Including Measurement Of Electrical Output Patents (Class 429/430)
  • Patent number: 10844501
    Abstract: Electrocatalysts composed of single atoms dispersed over porous carbon support were prepared by a lithium-melt method. The new catalysts demonstrated high selectivity, high Faradic efficiency and low overpotential toward to the electrocatalytic reduction of carbon dioxide to fuels.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: November 24, 2020
    Assignees: UChicago Argonne, LLC, Board of Trustees of Northern Illinois University
    Inventors: Di-Jia Liu, Tao Xu, Dominic Rebollar, Haiping Xu
  • Patent number: 10794250
    Abstract: An electrochemical reactor 70 is provided with a proton conductive solid electrolyte layer 75; an anode layer 76 arranged on the surface of the solid electrolyte layer and able to hold water molecules; a cathode layer 77 arranged on the surface of the solid electrolyte layer; and a current control device 73 controlling a current flowing through the anode layer and the cathode layer. The current control device reduces the current flowing through the anode layer and the cathode layer, when the water molecules held in the anode layer become smaller in amount.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: October 6, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tetsuya Sakuma, Keishi Takada, Hiromasa Nishioka
  • Patent number: 10741857
    Abstract: A fuel cell system includes a fuel cell, a water storage unit configured to store water recovered from the fuel cell and be able to drain the stored water, a water usage unit configured to use the water in the water storage unit, and a control unit configured to control a drain of the water from the water storage unit. The control unit is configured to, when a first predetermined time has elapsed since a last drain of the water from the water storage unit, drain the water from the water storage unit. The control unit is configured to, when it is predicted that the water in the water storage unit is used by the water usage unit within a second predetermined time shorter than the first predetermined time, not drain the water from the water storage unit even when the first predetermined time has elapsed since the drain of the water from the water storage unit.
    Type: Grant
    Filed: September 28, 2018
    Date of Patent: August 11, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuichi Sakajo, Takashi Koyama, Ryo Yoshioka, Takahiro Yamafuji
  • Patent number: 10727512
    Abstract: A device for monitoring electricity generation comprising: an acquirer that acquires a total value of cell voltage from multiple cells including fuel cells; an increaser that increases the anode gas now rate to the multiple cells when the total value shows a possibility of negative voltage occurring in some of the multiple cells; and a judger that judges if negative voltage occurred in some of the multiple cells based on the total value following the increase of the anode gas flow rate.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: July 28, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Satoshi Shiokawa, Tetsuya Bono, Osamu Hamanoi
  • Patent number: 10720618
    Abstract: The disclosure relates to an end plate and a battery module. The end plate comprises an end plate body, which has an inner surface and an outer surface that are opposed in a thickness direction of the end plate body, the outer surface is engaged with a fixing band for the battery module; and a limiting assembly, which is disposed on the outer surface, the limiting assembly includes a fixed clamping member and a movable clamping member which are spaced apart from each other in a height direction of the end plate body and are used in cooperation with each other. A clamping space is formed between the fixed clamping member and the movable clamping member. The movable clamping member can make room for the fixing band so that the fixing band enters the clamping space by the movable clamping member and is limited within the clamping space.
