Title:
CONVERTER OVERCURRENT PREVENTION/CONTROL DEVICE AND CONVERTER OVERCURRENT PREVENTION METHOD
Document Type and Number:
WIPO Patent Application WO/2010/134179
Kind Code:
A1
Abstract:
A peak value (ILpeak) of current (IL) flowing into a boost converter is estimated (P2) according to the inclination of the current (IL) flowing into the boost converter and the remaining ON time of a switching element (Q2) at the moment (T1) when the current (IL) is detected. If the estimated peak value (ILpeak) exceeds a permitted value (ILmax), the duty ratio of the switching elements (Q1, Q2) is modified so that the peak value (ILpeak) is lowered to the permitted value (ILmax) or below.
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Inventors:
NOBE DAIGO (JP)
TAKAMATSU NAOYOSHI (JP)
OKAMURA MASAKI (JP)
TAKAMATSU NAOYOSHI (JP)
OKAMURA MASAKI (JP)
Application Number:
PCT/JP2009/059321
Publication Date:
November 25, 2010
Filing Date:
May 21, 2009
Export Citation:
Assignee:
TOYOTA MOTOR CO LTD (JP)
NOBE DAIGO (JP)
TAKAMATSU NAOYOSHI (JP)
OKAMURA MASAKI (JP)
NOBE DAIGO (JP)
TAKAMATSU NAOYOSHI (JP)
OKAMURA MASAKI (JP)
International Classes:
H02M3/135
Foreign References:
| JP2006074965A | 2006-03-16 | |||
| JP2009077523A | 2009-04-09 | |||
| JP2008187773A | 2008-08-14 | |||
| JPS59175393A | 1984-10-04 | |||
| JPH11275869A | 1999-10-08 | |||
| JP2008104244A | 2008-05-01 | |||
| JP2004096824A | 2004-03-25 |
Attorney, Agent or Firm:
FUKAMI, Hisao et al. (JP)
Hisao Fukami (JP)
Hisao Fukami (JP)
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Claims: