Global Control Platform (GCP) Diagnostic Manual with Diagnostic Trouble Code Definitions 电控EPR系统故障定义及诊断手册 版本：V 1.1 2007-9-5 广西玉柴机器股份有限公司技术中心电控部 前 言 尊敬的玉柴产品用户、产品服务工程师： 首先感谢您选用玉柴机器股份有限公司的产品，并感谢您阅读《电控EPR系统故障定义及诊断手册》！ 玉柴的服务宗旨是：“倾我所有、尽我所能、竭诚用户、诚信天下”,为了更好地履行玉柴的服务宗旨，我们编印了《电控EPR系统故障定义及诊断手册》，希望本手册可以让用户更好地认识了解玉柴产品的结构与配置，让服务工程师方便、快捷的帮用户解决故障。 本手册是根据玉柴电控EPR系统天然气发动机基本控制原理和控制策略编写的故障诊断手册，随着产品的不断改进提高和使用过程中不断出现的新故障，《电控EPR系统故障定义及诊断手册》中的有关内容将会有不同程度的变更，玉柴保留在不预先通知的情况下进行修改的权利，具体配置情况应以当时产品技术文件为依据，请用户和服务工程师注意本手册版本的变化。 《电控EPR系统故障定义及诊断手册》由玉柴机器股份有限公司策划，玉柴技术中心电控部编制。其编写不足之处在所难免，敬请您多多指教，使之渐臻完善。谢谢！ 玉柴机器股份有限公司技术中心电控部 2007年6月 1、专业术语缩写 ....................................................................................................................................................... 7 2、概述 ....................................................................................................................................................................... 9 3、故障码信息通讯及显示 ..................................................................................................................................... 10 3.1 诊断故障代码 ............................................................................................................................................ 10 3.2 串行网络 .................................................................................................................................................... 18 3.3 CAN ............................................................................................................................................................. 18 4、闪码和故障指示灯输出 ..................................................................................................................................... 19 5、故障标定设置/失效保护策略 ............................................................................................................................ 22 6、故障/诊断故障代码管理 .................................................................................................................................... 22 7、诊断测试 ............................................................................................................................................................. 28 7.1切断点火测试 ............................................................................................................................................. 28 7.2 切断喷嘴测试 ............................................................................................................................................ 29 7.3 点火测试 .................................................................................................................................................... 29 7.4 电子节气门(DBW)测试 ............................................................................................................................ 30 7.5 外部电路电源测试 .................................................................................................................................... 31 7.6 压缩测试 .................................................................................................................................................... 31 7.7 点火提前角控制测试 ................................................................................................................................ 32 7.8 怠速转速测试 ............................................................................................................................................ 32 7.9 阻止燃料喷射/点火输入开关 ................................................................................................................... 33 8、传感器参数 ......................................................................................................................................................... 34 8.1 进气温度/压力传感器(T-MAP) ................................................................................................................. 34 8.2 凸轮轴位置传感器 .................................................................................................................................... 34 8.3 水温传感器 ................................................................................................................................................ 36 8.4环境传感器（内置环境湿度、温度、压力传感器） .............................................................................. 36 8.5油门传感器 ................................................................................................................................................. 38 9、ECI EDIS软件使用方法介绍： ........................................................................................................................ 39 9.1 软件的安装 ................................................................................................................................................ 39 9.2 软件的使用 ................................................................................................................................................ 40 9.3 常用参数在软件中的位置和名称，以及相应的意义 ............................................................................. 45 9.4 曲线图的采集 ............................................................................................................................................ 45 9.5 标定文件的写入 ........................................................................................................................................ 48 10、常见故障处理流程 ........................................................................................................................................... 49 10.1 发动机不能起动 ...................................................................................................................................... 49 10.2 常见故障代码和排除方法 ...................................................................................................................... 51 11、 故障诊断代码描述 ......................................................................................................................................... 53 DTC 16- Crank and/or Cam Could Not Synchronize During Start ................................................................... 53 故障码16－曲轴信号或凸轮轴信号启动时不能同步 ................................................................................... 53 DTC 107- MAP Low Voltage ............................................................................................................................ 55 故障码107－进气岐管空气压力(MAP)电压低 ............................................................................................. 55 DTC 108- MAP High Pressure .......................................................................................................................... 57 故障码108－进气歧管压力高 ........................................................................................................................ 57 DTC 111- IAT Higher Than Expected Stage 1 .................................................................................................. 59 故障码111－IAT高于1级限值 ..................................................................................................................... 59 DTC 112- IAT Low Voltage ............................................................................................................................... 60 故障码112－IAT电压低 ................................................................................................................................. 60 DTC 113- IAT High Voltage .............................................................................................................................. 62 故障码113－IAT电压高 ................................................................................................................................. 62 DTC 116- ECT Higher Than Expected Stage 1 ................................................................................................. 64 故障码116－ECT高于1级限值 .................................................................................................................... 64 DTC 117- ECT/CHT Low Voltage .................................................................................................................... 65 故障码117－ECT/CHT电压低 ....................................................................................................................... 65 DTC 118- ECT/CHT High Voltage .................................................................................................................... 67 故障码118－ECT/CHT电压高 ....................................................................................................................... 67 DTC 121- TPS1 % Lower Than TPS2 % .......................................................................................................... 69
电控EPR系统故障诊断手册V1.1
