Patents by Inventor Michitaka Tsuchida

Michitaka Tsuchida 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: 10502261
    Abstract: A concave portion provided in at least one of the first assembled surface, and other assembled surfaces for fastening the driving force source, in the region corresponding to the outer race of the tapered roller bearing, the other assembled surfaces provided to one of the fixed component and the driving force source.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: December 10, 2019
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Koichi Kato, Shinichi Baba, Shinichiro Suenaga, Iori Matsuda, Michitaka Tsuchida, Akiko Nishimine
  • Patent number: 10487888
    Abstract: Since one end of a spring is received by a planar portion of a spring seat provided on any one of an outer plate and an inner plate, it is possible to support the spring with a planar member without machining a bottom wall face of the outer plate into a planar shape. Since the spring seat has seat guide portions that contact the outer plate, it is possible to suppress the fluctuation of the spring seat and the fluctuation of the spring by the seat guide portions, so it is possible to reliably prevent interference of the spring with its peripheral portion. Therefore, a load on the spring is reduced, so it is possible to improve the durability of a one-way clutch.
    Type: Grant
    Filed: November 29, 2016
    Date of Patent: November 26, 2019
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, NSK-WARNER K.K.
    Inventors: Michinobu Suzuki, Yuji Iwase, Shotaro Kato, Michitaka Tsuchida, Yota Mizuno, Koichi Kato, Takaya Yamada, Hiroyuki Ohishi, Tomoyuki Miyazaki
  • Publication number: 20180065617
    Abstract: A control device for a hybrid vehicle includes a rotation detector and electronic control unit. The rotation detector is configured to detect a rotational state of the third rotational element of the hybrid vehicle. The electronic control unit is configured to control a first motor generator of the hybrid vehicle such that output torque of the first motor generator becomes zero when the electronic control unit determines, based on the rotational state of the third rotational element, that the third rotational element has a rotational fluctuation while the hybrid vehicle is travelling in a dual drive motor travelling mode. The dual drive motor travelling mode is a mode in which the hybrid vehicle travels while both the first motor generator and a second motor generator serve as driving force sources for travelling in a state where a first rotational element is fixed by a lock mechanism.
    Type: Application
    Filed: September 6, 2017
    Publication date: March 8, 2018
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Michitaka TSUCHIDA, Michinobu SUZUKI, Yosuke SUZUKI, Shinichi BABA, Koichi KATO, Shinichiro SUENAGA
  • Publication number: 20170159727
    Abstract: Since one end of a spring is received by a planar portion of a spring seat provided on any one of an outer plate and an inner plate, it is possible to support the spring with a planar member without machining a bottom wall face of the outer plate into a planar shape. Since the spring seat has seat guide portions that contact the outer plate, it is possible to suppress the fluctuation of the spring seat and the fluctuation of the spring by the seat guide portions, so it is possible to reliably prevent interference of the spring with its peripheral portion. Therefore, a load on the spring is reduced, so it is possible to improve the durability of a one-way clutch.
    Type: Application
    Filed: November 29, 2016
    Publication date: June 8, 2017
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NSK-WARNER K.K.
    Inventors: Michinobu SUZUKI, Yuji IWASE, Shotaro KATO, Michitaka TSUCHIDA, Yota MIZUNO, Koichi KATO, Takaya YAMADA, Hiroyuki OHISHI, Tomoyuki MIYAZAKI
  • Patent number: 9505444
    Abstract: A vehicle front structure includes: a power unit provided on a front part of a vehicle; a front side member which is arranged outside the power unit in a vehicle width direction and which extends in a vehicle longitudinal direction; and a load receiving portion which is provided on a side portion on a front side member side of the power unit and which is located inside the front side member in a vehicle width direction while stiffness thereof in the vehicle width direction is higher than other location of the side portion.
    Type: Grant
    Filed: September 2, 2014
    Date of Patent: November 29, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Michitaka Tsuchida, Shunsuke Hayashi, Tatsuo Obata, Kazuaki Ishiura, Takeshi Kuwahara
  • Patent number: 9441684
    Abstract: A parking pawl achieves a parking locked state by engaging with a parking gear. A parking rod is configured to move along the axial direction of the parking rod. The parking rod passes through a cam member. The cam member is configured to move from a first position to a second position in accordance with movement of the parking rod. The cam member includes a tapered portion that presses the parking pawl such that the parking pawl is engaged with the parking gear when the cam member moves from the first position to the second position. The parking rod includes a protruding portion that protrudes from the cam member. A guide member is configured to guide the cam member, and is configured to support the protruding portion and the tapered portion when the cam member is at the first position.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: September 13, 2016
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuaki Ishiura, Michitaka Tsuchida, Tatsuo Obata
  • Publication number: 20160146332
    Abstract: A driving system includes a first oil receiver and a power split mechanism. The power split mechanism includes an input shaft and a hollow shaft portion. The input shaft has a lubricating oil passage and a first oil hole. The first oil hole communicates the lubricating oil passage with an outer face of the input shaft. The hollow shaft portion is fitted to a radially outer side of the input shaft so as to be relatively rotatable, and has a through portion extending through from an inner face to an outer face of the hollow shaft portion. The first oil receiver is arranged on an outer side of the through portion in a radial direction of the hollow shaft portion, and configured to trap oil spattered outward from the through portion in the radial direction of the hollow shaft portion and guide trapped oil to the pinion gears.
