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公开(公告)号：US20240167559A1
公开(公告)日：2024-05-23
申请号：US18505585
申请日：2023-11-09
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA , AISIN CORPORATION
Inventor： Marina HIRATA , Akitaka ICHIKAWA , Hiroshi KAWANISHI , Tsukasa SAKAMAKI , Shohei NAGATA , Takayoshi HANAI , Teppei YAMASHITA
CPC classification number: F16H57/0424 , H02K7/116
Abstract: A drive unit may include a case comprising an electric motor chamber and a gear chamber; an electric motor comprising a rotor housed in the electric motor chamber; a specific gear housed in the gear chamber; lubricant stored in the electric motor chamber and the gear chamber; and a through hole connecting the electric motor chamber and the gear chamber. An opening of the through hole on a gear chamber side may be positioned so as to face a side surface of the specific gear. A region below a center of the specific gear is defined as a lower region, a part of the lower region that is located rearward of a vertical plane passing through a center axis of the specific gear in a rotation direction of the specific gear is defined as a lower rear region, and the opening may be in the lower rear region.
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公开(公告)号：US20160311305A1
公开(公告)日：2016-10-27
申请号：US15137713
申请日：2016-04-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Akitaka ICHIKAWA , Yoshimitsu YOKOUCHI , Masataka SUGIYAMA , Haruo ISOMURA , Hiroki KUWAMOTO
CPC classification number: B60K6/365 , B60K6/26 , B60K6/445 , B60Y2200/92 , B60Y2306/09 , B60Y2400/48 , B60Y2400/604 , B60Y2400/73 , F16H3/724 , F16H3/727 , F16H57/0006 , F16H57/0025 , F16H57/0037 , F16H2037/0866 , F16H2200/2007 , Y10S903/906 , Y10S903/911
Abstract: A power transmission structure of a vehicle, which is provided with a first rotor, a second rotor, and a metallic cylinder. In this power transmission structure, the reduction shaft and the second rotor shaft receive reaction force from the cylindrical metallic member in radially opposite directions. The cylindrical metallic member is deformable elastically in a radial direction and press-fitted in a part where the reduction shaft and the second rotor shaft of a second electric motor overlap each other in the radial direction adjacent to a spline fitting part of the reduction shaft and the second rotor shaft. Therefore, misalignment between the axis of the reduction shaft and the axis of the second rotor shaft is restrained, and generation of tooth hitting sound is thus restrained. Since the cylindrical metallic member has high rigidity and is restrained from being deformed in a rotation direction, responsiveness of torque transmission is improved.
Abstract translation: 一种车辆的动力传递结构，其具有第一转子，第二转子和金属缸。 在该动力传递结构中，减速轴和第二转子轴在径向相反的方向上接收来自圆柱形金属构件的反作用力。 圆筒状的金属构件沿径向弹性变形，并且压配合在第二电动机的减速轴和第二转子轴的部分上，在与减速轴的花键配合部相邻的径向方向上重叠， 第二转子轴。 因此，减小轴的轴线与第二转子轴的轴线之间的偏移受到限制，从而抑制了产生击牙声。 由于圆柱形金属构件具有高刚性并且被限制在旋转方向上变形，所以转矩传递的响应性得到改善。
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公开(公告)号：US20180372163A1
公开(公告)日：2018-12-27
申请号：US15747070
申请日：2016-07-26
Inventor： Yuji NAKAMURA , Hirofumi KURACHI , Akitaka ICHIKAWA
IPC: F16D7/02 , F16C35/073
Abstract: A tolerance ring includes a cylindrical main body, which has an inner circumferential surface and an outer circumferential surface, and a plurality of protuberances, which protrudes outward in a radial direction from the inner circumferential surface of the main body. The main body includes a recess that extends from an end of the main body to at least one of the protuberances and communicates with an inside of the at least one of the protuberances.
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公开(公告)号：US20180257476A1
公开(公告)日：2018-09-13
申请号：US15542130
申请日：2015-12-24
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Yoshimitsu YOKOUCHI , Hiroki KUWAMOTO , Haruo ISOMURA , Akitaka ICHIKAWA , Hiroatsu ENDO
CPC classification number: B60K6/40 , B60K6/36 , B60K6/445 , F16D1/04 , F16D3/12 , F16D3/64 , F16D3/76 , F16F15/126 , F16F15/136 , Y02T10/6239
Abstract: A support structure for rotating shafts of a vehicle, including: a drive shaft operatively connected to a power transmitting shaft to which a drive force of an engine is transmitted; and a rotor shaft of an electric motor spline-coupled to the drive shaft, each of the rotor shaft of the electric motor and the drive shaft is being supported by at least one bearing, in the support structure, one of the rotor shaft and the drive shaft is constituted by a first rotary shaft and a second rotary shaft which are operatively connected to each other, and an elastic member is interposed between the first rotary shaft and the second rotary shaft such that the first and second rotary shafts are operatively spline-connected to each other through the elastic member.
