Patents by Inventor Yoshio Hasegawa

Yoshio Hasegawa 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).

  • Publication number: 20240123794
    Abstract: An electronic control device of a vehicle including an engine, a motor rotationally driven by the engine, and an air conditioner includes: (a) limiting a power consumption of a motor compressor that drives the air conditioner to be less than a predetermined amount when a state-of-charge value SOC of a main battery that is charged by electric power generated by the motor is less than a determination value SOC in a case where the engine is running in an engine using the engine as a power source and the vehicle is in a predetermined high-altitude environment; (b) the operation of the air conditioner is stopped when the state-of-charge value SOC is less than a determination value SOC that is lower than a determination value.
    Type: Application
    Filed: August 7, 2023
    Publication date: April 18, 2024
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Naoki HAYASHIMA, Yoshiaki TSURUTA, Yoshio HASEGAWA
  • Patent number: 11926312
    Abstract: In a case where a predetermined switching operation to a state in which a traveling position is selected from a state in which another shift position of a mechanical transmission device is selected is performed by a driver, a quick engagement command to quickly engage a predetermined engagement device is performed in a state in which output of a predetermined torque is stopped, and then a rapid garage control of increasing a rotation speed of an electric motor at a rotation speed equal to or higher than a predetermined rotation speed is executed. The rapid garage control is executed in a case where a predetermined start condition is established.
    Type: Grant
    Filed: February 17, 2022
    Date of Patent: March 12, 2024
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Hasegawa, Tomohiro Chimbe, Shogo Kawai
  • Patent number: 11897315
    Abstract: A thermal management system includes a circulation channel that connects a motor cooler, outside air heat exchanger, and a heater, a switching valve, and a controller. In a heating mode of operating the heater, the controller sets the switching valve in the first valve position when the motor temperature is lower than a motor temperature threshold value, and sets the switching valve in the second valve position when the motor temperature is higher than the motor temperature threshold value. When a load or a load predicted value of the motor exceeds a load threshold value, the controller holds the switching valve in the second valve position during a predetermined holding time.
    Type: Grant
    Filed: April 26, 2022
    Date of Patent: February 13, 2024
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Satoshi Furukawa, Mitsuyo Omura, Yoshihiro Ishihara
  • Publication number: 20240017584
    Abstract: A thermal management device includes a first thermal circuit, a second thermal circuit, and a control unit. The first thermal circuit includes a first radiator and a battery. The second thermal circuit includes a heater, a temperature sensor, a first path, a second radiator, a second path, a heating appliance, and a flow rate adjusting unit. When a battery heating request and an air heating request are made, the control unit heats a second thermal transfer medium, and divides the flow of the second thermal transfer medium to the first and second paths. When a deficiency value of measured temperature with respect to a target temperature of the second thermal transfer medium is greater than a first threshold value in flow dividing processing, a second flow dividing proportion of the second path is set to be greater than a first flow dividing proportion of the first path.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 18, 2024
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio HASEGAWA, Satoshi Furukawa, Mitsuyo Omura
  • Patent number: 11788618
    Abstract: A hydraulic control system includes a linear solenoid valve, an ON-OFF solenoid valve and a hydraulically-operated frictional engagement device. A first hydraulic pressure is regulated by the linear solenoid valve within a predetermined pressure-regulation control range, and is supplied to the frictional engagement device. In a state in which the frictional engagement device is placed in a predetermined engaged state based on the first hydraulic pressure, a second hydraulic pressure, which is higher than the pressure-regulation control range, is supplied from the ON-OFF solenoid valve to the frictional engagement device, such that the frictional engagement device is placed in a fully engaged state with a high engaging torque based on the second hydraulic pressure.
