Integrated Front Longitudinal Beam Rear Section for Collision Energy Transfer
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Solution Overview
Problem
The existing vehicle body structures for electric vehicles face difficulties in manufacturing and matching of components, leading to decreased collision energy efficiency when transmitting energy from the front longitudinal beam to the rocker panel.
Innovation Solution
A front longitudinal beam rear section member with an integrally-formed structure comprising a base part and two side parts, connected to a cross beam and rocker panels, using C611 aluminum alloy without heat treatment, and featuring a rib assembly to enhance structural strength and energy transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple separate components are used to form the front longitudinal beam rear section, then manufacturing flexibility and assembly adaptability are improved, but manufacturing matching difficulty increases and collision energy transmission efficiency decreases
Solution Approach 1:
The patent merges multiple separate components (base part, first side part, second side part) into an integrally-formed structure through casting or forging. This integration eliminates the need for precise manufacturing matching between multiple components while maintaining the functional adaptability of the front longitudinal beam rear section structure.
2Ease of operation
If multiple separate components are connected using bolts or other connection methods, then assembly flexibility is improved, but collision energy transmission efficiency decreases due to connection interfaces
Solution Approach 1:
The patent combines multiple components into a single integrated structure formed by casting or forging, eliminating connection interfaces such as bolt joints. This ensures continuous and efficient transmission of collision energy from the front longitudinal beam through the rear section to the rocker panel, without energy loss at connection points.
3Adaptability or versatility
If multiple separate components are used with connection processes, then manufacturing adaptability is improved, but production efficiency decreases and device investment increases
Solution Approach 1:
The patent employs integrally-formed structures created through casting or forging processes, which eliminate multiple assembly steps and connection operations. This integration streamlines the manufacturing process, improves production efficiency, and reduces the need for additional assembly equipment and device investment.
4Adaptability or versatility
If multiple separate components are used, then structural adaptability is improved, but product consistency decreases
Solution Approach 1:
The patent produces the front longitudinal beam rear section as an integrally-formed structure through standardized casting or forging processes. This ensures uniform material properties, consistent structural characteristics, and high product consistency across production batches, while the integrated design maintains structural adaptability for different vehicle configurations.
Data Source
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AI summary
The disclosure relates to the technical field of vehicle body structures, and in particular provides a vehicle (100) and a front longitudinal beam rear section member (2) of the vehicle. The front longitudinal beam rear section member (2) comprises a base part (20), and a first part (21) and a second part (22) which are located on two sides of the base part (20) in a width direction of the vehicle, the vehicle is provided with a traction battery, and the traction battery is at least connected to the base part (20); the vehicle comprises a cross beam (3) located behind the front longitudinal beam rear section member (2) in a length direction of the vehicle, and the base part (20) is connected to the cross beam (3); and the vehicle comprises two rocker panels (8a,8b) separately arranged in the width direction of the vehicle, and each of the first part (21) and the second part (22) is connected to the rocker panel (8a,8b) on a corresponding side, wherein at least some of the base part (20), the first part (21) and the second part (22) are of an integrally-formed structure. With such a configuration, difficulties in the manufacture of different parts themselves and in matching between parts are reduced, and the product consistency of front longitudinal beam rear section members (2) is improved.