Patents by Inventor Masami Kondo

Masami Kondo 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: 11370413
    Abstract: A control system for a hybrid vehicle configured to limit a thermal damage to a starting clutch without generating a shock. The control system is applied to a vehicle in which a prime mover includes an engine, a first motor, and a second motor. In the vehicle, the first motor is connected to the engine, and a first clutch and a second clutch are disposed between the engine and drive wheels. A controller executes a transient slip control to cause the second clutch to slip while bringing the slipping first clutch into complete engagement if a temperature of the first clutch is high. If an engine speed is changed during execution of the transient slip control, the first motor generates a collection torque to suppress the change in the engine speed.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: June 28, 2022
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya Mizuno, Hideo Watanabe, Toshiyuki Tomita, Masami Kondo
  • Publication number: 20210031138
    Abstract: An absorbent liquid which absorbs at least one of CO2 and H2S from a gas, including a secondary linear monoamine; a tertiary linear monoamine or a sterically hindered primary monoamine; and a secondary cyclic diamine, wherein a concentration of each of the secondary linear monoamine, the tertiary linear monoamine or the sterically hindered primary monoamine; and the secondary cyclic diamine is less than 30% by weight.
    Type: Application
    Filed: October 16, 2020
    Publication date: February 4, 2021
    Applicants: Mitsubishi Heavy Industries Engineering, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Masami Kondo, Takashi Kamijo, Tatsuya Tsujiuchi
  • Patent number: 10857502
    Abstract: An absorbent liquid which absorbs at least one of CO2 and H2S from a gas, including a secondary linear monoamine; a tertiary linear monoamine or a sterically hindered primary monoamine; and a secondary cyclic diamine, wherein a concentration of each of the secondary linear monoamine, the tertiary linear monoamine or the sterically hindered primary monoamine; and the secondary cyclic diamine is less than 30% by weight.
    Type: Grant
    Filed: September 23, 2016
    Date of Patent: December 8, 2020
    Assignees: Mitsubishi Heavy Industries Engineering, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Masami Kondo, Takashi Kamijo, Tatsuya Tsujiuchi
  • Publication number: 20200207330
    Abstract: A control system for a hybrid vehicle configured to limit a thermal damage to a starting clutch without generating a shock. The control system is applied to a vehicle in which a prime mover includes an engine, a first motor, and a second motor. In the vehicle, the first motor is connected to the engine, and a first clutch and a second clutch are disposed between the engine and drive wheels. A controller executes a transient slip control to cause the second clutch to slip while bringing the slipping first clutch into complete engagement if a temperature of the first clutch is high. If an engine speed is changed during execution of the transient slip control, the first motor generates a collection torque to suppress the change in the engine speed.
    Type: Application
    Filed: December 20, 2019
    Publication date: July 2, 2020
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Junya MIZUNO, Hideo WATANABE, Toshiyuki TOMITA, Masami KONDO
  • Patent number: 10676092
    Abstract: A vehicle control device has an engine, automatic transmission, and torque converter disposed between the engine and the automatic transmission. The torque converter includes a lockup clutch coupling an input member to an output member of the torque converter. The control device has: a slip control portion controlling lockup clutch slip when deceleration running; and a fuel cut control portion performing an engine fuel cut when deceleration running and to terminate the fuel cut when an engine rotation speed is reduced to a predetermined rotation speed or less during the fuel cut, the fuel cut control portion being permitted to perform the fuel cut, based on lockup clutch slip pressure controlled by the slip control portion has reached a slip pressure value at which the engine rotation speed does not decrease due to a shortage of torque capacity of the lockup clutch even when the fuel cut is performed.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: June 9, 2020
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keigo Matsubara, Chikashi Ohta, Masami Kondo
  • Patent number: 10487939
    Abstract: An automatic transmission control device is configured to execute a first shifting between a pre-shifting gear position and an intermediate gear position, and a second shifting between the intermediate gear position and a post-shifting gear position such that each of the first and second shiftings is executed by releasing one of engagement devices and engaging one of the engagement devices, and is configured, upon transition from the first shifting to the second transition, to gradually changing an engagement torque of an engagement-maintained engagement device as one of the engagement devices which is engaged upon completion of the first shifting and is maintained in the engaged state during the second shifting, such that the engagement torque of the engagement-maintained engagement device is changed gradually from a required engagement torque required upon completion of the first shifting, to a required engagement torque which is required in the second shifting.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 26, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Keisuke Ota, Norihiro Tsukamoto, Masami Kondo, Yuji Kajiyama, Daiki Fukuda
  • Patent number: 10408338
    Abstract: A control apparatus for a stepped automatic transmission in which one of a plurality of shift speeds is established by selectively engaging a plurality of frictional engagement elements, the stepped automatic transmission mounted on a vehicle, the control apparatus includes: an electronic control unit configured to perform a control of prohibiting a plurality of shift that is transitioning from an upshift speed change to a downshift speed change, for a predetermined period, when a downshift speed change requirement is requested by an occurrence of an accelerator depression operation during an inertia phase of the upshift speed change in a driven state of a vehicle.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: September 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke Ota, Norihiro Tsukamoto, Masami Kondo
  • Publication number: 20180280867
    Abstract: An absorbent liquid which absorbs at least one of CO2 and H2S from a gas, including a secondary linear monoamine; a tertiary linear monoamine or a sterically hindered primary monoamine; and a secondary cyclic diamine, wherein a concentration of each of the secondary linear monoamine, the tertiary linear monoamine or the sterically hindered primary monoamine; and the secondary cyclic diamine is less than 30% by weight.
