Patent ID: 9312703
Filing Date: 2016-04-12
CPC Classification: H02J,H02M

Claim Text:
1. A charge control method for an electric storage apparatus that uses, as an electric storage means, a group of capacitors that include 2 n (where n is an integer of 2 or more) electric double layer capacitors, from first to 2 n-th electric double layer capacitors, having an equal electrostatic capacity, and that is configured such that adjacent electric double layer capacitors can be connected either in series or in parallel by a switch and the 2 n-th electric double layer capacitor and the first electric double layer capacitor can be connected in parallel by a switch, the charge control method comprising: wherein where two electric double layer capacitors connected in parallel are defined as a parallel section, charging is started from a state in which all of the electric double layer capacitors are connected in series, and first processing and second processing are repeated until a number P of parallel sections reaches n, and an inter-terminal voltage of at least one of the the first processing includes: when the number P of parallel sections is 1 or greater, i is an integer whose value cycles from the second processing includes: when a voltage of the electric storage means reaches a preset first voltage value, the number P of parallel sections is increased by one.