Patents by Inventor Yushi SEKI

Yushi SEKI 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: 11442447
    Abstract: A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level.
    Type: Grant
    Filed: June 10, 2020
    Date of Patent: September 13, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito Endo, Yasuhiro Oshiumi, Kensei Hata, Yasuyuki Kato, Yushi Seki, Katsuya Iwazaki, Hideaki Komada
  • Publication number: 20220173448
    Abstract: A battery cooling system includes: a cooling circuit; a power transmission device disposed in the cooling circuit, the power transmission device including a gear; a drivetrain oil having an electric insulating property and being used for lubrication of the gear, the drivetrain oil circulating in the cooling circuit; a battery unit disposed in the cooling circuit, the battery unit including a module case that houses a plurality of battery cells; a pump disposed in the cooling circuit; and a radiator disposed in the cooling circuit, the radiator releasing heat from the drivetrain oil flowing in the cooling circuit. The drivetrain oil performs direct heat exchange inside the power transmission device and flows through an inside of the module case and performs direct heat exchange with the battery cells.
    Type: Application
    Filed: February 16, 2022
    Publication date: June 2, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke TOKOZAKURA, Satoshi TOMINAGA, Yushi SEKI
  • Patent number: 11289747
    Abstract: A battery cooling system includes: a cooling circuit; a power transmission device disposed in the cooling circuit, the power transmission device including a gear; a drivetrain oil having an electric insulating property and being used for lubrication of the gear, the drivetrain oil circulating in the cooling circuit; a battery unit disposed in the cooling circuit, the battery unit including a module case that houses a plurality of battery cells; a pump disposed in the cooling circuit; and a radiator disposed in the cooling circuit, the radiator releasing heat from the drivetrain oil flowing in the cooling circuit. The drivetrain oil performs direct heat exchange inside the power transmission device and flows through an inside of the module case and performs direct heat exchange with the battery cells.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: March 29, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daisuke Tokozakura, Satoshi Tominaga, Yushi Seki
  • Publication number: 20220050456
    Abstract: A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level.
    Type: Application
    Filed: October 29, 2021
    Publication date: February 17, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito ENDO, Yasuhiro OSHIUMI, Kensei HATA, Yasuyuki KATO, Yushi SEKI, Katsuya IWAZAKI, Hideaki KOMADA
  • Patent number: 11199857
    Abstract: A vehicle management apparatus includes: a communication unit communicating with a vehicle with lodging capability; a vehicle management control unit creating a travel plan based on information transmitted from a user terminal operated by a user, and managing travel of the vehicle; and an emergency vehicle management unit managing so that an emergency vehicle is deployed at a position so as to arrive at a route, on which the vehicle moves according to the travel plan, within a predetermined arrival time.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: December 14, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Katsuya Terahata, Yushi Seki, Yoshihiro Sakayanagi, Koichi Ueda, Shuntaro Shinohara, Ryoko Hashimoto
  • Patent number: 11065974
    Abstract: A vehicle control system for an autonomous vehicle configured to charge a battery by an external power source during propulsion while preventing a deterioration of the battery. A controller detects a charging zone where the electric storage device can be charged by the external power source, and restricts at least any one of a charging of the electric storage device and a discharging of electricity from the electric storage device so as to limit a load factor of the electric storage device to be smaller than a predetermined limit value when the vehicle passes through the charging zone.
    Type: Grant
    Filed: April 4, 2019
    Date of Patent: July 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Kodera, Takahito Endo, Kensei Hata, Yushi Seki
  • Patent number: 11035280
    Abstract: A CO2 trapping device mounted in a hybrid vehicle, provided with a branch passage branched from an exhaust passage, a CO2 trapping part provided at the branch passage and trapping CO2 in inflowing exhaust gas, a cooling part using electric power of the battery to cool the CO2 trapping part, a flow controlling part controlling an amount of flow of the exhaust gas flowing into the branch passage, and a CO2 trapping control part controlling the cooling part and the flow controlling part, the CO2 trapping control part controlling the flow controlling part so as to make the cooling part stop cooling and to shut off the flow of the exhaust gas to the CO2 trapping part when a charging rate of the battery becomes a predetermined SOC threshold value or less.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: June 15, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kiyoshi Fujihara, Kouseki Sugiyama, Hiroshi Ohtsuki, Daiki Yokoyama, Yushi Seki
  • Patent number: 11029689
    Abstract: A vehicle control system configured to maintain detection accuracy of an external sensor such as an on-board camera. The vehicle control system is applied to a vehicle that can be operated autonomously. A controller communicates with a database stored on the controller and a database stored on an external facility. The controller changes orientation of a headlamp toward an object detected by an on-board camera, in a case that the headlamp is turned on, and that information about the object detected by the on-board camera is not available in the database.
