Rear floor for vehicle and vehicle with same

Abstract

The invention provides a rear floor for a vehicle and the vehicle with the same. The rear floor for the vehicle comprises a rear floor body, a rear floor front cross beam and a rear floor rear cross beam, wherein the rear floor body comprises a crumple energy absorption area, a deformation transition area and a rigid area, and the crumple energy absorption area, the deformation transition area andthe rigid area are sequentially connected from the rear end of the vehicle to the front end of the vehicle to form a stepped rear floor structure; the rear floor front cross beam is connected with the deformation transition area, and a first energy absorption cavity is formed between the rear floor front cross beam and the deformation transition area; the rear floor rear cross beam is connected with the crumple energy absorption area, and a second energy absorption cavity is formed between the rear floor rear cross beam and the crumple energy absorption area. According to the rear floor for the vehicle, the collision energy absorption effect is remarkable, and it can be guaranteed that a driver and passengers are not hurt under the extreme condition.

Description

technical field [0001] The invention relates to the technical field of vehicles, in particular to a rear floor for a vehicle and a vehicle with the same. Background technique [0002] In today's various traffic accidents, vehicle rear-end collision is one of the most frequent and common accidents. RCAR low-speed collision regulations are indicators for evaluating vehicle damage and maintainability. In this field, foreign countries, especially Europe and the United States, have made great achievements. The results have been achieved, and a relatively mature body-in-white rear structure has been formed. Although some achievements have been made in China, due to the late start, the technology needs to be perfected. [0003] RCAR-related tests have great influence in the European Union and are a design standard that self-owned brand vehicles must meet. In this context, the establishment of an effective and reliable rear model of the body-in-white is the key. Generally, a reasona...

AI Technical Summary

Problems solved by technology

[0004] At present, the optimization of the rear anti-collision beam and the rear longitudinal beam is relatively mature. Taking the rear anti-collision beam as an example, the collision performance is improved by changing the curvature, cross-sectional shape, material, material thickness, and setting of crush grooves, etc. for the rear anti-collision beam. The longitudinal beam improves the crash performance by increasing the collapse guide and setting a larger collapse space, but there are few optimized designs for the rear floor structure

[0005] Generally speaking, the current structural optimization based on RCAR crash performance is concentrated on the rear anti-collision beam and rear longitudinal beam. It is undeniable that good results have been achieved, but this structural design is somewhat "palliative rather than permanent". The reason is that the purpose of examining the collision is to check the passenger space of the passenger compartment, and the essence is to increase the stiffness of the rear wall or the rear floor and reduce the intrusion. "

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