FR3143447A1 - REINFORCED TILTING LOWER BODY FOR MOTOR VEHICLES - Google Patents
REINFORCED TILTING LOWER BODY FOR MOTOR VEHICLES Download PDFInfo
- Publication number
- FR3143447A1 FR3143447A1 FR2213508A FR2213508A FR3143447A1 FR 3143447 A1 FR3143447 A1 FR 3143447A1 FR 2213508 A FR2213508 A FR 2213508A FR 2213508 A FR2213508 A FR 2213508A FR 3143447 A1 FR3143447 A1 FR 3143447A1
- Authority
- FR
- France
- Prior art keywords
- reinforcing element
- underbody
- auxiliary batteries
- tilting
- batteries
- 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
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 25
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 description 7
- 230000004308 accommodation Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
Classifications
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- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- 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
- B62D21/157—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 for side impacts
-
- 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
- B62D25/02—Side panels
- B62D25/025—Side sills thereof
-
- 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
- B62D25/10—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles
- B62D25/105—Bonnets or lids, e.g. for trucks, tractors, busses, work vehicles for motor cars
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0405—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion characterised by their position
- B60K2001/0438—Arrangement under the floor
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0455—Removal or replacement of the energy storages
- B60K2001/0461—Removal or replacement of the energy storages from the side
-
- 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
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
- B60K2001/0455—Removal or replacement of the energy storages
- B60K2001/0488—Removal or replacement of the energy storages with arrangements for pivoting
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
- Body Structure For Vehicles (AREA)
Abstract
L'invention concerne un bas de caisse pour l’implantation de batteries d’appoint dans un véhicule automobile à motorisation électrique, ledit bas de caisse comprenant une paroi extérieure (1), une doublure intérieure (3) délimitant au moins un logement pour les batteries d’appoint, une articulation (4) assurant le basculement du bas de caisse entre une position haute de fermeture où il s’étend dans le prolongement de la caisse (6) et une position basse d’ouverture et des moyens de verrouillage (5) du bas de caisse dans sa position de fermeture, caractérisé en ce qu’il comprend, en outre, un élément de renfort (2) monté de façon intercalaire entre la paroi extérieure (1) et la doublure intérieure (3) et destiné à absorber l’énergie cinétique résultant d’un éventuel choc latéral. Figure 2.The invention relates to a rocker panel for installing auxiliary batteries in a motor vehicle with an electric motor, said rocker panel comprising an outer wall (1), an inner lining (3) delimiting at least one housing for the auxiliary batteries, an articulation (4) ensuring the tilting of the lower body between a high closing position where it extends in the extension of the body (6) and a low opening position and locking means ( 5) of the lower body in its closed position, characterized in that it further comprises a reinforcing element (2) mounted interposed between the exterior wall (1) and the interior lining (3) and intended to absorb the kinetic energy resulting from a possible side impact. Figure 2.
Description
L'invention concerne, de façon générale, le domaine de l’implantation de batteries d’appoint dans la caisse de véhicules automobiles à motorisation électrique et s’intéresse, plus particulièrement, au renforcement du bas de caisse basculant qui obture le compartiment destiné à recevoir de telles batteries.The invention relates, in general, to the field of the installation of auxiliary batteries in the body of motor vehicles with electric motors and is interested, more particularly, in the reinforcement of the tilting lower body which closes the compartment intended for receive such batteries.
Les véhicules équipés d’une motorisation électrique (véhicules électriques ou hybrides) sont parfois pourvus de batteries d’appoint venant en complément des batteries de traction. Ces batteries sont généralement logées dans un compartiment latéral inférieur obturé par un capot basculant qui prolonge la caisse du véhicule dans le bas et qui est dénommé « bas de caisse basculant ». Une doublure intérieure montée sur ce bas de caisse participe généralement au calage et à la fixation des batteries dans le compartiment qui leur est dédié.Vehicles equipped with an electric engine (electric or hybrid vehicles) are sometimes equipped with auxiliary batteries to complement the traction batteries. These batteries are generally housed in a lower side compartment closed by a tilting hood which extends the body of the vehicle at the bottom and which is called "tilting rocker panel". An interior lining mounted on this rocker panel generally helps with wedging and fixing the batteries in the compartment dedicated to them.
