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1. 发明申请

US20190264790A1 VEHICLE-DRIVING APPARATUS 审中-公开
公开(公告)号：US20190264790A1
公开(公告)日：2019-08-29
申请号：US15998721
申请日：2017-01-18
申请人： NTN CORPORATION
发明人： Kenichi SUZUKI , Ryou YUKISHIMA
IPC分类号： F16H48/36 , F16H48/10 , B60L15/20
摘要： An object of the present invention is to decrease the size of a torque difference amplification mechanism to decrease the size and weight of a vehicle driving wheel apparatus which includes the torque difference amplification mechanism. The invention includes a gear unit 30, which is provided between electric motors (2L, 2R) each having an outer rotor (5) and left and right driving wheels and is constituted by two planetary gear mechanisms (3L, 3R) each having three elements and two degrees of freedom assembled coaxially with each other. The planetary gear mechanisms include: input outer gears (RL, RR) coupled to the outer rotors (5) of the electric motors (2L, 2R); output planetary carriers (CL, CR) coaxial with the outer gears (RL, RR); sun gears SL, SR which are coaxial with the outer gears (RL, RR); and planetary gears PL, PR serving as revolution gears. One planetary carrier (CL) of the two planetary gear mechanisms (3L, 3R) is joined to the sun gear (SR) in the other by a first joint member (31); the sun gear (SL) is joined to the planetary carrier (CR) in the other by a second joint member (32) and these joint members are disposed coaxially with each other. The planetary carriers (CL, CR) of the planetary gear mechanism (SL, SR) are coupled to output gear shafts (14L, 14R) of the driving wheels.

2. 发明申请

US20190001826A1 DRIVE DEVICE FOR VEHICLES 审中-公开
公开(公告)号：US20190001826A1
公开(公告)日：2019-01-03
申请号：US16124870
申请日：2018-09-07
申请人： NTN CORPORATION
发明人： Kenichi SUZUKI
IPC分类号： B60L11/14 , H02K9/19 , H02K11/25 , B60W10/08 , B60W20/00
摘要： An electric motor includes a housing, a stator, and a rotor. The stator is composed of a stator core and a stator coil. The stator coil is composed of a plurality of individual coils provided to teeth of the stator core. The housing has lubricating oil supply portion, through which the lubricating oil is supplied onto coil ends of upper individual coils. A temperature detector for detecting the temperature of the stator coil is disposed at a position lower than an axis of a rotor and higher than an oil level of the lubricating oil accumulated in the bottom portion of the housing.

3. 发明申请

US20160355084A1 WHEEL DRIVE MOTOR AND IN-WHEEL MOTOR DRIVE ASSEMBLY 审中-公开
标题翻译：车轮驱动电机和车轮电机驱动总成
公开(公告)号：US20160355084A1
公开(公告)日：2016-12-08
申请号：US15116521
申请日：2015-01-27
申请人： NTN CORPORATION
发明人： Tomohisa UOZUMI , Masaru KURODA , Kenichi SUZUKI
IPC分类号： B60K7/00 , B60B27/00 , H02K7/08 , B60K17/04 , H02K1/32 , H02K9/19
CPC分类号： B60K7/0007 , B60B27/00 , B60K17/043 , H02K1/30 , H02K1/32 , H02K7/006 , H02K7/08 , H02K7/116 , H02K9/19 , H02K2213/03 , Y02T10/641
摘要： The wheel drive motor according to the invention includes a motor shaft (35) having a large diameter portion (35d) located at a central part in the axial direction and a small diameter portion (35b) located on a first side in the axial direction, a bearing (36b) rotatably supporting the small diameter portion (35b), and a rotor (24) secured to an outer circumferential surface (35j) of the large diameter portion (35d). An end part (24p) of the rotor (24) located on the first side in the axial direction projects over an end face (35e) of the large diameter portion (35d) located on the first side in the axial direction toward the side on which the small diameter portion (35b) is.
摘要翻译：根据本发明的车轮驱动电动机包括具有位于轴向中心部分的大直径部分（35d）的电动机轴（35）和位于轴向方向上的第一侧的小直径部分（35b）可旋转地支撑小直径部分（35b）的轴承（36b）和固定到大直径部分（35d）的外圆周表面（35j）上的转子（24）。位于轴向第一侧的转子（24）的端部（24p）在位于轴向上的第一侧的大直径部（35d）的端面（35e）的上方突出，小直径部分（35b）。

4. 发明申请

US20160355083A1 IN-WHEEL MOTOR DRIVE DEVICE 审中-公开
标题翻译：内轮电机驱动装置
公开(公告)号：US20160355083A1
公开(公告)日：2016-12-08
申请号：US15102334
申请日：2014-11-18
申请人： NTN CORPORATION
发明人： Masaru KURODA , Tomohisa UOZUMI , Kenichi SUZUKI
IPC分类号： B60K7/00 , H02K7/08 , H02K15/14 , H02K1/28 , H02K7/00 , F16H1/32 , H02K7/116
CPC分类号： B60K7/0007 , B60K7/00 , B60K11/02 , B60K17/046 , B60K2001/006 , B60K2007/0038 , B60K2007/0092 , B60L2220/44 , B60Y2306/03 , F16C19/06 , F16C19/186 , F16C35/063 , F16C2326/02 , F16H1/32 , H02K1/22 , H02K1/28 , H02K7/003 , H02K7/08 , H02K7/116 , H02K15/00 , H02K15/14 , Y02T10/641
摘要： An in-wheel motor drive device includes: a motor part; a speed reduction part; a wheel bearing part; and a casing, the motor part including: a stator, which is fixed to the casing; a rotation shaft of a motor, which is rotatably supported on the casing through intermediation of a plurality of rolling bearings; and a rotor, which is mounted to the rotation shaft of the motor, the rotation shaft of the motor being configured to rotationally drive an input shaft of a speed reducer, the speed reduction part being configured to reduce a speed of rotation of the input shaft of the speed reducer to transmit the rotation to an output shaft of the speed reducer, the wheel bearing part being connected to the output shaft of the speed reducer, the rotation shaft of the motor being made of case hardening steel and subjected to carburizing, quenching, and tempering.
摘要翻译：一种电动机驱动装置，包括：电动机部; 减速部件; 车轮轴承部件; 和壳体，所述电动机部件包括：固定在所述壳体上的定子; 电动机的旋转轴，其通过多个滚动轴承通过可旋转地支撑在壳体上; 以及转子，其安装在所述电动机的旋转轴上，所述电动机的旋转轴构造成旋转地驱动减速器的输入轴，所述减速部被构造为降低所述输入轴的旋转速度的减速器将旋转传递到减速器的输出轴，车轮轴承部分连接到减速器的输出轴，电机的旋转轴由外壳硬化钢制成，并进行渗碳淬火，回火。

5. 发明申请

US20160332521A1 IN-WHEEL MOTOR DRIVE DEVICE 有权
标题翻译：内轮电机驱动装置
公开(公告)号：US20160332521A1
公开(公告)日：2016-11-17
申请号：US15220019
申请日：2016-07-26
申请人： NTN CORPORATION
发明人： Kenichi SUZUKI
IPC分类号： B60L3/00 , B60K17/04 , H02P29/64 , B60L15/00 , H02P29/68 , B60K7/00 , B60L11/18
CPC分类号： B60L3/0061 , B60K7/0007 , B60K17/043 , B60K17/046 , B60K2007/0038 , B60K2007/0092 , B60L3/04 , B60L11/1803 , B60L15/00 , B60L15/025 , B60L15/2054 , B60L2220/14 , B60L2220/44 , B60L2240/36 , B60L2240/421 , B60L2240/423 , B60L2240/425 , B60L2240/486 , B60L2240/507 , B60L2250/16 , H02K5/15 , H02K5/1732 , H02K7/116 , H02K9/19 , H02K11/25 , H02K17/12 , H02P29/64 , H02P29/68 , Y02T10/641 , Y02T10/643 , Y02T10/7005 , Y02T10/7275
摘要： Provided is an in-wheel motor drive device which detects an abnormality with high precision over the entire operation range of a motor by measuring the temperatures of a lubricating oil and a motor coil. The in-wheel motor drive device includes an electric motor (1), a wheel bearing (5), a speed reducer (2), a lubricating oil supply mechanism (Jk), and a controller (U1). An oil temperature sensor (Sb) is disposed in a lubricating oil passage (29) in the speed reducer (2), and a coil temperature sensor (Sa) is disposed on a motor stator. The controller (U1) includes a motor output limit (95) that limits an electric current in the electric motor (1) when at least one of temperatures measured by the oil temperature sensor (Sb) and by the coil temperature sensor (Sa) has exceeded a corresponding predefined threshold.
摘要翻译：提供一种轮电机驱动装置，其通过测量润滑油和电动机线圈的温度，在马达的整个运行范围内以高精度检测异常。轮电机驱动装置包括电动机（1），车轮轴承（5），减速器（2），润滑油供给机构（Jk）和控制器（U1）。油温传感器（Sb）设置在减速机（2）的润滑油路（29）中，线圈温度传感器（Sa）配置在电动机定子上。控制器（U1）包括当由油温传感器（Sb）和线圈温度传感器（Sa）测量的温度中的至少一个具有限制电动机（1）中的电流的电动机输出限制（95）超过相应的预定阈值。

6. 发明申请

US20160233738A1 IN-WHEEL MOTOR AND IN-WHEEL MOTOR DRIVING DEVICE 有权
标题翻译：车轮电机和车轮电机驱动装置
公开(公告)号：US20160233738A1
公开(公告)日：2016-08-11
申请号：US15132848
申请日：2016-04-19
申请人： NTN CORPORATION
发明人： Yusuke MAKINO , Kenichi SUZUKI
IPC分类号： H02K7/14 , H02K9/19 , H02K1/27 , H02K7/116 , H02K11/225
CPC分类号： H02K7/14 , B60K7/0007 , B60K17/046 , B60K2007/0038 , B60K2007/0092 , B60Y2306/03 , H02K1/27 , H02K1/28 , H02K7/006 , H02K7/116 , H02K9/19 , H02K11/225 , Y02T10/641
摘要： An electric motor which is an in-wheel motor includes a motor housing, a motor stator, a rotation shaft, a motor rotor, and a rotational sensor. The rotation shaft has: a shaft portion rotatably supported by a plurality of bearings; a flange portion spreading toward the outer diameter side from the outer circumference of the shaft portion; and a cylindrical portion extending from the outer diameter end of the flange portion in parallel with the shaft portion, and having an outer circumference to which the motor rotor is fitted. The axial position of the rotational sensor is between the plurality of bearings, and the rotational sensor is provided on the inner diameter side of the cylindrical portion of the rotation shaft.
摘要翻译：作为轮内电动机的电动机包括电动机壳体，电动机定子，旋转轴，电动机转子和旋转传感器。旋转轴具有：由多个轴承可旋转地支撑的轴部; 从所述轴部的外周向外径侧扩展的凸缘部; 以及从所述凸缘部的外径端与所述轴部平行地延伸的圆筒部，并且具有安装所述电动机转子的外周。旋转传感器的轴向位置在多个轴承之间，旋转传感器设置在旋转轴的圆筒部的内径侧。

7. 发明申请

US20180109222A1 MOTOR DRIVE DEVICE 审中-公开
公开(公告)号：US20180109222A1
公开(公告)日：2018-04-19
申请号：US15843554
申请日：2017-12-15
申请人： NTN CORPORATION
发明人： Kenichi SUZUKI
IPC分类号： H02P29/60 , H02K7/116 , H02K11/25
CPC分类号： H02P29/60 , B60K6/365 , B60L11/00 , H02K7/116 , H02K11/25 , H02P29/032 , H02P29/64 , H02P29/68
摘要： A lubricating oil temperature sensor to detect a temperature of a lubricating oil is provided in a lubricating oil passage in a speed reducer, a coil temperature sensor to detect a temperature of a motor coil is provided in a stator of an electric motor, and a rotation speed detection sensor to detect a rotation speed of the electric motor is provided. A control device includes: an abnormality detector to detect an abnormality in the lubricating oil temperature sensor; and a lubricating oil temperature estimator to estimate the temperature of the lubricating oil on the basis of a determined relationship using the temperature detected by the coil temperature sensor and the rotation speed detected by the rotation speed detection sensor, when the abnormality detector detects the abnormality in the lubricating oil temperature sensor.

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