    Type: Grant
    Filed: September 5, 2018
    Date of Patent: June 8, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kensei Hata, Hiroaki Kodera, Takahito Endo, Naoki Harayama, Katsuya Iwazaki, Yushi Seki, Hideaki Komada
  • Patent number: 10981580
    Abstract: A vehicle control apparatus includes: an information acquisition unit acquiring feature information indicating a feature regarding vehicle driving of an occupant of a vehicle; and a control unit changing at least one property included in a driving property or a manipulation property in the vehicle. Further, the control unit changes at least one property included in the driving property or the manipulation property of the vehicle, from a basic property of the vehicle to a property reflecting the feature information, based on the feature information, and brings the changed property close to the basic property of the vehicle in accordance with at least one of an integrated value of boarding hours, an integrated value of running distances, and the number of boardings of the vehicle of the occupant.
    Type: Grant
    Filed: March 11, 2019
    Date of Patent: April 20, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Kodera, Takahito Endo, Kensei Hata, Katsuya Iwazaki, Yushi Seki
  • Patent number: 10938278
    Abstract: There are provided in-wheel motors lubricated with an oil; a cooling medium circuit in which a cooling medium flows; a cooling device cooling the cooling medium; heat exchangers carrying out heat exchange between the cooling medium and the oil after lubricating the in-wheel motors; and at least one of a controller including an inverter and a battery that can be cooled by the cooling medium flowing through the cooling medium circuit, and the cooling medium circuit has such a configuration that circulates the cooling medium through the cooling device, at least one of the controller and the battery, and the heat exchangers in turn.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: March 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Tominaga, Daisuke Tokozakura, Yushi Seki
  • Patent number: 10908617
    Abstract: A vehicle platooning system to operate vehicles in a platoon in an appropriate order. The vehicle platooning system is applied to a vehicle that can be operated autonomously. A controller obtains information about each of the vehicles participating in the platoon including a straight line stability upon satisfaction of a condition to form a platoon with other vehicles, and assigns the vehicle having a relatively good straight line stability to a leader vehicle in the platoon.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: February 2, 2021
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroaki Kodera, Takahito Endo, Kensei Hata, Naoki Harayama, Katsuya Iwazaki, Yushi Seki
  • Publication number: 20200400058
    Abstract: A CO2 trapping device mounted in a hybrid vehicle, provided with a branch passage branched from an exhaust passage, a CO2 trapping part provided at the branch passage and trapping CO2 in inflowing exhaust gas, a cooling part using electric power of the battery to cool the CO2 trapping part, a flow controlling part controlling an amount of flow of the exhaust gas flowing into the branch passage, and a CO2 trapping control part controlling the cooling part and the flow controlling part, the CO2 trapping control part controlling the flow controlling part so as to make the cooling part stop cooling and to shut off the flow of the exhaust gas to the CO2 trapping part when a charging rate of the battery becomes a predetermined SOC threshold value or less.
    Type: Application
    Filed: May 28, 2020
    Publication date: December 24, 2020
    Inventors: Kiyoshi FUJIHARA, Kouseki SUGIYAMA, Hiroshi OHTSUKI, Daiki YOKOYAMA, Yushi SEKI
  • Publication number: 20200301416
    Abstract: A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 24, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito ENDO, Yasuhiro OSHIUMI, Kensei HATA, Yasuyuki KATO, Yushi SEKI, Katsuya IWAZAKI, Hideaki KOMADA
  • Patent number: 10744862
    Abstract: An electric vehicle is provided with an electric motor serving as a driving source and is not provided with an internal combustion engine from which power is transmitted to drive wheels driven by power from the electric motor. The electric vehicle includes: a torque converter that is disposed coaxially with an output shaft of the electric motor, and to which the power is transmitted from the electric motor; an automatic transmission disposed on a power transmission path between the electric motor and the drive wheels, and configured to achieve a shift stage at which the power is interrupted; and a mechanical oil pump driven by the power from the electric motor, and disposed on the power transmission path, at a position upstream of the automatic transmission in a direction of power transmission from the electric motor to the drive wheels. The mechanical oil pump is disposed in the electric motor.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: August 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadashi Sekiguchi, Yushi Seki
  • Patent number: 10712741
    Abstract: A vehicle control system is provided to maintain an SOC level of the battery during autonomous operation of the vehicle. The control system is applied to a vehicle that can be operated autonomously by controlling an engine, a motor, a steering system, a brake system etc. autonomously by a controller, and the vehicle is allowed to coast by manipulating a clutch. During autonomous operation of the vehicle, a first coasting mode in which the engine is stopped and the clutch is disengaged is selected if the SOC level is higher than a threshold level, and a second coasting mode in which the engine is activated and the clutch is disengaged is selected if the SOC level is lower than the threshold level.
