Automotive vehicle structure with ESP block support

Abstract

The invention relates to a motor vehicle structure (12), the structure comprising: a passenger compartment, a front compartment (14) in front of the passenger compartment, a front bulkhead (18) between the front compartment and the passenger compartment, and a front side member (20), also called a front crossmember, extending along the front compartment (14). A bulkhead crossmember (34) extends transversely along the front bulkhead (18) from the front side member. The structure (12) also includes a reinforcing plate (38) joined to the bulkhead crossmember (34) and the front side member (20). The reinforcing plate (38) includes a mounting area (46) for attaching to a hydraulic module (30) of the braking system. The hydraulic module (30) is an electronic stability control unit (ESP). Figure to be published with the abbreviation: Figure 2

Description

Title of the invention: Automotive vehicle structure with ESP block support

[0001] The invention relates to a low-overlap frontal collision of a motor vehicle. The invention relates to the mounting of a hydraulic module for a motor vehicle braking system. The invention relates to a motor vehicle structure. The invention also relates to a motor vehicle.

[0002] The front structure of a motor vehicle essentially comprises three load paths in the event of a frontal collision. These paths include the upper path, also called the frame rail; the lower path; and the third load path. The frame rail comprises front side members extending along the front compartment, also called the engine compartment. The front side members extend to the bumper system and rest on the powertrain.

[0003] In the event of a frontal collision with partial overlap, for example, a transverse overlap between 25% and 33%, a significant load is observed on the bulkhead via the frame rail on the impacted side. This load causes the central bulkhead crossmember to bend and result in punctures, leading to substantial intrusions into the passenger compartment. These intrusions endanger the occupants and thus worsen the impact rating according to the applied protocol. The load on the bulkhead increases with the vehicle's mass.

[0004] In this case, to avoid excessive puncture of the deck and maintain better stability of the frame line despite a high-speed frontal impact, improved force distribution is essential. It is therefore necessary to add reinforcement, such as a reinforcing plate, to ensure better distribution of forces towards the inside of the central deck cross member.

[0005] Document DE10109724A1 presents a front structure for a motor vehicle. Assembly support sheet metal inserts consist of an upper member and vertical supports. The sheet metal parts are joined together by riveting, welding, or plastic injection molding. The opposite ends of the upper member are connected to the upper side members of the vehicle body. The two lower free ends of the vertical supports are connected to the lower side members of the vehicle body by bolting. The one-piece design of the support sheet metal insert optimizes its manufacture. Sheet metal waste is reduced by forming the frame sections on the sides with vertical braces.

[0006] Document EP3608210A1 describes a front vehicle structure comprising a first bumper reinforcement, a pair of right and left front side elements arranged respectively on a rear side of the vehicle, outer portions of the first bumper reinforcement in the width direction of the vehicle, an upper apron element, a first protective box interposed between the first bumper reinforcement and the front side element, a cross member connecting the front ends of the pair of right and left front elements; side elements in the width direction of the vehicle, and a high-voltage component arranged on the rear side of the vehicle and at a distance from the cross member. The first protective box is configured to undergo compressive deformation when a load equal to or greater than a predetermined value is applied from the first bumper reinforcement.

[0007] On some structures, the addition of reinforcements has no consequences. Conversely, in some cases the reinforcement must be adapted to the presence of active safety components. Thus, on one side of the vehicle, the geometry of the reinforcement remains unrestricted, while on the other side, adaptations are required.

[0008] A motor vehicle is equipped with a centralized braking system that actuates various braking devices, each associated with one of the wheels. To improve safety, the braking system includes a centralized control system. This control system prevents wheel lock-up during heavy braking and helps maintain trajectory control when cornering. For convenience, it is installed in the front compartment, on one side of the structure. However, its placement is hampered by the presence of reinforcements as mentioned above.

[0009] The invention aims to address at least one of the problems or drawbacks encountered in the prior art. In particular, the invention aims to optimize the safety and simplicity of a motor vehicle structure. The invention also aims to optimize the ease of assembly, weight, cost, and safety of a motor vehicle.

[0010] According to a first aspect, the invention proposes a motor vehicle structure, the structure comprising: a passenger compartment, a front compartment in front of the passenger compartment, a front apron between the front compartment and the passenger compartment, a front longitudinal member extending along the front compartment, an apron cross member extending transversely along the front apron from the front longitudinal member; a reinforcing plate joined to the apron cross member and the front longitudinal member; notable in that the reinforcing plate includes a fixing area intended to be fixed to a hydraulic braking system module.

