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Patent Searching and Data


Title:
モータ駆動システム
Document Type and Number:
Japanese Patent JP4506344
Kind Code:
B2
Abstract:

To provide a motor drive system which can maximize the efficiency of the whole system from a generator to a motor.

The motor drive system records a torque map showing the drive torque of the motor 5 and the relation between the dc voltage and the dc current of an inverter 4 and a generator efficiency map showing the efficiency of the generator 2 and the relation between the dc voltage and the dc current, selects the torque map on the basis of the drive torque of the motor 5, selects the generator efficiency map on the basis of the number of rotations of the generator 2, and drives the motor 5 by obtaining the d-axis current and the q-axis current of the motor so that the total efficiency of the efficiency of the whole system may become the maximum.

COPYRIGHT: (C)2006,JPO&NCIPI


Inventors:
Hidehiko Sugita
Yasuo Matsunaga
Application Number:
JP2004232101A
Publication Date:
July 21, 2010
Filing Date:
August 09, 2004
Export Citation:
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Assignee:
Nissan Motor Co., Ltd
International Classes:
B60L50/16; B60K6/46; B60W10/08; B60W20/00
Domestic Patent References:
JP2000166009A
JP8151941A
JP2002235575A
JP2003204603A
Attorney, Agent or Firm:
Hidekazu Miyoshi
Iwa Saki Kokuni
Kawamata Sumio
Masakazu Ito
Shunichi Takahashi
Toshio Takamatsu