Or, ces batteries sont fragiles et il s’est donc avéré nécessaire de les protéger vis-à-vis des chocs latéraux. Ainsi, il a été recherché une solution technique permettant d’absorber les efforts résultant d’un impact éventuel contre le bas de caisse, susceptible d’endommager ces batteries.However, these batteries are fragile and it was therefore necessary to protect them against side impacts. Thus, a technical solution was sought to absorb the forces resulting from a possible impact against the underbody, likely to damage these batteries.
Le brevet US11201374B2 décrit un bas de caisse amovible de véhicule automobile qui peut être articulé à une extrémité sur un ou plusieurs panneaux de renfort.Patent US11201374B2 describes a removable underbody of a motor vehicle which can be articulated at one end on one or more reinforcing panels.
Le brevet US7520355B2 décrit une batterie implantée latéralement sous le véhicule, au niveau d’un bas de caisse pivotant conçu pour permettre l’extraction de cette batterie.Patent US7520355B2 describes a battery installed laterally under the vehicle, at the level of a pivoting rocker panel designed to allow the extraction of this battery.
Le brevet US8852794B2 décrit un véhicule muni de batteries amovibles positionnées sous la caisse du véhicule et accessible latéralement par une trappe montée au niveau du bas de caisse et qui est conformée pour s’adapter au style du véhicule lorsqu’elle se trouve en position de fermeture.Patent US8852794B2 describes a vehicle equipped with removable batteries positioned under the body of the vehicle and accessible laterally through a hatch mounted at the bottom of the body and which is shaped to adapt to the style of the vehicle when it is in the closed position .
Cependant, aucune des solutions décrites dans ces documents antérieurs ne permet d’assurer une protection efficace des batteries car les éventuels moyens de renfort ne sont pas directement intégrés dans le bas de caisse et ne sont pas, en outre, adaptés à un bas de caisse qui est articulé de façon basculante et permanente au châssis du véhicule.However, none of the solutions described in these previous documents makes it possible to ensure effective protection of the batteries because the possible reinforcement means are not directly integrated into the underbody and are not, moreover, adapted to an underbody. which is hinged in a tilting and permanent manner to the vehicle chassis.
Dans ce contexte, l'invention vise à résoudre les problèmes techniques posés par les solutions antérieures en proposant un bas de caisse basculant qui est pourvu de moyens de renfort intégrés permettant d’optimiser la protection des batteries d’appoint.In this context, the invention aims to resolve the technical problems posed by previous solutions by proposing a tilting underbody which is provided with integrated reinforcement means making it possible to optimize the protection of the auxiliary batteries.
Ce but est atteint, selon l’invention, au moyen d’un bas de caisse pour l’implantation de batteries d’appoint dans un véhicule automobile à motorisation électrique, ledit bas de caisse comprenant une paroi extérieure, une doublure intérieure délimitant au moins un logement pour les batteries d’appoint, une articulation assurant le basculement du bas de caisse entre une position haute de fermeture où il s’étend dans le prolongement de la caisse et une position basse d’ouverture et des moyens de verrouillage du bas de caisse dans sa position de fermeture, caractérisé en ce qu’il comprend, en outre, un élément de renfort monté de façon intercalaire entre la paroi extérieure et la doublure intérieure et destiné à absorber l’énergie cinétique résultant d’un éventuel choc latéral.This aim is achieved, according to the invention, by means of a rocker panel for installing auxiliary batteries in a motor vehicle with an electric motor, said rocker panel comprising an exterior wall, an interior lining delimiting at least a housing for the auxiliary batteries, an articulation ensuring the tilting of the bottom of the body between a high closing position where it extends in the extension of the body and a low opening position and means for locking the bottom of the body body in its closed position, characterized in that it further comprises a reinforcing element mounted intermediately between the exterior wall and the interior lining and intended to absorb the kinetic energy resulting from a possible lateral impact.
Selon un mode de réalisation préférentiel de l’invention, l’élément de renfort du bas de caisse est réalisé avec un matériau extrudé.According to a preferred embodiment of the invention, the underbody reinforcement element is made with an extruded material.
Selon une première variante de réalisation de l’invention, l’élément de renfort est au moins partiellement intégré dans la doublure intérieure.According to a first alternative embodiment of the invention, the reinforcing element is at least partially integrated into the interior lining.
Selon une autre variante de réalisation de l’invention, l’élément de renfort est rapporté et fixé dans le bas de caisse.According to another alternative embodiment of the invention, the reinforcing element is attached and fixed in the lower body.