    Type: Application
    Filed: November 20, 2015
    Publication date: May 26, 2016
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Makoto TANIGUCHI, Michitaka TSUCHIDA, Mitsuki WATANABE, Masashi SAKAGUCHI
  • Patent number: 9221495
    Abstract: Motor-generators are incorporated in front wheels and drive the front wheels, respectively. An ECU determines whether or not a steering apparatus including a steering actuator, a tie rod and a steering angle sensor has failed, based on an operation angle of a steering wheel from a steering wheel angle sensor and a steering angle of the front wheels from the steering angle sensor. When the ECU determines that the steering apparatus has failed, the ECU provides torque difference for a torque instruction for the motor-generators in accordance with the operation angle of the steering wheel.
    Type: Grant
    Filed: December 12, 2006
    Date of Patent: December 29, 2015
    Assignees: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN SEIKI KABUSHIKI KAISHA
    Inventors: Ryoji Mizutani, Michitaka Tsuchida, Yasuaki Tahara, Yuki Tojima, Shigetaka Isogai
  • Patent number: 9132832
    Abstract: A vehicle power transmission device is disposed on a hybrid vehicle having an engine and an electric motor, the vehicle power transmission device includes a first member having one of outer circumferential teeth disposed around one axial center or inner circumferential teeth meshing with the outer circumferential teeth and a second member having the other teeth, the inner circumferential teeth and the outer circumferential teeth meshes with each other to limit relative rotation around the one axial center between the first member and the second member, the relative rotation between the first member and the second member is limited to transmit torque of the electric motor to drive wheels.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: September 15, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akitaka Ichikawa, Yoshimitsu Yokouchi, Masahiro Kojima, Ryuji Ibaraki, Michitaka Tsuchida, Shinichiro Suenaga, Hiromichi Kimura
  • Publication number: 20150226277
    Abstract: A parking pawl achieves a parking locked state by engaging with a parking gear. A parking rod is configured to move along the axial direction of the parking rod. The parking rod passes through a cam member. The cam member is configured to move from a first position to a second position in accordance with movement of the parking rod. The cam member includes a tapered portion that presses the parking pawl such that the parking pawl is engaged with the parking gear when the cam member moves from the first position to the second position. The parking rod includes a protruding portion that protrudes from the cam member. A guide member is configured to guide the cam member, and is configured to support the protruding portion and the tapered portion when the cam member is at the first position.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 13, 2015
    Inventors: Kazuaki Ishiura, Michitaka Tsuchida, Tatsuo Obata
  • Patent number: 9102319
    Abstract: A vehicle power transmission device is disposed on a hybrid vehicle having an engine and an electric motor, the vehicle power transmission device includes a first member having one of outer circumferential teeth disposed around one axial center or inner circumferential teeth meshing with the outer circumferential teeth and a second member having the other teeth, the inner circumferential teeth and the outer circumferential teeth meshes with each other to limit relative rotation around the one axial center between the first member and the second member, the relative rotation between the first member and the second member is limited to transmit torque of the electric motor to drive wheels.
    Type: Grant
    Filed: November 8, 2011
    Date of Patent: August 11, 2015
    Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akitaka Ichikawa, Yoshimitsu Yokouchi, Masahiro Kojima, Ryuji Ibaraki, Michitaka Tsuchida, Shinichiro Suenaga, Hiromichi Kimura
  • Publication number: 20150060179
    Abstract: A vehicle front structure includes: a power unit provided on a front part of a vehicle; a front side member which is arranged outside the power unit in a vehicle width direction and which extends in a vehicle longitudinal direction; and a load receiving portion which is provided on a side portion on a front side member side of the power unit and which is located inside the front side member in a vehicle width direction while stiffness thereof in the vehicle width direction is higher than other location of the side portion.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 5, 2015
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Michitaka Tsuchida, Shunsuke Hayashi, Tatsuo Obata, Kazuaki Ishiura, Takeshi Kuwahara
  • Patent number: 8905881
    Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, an output bearing that rotatably supports the output member, and a rotor bearing that rotatably supports the rotor. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on a radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the rotor bearing are arranged overlapping at a position in the axial direction.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: December 9, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Natsuki Sada, Tomoo Atarashi, Hirotaka Yata, Tomoaki Nishizuru, Michitaka Tsuchida
  • Patent number: 8905885
    Abstract: A vehicle drive device configured with reduced axial dimensions, while still having appropriate lubrication. The vehicle drive device is configured with an input shaft coupled to an engine, a rotary electric machine, and an output shaft coupled to wheels. A power transfer mechanism couples input shaft, the rotary electric machine, and the output shaft. A case houses at least the rotary electric machine and the power transfer mechanism. An oil reserving portion capable of reserving oil supplied by rotation of the power transfer mechanism is provided above the rotor shaft inside the case. A communication oil passage is oriented between the oil reserving portion and an inner circumferential space formed inside the rotor shaft. The rotor shaft is disposed to be inserted into the inside housing space, and has a supply communication hole that communicates between the inner circumferential space and the inside housing space.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: December 9, 2014
    Assignees: Aisin Aw Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Yoshihisa Yamamoto, Masamitsu Seno, Takuya Komatsu, Natsuki Sada, Hirotaka Yata, Tomoo Atarashi, Hiromichi Kimura, Takeshi Kuwahara, Tatsuo Obata, Michitaka Tsuchida, Yoshinori Morita, Shingo Kato
  • Publication number: 20140335998
    Abstract: A vehicle power transmission device is disposed on a hybrid vehicle having an engine and an electric motor, the vehicle power transmission device includes a first member having one of outer circumferential teeth disposed around one axial center or inner circumferential teeth meshing with the outer circumferential teeth and a second member having the other teeth, the inner circumferential teeth and the outer circumferential teeth meshes with each other to limit relative rotation around the one axial center between the first member and the second member, the relative rotation between the first member and the second member is limited to transmit torque of the electric motor to drive wheels.
