Travel Motor Control Function
ECM 通过向行驶马达旋转斜盘角度限制电磁阀发送可变输出电流来控制行驶马达的转速和扭矩。 此电磁阀将导致行驶马达旋转斜盘增加或降低通过行驶马达的液压流量。 ECM 将监视来自行驶踏板位置传感器和变速箱输出转速传感器的输入，以确定电流输出。
默认速度设置为 20 km/h (12.4 mph)。
ECM 还将利用内部计算公式确定机器行驶速度。 此公式考虑了车轮半径、车桥传动比和变速箱转速。
如果出现变速箱转速传感器的现行诊断代码，ECM 将启用跛行回家模式。
ECM 还将利用行驶马达旋转斜盘角度限制电磁阀限制行驶马达的旋转斜盘角度，从而控制行驶马达制动功能。 行驶马达制动特性是通过软开关面板 (SSP) 控制。 动力传动系 ECM 将点亮 SSP 上制动特性开关上方的三个 LED 之一，以指示处于接通状态的制动特性。 三个制动特性分别是：
- 制动特性 1 = 低
- 制动特性 2 = 中
- 制动特性 3 = 高
Caterpillar Information System:
Product Link Antenna Placement{7606} Product Link Antenna Placement{7606}
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