[0011] The reinforcing plate forms a single piece performing two functions in the structure: it reinforces the junction point between the apron crossmember and the front longitudinal member, and It provides a stable mounting interface for the hydraulic module. This reduces the number of parts in the structure while still ensuring its support function. In the event of a collision, particularly one with minimal overlap, deformation at the rear of the front side member is controlled.

[0012] Preferably, the apron cross member comprises a first upper surface, the reinforcing plate comprises a first portion vertically against the first upper surface; the fixing area being vertically at a distance from the first portion.

[0013] Preferably, the front longitudinal member comprises a second upper surface, the reinforcing plate comprises a second portion vertically against the second upper surface; the fixing area being vertically at a distance from the second portion.

[0014] Preferably, the reinforcing sheet comprises a lower portion, an upper portion with a longitudinal strip, the fixing area being in the lower portion.

[0015] Preferably, the reinforcing sheet includes a vertical opening between the fixing area and the longitudinal strip.

[0016] Preferably, the fixing area is above the front longitudinal member and transversely in line with the apron cross member.

[0017] Preferably, the reinforcing sheet includes a lower flange conforming to the apron cross member and the front longitudinal member.

[0018] Preferably, the reinforcing plate includes at least one upper fixing tab longitudinally and / or transversely at a distance from the fixing area.

[0019] Preferably, at least one upper fixing lug comprises a front fixing lug and a rear fixing lug which are longitudinally distant from the fixing area.

[0020] Preferably, the reinforcing plate includes a rear stop against the front apron and longitudinally at a distance from the fixing area.

[0021] Preferably, the fixing area is under the rear stop.

[0022] Preferably, the front spar is a first front spar, the structure further includes a second front spar, the deck cross member extending transversely to the second front spar, the reinforcing plate is a first reinforcing plate, the structure includes a second reinforcing plate joined to the deck cross member and to the second front spar, the first reinforcing plate being vertically larger than the second reinforcing plate.

[0023] Preferably, the reinforcing sheet came from material.

[0024] Preferably, the reinforcing sheet comprises a vertical junction connecting the strip longitudinal to the lower portion.

[0025] Preferably, the attachment area comprises a plurality of vertical orifices.

[0026] Preferably, the fixing area is horizontal.

[0027] Preferably, the attachment zone separates the first portion from the second portion.

[0028] Preferably, the front leg is transversely away from the attachment area.

[0029] Preferably, the second reinforcing plate includes gripping openings.

[0030] Preferably, the longitudinal strip is perpendicular to the rear stop.

[0031] According to another aspect, the invention proposes using a reinforcing plate between a front side member and a front bulkhead crossmember to support a hydraulic module of a motor vehicle braking system. Such a reinforcing plate simplifies the structure while optimizing safety.

[0032] Preferably, the reinforcing plate comprises a longitudinal portion fixed to the front side member and / or a transverse portion fixed to the apron cross member.

[0033] According to another aspect, the invention proposes a motor vehicle structure; the structure comprising: a passenger compartment, a front compartment, a front bulkhead, a front side member extending along the front compartment, and a bulkhead crossmember extending transversely along the front bulkhead; notable in that the structure includes a mounting bracket for a hydraulic module of a motor vehicle braking system, the mounting bracket being connected to the bulkhead crossmember and the front side member. Such a structure is simplified while optimizing safety in the event of a partial overlap frontal collision.

[0034] According to another aspect, the invention proposes a motor vehicle comprising a structure and a braking system with a hydraulic module; remarkable in that the structure conforms to the invention.

[0035] Preferably, the braking system includes a hydraulic circuit connected to the hydraulic module.

[0036] Preferably, the hydraulic module includes at least one solenoid valve.

[0037] Preferably, the hydraulic module includes a computer and / or a compressor.

[0038] Each feature introduced by the expression "preferably" given in relation to one of the aspects of the invention applies to all other aspects of the invention.

[0039] The invention will be well understood and other aspects and advantages will become clear upon reading the following description, given with reference to the attached figures listed below.

[0040] Fig. 1 is a side view of a motor vehicle according to the invention.

[0041] Fig. 2 shows a right front side of a motor vehicle structure according to the invention.

[0042] Figure 3 illustrates a structural reinforcement plate for a motor vehicle according to the invention.

