Platform lower automobile body for automobile

Abstract

A platform lower automobile body for an automobile comprises a modularized engine compartment, a modularized front floor, a modularized middle channel, a modularized rear floor and a modularized rear suspension support. The length direction of the platform lower automobile body for the automobile is defined as a first direction. The length of each of the modularized engine compartment, the modularized front floor, the modularized middle channel and the modularized rear floor can be adjusted in the first direction. The modularized engine compartment, the modularized front floor and the modularized rear floor are sequentially and detachably connected in the first direction. The modularized middle channel is detachably connected between the modularized engine compartment and the modularized rear floor and embedded in the modularized front floor. The modularized rear suspension support is detachably connected to the installation bottom face of the modularized rear floor. By the adoption of the platform lower automobile body for the automobile, the platform general design of various automobile types can be achieved, an automobile development period can be better shortened, and the development cost and development risks of novel automobile products are reduced.

Description

technical field [0001] The invention relates to the technical field of automobile bodies, in particular to an automobile platform lower body. Background technique [0002] As the automobile development process continues to mature, the speed at which new models are launched by major automobile manufacturers is also accelerating, and the production of the lower body of a new model directly affects the speed of the entire automobile development process. [0003] figure 1 It is a three-dimensional structural schematic diagram of an existing automobile lower body. Such as figure 1 As shown, the lower body 200 of the automobile made in the traditional way includes an engine compartment assembly 210, a front floor assembly 220, a rear floor assembly 230 and a suspension assembly (not shown). The engine compartment assembly 210 includes a dash panel assembly 212 and a front longitudinal beam 214 , the front longitudinal beam 214 has an irregular arc structure and is connected to ...

AI Technical Summary

Problems solved by technology

The connection ends between the front floor 222 and the middle channel 224 of the front floor assembly 220 and the rear floor 232 are irregular structures, and it is impossible to shorten the length of the rear end of the front floor 222 and the middle channel 224 to realize the wheelbase of the entire vehicle lower body 200 shortening of

In addition, since the connection end of the rear floor 232 and the rear panel 234 is an irregular structure, it is impossible to shorten the length of the rear overhang of the entire vehicle lower body 200 by shortening the length of the rear end of the rear floor 232.

The suspension assembly is connected to the bottom surface of the rear floor 232. Due to the structural limitations of the rear floor 232, the bottom surface of the rear floor 232 can only be connected to a single suspension assembly. rack assembly

The engine compartment assembly 210, the front floor assembly 220, the rear floor assembly 230 and the suspension assembly of the automobile lower body 200 cannot exist independently and cannot be changed and adjusted separately. Change the engine compartment assembly 210, Any part of the front floor assembly 220, the rear floor assembly 230 and the suspension assembly, other parts may not work normally

[0004] Therefore, the lower car body 200 cannot realize platform design, that is, one car lower body 200 can only be applied to one model, which makes the development cycle of the new car lower body long, and the technical risk and development cost are high

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