汽车接近角,离去角和纵向通过角的测量

介绍了日本汽车标准化协会（JASO）对汽车接近角、离去角和纵向通过角的定义。按照该定义，可以用简单的测量工具测得若干个长度尺寸，然后代入按几何关系推导出的公式中求得上述三个角度的精确值，既提高了测量精度，又便于各车型之间这些参数的比较。

Measurement of Approach, Departure and Ramp Angles

In this paper the definitions of approach angle,departure engle and ramp angle of a motor vehicle defined by Japan Automobile Standardization Organization (JASO)are presented.Based on the definitions,various size in length can be measured with simple measuring gauges,then the precision angular figures of the three parameters metioned above can be solved according to the equations derived by relevant geometric relations. In this way it can not only enhance the measuring accuracy,but also be easy to compare these parameters for different motor vehicles.