Patents by Inventor Hiroyuki Tsukashima

Hiroyuki Tsukashima 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: 11052767
    Abstract: The motor vehicle comprises a first motor configured to drive front wheels; a second motor configured to drive rear wheels; and a control device configured to control the first motor and the second motor, such that the motor vehicle is driven with a required torque for driving. The control device controls the first motor and the second motor to set a larger value to a rear wheel distribution ratio that is a ratio of a torque of the rear wheels to the required torque, when the motor vehicle runs on a low ? road having a road surface friction coefficient equal to or less than a predetermined value and is currently turned, compared with a value when the motor vehicle does not run on the low ? road or when the motor vehicle is not currently turned.
    Type: Grant
    Filed: January 14, 2019
    Date of Patent: July 6, 2021
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Tsukashima
  • Publication number: 20190217723
    Abstract: The motor vehicle comprises a first motor configured to drive front wheels; a second motor configured to drive rear wheels; and a control device configured to control the first motor and the second motor, such that the motor vehicle is driven with a required torque for driving. The control device controls the first motor and the second motor to set a larger value to a rear wheel distribution ratio that is a ratio of a torque of the rear wheels to the required torque, when the motor vehicle runs on a low ? road having a road surface friction coefficient equal to or less than a predetermined value and is currently turned, compared with a value when the motor vehicle does not run on the low ? road or when the motor vehicle is not currently turned.
    Type: Application
    Filed: January 14, 2019
    Publication date: July 18, 2019
    Inventor: Hiroyuki Tsukashima
  • Publication number: 20140137702
    Abstract: A vehicle control system (100) includes a rotary electric machine unit (40), a PCU (14) including an inverter circuit, and a controller (18). The rotary electric machine unit (40) includes a casing defining an interior space and containing a rotary electric machine and a lubricating cooling fluid disposed therein and a cover, and a breather (70) which is connected to the interior space via an on-off valve (58). The on-off valve (58) is normally in an open state. The controller (18) outputs a valve-closing signal to the on-off valve (58) when a single phase short circuit fault occurs in the inverter circuit which drives the rotary electric machine. A mechanical mechanism can also be used to place the on-off valve (58) into a closed state.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 22, 2014
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Tsukashima, Hirotaka Kamijo, Tomoko Shimana, Daisuke Umiguchi
  • Publication number: 20130046426
    Abstract: A vehicle control system (100) includes a rotary electric machine unit (40), a PCU (14) including an inverter circuit, and a controller (18). The rotary electric machine unit (40) includes a casing defining an interior space and containing a rotary electric machine and a lubricating cooling fluid disposed therein and a cover, and a breather (70) which is connected to the interior space via an on-off valve (58). The on-off valve (58) is normally in an open state. The controller (18) outputs a valve-closing signal to the on-off valve (58) when a single phase short circuit fault occurs in the inverter circuit which drives the rotary electric machine. A mechanical mechanism can also be used to place the on-off valve (58) into a closed state.
    Type: Application
    Filed: May 18, 2010
    Publication date: February 21, 2013
    Inventors: Hiroyuki Tsukashima, Hirotaka Kamijo, Tomoko Shimana, Daisuke Umiguchi
  • Patent number: 7928617
    Abstract: A resolver fixing structure which does not cause distortion at a resolver stator is provided. The resolver fixing structure arranged between coil ends of a stator constituting a rotating electrical machine includes a ring portion as a base member having a hole, and a resolver stator press-fitted into the hole. The resolver stator has an outer circumferential portion provided with a shield member coming into contact with the hole.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: April 19, 2011
    Assignees: Toyota Jidosha Kabushiki Kaisha, Tamagawa Seiki Co., Ltd.
