Patents by Inventor Yukihiko Ideshio

Yukihiko Ideshio 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: 10539071
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Grant
    Filed: January 11, 2019
    Date of Patent: January 21, 2020
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
  • Publication number: 20190359216
    Abstract: A control apparatus for a hybrid vehicle in which a friction clutch and a one-way clutch are disposed in parallel with each other between an engine and an electric motor. The transmission is disposed between the electric motor and drive wheels. The friction clutch connects and disconnects between the engine and the electric motor. The one-way clutch transmits a drive force in a direction from the engine toward the electric motor. The vehicle runs in (i) an electric-motor running mode with operation of the electric motor or (ii) a hybrid running mode with operation of the engine. The control apparatus is configured, upon execution of a shift-up action of the transmission with the hybrid running mode being selected and with the friction clutch being in a non-engaged state, to execute a shift-up action control by which the shift-up action starts to be executed after the friction clutch has been engaged.
    Type: Application
    Filed: May 28, 2019
    Publication date: November 28, 2019
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Kazuhiko YAMADA, Yukihiko IDESHIO, Hiroki MORITA
  • Publication number: 20190145312
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Application
    Filed: January 11, 2019
    Publication date: May 16, 2019
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio IWASE, Daiki SUYAMA, Naoya JINNAI, Kensuke WADA, Yuji INOUE, Yukihiko IDESHIO
  • Patent number: 10267218
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Grant
    Filed: September 15, 2017
    Date of Patent: April 23, 2019
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
  • Patent number: 10232845
    Abstract: In a vehicle that includes an engine including a starter, an automatic transmission unit having an input shaft coupled to an output shaft of the engine via a first clutch, and a motor generator (hereinafter, referred to as “MG”) coupled to the input shaft of the automatic transmission unit via a second clutch, an electronic control unit starts up the engine with the use of the starter in a state where the MG is disconnected from the engine by releasing at least one of the first clutch or the second clutch when an IG-on operation has been made in an IG-off state (a state where the vehicle is stopped in a P range) and a power control unit that supplies electric power to the MG has a failure.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: March 19, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Takahiko Tsutsumi
  • Patent number: 10183567
    Abstract: A vehicle drive device, wherein the fluid coupling accommodating space is formed between the rotating electrical machine accommodating space and the speed change mechanism accommodating space in an axial direction of the speed change mechanism and is configured such that no oil is supplied to a region around the fluid coupling, the discharge oil passage has an introducing opening that opens to the second oil reservoir, and a lowest end of the introducing opening is located below a lowest end of the rotating electrical machine.
    Type: Grant
    Filed: March 30, 2015
    Date of Patent: January 22, 2019
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daiki Suyama, Katsuhiko Hattori, Yukihiko Ideshio
  • Patent number: 9950605
    Abstract: A hybrid driving device that includes a first input that is linked to an internal combustion engine; a rotary electric machine; a transmission that changes a speed of rotation of a second input, and transmits the rotation to an output; a rotor support which rotates integrally with a rotor of the rotary electric machine; a first engagement device; a second engagement device; and a case.
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: April 24, 2018
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daiki Suyama, Katsuhiko Hattori, Hikaru Sugiura, Tatsuya Okishima, Yukihiko Ideshio
  • Patent number: 9902389
    Abstract: A vehicle drive control device performs acceleration/deceleration running by alternately repeating acceleration running and deceleration running, wherein it compares between an efficiency of the motor at a first operation point determined by a rotation speed and a torque of a motor and an efficiency of the motor at a second operation point for outputting a higher torque than the first operation point, and if a difference between the efficiencies is greater than a determination value, the acceleration running at the second operation point and the deceleration running being repeated, the second operation point being set a maximum efficiency line of the motor with the rotation speed and the torque of the motor as parameters to perform the acceleration running, and if acceleration during the acceleration running becomes larger than an acceleration limit value, a rotating machine acting at least as an electric generator generating electricity to charge a battery.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: February 27, 2018
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Terufumi Miyazaki, Yukihiko Ideshio, Toshihiko Kamiya, Shingo Eto, Hironori Asaoka, Yasuyuki Kato, Seigo Kanou, Makoto Iwanaka
  • Patent number: 9878605
    Abstract: A power transmission system (10) for a hybrid vehicle, the power transmission system (10) includes a transmission (TM, 20), a clutch (18), a motor (MG), an engine (14), a first oil pump (44), a second oil pump (68), a first hydraulic circuit in which the first oil pump (44) is provided, and a second hydraulic circuit in which the second oil pump (68) is provided. The motor (MG) is connected to a driving wheel (26) through the transmission (TM, 20). The engine (14) is connected to the motor (MG) through the clutch (28). The first oil pump (44) supplies oil to the transmission (20). The second oil pump (68) supplies oil to the motor (MG) and the clutch (28). The second hydraulic circuit is independent from the first hydraulic circuit. Selected drawing.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: January 30, 2018
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Yuji Inoue, Yukihiko Ideshio, Yousuke Michikoshi, Daiki Suyama, Naoya Jinnai, Kensuke Wada
  • Publication number: 20180003107
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Application
    Filed: September 15, 2017
    Publication date: January 4, 2018
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio IWASE, Daiki SUYAMA, Naoya JINNAI, Kensuke WADA, Yuji INOUE, Yukihiko IDESHIO
  • Patent number: 9797305
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: October 24, 2017
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
  • Patent number: 9772019
    Abstract: A fluid transmission device for a vehicle includes a cover and a positioning member. The cover is configured to be driven rotatably about the axis of the fluid transmission device integrally with a drive plate. The drive plate includes a positioning hole that positions the drive plate and the cover. The positioning member is a columnar member. The positioning member is provided on the surface side of the cover, which is opposed to the drive plate, at a radially outer position of the cover. The positioning member protrudes to a drive-plate side in a state where the positioning member is arranged in the positioning hole. The positioning member protrudes from the drive plate obliquely with respect to the axis direction of the fluid transmission device. A radially outermost position of the positioning member is located on the radially inner side relative to a radially outermost position of the cover.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: September 26, 2017
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD.