    Type: Grant
    Filed: February 22, 2023
    Date of Patent: October 17, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATION
    Inventors: Guodong Tan, Masayasu Mizobuchi, Masayuki Baba, Yu Nagasato, Yoshio Hasegawa, Kensuke Wada, Sari Uchiyama
  • Patent number: 11745561
    Abstract: A heat management device may include: a heat circuit comprising a heat exchanger passage, a radiator passage communicating with the heat exchanger passage, and a battery passage communicating with the heat exchanger passage by bypassing the radiator passage; a heat exchanger cooling heat medium by heat exchange; a radiator exchanging heat between outside air and the heat medium in the radiator passage; a control valve changing a channel of the heat medium in the heat circuit; a pump pumping out the heat medium in the heat circuit from the heat exchanger passage to the battery passage and from the heat exchanger passage to the radiator passage; and a controller. The controller may execute: a heating operation for heating the heat medium in the battery passage by a battery; and a circulation operation for cooling the heat medium in the radiator passage by the radiator.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: September 5, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Hiroki Tashiro, Makoto Ikegami
  • Publication number: 20230271601
    Abstract: The control device of the vehicle performs slip control for engaging the connection and disconnection clutch as an instruction hydraulic pressure for engaging the connection and disconnection clutch by the hydraulic control mechanism after the internal combustion engine is started by the starter, as an instruction hydraulic pressure for maintaining the speed of the internal combustion engine at a higher speed than a lower limit speed for avoiding the stop of the internal combustion engine. Further, the control device of the vehicle performs engagement completion control of raising an instruction hydraulic pressure for engaging the connection and disconnection clutch from an instruction hydraulic pressure in the slip control to an instruction hydraulic pressure for completing engagement of the connection and disconnection clutch when a difference between the speed of the internal combustion engine and the speed of the electric motor becomes smaller than a preset threshold value.
    Type: Application
    Filed: December 6, 2022
    Publication date: August 31, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Guodong TAN, Takao OKI, Yoshio HASEGAWA, Masashi IKEMURA
  • Publication number: 20230265919
    Abstract: A hydraulic control system includes a linear solenoid valve, an ON-OFF solenoid valve and a hydraulically-operated frictional engagement device. A first hydraulic pressure is regulated by the linear solenoid valve within a predetermined pressure-regulation control range, and is supplied to the frictional engagement device. In a state in which the frictional engagement device is placed in a predetermined engaged state based on the first hydraulic pressure, a second hydraulic pressure, which is higher than the pressure-regulation control range, is supplied from the ON-OFF solenoid valve to the frictional engagement device, such that the frictional engagement device is placed in a fully engaged state with a high engaging torque based on the second hydraulic pressure.
    Type: Application
    Filed: February 22, 2023
    Publication date: August 24, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN CORPORATION
    Inventors: Guodong Tan, Masayasu Mizobuchi, Masayuki Baba, Yu Nagasato, Yoshio Hasegawa, Kensuke Wada, Sari Uchiyama
  • Publication number: 20230226864
    Abstract: A control apparatus for an electrically-operated vehicle that includes an electric motor serving as one of at least one drive power source. The control apparatus includes a vibration-suppression control portion configured to execute a vibration suppression control for causing the electric motor to output a vibration suppression torque by which vibration of the electrically-operated vehicle is to be suppressed. The vibration-suppression control portion is configured to determine whether the electrically-operated vehicle is in a towing state in which the electrically-operated vehicle runs while towing a towed vehicle, or not, and is configured to make a vibration suppression capacity of the vibration suppression control higher when determining that the electrically-operated vehicle is in the towing state, than when determining that the electrically-operated vehicle is not in the towing state.
    Type: Application
    Filed: December 22, 2022
    Publication date: July 20, 2023
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji MASUNAGA, Shingo ETO, Yoshio HASEGAWA, Shingo OKAYA
  • Patent number: 11648822
    Abstract: A heat management device may include: a first heat circuit in which first heat medium circulates; a second heat circuit in which second heat medium circulates; a first radiator disposed in the first heat circuit; a second radiator disposed in the second heat circuit; and vehicle equipment exchanging heat with the first heat medium. The first and the second radiator may be disposed such that the first heat medium and the second heat medium are able to exchange heat with each other, the first heat medium may be heated by heat exchange between the first and the second heat medium in a case where a temperature of the second heat medium flowing into the second radiator is higher than a temperature of the first heat medium flowing into the first radiator, and the first heat medium heats the vehicle equipment by exchanging heat with the vehicle equipment.
