Longitudinal reinforcement.

The external reinforcement of vehicle side members addresses the need for improved safety and reduced complexity by enhancing rigidity and reducing parts, eliminating internal partitions in vehicle structures.

FR3168843A1Pending Publication Date: 2026-05-29STELLANTIS AUTO SAS
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Patent Information

Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
STELLANTIS AUTO SAS
Filing Date
2024-11-26
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Existing vehicle designs face challenges in ensuring passenger safety and controlling repair costs in side impacts while minimizing the complexity and weight of vehicle structures, particularly in electric vehicles, due to the need for internal partitions in hollow sections that increase parts and production costs.

Method used

A side member reinforcement is attached to the external face of a vehicle's side member, forming reinforcement zones that act as partitions to enhance rigidity and absorb impact energy, eliminating the need for internal partitions.

Benefits of technology

The reinforcement effectively resists intrusion into the passenger compartment during side impacts, maintains structural rigidity without internal partitions, and reduces assembly parts, thereby lowering production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to a side member reinforcement (1) designed to equip and reinforce a side member of a motor vehicle body, the reinforcement (1) extending between a first face (6), designed to be fixed and extend in support of an external face of the side member, and a second opposing face (8), the reinforcement (1) having at least one reinforcement zone (9), each projecting from the second face (8), each reinforcement zone (9) being shaped to form a partition between the external face of the side member and the first face (6) to stiffen the side member by resisting bending of the side member in the event of a lateral impact on the side member equipped with the reinforcement (1). The invention further relates to a side member equipped with such a reinforcement (1) and to vehicle bodies having such a side member. (Figure 1)
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