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1. (WO2013161068) BATTERY MONITORING DEVICE AND BATTERY SYSTEM MONITORING DEVICE

Pub. No.:    WO/2013/161068    International Application No.:    PCT/JP2012/061420
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Sat Apr 28 01:59:59 CEST 2012
IPC: G01R 31/36
G01R 1/28
H02J 7/02
Applicants: HITACHI AUTOMOTIVE SYSTEMS, LTD.
日立オートモティブシステムズ株式会社
KUDO, Akihiko
工藤 彰彦
KIKUCHI, Mutsumi
菊地 睦
KANAI, Tomonori
金井 友範
YAMAUCHI, Tatsumi
山内 辰美
MACHIDA, Akihiro
町田 明広
Inventors: KUDO, Akihiko
工藤 彰彦
KIKUCHI, Mutsumi
菊地 睦
KANAI, Tomonori
金井 友範
YAMAUCHI, Tatsumi
山内 辰美
MACHIDA, Akihiro
町田 明広
Title: BATTERY MONITORING DEVICE AND BATTERY SYSTEM MONITORING DEVICE
Abstract:
This battery monitoring device, which monitors a cell group comprising multiple single cells connected in series, is provided with a reference voltage generating circuit for generating a variable reference voltage, a switching circuit which selects as the voltage to be measured one of various voltages including the reference voltage and the cell voltages of each single cell in a cell group, and an AD converter which measures the voltage to be measured selected by the switching circuit and outputs a digital signal corresponding to the measurement result.