Diagnosis for detecting communication loss between a controller of a battery system manager and a plurality of battery cell detection boards

摘要

A method for determining a non-communicating battery cell detection board (CSB) in a plurality of battery cell detection boards arranged in a serial chain comprises sequentially reconfiguring the serial chain of the battery cell detection boards to sequentially each of the plurality of battery cells Define battery cell detection boards as a last battery cell detection board in a temporary serial test string. A test loop feature of the battery cell detection boards sequentially establishes communication with the last battery cell detection board of each temporary serial test string. When an interruption of the communication between the controller of the battery system manager and the latest battery cell detection board of the current temporary serial test string is detected, the latest battery cell detection board of the current temporary serial test string is determined as the non-communicating battery cell detection board.