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Patent Searching and Data


Title:
MOTOR DRIVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2008/114853
Kind Code:
A1
Abstract:
A motor (10) includes a field pole formed by applying a field current to a field winding (50). A boost converter (120) voltage-converts the output voltage of a battery (B) and outputs it to a section between a power supply line (107) and a grounding line (105). The field winding (50) is electrically connected to a current path between the battery (B) and the power supply line (107) and configured so that a voltage switched by a switching element (Q1) is applied to both ends of it. A control device (100) switches/controls the switching element (Q1) and a switching element (Q3) which is connected in parallel to the field winding (50), so as to control the field current to adjust a magnetic flux density between a rotor and a stator and convert the output voltage of the battery (B) into a voltage based on the voltage instruction value.

Inventors:
TATEMATSU KAZUTAKA (JP)
MIZUTANI RYOJI (JP)
YAMADA EIJI (JP)
MATSUI NOBUYUKI (JP)
KOSAKA TAKASHI (JP)
Application Number:
PCT/JP2008/055195
Publication Date:
September 25, 2008
Filing Date:
March 14, 2008
Export Citation:
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Assignee:
TOYOTA MOTOR CO LTD (JP)
NAT UNIV CORP NAGOYA INST TECH (JP)
TATEMATSU KAZUTAKA (JP)
MIZUTANI RYOJI (JP)
YAMADA EIJI (JP)
MATSUI NOBUYUKI (JP)
KOSAKA TAKASHI (JP)
International Classes:
H02P27/06; B60L9/18; H02K21/14; H02P21/22; H02P27/08
Foreign References:
JPH08223706A1996-08-30
JPH05260796A1993-10-08
JPH0879912A1996-03-22
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (Nakanoshima Central Tower 22nd Floor,2-7, Nakanoshima 2-chome, Kita-k, Osaka-shi Osaka 05, JP)
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