VEHICLE BODY FLOOR STRUCTURE

The vehicle body floor structure integrates the floor tunnel and transverse element to enhance rigidity and space utilization, addressing the separation issue in existing designs by allowing the tunnel to extend rearward or the transverse element to move forward, thus optimizing space for batteries and other components.

DE102025123584A1Pending Publication Date: 2025-12-31SUZUKI MOTOR CORP
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Patent Information

Application Number
DE102025123584
Authority / Receiving Office
DE · DE
Patent Type
Applications
Current Assignee / Owner
Filing Date
2025-06-17
Publication Date
2025-12-31

AI Technical Summary

Technical Problem

Existing vehicle body floor structures in electric and hybrid vehicles face challenges in utilizing the floor tunnel as a reinforcement structure while creating space for a battery, as the floor tunnel and cross element are separate and do not interact effectively.

Method used

A vehicle body floor structure where the floor tunnel projects upwards and extends longitudinally, intersecting with a floor transverse element, forming a high-strength configuration that allows the rear end of the tunnel to be extended or the transverse element to be positioned further forward, creating additional space for a battery or other components.

Benefits of technology

This configuration enhances vehicle rigidity and efficiently utilizes interior space by allowing the floor tunnel and transverse element to interact, providing additional space for batteries or other components like exhaust systems, while maintaining structural integrity.

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Abstract

[Problem to be solved] The creation of a vehicle body floor structure that is advantageous in terms of the use of a remaining floor tunnel section as a reinforcement element in conjunction with a floor transverse element, while simultaneously providing a battery accommodation space. [Solution] A vehicle body floor structure comprises a floor tunnel that terminates at a rear end in the center in the vehicle width direction, and a floor transverse element with one end in the vehicle width direction that is connected to a body frame part, wherein the rear end of the floor tunnel is composed of a tunnel back section which includes a tunnel rear wall extending between a front edge section connected to an upper wall and a side wall of the floor tunnel, and a side edge section and a rear edge section connected to the floor panel, wherein in the floor transverse element a cutout larger than a cross-section intersecting the tunnel back section is formed in a front wall of the floor transverse element to cross above the tunnel back section and extend in the vehicle width direction.
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