Front wall for a motor vehicle

Patent metadata

Field	Value
Publication number	US-2025091655-A1
Application number	US-202418884443-A
Country	US
Kind code	A1
Filing date	Sep 13, 2024
Priority date	Sep 14, 2023
Publication date	Mar 20, 2025
Grant date	—

Abstract

A front wall for a motor vehicle, which has a partition wall to an engine compartment located at the front in the longitudinal direction (x) of the motor vehicle, wherein the partition wall is oriented in the installed state in the vertical direction (z) of the motor vehicle and, connected to it in one piece, has a front region of a footwell metal sheet, wherein the footwell metal sheet runs at least in portions in the longitudinal direction (x) of the motor vehicle, the front wall being produced as a one-piece sheet-metal forming component, in particular in a single press stroke, characterized in that the footwell metal sheet has a greater wall thickness and/or tensile strength than the partition wall.

First claim

1 - 13 . (canceled)

14 . A front wall for a motor vehicle, the front wall comprising:
a partition wall to an engine compartment located at a front in a longitudinal direction of the motor vehicle, wherein the partition wall, in an installed state, is oriented in a vertical direction of the motor vehicle; and a footwell metal sheet, wherein the footwell metal sheet is oriented at least in portions in the longitudinal direction of the motor vehicle, and a front region of the footwell metal sheet is connected to the partition wall in one piece, wherein the front wall is a one-piece sheet-metal forming component formed in a single press stroke, wherein the footwell metal sheet has at least one of a greater wall thickness or a greater tensile strength than the partition wall, wherein the front wall has
a high-strength region which has a tensile strength greater than or equal to 1350 MPa, and
a soft region which has a tensile strength of less than 1000 MPa,
wherein a bead extending in a transverse direction of the motor vehicle comprises a transition between the partition wall and the footwell metal sheet, and wherein the bead is formed in a cross section in at least one of the longitudinal direction (x) or the vertical direction of the motor vehicle.

15 . The front wall according to claim 14 , wherein as the one-piece sheet-metal forming component is a hot-formed and press-cured component.

16 . The front wall according to claim 14 , wherein a region of the front wall has at least one of a forming geometry integrated in the region, an increased material thickness or a higher strength, such that the region is configured to function as a cross member.

17 . The front wall according to claim 14 , wherein a region of the front wall has at least one of a forming geometry integrated in the region, an increased material thickness or a higher strength such that the region is configured to function as a longitudinal member.

18 . The front wall according to claim 14 , wherein the soft regions re has a tensile strength of less than 850 MPa.

19 . The front wall according to claim 14 , further comprising:
a reinforcing patch applied in a region of the bead that extends in the transverse direction, a central or outer longitudinal bead of the front wall, or a wheel arch of the front wall.

20 . The front wall according to claim 14 , wherein the bead has a bead depth which corresponds to at least five times a wall thickness of a sheet-metal blank.

21 . The front wall according to claim 14 , wherein the tensile strength in a region of the bead is greater than 1,180 MPa.

22 . The front wall according to claim 14 , further comprising:
a patchwork metal sheet attached in a region of the bead, wherein the tensile strength in this region is greater than 980 MPa.

23 . The front wall according to claim 14 , wherein the footwell metal sheet is curved along multiple axes or in three dimensions on an outer side thereof in the transverse direction of the motor vehicle such that a wheel arch is formed at least in portions.

24 . The front wall according to claim 14 , wherein outer regions of the footwell metal sheet comprise a soft zone, with a tensile strength of less than 980 MPa, wherein and the outer regions have a width of less than 100 mm in the transverse direction of the motor vehicle.

25 . The front wall according to claim 14 , wherein the one-piece sheet-metal forming component comprises a coated steel component produced from a precoated steel alloy, wherein a precoating of the precoated steel alloy is an Al—Si coating, with a layer thickness between 15 and 40 μm.

26 . The front wall according to claim 14 , wherein the footwell metal sheet has a central tunnel with at least one central longitudinal bead and configuring a front longitudinal portion of a transmission tunnel.

Assignees

• Benteler Automobiltechnik Gmbh

Inventors

• Frost Georg
• Hielscher Christian
• Hitz Andreas
• Kaupmann Paul
• Lohberg Mathias
• Toelle Joern

Classifications

• B62D23/00

  Combined superstructure and frame, i.e. monocoque constructions ({having impact absorbing means B62D21/15; } superstructure {or monocoque structure} sub-units {or parts or details thereof} B62D25/00 {; characterised by the material thereof B62D29/00}) · CPC title

• B62D25/16

  Mud-guards or wings; Wheel cover panels (equipped with means for freeing wheels or tyres from foreign matter B60S) · CPC title

• B62D25/20

  Floors or bottom sub-units {(sub-frames for mounting engine or suspensions B62D21/11; drip trays F16N31/006)} · CPC title

• B62D25/08 Primary

  Front or rear portions {(sub-frames for mounting engine or suspensions B62D21/11)} · CPC title

• B21D53/88

  other parts for vehicles, e.g. cowlings, mudguards · CPC title