    Type: Grant
    Filed: March 23, 2021
    Date of Patent: May 16, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Hiroki Tashiro, Makoto Ikegami
  • Patent number: 11649746
    Abstract: A heat management system disclosed herein is used for an electric vehicle. The heat management system may include an oil cooler, an oil pump, a converter cooler, a first heat exchanger, a second heat exchanger, a first channel, a second channel, a channel valve, a bypass channel, and a controller. The channel valve may be configured to select a first valve position and a second valve position. The bypass channel may be configured to allow the first heat medium to bypass the first heat exchanger and circulate between the oil cooler and the converter cooler when the second valve position is selected. The controller may be configured to control the channel valve such that the channel valve selects the first valve position and activate the oil pump in response to the temperature of the first heat medium in the first channel becoming higher than a predetermined upper limit temperature.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: May 16, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Hiroo Ohashi, Satoshi Furukawa, Yoshihiro Ishihara
  • Publication number: 20230130590
    Abstract: A vehicle includes a battery for traveling; an air conditioner that includes a defroster mode and that is configured to air-condition a vehicle cabin using a refrigeration cycle; a battery cooler configured to cool the battery with a coolant that is cooled by heat exchange with a refrigerant flowing through the air conditioner; and a control unit configured to control the air conditioner and the battery cooler. In a case where a temperature of the battery is higher than a reference temperature, the control unit operates the battery cooler and controls the air conditioner such that the air conditioner operates in the defroster mode when the vehicle is moving, and the control unit operates the battery cooler and stops the air conditioner when the vehicle is stopped.
    Type: Application
    Filed: September 1, 2022
    Publication date: April 27, 2023
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Masatoshi HIYOSHI, Yoshio HASEGAWA, Haruka TSURUTA, Makoto IKEGAMI, Kazuya FUKE
  • Patent number: 11554635
    Abstract: A heat circuit may include a controller configured to execute a first process and then a defrosting operation. The first process may be a process to execute a first air-heating operation and a heat storage operation simultaneously. The second process may be a process to execute a defrosting operation. The controller may be configured, in the first air-heating operation, to cause the radiator to heat a radiator passage and cause the air-heating apparatus to heat air using heat of a air-heating passage while circulating the heat medium in the radiator passage and the air-heating passage. The controller may be configured, in the heat storage operation, to circulate the heat medium in an electrical apparatus passage and a bypass passage. The controller may be configured, in the defrosting operation, to circulate the heat medium in the electrical apparatus passage and the radiator passage.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: January 17, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Kohji Kinoshita, Shoma Hanano, Yoshio Hasegawa, Manabu Orihashi, Kenichi Kubota, Hideyuki Kawai, Makoto Ikegami, Yuuki Kimura
  • Patent number: 11541726
    Abstract: The disclosure herein provides a heat management system for a vehicle, comprising: a first heat circuit in which first heat medium flows; a second heat circuit in which second heat medium flows; and a main heat exchanger configured to transfer heat from the second heat medium to the first heat medium. The first heat circuit comprises: a compressor; a cabin heater; a first air heat exchanger; an evaporator; a first bypass channel configured to allow the first heat medium to bypass the main heat exchanger; and a first switching valve by which one of the main heat exchanger and the evaporator is selected as a flow destination of the first heat medium flowing out from the first air heat exchanger. A single heat circuit (the first heat circuit) can achieve both heating and cooling of the air in the cabin.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: January 3, 2023
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Manabu Orihashi, Yoshio Hasegawa, Masaki Suzuki
  • Publication number: 20220396123
    Abstract: A thermal management system includes a first cooler that cools a first heat source, a first circulation path that connects the first cooler and a first pump, a second cooler that cools a second heat source, a second circulation path that connects the second cooler and a second pump, a changeover valve, and a controller. The changeover valve is switchable between first and second valve positions. The first and second circulation paths are separated from each other when the changeover valve is in the first valve position. The controller causes both the first and second pumps to operate when the temperature difference between refrigerants in the first and second circulation paths is more than a predetermined temperature difference threshold when the changeover valve is set to the first valve position and one of the first and second pumps is operating and the other is not operating.
