![]() HYBRID AUTOMOBILE MOTOR VEHICLE BASE ARRANGEMENT.
专利摘要:
The invention relates to a rear body arrangement (10) of a box structure for a rechargeable hybrid motor vehicle comprising a rear cradle (18) extended at each of its ends by two arms (181, 182) front and rear, on which points fasteners (181a, 182a) make it possible to secure the cradle with the body and the rear axle, vehicle components comprising a low-voltage battery (11), a high-voltage battery (12), a battery charger (13). ), a fuel tank (14) and an exhaust silencer (16), being arranged at said rear underbody structure, the position of the attachment points (182a) of the rear arms (182) of the rear cradle defining a reference position (PO) in the longitudinal direction (X) of the vehicle, behind which said exhaust silencer is disposed, and in front of which the other of said vehicle members are arranged s. 公开号:FR3049920A1 申请号:FR1653010 申请日:2016-04-06 公开日:2017-10-13 发明作者:Philippe Juhe 申请人:Renault SAS; IPC主号:
专利说明:
The invention relates to a base arrangement for a Plug-in Hybrid Electric Vehicle (PHEV), which is a type of hybrid electric vehicle whose batteries can be recharged by a plug-in hybrid vehicle. connection to an external power source. Conventionally, a vehicle underbody, also called "underbody structure" comprises at least a front portion and a rear portion. The rear portion is delimited by two substantially parallel rear longitudinal members extending substantially longitudinally under the passenger compartment and which are in particular designed to support the loading floor of the vehicle. The rear rails stiffen the structure of the vehicle and form a backward absorption of effort during rear impacts. Thus, they are likely to crash over a greater or lesser length during a rear impact. In addition, several sensitive organs of a rechargeable hybrid vehicle such as the fuel tank, the low voltage battery (12V) supplying the vehicle's on-board network, the high-voltage battery (400V) supplying the vehicle's electric motor via electronics power supply (inverter), the charger or the exhaust silencer, must be arranged at the rear of the vehicle underbody. This arrangement must take into account various technical constraints and in particular must meet the requirements of a shock test protocol defined by the manufacturer. Such an impact test protocol requires, for example, to respect performance in terms of the maximum value of driving the vehicle fuel tank in the longitudinal direction of the vehicle, under specified conditions of rear impact, such as a rear impact against a vehicle. rigid barrier of 1100 kg at a speed of 65 Km / h. Under these conditions, it is desired to limit the depression of the tank to a maximum value of 20 mm in the longitudinal direction of the vehicle. It may also be derived from the crash test protocol a rule, consisting of setting a theoretical limit in X, or in the longitudinal direction of the vehicle, at the rear of which the major part of the deformation, under the specified conditions of impact rear, must be performed on the vehicle. This implies to dissipate in the longitudinal members most of the energy related to the shock. By determining the section of the spars and their degree of compression under the effect of the dissipation of the forces of the rear impact under the specified conditions, this theoretical limit can be defined in X. The arrangement of the sensitive members at the rear portion of the underbody must take into account this theoretical limit. Moreover, in the case of plug-in hybrid vehicles, the production volumes of such vehicles are still relatively low compared with conventional all-thermal vehicles, for example. It is therefore necessary to provide a technical architecture of the rear part of the underbody, which can be common for different ranges of plug-in hybrid vehicles, so as to reduce the production costs of these vehicles. Examples of underbody structure rear body arrangement for plug-in hybrid vehicles such as the example provided by the Volkswagen manufacturer's Golf® GTE plug-in hybrid vehicle or the example provided by the Prius® plug-in hybrid vehicle developed by the manufacturer Toyota. However, on the Golf GTE, the fuel tank is arranged extending significantly beyond the axis of the rear wheels towards the rear of the vehicle, a distance of about 300 mm behind the axis of the rear wheels, and the 12V battery is located on the side of the tank. Such an arrangement does not limit the depression of the fuel tank to a desired maximum value under specified conditions of rear impact, especially under the conditions indicated above. On the Prius plug-in hybrid vehicle, the fuel tank is located fully forward of the rear wheel axle of the vehicle, but the vehicle's high-voltage battery is arranged in the vehicle trunk. This results on the one hand, a significant loss of the volume of available safe, which is undesirable, and, on the other hand, a failure to comply with the design constraint vis-à-vis the theoretical limit in X arising from the shock test protocol under the conditions indicated above. Also, there is a need for an arrangement of a rear body structure for a hybrid