CN110494346A - In the intermediate beam for vehicle rear lower structure that rear portion includes stiffening profile - Google Patents
In the intermediate beam for vehicle rear lower structure that rear portion includes stiffening profile Download PDFInfo
- Publication number
- CN110494346A CN110494346A CN201880023868.XA CN201880023868A CN110494346A CN 110494346 A CN110494346 A CN 110494346A CN 201880023868 A CN201880023868 A CN 201880023868A CN 110494346 A CN110494346 A CN 110494346A
- Authority
- CN
- China
- Prior art keywords
- intermediate beam
- stiffening profile
- vehicle
- perforation
- walls
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/15—Understructures, i.e. chassis frame on which a vehicle body may be mounted having impact absorbing means, e.g. a frame designed to permanently or temporarily change shape or dimension upon impact with another body
- B62D21/152—Front or rear frames
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The present invention relates to a kind of vehicles (1) including rear lower structure (3), the rear lower structure has two curb girders (5 that the longitudinal direction along vehicle (1) orients, 7), intermediate beam (15) are arranged in parallel between two curb girders, the intermediate beam (15) has the form of hollow material to form centre gangway (21), the centre gangway longitudinally runs through intermediate beam and has front and rear along the longitudinal direction of vehicle (1), the salient of the vehicle (1) is, intermediate beam (15) includes the stiffening profile (23) for being nested in the rear part and being fixed to intermediate beam.The invention further relates to a kind of such intermediate beams (15).
Description
Technical field
The present invention relates to vehicle rear lower structures, and relate more particularly to the intermediate beam of this substructure.
Background technique
The rear lower structure of vehicle is to support the substructure of rear portion.The rear lower structure is usually by two curb girder structures
At the two curb girders extend in the longitudinal direction of the vehicle and are connected to each other by least two crossbeams.It is limited by the two crossbeams
Fixed and support vehicle space generally corresponds to luggage case, but can also correspond to small-sized as described in document EP0723904
The loading space of platform truck type of vehicle.Rear lower structure is usually closed by bottom plate in bottom.
When colliding the rear portion of vehicle, rear lower structure and especially rear cross will be towards front Direction distortions.It is this
Deformation will lead to element intrusion cockpit, this, which may be injured, is sitting in subsequent passenger.It, can be under rear in order to limit this intrusion
Rearward collision absorption plant is set, and the rearward collision absorption plant usually may include intermediate beam, setting exists at portion's structure
Between two curb girders and connect front beam and rear cross beam.The intermediate beam absorbs the energy of collision by linear deformation.
This device for example shows in document US6206461 and including intermediate beam, and the front end of the intermediate beam is in lateral side
It is gradually expanded upwards, and rear end expands step by step.The configuration of the intermediate beam ensures its excellent support to each crossbeam.
Document EP1424266 describes a kind of anticollision case, against the rear end of intermediate beam and bar carrier crossbeam.
The anticollision case, which has the form of " collision energy absorbing box " and absorbed by linear deformation, to be impacted.The function of the anticollision case is,
Before the stress for coming from behind collision reaches intermediate beam, the stress is absorbed in advance.
Document KR101006053 describes the damper of " collision energy absorbing box " type, by fixing by fixed flange
Existing inside damper to expand aluminum foam, the damper is for preventing the abnormal sound when it is deformed.
It has been noted that, when rearward collision occurs, intermediate beam will not correctly be kept just on certain stress directions
Position, especially will not correctly be held in place in the vertical direction, and vertical stress is the largest.Therefore, intermediate beam may be
The rear part section raises, to reduce its sink effect to rearward collision energy.
Therefore, it is worth noting that, a solution is found, for keeping intermediate beam relative to rear lower structural beams
Position.
Summary of the invention
The present invention is directed to solve the problems, such as that current techniques are of interest by proposing the new rear lower structure intermediate beam of one kind
At least one of, which more preferably controls in linear deformation.
For this purpose, the rear lower structure has along vehicle the present invention relates to a kind of vehicle including rear lower structure
Two curb girders of longitudinal direction orientation, are arranged in parallel with intermediate beam between two curb girders, which has hollow material
To form centre gangway, which longitudinally runs through the intermediate beam and has front and rear along the vehicle longitudinal direction form,
The salient of the vehicle is that the intermediate beam includes the stiffening profile for being nested in the rear part and being fixed to the intermediate beam.
