Ground Speed Limiter
行驶速度限速器为可选功能，可通过 Caterpillar 电子技师（ET）由可编程参数启用。 行驶速度限速器仅能通过出厂密码在 ET 中启用或禁用。 在水平地面操作机器时，行驶速度限速器软件可设置机器的最高行驶速度。 行驶速度限速器将尝试把机器最高速度限制为 20 km/h (12.5 mph)。
行驶速度限速器软件使用以下输入以控制机器的行驶速度：发动机转速, 机器加速度 和 行驶速度。 如果转速传感器发生故障，行驶速度限速器将会把发动机转速默认为表 1 中的转速。
Show/hide table
| 档位 | 变速箱所要求的发动机转速 |
| 1 | 高怠速 |
| 2 | 高怠速 |
| 3 | 2100 RPM |
| 4 | 2100 RPM |
注: 在下坡行驶时，行驶速度限速器软件将不能阻止机器超过限制速度。
Caterpillar Information System:
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