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Patent Agency Ranking
公开(公告)号：US20240262213A1
公开(公告)日：2024-08-08
申请号：US18432054
申请日：2024-02-05
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Ryuta HAYASHI , Akitaka ICHIKAWA
CPC classification number: B60L15/007 , B60L53/24 , B60L2210/40
Abstract: A drive device disclosed herein may include: a motor casing housing the electric motor; a gear connected to the electric motor; a gear casing housing the gear; an inverter electrically connected to the electric motor; an inverter casing housing the inverter; and a relay box including at least one relay and having a relay circuit configured to connect a charging inlet of the vehicle to a neutral point of the electric motor and to the inverter. The motor casing, the gear casing, and the inverter casing may be arranged in this order along an axial direction extending parallel to a rotation axis of the electric motor. The relay box may be mounted at least to the gear casing in a first direction intersecting the rotation axis of the electric motor.
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公开(公告)号：US20240198781A1
公开(公告)日：2024-06-20
申请号：US18538205
申请日：2023-12-13
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Takayuki NISHIDA , Akitaka ICHIKAWA , Kazuaki ISHIURA
CPC classification number: B60K6/405 , B60K6/24 , B60K6/26 , H02K7/116 , H02K11/33 , B60Y2200/92 , B60Y2400/60 , B60Y2400/61
Abstract: A driving device includes an electric motor configured to drive a wheel of a vehicle, a gear connected to the electric motor, a casing accommodating at least one of the electric motor and the gear, a high voltage component fixed to a side wall of the casing from outside of the casing and electrically connected to the electric motor, and a cover fixed to the side wall of the casing from outside of the casing and covering the high voltage component. The cover is connected to a constituent member located outside the cover.
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公开(公告)号：US20240019023A1
公开(公告)日：2024-01-18
申请号：US18142284
申请日：2023-05-02
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Marina HIRATA , Akitaka ICHIKAWA , Hiroshi KAWANISHI , Tsukasa SAKAMAKI , Shohei NAGATA
IPC: F16H57/04
CPC classification number: F16H57/0434 , F16H57/0483 , F16H57/045
Abstract: In a catch tank, a partition wall is formed that extends along a vehicle front-rear direction and divides the catch tank in a vehicle width direction in a vehicle-mounted state, which helps prevent oil in the catch tank from flowing unevenly to one of a first space and a second space even when the oil surface of the oil tilts during turn of the vehicle, for example. As a result, an appropriate amount of oil required for lubrication is supplied through a second lubrication hole regardless of tilt of the vehicle or turn of the vehicle.
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公开(公告)号：US20180372164A1
公开(公告)日：2018-12-27
申请号：US15747078
申请日：2016-07-26
Inventor： Yuji NAKAMURA , Hirofumi KURACHI , Akitaka ICHIKAWA
IPC: F16D7/02 , F16C35/073
Abstract: A shaft coupling structure includes a shaft, a sleeve, into which the shaft is inserted, and a tolerance ring. The tolerance ring includes a cylindrical main body and a plurality of protuberances, which protrudes outward in a radial direction from an inner circumferential surface of the main body. The tolerance ring is fitted between an outer circumferential surface of the shaft and an inner circumferential surface of the sleeve. A communication passage that connects an inside and an outside of each protuberance is provided between the outer circumferential surface of the shaft and the main body.
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公开(公告)号：US20170067512A1
公开(公告)日：2017-03-09
申请号：US15247241
申请日：2016-08-25
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： Kodo NAKAWATARI , Hiroki KUWAMOTO , Akitaka ICHIKAWA
CPC classification number: F16D1/02 , B60K6/20 , B60K6/26 , B60K6/36 , B60Y2300/74 , F16D1/0835 , F16D1/10 , F16D2001/103 , F16D2300/22 , F16H3/727 , F16H57/0006 , Y10S903/904
Abstract: A power transmission device includes a rotor shaft, a gear shaft, and a rattling suppression member. The rattling suppression member is provided between a first shaft end portion and the gear shaft or between a second shaft end portion and the rotor shaft. The first shaft end portion is a portion, protruding to the gear shaft side from one of a pair of first bearings, of the rotor shaft, while the second shaft end portion is a portion, protruding to the rotor shaft side from one of a pair of second bearings, of the gear shaft.
Abstract translation: 动力传递装置包括转子轴，齿轮轴和咔嗒声抑制构件。 该抑制构件设置在第一轴端部与齿轮轴之间或第二轴端部与转子轴之间。 第一轴端部是从转子轴的一对第一轴承中的一个突出到齿轮轴侧的部分，而第二轴端部是从一对中突出到转子轴侧的部分 的第二轴承，齿轮轴。
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