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: 20210309075
    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 beating 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: Application
    Filed: March 23, 2021
    Publication date: October 7, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio HASEGAWA, Hiroki TASHIRO, Makoto IKEGAMI
  • Publication number: 20210301691
    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: Application
    Filed: March 10, 2021
    Publication date: September 30, 2021
    Inventors: Yoshio HASEGAWA, Hiroo OHASHI, Satoshi FURUKAWA, Yoshihiro ISHIHARA
  • Publication number: 20210300154
    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: Application
    Filed: March 23, 2021
    Publication date: September 30, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Yoshio HASEGAWA, Hiroki TASHIRO, Makoto IKEGAMI
  • Publication number: 20210291625
    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: Application
    Filed: February 23, 2021
    Publication date: September 23, 2021
    Applicants: 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: 20210291628
    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: Application
    Filed: February 23, 2021
    Publication date: September 23, 2021
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, SUBARU CORPORATION
    Inventors: Kohji KINOSHITA, Shoma HANANO, Yoshio HASEGAWA, Manabu ORIHASHI, Kenichi KUBOTA, Hideyuki KAWAI, Makoto IKEGAMI, Yuuki KIMURA
  • Publication number: 20210276537
    Abstract: An ECU executes a first control when an automatic transmission has a shift range changed from an N range to a D range. In the first control, the ECU initially rotates an EOP and also sets a motor generator's rotational speed to a prescribed rotational speed. The ECU rapidly engages a Drive clutch while maintaining the motor generator's rotational speed at the prescribed rotational speed. The ECU then increases the motor generator's rotational speed to a target rotational speed set for the D range.
    Type: Application
    Filed: March 3, 2021
    Publication date: September 9, 2021
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Takeshi AKIRA
  • Publication number: 20200290431
    Abstract: A vehicle-mounted temperature controller includes a first heat circuit and a refrigeration circuit. The first heat circuit has a battery heat exchange part exchanging heat with a battery and a first heat exchange part, and configured so that a first heat medium circulates therethrough. The refrigeration circuit has a compression part compressing a refrigerant to raise its temperature, a second heat exchange part radiating heat from the refrigerant, an expansion part making the refrigerant expand, and the first heat exchange part making the refrigerant absorb heat from the first heat medium to make the refrigerant evaporate, and is configured to realize a refrigeration cycle by the refrigerant circulating therethrough. The first heat circuit includes a bypass flow path bypassing the battery heat exchange part and an adjusting device adjusting a flow rate of the first heat medium flowing through the bypass flow path.
    Type: Application
    Filed: March 11, 2020
    Publication date: September 17, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hidefumi AIKAWA, Manabu ORIHASHI, Yoshio HASEGAWA, Takashi OGAWA
  • Publication number: 20200290426
    Abstract: A vehicle-mounted temperature controller includes a low temperature circuit and a refrigeration circuit. The low temperature circuit has a heat generating equipment heat exchanger exchanging heat with heat generating equipment, a radiator, a first heat exchanger, and a three-way valve. The refrigeration circuit has a second heat exchanger discharging heat from the refrigerant to a high temperature circuit to make the refrigerant condense, and the first heat exchanger making the refrigerant absorb heat from the cooling water to make the refrigerant evaporate. The low temperature circuit includes a first partial circuit through which the cooling water flows through the radiator and the first heat exchanger, and a second partial circuit through which the cooling water flows through the heat generating equipment heat exchanger without passing through the radiator and the first heat exchanger. The cooling water circulates simultaneously and separately at these first partial circuit and second partial circuit.