According to specific embodiment, stiffening profile may include the following independent spy used using or according to possible any combination
One or the other in sign:
Stiffening profile is fixed to the side wall of intermediate beam.
The height of stiffening profile is small less than or equal to the length of the half of intermediate depth of beam and/or stiffening profile
In or equal to intermediate beam length half.
The height of stiffening profile is less than or equal to the half of intermediate depth of beam, and stiffening profile is arranged in intermediate beam
By-level face below.
Stiffening profile have is parallel to intermediate beam setting flat form of tubes, or be parallel to intermediate beam setting
Downwardly open U-section form.Preferably, intermediate beam and stiffening profile two all have the shape of downwardly open U-section
Formula.
Stiffening profile includes at least upper wall and two side walls, and the salient of the vehicle is, which includes extremely
A few perforation, the perforation are cut at least one of wall of the stiffening profile.Preferably, at the edge for connecting two walls
Place, at least one of the perforation or the perforation are cut on the two walls.It is further preferred that one in two walls be on
Wall, and the other is one in the two side walls of stiffening profile.
Stiffening profile is fixed by welding to intermediate beam.
Preferred embodiment in accordance with the present invention, intermediate beam include at least upper wall and two side walls, the salient of the vehicle
It is, at the intermediate beam rear portion around stiffening profile, intermediate beam includes at least one cut out at least one of its wall
A perforation.Preferably, in the edge for connecting two walls, at least one of the perforation or the perforation are cut on the two walls
It opens.It is further preferred that one in two walls is roof, and the other is one in the two side walls of intermediate beam.
By reading the restriction just provided it is understood that the present invention proposes after stiffening profile is fixed on intermediate beam
The internal rigidity to reinforce intermediate beam in this region in end.Since intermediate beam of the invention has asymmetric linear deformation energy
Power, therefore it is greater than the linear deformation ability at rear portion in the linear deformation ability of intermediate beam front.Therefore, in the rearward collision phase
Between, the presence of stiffening profile will lead to the increase of the stress at intermediate beam rear portion, and then intermediate beam will be deformed along its length to absorb
Stress.This stress increase allows to control and guide the deformation of intermediate beam, to hold it in during intermediate beam deformation suitable
When position.
When stiffening profile is closer to the lower part of intermediate beam rather than when top, which allows to draw received stress
It leads towards bottom plate, and facilitates the lifting that limitation even avoids intermediate beam.There is perforation at stiffening profile and intermediate beam
The stiffening profile and intermediate beam is allowed to deform and participate in stress absorption as stress increases, to bring dual function for them
Energy.When stiffening profile and intermediate beam have the U-section form opened downwards, they can be more effective to the absorption of stress, and
And the almost impossible and contacts baseplate of their own deformation.
The invention further relates to a kind of rear lower structure intermediate beams of vehicle as described above.
Detailed description of the invention
By reading the description being given as examples referring to the drawings, being better understood with the present invention and making other aspects
More clearly show with advantage, in the accompanying drawings:
- Fig. 1 shows the top rearview of vehicle according to the invention, which includes and the associated centre of reinforcer
Beam；
Fig. 2 shows the rearviews of intermediate beam according to the present invention.
Specific embodiment
In the following description, term " includes " is synonymous with "comprising", and does not limit term permission in vehicle or the vehicle
There are other elements in related intermediate beam.It should be understood that term " includes " include term " by ... form ".Term
" preceding " and " rear " and direction " longitudinal direction " and " transverse direction " will understand relative to the general direction of vehicle.Term " low " and "lower" table
Show respectively than term "high" and "upper" closer to ground.In different drawings, identical appended drawing reference indicates same or similar
Element.
With reference first to Fig. 1, it illustrates the top rearviews of vehicle according to the invention 1, and it illustrates rear lowers
Structure 3, rear lower structure 3 include two curb girders (5,7) oriented along the longitudinal direction of vehicle 1.The two beams (5,7) pass through two
A crossbeam (9,11) is connected to each other, and one in the two crossbeams is located near the rear end of two curb girders (5,7), and the crossbeam is under
Referred to herein as rear cross beam 11, and another crossbeam is arranged relatively forward, which is hereinafter referred to as front beam 9.Shown in
In example, the space for being limited and being supported by two curb girders (5,7) and two crossbeams (9,11) corresponds to the luggage case of vehicle 1.It should
It is closed in bottom by bottom plate 13 in space.