    Type: Grant
    Filed: March 20, 2019
    Date of Patent: July 21, 2020
    Assignee: Contemporary Amperex Technology Co., Limited
    Inventors: Chao Long, Huabin Zou, Derong Wang, Linggang Zhou, Cong Bao
  • Patent number: 10714783
    Abstract: A system includes a first plurality of fuel cell stacks configured to generate a first portion of an electric potential and a second plurality of fuel cell stacks configured to generate a second portion of the electric potential. The system includes a positive electrical bus bar conductively coupled with the first plurality of fuel cell stacks and configured to power an electrical load using the generated electric potential. The system includes a negative electrical bus bar conductively coupled with the second plurality of fuel cell stacks and configured to electrical load using the generated electric potential. The positive electrical bus bar is elongated and extends between the first plurality of fuel cell stacks and the negative electrical bus bar is elongated and extends between the second plurality of fuel cell stacks.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 14, 2020
    Assignee: CUMMINS ENTERPRISE LLC
    Inventors: Darren Bawden Hickey, Irfan Saif Hussaini, Andrew Philip Shapiro, Keith Garrette Brown
  • Patent number: 10693161
    Abstract: There is provided a fuel cell system having a fuel cell, which determines whether an operating state thereof is a low-temperature-startup operation or a normal-running operation and performs recovery control for increasing a concentration gradient of water in an electrolyte membrane of the fuel cell to be greater than that in the normal-running operation when it is determined that the operating state is the low-temperature-startup operation.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: June 23, 2020
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Fumio Kagami
  • Patent number: 10630093
    Abstract: A method for optimizing the architecture of the power supply of a load, includes the following steps: determination of a mission profile (16) sizing according to the power required by the load over time; definition of the sources of energy storage for hybridization; association of a characteristic behavior model with each source of energy storage; determination of the couples of sources of energy storage that can generate the mission profile with a minimum mass; and determination, from the potential couples of sources of energy storage, of the couple with the weakest mass.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 21, 2020
    Assignees: AIRBUS GROUP SAS, AIRBUS DEFENCE AND SPACE SAS, AIRBUS HELICOPTERS
    Inventors: Benoit Fleury, Gregor Massiot, Pierre-Bertrand Lancelevee, Julien Labbe
  • Patent number: 10629929
    Abstract: A test cell configured to qualify an apparatus for characterizing cells of at least one fuel cell and a method for producing such a test cell. The test cell includes a first and a second contact face respectively including a first and a second contact area entirely or partially occupying a surface of the corresponding contact face, the first and second contact faces together delimiting an interior volume. The test cell further includes an equivalent passive circuit configured to have an equivalent impedance to at least one cell of a fuel cell, the equivalent circuit including a first and a second output terminal respectively connected to the first and second contact areas, the equivalent circuit being housed in the interior volume.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: April 21, 2020
    Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
    Inventor: Julien Vulliet
  • Patent number: 10615437
    Abstract: A fuel cell system including: a fuel cell; a voltage sensor that measures output voltage of the fuel cell; a converter that boosts the output voltage; and a control unit that controls the converter using a duty ratio including a feedforward term and a feedback term, the feedforward term being set to perform feedforward control, the feedback term being set to perform feedback control, wherein when the control unit causes the converter to boost the output voltage, and when the feedforward term calculated by specified Expression I exceeds an upper limit calculated by specified Expression II, the control unit causes the converter to boost the voltage output from the fuel cell with the duty ratio including the upper limit and the feedback term.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: April 7, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yutaka Tano, Shinji Aso, Yuji Kakeno
  • Patent number: 10593973
    Abstract: A fuel cell system incorporated in a vehicle includes a fuel cell that uses a reaction gas to generate electric power and a controller. When output restriction that restricts the electric power output by the fuel cell is performed, (a) the controller does not store a content of the performed output restriction as a history in a case where a throttle opening of a throttle is smaller than an opening threshold or an output request is smaller than an output threshold, the output request being issued to the fuel cell and set in accordance with the throttle opening, and (b) the controller stores the content of the performed output restriction as a history in a case where a condition specified in advance is satisfied while the throttle opening is greater than the opening threshold and the output request is greater than the output threshold.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 17, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Hiromu Saito
  • Patent number: 10547041
    Abstract: A battery pack includes a grouping of battery cells and a plurality of array frames for retaining the grouping of battery cells. Each of the plurality of array frames includes a ratchet feature. A column bolt includes a raised surface configured to mate with the ratchet feature of each of the plurality of array frames to secure the plurality of array frames together.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: January 28, 2020
    Assignee: FORD GLOBAL TECHNOLOGIES, LLC
    Inventors: Rajaram Subramanian, Saravanan Paramasivam, Mladen Marjanovic, Kimberley King, Steve Droste
  • Patent number: 10529999
    Abstract: A power supply apparatus, a power supply system, and a power supply method increase the power generation efficiency of the system overall in a system that includes a plurality of power source units. A power supply apparatus operates distributed power sources in parallel, the distributed power sources including power source units, and supplies output power from the distributed power sources to a load. The power supply apparatus includes a controller that controls each power source unit so that output power from whichever of the power source units has higher power generation efficiency is prioritized to increase.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: January 7, 2020