vehicle type rechargeable vehicle, which is likely to meet the technical constraints of the arrangement with respect to the dissipation of the forces in case of rear impact, in particular in the shock test protocol conditions indicated above and which limits the loss of useful volume in the trunk of the vehicle. To this end, the invention proposes a rear underbody structure arrangement for a rechargeable hybrid motor vehicle comprising a rear axle, a rear cradle comprising a central zone extending transversely to a longitudinal direction of the vehicle, extended to each of its ends by two arms, respectively a front arm and a rear arm, on which fixing points are provided for securing the cradle on the one hand, with the body and on the other hand, with the rear axle, a plurality of vehicle members including at least one low voltage battery, a high voltage battery, a battery charger, a fuel tank, and an exhaust silencer located at the end of an exhaust line, being arranged at said rear underbody structure, said arrangement being characterized in that the position of the attachment points at the rear arm of the rear cradle defines a reference position in the longitudinal direction of the vehicle, behind which said exhaust muffler is disposed and in front of which the other members of said plurality of vehicle members are arranged . Preferably, the reference position in the longitudinal direction of the vehicle is defined with a tolerance of at most 50 mm forward or backward of the position of the attachment points at the rear arms of the rear cradle. According to one embodiment, said fuel tank is arranged strictly in front of the axis of the rear wheels of the vehicle. Alternatively, the fuel tank is arranged so that a rear end of said fuel tank is located, in the longitudinal direction of the vehicle, between the axis of the rear wheels and a position at most 50 mm and preferably 40 mm at the rear of the rear wheel axle. Advantageously, said fuel tank is disposed between said low voltage battery and said high voltage battery in the longitudinal direction of the vehicle. Advantageously, said fuel tank is disposed in the longitudinal direction of the vehicle opposite said reference position relative to said low voltage battery. Preferably, said fuel tank, said low voltage battery and said charger are mounted on said rear cradle. Advantageously, said fuel tank has a dimension in the vertical direction of the vehicle greater than its dimension in the longitudinal direction of the vehicle. Preferably, said fuel tank has a cavity in the lower part to ensure the passage of the exhaust line to the exhaust silencer. The invention also relates to a refillable hybrid motor vehicle comprising a rear arrangement of underbody structure as described above. Other features and advantages of the invention will emerge clearly from the description which is given below, by way of indication and in no way limiting, with reference to the accompanying drawings, in which: - Figure 1 is a schematic perspective view of the rear underbody structure arrangement according to the invention for a rechargeable hybrid motor vehicle; FIG. 2 is a schematic perspective view illustrating in detail the rear axle portion of the arrangement shown in FIG. 1; - Figure 3 is a longitudinal sectional view of the rear arrangement of the underbody structure shown in Figure 1; FIG. 4 is a diagrammatic bottom perspective view of the underbody structure rear portion arrangement illustrated in FIG. 1; - Figure 5 is a schematic view of the interior of the trunk of the motor vehicle. These figures are represented according to directions and orientations defined with reference to a reference XZY, in which the axis X is the longitudinal direction, from front to rear, of the vehicle, directed towards the rear, the Y axis is the direction transverse of the vehicle, directed to the right, and the Z axis is the vertical direction of the vehicle, directed upwards. FIG. 1 thus illustrates the arrangement of the rear part 10 of an underbody structure of a rechargeable hybrid motor vehicle. At this rear part 10 of the underbody structure, several members of the rechargeable hybrid motor vehicle must be installed, among which a low voltage battery 11 (12V), a high voltage battery 12 (400V), a charger 13, a battery fuel 14, an exhaust line 15 and a silencer 16, located at the end of the exhaust line 15 and intended to reduce exhaust noise exhaust. According to the architecture described in FIG. 1, the vehicle comprises a rear axle 17, for example of the multi-link type. As illustrated more specifically with reference to FIG. 2, the rear axle 17 comprises a rear cradle 18, which is located substantially in the Y axis of the rear wheels of the vehicle and which constitutes a structural part, preferentially metallic, making it possible to ensure the connection between, on the one hand, the vehicle body and, on the other hand, the rear axle of the vehicle. Thus, the rear cradle 18 comprises a central zone 180, extending transversely to a longitudinal direction X of the vehicle, on which are fixed at each end, two profiled arms 181, 182 respectively a front arm and a rear arm, which