Deformable rear crossmembers with special extrusion section design for bending down in crash loadcases

US11623692B2 · kind B2 · utility

Assignee

• VOLVO CAR CORPORATION · SE

Inventors

• Johan Eklund · Åmål, SE
• Anders Sandahi · Gothenburg, SE
• Jens Raine · Varberg, SE
• Domenico Macri · Gothenburg, SE
• Emil Claesson · Gothenburg, SE
• Per Zachrison · Gothenburg, SE
• Kaldon Kalasho · Gothenburg, SE
• Robin Larsson · Gothenburg, SE
• Martin Granlund · Gothenburg, SE
• Patrik Ljungbäck · Gothenburg, SE

Key dates

• Filing date: Jul 9, 2021
• Grant date: Apr 11, 2023
• Expiry date: Oct 13, 2041

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B62D29/008
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

A support extrusion for a subframe structure of a vehicle and methods of fabricating the same. In one example, a support extrusion can comprise a multicell structure that facilitates coupling the support extrusion with a rear crossmember of the subframe structure. The multicell structure can comprise a front cell column and a rear cell column that intervenes between the front cell column and the rear crossmember in a longitudinal direction of the subframe structure. The front cell column can comprise a trigger that facilitates plastically deforming the front cell column downward in a vertical direction of the subframe structure when subjected to impact forces of a frontal crash.