Patents by Inventor Shinya SAGAWA

Shinya SAGAWA 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: 11964620
    Abstract: A vehicular power supply device to be equipped in a vehicle includes an electric storage unit group, an inverter, a driving motor, a converter, an electric device group, a first switch, and a second switch. The electric storage unit group includes first and second electric storage units. The driving motor is to be coupled to the electric storage unit group via the inverter. The electric device group is to be coupled to the electric storage unit group via the converter. The first switch is to be controlled between a state where the first electric storage unit is coupled to the inverter and a state where the first electric storage unit is coupled to the converter. The second switch is to be controlled between a state where the second electric storage unit is coupled to the inverter and a state where the second electric storage unit is coupled to the converter.
    Type: Grant
    Filed: July 8, 2021
    Date of Patent: April 23, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Shinya Sagawa, Kazuki Makino
  • Patent number: 11891000
    Abstract: A vehicular power supply device includes an inverter, a converter, a driving motor, an electric device group, a first electric storage unit to be coupled to the driving motor via the inverter, a second electric storage unit to be coupled to an electric device group via the converter, an electric power converter, first and second switches, and a switch controller. The electric power converter is provided between the two electric storage units and couples them in parallel with each other. The first switch is provided between the first electric storage unit and the electric power converter and is controllable between on and off states. The second switch is provided between the second electric storage unit and the electric power converter and is controllable between on and off states. The switch controller controls the first and second switches based on a state of charge of the first electric storage unit.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: February 6, 2024
    Assignee: SUBARU CORPORATION
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Kazuki Makino, Shinya Sagawa
  • Patent number: 11654881
    Abstract: A control apparatus is configured to control a vehicle. The vehicle includes an engine, a generator configured to generate electric power by using motive power outputted from the engine, and a drive motor coupled to a drive wheel. The engine, the generator, and the drive motor are coupled to each other via a planetary gear mechanism. The control apparatus includes a processor configured to diagnose a state of at least one of the engine, the generator, or the drive motor on the basis of a relationship between a rotational speed of the engine, a rotational speed of the generator, and a rotational speed of the drive motor.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: May 23, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Hiroyuki Suzuki, Itaru Seta, Yosuke Ohtomo, Masaki Komuro, Shinya Sagawa, Takashi Kono, Kazuki Makino
  • Patent number: 11641125
    Abstract: A vehicular power supply device to be applied to a vehicle includes an electric storage unit group, a charger, first and second switches, and a switch controller. The electric storage unit group includes a first electric storage unit and a second electric storage unit having higher internal resistance than the first electric storage unit. The charger is coupled to the electric storage unit group and charges one or both of the first electric storage unit and second electric storage unit. The first switch is provided between the first electric storage unit and the charger and controlled between an on state and an off state. The second switch is provided between the second electric storage unit and the charger and controlled between an on state and an off state. The switch controller controls the first and second switches based on a temperature of the electric storage unit group.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: May 2, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komura, Takashi Kono, Kazuki Makino, Shinya Sagawa
  • Patent number: 11541767
    Abstract: A vehicle power supply includes an electric accumulator pack, an electric motor, first and second switches, an output determiner, and a switch controller. The electric accumulator pack includes first and second electric accumulators. The first and second switches are controlled between on- and off-states. The output determiner determines whether the first electric accumulator is in a first output state or a second output state, and whether the second electric accumulator is in the first output state or the second output state. If at least one of the first electric accumulator or the second electric accumulator is in the first output state, the switch controller controls either one of the first and second switches to the on-state, and the other switch to the off-state. If both the first and second electric accumulators are in the second output state, the switch controller controls both the first and second switches to the on-state.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: January 3, 2023
    Assignee: SUBARU CORPORATION
    Inventors: Kazuki Makino, Itaru Seta, Yosuke Ohtomo, Hiroyuki Suzuki, Takashi Kono, Shinya Sagawa, Masaki Komuro, Masakazu Yoshino
  • Publication number: 20220396282
    Abstract: A vehicle control apparatus includes an electric motor, an engine, and a control system. The control system executes a first speed mode or a second speed mode as a speed mode of the transmission on the basis of a driving operation performed by a driver, sets a speed ratio on a lower side in the second speed mode than in the first speed mode in a case where an accelerator operation performed by the driver is cancelled, executes a first assist mode or a second assist mode as an assist mode in which the electric motor is brought into a power-running state, and switches the assist mode to the second assist mode in a case where the amount of the accelerator operation is increased greater than a starting threshold while the second speed mode is being executed.
