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).
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Patent number: 11052767Abstract: 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: GrantFiled: January 14, 2019Date of Patent: July 6, 2021Assignee: Toyota Jidosha Kabushiki KaishaInventor: Hiroyuki Tsukashima
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Publication number: 20190217723Abstract: 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: ApplicationFiled: January 14, 2019Publication date: July 18, 2019Inventor: Hiroyuki Tsukashima
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Publication number: 20140137702Abstract: 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: ApplicationFiled: November 22, 2013Publication date: May 22, 2014Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Tsukashima, Hirotaka Kamijo, Tomoko Shimana, Daisuke Umiguchi
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Publication number: 20130046426Abstract: 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: ApplicationFiled: May 18, 2010Publication date: February 21, 2013Inventors: Hiroyuki Tsukashima, Hirotaka Kamijo, Tomoko Shimana, Daisuke Umiguchi
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Patent number: 7928617Abstract: 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: GrantFiled: January 27, 2006Date of Patent: April 19, 2011Assignees: Toyota Jidosha Kabushiki Kaisha, Tamagawa Seiki Co., Ltd.Inventors: Hiroyuki Tsukashima, Hiromi Makiuchi
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Patent number: 7695320Abstract: 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: GrantFiled: June 5, 2006Date of Patent: April 13, 2010Assignees: 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
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Patent number: 7615975Abstract: 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: GrantFiled: February 10, 2005Date of Patent: November 10, 2009Assignees: 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
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Publication number: 20090130903Abstract: 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: ApplicationFiled: June 5, 2006Publication date: May 21, 2009Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Satoshi Tsuruta, Kazumoto Konda
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Publication number: 20090102312Abstract: 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: ApplicationFiled: May 16, 2007Publication date: April 23, 2009Applicant: Toyota Jidosha Kabushiki KaishaInventor: Hiroyuki Tsukashima
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Publication number: 20090039720Abstract: 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: ApplicationFiled: March 16, 2007Publication date: February 12, 2009Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, AUTONETWORKS TECHNOLOGIES, LTD., SUMITOMO WIRING SYSTEMS, LTD., SUMITOMO ELECTRIC INDUSTRIES, LTD.Inventors: Hiroyuki Tsukashima, Sho Miyazaki
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Patent number: 7476996Abstract: 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: GrantFiled: October 7, 2005Date of Patent: January 13, 2009Assignees: Tamagawa Seiki Kabushiki Kaisha, Toyota Jidosha Kabushiki KaishaInventors: Hiromi Makiuchi, Hiroyuki Tsukashima
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Patent number: 7367825Abstract: 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: GrantFiled: January 4, 2005Date of Patent: May 6, 2008Assignees: 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
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Patent number: 7354297Abstract: 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: GrantFiled: February 15, 2005Date of Patent: April 8, 2008Assignees: 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
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Patent number: 7343992Abstract: 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: GrantFiled: March 17, 2004Date of Patent: March 18, 2008Assignee: Toyota Jidosha Kabushiki KaishaInventors: Kazuaki Shingo, Hiroyuki Tsukashima
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Publication number: 20080036315Abstract: 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: ApplicationFiled: October 7, 2005Publication date: February 14, 2008Inventors: Hiromi Makiuchi, Hiroyuki Tsukashima
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Publication number: 20080024021Abstract: 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: ApplicationFiled: January 27, 2006Publication date: January 31, 2008Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, TAMAGAWA SEIKI CO., LTD.Inventors: Hiroyuki Tsukashima, Hiromi Makiuchi
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Publication number: 20070296290Abstract: 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: ApplicationFiled: February 10, 2005Publication date: December 27, 2007Applicants: 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
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Publication number: 20070138882Abstract: 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: ApplicationFiled: February 10, 2005Publication date: June 21, 2007Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
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Publication number: 20070123105Abstract: 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: ApplicationFiled: February 15, 2005Publication date: May 31, 2007Applicant: Toyota Jidosha Kabushiki KaishaInventors: Hiroyuki Tsukashima, Takamasa Takeuchi, Kazumoto Konda, Sho Miyazaki
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Publication number: 20070117429Abstract: 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: ApplicationFiled: January 4, 2005Publication date: May 24, 2007Applicants: 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