公开(公告)号：US10207572B2

公开(公告)日：2019-02-19

申请号：US15568021

申请日：2016-04-18

Applicant: NTN CORPORATION

Inventor： Tomoaki Makino ,  Ryou Yukishima ,  Hidenori Karasawa ,  Isao Hirai

IPC: B60K1/02 ,  F16H1/08 ,  F16H57/023 ,  H02K7/116 ,  B60L15/20 ,  F16H55/14 ,  F16H57/02 ,  F16H57/028 ,  B60K7/00 ,  H02K5/173

Abstract: Helical gears in gear trains of speed reducers generate thrust forces in directions not to separate a speed reducer casing which has an axial three-piece structure, whereby leakage of lubricant oil from between separated surfaces in the speed reducer casing is prevented. Output gear which generates large thrust force on the final stage in each gear train of the speed reducers both generated inward forces, so that the center casing does not receive forces in directions in which the left and the right casings is separated therefrom.

公开(公告)号：US20150027795A1

公开(公告)日：2015-01-29

申请号：US14379523

申请日：2013-01-24

Applicant: NTN CORPORATION

Inventor： Isao Hirai ,  Tetsuya Yamamoto ,  Wataru Yamada

IPC: B60K1/00 ,  B62D21/11 ,  B60K1/04 ,  B60K26/02 ,  B60G13/00 ,  B60T7/02

CPC classification number: B60K1/00 ,  B60G3/00 ,  B60G13/003 ,  B60K1/04 ,  B60K7/0007 ,  B60K17/356 ,  B60K26/02 ,  B60K2001/001 ,  B60K2001/0411 ,  B60K2007/0046 ,  B60K2007/0061 ,  B60L11/1803 ,  B60L11/1868 ,  B60L15/2036 ,  B60L2220/44 ,  B60L2240/12 ,  B60L2240/24 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/461 ,  B60L2250/26 ,  B60L2270/145 ,  B60T7/02 ,  B60T8/17 ,  B60T2260/06 ,  B62D21/11 ,  B62D63/025 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/72 ,  Y02T10/7275

Abstract: An electric vehicle includes: a body that includes a body frame; a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driving force to the driving wheels to start or accelerate the electric vehicle, a driving-wheel suspension device attached to the sub-frame, a driving-wheel brake device stopping or decelerating the electric vehicle, and some other components; a connection unit that maintains the relative position relationship between the body and driving module upon attachment of the sub-frame to the body frame and connects the body to the driving module with signal lines; and a control unit that controls the driving module under an input signal input from the body side through the signal lines connected with the connection unit.

Abstract translation: 电动车辆包括：主体，其包括车身框架; 驱动模块，其包括可从主体框架拆卸的副框架，驱动轮，设置有安装在子框架上的马达的驱动装置，并向驱动轮施加驱动力以启动或加速电动车辆; 附接到子框架的车轮悬挂装置，使电动车辆停止或减速的驱动轮制动装置等一些部件; 连接单元，其在子框架附接到主体框架时保持主体和驱动模块之间的相对位置关系，并且用信号线将主体与驱动模块连接; 以及控制单元，其通过与连接单元连接的信号线，在从主体侧输入的输入信号的下方控制驱动模块。

公开(公告)号：US11155161B2

公开(公告)日：2021-10-26

申请号：US15565787

申请日：2016-04-14

Applicant: NTN CORPORATION

Inventor： Tomoaki Makino ,  Isao Hirai ,  Yusuke Shibuya

IPC: B60K17/14 ,  F16H1/20 ,  F16H57/021 ,  F16H1/06 ,  F16H57/04 ,  B60K1/00 ,  B60K17/04 ,  B60K7/00 ,  F16H57/02

Abstract: An automobile-motor driving device equipped with speed reducer which has improved supply of lubrication oil to inside of the rolling bearings without sacrificing the function of the bearings, to reduce deformation in the rolling bearing outer ring. A parallel shaft gear speed reducer provides an automobile-motor driving device equipped with speed reducer. The parallel shaft gear speed reducer includes a plurality of gear shafts having two ends supported via rolling bearings fitted into bearing fitting holes in a speed reducer casing which houses the parallel shaft gear speed reducer. A groove in an inner circumferential surface of the bearing fitting hole into which the rolling bearing is fitted communicates between a space that houses the speed reducer and an inside space of the bearing fitting hole, at a location not crossed by the line of action of a load acting upon the rolling bearing due to the meshing of the gears.

公开(公告)号：US09168818B2

公开(公告)日：2015-10-27

申请号：US14379523

申请日：2013-01-24

Applicant: NTN CORPORATION

Inventor： Isao Hirai ,  Tetsuya Yamamoto ,  Wataru Yamada

IPC: B60K7/00 ,  B60K1/00 ,  B60G3/00 ,  B60T8/17 ,  B60K17/356 ,  B62D21/11 ,  B60G13/00 ,  B60K1/04 ,  B60K26/02 ,  B60T7/02

CPC classification number: B60K1/00 ,  B60G3/00 ,  B60G13/003 ,  B60K1/04 ,  B60K7/0007 ,  B60K17/356 ,  B60K26/02 ,  B60K2001/001 ,  B60K2001/0411 ,  B60K2007/0046 ,  B60K2007/0061 ,  B60L11/1803 ,  B60L11/1868 ,  B60L15/2036 ,  B60L2220/44 ,  B60L2240/12 ,  B60L2240/24 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/461 ,  B60L2250/26 ,  B60L2270/145 ,  B60T7/02 ,  B60T8/17 ,  B60T2260/06 ,  B62D21/11 ,  B62D63/025 ,  Y02T10/645 ,  Y02T10/7005 ,  Y02T10/7066 ,  Y02T10/72 ,  Y02T10/7275

Abstract: An electric vehicle includes: a body that includes a body frame; a driving module that includes a sub-frame detachable from the body frame, driving wheels, a driving device provided with a motor mounted on the sub-frame and applying driving force to the driving wheels to start or accelerate the electric vehicle, a driving-wheel suspension device attached to the sub-frame, a driving-wheel brake device stopping or decelerating the electric vehicle, and some other components; a connection unit that maintains the relative position relationship between the body and driving module upon attachment of the sub-frame to the body frame and connects the body to the driving module with signal lines; and a control unit that controls the driving module under an input signal input from the body side through the signal lines connected with the connection unit.

Abstract translation: 电动车辆包括：主体，其包括车身框架; 驱动模块，其包括可从主体框架拆卸的副框架，驱动轮，设置有安装在子框架上的马达的驱动装置，并向驱动轮施加驱动力以启动或加速电动车辆; 附接到子框架的车轮悬挂装置，使电动车辆停止或减速的驱动轮制动装置等一些部件; 连接单元，其在子框架附接到主体框架时保持主体和驱动模块之间的相对位置关系，并且用信号线将主体与驱动模块连接; 以及控制单元，其通过与连接单元连接的信号线，在从主体侧输入的输入信号的下方控制驱动模块。