Chassis for a passenger car

Patent metadata

Field	Value
Publication number	US-11242089-B2
Application number	US-201716328585-A
Country	US
Kind code	B2
Filing date	Aug 24, 2017
Priority date	Aug 27, 2016
Publication date	Feb 8, 2022
Grant date	Feb 8, 2022

Abstract

A chassis for a passenger car includes two main longitudinal chassis beams which are connected to one another via a bumper cross member. A support arrangement extends between the two beams and is supported on a central tunnel. The support arrangement forms a load path in an event of a collision-related force being applied to the passenger car where above and/or below the support arrangement an installation space region is provided for accommodating a component or unit in need of protection. The support arrangement includes a strut which extends in a region of a center of the passenger car between the two beams and which forms a protective device which transmits impact forces forwards to the central tunnel. The strut has a first longitudinal section that is deformable in a targeted energy-absorbing manner and a second longitudinal section which functions as a rigid beam.

First claim

The invention claimed is:

1. A chassis for a passenger car, comprising:
two main longitudinal chassis beams which extend as far as a rear region of the passenger car and are connected to one another via a bumper cross member; and
a support arrangement which extends between the two main longitudinal chassis beams and which is supported on a central tunnel disposed in a protective zone of the chassis, wherein the support arrangement forms a load path in an event of a collision-related force being applied to the passenger car, wherein above and/or below the support arrangement an installation space region is provided for accommodating a component or unit in need of protection, and wherein the support arrangement includes a strut which extends in a region of a center of the passenger car between the two main longitudinal chassis beams and which forms a protective device which transmits impact forces forwards to the central tunnel in the event of the collision-related force being applied to the passenger car;
wherein the strut has a first longitudinal section that is deformable in a targeted energy-absorbing manner in the event of the collision-related force being applied to the passenger car and a second longitudinal section which functions as a rigid beam,
wherein the installation space region is provided separately from a passenger seat area of the passenger car, and
wherein the component or unit in need of protection is integrated with the passenger car.

2. The chassis as claimed in claim 1 , wherein at least the first longitudinal section of the strut is disposed in a region of a deformation zone.

3. The chassis as claimed in claim 1 , wherein the support arrangement includes, in a region of the protection zone, a plate element and/or a second strut which is of rigid and stiff design such that it withstands the collision-related force and passes the collision-related force on to the central tunnel.

4. The chassis as claimed in claim 1 , wherein the support arrangement includes force application introduction elements via which the collision-related force is introducible into a rear floor into a cross member and/or the central tunnel.

5. A chassis for a passenger car, comprising:
two main longitudinal chassis beams which extend as far as a rear region of the passenger car and are connected to one another via a bumper cross member;
a support arrangement which extends between the two main longitudinal chassis beams and which is supported on a central tunnel disposed in a protective zone of the chassis, wherein the support arrangement forms a load path in an event of a collision-related force being applied to the passenger car, wherein above and/or below the support arrangement an installation space region is provided for accommodating a component or unit in need of protection, and wherein the support arrangement includes a strut which extends in a region of a center of the passenger car between the two main longitudinal chassis beams and which forms a protective device which transmits impact forces forwards to the central tunnel in the event of the collision-related force being applied to the passenger car; and
a U-shaped support element which extends in a region of a rear structural element at an outer end of a deformation zone and in a region of the two main longitudinal chassis beams, wherein as viewed in a longitudinal direction of the passenger car, the U-shaped support element is disposed at least in sections in overlap with the installation space region arranged above the load path,
wherein the installation space region is provided separately from a passenger seat area of the passenger car, and
wherein the component or unit in need of protection is integrated with the passenger car.

6. The chassis according to claim 5 , wherein the U-shaped support element has a transverse element arranged at a height of, and in overlap with, the installation space region and has branches running in a region of the two main longitudinal chassis beams and connected to a respective one of the two main longitudinal chassis beams.

7. The chassis according to claim 6 , wherein the transverse element, when viewed in the longitudinal direction of the passenger car, is disposed at a level of a transverse beam forming a loading edge for a boot.

Assignees

• Daimler Ag

Inventors

• Wirsing Michael
• Hildebrand Matthias
• Freund Andreas
• Gere Peter
• Aktay Levent
• Opelka Jan-Mark
• Kuemmerlen Peter
• Kallfass Dietmar
• Spremberg Jens
• Zimmermann Joerg
• Edele Dieter
• Dingfelder Steffen
• Mehrholz Ralf
• Hirzel Marcus
• Oehm Bianca
• Hertfelder Marie-Louise

Classifications

• B60K1/04

  of the electric storage means for propulsion · CPC title

• B60Y2306/01

  Reducing damages in case of crash, e.g. by improving battery protection · CPC title

• B62D21/152 Primary

  Front or rear frames · CPC title

• B62D25/2027

  the subunits being rear structures · CPC title

• B60K2001/0416

  Arrangement in the rear part of the vehicle · CPC title