Patent ID: 7647191
Filing Date: 2010-01-12
Classification: B60L,G01R,H02J,Y02T

Abstract:
1. A detector for detecting a state of an electrical storage device, wherein the electrical storage device comprises a plurality of capacitor blocks and a charge/discharge circuit for charging or discharging the capacitor blocks, the detector comprising: the plurality of capacitor blocks including: an electric current detector disposed between the capacitor blocks and the charge/discharge circuit; a plurality of the capacitors within a capacitor block coupled together one of in series, in parallel, and in serial parallel; a temperature sensor disposed near a capacitor of said plurality of capacitors; a switch for selecting said another of said plural of capacitors the capacitor, the switch coupled to each one of the capacitors or a plurality of the capacitors in groups; a voltage detector for measuring a voltage of the capacitor selected by the switch; a microprocessor for switching over the switch, and receiving outputs from the voltage detector and the temperature sensor; and a data communication medium for receiving and outputting data of the microprocessor; and a main computer for exchanging data with the capacitor blocks and receiving an electric current output from the electric current detector; wherein the data communication medium carries state information which includes an electric current value supplied to the main computer, a temperature data supplied to the microprocessors of the respective blocks, and a prediction data, found by the microprocessor, about deterioration of the capacitor; wherein the data communication medium gives a higher priority to information to the main computer.