    Type: Application
    Filed: May 27, 2022
    Publication date: December 15, 2022
    Inventors: Masaki KOMURO, Shigemoto HORIE, Shin SAWANO, Shinya SAGAWA
  • Patent number: 11485345
    Abstract: A vehicle control apparatus, configured to control a vehicle, includes an engine that is configured to drive wheels via a power transmission device. The vehicle control apparatus includes a towing state detector and an engine controller. The towing state detector is configured to detect whether the vehicle is in a towing state. The engine controller is configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle. The engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: November 1, 2022
    Assignee: SUBARU CORPORATION
    Inventors: Kyousuke Kuroda, Mitsuo Aoki, Yoshitsugu Inoue, Shinya Sagawa, Tomoyuki Yamamuro, Akihito Katsume
  • Publication number: 20220118964
    Abstract: A control apparatus is configured to control a vehicle. The vehicle includes an engine, a generator configured to generate electric power by using motive power outputted from the engine, and a drive motor coupled to a drive wheel. The engine, the generator, and the drive motor are coupled to each other via a planetary gear mechanism. The control apparatus includes a processor configured to diagnose a state of at least one of the engine, the generator, or the drive motor on the basis of a relationship between a rotational speed of the engine, a rotational speed of the generator, and a rotational speed of the drive motor.
    Type: Application
    Filed: October 15, 2021
    Publication date: April 21, 2022
    Applicant: SUBARU CORPORATION
    Inventors: Hiroyuki SUZUKI, Itaru SETA, Yosuke OHTOMO, Masaki KOMURO, Shinya SAGAWA, Takashi KONO, Kazuki MAKINO
  • Publication number: 20220089051
    Abstract: A vehicle power supply includes an electric accumulator pack, an electric motor, first and second switches, an output determiner, and a switch controller. The electric accumulator pack includes first and second electric accumulators. The first and second switches are controlled between on- and off-states. The output determiner determines whether the first electric accumulator is in a first output state or a second output state, and whether the second electric accumulator is in the first output state or the second output state. If at least one of the first electric accumulator or the second electric accumulator is in the first output state, the switch controller controls either one of the first and second switches to the on-state, and the other switch to the off-state. If both the first and second electric accumulators are in the second output state, the switch controller controls both the first and second switches to the on-state.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 24, 2022
    Inventors: Kazuki Makino, Itaru Seta, Yasuke Ohtomo, Hiroyuki Suzuki, Takashi Kono, Shinya Sagawa, Masaki Komuro, Masakazu Yoshino
  • Publication number: 20220085639
    Abstract: A vehicular power supply device to be applied to a vehicle includes an electric storage unit group, a charger, first and second switches, and a switch controller. The electric storage unit group includes a first electric storage unit and a second electric storage unit having higher internal resistance than the first electric storage unit. The charger is coupled to the electric storage unit group and charges one or both of the first electric storage unit and second electric storage unit. The first switch is provided between the first electric storage unit and the charger and controlled between an on state and an off state. The second switch is provided between the second electric storage unit and the charger and controlled between an on state and an off state. The switch controller controls the first and second switches based on a temperature of the electric storage unit group.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 17, 2022
    Inventors: Itaru SETA, Hiroyuki SUZUKI, Yosuke OHTOMO, Masaki KOMURA, Takashi KONO, Kazuki MAKINO, Shinya SAGAWA
  • Publication number: 20220080909
    Abstract: A vehicular power supply device includes an inverter, a converter, a driving motor, an electric device group, a first electric storage unit to be coupled to the driving motor via the inverter, a second electric storage unit to be coupled to an electric device group via the converter, an electric power converter, first and second switches, and a switch controller. The electric power converter is provided between the two electric storage units and couples them in parallel with each other. The first switch is provided between the first electric storage unit and the electric power converter and is controllable between on and off states. The second switch is provided between the second electric storage unit and the electric power converter and is controllable between on and off states. The switch controller controls the first and second switches based on a state of charge of the first electric storage unit.
    Type: Application
    Filed: August 25, 2021
    Publication date: March 17, 2022
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Kazuki Makino, Shinya Sagawa
  • Publication number: 20220080908
    Abstract: A vehicular power supply device to be equipped in a vehicle includes an electric storage unit group, an inverter, a driving motor, a converter, an electric device group, a first switch, and a second switch. The electric storage unit group includes first and second electric storage units. The driving motor is to be coupled to the electric storage unit group via the inverter. The electric device group is to be coupled to the electric storage unit group via the converter. The first switch is to be controlled between a state where the first electric storage unit is coupled to the inverter and a state where the first electric storage unit is coupled to the converter. The second switch is to be controlled between a state where the second electric storage unit is coupled to the inverter and a state where the second electric storage unit is coupled to the converter.
    Type: Application
    Filed: July 8, 2021
    Publication date: March 17, 2022
    Inventors: Itaru Seta, Hiroyuki Suzuki, Yosuke Ohtomo, Masaki Komuro, Takashi Kono, Shinya Sagawa, Kazuki Makino
  • Publication number: 20220076509
    Abstract: A malfunction diagnosing system includes a data acquirer, an appropriate range setter, and a malfunction determiner. The data acquirer is configured to acquire traveling environment data and actual traveling result data in association with each other for a target vehicle to be subjected to malfunction diagnosis. The traveling environment data includes at least driving operation data indicating a driving operation. The actual traveling result data indicates an actual traveling result based on the traveling environment data. The appropriate range setter is configured to derive an appropriate range of actual traveling results based on the traveling environment data for vehicles the models of which are identical to a model of the target vehicle. The malfunction determiner is configured to determine whether the target vehicle has a malfunction by determining whether the actual traveling result data falls within the appropriate range.
    Type: Application
    Filed: August 20, 2021
    Publication date: March 10, 2022
    Applicant: SUBARU CORPORATION
    Inventors: Masaki KOMURO, Hiroyuki SUZUKI, Yosuke OHTOMO, Takumi HOSHI, Takashi KONO, Kazuki MAKINO, Masakazu YOSHINO, Itaru SETA, Shinya SAGAWA
  • Patent number: 10995850
    Abstract: A vehicle includes a transmission shiftable by hydraulic pressure, a main oil passage that delivers operating oil, a first oil passage that delivers the operating oil from the main oil passage to the transmission, a first valve that opens/closes the first oil passage, a controller that controls the first valve, a second oil passage that delivers the operating oil from the main oil passage to the transmission, and a manually drivable second valve that opens/closes a section of the first oil passage that is closer to the main oil passage than the first valve and the second oil passage. The second valve is switchable between the automatic control state in which the first oil passage is opened and the second oil passage is closed and the manual control state in which the first oil passage is closed and the second oil passage is opened.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: May 4, 2021
    Assignee: SUBARU CORPORATION
    Inventors: Yoshitsugu Inoue, Mitsuo Aoki, Kyousuke Kuroda, Tomoyuki Yamamuro, Akihito Katsume, Shinya Sagawa
  • Publication number: 20200166124
    Abstract: A vehicle includes a transmission shiftable by hydraulic pressure, a main oil passage that delivers operating oil, a first oil passage that delivers the operating oil from the main oil passage to the transmission, a first valve that opens/closes the first oil passage, a controller that controls the first valve, a second oil passage that delivers the operating oil from the main oil passage to the transmission, and a manually drivable second valve that opens/closes a section of the first oil passage that is closer to the main oil passage than the first valve and the second oil passage. The second valve is switchable between the automatic control state in which the first oil passage is opened and the second oil passage is closed and the manual control state in which the first oil passage is closed and the second oil passage is opened.
    Type: Application
    Filed: November 1, 2019
    Publication date: May 28, 2020
    Inventors: Yoshitsugu INOUE, Mitsuo AOKI, Kyousuke KURODA, Tomoyuki YAMAMURO, Akihito KATSUME, Shinya SAGAWA
  • Publication number: 20200086846
    Abstract: A vehicle control apparatus, configured to control a vehicle, includes an engine that is configured to drive wheels via a power transmission device. The vehicle control apparatus includes a towing state detector and an engine controller. The towing state detector is configured to detect whether the vehicle is in a towing state. The engine controller is configured to stop the engine in a case where a predetermined engine stopping condition is satisfied during traveling of the vehicle. The engine controller is configured to vary, in a case where the towing state detector detects that the vehicle is in the towing state, the predetermined engine stopping condition to reduce an operational range in which the engine is to be stopped compared with an operational range in a case where the towing state detector does not detect that the vehicle is in the towing state.
    Type: Application
    Filed: June 24, 2019
    Publication date: March 19, 2020
    Inventors: Kyousuke KURODA, Mitsuo AOKI, Yoshitsugu INOUE, Shinya SAGAWA, Tomoyuki YAMAMURO, Akihito KATSUME