    Assignee: KYOCERA Corporation
    Inventor: Yuki Suzuki
  • Patent number: 10449859
    Abstract: The invention relates to a fuel cell vehicle (200), in which the driver has more influence on the consumption and the dynamic of the vehicle (200). This is achieved by the fuel cell vehicle (200) comprising at least one sensor for detecting a first driver input and a control unit (60). The control unit (60) is configured to operate the fuel cell vehicle (200) in one of a plurality of operating modes depending on the first driver input, wherein a power consumption PAC of the air-conditioning system (70), an operating range of the fuel cell stack (10), and a transfer function for determining the power demand PEM from the second driver input are varied depending on the selected operating mode. It is provided that the driver has at least five different operating modes available, which differ in particular with respect to the available driving dynamic, the fuel consumption, and the adjustable comfort.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: October 22, 2019
    Assignees: VOLKSWAGEN AG, AUDI AG
    Inventors: Nils Brandau, Christian Schröder
  • Patent number: 10396377
    Abstract: A fuel cell device according to the present invention includes a controller. The controller is configured to allow a fuel gas supply device and an oxygen-containing gas supply device to supply the fuel gas and the oxygen-containing gas supplied to fuel cells (19) in a supply amount less than a supply amount to be set in accordance with a decreased power as required by the external load as well as to cause an igniter to start operation if the power required by the external load decreases and flameout of the combustion in a combustor (45) is recognized.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: August 27, 2019
    Assignee: KYOCERA Corporation
    Inventors: Naoki Kawabata, Nobuhiko Hachiki
  • Patent number: 10388973
    Abstract: A fuel cell stack diagnostic system is provided. The system includes a fuel cell stack having a plurality of cell channels and a diagnostic analyzer that performs a voltage measurement on each of the plurality of cell channels. The diagnostic analyzer determines that the voltage measurement is abnormal as a first level when a voltage ratio is less than a first reference voltage ratio when starting a vehicle in which the fuel cell stack diagnostic system is mounted. Additionally, the voltage ratio is a ratio of a minimum cell channel voltage to an average cell channel voltage.
    Type: Grant
    Filed: July 3, 2016
    Date of Patent: August 20, 2019
    Assignee: Hyundai Motor Company
    Inventor: Kang Sik Jeon
  • Patent number: 10298056
    Abstract: A power control system includes an acquisition unit that acquires information indicating the amount of power demand that is used by a consumer according to predetermined information that prompts adjustment of the power demand, and a control unit that controls a predetermined apparatus in accordance with a target demand amount and the information indicating the power demand amount.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: May 21, 2019
    Assignee: NEC Corporation
    Inventors: Koji Kudo, Hitoshi Yano, Ryo Hashimoto, Hisato Sakuma
  • Patent number: 10283784
    Abstract: A fuel cell including: a diaphragm/electrodes assembly including a first electrode forming an anode, and a first reinforcement attached to a surface of the diaphragm and surrounding the first electrode; two bipolar plates, having the diaphragm/electrodes assembly placed therebetween and including at least one flow collector passing therethrough, a first surface of the diaphragm including an active area and a connection area and arranged between the flow collector and the active area; a conductor track rigidly connected to the first surface of the diaphragm and extending between the connection area and one edge of the diaphragm that projects beyond the first reinforcement; and a measurement electrode, positioned on the connection area of the first surface of the diaphragm and making electrical contact with the conductor track.
    Type: Grant
    Filed: September 15, 2015
    Date of Patent: May 7, 2019
    Assignee: COMMISSARIAT À L'ÉNERGIE ATOMIQUE ET AUX ÉNERGIES ALTERNATIVES
    Inventors: Remi Vincent, Sebastien Rosini, Denis Tremblay
  • Patent number: 10222770
    Abstract: An output module comprises two management units each of which calculates the current demand for the module independently from one another. One management unit controls an output current, controller whilst the other unit monitors the current produced by the output current controller against an independently calculated demand. The output module has multiple output modules. In normal operation, each module provides a portion of the required output current, the total output current being equal to the sum of the currents output by each module. in the event of failure on one of the, modules, the other module or modules switch to providing the total current required and the failed module is switched to a fail safe mode by using an isolation circuit to switch off the output current from that module.
    Type: Grant
    Filed: November 16, 2012
    Date of Patent: March 5, 2019
    Assignee: Rockwell Automation Limited
    Inventors: Thomas B. Meagher, Gerald R. Creech, Philip J. Agar, Shelby A. Murrell, Ian David D. W. Jones
  • Patent number: 10164275
    Abstract: A fuel cell system includes: a wetness target value calculating unit configured to calculate a target value of a wet state of the fuel cell; a gas required flow rate calculating unit configured to calculate a cathode gas required flow rate on the basis of a power generation request to the fuel cell; a wetness-control anode gas flow rate calculating unit configured to calculate a wetness-control anode gas circulation flow rate at least on the basis of the wetness target value and the cathode gas required flow rate during a dry control; an anode gas flow rate control unit configured to control an anode gas circulation flow rate on the basis of the wetness-control anode gas circulation flow rate; a wetness-control cathode gas flow rate calculating unit configured to calculate a wetness-control cathode gas flow rate at least on the basis of the wetness target value and a measured value or estimated value of the anode gas circulation flow rate during the dry control; and a cathode gas flow rate control unit config
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: December 25, 2018
    Assignee: NISSAN MOTOR CO., LTD.