De préférence, l’élément de renfort du bas de caisse de l’invention est réalisé en un matériau composite.Preferably, the underbody reinforcement element of the invention is made of a composite material.
Selon encore une autre variante de réalisation, l’élément de renfort est réalisé en aluminium ou en l’un de ses alliages.According to yet another alternative embodiment, the reinforcing element is made of aluminum or one of its alloys.
Le cas échéant, l’élément de renfort est réalisé sous forme de nid d’abeilles.Where applicable, the reinforcing element is made in the form of a honeycomb.
De préférence, la doublure Intérieure comprend des cavités destinés au moins partiellement au logement des batteries d’appoint et la paroi extérieure est pourvue d’éléments de calage de l’élément de renfort.Preferably, the interior lining comprises cavities intended at least partially for housing the auxiliary batteries and the exterior wall is provided with wedging elements for the reinforcing element.
Un autre objet de l’invention est un véhicule automobile à motorisation électrique pourvu d’un bas de caisse basculant tel que défini ci-dessus pour le logement de batteries d’appoint.Another object of the invention is a motor vehicle with an electric motor provided with a tilting rocker panel as defined above for housing auxiliary batteries.
Dans son principe, l’invention propose une solution simple et efficace pour réaliser le renforcement d’un bas de caisse basculant.In principle, the invention offers a simple and effective solution for reinforcing a tilting underbody.
Le bas de caisse basculant selon l’invention assure le logement et la protection des batteries vis-à-vis des chocs latéraux en préservant leur intégrité et en garantissant ainsi leur bon fonctionnement tout en améliorant la sécurité du véhicule.The tilting underbody according to the invention provides accommodation and protection of the batteries against lateral impacts by preserving their integrity and thus guaranteeing their proper functioning while improving the safety of the vehicle.
D’autres caractéristiques et avantages de l’invention ressortiront à la lecture de la description qui va suivre, en référence aux figures annexées, pour lesquelles :Other characteristics and advantages of the invention will emerge on reading the description which follows, with reference to the appended figures, for which:
Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l’ensemble des figures.For greater clarity, identical or similar elements are identified by identical reference signs throughout the figures.
Naturellement, les modes de réalisation du bas de caisse de l’invention illustrés schématiquement par les figures présentées ci-dessus et décrites ci-après, ne sont donnés qu'à titre d’exemples non limitatifs. Il est explicitement prévu dans le cadre de l’invention que l'on puisse proposer et combiner entre eux différents modes pour en proposer d'autres.Naturally, the embodiments of the underbody of the invention illustrated schematically by the figures presented above and described below, are given only by way of non-limiting examples. It is explicitly provided in the context of the invention that different modes can be proposed and combined to offer others.
L’invention concerne le domaine de l’implantation de batteries d’appoint dans la caisse de véhicules automobiles à motorisation électrique et s’intéresse, plus particulièrement, au renforcement de la partie basse de la caisse 6 (dite bas de caisse) délimitant, vers l’extérieur, au moins un compartiment dans lequel sont logées ces batteries. Ce renforcement est destiné à protéger les batteries vis-à-vis des chocs latéraux et à préserver ainsi la sécurité du véhicule.The invention relates to the field of the installation of auxiliary batteries in the body of motor vehicles with electric motors and is concerned, more particularly, with the reinforcement of the lower part of the body 6 (called the lower body) delimiting, towards the outside, at least one compartment in which these batteries are housed. This reinforcement is intended to protect the batteries from side impacts and thus preserve the safety of the vehicle.
De manière générale et connue en soi, ces bas de caisse sont montés de façon basculante sur le châssis des véhicules entre une position haute de fermeture dans laquelle il s’étend dans le prolongement de la caisse 6 et une position basse d’ouverture permettant l’accès au logement des batteries.In general and known per se, these rocker panels are mounted in a tilting manner on the vehicle chassis between a high closing position in which it extends in the extension of the body 6 and a low opening position allowing the access to the battery compartment.
