公开(公告)号：US20160134212A1

公开(公告)日：2016-05-12

申请号：US14899051

申请日：2013-12-13

申请人： NSK LTD.

发明人： Yusuke Kikuchi ,  Atsushi Horikoshi ,  Satoshi Ozaki ,  Yoshihiro Aosaki ,  Takeshi Senba ,  Hisayoshi Koiwai ,  Shigeo Shinohara ,  Kenji Mori ,  Masahiro Okutani ,  Takaaki Sekine

IPC分类号： H02P6/12 ,  H02P6/14

CPC分类号： H02P6/12 ,  B62D5/0484 ,  B62D5/0487 ,  H02H7/0844 ,  H02H7/1225 ,  H02M7/53871 ,  H02M2001/325 ,  H02P6/085 ,  H02P6/14 ,  H02P21/22 ,  H02P27/06 ,  H02P29/032

摘要： A motor control apparatus includes a motor current shutoff unit inserted between a multi-phase inverter circuit and a multi-phase electric motor to shut off a current for each of plural phases, the inverter circuit including an arm for each of the plural phases, a redundant arm unit including one or more arms, a connection selecting unit selecting which one of windings of the electric motor is to be connected to each of the one or more arms of the redundant arm unit, an abnormal arm detection unit detecting an abnormality in each of the plural phases of the inverter circuit, and an abnormality control unit shutting off connection between an abnormal arm and the motor when the abnormal arm detection unit detects the abnormal arm, and connecting the one or more arms of the redundant arm unit to a winding of the motor shut off.

摘要翻译： 电动机控制装置包括插入在多相逆变器电路和多相电动机之间的电动机电流切断装置，以切断多相的电流，所述逆变器电路包括用于各相的臂，a 包括一个或多个臂的冗余臂单元，连接选择单元，其选择要连接到所述冗余臂单元的所述一个或多个臂中的每一个的所述电动机的绕组中的哪一个;检测每个所述异常的异常臂检测单元 以及异常控制单元，当异常臂检测单元检测到异常臂时，断开异常臂与电机之间的连接，并将冗余臂单元的一个或多个臂连接到绕组 的电机关闭。

公开(公告)号：US09771099B2

公开(公告)日：2017-09-26

申请号：US15115001

申请日：2015-02-26

申请人： NSK Ltd.

发明人： Kenji Mori ,  Takeshi Senba ,  Shigeo Shinohara

IPC分类号： H02H5/00 ,  B62D5/04 ,  H02P29/032 ,  H02P29/028

CPC分类号： B62D5/0484 ,  B62D5/0487 ,  H02P29/028 ,  H02P29/032

摘要： A motor controller includes: a main motor drive circuit configured to control driving of a multi-phase electric motor; a backup motor drive circuit configured to control driving of the multi-phase electric motor, when an abnormality occurs at the main motor drive circuit; and an abnormality diagnosis unit configured to diagnose the abnormality of the main and backup motor drive circuits. In a normal drive state, only the main motor drive circuit is configured to drive the multi-phase electric motor, and in a backup drive state, when the abnormality diagnosis unit diagnoses that the abnormality occurs at the main motor drive circuit as a diagnoses result, a motor current of a phase output unit where the abnormality occurs is cut off, and the phase output unit that has been cut off is replaced with another phase output unit of a same phase in the backup motor drive circuit.

公开(公告)号：US20150069746A1

公开(公告)日：2015-03-12

申请号：US14397684

申请日：2014-01-20

申请人： NSK LTD.

发明人： Tasuku Oishi ,  Shigeo Shinohara ,  Tetsuo Arakawa

IPC分类号： B62D1/19 ,  B62D1/187

CPC分类号： B62D1/195 ,  B62D1/187

摘要： Construction is achieved in which a steering column 4b and a support bracket 17b are able to smoothly displace in the forward direction during a secondary collision. Spring-side locking sections 40 of a bias spring 32a engage with locking tabs 41 of the support bracket 17b in a state so as to press downward on the locking tabs 41. A pressure section 35a of the bias spring 32a engages with a receiving surface of the steering column 4b in a state so as to cause an upward pressure force to act on the steering column 4b. During a secondary collision, when the bias spring 32a displaces in the forward direction during the stroke through which the steering column 4b and support bracket 17b are able to displace in the forward direction and interferes with a gear housing 12 of a steering-assist apparatus 5, the locked state between the spring-side locking sections 40 and the locking tabs 41 is released, which allows the steering column 4b and the support bracket 17b to smoothly displace further in the forward direction.

摘要翻译： 实现了在二次碰撞期间转向柱4b和支撑架17b能够在向前方向上平滑地移位的结构。 偏置弹簧32a的弹簧侧锁定部分40以支撑托架17b的锁定突出部41的形式与锁定突片41向下压的状态相接合。偏置弹簧32a的压力部分35a与 转向柱4b处于使向上的压力作用在转向柱4b上的状态。 在二次碰撞期间，当偏转弹簧32a在行程期间向前移动时，转向柱4b和支撑支架17b能够通过该行程在向前方向上移动并且与转向辅助装置5的齿轮壳体12干涉 弹簧侧锁定部分40和锁定突片41之间的锁定状态被释放，从而允许转向柱4b和支撑托架17b在向前的方向上进一步平稳地移位。

公开(公告)号：US10093352B2

公开(公告)日：2018-10-09

申请号：US14911697

申请日：2013-12-13

申请人： NSK Ltd.