constitute connecting means respectively with the body and with the rear axle. To do this, fixing points 181a, 182a are provided at each front and rear arm 181, 182 of the rear cradle 18, so as to ensure the attachment of the rear cradle 18 on the one hand, with the body and, on the other hand, with the rear axle. The purpose of the invention is notably to implant the bodies 11 to 16 of the vehicle described above in order to define an architecture of the rear part of the underbody structure that is optimized with regard to certain technical constraints, in particular relating to the dissipation of forces during a rear impact. Also, the implantation of these vehicle members will be carried out taking into account in particular a reference position PO in the longitudinal direction X of the vehicle, in front of which must necessarily be positioned the sensitive organs of the vehicle, in particular the fuel tank 14, the low voltage battery 11 and the charger 13. According to the invention, as illustrated in FIG. 2, this X PO reference position is defined by the position of the fixing points 182a at the rear arms 182 of the rear cradle 18. In other words, the reference position is defined by a line along the Y axis passing through the fixing points 182a of the rear arms 182 of the rear cradle 18. Preferably, the reference position is defined with a tolerance of at most 50 mm on either side of the position rear attachment points of the rear cradle along the longitudinal axis X of the vehicle (in particular according to the weight of the vehicle, the rear overhang, the body). The reference position PO thus defined is used to fix the implantation of the vehicle components. In the first place, the silencer 16, which is a compressible element, is advantageously disposed at the rear of the reference position PO. Thus, compared to the reference position PO, the muffler 16 is located towards the rear of the vehicle, whereas compared to the muffler 16, the reference position PO is located towards the front of the vehicle. Such an arrangement of the silencer 16 with respect to the reference position PO makes it possible to release space in front of the reference position PO, where the other components of the vehicle are advantageously arranged, among which the low-voltage battery 11, the high voltage battery 12, the charger 13, and the fuel tank 14. As illustrated more specifically in FIG. 3, the fuel tank 14 has a wall 140 which extends transversely to the longitudinal direction of the vehicle when the reservoir is located at the rear part of the underbody structure and which defines the rear end of the tank in the arrangement of the rear part of the underbody structure. According to a first embodiment, the fuel tank 14 is preferably implanted strictly in front of the YO axis of the rear wheels. In other words, the fuel tank is located so that the rear end 140 of the tank does not protrude behind the rear wheel axis YO. According to a second embodiment more specifically illustrated in FIG. 3, the fuel tank 14 can be arranged so that its rear end 140 is situated, in the longitudinal direction X of the vehicle, between the axis YO of the rear wheels and a position located at most 50 mm and preferably at 40 mm, at the rear of the axis of the rear wheels. In other words, according to this second embodiment, the fuel tank 14 can exceed at most 50 mm and preferably 40 mm at the rear of the rear wheel axis. Such an arrangement of the fuel tank advantageously makes it possible to limit the X penetration of the fuel tank 14, for example to a maximum value of 20 mm during a rear impact corresponding to the shock test protocol specified in the preamble. In addition, the fuel tank 14 has a dimension in the vertical direction of the vehicle greater than its dimension in the longitudinal direction of the vehicle. In other words, the fuel tank 14 has its largest dimension in the vertical direction of the vehicle. In other words, the fuel tank 14 has a generally vertical shape, allowing, for a given fuel storage capacity, to reduce the size of the fuel tank in the longitudinal direction of the vehicle. It results from the generally vertical shape of the fuel tank, providing a better compactness in X, that the upper part of the tank, on which is positioned the tank drain, encroaches into the volume of the trunk of the vehicle, as shown in Figure 5 Thus, the trunk of the vehicle has a floor 20, which has an opening 22 in which protrudes the upper part of the fuel tank 14 and through which access is provided to the tank and to the tank drain. In addition, this opening 22 formed in the floor 20 of the trunk is adapted to provide access to the low voltage battery 11 of the vehicle. The implantation of the fuel tank 14 is such that its upper part is provided to encroach in the volume of the trunk in substantially central position of the trunk. Thus, the reservoir 14 protrudes through the opening 22 in a substantially central position of the trunk of the vehicle. The opening 22 is advantageously covered by a formwork (not shown) closing the access to the tank 14. This formwork thus constitutes a boss connected to the floor 20 of the trunk of the