    Type: Application
    Filed: September 23, 2016
    Publication date: October 4, 2018
    Applicants: Mitsubishi Heavy Industries Engineering, Ltd., The Kansai Electric Power Co., Inc.
    Inventors: Hiroshi Tanaka, Takuya Hirata, Masami Kondo, Takashi Kamijo, Tatsuya Tsujiuchi
  • Publication number: 20180252313
    Abstract: An automatic transmission control device is configured to execute a first shifting between a pre-shifting gear position and an intermediate gear position, and a second shifting between the intermediate gear position and a post-shifting gear position such that each of the first and second shiftings is executed by releasing one of engagement devices and engaging one of the engagement devices, and is configured, upon transition from the first shifting to the second transition, to gradually changing an engagement torque of an engagement-maintained engagement device as one of the engagement devices which is engaged upon completion of the first shifting and is maintained in the engaged state during the second shifting, such that the engagement torque of the engagement-maintained engagement device is changed gradually from a required engagement torque required upon completion of the first shifting, to a required engagement torque which is required in the second shifting.
    Type: Application
    Filed: March 5, 2018
    Publication date: September 6, 2018
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Keisuke OTA, Norihiro TSUKAMOTO, Masami KONDO, Yuji KAJIYAMA, Daiki FUKUDA
  • Publication number: 20180245684
    Abstract: A control apparatus for a stepped automatic transmission in which one of a plurality of shift speeds is established by selectively engaging a plurality of frictional engagement elements, the stepped automatic transmission mounted on a vehicle, the control apparatus includes: an electronic control unit configured to perform a control of prohibiting a plurality of shift that is transitioning from an upshift speed change to a downshift speed change, for a predetermined period, when a downshift speed change requirement is requested by an occurrence of an accelerator depression operation during an inertia phase of the upshift speed change in a driven state of a vehicle.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keisuke OTA, Norihiro TSUKAMOTO, Masami KONDO
  • Publication number: 20180201269
    Abstract: A vehicle control device has an engine, automatic transmission, and torque converter disposed between the engine and the automatic transmission. The torque converter includes a lockup clutch coupling an input member to an output member of the torque converter. The control device has: a slip control portion controlling lockup clutch slip when deceleration running; and a fuel cut control portion performing an engine fuel cut when deceleration running and to terminate the fuel cut when an engine rotation speed is reduced to a predetermined rotation speed or less during the fuel cut, the fuel cut control portion being permitted to perform the fuel cut, based on lockup clutch slip pressure controlled by the slip control portion has reached a slip pressure value at which the engine rotation speed does not decrease due to a shortage of torque capacity of the lockup clutch even when the fuel cut is performed.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 19, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Keigo MATSUBARA, Chikashi OHTA, Masami KONDO
  • Patent number: 10006522
    Abstract: A control device for an automatic transmission is provided. The automatic transmission is configured to realize a plurality of gear shift stages by combination of a plurality of engaging devices engaged or released among the plurality of engaging devices. The control device includes an electronic control unit. The electronic control unit is configured to select, as the setting pattern realizing an intermediate gear shift stage, the setting pattern with a smaller number of switching of the engagement or release of the engaging device than the number of switching of the setting pattern with the largest number of switching among the plurality of setting patterns when a shift is performed from a first gear shift stage to a second gear shift stage through the intermediate gear shift stage in a case where the electronic control unit determines that the shift is to be performed through the intermediate gear shift stage.
