Title:
ACCUMULATOR STATE DETECTION DEVICE
Document Type and Number:
WIPO Patent Application WO/2007/029673
Kind Code:
A1
Abstract:
An accumulator state detection device includes: a capacitor block formed by
a capacitor voltage equalization circuit and a capacitor voltage detection
circuit connected to each of capacitors; and a capacitor block state output circuit
for outputting a capacitor state from a signal of the capacitor voltage detection
circuit. The signal of the capacitor voltage detection circuit is transmitted
to the capacitor block state output circuit by an optical switch as an electric
indirect connection device. Accordingly, a high-voltage system wiring is completely
separated from a signal system wiring and it is possible to obtain a high reliability.
Inventors:
KAKIUCHI KIMIYASU
MITANI YOHSUKE
MITANI YOHSUKE
Application Number:
PCT/JP2006/317501
Publication Date:
March 15, 2007
Filing Date:
September 05, 2006
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD (JP)
KAKIUCHI KIMIYASU
MITANI YOHSUKE
KAKIUCHI KIMIYASU
MITANI YOHSUKE
International Classes:
B60L11/18; G01R31/00; H01G13/00; H02J7/00; H02J7/02
Foreign References:
| JP2002084669A | 2002-03-22 | |||
| JP2003110300A | 2003-04-11 | |||
| JPH0278964A | 1990-03-19 | |||
| JP2000065906A | 2000-03-03 | |||
| JP2005110439A | 2005-04-21 | |||
| JP2003070179A | 2003-03-07 | |||
| JP2005028908A | 2005-02-03 | |||
| JP2002281686A | 2002-09-27 | |||
| JPH08339829A | 1996-12-24 |
Attorney, Agent or Firm:
IWAHASHI, Fumio et al. (1006, Oaza Kadom, Kadoma-shi Osaka 01, JP)
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