Comme illustré par la
Comme illustré par les figures 1 à 3, l’invention vise à consolider le bas de caisse en y intégrant un élément de renfort 2, monté de façon intercalaire entre la paroi extérieure 1 et la doublure intérieure 3 et destiné à absorber l’énergie cinétique résultant d’un éventuel choc latéral. Des organes de fixation 31 assurent la solidarisation de l’élément de renfort 2 à la doublure 3, comme illustré par la
Cet élément de renfort 2 est réalisé avec un matériau extrudé et, selon une première variante de réalisation de l’invention, l’élément de renfort est au moins partiellement intégré dans la doublure intérieure 3. Toutefois, selon une autre variante de réalisation de l’invention, cet élément de renfort peut alternativement être rapporté et fixé dans le bas de caisse.This reinforcing element 2 is made with an extruded material and, according to a first alternative embodiment of the invention, the reinforcing element is at least partially integrated into the interior lining 3. However, according to another alternative embodiment of the invention, this reinforcing element can alternatively be attached and fixed in the lower body.
De préférence, l’élément de renfort 2 du bas de caisse de l’invention est réalisé en un matériau composite ou en aluminium ou bien encore en tout alliage métallique présentant des propriétés mécaniques appropriées pour absorber l’énergie cinétique résultant d’un choc contre le bas de caisse .Preferably, the reinforcing element 2 of the underbody of the invention is made of a composite material or of aluminum or even of any metal alloy having mechanical properties suitable for absorbing the kinetic energy resulting from an impact against the bottom of the body.
Le cas échéant, l’élément de renfort est réalisé sous forme de nid d’abeilles et la doublure Intérieure 3 comprend des cavités 30 destinées au moins partiellement au logement des batteries d’appoint, comme illustré par la
En limitant la course de basculement du bas de caisse vers le bas lors de l’ouverture, par exemple, au moyen de butées (non représentées), il est alors possible de mettre les batteries, si elles reposent dans les cavités 30, dans une position facilitant leur préhension.By limiting the downward tilting stroke of the underbody when opening, for example, by means of stops (not shown), it is then possible to place the batteries, if they rest in the cavities 30, in a position making them easier to grip.
De préférence, la paroi extérieure 1 est pourvue d’éléments de calage 10 de l’élément de renfort 2.Preferably, the outer wall 1 is provided with wedging elements 10 of the reinforcing element 2.
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2213508A FR3143447A1 (en) | 2022-12-16 | 2022-12-16 | REINFORCED TILTING LOWER BODY FOR MOTOR VEHICLES |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2213508A FR3143447A1 (en) | 2022-12-16 | 2022-12-16 | REINFORCED TILTING LOWER BODY FOR MOTOR VEHICLES |
FR2213508 | 2022-12-16 |
Publications (1)
Publication Number | Publication Date |
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FR3143447A1 true FR3143447A1 (en) | 2024-06-21 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR2213508A Pending FR3143447A1 (en) | 2022-12-16 | 2022-12-16 | REINFORCED TILTING LOWER BODY FOR MOTOR VEHICLES |
Country Status (1)
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FR (1) | FR3143447A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7520355B2 (en) | 2000-07-06 | 2009-04-21 | Chaney George T | Hybrid electric vehicle chassis with removable battery module |
US8852794B2 (en) | 2012-01-18 | 2014-10-07 | Battchange, Llc | Electric vehicle battery case |
DE102017124018A1 (en) * | 2016-11-30 | 2018-05-30 | Toyota Jidosha Kabushiki Kaisha | Structure of the lower portion of the vehicle body |
FR3082298A1 (en) * | 2018-06-08 | 2019-12-13 | Renault Trucks Defense | ARMORED MOTOR VEHICLE COMPRISING A SURVIVAL CELL |
US20210143381A1 (en) * | 2019-11-13 | 2021-05-13 | Giuseppe IERADI | Electric vehicle battery system |
-
2022
- 2022-12-16 FR FR2213508A patent/FR3143447A1/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7520355B2 (en) | 2000-07-06 | 2009-04-21 | Chaney George T | Hybrid electric vehicle chassis with removable battery module |
US8852794B2 (en) | 2012-01-18 | 2014-10-07 | Battchange, Llc | Electric vehicle battery case |
DE102017124018A1 (en) * | 2016-11-30 | 2018-05-30 | Toyota Jidosha Kabushiki Kaisha | Structure of the lower portion of the vehicle body |
FR3082298A1 (en) * | 2018-06-08 | 2019-12-13 | Renault Trucks Defense | ARMORED MOTOR VEHICLE COMPRISING A SURVIVAL CELL |
US20210143381A1 (en) * | 2019-11-13 | 2021-05-13 | Giuseppe IERADI | Electric vehicle battery system |
US11201374B2 (en) | 2019-11-13 | 2021-12-14 | Giuseppe IERADI | Electric vehicle battery system |
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