[0043] Fig. 4 represents a front left side of a motor vehicle structure according to the invention.

[0044] In the following description, the term "include" is synonymous with "include" and is not limiting in that it permits the presence of other elements in the motor vehicle to which it relates. It is understood that the term "include" includes the terms "consist of". The terms "external" and "internal" shall respectively designate what is oriented towards the outside of the vehicle and towards the inside of the vehicle.

[0045] In this description, the terms "longitudinal," "longitudinally," "transverse," and "transversely" are used with respect to the vehicle's frame of reference in the mounting configuration. The term "longitudinal" refers to the principal direction of travel of the vehicle. The term "transverse" refers to a direction perpendicular to the principal direction of travel of the vehicle. The term "front" refers to the principal direction of travel of the vehicle. The term "rear" refers to the opposite of the front of the vehicle.

[0046] The X-axis represents the longitudinal direction, the Y-axis represents the transverse direction, and the Z-axis represents the vertical direction of the motor vehicle. These three axes define a right-handed trihedron whose orientation is preserved throughout the figures.

[0047] In the present description, equality between values ​​is not to be understood in the strict sense insofar as each equality allows a variation of at most 10%, preferably at most 5%, more preferably at most 2%, between these values.

[0048] In this description, the terms "vertical" and "horizontal" are not to be understood in their strict sense. Indeed, they allow an inclination of at most 20°, preferably at most 10°, more preferably at most 5°, and even more preferably at most 2°; with respect to the strict meaning of these terms.

[0049] In this description, the technical characteristics are defined in the mounting configuration of the structure, unless otherwise explicitly stated.

[0050] Throughout the description, the different figures use the same reference signs to designate identical or similar entities.

[0051] Figure 1 represents a motor vehicle 10, according to an embodiment of the invention. The motor vehicle 10 comprises energy storage means and at least one engine (not shown) suitable to drive said motor vehicle 10.

[0052] The motor vehicle 10 comprises a structure 12. The structure 12 forms an outer body, or the main frame of the motor vehicle. The structure 12 may be formed from an assembly of stamped and welded sheet metal. The motor vehicle 10 comprises a plurality of wheels. These wheels provide contact with the ground. They are associated with a suspension system and a steering system (not shown) connected to the structure 12.

[0053] Structure 12 delimits several compartments. Structure 12 delimits a front compartment 14, generally referred to as the engine compartment. Structure 12 also delimits a passenger compartment 16, also called the passenger compartment. The passenger compartment 16 is located behind the front compartment 14. These compartments are separated by a front bulkhead 18. The front bulkhead 18 forms a vertical partition between the front compartment 14 and the passenger compartment 16.

[0054] The structure 12 comprises several side members, including central side members along the passenger compartment 16, and front side members 20 extending along the front compartment 14. The front bulkhead 18 is located between the central side members and the front side members 20. The front side members 20 are also called front beams. They form curved beams extending longitudinally forward.

[0055] The motor vehicle 10 includes a braking system 22. The braking system 22 includes at least one braking device 24 associated with at least one of the wheels. Depending on one option, the braking system 22 includes a braking device 24 associated with each wheel. For example, each includes a brake caliper cooperating by friction with a disc by means of brake pads actuated by pistons. Alternatively, they include a drum inside which friction shoes are pushed.

[0056] The braking system 22 has a hydraulic circuit 26. The hydraulic circuit 26, via its lines, connects a brake control 28 to each braking device 24. The hydraulic circuit 26 is filled with brake fluid. The brake control 28 is user-operable. The brake control 28 is connected to a master cylinder (not shown) which is connected to each braking device 24 by at least one line.

[0057] According to an alternative of the invention, the braking control is controlled by an autonomous driving system of the motor vehicle.

[0058] The braking system 22 includes a hydraulic module 30. The hydraulic circuit 26 is connected to the hydraulic module 30. The hydraulic module 30 is a control module. It provides regulation of the pressure and / or flow rate of the Hydraulic fluid flow is determined by the rotational speed of a wheel and / or a grip criterion. The hydraulic module 30 is configured to implement an anti-lock braking system (ABS). The hydraulic module 30 is also configured to implement an electronic stability program (ESP).

[0059] The motor vehicle can, for example, be a private motor vehicle or a commercial motor vehicle.

[0060] Figure 2 shows one side of a front section of a motor vehicle structure 12, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to Figure 1. This side is opposite the steering wheel. However, the invention can be adapted to the left side. The front compartment 14 is in the foreground.

