货车溜放阻力是驼峰自动化车辆溜放速度自动控制的重要参数之一，对于点式控制系统的自动化驼峰尤为重要。从国外情况看，法国是在主减速器前设两个测速段，确定钩车阻力；美国多数自动化驼峰是在主减速器前设直线测阻区段。我国目前自动化驼峰均在调车场Ⅱ制 Truck drag and drop resistance is one of the most important parameters for automatic control of hull speed and speed, which is particularly important for automated humps of point control systems. From a foreign perspective, France is in front of the main reducer set up two speed measuring section, to determine the hook car drag; the United States most automated hump is in front of the main reducer set a straight line resistance section. At present, China’s automated hump are in the yard Ⅱ system