Vehicle front bumper preparing method with pedestrian protection function, vehicle front bumper and vehicle

Abstract

The invention relates to the technical field of automobiles, in particular to a vehicle front bumper preparing method with a pedestrian protection function, a vehicle front bumper and a vehicle. The vehicle front bumper preparing method includes the following steps that a vehicle front bumper model is prepared according to an existing vehicle front bumper; the datum line of the upper portion of the front bumper is determined on the vehicle front bumper model; multiple collision points are marked on the benchmark line at the upper portion of the front bumper at intervals in the length direction, and a lower leg shape injury testing method is used for conducting a lower leg shape injury test on all the collision points; semi-penetration treatment is conducted on the collision points which donot conform to a lower leg shape injury test result, then the collision points obtained after the semi-penetration treatment are subjected to a lower leg shape injury test, and an optimal front bumper model is obtained; and the vehicle front bumper is manufactured according to the optimized front bumper model. By means of the vehicle front bumper preparing method with the pedestrian protection function, the technical problems that a strengthening plate is additionally arranged in the existing front bumper, and consequently, the cost is increased, and the modeling of the front bumper is oftencomplex are solved.

Description

technical field [0001] The invention relates to the technical field of automobiles, in particular to a method for preparing a front bumper for pedestrian protection, a front bumper and a vehicle. Background technique [0002] At present, official evaluation agencies and OEM R&D agencies are gradually paying attention to the pedestrian protection performance of vehicles. The pedestrian protection performance of vehicles is not only related to the score and rating of collision safety performance, but also closely related to the protection effect of pedestrians during collisions. [0003] The lower leg impact test is an important assessment item in pedestrian protection. The lower leg damage test method is to adjust the vehicle to a normal driving posture, and the lower leg impacts the front leg test area of ​​the vehicle horizontally at a speed of 40kph to evaluate the impact of the vehicle on pedestrian legs. The collision protection performance of the vehicle is collected du...

AI Technical Summary

Problems solved by technology

[0006] The object of the present invention is to provide a kind of preparation method of the front bumper with protection pedestrian, front bumper and vehicle, by proposing the preparation method of the front bumper of pedestrian to solve the inside of the front bumper existing in the prior art Adding reinforcement plates will lead to an increase in cost. The shape of the front bumper is often complex, and the increase or decrease of material thickness after finalization will increase the technical problems that are difficult or even impossible to achieve.

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