The invention discloses a remote real-time fault diagnosis method for an emergency rescue pump truck. The method comprises the steps that diagnosis parameters are determined, a data collector is installed, and a diagnosis center is built; detection parameters which can exactly reflect the operation conditions and criticality of an engine of the emergency rescue pump truck are selected; core parameters such as engine air inlet and exhaust pipe resistance, engine oil temperature, cooling water temperature and oil injection pressure are collected; sensors are installed at positions such as a water pump driving shaft, a water pump inlet and a water pump outlet to obtain operation parameters of a water pump; and after the input information about the engine and the water pump is subjected to preprocessing and feature extraction through a diagnosis center, through relevant calculation, intelligent comparative analysis is carried out with a state alarm threshold value and the like to judge whether the engine and the water pump unit are normal or not and judge abnormal reasons. According to the remote real-time fault diagnosis method for the emergency rescue pump truck, the emergency vehicle fault can be detected in real time, reasons are diagnosed in real time through an expert diagnosis system and sent to field personnel for assisting maintenance, and convenience and rapidness are achieved.

    本发明公开了一种应急抢险泵车远程实时故障诊断方法,包括诊断参数的确立、数据采集器的安装和诊断中心的建立,选择能确切反映应急抢险泵车发动机运行工况及关键性的检测参数,采集发动机进气和排气管阻力、机油温度、冷却水温度以及喷油压力等核心参数,在水泵驱动轴及水泵进出口等位置安装传感器,以获取水泵的运行参数,通过诊断中心对输入的发动机和水泵信息进行预处理与特征提取后,经相关计算,与状态报警阈值等进行智能化的比较分析,以判断发动机及水泵机组是否正常以及非正常的原因。本发明能够实时检测抢险车故障并通过专家诊断系统进行实时诊断出原因发送给现场人员进行协助维修,方便快捷。


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    Title :

    Remote real-time fault diagnosis method for emergency rescue pump truck


    Additional title:

    一种应急抢险泵车远程实时故障诊断方法


    Contributors:
    SUN PEIFENG (author) / ZHONG JIANGUO (author)

    Publication date :

    2020-12-25


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR



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