Intermediate beam 15 is arranged between two curb girders (5,7) and is parallel to the extension of the two curb girders (5,7).Intermediate beam 15 wraps
The front end for being connected to front beam 9 is included, and is connected to the rear end of rear cross beam 11.Intermediate beam further includes rear portion and front, the rear portion
Refer to the intermediate lateral plane that intermediate beam is extended to from the rear end of intermediate beam, which extends to intermediate beam from the front end of intermediate beam
Intermediate lateral plane.In general, intermediate beam 15 is profile, includes upper wall 17 along vertical axis and optionally lower wall (can not
See).The intermediate beam 15 further includes two side walls 19, respectively faces the side of vehicle 1, that is, is respectively faced in curb girder (5,7)
One.In the rearview of intermediate beam 15 shown in Fig. 2, it can be seen that since the intermediate beam 15 includes longitudinal through intermediate beam
15 centre gangway 21, therefore intermediate beam 15 is hollow.
The focus of vehicle 1 is, which includes behind stiffening profile 23 in portion, and the stiffening profile 23 is fixed
To at least one of the wall of the centre gangway 21 of the intermediate beam 15.In the undeformed stress to absorb rearward collision of intermediate beam 15
Before, the presence of this stiffening profile 23 allows to form stress when rearward collision occurs for vehicle 1 and increase.Therefore, intermediate beam
Lifting risk becomes smaller and is preferably kept in its deformation.
The size of embodiment according to Fig.2, stiffening profile 23 is less than intermediate beam 15.Therefore, the height of stiffening profile 23
The height and length of intermediate beam 15 are respectively smaller than with length.Since stiffening profile 23 will cause stress to increase in rearward collision,
It is preferred that these sizes are less than the size of intermediate beam 15, in order to avoid the rigidity of intermediate beam 15 is excessively increased.Stiffening profile 23
Length can be less than or equal to intermediate beam 15 length half, or less than or equal to intermediate beam 15 length three/
One, or a quarter of the length less than or equal to intermediate beam 15.
According to an embodiment of the invention, the height of stiffening profile 23 be less than or equal to intermediate beam 15 height two/
One.In addition, the lower section of the median horizontal plane of intermediate beam 15 is arranged in stiffening profile 23, with the bottom of closer intermediate beam 15
It is not its top.This set allows that the received stress of institute is directed towards ground in collision, i.e., towards bottom plate.Towards ground
The received stress of guidance institute allows to participate in when intermediate beam deforms to limit the lifting for even preventing intermediate beam.
Stiffening profile 23 can be fixed to intermediate beam 15 by any way.For example, the stiffening profile 23 can by welding or
It is threadedly coupled to fix, it is preferable that the stiffening profile 23 is by being welded and fixed.Centre is supplied to by stiffening profile 23 in order to control
The rigidity of beam 15, it is preferable that stiffening profile 23 is not attached to all walls of intermediate beam 15.According to embodiment, stiffening profile 23 is solid
Surely the side wall of intermediate beam 15 is arrived.
Preferably, stiffening profile 23 has and the same or similar form of intermediate beam 15.According to embodiment, stiffening profile 23
Form with flat tube, the flat tube are parallel to the positioning of intermediate beam 15.
According to alternate embodiment, stiffening profile 23 has the form of U-section, and the U-section is downwardly open and is nested in
In intermediate beam 15.Therefore, as shown in Fig. 2, stiffening profile 23 has upper wall 25 and two side walls 27.Preferably, intermediate beam 15
Form with U-section, the U-section is downwardly open, so that it does not include lower wall.With the structure being closed on all sides
Make and compare, intermediate beam 15 and stiffening profile 23 this construction improves the deformation extents of these elements and energy absorption degree.
Opening down setting limitation is even that of avoiding what intermediate beam 15 and/or stiffening profile 23 were contacted in its deformation with bottom plate 13
Risk.
According to an embodiment of the invention, intermediate beam 15 includes at least one perforation 29, which is surrounding stiffening profile
It is cut in one in the wall at the rear portion of 23 intermediate beam 15, so as to form reduced stiffness region.In this way, after intermediate beam 15
Portion is also deformable to absorb stress, to make it have dual function.Preferably, at least one of the perforation 29 or perforation 29
It is centrally positioned at the longitudinal edge of beam 15, which connects two walls.It is further preferred that especially when intermediate beam has
When having the form of downwardly open U-section, which is top edge, one in upper wall 17 and two side walls 19 it
Between form boundary.Since intermediate beam 15 is bigger in its edge rigidity, compared with cutting out the perforation in wall, at this
The bigger region of reduced stiffness degree is formed and there is perforation 29 in edge.When there are multiple perforation 29, preferably it is symmetrical arranged
In the two sides of the longitudinal axis of intermediate beam 15, to form pairs of perforation 29.
