一种燃料电堆电压模块化巡检系统

By connecting the sampling unit and the analysis and calculation unit through a daisy chain, and combining the voltage signal and the standard voltage difference, the faults in the fuel cell stack can be quickly located. This solves the problems of system complexity and inaccurate fault location in the existing technology, and achieves efficient fault detection and handling.

CN118897209BActive Publication Date: 2026-07-17DONGFENG MOTOR GRP

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DONGFENG MOTOR GRP
Filing Date
2024-06-25
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing fuel cell voltage monitoring systems are complex, increasing costs and signal transmission interference. They cannot accurately locate faults, affecting the accuracy of battery status assessment and the timeliness of fault detection.

Method used

Multiple sampling units are connected by a daisy chain. The analysis and calculation unit detects the cell voltage signal and position information in real time. Combined with the standard voltage difference and rate of change, the faulty cell is quickly located and the fault is handled by the stack controller.

Benefits of technology

It simplifies system wiring, reduces costs, improves the reliability and stability of data transmission, enables rapid detection and location of cell faults, improves the operational safety of fuel cell stacks, and reduces maintenance costs.

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Abstract

本发明公开了一种燃料电堆电压模块化巡检系统,包括多个采样单元、分析计算单元和电堆控制器;所有采样单元的输入端分别与待测电堆的多个电池片连接,用于实时检测对应电池片的电压信号和位置信息;多个采样单元的输出端通过菊花链依次串联;分析计算单元与任意一个采样单元的输出端连接,用于获取所有采样单元检测到的电压信号和位置信息;分析计算单元根据电压信号和标准电压,判断待测电堆内所有电池片的状态信息;当状态信息中至少一个电池片被判断为故障,分析计算单元根据位置信息,对故障电池片进行定位;电堆控制器根据状态信息和定位,进行电堆故障处理。实现了电池片的故障检测和快速定位,提高了燃料电堆的运行安全性,降低了成本。
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