vehicle, whose positioning is substantially central in the trunk of the vehicle. According to another characteristic of the arrangement according to the invention, the fuel tank 14 is arranged in the longitudinal direction X of the vehicle opposite the reference position PO with respect to the low voltage battery 11. In other words, the Low voltage battery 11 is located between the reference position PO and the fuel tank 14. The charger 13 is located laterally to the low voltage battery 11. The set of organs constituted by the fuel tank 14, the low voltage battery 11 and the loader 13 is preferably fixed to the rear cradle 18 of the rear axle 17 of the vehicle, at its central zone 180, for better compactness. The fuel tank 14 is furthermore positioned between the low voltage battery 11 and the high voltage battery 12 in the longitudinal direction X of the vehicle. The high voltage battery 12 is furthermore arranged so as to extend under the box between the fuel tank 14 and the pareclose, constituted by a substantially vertical sheet wall 30 extending transversely with respect to the longitudinal axis of the vehicle. and forming a "step" under the seats of the rear seats of the vehicle. As illustrated more specifically in FIG. 4, the arrangement of the rear part of the underbody structure of the vehicle comprises the exhaust line 15 of the vehicle, designed to circulate under the members arranged in this rear part of the underbody structure until exhaust silencer 16 positioned at the rear of the reference position in X PO. The fuel tank 14 has an increased Z-shaped space to limit its size in X equal volume. Also, the fuel tank 14 comprises a cavity 141 formed in the lower part of the fuel tank, wherein the exhaust line 15 is adapted to be arranged to ensure the passage of the exhaust line 15 through the portion bottom of the tank 14 to the exhaust silencer 16.
权利要求:
Claims (10) [1" id="c-fr-0001] A rear underbody body arrangement (10) for a rechargeable hybrid motor vehicle comprising a rear axle (17), a rear cradle (18) having a central zone (180) extending transversely to a longitudinal direction (X) of the vehicle, extended at each of its ends by two arms (181, 182), respectively a front arm and a rear arm, on which fixing points (181a, 182a) are provided for securing the cradle of on the one hand, with the body and on the other hand, with the rear axle, a plurality of vehicle components, among which at least one low-voltage battery (11), a high-voltage battery (12), a battery charger ( 13), a fuel tank (14), and an exhaust silencer (16) located at the end of an exhaust line (15) being arranged at said rear underbody structure, characterized in that that the position of the fix points ation (182a) at the rear arms (182) of the rear cradle (18) defines a reference position (PO) in the longitudinal direction (X) of the vehicle, behind which said exhaust muffler (16) is disposed, and in front of which the other members of said plurality of vehicle members are arranged. [2" id="c-fr-0002] An arrangement according to claim 1, characterized in that the reference position (PO) in the longitudinal direction of the vehicle is defined with a tolerance of at most 50 mm forward or backward of the position of the attachment points (182a). at the rear arms of the rear cradle. [3" id="c-fr-0003] 3. Arrangement according to claim 1 or 2, characterized in that said fuel tank (14) is arranged strictly in front of the axis (YO) of the rear wheels of the vehicle. [4" id="c-fr-0004] Arrangement according to claim 1 or 2, characterized in that the fuel tank (14) is arranged such that a rear end (140) of said fuel tank (14) is located in the longitudinal direction of the vehicle, between the axis of the rear wheels (YO) and a position located at most 50 mm and preferably 40 mm, at the rear of the rear wheel axis. [5" id="c-fr-0005] 5. Arrangement according to any one of the preceding claims, characterized in that said fuel tank (14) is disposed between said low voltage battery (11) and said high voltage battery (12) in the longitudinal direction of the vehicle. [6" id="c-fr-0006] 6. Arrangement according to any one of the preceding claims, characterized in that said fuel tank (14) is disposed in the longitudinal direction of the vehicle opposite said reference position (PO) relative to said low voltage battery (11). [7" id="c-fr-0007] 7. Arrangement according to any one of the preceding claims, characterized in that said fuel tank (14), said low voltage battery (11) and said charger (13) are mounted on said rear cradle (18). [8" id="c-fr-0008] 8. Arrangement according to any one of the preceding claims, characterized in that said fuel tank (14) has a dimension in the vertical direction of the vehicle greater than its dimension in the longitudinal direction of the vehicle. [9" id="c-fr-0009] 9. Arrangement according to any one of the preceding claims, characterized in that said fuel tank (14) has a cavity (141) in the lower part to ensure the passage of the exhaust line (15) to the silencer d exhaust (16). [10" id="c-fr-0010] Rechargeable hybrid motor vehicle comprising an arrangement according to any one of the preceding claims.