    Inventors: Tetsuya Aoki, Takahiro Kaito, Takahiro Fujii
  • Patent number: 10115990
    Abstract: 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 manner 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.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 30, 2018
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yuji Kakeno, Kenji Umayahara, Mitsuhiro Nada
  • Patent number: 10038330
    Abstract: Method for controlling the battery capacity of a secondary battery in a battery-driven household electrical appliance and a respective household electrical appliance are described, wherein the battery-driven household electrical appliance has an electrical load and a control means adapted to control the operation of the household electrical appliance and to monitor the capacity of the secondary battery, said method comprising the following steps: recognizing a situation of storage of the household electrical appliance in which the household electrical appliance is not in use; determining the current capacity of the secondary battery; comparing the current capacity of the secondary battery with a desired storage capacity for the electrical household appliance; activating an energy-consuming load in the electrical household appliance if the current capacity of the secondary battery is higher than the desired storage capacity until the current capacity is equal to the desired storage capacity; activating an e
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: July 31, 2018
    Assignee: Braun GMBH
    Inventors: Torsten Klemm, Jan Christian Langsdorf, Gerd Laschinski, Hartmut Loth-Krausser, Christof Ungemach
  • Patent number: 10033055
    Abstract: One aspect of the present disclosure is directed to a fuel cell power system. The system may include one or more fuel cells configured to generate electric power and a compressor configured to supply compressed air to the one or more fuel cells. The system may further include one or more sensors. The sensors may be configured to generate a signal indicative of at least one measured parameter of air flow across the one or more fuel cells. The system may also include a controller in communication with the one or more fuel cells, the compressor, and the sensors. The controller may be configured to determine a desired pressure drop based on at least one calculated parameter, determine a control command for the compressor based on the desired pressure drop, and adjust the control command based on a feedback gain parameter and a feed forward gain parameter.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 24, 2018
    Assignee: Nuvera Fuel Cells, LLC
    Inventors: Marco Cauchi, Marco Spataro
  • Patent number: 10026979
    Abstract: Disclosed herein is an apparatus for controlling a fuel cell system, which includes multiple hot boxes including multiple fuel cell stacks, using a reconfigurable network having linear switching complexity, includes: a power conversion system for supplying outputs of normal stacks among the multiple fuel cell stacks to a load; at least one auxiliary power conversion system for supplying an output of at least one deteriorated stack among the multiple stacks to a load; a reconfigurable switch network for connecting in series or in parallel stacks of any hot box to stacks of another hot box; and a control unit for controlling an operation of the reconfigurable switch network by detecting a state of each of the stacks.
    Type: Grant
    Filed: March 17, 2015
    Date of Patent: July 17, 2018
    Assignees: SK INNOVATION CO., LTD., SNU R&DB FOUNDATION
    Inventors: Byung Hee Kang, Seong Je Wu, Kyung Bin Yoo, Naehyuck Chang, Jaemin Kim
  • Patent number: 10000139
    Abstract: Disclosed are a safety system of a fuel cell vehicle and a control method for the safety system. A safety system of a fuel cell vehicle using a fuel cell and a high voltage battery as a power source may include: a power switch disposed on a power wire connecting the power source and a power load to each other; an insulation resistance measuring device measuring an insulation resistance between the power wire and a chassis; and a controller controlling an operation of the power switch based on a measured insulation resistance measured by the insulation resistance measuring device. When the measured insulation resistance is equal to or less than a reference resistance, the controller enters a safe mode and the power switch is turned off to thereby block power supplied to the power load.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: June 19, 2018
    Assignee: Hyundai Motor Company
    Inventors: Namwoo Lee, Soonil Jeon, Youngbum Kum, Juhan Kim, Saehoon Kim
  • Patent number: 9912003
    Abstract: A fuel cell stack includes: a cell stack structure formed by stacking a plurality of cells; a pair of current collectors; a pair of end members; and a fastener band wrapped around a cell stack formed by stacking the cell stack structure, the pair of current collectors, and the pair of end members. Each of the pair of end members includes a plurality of plate members. The plate members have a same arched shape in which a height from a surface to contacting a corresponding one of the pair of current collectors gradually increases toward a center portion from both ends, and are disposed in parallel while being apart from each other in a width direction of the fastener band. Adjacent plate members are coupled to each other through a bendable coupling member at part of facing surfaces.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: March 6, 2018
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Takashi Morimoto, Mitsuo Yoshimura, Kenji Arai, Kozue Kuniyoshi
  • Patent number: 9847650
    Abstract: An energy management system having a fuel cell apparatus (150) as a power generator that generates power using fuel, and an EMS (200) that communicates with the fuel cell apparatus (150). The EMS (200) receives messages that indicate a type of the fuel cell apparatus (150), from the fuel cell apparatus (150).
