Patents by Inventor Satoru Kawase

Satoru Kawase has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 11472298
    Abstract: A vehicle is provided with an interior chamber apart from a passenger compartment, and a container chamber in which a high pressure gas container is accommodated. A heat generating body is accommodated in the interior chamber. Further, in the vehicle, there are formed introduction ports through which atmospheric air is introduced into the interior chamber, a communication passage that enables communication between the interior chamber and the container chamber, and a lead-out port through which the atmospheric air is led out from the container chamber. The atmospheric air that is introduced into the interior chamber through the introduction ports flows into the container chamber via the communication passage, and furthermore, is led out to the exterior of the container chamber from the lead-out port.
    Type: Grant
    Filed: January 8, 2020
    Date of Patent: October 18, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Naoki Ogiwara, Toshihiko Kanezaki, Takatsugu Koyama
  • Patent number: 11473727
    Abstract: In a high pressure gas container including a liner, a reinforcement layer, bosses (caps), and openings (vent holes), the reinforcement layer includes an inner side reinforcement layer that surrounds the liner, and an outer side reinforcement layer that surrounds the inner side reinforcement layer, gas guide passages that guide, to the openings (vent holes), a gas leaking from the liner are formed in the inner side reinforcement layer, and the gas guide passages are voids formed between sections of a reinforcing member by arranging alongside one another and stacking the sections of the reinforcing member along the liner.
    Type: Grant
    Filed: June 24, 2020
    Date of Patent: October 18, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Naoki Ogiwara
  • Patent number: 11476476
    Abstract: A fuel cell system includes a plurality of electricity generation systems and a connection flow path through which fuel flows between the plurality of electricity generation systems. Each electricity generation system includes a fuel tank, a fuel cell stack, a fuel flow path, a first pressure sensor, a shutoff valve, a control device, and a branch portion. The first pressure sensor is arranged in the fuel flow path and detects a fuel pressure on the fuel tank side. The shutoff valve is arranged on a downstream side of the first pressure sensor in the fuel flow path, and is switched between flow and shutoff of the fuel by opening and closing. The branch portion branches from the fuel flow path on a downstream side of the shutoff valve in the fuel flow path. The connection flow path connects the mutual branch portions of the plurality of electricity generation systems.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: October 18, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoru Kawase, Takanori Mori, Shinji Matsunaga
  • Publication number: 20220320538
    Abstract: A fuel cell power system includes a plurality of fuel cell systems that include a fuel cell stack and a fuel tank for storing fuel gas and supplying the fuel gas to the fuel cell stack. The fuel cell power system includes an auxiliary machine that is connected to be electrically switchable to any of the plurality of fuel cell system, and consume electric power output from the plurality of fuel cell systems. The fuel cell power system includes a control device that switches the fuel cell system to which the auxiliary machine is connected, on the basis of the states of the plurality of the fuel cell systems.
    Type: Application
    Filed: February 24, 2022
    Publication date: October 6, 2022
    Inventors: Kenji TARUYA, Satoru KAWASE, Ryo JIMBA, Ryota KITAMOTO, Yoshinaka HIRATA
  • Publication number: 20220311028
    Abstract: A fuel cell vehicle includes a fuel cell stack, a fuel tank that stores fuel gas to be supplied to the fuel cell stack, a tank chamber that houses the fuel tank, a gas filling port that fills the fuel tank with fuel gas from outside of the vehicle, a filling lid box that includes a housing chamber and a lid member and is provided above the tank chamber, a fuel gas sensor that is arranged in the tank chamber, and a duct that allows the housing chamber and the tank chamber to communicate with each other.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 29, 2022
    Inventors: Satoru KAWASE, Akira YAMADA
  • Patent number: 11394041
    Abstract: A computation unit of a residual pressure determination system obtains a corresponding usage limit threshold value corresponding to a measured temperature value of a tank temperature, from a usage limit threshold value line calculated using at least one of a required minimum residual pressure line and an isopycnic line. When having determined that a measured internal pressure value has decreased to the corresponding usage limit threshold value, a determination unit stops release of hydrogen gas from a high pressure tank. A tank internal pressure indicated by the usage limit threshold value line within an allowable temperature range becomes greater than or equal to the tank internal pressure indicated by the isopycnic line or that indicated by a tangent line, and at least a portion of the tank internal pressure indicated by the usage limit threshold value line within the allowable temperature range becomes lower as the tank temperature becomes lower.
    Type: Grant
    Filed: February 7, 2020
    Date of Patent: July 19, 2022
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Kazuyuki Kadowaki
  • Patent number: 11292336
    Abstract: A vehicle equipped with a high pressure tank has mounted in the interior of a vehicle body a high pressure tank having a resin liner and a reinforced layer, the vehicle comprising a tank chamber, a filling port, a concave portion in which the filling port and a ventilation port are disposed, a fuel lid capable of opening and closing an opening of the concave portion, and a ventilation passage that allows communication between the ventilation port and the tank chamber. When the fuel lid is opened, the ventilation port is opened to the exterior of the vehicle body, whereas when the fuel lid is closed, the ventilation port is covered by the fuel lid in a state in which the ventilation port is allowed to communicate with the exterior of the vehicle body.