    Type: Application
    Filed: May 9, 2022
    Publication date: December 15, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Masatoshi Hiyoshi, Haruka Tsuruta
  • Publication number: 20220371404
    Abstract: A thermal management system includes a circulation channel that connects a motor cooler, outside air heat exchanger, and a heater, a switching valve, and a controller. In a heating mode of operating the heater, the controller sets the switching valve in the first valve position when the motor temperature is lower than a motor temperature threshold value, and sets the switching valve in the second valve position when the motor temperature is higher than the motor temperature threshold value. When a load or a load predicted value of the motor exceeds a load threshold value, the controller holds the switching valve in the second valve position during a predetermined holding time.
    Type: Application
    Filed: April 26, 2022
    Publication date: November 24, 2022
    Applicants: Toyota Jidosha Kabushiki Kaisha, Subaru Corporation
    Inventors: Yoshio Hasegawa, Satoshi Furukawa, Mitsuyo Omura, Yoshihiro Ishihara
  • Publication number: 20220371402
    Abstract: In a thermal management system for a battery electric vehicle, a controller is configured to, in a heating mode, control a switching valve to select a first valve position when a power supply temperature is higher than a predetermined power supply temperature threshold, and control the switching valve to select a second valve position when the power supply temperature is equal to or lower than the power supply temperature threshold. The controller is configured to switch the switching valve from the first valve position to the second valve position regardless of the power supply temperature, when a temperature of a heat medium that has passed through a power supply cooler is lower than an outside air temperature by a predetermined margin temperature difference or more while the switching valve is in the first valve position.
    Type: Application
    Filed: April 6, 2022
    Publication date: November 24, 2022
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio Hasegawa, Satoshi Furukawa, Mitsuyo Omura
  • Publication number: 20220281437
    Abstract: In a case where a predetermined switching operation to a state in which a traveling position is selected from a state in which another shift position of a mechanical transmission device is selected is performed by a driver, a quick engagement command to quickly engage a predetermined engagement device is performed in a state in which output of a predetermined torque is stopped, and then a rapid garage control of increasing a rotation speed of an electric motor at a rotation speed equal to or higher than a predetermined rotation speed is executed. The rapid garage control is executed in a case where a predetermined start condition is established.
    Type: Application
    Filed: February 17, 2022
    Publication date: September 8, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Tomohiro CHIMBE, Shogo KAWAI
  • Patent number: 11407281
    Abstract: A heat management device may include: a first heat circuit; a second heat circuit; a heat exchanger configured to cool the first heat circuit and heat the second heat circuit; air-heating apparatus configured to heat air using the second heat circuit; a battery and electrical apparatus configured to be cooled by the first heat circuit; and a radiator configured to exchange heat between the first heat circuit and outside air. A controller may be configured, in the second process, to cause the heat exchanger to cool the heat exchanger passage while a heat medium circulates in the heat exchanger passage and the battery passage and bypasses the radiator passage. The controller may be configured, in the third process, to cause the radiator to cool the heat medium while the heat medium circulates in the radiator passage and the electrical apparatus passage and bypasses the heat exchanger passage.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: August 9, 2022
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Kohji Kinoshita, Shoma Hanano, Yoshio Hasegawa, Manabu Orihashi, Hideyuki Kawai, Kenichi Kubota, Makoto Ikegami, Yuuki Kimura
  • Publication number: 20220227350
    Abstract: A control apparatus for a hybrid electric vehicle includes: an engine control portion for controlling an operation state of an engine; and a driving-mode control portion for controlling the vehicle so as to realize selected at least one of driving modes. The driving modes include a low-gear all-wheel driving mode and a high-gear all-wheel driving mode. In a case in which the low-gear all-wheel driving mode is selected in the high-gear all-wheel driving mode when the engine is in a stopped state with a vehicle power transmission apparatus being in a non-driving position that disables transmission of a drive power, the engine control portion maintains the stopped state of the engine until completion of switching from the high-gear all-wheel driving mode to the low-gear all-wheel driving mode, and starts the engine after the completion of the switching from the high-gear all-wheel driving mode to the low-gear all-wheel driving mode.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 21, 2022
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hironobu ARATAKE, Yoshiaki TSURUTA, Yoshio HASEGAWA, Takahiko TSUTSUMI