770G and 772G OEM Off-Highway Truck Caterpillar


Machine Electronic Control Module (Chassis)

Usage:

770G RMD



图 1g02404677

底盘电子控制模块(ECM)的位置视图

(1) 底盘 ECM




图 2g02404725

底盘电子控制模块(ECM)

有关底盘电子控制模块(ECM)的更多信息,请参阅维修手册, UENR1125, "底盘电子控制系统"和示意图, UENR1138。

底盘电子控制模块(ECM)位于驾驶室前部,仪表板下面。 底盘 ECM 可以转换变速箱的档位。 操作员输入指示所需的机器速度和方向。 底盘 ECM 转换所需的速度和方向,然后将信息发送给控制动力传动系部件的开关和阀。 底盘 ECM 根据输入信息和存储器信息做出决定。 底盘 ECM 接收输入信息和储存信息后,通过输出装置发出相应响应。 底盘 ECM 的输入和输出与机器线束相连。

输入

机器有几个输入设备。 输入设备通知底盘 ECM 机器的操作条件。 机器的输入来自开关和传感器。 各开关可向机具 ECM 输入提供开路、接地或蓄电池正极信号。 传感器不断向底盘 ECM 提供变化信号。

输出

底盘 ECM 通过输出发出电信号,对决策做出响应。 输出可以产生一个操作,或者向底盘 ECM 提供信息。

输入/输出

CAT 数据链路 用于与机器上的其它电子控制模块进行通信。 CAT 数据链路具有双向通信能力。 双向数据链路允许底盘 ECM 接收并发出信息。 CAT 数据链路 可实现与其它电子控制装置共享信息。

利用 CAT 数据链路将模块标识符(MID)分配制所有电子控制装置。 底盘 ECM 的 MID 为 081。

Caterpillar Information System:

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