Certainly, intermediate beam may also include other perforation, which does not cut out at the rear portion around stiffening profile.Especially
Ground, intermediate beam can in front include at least one perforation, the one or more be perforated with conducive to intermediate beam linear deformation simultaneously
Participate in the stress absorption ability of intermediate beam.
Similar to just be directed to intermediate beam 15 wall described in and preferred embodiment in accordance with the present invention, stiffening profile 23
Including at least one perforation 31, which cuts out in one in the wall of stiffening profile 23.Preferably, it the perforation 31 or wears
At least one of hole 31 is located at the longitudinal edge of stiffening profile 23, which connects two walls.Further preferably
Ground, especially when stiffening profile 23 has the form of downwardly open U-section, which is top edge, in upper wall
25 and two side walls 27 in one between form boundary.In order to cooperate the deformation of intermediate beam 15, intermediate beam 15 and stiffening profile
23 one or more perforation (29,31) are located at same position on the longitudinal direction of vehicle 1.When there are multiple perforation 31
When, the two sides of the longitudinal axis of stiffening profile 23 are symmetricly set on, preferably to form pairs of perforation 31.
Claims (10)
1. one kind includes the vehicle (1) of rear lower structure (3), the rear lower structure has along the longitudinal direction side of the vehicle (1)
It to two curb girders (5,7) of orientation, is arranged in parallel between described two curb girders intermediate beam (15), intermediate beam (15) tool
There is the form of hollow material to be formed centre gangway (21), the centre gangway longitudinally runs through the intermediate beam and along the vehicle
(1) longitudinal direction has front and rear, which is characterized in that the intermediate beam (15) includes being nested in the rear part and being fixed to institute
State the stiffening profile (23) of intermediate beam.
2. vehicle (1) according to claim 1, which is characterized in that the stiffening profile (23) is fixed to the intermediate beam
(15) side wall (19).
3. vehicle (1) according to claim 1 or 2, which is characterized in that the height of the stiffening profile (23) is less than or waits
In the half of the height of the intermediate beam (15), and/or, the length of the stiffening profile (23) is less than or equal in described
Between beam (15) length half.
4. vehicle (1) according to any one of claim 1 to 3, which is characterized in that the height of the stiffening profile (23)
Less than or equal to the half of the height of the intermediate beam (15), also, the stiffening profile (23) is arranged in the intermediate beam
(15) below by-level face.
5. vehicle (1) according to any one of claim 1 to 4, which is characterized in that the stiffening profile (23) has flat
The flat form of tubes that row is arranged in the intermediate beam (15), or have and be parallel to the downwardly open of the intermediate beam (15) setting
U-section form, it is preferable that the intermediate beam (15) and the stiffening profile (23) two all have downwardly open U-shaped
The form of profile.
6. vehicle (1) according to any one of claim 1 to 5, the intermediate beam (15) include at least upper wall (17) and
Two side walls (19), which is characterized in that at the intermediate beam rear portion around the stiffening profile (23), the intermediate beam
It (15) include at least one perforation (29) cut out at least one of its wall (17,19).
7. vehicle according to claim 6, which is characterized in that described in the edge for connecting described two walls (17,19)
At least one of perforation or the perforation (31) are cut on described two walls (17,19), it is preferable that in described two walls
One is the roof (17), and the other is one in the two side walls (19) of the intermediate beam (15).
8. vehicle (1) according to any one of claim 1 to 7, the stiffening profile (23) includes at least upper wall (25)
With two side walls (27), which is characterized in that the stiffening profile (23) includes at least one perforation (31), and the perforation is described
It is cut at least one of wall (25,27) of stiffening profile, it is preferable that in the edge for connecting described two walls (25,27),
At least one of the perforation or the perforation (31) are cut on described two walls (25,27).
9. vehicle (1) according to any one of claim 1 to 8, which is characterized in that the stiffening profile (23) passes through weldering
It connects and is fixed to the intermediate beam (15).
