公开(公告)号：US09812913B2

公开(公告)日：2017-11-07

申请号：US15046813

申请日：2016-02-18

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yasuyuki Saito ,  Tsuyoshi Goto ,  Kenichi Nakayama ,  Noriaki Hino ,  Shinji Sugimoto

IPC: H02K1/27 ,  B60L11/14 ,  B60L15/02 ,  H02P27/06 ,  H02K7/00 ,  B60L11/12 ,  B60L15/20 ,  H02K1/24 ,  B60K1/02 ,  B60K6/26 ,  B60K6/445 ,  H02K29/03 ,  B60L15/00

CPC classification number: H02K1/276 ,  B60K1/02 ,  B60K6/26 ,  B60K6/445 ,  B60L11/123 ,  B60L11/14 ,  B60L15/007 ,  B60L15/025 ,  B60L15/20 ,  B60L2210/10 ,  B60L2210/40 ,  B60L2220/14 ,  B60L2240/421 ,  B60L2240/423 ,  B60L2240/429 ,  B60L2240/443 ,  B60L2240/547 ,  B60L2240/549 ,  B60L2270/142 ,  B60L2270/145 ,  H02K1/24 ,  H02K1/2766 ,  H02K7/006 ,  H02K29/03 ,  H02K2201/06 ,  H02P27/06 ,  Y02T10/6217 ,  Y02T10/6239 ,  Y02T10/641 ,  Y02T10/643 ,  Y02T10/7077 ,  Y02T10/7216 ,  Y02T10/7241 ,  Y02T10/7275

Abstract: A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied.

公开(公告)号：US10177615B2

公开(公告)日：2019-01-08

申请号：US15730129

申请日：2017-10-11

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yasuyuki Saito ,  Tsuyoshi Goto ,  Kenichi Nakayama ,  Noriaki Hino ,  Shinji Sugimoto

IPC: H02K1/27 ,  B60L11/14 ,  B60L15/02 ,  H02P27/06 ,  H02K7/00 ,  B60L11/12 ,  B60L15/20 ,  H02K1/24 ,  B60K1/02 ,  B60K6/26 ,  B60K6/445 ,  H02K29/03 ,  B60L15/00

Abstract: A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied.

公开(公告)号：US10547222B2

公开(公告)日：2020-01-28

申请号：US16213462

申请日：2018-12-07

Applicant: Hitachi Automotive Systems, Ltd.

Inventor： Yasuyuki Saito ,  Tsuyoshi Goto ,  Kenichi Nakayama ,  Noriaki Hino ,  Shinji Sugimoto

IPC: H02K1/27 ,  B60L15/02 ,  H02K7/00 ,  B60L15/20 ,  H02K1/24 ,  B60K1/02 ,  B60K6/26 ,  B60K6/445 ,  H02K29/03 ,  B60L15/00

Abstract: A rotating electric machine includes a stator having a stator coil and a rotor provided rotatably around a specific rotation axis with respect to the stator. The rotor includes a plurality of magnets, a plurality of magnetically-assisted salient pole members provided between poles of any adjacent two magnets from among the plurality of magnets, and a magnetoresistance variation unit provided in the magnetically-assisted salient pole member along an axial direction of the rotation axis at a position offset in a circumferential direction of the rotation axis from a q-axis passing through a salient pole center of the magnetically-assisted salient pole member. The amount of offset of the magnetoresistance variation unit from the q-axis varies depending on positions of the magnetically-assisted salient pole members so that torque fluctuations cancel each other when power is applied.