    Type: Grant
    Filed: October 27, 2017
    Date of Patent: July 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito Endo, Yasuhiro Oshiumi, Kensei Hata, Yasuyuki Kato, Yushi Seki, Katsuya Iwazaki, Hideaki Komada
  • Patent number: 10710470
    Abstract: A coolant passage of a vehicular cooling system includes a battery coolant passage through which a coolant is supplied from a radiator to a battery, a discharge coolant passage through which the coolant is supplied to the radiator, a first bypass passage through which the coolant is supplied from the discharge coolant passage to the battery coolant passage while bypassing the radiator, and a switching valve that switches a pathway of the coolant, between a first pathway through which the coolant is supplied from the discharge coolant passage to the battery coolant passage via the radiator and a second pathway through which the coolant is supplied from the discharge coolant passage to the battery coolant passage via the first bypass passage. An electronic control unit controls the switching valve such that the pathway is switched to the second pathway at the time of increasing a temperature of the battery.
    Type: Grant
    Filed: July 19, 2018
    Date of Patent: July 14, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi Tominaga, Daisuke Tokozakura, Yushi Seki
  • Patent number: 10629077
    Abstract: A first terminal in a first vehicle included in a vehicle exterior information sharing system sends, when it is detected that a second vehicle is going to park around the first vehicle while the first vehicle is parked, vehicle exterior information on an object around the first vehicle, which is acquired by a sensor device installed on the first vehicle, and a second terminal in the second vehicle receives the vehicle exterior information sent by the first terminal and presents the received vehicle exterior information to a driver of the second vehicle.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: April 21, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yushi Seki, Ryoko Hashimoto, Katsuya Terahata, Daiki Yokoyama
  • Patent number: 10576966
    Abstract: A control system for hybrid vehicles to properly select an operating mode during autonomous operation is provided. An operating mode of the hybrid vehicle is selected from a hybrid mode and an electric vehicle mode. A controller that is configured to: determine an existence of a passenger in a vehicle compartment; select the electric vehicle mode in a case that the hybrid vehicle is operated autonomously while carrying the passenger; and select the hybrid mode in a case that the hybrid vehicle is operated autonomously without carrying the passenger.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: March 3, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahito Endo, Yasuhiro Oshiumi, Kensei Hata, Yasuyuki Kato, Yushi Seki, Katsuya Iwazaki, Akira Murakami
  • Publication number: 20200016997
    Abstract: An accommodation vehicle management apparatus is disclosed which is configured to manage an accommodation vehicle including a reclinable seat in which a passenger sits, the reclinable seat being usable as bedding on which the passenger lies, and the accommodation vehicle being movable. The accommodation vehicle management apparatus includes a first hardware processor configured to restrict a reclining angle of the reclinable seat to less than a predetermined angle set as a reclining angle at the time of the reclinable seat being used as the bedding, at least while the accommodation vehicle is moving.
    Type: Application
    Filed: May 31, 2019
    Publication date: January 16, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Shoya SATO, Katsuya TERAHATA, Yushi SEKI
  • Patent number: 10514267
    Abstract: A vehicle operation management apparatus includes an operation management controller receiving information including embarking and disembarking position information; selecting an overnight stay parking lot; creating the operation plan including a plan of using at least one of electric power and fuel in accordance with a facility of the overnight stay parking lot; selecting the overnight vehicle; calculating a price corresponding to the operation plan; and transmitting information of the selected overnight vehicle and the determined price to the user terminal. Further, the overnight vehicle includes a rechargeable battery, and in a case where there is no facility capable of charging the battery and no: facility capable of performing fuel supply to the overnight vehicle in the overnight stay parking lot selected in the operation plan, travel, control in the operation plan is set to travel control of suppressing consumption of electric power from the battery in the overnight vehicle.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 24, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsuya Terahata, Naoya Ishizaki, Yushi Seki