    Inventors: Hiroyuki Tsukashima, Hiromi Makiuchi
  • Patent number: 7695320
    Abstract: The shield shell is formed of a shield shell main body, a shield shell auxiliary member and a fixing member. The shield shell main body is made of die-cast aluminum. The shield shell auxiliary member is formed by pressing a steel plate, and has a surface plated with gold. The fixing member has a ring shape, which is formed by pressing a steel plate. With this configuration, it is possible to provide a shield shell that can be manufactured at a low cost, that can improve reliability of the shielding effect, and that can improve assembling workability of the shielded wire.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: April 13, 2010
    Assignees: Toyota Jidosha Kabushiki Kaisha, Autonetworks Technologies, Ltd., Aisin AW Co., Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Satoshi Tsuruta, Kazumoto Konda
  • Patent number: 7615975
    Abstract: A cable for supplying electric power to a motor is electrically connected to an inner conductor of a terminal block via a contact by a mating structure of a male connector and a female connector. A connecting member for electrically connecting the inner conductor and a motor winding includes a fixed terminal and a movable terminal. The fixed terminal is electrically connected to the inner conductor by a fixing member and has a portion formed to extend along a terminal at the tip of the motor winding. The movable terminal is elastically deformable in accordance with the position of the terminal and arranged to hold the terminal interposed between itself and the fixed terminal. As a result, a motor module can be assembled to the terminal block integrally formed with a housing, while component tolerance is effectively absorbed by the connecting member.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: November 10, 2009
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd., Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Publication number: 20090130903
    Abstract: The shield shell is formed of a shield shell main body, a shield shell auxiliary member and a fixing member. The shield shell main body is made of die-cast aluminum. The shield shell auxiliary member is formed by pressing a steel plate, and has a surface plated with gold. The fixing member has a ring shape, which is formed by pressing a steel plate. With this configuration, it is possible to provide a shield shell that can be manufactured at a low cost, that can improve reliability of the shielding effect, and that can improve assembling workability of the shielded wire.
    Type: Application
    Filed: June 5, 2006
    Publication date: May 21, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Satoshi Tsuruta, Kazumoto Konda
  • Publication number: 20090102312
    Abstract: An insulator allowing a coil to be wound with large tension exerted and a rotating electric machine having the insulator are provided. An insulator (140) can be attached to stator teeth (110) such that the insulator has a coil wound thereon, and the insulator (140) includes a first member implemented as a framework (940) forming a framework of the insulator (140) and a second member implemented as a sheath (950) providing an external surface of the insulator (140) and providing insulation, and the framework (940) is larger in stiffness than the sheath (950).
    Type: Application
    Filed: May 16, 2007
    Publication date: April 23, 2009
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventor: Hiroyuki Tsukashima
  • Publication number: 20090039720
    Abstract: A terminal module for a rotating electric machine, allowing automatic assembling, is provided. The terminal module for a rotating electric machine includes a polygonal rail (100) provided with a groove, and a polygonal bus bar fitted in the groove.
    Type: Application
    Filed: March 16, 2007
    Publication date: February 12, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroyuki Tsukashima, Sho Miyazaki
  • Patent number: 7476996
    Abstract: A resolver external conductor fixing structure which includes a connection body having a plurality of leads, and a terminal pin holding part formed on a portion of an insulation cover for an annular stator. The terminal pin holding part and the connection body are configured to detachably engage to allow the leads to be disconnected during assembly of a resolver and connected when assembly is complete.
    Type: Grant
    Filed: October 7, 2005
    Date of Patent: January 13, 2009
    Assignees: Tamagawa Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiromi Makiuchi, Hiroyuki Tsukashima
  • Patent number: 7367825
    Abstract: A connector connection structure includes: a female connector on a housing accommodating a dynamo-electric machine mounted in a vehicle; and a male connector shaped so as to be fitted into the female connector by inserting it with a force not smaller than a predetermined amount. The male connector includes a contact joinable with a contact of the female connector to be electrically connected, and a rod-like lever connected with the male connector via a fulcrum. The lever generates the force not smaller than a predetermined amount by applying, with its one end's position being restricted, a rotation force to the other end. The housing includes a protrusion for restricting the position of the one end.
    Type: Grant
    Filed: January 4, 2005
    Date of Patent: May 6, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd., Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Patent number: 7354297
    Abstract: A male connector to be connected to a female connector provided at a housing accommodating a vehicle-mounted electrical device includes a contact point to be connected to a contact of the female connector, a cable connected to the contact point, and a shield shell covering the contact point. A fixing structure for the male connector includes a bolt for fixing the shield shell to the housing, on the contact point side, and a clamp for fixing the cable to the housing, on the cable side. The fixed state of the cable established by the clamp is such a state as to allow for more movement of an object to be fixed than does the fixed state of the shield shell established by the bolt.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: April 8, 2008
    Assignees: Toyota Jidosha Kabushiki Kaisha, Aisin AW Co., Ltd., Autonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Patent number: 7343992
    Abstract: According to an aspect of the invention, a hybrid vehicle comprises an engine which is mounted in an engine room and serves as a driving force, a transmission which is disposed adjacent to the engine and incorporates at least one electric motor that serves as the driving source, an inverter disposed in the engine room, and at least one high voltage wire which is routed behind the engine with respect to a vehicle longitudinal direction and connects the inverter with the electric motor incorporated in the transmission.
