专利名称：ACCUMULATION DEVICE发明人：OSHIDA, Syuji申请号：EP08862663.5申请日：20081216公开号：EP2221949A1公开日：20100825
专利附图：
摘要：Electricity storage device (11) of high reliability is provided which can determineabnormality of at least one of DC/DC converter (21) and electricity storage unit (27).There are DC/DC converter (21) connected to electricity storage unit (27) and controlcircuit (35) controlling DC/DC converter (21). When electricity storage unit (27) is being
charged or discharged, control circuit (35) obtains efficiency Efn of DC/DC converter (21)based on input/output voltage value Vi, input/output current value I and electricitystorage unit voltage value Vc detected by input/output voltage detection circuit (19),input/output current detection circuit (17), and electricity storage unit voltage detectioncircuit (29), respectively. By using temperature T detected by temperature sensor (31),when efficiency Efn lies out of predetermined range (from Emin to Emax) according toinput/output voltage value Vi, input/output current value I, electricity storage unitvoltage value Vc and temperature T, at least any one of electricity storage unit (27) andDC/DC converter (21) is determined to be abnormal.
申请人：Panasonic Corporation
地址：1006, Oaza Kadoma Kadoma-shi Osaka 571-8501 JP
国籍：JP
代理机构：Grünecker, Kinkeldey, Stockmair & Schwanhäusser Anwaltssozietät
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