    Type: Grant
    Filed: January 27, 2020
    Date of Patent: April 5, 2022
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoru Kawase, Naoki Ogiwara, Kazuyuki Kadowaki
  • Publication number: 20220069321
    Abstract: A fuel cell system includes a plurality of electricity generation systems and a connection flow path through which fuel flows between the plurality of electricity generation systems. Each electricity generation system includes a fuel tank, a fuel cell stack, a fuel flow path, a first pressure sensor, a shutoff valve, a control device, and a branch portion. The first pressure sensor is arranged in the fuel flow path and detects a fuel pressure on the fuel tank side. The shutoff valve is arranged on a downstream side of the first pressure sensor in the fuel flow path, and is switched between flow and shutoff of the fuel by opening and closing. The branch portion branches from the fuel flow path on a downstream side of the shutoff valve in the fuel flow path. The connection flow path connects the mutual branch portions of the plurality of electricity generation systems.
    Type: Application
    Filed: September 2, 2021
    Publication date: March 3, 2022
    Applicant: Honda Motor Co., Ltd.
    Inventors: Satoru KAWASE, Takanori MORI, Shinji MATSUNAGA
  • Publication number: 20220013796
    Abstract: A fuel cell system for a vehicle includes a plurality of unit fuel cell groups, which are connected, each of unit fuel cell groups including a hydrogen tank, a fuel cell and a fuel cell controller configured to control power generation of the fuel cell, a tank controller configured to control filling and discharge of hydrogen in the hydrogen tank of each of at least two of the unit fuel cell groups, each of the unit fuel cell groups includes a hydrogen supply line configured to bring hydrogen to the fuel cell, the hydrogen supply lines of the at least two unit fuel cell groups are linked with each other, and the tank controller stops supply of hydrogen into the fuel cell of a unit fuel cell group in which an abnormality has been detected.
    Type: Application
    Filed: July 2, 2021
    Publication date: January 13, 2022
    Inventors: Daishi Igarashi, Satoru Kawase, Kentaro Miura, Shinji Matsunaga
  • Patent number: 11204133
    Abstract: If an abnormality detecting unit detects an output abnormality of an internal temperature sensor, a discharge control unit obtains the amount of discharge (a limit value L of gas flow rate F) on the basis of an ambient temperature measured by an ambient temperature sensor, and controls the discharge of fuel gas on the basis of the obtained amount of discharge.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: December 21, 2021
    Assignee: Honda Motor Co., Ltd.
    Inventors: Satoru Kawase, Makoto Wada, Kazuyuki Kadowaki
  • Publication number: 20210384533
    Abstract: In a gas supply system of one embodiment, a gas control ECU performs an initial monitoring step of comparing first detection information of a high-pressure sensor to a first threshold value and, after it is determined that the first detection information has become less than or equal to the first threshold value, performs a secondary monitoring step of comparing second detection information of a mid-pressure sensor to a second threshold value. The gas control ECU causes a valve-open period and a valve-closed period of an injector in the secondary monitoring step to be longer than the valve-open period and the valve-closed period of the injector in the initial monitoring step.
    Type: Application
    Filed: June 4, 2021
    Publication date: December 9, 2021
    Inventors: Satoru KAWASE, Kazuyuki KADOWAKI, Koichi TAKAKU
  • Publication number: 20210372572
    Abstract: In a gas supply system of one embodiment, if first detection information of a high-pressure sensor exceeds a first threshold value, a gas control ECU causes a pressure adjustment range to overlap a second error range of second detection information of a mid-pressure sensor, the second error range being defined with a second threshold value as a reference point. If the first detection information is less than or equal to the first threshold value, the gas control ECU offsets the pressure adjustment range relative to the second error range defined with the second threshold value as the reference point.
    Type: Application
    Filed: May 25, 2021
    Publication date: December 2, 2021
    Inventors: Kazuyuki KADOWAKI, Koichi TAKAKU, Satoru KAWASE
  • Patent number: 11177492
    Abstract: A method for controlling a fuel cell vehicle including a fuel cell to generate electric power via an electrochemical reaction between fuel gas and oxidant gas, the method includes determining whether the fuel cell vehicle is in a fuel supply state in which the fuel gas is supplied from an outside of the fuel cell vehicle into a fuel storage chamber via a filling lid box of the fuel cell vehicle. It is determined that the fuel gas does not leak, even if a fuel gas detector provided in the filling lid box detects the fuel gas when the fuel cell vehicle is in the fuel supply state.
    Type: Grant
    Filed: April 20, 2017
    Date of Patent: November 16, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Satoru Kawase, Koichi Takaku, Takatsugu Koyama
  • Publication number: 20210190267
    Abstract: If an abnormality detecting unit detects an output abnormality of an internal temperature sensor, a discharge control unit obtains the amount of discharge (a limit value L of gas flow rate F) on the basis of an ambient temperature measured by an ambient temperature sensor, and controls the discharge of fuel gas on the basis of the obtained amount of discharge.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 24, 2021
    Inventors: Satoru KAWASE, Makoto WADA, Kazuyuki KADOWAKI
  • Publication number: 20210170912
    Abstract: In a fuel cell vehicle and a method of controlling the fuel cell vehicle, when a gas pressure in a high pressure tank becomes less than a first threshold pressure, the SOC of an energy storage device is increased to a margin SOC. When the gas pressure becomes a second threshold pressure which is lower than the first threshold pressure, the amount of fuel released from the high pressure tank is limited to prevent the occurrence of buckling, and limit the travel driving force by the motor to a required limit. At the time of limiting the travel driving force, electrical energy of the energy storage device is used to provide assistance in a manner that the travel driving force by the motor becomes the travel driving force of the required limit.
    Type: Application
    Filed: December 3, 2020
    Publication date: June 10, 2021
    Inventors: Satoru KAWASE, Toshihiko KANEZAKI, Kentaro MIURA, Kazuo MIYAGAWA, Kazuyuki KADOWAKI
  • Patent number: 10890296
    Abstract: A high pressure tank device includes a high pressure tank configured to supply/discharge a fluid through a supply/discharge channel, a first storage part, a leakage detection sensor provided in the first storage part for detecting leakage of the fluid, and a second storage part. The high pressure tank includes a resin liner, a reinforcement layer which covers an outer surface of the liner, and a cap having a supply/discharge hole. The first storage part can store a first fluid. The first fluid is at least one of the fluid that leaked from the supply/discharge channel and the fluid that leaked through the inside of the supply/discharge hole. The second storage part is provided independently from the first storage part, and can store a second fluid. The second fluid is the fluid that leaked from the outside of the supply/discharge hole.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: January 12, 2021
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20200408360
    Abstract: In a high pressure gas container including a liner, a reinforcement layer, bosses (caps), and openings (vent holes), the reinforcement layer includes an inner side reinforcement layer that surrounds the liner, and an outer side reinforcement layer that surrounds the inner side reinforcement layer, gas guide passages that guide, to the openings (vent holes), a gas leaking from the liner are formed in the inner side reinforcement layer, and the gas guide passages are voids formed between sections of a reinforcing member by arranging alongside one another and stacking the sections of the reinforcing member along the liner.
    Type: Application
    Filed: June 24, 2020
    Publication date: December 31, 2020
    Inventors: Satoru KAWASE, Naoki OGIWARA
  • Patent number: 10794535
    Abstract: A high pressure tank includes: a resin liner for containing a fluid; a reinforced layer covering an outer surface of the liner; a cap including a supply/discharge hole to supply and discharge the fluid to and from the liner; a barrier layer; and an isolation wall member. The cap includes a cylindrical protrusion having the supply/discharge hole. The barrier layer covers an outer surface of the reinforced layer to block all or at least part of the fluid, and includes an opening to expose the protrusion. The isolation wall member forms a closed space accommodating the protrusion and the opening of the barrier layer.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: October 6, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Patent number: 10781977
    Abstract: A high pressure tank includes: a resin liner for containing a fluid; a reinforced layer covering an outer surface of the liner; a cap including a supply/discharge hole to supply and discharge the fluid to and from the liner; an isolation wall member; and a communication unit. The cap includes a cylindrical protrusion having the supply/discharge hole formed therein. An opening is formed in the reinforced layer to expose the protrusion. The isolation wall member encloses the protrusion and the opening, and forms a closed space. The communication unit communicates with the closed space.
    Type: Grant
    Filed: March 14, 2018
    Date of Patent: September 22, 2020
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Naoki Ogiwara, Satoru Kawase
  • Publication number: 20200259195
    Abstract: A computation unit of a residual pressure determination system obtains a corresponding usage limit threshold value corresponding to a measured temperature value of a tank temperature, from a usage limit threshold value line calculated using at least one of a required minimum residual pressure line and an isopycnic line. When having determined that a measured internal pressure value has decreased to the corresponding usage limit threshold value, a determination unit stops release of hydrogen gas from a high pressure tank. A tank internal pressure indicated by the usage limit threshold value line within an allowable temperature range becomes greater than or equal to the tank internal pressure indicated by the isopycnic line or that indicated by a tangent line, and at least a portion of the tank internal pressure indicated by the usage limit threshold value line within the allowable temperature range becomes lower as the tank temperature becomes lower.
    Type: Application
    Filed: February 7, 2020
    Publication date: August 13, 2020
    Inventors: Satoru Kawase, Kazuyuki Kadowaki