    Type: Application
    Filed: March 12, 2020
    Publication date: September 17, 2020
    Inventors: Hidefumi AIKAWA, Manabu ORIHASHI, Yoshio HASEGAWA, Takashi OGAWA, Yuji MIYOSHI, Kunihiko HAYASHI
  • Patent number: 10563737
    Abstract: An automatic transmission, which is configured such that there is no difference of rotation between a third sun gear and an intermediate shaft in a state where a second clutch is brought into a release state and a seventh speed stage is established, is provided. In the automatic transmission, at the time of a gear shift from a tenth speed stage where second and third clutches and a first brake are brought into an engagement state to a seventh speed stage where first, third, and fourth clutches are brought into an engagement state, the fourth clutch is engaged and the first brake is released to establish the seventh speed stage with the second clutch in the engagement state. Then, the first clutch is engaged and the second clutch is released to make transition to the seventh speed stage with the second clutch in the release state.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: February 18, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio Hasegawa, Masakazu Owatari, Norihiro Tsukamoto
  • Patent number: 10557400
    Abstract: The cooling apparatus of the engine sets the first shut-off valve to the closed position, sets the second shut-off valve to the open position, and performs the opposite flow connection operation to supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and to the heat exchanger from the cylinder head water block when the engine temperature is lower than the completely-warmed temperature, and the cooling water is requested to be supplied to the heat exchanger.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: February 11, 2020
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshio Hasegawa, Tomohiro Shinagawa, Yuji Miyoshi
  • Patent number: 10428720
    Abstract: The cooling apparatus of the engine according to the invention supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage when the engine temperature is between first and second temperatures, and a supply of the cooling water to the heat exchanger is not requested. The first and second temperatures are lower than the engine completely-warmed temperature. The apparatus supplies the cooling water discharged from the cylinder block and head water passages, to the water passages through the heat exchanger when the engine temperature is between the second temperature and the engine completely-warmed temperature, and the supply of the cooling water to the heat exchanger is not requested.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 1, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshio Hasegawa, Yuji Miyoshi, Tomohiro Shinagawa, Yoshiharu Hirata
  • Patent number: 10415455
    Abstract: A cooling apparatus of an engine of the invention has a circulation passage for supplying cooling water to head and block passages through a heat exchanger. The apparatus circulates the cooling water through the circulation passage when a second condition is satisfied and then, a first condition is satisfied. The first condition includes a water supply condition that a supply of the cooling water to the exchanger is requested. The second condition includes the water supply condition and a condition that a cooling water temperature is lower than an engine completely-warmed water temperature.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: September 17, 2019
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshio Hasegawa, Yuji Miyoshi, Tomohiro Shinagawa, Yoshiharu Hirata, Ryo Michikawauchi
  • Patent number: 10385759
    Abstract: A cooling system includes: a first coolant passage; a second coolant passage; a pump; a radiator; a third coolant passage; a connection switching mechanism that switches between a forward flow connection state and a reverse flow connection state; a fourth coolant passage; a fifth coolant passage; and a shutoff valve configured to open/shut off the fifth coolant passage. The radiator is disposed at a location at which coolant flowing from a second end of the first coolant passage into a fourth end of the second coolant passage is not cooled in the reverse flow connection state, and coolant flowing out from the second end of the first coolant passage and the fourth end of the second coolant passage is cooled in the forward flow connection state.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: August 20, 2019
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Seiki Kabushiki Kaisha
    Inventors: Yoshio Hasegawa, Tomohiro Shinagawa, Kenichi Kubota, Ryo Michikawauchi, Yuji Miyoshi, Yoshiharu Hirata, Naoto Yumisashi
  • Publication number: 20190170049
    Abstract: The cooling apparatus of the engine according to the invention supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage when the engine temperature is between first and second temperatures, and a supply of the cooling water to the heat exchanger is not requested. The first and second temperatures are lower than the engine completely-warmed temperature. The apparatus supplies the cooling water discharged from the cylinder block and head water passages, to the water passages through the heat exchanger when the engine temperature is between the second temperature and the engine completely-warmed temperature, and the supply of the cooling water to the heat exchanger is not requested.
