An electric wheel cover reinforcement plate for improving side collision safety performance

Abstract

The invention relates to the field of automobile production, in particular to an electric vehicle wheel hood reinforcing plate capable of improving side face collision safety. The electric vehicle wheel hood reinforcing plate capable of improving the side face collision safety comprises a reinforcing plate body which is mounted on a vehicle body, the reinforcing plate body comprises a reinforcingplate upper segment in an inverted U shape, and a reinforcing plate lower segment is arranged at the bottom of the reinforcing plate upper segment; an inner plate front segment is arranged on the side, close to the vehicle body, of the reinforcing plate upper segment, an inner plate upper segment is arranged at the top of the inner plate front segment, and a first threshold supporting plate and asecond threshold supporting plate which are connected with the vehicle body are arranged on the reinforcing plate lower segment. The electric vehicle wheel hood reinforcing plate is mainly applied totwo-door two-seat vehicles, so that the efficiency and stability of energy absorption during side face collision are good, a reasonable invasion amount and invasion speed can be obtained, and passengers can be better protected from injury.

Description

technical field [0001] The invention relates to the field of automobile manufacturing, in particular to an electric wheel cover reinforcing plate which improves the safety performance of side collision. Background technique [0002] Car collisions are usually divided into frontal collisions, side collisions, rear collisions, rollovers and pedestrians. In traffic accidents, the proportions of different types of collisions and the fatality rate are different. Side collision accidents account for 28% of the total. However, because there is almost no buffer space in side collisions, it is more difficult to protect the occupants in the accident, so the fatality rate High (accounting for 34% of the total accident fatalities), the occupant injury in side collision comes from two aspects, the impact speed of the side structure on the person and the living space caused by the intrusion of the side structure are reduced. In the development and research of the actual model, the design ...

AI Technical Summary

Problems solved by technology

In traffic accidents, the proportions of different types of collisions and the fatality rate are different. Side collision accidents account for 28% of the total. However, because there is almost no buffer space in side collisions, it is more difficult to protect the occupants in the accident, so the fatality rate High (accounting for 34% of the total accident fatalities), the occupant injury in side collision comes from two aspects, the impact speed of the side structure on the person and the living space caused by the intrusion of the side structure are reduced. In the development and research of the actual model, the design It is very important to obtain a relatively reasonable intrusion amount and intrusion speed for a reasonable and complete load path

[0003] At present, the wheel house reinforcement plates of most models on the market are generally "L-shaped" wheel house reinforcement plates, which have the advantages of strong manufacturability and good economy, and the disadvantages of weak crash resistance. The side impact barrier of the passenger car mainly acts on the wheel house reinforcement plate area, and the wheel house reinforcement plate is the main force-bearing component. The impact resistance of the “L-shaped” wheel house reinforcement plate structure seems to be limited. In the formed cavity, its cross-sectional shape is a parallelogram. This structure has two defects. First, the side wall of the wheel house is a load-bearing wall and its shape is inward. During a side collision, the collision force is along the direction of the vehicle. The component force is large, and the structure is easy to be unstable; on the other hand, the wheel cover is a panel part, not a skeleton part. Considering weight reduction and cost reduction, various car companies generally use mild steel, and the material thickness is thinner, and the crash resistance is better. Poor, resulting in excessive intrusion volume and intrusion speed

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