    Type: Grant
    Filed: August 5, 2013
    Date of Patent: December 19, 2017
    Assignee: KYOCERA CORPORATION
    Inventor: Kazutaka Nakamura
  • Patent number: 9793561
    Abstract: An object is to provide a technique that a current state of a fuel cell may be detected more accurately. A fuel cell system includes a controller, a fuel cell, and an impedance measurer that may measure an impedance of the fuel cell. The controller obtains a first impedance value that expresses the impedance of the fuel cell in a predetermined state, acquires a second impedance value that expresses the impedance of the fuel cell that is measured by the impedance measurer during operation control of the fuel cell, and performs operation control of the fuel cell using the first impedance value and the second impedance value.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: October 17, 2017
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Tomohiro Ogawa, Yoshiaki Naganuma
  • Patent number: 9780393
    Abstract: A cooling system is provided for use with a fuel cell. The cooling system comprises a first heat exchanger fluidly connected to an outlet passage of the fuel cell. The first heat exchanger can be configured to condense at least a portion of a fluid passing through the outlet passage of the fuel cell into liquid water. The cooling system can also comprise a second heat exchanger fluidly connected to an outlet passage of the first heat exchanger and an inlet passage of the fuel cell. The second heat exchanger can be configured to cool a fluid passing into the inlet passage of the fuel cell. In addition, the outlet passage of the fuel cell and the inlet passage of the fuel cell can be fluidly connected to a cathode of the fuel cell, and the inlet passage of the fuel cell can be configured to supply water to the cathode.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: October 3, 2017
    Assignee: Nuvera Fuel Cells, LLC
    Inventors: Brian J. Bowers, Steven Fiore, Ware Fuller, Greg Hickey, Changsik Kim
  • Patent number: 9758058
    Abstract: An emergency start method for a fuel cell-powered vehicle includes starting the vehicle and detecting an abnormal state of a power supply system of an air blower upon the start of the vehicle. If the power supply system of the air blower is in the abnormal state, an air-check valve of a fuel cell opens. Hydrogen is supplied to the fuel cell, and the air blower operates with power generated from the fuel cell and an emergency start system.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: September 12, 2017
    Assignee: HYUNDAI MOTOR COMPANY
    Inventors: Sung Gone Yoon, Kyu Il Lee, Kyung Won Suh, Seon Hak Kim
  • Patent number: 9761896
    Abstract: A method for stopping a fuel cell system includes supplying a fuel gas containing a fuel to an anode of a fuel cell which is to generate electric power. An oxidant gas containing an oxidant is supplied to a cathode of the fuel cell. A concentration of the oxidant gas in the cathode is reduced. An output voltage of the fuel cell is lowered while a slope of a change in the output voltage with respect to elapsed time is controlled such that an output current of the fuel cell has a predetermined relationship with a predetermined current reference value.
    Type: Grant
    Filed: June 25, 2015
    Date of Patent: September 12, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Kenji Taruya, Yuji Matsumoto, Nobuki Koiwa
  • Patent number: 9716504
    Abstract: A power control device 9 of the present invention includes: a power-supply target value obtaining unit 21 configured to obtain electric power being currently consumed by a load as a power-supply target value; a generated-power detection unit 22 configured to detect a generated-power value generated by a fuel cell 2 with respect to the power-supply target value; a power compensation amount calculation unit 23 configured to calculate a deviation of the generated-power value from the power-supply target value and determine an amount of power compensation to be supplied to the load from a storage cell 6; and an output power control unit 24 configured to determine current transient response characteristics of the storage cell 6, and perform control so that output power from the storage cell 6 becomes equal to the amount of power compensation based on the current transient response characteristics.
