Automobile and design method thereof and checking method for automobile protective device

Abstract

The invention discloses a checking method for an automobile protective device. The checking comprises the following steps: determining a ground level, the modeling of an automobile, and a collider, wherein the collider comprises a main body part and a collision part, tangently setting the surface of the collision part and the surface of a fender-guard skin at a tangent point; measuring the distance D1 between the tangent point on the surface of the collision part and the point on the surface of a fender-guard beam, and a minimum distance D2 between the surface of the main body part and the point on an important component of the automobile; computing relative gap deltaD=D2-D1, when deltaD is more than D0, regarding that the automobile protective device meets the security requirement. The invention further provides an automobile and a design method thereof. Through the adoption of the above technical scheme, the checking of the protective device at the design stage can be realized so that the design is convenient to modify, the checking cost and the design period are reduced; and the potential damage risk of the important component in the low speed collision process can be avoided in the development and design stage of a new model, and the performance of the automobile product is further improved.

Description

technical field [0001] The present invention relates to the field of automobile design, in particular, to a checking method for a vehicle protection device, a design method of a vehicle, and a vehicle. Background technique [0002] The front and rear ends of the vehicle are provided with protective devices. Specifically, front and rear bumper skins, bumper beams, energy-absorbing foam materials, etc. are respectively provided at the front and rear ends of the vehicle. In actual driving conditions, the protection devices at the front and rear of the vehicle play a protective role when the front and rear of the vehicle come into contact with the front or rear vehicle or obstacles on the road or in a mild low-speed collision, without causing serious damage to the vehicle. , in order to protect the body of the vehicle and important system components, especially the safety-related lighting devices from damage, and minimize maintenance costs. [0003] At present, tests are usuall...

AI Technical Summary

Problems solved by technology

However, the front bumper skin and the rear bumper skin are soft parts, which move together with the collider and important parts during the collision, and the accuracy cannot be guaranteed

Images