Title:
ASSEMBLED-BATTERY VOLTAGE EQUALIZATION APPARATUS
Document Type and Number:
WIPO Patent Application WO/2012/008448
Kind Code:
A1
Abstract:
An assembled-battery voltage equalization apparatus comprises: equalization switches (SW1-SW3) that are associated with a battery block (BT1-BT3, BT11-BT13) constituting an assembled battery (23, 23a); an equalization control unit (15) and an equalization diagnosing unit (14). The equalization diagnosing unit acquires both an equalization control signal output from the equalization control unit and an equalization detection signal detected at each of the respective connection points (P1-P3) of the equalization switches. The equalization diagnosing unit then compares the equalization control signal with the equalization detection signal, and diagnoses, on the basis of the comparison result, whether the equalization in the battery block has normally been performed. For example, if the equalization detection signal matches the equalization control signal, it is determined that the equalization is normal. Otherwise, it is determined that the equalization is abnormal.
Inventors:
IZAWA, Takaaki (1500 Mishuku, Susono-sh, Shizuoka 07, 〒4101107, JP)
Application Number:
JP2011/065888
Publication Date:
January 19, 2012
Filing Date:
July 12, 2011
Export Citation:
Assignee:
YAZAKI CORPORATION (4-28, Mita 1-chome Minato-k, Tokyo 73, 〒1080073, JP)
矢崎総業株式会社 (〒73 東京都港区三田１丁目４番２８号 Tokyo, 〒1080073, JP)
矢崎総業株式会社 (〒73 東京都港区三田１丁目４番２８号 Tokyo, 〒1080073, JP)
International Classes:
H02J7/02; G01R31/02; H02J7/00
Attorney, Agent or Firm:
MIYOSHI, Hidekazu et al. (Toranomon Kotohira Tower, 2-8 Toranomon 1-chome, Minato-k, Tokyo 01, 〒1050001, JP)
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Claims:
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