and discharged from the fuel cell stack. The integrated valve is positioned at the shortest distance from the fuel cell stack, such that an amount of remaining oxygen that is to be consumed at the time of stopping start of a fuel cell vehicle is minimized.
Hyundai Motor Company

Fuel cell vehicle coolant having improved storage stability and producing the same

There are provided a stock solution composition for fuel cell vehicle coolant used by dilution with a diluent comprising water and a method for producing the same, and further a fuel cell vehicle coolant composition having improved storage stability and a method for producing the same. The present invention relates to a method for producing a stock solution composition for fuel cell vehicle coolant, wherein the stock solution composition comprises at least one ethylene glycol compound selected from the group consisting of ethylene glycol, diethylene glycol, and triethylene glycol, and is used by dilution with a diluent comprising water, and the method comprises the following steps: (a) a step of selecting as a raw material an ethylene glycol compound having an ethylene glycol monoformate content of 60 ppm or less; or (b) a step of selecting as a raw material an ethylene glycol compound, wherein a 50% by mass aqueous solution of the ethylene glycol compound has a conductivity of 4.5 μs/cm or less after heating..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system, fuel cell vehicle and control fuel cell system

A fuel cell system comprises: a fuel cell; a cooling system circuit including a cooling liquid supply path configured to supply a cooling liquid to the fuel cell, a radiator configured to cool down the cooling liquid, a radiator fan, and a cooling liquid pump provided in the cooling liquid supply path to feed the cooling liquid to the fuel cell; a controller; and a speedometer configured to obtain a speed of the fuel cell vehicle, wherein the controller is capable of performing a first cooling control that sets an upper limit value of driving amount of the radiator fan according to the speed of the fuel cell vehicle and regulates a flow rate of the cooling liquid pump or the driving amount of the radiator fan under the upper limit value of the driving amount of the radiator, so as to cool down the fuel cell.. .
Toyota Jidosha Kabushiki Kaisha

Fuel cell controlling rotational speed of air compressor

A fuel cell system includes an air compressor that supplies oxidant gas to a fuel cell installed in a fuel cell vehicle, a measured rotational speed acquirer that acquires a measured value of rotational speed of the air compressor, and a controller that calculates a rotational speed command value of the air compressor based on required generated power of the fuel cell, calculates a torque command value of the air compressor based on the calculated rotational speed command value and current rotational speed of the air compressor, and controls rotational speed of the air compressor based on the calculated torque command value. The controller estimates the current rotational speed of the air compressor baaed on the measured value of the rotational speed acquired by the measured rotational speed acquirer and a history of the calculated torque command value, and calculates the torque command value by using the estimated rotational speed..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system, fuel cell vehicle, and controlling fuel cell system

A fuel cell system to be installed on a vehicle includes a fuel cell, a secondary battery, an soc detector that detects a temperature and a state of charge of the secondary battery, an accelerator position detector that detects an accelerator depressed amount, and a controller that controls power to be generated by the fuel cell. The controller includes: a required generation power calculator that calculates required generation power based on the accelerator depressed amount and the temperature and the state of charge of the secondary battery; and a maximum required power calculator that calculates maximum required power based on the accelerator depressed amount and the temperature and the state of charge of the secondary battery.
Toyota Jidosha Kabushiki Kaisha

Fuel cell vehicle and control method therefor

With a fuel cell vehicle includes a fuel cell and a secondary battery, a drive motor and a pump motor are connected to each other via an electric power line so that the drive motor and the pump motor are capable of receiving and supplying electric power with each other without involving reception and supply of electric power with the secondary battery. The control device determines an upper-limit guard value of torque of the pump motor based on a dischargeable power of the secondary battery and an output power of the fuel cell, or determines a lower-limit guard value of torque of the pump motor based on a chargeable power of the secondary battery and an output power of the fuel cell..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system and operating fuel cell system

The present invention provides a system for a fuel cell vehicle, capable of preventing an unnecessary error in calculating high potential avoidance power to calculate power for high potential avoidance with high accuracy. A fuel cell system 100 includes: a fuel cell 20 that receives the supply of reactant gas to generate power; a secondary battery 50 for storing part of the power generated by the fuel cell 20; calculation means 60 which, when surplus power for high potential avoidance is added to the output voltage of the fuel cell 20 to avoid a high potential, calculates high potential avoidance voltage to avoid the high potential by feedback control based on a deviation between power generation voltage of the fuel cell 20 and high potential avoidance target voltage; determination means 70 for determining whether the operating state of the fuel cell 20 corresponds to a prohibition condition a to prohibit updating of an integral term of the feedback control or a permission condition; and feedback control condition deciding means 80 for stopping the updating of the integral term when the operating state corresponds to the prohibition condition a or updating the integral term when the operating state corresponds to the permission condition..
Toyota Jidosha Kabushiki Kaisha

Fuel cell system, fuel cell vehicle, and control fuel cell system

A fuel cell system includes: a power supply circuit including a fuel cell and a secondary battery; an oxidant gas supply flow passage; a pump; and a control unit configured to drive the pump and dilute hydrogen retained in an cathode. The control unit is configured to stop supplying an oxidant gas to the cathode by stopping an operation of the pump such that dilution of the hydrogen retained in the cathode is stopped, while the fuel cell vehicle remains stationary after a starter switch of the fuel cell vehicle is switched from an off state to an on state, or while a load required of the power supply circuit remains smaller than a predetermined value after the starter switch of the fuel cell vehicle is switched from the off state to the on state..
Toyota Jidosha Kabushiki Kaisha

Method for controlling fuel cell vehicles and fuel cell vehicles

Provided is a method for controlling a fuel cell vehicle capable of informing a user outside of the vehicle of the possibility that the fuel cell stops power generation and external power-feeding stops, whereby problems due to unexpected stopping of power feeding can be avoided. In a method for controlling a fuel cell vehicle 100 including an external power-feeding device 50, when it is determined that a state of a fuel cell exceeds a limiting point where deterioration of the fuel cell 20 or a failure of a driving device to supply fuel to the fuel cell 20 occurs during external power feeding, warning is issued to outside of the vehicle 10 before the fuel cell 20 stops power generation..
Toyota Jidosha Kabushiki Kaisha



Fuel Cell Vehicle topics:
  • Fuel Cell Vehicle
  • Fuel Cell Stack
  • Fuel Cell System
  • Rotary Valve
  • Transfer Rate
  • Ventilation
  • Interrupts
  • Communication System
  • Continuation
  • Electric Vehicle
  • Polynomial
  • Temperature Measurement
  • Longitudinal Direction
  • Downstream
  • Exhaust Gas


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    This listing is a sample listing of patent applications related to Fuel Cell Vehicle for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Fuel Cell Vehicle with additional patents listed. Browse our RSS directory or Search for other possible listings.


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