    Type: Application
    Filed: November 8, 2011
    Publication date: November 13, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Akitaka Ichikawa, Yoshimitsu Yokouchi, Masahiro Kojima, Ryuji Ibaraki, Michitaka Tsuchida, Shinichiro Suenaga, Hiromichi Kimura
  • Patent number: 8882622
    Abstract: An electric drive device including an input member drivably coupled to an internal combustion engine, a first rotary electric machine, a second rotary electric machine disposed on an axis different from that of the first rotary electric machine, an output member drivably coupled to wheels and the second rotary electric machine, a power distribution device that distributes torque transferred from the input member to the output member and the first rotary electric machine, and a case.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: November 11, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Natsuki Sada, Tomoo Atarashi, Hirotaka Yata, Tomoaki Nishizuru, Michitaka Tsuchida
  • Patent number: 8870697
    Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the output gear are arranged overlapping at a position in the axial direction.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: October 28, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Natsuki Sada, Tomoo Atarashi, Hirotaka Yata, Tomoaki Nishizuru, Michitaka Tsuchida
  • Patent number: 8840511
    Abstract: A vehicle drive device configured with an input member coupled to an internal combustion engine, a rotary electric machine, an output member coupled to wheels, and a power transfer mechanism that drivably couples the input member, the rotary electric machine, and the output member. An oil collecting portion is configured to collect oil supplied by rotation of the power transfer mechanism, The collected oil falling passage is configured to cause the oil collected by the oil collecting portion to flow downward to be supplied to a portion of a facing wall surface located above a cylindrical member. A communication oil passage communicates between the gap and the inside housing space is formed at a portion of abutment between the subject support bearing and the support projecting portion.
    Type: Grant
    Filed: January 16, 2012
    Date of Patent: September 23, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jiddosha Kabushiki Kaisha
    Inventors: Masamitsu Seno, Hirotaka Yata, Natsuki Sada, Takuya Komatsu, Tomoo Atarashi, Michinobu Suzuki, Hiromichi Kimura, Michitaka Tsuchida
  • Patent number: 8808128
    Abstract: A hybrid drive system includes an input member, a rotating electric machine, a power distributing apparatus that distributes and transmits torque that is transmitted to the input member to the rotating electric machine and an output member, an output gear capable of outputting torque transmitted to the output member, and an output bearing that is rotatably supports the output member from the radially inner side. The entire apparatus is arranged overlapping with the output member at a position in an axial direction on the radially inner side of the output member, and a ring gear of the apparatus is integrally provided with the output member, on an inner peripheral surface of the output member. The output gear is integrally provided with the output member, on an outer peripheral surface of the output member. The output bearing and the output gear are arranged overlapping at a position in the axial direction.
    Type: Grant
    Filed: February 10, 2011
    Date of Patent: August 19, 2014
    Assignees: Aisin AW Co., Ltd., Toyota Jidosha Kabushiki Kaisha
    Inventors: Natsuki Sada, Tomoo Atarashi, Hirotaka Yata, Tomoaki Nishizuru, Michitaka Tsuchida
  • Patent number: 8808125
    Abstract: A hybrid vehicle driving apparatus includes: a first rotor shaft of a first electric motor, the first electric motor being disposed on a first axis; a power distribution mechanism that includes a planetary gear device and is disposed on the first axis; an output gear shaft that serves as an output member of the power distribution mechanism and is disposed on the first axis; a counter shaft disposed on a second axis; a second rotor shaft of a second electric motor disposed on a third axis; a power transmission shaft disposed on the third axis; a differential gear disposed on a fourth axis; and a casing that includes a plurality of case members. The output gear shaft, the power transmission shaft, the counter shaft, the differential gear, the first rotor shaft, and the second rotor shaft are rotatably supported by a common case member that is one of the plurality of case members.
    Type: Grant
    Filed: July 19, 2012
    Date of Patent: August 19, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin Aw Co., Ltd.
    Inventors: Michitaka Tsuchida, Tomoaki Nishizuru, Tatsuo Obata, Natsuki Sada, Hirotaka Yata, Tomoo Atarashi