    Inventors: Yukihiko Ideshio, Yuji Inoue, Minoru Abe
  • Patent number: 9718464
    Abstract: Even when a motor fails in an EV travel mode in which a clutch is disengaged, an amount of hydraulic oil that is supplied to the clutch can be secured by reducing a transmission leaked amount. Accordingly, the clutch can be engaged, and an oil pump can be driven by power of an engine. Thus, an evacuation travel by the engine is allowed when the motor fails in the EV travel mode.
    Type: Grant
    Filed: July 31, 2014
    Date of Patent: August 1, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yuji Inoue, Yukihiko Ideshio
  • Publication number: 20170203643
    Abstract: A hybrid driving device that includes a first input that is linked to an internal combustion engine; a rotary electric machine; a transmission that changes a speed of rotation of a second input, and transmits the rotation to an output; a rotor support which rotates integrally with a rotor of the rotary electric machine; a first engagement device; a second engagement device; and a case.
    Type: Application
    Filed: July 3, 2015
    Publication date: July 20, 2017
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daiki SUYAMA, Katsuhiko HATTORI, Hikaru SUGIURA, Tatsuya OKISHIMA, Yukihiko IDESHIO
  • Patent number: 9695742
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: July 4, 2017
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
  • Patent number: 9670838
    Abstract: A vehicle drive includes a speed change mechanism connected to a rotary electric machine; an output member connected to the speed change mechanism and wheels; an engagement device changes a state of engagement between an input member connected to an engine and the speed change mechanism; a hydraulic pump driven by the engine or the rotary electric machine; a first pressure control device that controls pressure supplied from the pump and supplies the pressure to the speed change mechanism; a second, separate hydraulic pressure control device that controls the pressure supplied from the pump and supplies the pressure to the engagement device; and a case that houses the rotary electric machine, speed change mechanism, engagement device, and pump. At least the engagement device is housed in a space formed by the case, and the second hydraulic pressure control device is provided at a part of the case forming the space.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: June 6, 2017
    Assignees: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Mikio Iwase, Daiki Suyama, Naoya Jinnai, Kensuke Wada, Yuji Inoue, Yukihiko Ideshio
  • Publication number: 20170129477
    Abstract: In a vehicle that includes an engine including a starter, an automatic transmission unit having an input shaft coupled to an output shaft of the engine via a first clutch, and a motor generator (hereinafter, referred to as “MG”) coupled to the input shaft of the automatic transmission unit via a second clutch, an electronic control unit starts up the engine with the use of the starter in a state where the MG is disconnected from the engine by releasing at least one of the first clutch or the second clutch when an IG-on operation has been made in an IG-off state (a state where the vehicle is stopped in a P range) and a power control unit that supplies electric power to the MG has a failure.
    Type: Application
    Filed: June 17, 2015
    Publication date: May 11, 2017
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko IDESHIO, Takahiko TSUTSUMI
  • Patent number: 9605605
    Abstract: Provided is a vehicle control apparatus. To start an engine by a motor-generator under the state that a vehicle is stopped, the vehicle control apparatus synchronizes a rotation of the engine with a rotation of the motor-generator at a synchronous rotational speed lower than a target rotational speed to start the engine, and increases a rotational speed of the engine by the motor-generator from the synchronous rotational to the target rotational speed, and starts the engine at the target rotational speed.
    Type: Grant
    Filed: December 9, 2011
    Date of Patent: March 28, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Yukihiko Ideshio, Terufumi Miyazaki, Yuji Inoue, Shingo Eto, Yousuke Michikoshi
  • Publication number: 20170080793
    Abstract: A vehicle drive device, wherein the fluid coupling accommodating space is formed between the rotating electrical machine accommodating space and the speed change mechanism accommodating space in an axial direction of the speed change mechanism and is configured such that no oil is supplied to a region around the fluid coupling, the discharge oil passage has an introducing opening that opens to the second oil reservoir, and a lowest end of the introducing opening is located below a lowest end of the rotating electrical machine.
    Type: Application
    Filed: March 30, 2015
    Publication date: March 23, 2017
    Applicants: AISIN AW CO., LTD., TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Daiki SUYAMA, Katsuhiko HATTORI, Yukihiko IDESHIO
  • Patent number: 9561793
    Abstract: An ECU executes control processing including a step of executing engagement control on a K0 clutch when a D?N operation is performed, a step of keeping the K0 clutch engaged until an N?D operation is performed, a step of executing engagement control on a C1 clutch when the N?D operation is performed, a step of keeping the K0 clutch engaged when a request to operate an engine is issued following the elapse of a predetermined time ?, and a step of executing disengagement control on the K0 clutch when a request to operate the engine has not been issued.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: February 7, 2017
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiji Kuwahara, Yukihiko Ideshio