Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Transmission control
Reexamination Certificate
2005-07-11
2011-12-06
To, Tuan C. (Department: 3663)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Transmission control
C318S109000, C318S144000, C318S152000, C318S400020
Reexamination Certificate
active
08073600
ABSTRACT:
A controller of a field winding type synchronous motor is provided that can stably output torque even if the d-axis current pulsates by reducing torque pulsation without causing fluctuation in the magnetic flux acting on the torque. A motor control unit100performs control so that a desired torque can be generated from a field winding type motor20having a field winding22fon the rotor. Based on a current Id flowing in the d-axis direction out of the current flowing in a stator winding22aof the field winding type motor20, the motor control unit100calculates an induced voltage Vf2being induced in the field winding22fand compensates a field voltage Vf of the field winding based on the induced voltage Vf2, thus suppressing pulsation of the field current flowing in the field winding of the field winding type motor20.
REFERENCES:
patent: 2003/0020428 (2003-01-01), Masaki et al.
patent: 2003/0020429 (2003-01-01), Masaki et al.
patent: 2004/0200654 (2004-10-01), Hatsuda et al.
patent: 2004/0211613 (2004-10-01), Asao et al.
patent: 2005/0029890 (2005-02-01), Kadoya et al.
patent: 2005/0035676 (2005-02-01), Rahman et al.
patent: 2005/0093494 (2005-05-01), Nagayama
patent: 2005/0156543 (2005-07-01), Kitamura et al.
patent: 2005/0160771 (2005-07-01), Hosoito et al.
patent: 2006/0017344 (2006-01-01), Tajima et al.
patent: 2006/0017419 (2006-01-01), Tajima et al.
patent: 2006/0097702 (2006-05-01), Nagashima et al.
patent: 2006/0119297 (2006-06-01), Okamura et al.
patent: 2007/0035270 (2007-02-01), Kitamura et al.
patent: 61-18386 (1986-01-01), None
patent: 63-133886 (1988-06-01), None
patent: 6-237592 (1994-08-01), None
patent: 2000-197398 (2000-07-01), None
patent: 3331734 (2002-07-01), None
patent: 2004-201452 (2004-07-01), None
patent: 2005-143157 (2005-06-01), None
Japanese Search Report dated Oct. 18, 2005 with English translation of relevant portion (Four (4) Pages).
Japanese Office Action dated Jul. 27, 2010 (Three (3) pages).
Form PCT/IB/338, PCT/IB/373, and Form PCT/ISA/237 (Five (5) Pages).
Akaishi Shigeru
Kaneko Satoru
Katsuhama Kenta
Motegi Kazuya
Yamamoto Tatsuyuki
Crowell & Moring LLP
Hitachi , Ltd.
To Tuan C.
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