Patent ID: 8587257
Filing Date: 2013-11-19
Classification: B60L,H02J,Y02T

Abstract:
1. A secondary battery device comprising: an assembled battery comprising a plurality of secondary battery cells; a voltage detector configured to detect respective voltages of the plurality of secondary battery cells; a diagnosing circuit configured to output an secondary battery cells detected by the voltage detector are an overvoltage that is equal to or more than a predetermined threshold value; a shutdown signal generating circuit configured to output a first level shutdown signal to an upper controller when it is judged that any of the secondary overvoltage alarm signal for notifying whether the respective voltage values of the plurality of battery cells is overvoltage by the overvoltage alarm signal; and a controlling circuit configured to be supplied with the shutdown signal and to control operations of the diagnosing circuit and the shutdown signal generating circuit; wherein the shutdown signal generating circuit is configured to set the shutdown signal at a second level when a self-diagnosis is made on the diagnosing circuit, and to output a confirmation overvoltage alarm signal for notifying the controlling circuit of the overvoltage when the overvoltage alarm signal for notifying the overvoltage is supplied; wherein the diagnosing circuit comprises: wherein the shutdown signal generating circuit comprises: