This chapter introduces the engineering knowledge of automobile front protection, mainly including pedestrian protection, calf protection, front and rear end protection of low speed collision, license plate regulations, convex regulations, front face layout and so on
There are different partitions for different parts of the collision, and the partitioning methods are different
[Thigh collision area]
Upper boundary line: the boundary line before collision
Lower boundary: The track line with a 700mm ruler and the vertical plane at a 20 degree Angle and the front conformal tangent
The thigh collision area is mainly the traditional grille area. In this area, attention should be paid to the hair cover lock and the Angle between the front and the thigh, which can also be understood as the smoothness of the front.
[Calf collision area]
Upper boundary: The track line with a 700mm ruler and the vertical plane at a 20 degree Angle and the front conformal tangent
Lower boundary: Use 700mm ruler and vertical plane to form a -25 degree Angle and the front conformal tangent track line
Side boundary: Use the plane at 60 degrees to the XZ plane and the front conformal intersection locus line
The calf collision area is a more important scoring item, in this area requires a certain amount of calf support, so many have the calf support beam