    Type: Grant
    Filed: March 17, 2004
    Date of Patent: March 18, 2008
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Kazuaki Shingo, Hiroyuki Tsukashima
  • Publication number: 20080036315
    Abstract: The present invention provides a resolver external conductor fixing structure in which a connection body to which leads are connected is formed detachable from a terminal pin holding part so that the leads can be disconnected during the assembly of a resolver and connected after the assembly. An insulation cover (100) is formed on a ring-like stator (1) by integral molding, a terminal pin holding part (8) is formed at a part of the insulation cover (100), and a connection body (101) having leads (11) is formed detachable from the terminal pin holding part (8). Thus, during the assembly of the resolver, the leads (11) can be disconnected, and after the resolver is assembled, the leads (11) can be connected.
    Type: Application
    Filed: October 7, 2005
    Publication date: February 14, 2008
    Inventors: Hiromi Makiuchi, Hiroyuki Tsukashima
  • Publication number: 20080024021
    Abstract: A resolver fixing structure which does not cause distortion at a resolver stator is provided. The resolver fixing structure arranged between coil ends (301) of a stator (302) constituting a rotating electrical machine includes a ring portion (305) as a base member having a hole (310), and a resolver stator (41) press-fitted into the hole (310). The resolver stator (41) has an outer circumferential portion provided with a shield member (242) coming into contact with the hole (310).
    Type: Application
    Filed: January 27, 2006
    Publication date: January 31, 2008
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TAMAGAWA SEIKI CO., LTD.
    Inventors: Hiroyuki Tsukashima, Hiromi Makiuchi
  • Publication number: 20070296290
    Abstract: A cable (150) for supplying electric power to a motor is electrically connected to an inner conductor (125) of a terminal block (120) via a contact (124) by a mating structure of a male connector (200) and a female connector (108). A connecting member (130) for electrically connecting the inner conductor (125) and a motor winding (116) includes a fixed terminal (132) and a movable terminal (135). The fixed terminal (132) is electrically connected to the inner conductor (125) by a fixing member (140) and has a portion formed to extend along a terminal (117) at the tip of the motor winding (116). The movable terminal (135) is elastically deformable in accordance with the position of the terminal (117) and arranged to hold the terminal interposed between itself and the fixed terminal (132). As a result, a motor module can be assembled to the terminal block (120) integrally formed with a housing (100), while component tolerance is effectively absorbed by the connecting member (130).
    Type: Application
    Filed: February 10, 2005
    Publication date: December 27, 2007
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AISIN AU CO., LTD., AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRICS INDUSTRIES, LTD.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Publication number: 20070138882
    Abstract: A feed cable to a motor is electrically connected to an internal conductor of a terminal block by a contact, by a mating structure of a male connector and a female connector. To the tip of varnish-treated motor winding, a flexible bus bar that is a flexible member is connected. By electrically connecting the motor winding to the internal conductor via the flexible bus bar with high flexibility, the feed cable and the motor winding are electrically connected. The component tolerance can be absorbed by deformation of the flexible bus bar, and the motor module can be fastened to the terminal block unforcedly.
    Type: Application
    Filed: February 10, 2005
    Publication date: June 21, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Publication number: 20070123105
    Abstract: A male connector to be connected to a female connector provided at a housing accommodating a vehicle-mounted electrical device includes a contact point to be connected to a contact of the female connector, a cable connected to the contact point, and a shield shell covering the contact point. A fixing structure for the male connector includes a bolt for fixing the shield shell to the housing, on the contact point side, and a clamp for fixing the cable to the housing, on the cable side. The fixed state of the cable established by the clamp is such a state as to allow for more movement of an object to be fixed than does the fixed state of the shield shell established by the bolt.
    Type: Application
    Filed: February 15, 2005
    Publication date: May 31, 2007
    Applicant: Toyota Jidosha Kabushiki Kaisha
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
  • Publication number: 20070117429
    Abstract: A connector connection structure includes: a female connector on a housing accommodating a dynamo-electric machine mounted in a vehicle; and a male connector shaped so as to be fitted into the female connector by inserting it with a force not smaller than a predetermined amount. The male connector includes a contact joinable with a contact of the female connector to be electrically connected, and a rod-like lever connected with the male connector via a fulcrum. The lever generates the force not smaller than a predetermined amount by applying, with its one end's position being restricted, a rotation force to the other end. The housing includes a protrusion for restricting the position of the one end.
    Type: Application
    Filed: January 4, 2005
    Publication date: May 24, 2007
    Applicants: TOYOATA JIDOSHA KABUSHIKI KAISHA, AISIN AW CO., LTD., AUTONETWOEKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki