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    Electric vehicle driving device
    11.
    发明授权
    Electric vehicle driving device 有权

    公开(公告)号：US10940751B2

    公开(公告)日：2021-03-09

    申请号：US16480933

    申请日：2018-06-05

    Applicant: Nsk Ltd.

    Inventor： Yasuyuki Matsuda ,  Daisuke Gunji ,  Shin Yamamoto ,  Toshirou Toyoda

    IPC: B60K17/02 ,  B60K7/00 ,  B60K17/04 ,  B60K17/08 ,  F16H3/72 ,  H02K7/00 ,  H02K7/108 ,  H02K7/116 ,  F16D41/00

    Abstract: An electric vehicle driving device includes a first motor, a second motor, a transmission device to which power of at least one of the first motor and the second motor is transmitted, and an output member that rotates with power output from the transmission device. A rotation axis of the first motor, a rotation axis of the second motor, and a rotation axis of the transmission device are arranged in parallel to a rotation axis of the output member. When seen from an axial direction parallel to the rotation axis of the output member, the rotation axis of the first motor is located on one side of a straight line passing through the rotation axis of the output member and the rotation axis of the transmission device and the rotation axis of the second motor is located on the other side of the straight line.

    Suspension operation system and suspension operation terminal
    12.
    发明授权
    Suspension operation system and suspension operation terminal 有权

    公开(公告)号：US10829155B2

    公开(公告)日：2020-11-10

    申请号：US16610317

    申请日：2018-09-28

    Applicant: NSK LTD.

    Inventor： Daisuke Gunji ,  Hiroyasu Kumagai

    IPC: B62D17/00 ,  B60G7/00 ,  B60G3/20

    Abstract: A suspension operation system includes: a suspension that includes a plurality of links supporting a wheel, at least one or more of the links having an actuator increasing or decreasing its length in an axial direction; a control device that supplies a drive signal to the actuator to control operation of the suspension; and a suspension operation terminal that operates the suspension. The suspension operation terminal includes: a detector that detects operation input information to the suspension operation terminal; and a communicator that transmits information about a target posture of the wheel, the information being based on the operation input information, to the control device as an operation command. The control device includes: a first calculator that calculates the length of the actuator on the basis of the operation command; and a drive circuit that produces the drive signal on the basis of information from the first calculator.

    Rotation transmission device
    13.
    发明授权
    Rotation transmission device 有权

    公开(公告)号：US10480635B2

    公开(公告)日：2019-11-19

    申请号：US15436996

    申请日：2017-02-20

    Applicant: NSK LTD.

    Inventor： Yasuyuki Matsuda ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tooru Ueda ,  Tetsu Takehara ,  Tomoharu Saito ,  Hiroyasu Yoshioka ,  Yuka Kaneko

    IPC: G01L3/00 ,  F16H57/00 ,  G01L3/10 ,  F16C33/66 ,  F16C19/36 ,  F16C19/46 ,  F16C33/58 ,  F16F15/121 ,  F16H59/14

    Abstract: A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).

    Vehicle wheel supporting rolling bearing unit
    14.
    发明授权
    Vehicle wheel supporting rolling bearing unit 有权

    公开(公告)号：US10386253B2

    公开(公告)日：2019-08-20

    申请号：US15771313

    申请日：2016-10-27

    Applicant: NSK LTD.

    Inventor： Hiroki Hamada ,  Yasuyuki Matsuda ,  Masafumi Hikida ,  Hiroshi Kawahara ,  Daisuke Gunji

    IPC: F16C41/00 ,  G01L5/00 ,  B60B35/02 ,  F16C19/18 ,  G01P15/18 ,  B60B27/00 ,  F16C19/52

    Abstract: A vehicle wheel supporting rolling bearing unit includes a stationary side bearing ring member, a rotation side bearing ring member, and plural rolling elements. The rotation side bearing ring member is provided with a first acceleration sensor, a second acceleration sensor, and a third acceleration sensor which are fixed on a virtual plane orthogonal to a center axis of the rotation side bearing ring member. The first acceleration sensor and the second acceleration sensor are arranged on a virtual line passing through a rotation center of the rotation side bearing ring member with a same distance from the rotation center while detection directions thereof are directed in a radial direction and are opposite to each other in the radial direction. The third acceleration sensor is arranged such that a detection direction thereof is non-parallel to the detection directions of the first acceleration sensor and the second acceleration sensor.

    ROTATION TRANSMISSION DEVICE
    15.
    发明申请
    ROTATION TRANSMISSION DEVICE 审中-公开
    旋转传动装置

    公开(公告)号：US20160195183A1

    公开(公告)日：2016-07-07

    申请号：US14901063

    申请日：2013-11-08

    Applicant: NSK LTD.

    Inventor： Yasuyuki MATSUDA ,  Daisuke Gunji ,  Masafumi Hikida ,  Kazutaka Tanaka ,  Tooru Ueda ,  Tetsu Takehara ,  Tomoharu Saito ,  Hiroyasu Yoshioka ,  Yuka Kaneko

    IPC: F16H57/00 ,  G01L3/10

    CPC classification number: F16H57/0037 ,  F16C19/364 ,  F16C19/463 ,  F16C33/581 ,  F16C33/6677 ,  F16C2361/65 ,  F16F15/1216 ,  F16H2059/147 ,  G01L3/101 ,  G01L3/104 ,  G01L3/105 ,  G01L3/109

    Abstract: A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).

    Abstract translation: 提供具有高扭矩测量分辨率的旋转传递装置。 旋转传递装置设置有：具有第一和第二旋转轴（13,14）的旋转轴单元（6），该第一和第二旋转轴（13,14）组合成同轴的，并且使得其端部部分能够相对于彼此旋转， 设置在第一和第二旋转轴的内径侧以与其同轴的杆（15）具有连接到第一旋转轴（13）的一个端部，并且另一个端部连接到 第二旋转轴（14）; 固定到第一旋转轴（13）的外周面的第一齿轮（7）; 固定到第二旋转轴（14）的外周表面的第二齿轮（8）; 设置在扭杆（15）的内径侧以与其同轴的联接轴（9），其一端部连接到一个旋转轴（13），并且另一端部从端部 的扭杆（15）在轴向上; 第一编码器，设置并固定在所述联结轴（9）的另一端，以与所述第一旋转轴（13）同轴并具有第一检测部分（39）; 固定在所述第二旋转轴（14）的另一端以便靠近所述第一编码器并具有第二检测部分（40）的第二编码器; 以及传感器单元，其具有面向所述第一和第二检测部分（39,40）的至少一个传感器（42a，42b）。

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