    Type: Application
    Filed: March 26, 2018
    Publication date: June 6, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Yuji MIYOSHI, Tomohiro SHINAGAWA, Yoshiharu HIRATA
  • Patent number: 10254051
    Abstract: There is provided a control system of a chemical heat accumulator which enables to facilitate small-sizing of the chemical heat accumulator by carrying out heat release and heat accumulation according to a degree of priority by appropriately selecting a location of carrying out the heat release and heat accumulation on priority basis. A chemical heat accumulator includes a valve mechanism which makes a plurality of reactors communicate separately with a reservoir, and cuts off the plurality of reactors from the reservoir.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: April 9, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takashi Amano, Hidefumi Aikawa, Yoshio Hasegawa, Jumpei Kashiwakura
  • Publication number: 20180283259
    Abstract: A cooling apparatus of an engine of the invention has a circulation passage for supplying cooling water to head and block passages through a heat exchanger. The apparatus circulates the cooling water through the circulation passage when a second condition is satisfied and then, a first condition is satisfied. The first condition includes a water supply condition that a supply of the cooling water to the exchanger is requested. The second condition includes the water supply condition and a condition that a cooling water temperature is lower than an engine completely-warmed water temperature.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Yuji Miyoshi, Tomohiro Shinagawa, Yoshiharu Hirata, Ryo Michikawauchi
  • Publication number: 20180283260
    Abstract: The cooling apparatus of the engine sets the first shut-off valve to the closed position, sets the second shut-off valve to the open position, and performs the opposite flow connection operation to supplies the cooling water directly to the cylinder block water passage from the cylinder head water passage without flowing the cooling water through the radiator and to the heat exchanger from the cylinder head water block when the engine temperature is lower than the completely-warmed temperature, and the cooling water is requested to be supplied to the heat exchanger.
    Type: Application
    Filed: March 26, 2018
    Publication date: October 4, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Tomohiro SHINAGAWA, Yuji MIYOSHI
  • Publication number: 20180266547
    Abstract: An automatic transmission controller is provided, which is capable of reducing occurrence of a shift shock while improving responsiveness of a driving force. An ECU is configured to calculate a target shift time based on an input torque that is input to the automatic transmission when a gear stage is shifted from a current gear stage to a target gear stage spaced two or more stages apart from the current gear stage. The ECU is also configured to: shift the gear stage to an intermediate gear stage between the current gear stage and the target gear stage when the target shift time is not less than a predetermined value; and to shift the gear stage directly to the target gear stage when the target shift time is less than the predetermined value.
    Type: Application
    Filed: August 22, 2016
    Publication date: September 20, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke OTA, Yoshio HASEGAWA
  • Publication number: 20180230892
    Abstract: A cooling system includes: a first coolant passage; a second coolant passage; a pump; a radiator; a third coolant passage; a connection switching mechanism that switches between a forward flow connection state and a reverse flow connection state; a fourth coolant passage; a fifth coolant passage; and a shutoff valve configured to open/shut off the fifth coolant passage. The radiator is disposed at a location at which coolant flowing from a second end of the first coolant passage into a fourth end of the second coolant passage is not cooled in the reverse flow connection state, and coolant flowing out from the second end of the first coolant passage and the fourth end of the second coolant passage is cooled in the forward flow connection state.
    Type: Application
    Filed: February 13, 2018
    Publication date: August 16, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Yoshio HASEGAWA, Tomohiro SHINAGAWA, Kenichi KUBOTA, Ryo MICHIKAWAUCHI, Yuji MIYOSHI, Yoshiharu HIRATA, Naoto YUMISASHI
  • Patent number: 9945453
    Abstract: An automatic transmission 20 includes: a Simpson type complex planetary gear train 25 including single pinion type first and second planetary gears 21 and 22 and single pinion type third and fourth planetary gears 23 and 24; first through fourth clutches C1 to C4; and first and second brakes B1 and B2. A first carrier 21c of the first planetary gear 21 is coupled to an input shaft 20i. A first ring gear 21r of the first planetary gear 21 is selectively connected to an output shaft 20o by the first clutch C1.
    Type: Grant
    Filed: March 27, 2014
    Date of Patent: April 17, 2018
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayoshi Kato, Takashi Morimoto, Toshihiko Aoki, Hiroshi Kato, Satoru Kasuya, Tomochika Inagaki, Minoru Todo, Shinji Oita, Masaru Morise, Terufumi Miyazaki, Yoshio Hasegawa