    Type: Grant
    Filed: July 5, 2013
    Date of Patent: July 25, 2017
    Assignee: NISSAN MOTOR CO., LTD.
    Inventor: Takeshi Fujita
  • Patent number: 9647282
    Abstract: Provided is a method of controlling a fuel cell system including a stop command sensing process of sensing a stop command output when the fuel cell system stops, an anode pressure increasing process of increasing pressure so that the pressure of the anode reaches a first predetermined pressure value, and a stop-time discharge process of performing discharge by consuming oxygen remaining within an oxidant off-gas while driving an oxidant off-gas circulation pump.
    Type: Grant
    Filed: January 6, 2014
    Date of Patent: May 9, 2017
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Koichiro Furusawa, Kaoru Yamazaki
  • Patent number: 9608449
    Abstract: Provided is a power system that can arbitrarily set output power while stabilizing output voltages. Connection terminals 13 and 23 of lower power sources 1 and 2 are connected to external connection terminals 41 in parallel. Voltage measurement section 31 measures voltage values of external connection terminals 41 as measured voltage values. Power converters 12 and 22 measure power supply capacities of lower power sources 1 and 2, respectively. Output instruction section 32 adjusts power or currents flowing through connection terminals 13 and 23 based on the measured voltage values and the power supply capacities so that the measured voltage values are included in a predetermined voltage range.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: March 28, 2017
    Assignee: NEC Corporation
    Inventors: Shingo Takahashi, Yasuhiro Ishikawa, Kazuaki Honda
  • Patent number: 9541001
    Abstract: A drive unit includes a combustion chamber for combusting a fuel/air mixture, and a fuel cell device, wherein the fuel cell device includes at least one fuel cell, which in each case includes an anode that is couplable to a fuel line, a cathode that is couplable to an air source, and a fluid outlet and is arranged upstream of the combustion chamber. The combustion chamber further includes a combustion chamber inlet for supplying the fuel/air mixture, and a combustion chamber outlet for discharging exhaust gas, and the combustion chamber inlet is connected to the fluid outlet of the fuel cell device. In this way a hybrid drive unit can be provided which apart from mechanical power also generates electrical power at high efficiency.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: January 10, 2017
    Assignee: Airbus Operations GmbH
    Inventors: Jürgen Steinwandel, Christian Wolff, Claus Hoffjann
  • Patent number: 9515331
    Abstract: A fuel cell including a stack in which a plurality of cells are stacked includes an air manifold and a hydrogen manifold on a first side and a second side of the stack, respectively, a jet array including a tubular body inserted in the air manifold or the hydrogen manifold and a plurality of orifices formed in the tubular body and arranged in a longitudinal direction of the tubular body, a pump or a valve for supplying air or hydrogen to the jet array; and a controller that operates the pump or the valve.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: December 6, 2016
    Assignee: Hyundai Motor Company
    Inventors: Yong Gyu Noh, Dong Jo Oh, Bu Kil Kwon
  • Patent number: 9472818
    Abstract: System and methods for removing water and/or other liquids from a fuel cell system at a variety of vehicle tilt orientations are disclosed. In certain embodiments, a method for regulating a sump system in a vehicle may include receiving orientation information from one or more orientation sensors associated with the vehicle and/or the sump system. Based on the orientation information, an adjusted fill level of the sump system may be determined (e.g., using a look-up table or the like). A drain valve of the sump system may be selectively actuated to regulate a level of liquid in the sump system at or below the adjusted level.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: October 18, 2016
    Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: Derek S. Kilmer
  • Patent number: 9466985
    Abstract: A power controlling method for a power supplying system coupled to a load is disclosed. City energy is detected. It is determined whether the city energy corresponds to a first pre-determined condition. When the city energy corresponds to the first pre-determined condition, the city energy is transformed to generate a main power to the load. When the city energy does not correspond to the first pre-determined condition, a fuel cell unit is activated to provide a backup power to the load.
    Type: Grant
    Filed: May 7, 2013
    Date of Patent: October 11, 2016
    Assignee: Chung-Hsin Electric & Machinery Mfg. Corp.
    Inventors: Yi-Fan Wu, Ruiming Zhang, Shuhai Quan, Rui Quan
  • Patent number: 9455457
    Abstract: A fuel cell system includes: a fuel cell configured to generate electric power by using a hydrogen-containing gas; a catalyst, which reacts with an oxidizing gas by oxidation; an oxidizing gas supply device configured to supply the oxidizing gas to the catalyst; and a controller configured to control, before removal of the catalyst to outside, the oxidizing gas supply device to perform an oxidizing process of oxidizing the catalyst.
