초록 ▼

The invention relates to a device for managing battery packs by measuring and monitoring the operating capacity of individual battery modules in a battery pack. A programmable logic controller directs the selective closing of relays to allow individual battery modules to be load-tested using a varia

The invention relates to a device for managing battery packs by measuring and monitoring the operating capacity of individual battery modules in a battery pack. A programmable logic controller directs the selective closing of relays to allow individual battery modules to be load-tested using a variable discharge load unit, without compromising useful battery pack capacity. A battery module whose useful capacity falls below a predefined threshold may be connected to a battery charger for replenishment and then electrically realigned with the remaining modules in the pack for continued operation. Alternatively, an alarm may be triggered which alerts the user that the module is due for replacement. This sequence of events is performed on all cells in the pack at a predetermined interval.

대표청구항 ▼

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. A system for directly assessing and controlling the useful capacity of an online battery pack, comprising:a programmable logic controller operatively connected to a monitor circu

[ The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:] [1.]1. A system for directly assessing and controlling the useful capacity of an online battery pack, comprising:a programmable logic controller operatively connected to a monitor circuit and to one or more battery modules comprising said battery pack, said monitor circuit comprising battery module variable charging means, and variable discharge load means; wherein said programmable logic controller selectively and sequentially opens and closes a plurality of relays which connect with said variable charging means and said variable discharge load means to alternatively define a discharge circuit which enables one of said modules to be variably discharged by said variable discharge load means under a predefined variable load wherein the useful capacity is calculated from a time and current required to discharge said module under said predefined variable load by said programmable logic controller.