ROTATING ELECTRIC MACHINE AND ELECTRIC AUTOMOBILE - Hitachi Automotive Systems, LTD.

Title:

ROTATING ELECTRIC MACHINE AND ELECTRIC AUTOMOBILE

Document Type and Number:

WIPO Patent Application WO/2010/044426

Kind Code:

A1

Abstract:

Disclosed is a rotating electric machine which is provided with a stator having a stator winding, and a rotor which is provided so as to be able to rotate about a specific axis of rotation with respect to the stator. The rotor has a plurality of magnets, a plurality of magnetically-assisted salient pole members formed between the poles of adjacent magnets, and a magnetoresistance variation unit provided in a magnetically-assisted salient pole member along the axial direction of the axis of rotation at a position offset in the circumferential direction of the axis of rotation from the q axis passing through the center of the salient pole. The amount of offset from the q axis of the magnetoresistance variation unit varies depending on the positions of the magnetically-assisted salient pole members so that the torque fluctuations cancel each other when power is applied.

Inventors:

SAITO, Yasuyuki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
齋藤　泰行 (〒03 茨城県ひたちなか市高場２５２０番地　日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
GOTO, Tsuyoshi (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
後藤　剛志 (〒03 茨城県ひたちなか市高場２５２０番地　日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
NAKAYAMA, Kenichi (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)

Application Number:

JP2009/067795

Publication Date:

April 22, 2010

Filing Date:

October 14, 2009

Export Citation:

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Assignee:

Hitachi Automotive Systems, LTD. (2520, Takaba Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
日立オートモティブシステムズ株式会社 (〒03 茨城県ひたちなか市高場２５２０番地 Ibaraki, 〒3128503, JP)
SAITO, Yasuyuki (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
齋藤　泰行 (〒03 茨城県ひたちなか市高場２５２０番地　日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)
GOTO, Tsuyoshi (Ltd. 2520 Takaba, Hitachinaka-sh, Ibaraki 03, 〒3128503, JP)
後藤　剛志 (〒03 茨城県ひたちなか市高場２５２０番地　日立オートモティブシステムズ株式会社内 Ibaraki, 〒3128503, JP)

International Classes:

H02K1/22; B60L11/14; B60W10/08; B60W20/00; H02K1/27; H02P21/00; H02P27/04; H02P27/06; B60K6/445; B60K6/54

Attorney, Agent or Firm:

NAGAI, Fuyuki (Tokyo Sakurada Building, 1-1-3 Nishishinbashi, Minato-k, Tokyo 03, 〒1050003, JP)

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