    Type: Grant
    Filed: April 9, 2014
    Date of Patent: September 27, 2016
    Assignee: Panasonic Intellectual Property Management Co., Ltd.
    Inventors: Shigeru Iiyama, Hirofumi Kokubu, Takahiro Kusuyama, Hiroaki Kitagawa
  • Patent number: 9401522
    Abstract: A sensor cell (1010) for control purposes usable in an assembly (1000) of fuel cells of the type having a membrane electrode assembly (MEA) interposed between an anode gas diffusion layer and a cathode gas diffusion layer, and first and second current collectors coupled to the anode and cathode gas diffusion layers (GDL), respectively. The sensor cell (1010) is preferably coupled so that it shares the negative current collector (1050) with last fuel cell in the in-plane fuel cell assembly (1000), and is short-circuited by a resistor (1070) to provide a voltage signal, indicative of the status of the assembly in operation.
    Type: Grant
    Filed: October 20, 2014
    Date of Patent: July 26, 2016
    Assignee: MYFC AB
    Inventors: Anders Lundblad, Henrik Ekstrom, Eric Jonsson
  • Patent number: 9373860
    Abstract: To diagnose a fault of a fuel cell stack, an alternating current having a first optimal frequency of a first frequency domain to diagnose a drop in cell voltage and an alternating current having a second optimal frequency of a second frequency domain to diagnose a cause of the drop in cell voltage are supplied to the fuel cell stack are provided. A distortion rate is then calculated based on voltage of the fuel cell stack according to the alternating current of the first optimal frequency, and the drop in cell voltage is diagnosed based on the calculated distortion rate. Also, impedance is calculated based on voltage and a current of the fuel cell stack according to the alternating current of the second optimal frequency and amount of water is calculated based on the calculated in the fuel cell stack, and the cause of the drop in cell voltage is diagnosed based on the calculated impedance and amount of water.
    Type: Grant
    Filed: December 11, 2013
    Date of Patent: June 21, 2016
    Assignee: Kangnam University Industry-Academia Cooperation Foundation
    Inventors: Kwi Seong Jeong, Sae Hoon Kim, Uck Soo Kim, Hyun-Seok Park, Young-hyun Lee
  • Patent number: 9356445
    Abstract: This invention provides a kind of compact type fuel cell supply system, consisting of fuel cell, DCDC converting unit, contactor, energy storage device, controller, auxiliary system, power supply output end, operation control unit, with the contactor being a normal open type high-current contactor, the output end of the fuel cell connecting the input end of DCDC converting unit, the DCDC converting unit connecting the energy storage device through the contactor, the output end of DCDC converting unit also connecting the power supply output end and the high-power auxiliary component that the auxiliary system contains, the port of the energy storage device connecting the power supply output end and auxiliary system through the contactor, the operation control unit connecting the energy storage device, DCDC converting unit, controller respectively, the controller connecting the fuel cell, DCDC converting unit, the control end of contactor, the energy storage device and the auxiliary system respectively.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: May 31, 2016
    Inventor: Xuxu Ge
  • Patent number: 9356470
    Abstract: A method of operating a power adapter that includes an energy storage device and a fuel cell system including a fuel supply and a fuel cell stack, the method including determining a connectivity state of an auxiliary power source and a load with the power adapter, and selecting a power adapter operation mode based on the connection states of the auxiliary power source and the load. The operation modes of the power adapter include at least an auxiliary mode when the auxiliary power source and the load are connected to the power adapter, and a fuel cell mode when the auxiliary power source is disconnected from the power adapter and the load is connected to the power adapter. The auxiliary mode includes providing power from the auxiliary power source to the load, and the fuel cell mode includes providing fuel cell power to the load.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: May 31, 2016
    Assignee: Intelligent Energy Limited
    Inventors: Kei Edgardo Yamamoto, Andrew Philip Gust Peterson, Courtney Aline Helland, Timothy Prowten, Eric Allen Wooley, Daniel Braithwaite, Tibor Fabian, Sergio Glavan
  • Patent number: 9216661
    Abstract: This invention provides a kind of mixed power supply energy management method for fuel battery, including the following steps: initialization; control the output current of DCDC converting unit according to the measured energy storage device voltage and the actual current outputted by the DCDC converting unit, respond to the energy need resulting from load condition change and at the same time ensure the energy storage device to be in a best charge state; send a current setting instruction to the DCDC converting unit. This invention does not adopt the SOC calculation mode any more, the system no longer relies on the accuracy, reliability of current sensor; and this invention is strongly compatible, highly reliable, strongly practical and stable in output voltage, with the same system being applicable to more vehicles of different models (forklift) and parameter correction being unnecessary.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: December 22, 2015
    Inventor: Xuxu Ge
  • Patent number: 9083014
    Abstract: A fuel cell system of the present invention comprises a fuel cell (101); a first heat medium path through which a first heat medium for cooling the fuel cell (101) flows; a first flow control device (107) configured to flow the first heat medium in the first heat medium path; an abnormality detector configured to detect an abnormality; and a controller (110) configured to control the first flow control device (107) such that the fuel cell (101) after shut-down of power generation is cooled with a higher rate in an abnormal shut-down process performed after the abnormality detector detects the abnormality, than in a normal shut-down process.
