Patent ID: 9673639
Date: 2017-06-06
CPC Classifications: H01M,H02J,Y02E

Claim:
1. A rechargeable battery system comprising: a plurality of battery packs; a controller that controls the plurality of battery packs; and a daisy chain communication path formed by connecting the controller and the plurality of battery packs in series and a ring topology for packet communication, in which the controller is connected to one of the plurality of battery packs and another of the plurality of battery packs for forming a ring single continuous pathway for a packet through each of the controller and the plurality of battery packs, wherein the controller sends a fixed-length packet divided into segments so as to flow in one direction on the communication path, the number of segments being equal to or more than the number of battery packs, and each of the plurality of battery packs stores data related to the battery pack in a segment assigned to the battery pack in the fixed-length packet received from a battery pack preceding in the communication path and sends the fixed-length packet to a succeeding battery pack.