10. a kind of intermediate beam (15) of the rear lower structure (3) of vehicle (1), the vehicle is according to claim 1 to any in 9
Described in.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1752990 | 2017-04-06 | ||
| FR1752990A FR3064969B1 (en) | 2017-04-06 | 2017-04-06 | CENTRAL BEAM FOR REAR VEHICLE FRAME COMPRISING IN PART REAR A PROFILE OF REINFORCEMENT |
| PCT/FR2018/050503 WO2018185388A1 (en) | 2017-04-06 | 2018-03-06 | Central beam for a vehicle rear chassis comprising a reinforcing profiled section in the rear part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110494346A true CN110494346A (en) | 2019-11-22 |
Family
ID=58779223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880023868.XA Pending CN110494346A (en) | 2017-04-06 | 2018-03-06 | In the intermediate beam for vehicle rear lower structure that rear portion includes stiffening profile |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3606805A1 (en) |
| CN (1) | CN110494346A (en) |
| FR (1) | FR3064969B1 (en) |
| MA (1) | MA49027A (en) |
| WO (1) | WO2018185388A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3136735A1 (en) | 2022-06-16 | 2023-12-22 | Psa Automobiles Sa | spar with folding initiation for motor vehicle |
| FR3142737A1 (en) * | 2022-12-01 | 2024-06-07 | Psa Automobiles Sa | Vehicle comprising a central rear longitudinal reinforcement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911971A (en) * | 1982-07-12 | 1984-01-21 | Mazda Motor Corp | Rear vehicle body structure of automoble |
| US6206461B1 (en) * | 1998-07-01 | 2001-03-27 | Daimlerchrysler Ag | Bottom structure for a self-supporting frame body of a motor vehicle |
| DE102004061707A1 (en) * | 2004-12-22 | 2006-07-13 | Daimlerchrysler Ag | Vehicle body has additional load routes provided in lower long member between cross members to transfer crash impact forces |
| CN101332837A (en) * | 2007-06-28 | 2008-12-31 | 本田技研工业株式会社 | Vehicle body structure |
| EP2767458A1 (en) * | 2013-02-14 | 2014-08-20 | Peugeot Citroën Automobiles Sa | Floor of rear luggage compartment for a motor vehicle, comprising a reinforced beam |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5507522A (en) | 1994-03-03 | 1996-04-16 | The Budd Company | Hybrid frame rail |
| DE10255968A1 (en) | 2002-11-29 | 2004-06-09 | Adam Opel Ag | Rear-side base structure and rear-side impact limitation system for a motor vehicle |
| KR101006053B1 (en) | 2008-08-26 | 2011-01-10 | 주식회사 성우하이텍 | Crash box in automotive bumper system |
-
2017
- 2017-04-06 FR FR1752990A patent/FR3064969B1/en active Active
-
2018
- 2018-03-06 MA MA049027A patent/MA49027A/en unknown
- 2018-03-06 WO PCT/FR2018/050503 patent/WO2018185388A1/en unknown
- 2018-03-06 EP EP18712955.6A patent/EP3606805A1/en not_active Withdrawn
- 2018-03-06 CN CN201880023868.XA patent/CN110494346A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5911971A (en) * | 1982-07-12 | 1984-01-21 | Mazda Motor Corp | Rear vehicle body structure of automoble |
| US6206461B1 (en) * | 1998-07-01 | 2001-03-27 | Daimlerchrysler Ag | Bottom structure for a self-supporting frame body of a motor vehicle |
| DE102004061707A1 (en) * | 2004-12-22 | 2006-07-13 | Daimlerchrysler Ag | Vehicle body has additional load routes provided in lower long member between cross members to transfer crash impact forces |
| CN101332837A (en) * | 2007-06-28 | 2008-12-31 | 本田技研工业株式会社 | Vehicle body structure |
| EP2767458A1 (en) * | 2013-02-14 | 2014-08-20 | Peugeot Citroën Automobiles Sa | Floor of rear luggage compartment for a motor vehicle, comprising a reinforced beam |
Also Published As
| Publication number | Publication date |
|---|---|
| EP3606805A1 (en) | 2020-02-12 |
| FR3064969B1 (en) | 2019-05-03 |
| FR3064969A1 (en) | 2018-10-12 |
| MA49027A (en) | 2020-02-12 |
| WO2018185388A1 (en) | 2018-10-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191122 |
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| RJ01 | Rejection of invention patent application after publication |