公开(公告)号：US06427519B2

公开(公告)日：2002-08-06

申请号：US09739908

申请日：2000-12-20

申请人： Tetsuhiko Ueda ,  Tokuo Sotozaki ,  Takashi Kai

发明人： Tetsuhiko Ueda ,  Tokuo Sotozaki ,  Takashi Kai

IPC分类号： G01N1902

CPC分类号： B60T8/172 ,  G01N19/02

摘要： Provided is a road surface friction coefficient measuring method and device for measuring the friction coefficient of road surfaces such as roads and runways, and which can be used by being mounted on a general car. This device has a spindle 5 detachably connected to the wheel of a travelling wheel 3 of a car, a support arm 6 oscillatably connected to the spindle, and a measuring wheel supported rotatably by the support arm. Provided to the support arm 6 are a vertical load generating mechanism for applying a vertical load to be added to the self weight of the measuring wheel 8, a first detection unit for detecting the vertical load that is applied to the measuring wheel from the road surface, a rotation transmission mechanism for transmitting to the measuring wheel the rotation of the spindle so as to provide a circumferential velocity difference between the travelling wheel and the measuring wheel, and a second detection unit for detecting the rotational resistance incurred by the measuring wheel from the road surface. The road surface friction coefficient is calculated with a computing unit based on the self weight of the measuring vehicle including the detected values of these detection units and the arm.

摘要翻译： 提供了一种用于测量道路和跑道等路面的摩擦系数的路面摩擦系数测定方法和装置，其可以安装在普通车上使用。 该装置具有可拆卸地连接到轿厢的行进轮3的车轮的主轴5，与主轴可摆动地连接的支撑臂6和由支撑臂可旋转地支撑的测量轮。 提供给支撑臂6的是用于施加要添加到测量轮8的自重的垂直载荷的垂直载荷产生机构，用于检测从路面施加到测量轮的垂直载荷的第一检测单元 旋转传递机构，其用于向所述测量轮传送所述心轴的旋转，以便提供所述行走轮与所述测量轮之间的圆周速度差;以及第二检测单元，用于检测来自所述测量轮的旋转阻力 路面。 基于包括检测单元和臂的检测值的测量车辆的自重计算单元计算路面摩擦系数。