3176C, 3406E and 3456 Industrial Engines Caterpillar


General Information

Usage:

3196 1DW

电子控制系统

电子控制系统由 ECM( Electronic Control Module,电子控制模块)、导线线束、开关、传感器和喷油器组成。 ECM 主要包括两个部分:控制计算机(硬件)和闪存文件(软件)。 控制计算机由微处理器和电子电路组成。 闪存文件中包含发动机的工作特性。 工况图确定发动机的以下特性:

  • 功率

  • 扭矩曲线

  • 发动机转速 (rpm)

有关电子控制系统的其他信息,请参阅故障诊断与排除, "系统概述"。

接口

ECM 通过软件和 ECM 上的电气接头与发动机接口。 发动机向 ECM 上的电气接头提供输入,以表明开关和传感器状态。 ECM 必须经过正确配置才能解读这些输入。 ECM 通过 ECM 上的电气接头提供发动机系统输出,以控制指示灯、电磁阀和其他设备。 请参阅故障诊断与排除, "配置参数"。

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