Title:
ELECTRIC VEHICLE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2011/135777
Kind Code:
A1
Abstract:
Synchronous electric motor field excitation by a direct current or an alternating current enables a single main VVVF inverter to operate a plurality of synchronous electric motors having different numbers of rotations.
The coils of the rotor (32) of a synchronous electric motor (30) are formed as two-phase coils. When the rotation speed of the rotor (32) is different from a synchronous speed, an excitation inverter (36) calculates necessary current and phase from the current values of a rotor position detector (35) and of each phase, applies an AC voltage corresponding to a slip frequency to the coils of the rotor, and drives each of the motors to generate a desired torque or output.
Inventors:
NAKAMURA, Masanori (Yokohama Factory, 3-8, Fukuura, Kanazawa-ku, Yokohama-sh, Kanagawa 04, 〒2360004, JP)
Application Number:
JP2011/001999
Publication Date:
November 03, 2011
Filing Date:
April 04, 2011
Export Citation:
Assignee:
TOYO ELECTRIC MFG. CO.,LTD. (9-2 Kyobashi 2-chome, Chuo-ku Tokyo, 31, 〒1040031, JP)
東洋電機製造株式会社 (〒31 東京都中央区京橋二丁目９番２号 Tokyo, 〒1040031, JP)
東洋電機製造株式会社 (〒31 東京都中央区京橋二丁目９番２号 Tokyo, 〒1040031, JP)
International Classes:
B60L9/18; H02P5/46; H02P5/50
Attorney, Agent or Firm:
SUGIMURA, Kenji (36F Kasumigaseki Common Gate West, 3-2-1 Kasumigaseki, Chiyoda-k, Tokyo 13, 〒1000013, JP)
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Claims:
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