类似技术:
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同族专利:
公开号 | 公开日 JP2019515830A|2019-06-13| EP3439905A1|2019-02-13| FR3049920B1|2018-03-30| CN108883697B|2022-02-25| CN108883697A|2018-11-23| KR20180132801A|2018-12-12| KR102270139B1|2021-06-28| WO2017174893A1|2017-10-12| EP3439905B1|2020-09-02|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 EP2050663A1|2007-10-19|2009-04-22|Honda Motor Co., Ltd.|Undercover for vehicle and mounting structure thereof| DE102010007414A1|2010-02-10|2011-08-11|Magna Steyr Fahrzeugtechnik Ag & Co. Kg|Built-in module for use in passenger car, has axle carrier i.e. real wheel axle carrier, forming battery carrier, where battery is held and fixed at battery carrier and structures of battery and battery carrier are adapted to each other| DE102011081836A1|2011-08-30|2013-02-28|Bayerische Motoren Werke Aktiengesellschaft|Electrically driven axle of a two-lane vehicle| DE102012013790A1|2012-07-11|2014-01-16|Volkswagen Aktiengesellschaft|Arrangement for fuel tank in region of rear axle of motor vehicle, has fuel tank extended partially over region between rear wheel supports, and is positioned such that fuel tank is protected by element of rear axle from mechanical impact|EP3831632A1|2019-12-03|2021-06-09|PSA Automobiles SA|Motor vehicle provided with a battery attached to a rear end crossmember|JP4207790B2|2004-02-02|2009-01-14|トヨタ自動車株式会社|Lower body structure| US8522910B2|2009-09-08|2013-09-03|Toyota Jidosha Kabushiki Kaisha|Vehicle underbody structure|FR3072637B1|2017-10-19|2019-10-04|Psa Automobiles Sa|MOTOR VEHICLE HAVING A PUSHING MEANS FOR PROTECTING MOTORIZATION EQUIPMENT AND PROTECTIVE METHOD| FR3101057B1|2019-09-23|2021-12-17|Renault Sas|Removable cover for access hatch to a fuel tank and a hybrid vehicle battery charger|
法律状态:
2017-04-19| PLFP| Fee payment|Year of fee payment: 2 | 2017-10-13| PLSC| Publication of the preliminary search report|Effective date: 20171013 | 2018-04-20| PLFP| Fee payment|Year of fee payment: 3 | 2019-04-18| PLFP| Fee payment|Year of fee payment: 4 | 2020-04-20| PLFP| Fee payment|Year of fee payment: 5 | 2021-04-23| PLFP| Fee payment|Year of fee payment: 6 |
优先权:
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申请号 | 申请日 | 专利标题 FR1653010|2016-04-06| FR1653010A|FR3049920B1|2016-04-06|2016-04-06|HYBRID AUTOMOBILE MOTOR VEHICLE BASE ARRANGEMENT.|FR1653010A| FR3049920B1|2016-04-06|2016-04-06|HYBRID AUTOMOBILE MOTOR VEHICLE BASE ARRANGEMENT.| KR1020187031876A| KR102270139B1|2016-04-06|2017-03-24|Underbody arrangement of a rechargeable hybrid vehicle| CN201780022344.4A| CN108883697B|2016-04-06|2017-03-24|Arrangement of a rear part of an underbody structure for a rechargeable hybrid motor vehicle and hybrid motor vehicle| EP17717477.8A| EP3439905B1|2016-04-06|2017-03-24|Underbody arrangement for a rechargeable hybrid motor vehicle| PCT/FR2017/050689| WO2017174893A1|2016-04-06|2017-03-24|Underbody arrangement for a rechargeable hybrid motor vehicle| JP2018552756A| JP7005512B2|2016-04-06|2017-03-24|Rechargeable hybrid motor body lowering device for vehicles| 相关专利
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