M313D, M315D, M315D Series 2, M315D2, M316D, M317D Series 2, M317D2, M318D, M320D2, M322D, M322D 2 MH, M322D2 and M324D 2 MH Wheeled Excavators Electronic System Caterpillar


Travel Speed Lock Function

Usage:

M315D2 CA4



图 1g02463221

行驶速度锁定功能部件的连接

通过使用行驶速度锁定功能,能够让机器在最大行驶速度下工作更长时间。 行驶速度锁定功能由机器 ECM 启用

当 ECM 激发行驶锁定磁铁时,会启动行驶速度锁定功能,磁铁将行驶踏板保持在完全踩下的位置。

行驶锁定磁铁是一块电磁铁。 磁铁电路与一个 ECM 接通 / 断开 输出相连。 当 ECM 接通磁铁的输出时,系统电压将激发磁铁。

必须当以下条件正确时,ECM 才会激发行驶锁定磁铁。

  1. 左扶手必须和扶手位置开关指示的一样处于向下位置。

  1. 行车制动器必须与制动系统压力传感器指示的一样没有接合。

  1. 行驶踏板与行驶踏板位置传感器指示的一样完全踩下。

  1. 软开关面板(SSP)上的行驶锁定按钮必须和 J1939(CAN)数据链路上的 SSP 指示的一样按下。

  1. 停车制动器在 OFF 位置。

  1. 制动系统液压压力必须和制动器油蓄能器压力开关(开关触点闭合到接地)指示的一样在正常范围内。 该信息由监视器通过 J1939(CAN)数据链路发送到 ECM。

  1. 变速箱液压压力必须与变速箱压力传感器指示的一样在正常限度内。

当 ECM 检测到这些条件正确,ECM 将接通行驶锁定磁铁的输出。 磁铁会将行驶踏板保持在完全踩下位置。

当以下任何一种情况发生时,ECM 将断开行驶锁定磁铁的输出。

  • 操作员踩下行车制动器踏板。

  • 操作员按下 SSP 上的行驶锁定按钮以停用该功能。

  • 左扶手升起。 行驶期间请勿升起左扶手。

如果扶手位置开关或行驶踏板位置传感器出现了激活的诊断代码,ECM 将停用行驶锁定功能。

当机器备用模式激活时,ECM 将停用行驶锁定功能。

该功能可以使用 Cat ET 配置屏幕来安装或卸载。

Caterpillar Information System:

M313D, M315D, M315D Series 2, M315D2, M316D, M317D Series 2, M317D2, M318D, M320D2, M322D, M322D 2 MH, M322D2 and M324D 2 MH Wheeled Excavators Electronic System Travel Speed Function
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