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 (JP)
Application Number:
PCT/JP2011/001999
Publication Date:
November 03, 2011
Filing Date:
April 04, 2011
Export Citation:
Assignee:
TOYO ELECTRIC MFG CO LTD (JP)
NAKAMURA MASANORI (JP)
NAKAMURA MASANORI (JP)
International Classes:
B60L9/18; H02P5/46; H02P5/50; H02P5/54
Foreign References:
| JPH1118209A | 1999-01-22 | |||
| JPH0223097A | 1990-01-25 | |||
| JPH1066204A | 1998-03-06 | |||
| JPS60113603A | 1985-06-20 | |||
| JPH04251502A | 1992-09-07 |
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
Kenji Sugimura (JP)
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Claims:
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