    Type: Grant
    Filed: November 20, 2009
    Date of Patent: July 14, 2015
    Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
    Inventors: Yoshio Tamura, Yoshikazu Tanaka, Kiyoshi Taguchi, Shigeki Yasuda
  • Publication number: 20150147670
    Abstract: A suitable control in a system provided with a solid oxide fuel cell at the time of paralleling-off from a grid power source and switching to an autonomous operation, is provided. The generated electric power of the solid oxide fuel cell during the autonomous operation is set to a constant electric power (500 W or the like), and when the total load electric power of the system exceeds the constant electric power (500 W or the like), the electric power supply to the external load connected to an autonomous dedicated outlet is stopped for a predetermined period of time. The external load electric power is adjusted during the stop to reduce the total electric power load to be equal to or less than the constant electric power, and the electric power supply is resumed after the predetermined period of time has elapsed.
    Type: Application
    Filed: June 14, 2013
    Publication date: May 28, 2015
    Applicant: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Kazuhiro Inoue, Takuo Nishiyama
  • Patent number: 9040204
    Abstract: A microbial fuel cell comprising: a first cathode; at least two anodes electrically connected to each other and to the cathode in a reconfigurable manner; and a processor operatively coupled to the anodes and configured to monitor a parameter of each anode to determine if a given anode has been oxygen-contaminated, and further configured to convert an oxygen-contaminated anode into a second cathode by reconfiguring the electrical connections.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: May 26, 2015
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Wayne P. Liu, David Bartholomew Chadwick, Kenneth E. Richter, Adriane Q. Wotawa-Bergen, Jeffrey Asher Kagan
  • Patent number: 9034531
    Abstract: The current invention is a fuel cell controller that includes a first control loop, where the first control loop is disposed to adjust a fuel cell current to regulate a hydrogen output pressure from the fuel cell to a pressure target valve, and further includes a second control loop disposed to adjust a hydrogen flow rate from a hydrogen generator to match a DC/DC power output to a power target value.
    Type: Grant
    Filed: August 26, 2009
    Date of Patent: May 19, 2015
    Assignee: Ardica Technologies, Inc.
    Inventors: Tibor Fabian, Tobin J. Fisher, Daniel Braithwaite
  • Patent number: 9034533
    Abstract: A fuel cell has a structure in which generation modules are stacked. In each of the generation modules, there are cells are stacked. Each of the cells generates unitary power from fuel energy. A fuel cell system including the fuel stack operates either all or some of the generation modules in consideration of the quantity of power consumed by a load.
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: May 19, 2015
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jung Seok Yi, Tae-won Song, Hee-young Sun
  • Patent number: 9029029
    Abstract: A fuel cell system, and a method of controlling an operation of a plurality of fuel cells. The fuel cell system controls the operation of the plurality of fuel cells according to a power consumed in a load and the performance of the plurality of fuel cells, thereby increasing a power conversion efficiency of the plurality of fuel cells while preventing considerable performance degradation of the plurality of fuel cells. The fuel cell system includes: a plurality of fuel cells; a control unit controlling an operation of the plurality of fuel cells according to a power consumed in a load and the performance of the plurality of fuel cells; and a converter converting a power output by at least one of the plurality of fuel cells into a power according to the control of the control unit.
    Type: Grant
    Filed: March 26, 2010
    Date of Patent: May 12, 2015
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Lei Hu, Young-Jae Kim, Hye-Jung Cho