R2900G Load Haul Dump Machine Electrical System Caterpillar


Autoshift Control (STIC Steering)

Usage:

R2900G JLK


图 1g01149817
自动换档控制(STIC 转向)

自动换挡控制(STIC 转向)电路的部件有自动换挡控制开关(STIC 转向)、动力传动系电子控制模块(动力传动系 ECM)和变速箱控制装置(STIC 转向)。



图 2g01047962
驾驶室
(1) 自动换挡控制开关(STIC 转向)
(2) 手动位置
(3) 自动位置


图 3g01146358
驾驶室
(4) 动力传动系 ECM

钥匙起动开关处于接通位置时,蓄电池通过断路器 #9 向动力传动系 ECM 提供 24 伏电源。



图 4g01146762
驾驶室
(5) 升档开关
(6) 降档开关
(7) 变速箱控制装置(STIC 转向)
(8) 变速箱方向控制开关

动力传动系 ECM (4) 接收变速箱控制(STIC 转向) (7) 发出的指示所选档位的接地信号

当自动换档控制开关(STIC 转向) (1) 移到手动位置 (2) 时,向动力传动系 ECM 提供接地信号。 动力传动系 ECM 监控来自升档开关 (5) 和降档开关 (6) 的信号,以确定操作员所选择的档位。

当自动换档控制开关处于自动位置 (3) 时,向动力传动系 ECM 提供接地信号。 当动力传动系 ECM 收到此信号时,动力传动系 ECM 将自动控制升档和降档。

自动换挡控制开关的位置表示自动模式下动力传动系 ECM 所选择的最高档位。 可以通过对动力传动系 ECM 编程来限制此选择。

参考: 有关自动换档控制(STIC 转向)的更多信息,请参阅操作和保养手册, "自动换档控制(STIC 转向)"。

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