Electric vehicle chassis collision avoidance system

Abstract

The invention relates to the field of vehicles, and provides an electric vehicle chassis collision avoidance system. The system is composed of a rear end chassis subsystem, a middle end chassis subsystem and a front end chassis subsystem. The rear end chassis subsystem comprises a rear collision avoidance beam, a rear energy absorption box, a truss frame, a buffer spring and a buffer shaft which are connected in sequence, wherein the buffer spring and the buffer shaft are arranged on the truss frame. A passenger frame is arranged on the top of a stereo case and connected with the rear collision avoidance beam through buffer beams, the two buffer beams are symmetrically arranged on the rear collision avoidance beam, and a buffer component for buffering is arranged between the rear collision avoidance beam and the truss frame. The front end chassis subsystem comprises a front energy absorption box and a front collision avoidance beam. The middle end chassis subsystem comprises a power battery pack, a stereo case and longitudinal beams arranged on the two sides of the stereo case. The effect of ensuring the safety of passengers in a vehicle when the vehicle is collided by a vehicle behind is improved with the rear chassis subsystem as a main energy absorption zone and a rear end passive collision avoidance structure as the basis of a force transmission path.

Description

technical field [0001] The invention relates to the field of automobiles, more specifically, it relates to an electric vehicle chassis anti-collision system. Background technique [0002] As the skeleton of the vehicle, the chassis of the automobile plays the role of supporting and installing the assembly of the automobile engine and its various components, forming the overall shape of the automobile and playing the role of support and buffer after receiving the impact, especially for electric vehicles, lightweight The significance is greater, and the requirements for lightweight are higher. In order to achieve a significant lightweight effect, it is necessary to find new solutions in terms of materials, structures and manufacturing processes. [0003] The traditional automobile chassis is mostly center column or rectangular frame type. The Chinese patent with publication number CN104494702A discloses a pure electric automobile chassis system adopting a lightweight passenger...

AI Technical Summary

Problems solved by technology

[0004] The double-longitudinal multi-layer chassis frame is formed by mortise-jointing the longitudinal girders and cross-beams, so that the front and rear bridges are respectively fixed by two longitudinal girders. Due to the limited anti-collision performance and strength of the center pillar structure and the rear-end structure of the vehicle body, the performance of the rear-end chassis of the vehicle body under impact is reduced. safety performance

Images