Untere Fahrzeugkarosseriestruktur eines Fahrzeugs

Details

Veröffentlichungs-Nr.

EP4793139

Anmeldetag

26. Januar 2026

Veröffentlichung

19. August 2026

Rechtsraum

EP

Abstract

[Problem] To increase the amount of energy absorption of a side sill reinforcement against side collision energy. [Means for Solution] A lower vehicle-body structure 1 of a vehicle 100 includes a floor panel 2, side sills 3, and reinforcements 30 disposed in the side sills 3, and extending in the front-rear direction. The reinforcement 30 includes an upper wall 31, a lower wall 32, an outer wall 33, and an inner wall 34. The reinforcement 30 further includes one or a plurality of vertical walls 35 extending in the front-rear direction between the outer wall 33 and the inner wall 34, and connecting the upper wall 31 and the lower wall 32 together, and an inner space S of the reinforcement 30 is partitioned in the vehicle width direction by the vertical walls 35 in such a way as to divided into a plurality of closed cross-section portions S1 to S3. At least one of the upper wall 31 or the lower wall 32 has a groove 36 in at least one of positions at which the vertical walls 35 are connected, the groove 36 extending in the front-rear direction over the entire length of the reinforcement 30.

Anmelder

Firma

MAZDA MOTOR CORPORATION

Land

🇯🇵 Japan