发明人： Kenji Mori ,  Kotaro Tagami ,  Hiroki Sugawara ,  Shigeo Shinohara ,  Takaaki Sekine ,  Takeshi Senba ,  Shuji Endo

IPC分类号： B62D5/04 ,  H02P21/22 ,  H02H7/08 ,  H02P29/032 ,  H02P27/06 ,  G01R31/34 ,  G05B9/02 ,  H02P5/74

摘要： A motor controller, an electric power steering device using the motor controller, and a vehicle using the motor controller are provided. The motor controller includes plural hardware sets configured to operate in a normal state and to output a motor current, a control operation device configured to control the plurality of hardware sets commonly, an electric motor configured to operate with motor current output from each of the plurality of hardware sets, and an abnormality diagnosis unit configured to diagnose an abnormality of each of the plurality of hardware sets. In the control device, when there is an abnormal hardware set that has been diagnosed by the abnormality diagnosis unit, the control operation device stops an operation of the abnormal hardware set that has been diagnosed, and continues driving of the electric motor with a normal hardware set.

公开(公告)号：US09634587B2

公开(公告)日：2017-04-25

申请号：US14899051

申请日：2013-12-13

申请人： NSK LTD.

发明人： Yusuke Kikuchi ,  Atsushi Horikoshi ,  Satoshi Ozaki ,  Yoshihiro Aosaki ,  Takeshi Senba ,  Hisayoshi Koiwai ,  Shigeo Shinohara ,  Kenji Mori ,  Masahiro Okutani ,  Takaaki Sekine

IPC分类号： H02P6/12 ,  B62D5/04 ,  H02P27/06 ,  H02M7/5387 ,  H02H7/122 ,  H02P6/08 ,  H02P6/14 ,  H02P21/22 ,  H02M1/32 ,  H02H7/08

CPC分类号： H02P6/12 ,  B62D5/0484 ,  B62D5/0487 ,  H02H7/0844 ,  H02H7/1225 ,  H02M7/53871 ,  H02M2001/325 ,  H02P6/085 ,  H02P6/14 ,  H02P21/22 ,  H02P27/06 ,  H02P29/032

摘要： A motor control apparatus includes a motor current shutoff unit inserted between a multi-phase inverter circuit and a multi-phase electric motor to shut off a current for each of plural phases, the inverter circuit including an arm for each of the plural phases, a redundant arm unit including one or more arms, a connection selecting unit selecting which one of windings of the electric motor is to be connected to each of the one or more arms of the redundant arm unit, an abnormal arm detection unit detecting an abnormality in each of the plural phases of the inverter circuit, and an abnormality control unit shutting off connection between an abnormal arm and the motor when the abnormal arm detection unit detects the abnormal arm, and connecting the one or more arms of the redundant arm unit to a winding of the motor shut off.

公开(公告)号：US09238476B2

公开(公告)日：2016-01-19

申请号：US14397684

申请日：2014-01-20

申请人： NSK LTD.

发明人： Tasuku Oishi ,  Shigeo Shinohara ,  Tetsuo Arakawa

IPC分类号： B62D1/187 ,  B62D1/19

CPC分类号： B62D1/195 ,  B62D1/187

摘要： Construction is achieved in which a steering column 4b and a support bracket 17b are able to smoothly displace in the forward direction during a secondary collision. Spring-side locking sections 40 of a bias spring 32a engage with locking tabs 41 of the support bracket 17b in a state so as to press downward on the locking tabs 41. A pressure section 35a of the bias spring 32a engages with a receiving surface of the steering column 4b in a state so as to cause an upward pressure force to act on the steering column 4b. During a secondary collision, when the bias spring 32a displaces in the forward direction during the stroke through which the steering column 4b and support bracket 17b are able to displace in the forward direction and interferes with a gear housing 12 of a steering-assist apparatus 5, the locked state between the spring-side locking sections 40 and the locking tabs 41 is released, which allows the steering column 4b and the support bracket 17b to smoothly displace further in the forward direction.

摘要翻译： 实现了在二次碰撞期间转向柱4b和支撑架17b能够在向前方向上平滑地移位的结构。 偏置弹簧32a的弹簧侧锁定部分40以支撑托架17b的锁定突出部41的形式与锁定突片41向下压的状态相接合。偏置弹簧32a的压力部分35a与 转向柱4b处于使向上的压力作用在转向柱4b上的状态。 在二次碰撞期间，当偏转弹簧32a在行程中向前移动时，转向柱4b和支撑支架17b能够通过该行程在向前方向上移动并与操纵辅助装置5的齿轮箱12干涉 弹簧侧锁定部分40和锁定突片41之间的锁定状态被释放，从而允许转向柱4b和支撑托架17b在向前的方向上进一步平稳地移位。