    Type: Grant
    Filed: June 27, 2016
    Date of Patent: June 26, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jonggap Kim, Masami Kondo, Hideo Watanabe
  • Patent number: 9896081
    Abstract: A travel control device includes: an engine; an automatic transmission including a plurality of engagement elements and a rotary element, the automatic transmission being configured to block power transmission between the engine and a drive wheel of a vehicle and set a transmission gear ratio in accordance with an engagement element to be engaged out of the plurality of engagement elements; and a controller configured to perform free-running by blocking power transmission between the engine and the drive wheel while traveling at a predetermined transmission gear ratio and stopping the engine. The controller is configured to increase speed of a rotary element inside the automatic transmission during the free-running, and start the engine at a time speed of the engine becomes higher than a predetermined speed at a time of returning from the free-running.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: February 20, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masami Kondo, Takahiro Yokokawa, Youhei Hareyama
  • Patent number: 9829092
    Abstract: A vehicle control device includes: a change gear ratio changing circuit configured to execute an up-shift of a change gear ratio in an automatic transmission; a change gear ratio determination circuit configured to determine whether or not an up-shift condition is satisfied based on a change gear diagrammatic view; a combustion mode determination circuit configured to determine whether or not a switching condition for switching from a predetermined combustion mode, in which an air-fuel ratio of the engine is an air-fuel ratio on a rich side than a lean air-fuel ratio, to a supercharged lean combustion mode, in which the air-fuel ratio of an engine is made to the lean air-fuel ratio while executing supercharging by a supercharger, is satisfied; and a change regulating circuit configured to regulate the change gear ratio changing circuit to execute the up-shift at the time both conditions are satisfied.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: November 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadayuki Nagai, Masami Kondo
  • Patent number: 9644550
    Abstract: A control apparatus for a vehicle, wherein the vehicle includes an engine having a turbocharger and an automatic transmission. The control apparatus includes at least one electronic control unit configured to: control an air-fuel ratio of the engine and an operating state of the turbocharger based on a parameter indicating a load of the engine; control the turbocharger to execute turbocharging and operate the engine in a turbocharging lean combustion mode when the parameter is within a predetermined range, an air-fuel ratio set in the turbocharging lean combustion mode being a predetermined lean air-fuel ratio; and operate the engine in a predetermined operation mode instead of the turbocharging lean combustion mode in at least a part of the predetermined range when a downshift is performed in the automatic transmission, an air-fuel ratio set in the predetermined operation mode being a richer air-fuel ratio than the predetermined lean air-fuel ratio.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: May 9, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadayuki Nagai, Masami Kondo
  • Patent number: 9605609
    Abstract: A control apparatus for a vehicle, wherein the vehicle includes an engine having a turbocharger and an automatic transmission. The control apparatus includes at least one electronic control unit configured to: control an air-fuel ratio of the engine and an operating state of the turbocharger based on a parameter indicating a load of the engine; control the turbocharger to execute turbocharging and operate the engine in a turbocharging lean combustion mode when the parameter is within a predetermined range, an air-fuel ratio set in the turbocharging lean combustion mode being a predetermined lean air-fuel ratio; and operate the engine in a predetermined operation mode instead of the turbocharging lean combustion mode in at least a part of the predetermined range when a downshift is performed in the automatic transmission, an air-fuel ratio set in the predetermined operation mode being a richer air-fuel ratio than the predetermined lean air-fuel ratio.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: March 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Tadayuki Nagai, Masami Kondo
  • Publication number: 20170002923
    Abstract: A control device for an automatic transmission is provided. The automatic transmission is configured to realize a plurality of gear shift stages by combination of a plurality of engaging devices engaged or released among the plurality of engaging devices. The control device includes an electronic control unit. The electronic control unit is configured to select, as the setting pattern realizing an intermediate gear shift stage, the setting pattern with a smaller number of switching of the engagement or release of the engaging device than the number of switching of the setting pattern with the largest number of switching among the plurality of setting patterns when a shift is performed from a first gear shift stage to a second gear shift stage through the intermediate gear shift stage in a case where the electronic control unit determines that the shift is to be performed through the intermediate gear shift stage.
    Type: Application
    Filed: June 27, 2016
    Publication date: January 5, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Jonggap KIM, Masami KONDO, Hideo WATANABE
  • Patent number: 9500278
    Abstract: With a hydraulic control operation amount generation apparatus for an automatic transmission and a control apparatus for an automatic transmission, a control operation amount at which any desired target packing control execution time can be realized is generated on a hydraulic model by determining formulae of the 2n?2 constraint conditions corresponding to the n hydraulic control phases relating to the packing control of the engagement devices.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: November 22, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takayuki Ando, Masami Kondo, Seiji Masunaga, Shogo Tsuge
  • Patent number: 9482341
    Abstract: A control apparatus for automatic-transmission provided with input-clutch through which drive force generated by engine is input to automatic-transmission, released-side frictional coupling device being placed in released state to perform shifting action of automatic-transmission, and engaged-side frictional coupling device being placed in engaged state to perform shifting action, control apparatus including: first shifting mode control means including slipping means for placing input-clutch in released state, engaging means for placing input-clutch in engaged state, and releasing/engaging switching control means for controlling shifting action of automatic-transmission being performed in first shifting mode wherein released-side frictional coupling device is brought into released state, and engaged-side frictional coupling device is brought into engaged state, while input-clutch is placed in released or slipping state under control of slipping means, and input-clutch is then brought into engaged state under
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 1, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Masami Kondo, Akio Sugawara, Shuntaro Shinohara
  • Patent number: 9434390
    Abstract: A vehicle control device includes a control unit configured to execute free-run traveling in which an engine is stopped and a clutch that transmits power of the engine to a drive wheel is disengaged, at a time acceleration is not requested during traveling. The control unit is configured to prohibit upshifting of a continuously variable transmission at least during execution of the free-run traveling, drive the engine from the free-run traveling state in response to an acceleration request, and upshift the continuously variable transmission at a time of returning to a normal traveling state in which the clutch is engaged.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: September 6, 2016
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Takahiro Yokokawa, Masami Kondo, Youhei Hareyama