Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
MOTOR CONTROLLER
Document Type and Number:
WIPO Patent Application WO/2001/080416
Kind Code:
A1
Abstract:
A motor controller for correcting offset of the drive current of a motor comprising an offset calculating section (14) for calculating the offset amount (Iuofs, Ivofs, Iwofs) of the drive current (Iu, Iv, Iw) when a motor is driven, and a drive signal correcting section (18) for correcting offset of the drive current (Iu, Iv, Iw) by correcting the duty ratio of drive signal (Suo, Svo, Swo) based on the offset amount (Iuofs, Ivofs, Iwofs).

Inventors:
Sato, Eiji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA 1 (Toyota-cho Toyota-shi, Aichi, 471-8571, JP)
Ohtani, Hiroki c/o KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 41-1 (Aza Yokomichi Oaza Nagakut, Nagakute-cho Aichi-gun Aichi, 480-1192, JP)
Application Number:
PCT/JP2001/003326
Publication Date:
October 25, 2001
Filing Date:
April 18, 2001
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyota-cho Toyota-shi, Aichi, Aichi, 471-8571, JP)
KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO (41-1, Aza Yokomichi Oaza Nagakut, Nagakute-cho Aichi-gun Aichi, 480-1192, JP)
Sato, Eiji c/o TOYOTA JIDOSHA KABUSHIKI KAISHA 1 (Toyota-cho Toyota-shi, Aichi, 471-8571, JP)
Ohtani, Hiroki c/o KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO 41-1 (Aza Yokomichi Oaza Nagakut, Nagakute-cho Aichi-gun Aichi, 480-1192, JP)
International Classes:
H02M7/48; H02P6/06; H02P6/08; H02P6/10; H02P6/12; H02P21/05; H02P21/22; H02P23/04; H02P27/06; H02P27/08; (IPC1-7): H02P7/63
Foreign References:
JP2000078887A2000-03-14
JPH08149882A1996-06-07
JPH05328733A1993-12-10
JPH01270791A1989-10-30
JPH07170799A1995-07-04
JPS6321865U1988-02-13
JPH08149882A1996-06-07
JPH08119132A1996-05-14
Other References:
See also references of EP 1283594A4
Attorney, Agent or Firm:
Yoshida, Kenji (34-12, Kichijoji-honcho 1-chome Musashino-shi, Tokyo, 180-0004, JP)
Download PDF: