EP3768576A1 - Partie avant d'un vehicule presentant une stabilite amelioree en cas de choc avant - Google Patents
Partie avant d'un vehicule presentant une stabilite amelioree en cas de choc avantInfo
- Publication number
- EP3768576A1 EP3768576A1 EP19717511.0A EP19717511A EP3768576A1 EP 3768576 A1 EP3768576 A1 EP 3768576A1 EP 19717511 A EP19717511 A EP 19717511A EP 3768576 A1 EP3768576 A1 EP 3768576A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gearbox
- vehicle
- engine
- front part
- shock absorber
- 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.)
- Withdrawn
Links
- 239000006096 absorbing agent Substances 0.000 claims abstract description 32
- 230000035939 shock Effects 0.000 claims abstract description 30
- 239000007769 metal material Substances 0.000 claims description 6
- 239000002131 composite material Substances 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 3
- 230000004888 barrier function Effects 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000000368 destabilizing effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K5/04—Arrangement or mounting of internal-combustion or jet-propulsion units with the engine main axis, e.g. crankshaft axis, transversely to the longitudinal centre line of the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F7/00—Vibration-dampers; Shock-absorbers
- F16F7/12—Vibration-dampers; Shock-absorbers using plastic deformation of members
- F16F7/121—Vibration-dampers; Shock-absorbers using plastic deformation of members the members having a cellular, e.g. honeycomb, structure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K5/00—Arrangement or mounting of internal-combustion or jet-propulsion units
- B60K2005/003—Arrangement or mounting of internal-combustion or jet-propulsion units the internal combustion or jet propulsion unit is arranged between the front and the rear axle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
- B60Y2306/00—Other features of vehicle sub-units
- B60Y2306/01—Reducing damages in case of crash, e.g. by improving battery protection
Definitions
- the present invention relates to a front part of a vehicle which comprises a motor compartment in which is positioned a motor and a gearbox which has improved stability in case of front impact.
- It relates more particularly to a gearbox which is positioned laterally to the engine, with the front wall of the gearbox which is positioned behind the front wall of the engine, defining a volume at least partially empty.
- a front part of a vehicle which comprises an engine compartment in which is positioned a motor and a gearbox, where the gearbox is positioned laterally to the engine, with the front wall of the gearbox. which is positioned behind the front wall of the engine, defining a volume at least partially empty.
- one of the tests is to project the vehicle at high speed against a deformable barrier, the goal being that the deformable portion of the barrier is deformed in the most homogeneous manner possible, without hard spots.
- the barrier switches to the side of the gearbox, destabilizing the front structure of the vehicle, modifying its impact resistance and creating a non deformation.
- the present invention aims to overcome these problems and to provide a front part of a vehicle which comprises a motor compartment in which is positioned a motor and a gearbox, which allows laterally stabilize such a shock against a deformable barrier without degrade a shock against a rigid wall.
- the subject of the invention is a front part of a vehicle which comprises an engine compartment in which is positioned a motor and a gearbox, the gearbox being positioned laterally to the engine along the same alignment oriented along the transverse axis of the vehicle, with the front wall of the gearbox which is positioned behind the front wall of the engine, defining a volume at least partially empty, such that it comprises a shock absorber positioned in front of the front wall the gearbox, the absorber being adapted to at least partially fill said volume.
- the absorber extends over a height greater than the height of the gearbox, said height of the absorber remaining lower than the height of the engine.
- a reinforcing element may preferably be positioned between an upper wall of the gearbox and the part of the absorber which extends above the gearbox.
- the reinforcing element is formed in a metallic material, preferably steel and has a thickness of between 2 mm and 3 mm, preferably said thickness is 2.5 mm.
- the shock absorber comprises a honeycomb structure which comprises cells.
- the cells are open at both ends and are oriented in the longitudinal direction of the vehicle.
- the cells have side walls whose thickness is between 2 and 4 mm, preferably said thickness being 3 mm.
- the cells are formed of a soft metal material such as aluminum, a plastic material or composite materials.
- the shock absorber may have a width along the longitudinal axis of the vehicle which is between 150 and 250 mm, said width preferably being 200 mm and the shock absorber may have a height along the vertical axis of the vehicle which is between 250 and 350 mm, said width preferably being 300 mm.
- the present invention also relates to a vehicle which comprises such a front part.
- Figure 1 shows a partial view of the front part of a vehicle, which comprises a motor compartment in which is positioned a motor and a gearbox;
- Figures 2 and 3 show perspective views of the motor assembly and gearbox as positioned in the engine compartment and which comprises, according to the invention, a shock absorber.
- the term front designates a positioning towards the front of the vehicle and the term back designates a positioning towards the rear of the vehicle.
- the longitudinal axis corresponds to the normal axis of circulation of the vehicle and the axis transverse to an axis perpendicular to the longitudinal axis included in the plane of movement of the vehicle.
- FIG. 1 represents a partial view of the front part 1 of a vehicle, which comprises a motor compartment 2 in which an engine is positioned.
- the gearbox 4 is positioned laterally to the engine 3, in the same alignment aligned along the transverse axis of the vehicle.
- the gearbox 4 has a smaller volume than the engine 4 so that the spacing left free around the gearbox is generally used to position different components.
- Above the gearbox 4 is for example positioned electronic boxes 5. According to the invention, such a spacing is also present in front of the gearbox
- Figures 2 and 3 show perspective views of the engine assembly 3 and gearbox 4 as positioned in the engine compartment and which comprises, according to the invention, a shock absorber 6.
- the transverse axis of the vehicle is represented by the Y axis
- the longitudinal axis of the vehicle is represented by the X axis
- the Z axis represents the vertical axis of the vehicle.
- the gearbox 4 is shown positioned laterally to the engine 3, along the same transverse axis Y.
- the engine 3 and the gearbox 4 are incompressible in the event of an impact on the front of the vehicle.
- On the front wall 31 of the engine 3 are positioned various accessories of the engine 3 such as the turbocharger 33, the pollution control device 34, the compressor of the air conditioning 35 or the alternator 36.
- the shock absorber 6 is positioned in front of the front wall 41 of the gearbox 4 so as to make up all or part of the dimensioning difference along the longitudinal axis X between the foremost part of the engine 3 and engine accessories 3 and the front wall 41 of the gearbox 4.
- the absorber 6 also has a height adapted for an upper portion 61 of the shock absorber 6 extends above the box of 4 speeds up to a height that is substantially that of the engine 4. Such a height depends on the size of the engine 3 and is generally between 250 and 350 mm. More particularly, in the exemplary embodiment as shown, the height of the shock absorber is taken substantially equal to 300 mm.
- a holding device 7 forms a reinforcement for the upper part 61 of the shock absorber 6.
- the holding device 7 has a square shape and is interposed between the upper part of the gearbox 3 and the upper part 61 of the shock absorber 6.
- the holding device 7 is generally made of metal with a thickness of the walls which is between 2 and 3 mm, allowing it to withstand shock by bending, but without breaking.
- the holding device 7 is made of steel and has a thickness of these walls of 2.5 mm. At the end of shock, it may still be interesting that the holding device 7 bends without breaking, which allows a metal such as steel.
- the holding device 7 is screwed onto the gearbox 3.
- the shock absorber 6, depending on the size of the gearbox 6, has a width along the transverse axis Y which is between 150 and 250 mm. In the exemplary embodiment, the width of the shock absorber is about 200 mm.
- the shock absorber 6 comprises a honeycomb structure with cavities 62 which are oriented along the longitudinal axis X.
- the cells 62 have walls whose thickness is between 2 and 4 mm and may be made of different materials. such as soft metal materials such as aluminum, plastics or composite materials. In the exemplary embodiment, the thickness is 3 mm and is made of composite material which comprises short fibers.
- the shock absorber 6 forms with the engine 3, a homogeneous assembly that best distributes the deformation of the parts of the vehicle that come in contact with this set.
- the shock absorber 6 must have good resistance to impact against an obstacle that deforms like a barrier, precisely to homogenize the deformation of the barrier, but must be able to crash in the case of an impact against a rigid structure like a wall. Such behavior is suitable for soft metal materials such as aluminum, plastics or composite materials.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Body Structure For Vehicles (AREA)
- Vibration Dampers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1852496A FR3079183B1 (fr) | 2018-03-22 | 2018-03-22 | Partie avant d’un vehicule presentant une stabilite amelioree en cas de choc avant |
| PCT/FR2019/050454 WO2019180337A1 (fr) | 2018-03-22 | 2019-02-27 | Partie avant d'un vehicule presentant une stabilite amelioree en cas de choc avant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3768576A1 true EP3768576A1 (fr) | 2021-01-27 |
Family
ID=62067736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19717511.0A Withdrawn EP3768576A1 (fr) | 2018-03-22 | 2019-02-27 | Partie avant d'un vehicule presentant une stabilite amelioree en cas de choc avant |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3768576A1 (fr) |
| FR (1) | FR3079183B1 (fr) |
| WO (1) | WO2019180337A1 (fr) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3184337A1 (fr) * | 2015-12-23 | 2017-06-28 | Volvo Car Corporation | Dispositif de découplage de rotation de moteur et boîte de vitesses |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5819408A (en) * | 1996-07-10 | 1998-10-13 | Xcorp, Inc. | Recyclable, low cost, collision-resistant automobile chassis and body |
| JPH115566A (ja) * | 1997-06-16 | 1999-01-12 | Nissan Motor Co Ltd | 自動車のフロアトンネル補強部材 |
| WO2014173476A1 (fr) * | 2013-04-24 | 2014-10-30 | Daimler Ag | Dispositif de protection d'un avant-corps de coque de véhicule automobile |
| DE102015112506A1 (de) * | 2015-07-30 | 2017-02-02 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Frontendmodul |
-
2018
- 2018-03-22 FR FR1852496A patent/FR3079183B1/fr not_active Expired - Fee Related
-
2019
- 2019-02-27 WO PCT/FR2019/050454 patent/WO2019180337A1/fr not_active Ceased
- 2019-02-27 EP EP19717511.0A patent/EP3768576A1/fr not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3184337A1 (fr) * | 2015-12-23 | 2017-06-28 | Volvo Car Corporation | Dispositif de découplage de rotation de moteur et boîte de vitesses |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019180337A1 (fr) | 2019-09-26 |
| FR3079183A1 (fr) | 2019-09-27 |
| FR3079183B1 (fr) | 2020-02-21 |
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| 17P | Request for examination filed |
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