This paper presents practical design procedure of the electric measuring circuit and evaluation/communication unit of the multi-cell series–parallel connection of traction lead-acid batteries. The target use is online SOC monitoring during the operation of automated guided vehicle (AGV), which is being used for in-house automated industrial processes. Based on the state-of-the-art review, proper methodology for SOC determination was selected for the given lead-acid battery technology. For that purpose, the measuring procedure for identification of the battery equivalent circuit was initially realized and is being described within the main text. The results from the equivalent circuit identification were used for design of the precise measuring circuit which is responsible for the determination of SOC levels based on selected methodologies. These methodologies were implemented within evaluating unit (MCU), while functionality of the proposed system for the SOC identification was tested and evaluated within standard operational conditions of AGV robot.

中文翻译：

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工业AGV多节牵引电池系统测量评估单元设计

本文介绍了牵引铅酸蓄电池多节串并联电测量电路和评估/通信单元的实际设计过程。目标用途是自动导引车 (AGV) 运行期间的在线 SOC 监控，该车辆用于内部自动化工业流程。基于最先进的审查，为给定的铅酸电池技术选择了适当的 SOC 确定方法。为此，最初实现了用于识别电池等效电路的测量程序，并在正文中进行了描述。等效电路识别的结果用于设计精确测量电路，该电路负责根据选定的方法确定 SOC 水平。