Method for updating module information in battery module structure

A method for updating lower module information in a battery module structure in which an upper controller controls and manages a lower module configured of a plurality of battery modules and lower battery managers connected to each of the battery modules by communicating with each of the lower battery managers, the method comprising steps of:

• when the lower module is additionally connected, recognizing, by the upper controller, the addition of the lower module by exchanging a message with the added lower module;
• and
• registering the added lower module by assigning, by the upper controller, a new unique ID to the added lower module by exchanging the message with the added lower module,
• wherein the step of recognizing the addition of the lower module comprises:
• when the added lower module is connected and then an operation thereof starts, transmitting, by the lower battery manager of the added lower module, the message of the added lower module to the upper controller;
• and
• receiving, by the upper controller, the message transmitted by the added lower module to recognize that a new lower module is connected, and
• wherein the step of recognizing the addition of the lower module further comprises:
• receiving, by the upper controller, the message of the added lower module and then confirming that measurement information in a battery pack is discontinuously changed to recognize that the new lower module is connected.