[0061] The structure 12 includes a front apron 18 at the interface between the front compartment 14 and the passenger compartment. The front apron 18 forms a watertight seal. The front longitudinal member 20 extends longitudinally from the front apron 18. It is generally curved. It runs alongside a side wall 32 defining a wheel arch.

[0062] The front apron 18 is reinforced by an apron crossmember 34. The apron crossmember 34 is also called the center crossmember. The apron crossmember 34 is on the side of the front compartment 14. It is mounted against the front side member 20. The apron crossmember 34 is generally perpendicular to the front side member 20. It extends transversely along the front apron 18 from the front side member 20. The apron crossmember 34 includes at least one mounting bracket 36 attached to the front apron 18. It generally extends over the entire transverse width of the front compartment 14, or at least over half of it.

[0063] The structure 12 comprises a reinforcing plate 38 attached to the apron crossmember 34 and the front side member 20. It is fixed to each of them. It forms a reinforcing bracket that improves stability in the event of deformation caused by a frontal impact. The reinforcing plate 38 has a longitudinal portion 40 and a transverse portion 42 which are respectively fixed to the front side member 20 and the apron crossmember 34. The longitudinal portion 40 runs along and conforms to the front side member 20. The transverse portion 42 runs along and conforms to the apron crossmember 34.

[0064] The reinforcing plate 38 includes a mounting area 46. The mounting area 46 receives the hydraulic module 30 of the braking system. The reinforcing plate 38 thus serves as a mounting support for the hydraulic module 30. It has a dual function. The mounting area 46 is above the front side member 20 and transversely in the extension of the deck cross member 34. The hydraulic module 30 is thus above the front longitudinal member 20 and the deck cross member 34.

[0065] The deck cross member 34 comprises a first upper surface 48. The reinforcing plate 38 comprises a first portion 50 vertically against the first upper surface 48. The first upper surface 48 and the first portion 50 are horizontal. The fastening area 46 is vertically spaced away from the first portion 50. They are vertically separated. This stepped configuration frees up space for fastening the hydraulic module 30.

[0066] The front side member 20 includes an upper surface, referred to as the second upper surface 52. The first upper surface 48 and the second upper surface 52 are coplanar. The reinforcing plate 38 includes a second portion 54 positioned vertically against the second upper surface 52. The second upper surface 52 and the second portion 54 are parallel and preferably fixed to each other. They are vertically separated. The mounting area 46 is vertically offset from the second portion 54. Again, this facilitates the attachment of the hydraulic module 30. The mounting area 46 separates the first portion 50 from the second portion 54. The mounting area 46 forms a step, a platform, relative to the first portion 50 and the second portion 54.

[0067] The hydraulic module 30 is also called the brake unit. The hydraulic module 30 includes at least one solenoid valve (not shown). The hydraulic module 30 includes a control unit (not shown) and a compressor. The compressor includes a motor 56 and a rotor in a housing 58. Based on information from sensors, the control unit opens certain solenoid valves and increases the hydraulic fluid pressure in order to release or increase braking force.

[0068] Figure 3 shows a reinforcing plate 38 for the structure of a motor vehicle, according to an embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 2. The hydraulic module is not shown for the sake of clarity.

[0069] The reinforcing plate 38 comprises a lower portion 60 and an upper portion 62. The lower portion 60 forms a connecting plate from the front longitudinal member to the deck crossmember. The attachment area 46 is located within the lower portion 60. The upper portion 62 comprises at least one vertical partition raised above the attachment area 46. The upper portion 62 includes a longitudinal strip 64. The longitudinal strip 64 includes a stiffening boss. It is designed to bear against another wall of the structure.

[0070] The reinforcing plate 38 includes a vertical opening 66 between the fixing area 46 and the longitudinal strip 64. The opening 66 is open transversely. It extends longitudinally over at least half of the reinforcing sheet 38. The opening 66 makes it possible to lighten the reinforcing sheet 38. It also facilitates its manufacture.

[0071] The reinforcing plate 38 includes a lower flange 68 conforming to the apron crossmember 34 and the front side member 20. The lower flange 68 extends vertically. It is located in the lower portion 60. It forms the lower end of the reinforcing plate 38. The lower flange 68 extends along the first portion 50 and the second portion 54. The reinforcing plate includes an angled portion 70 connecting the first portion 50 to the second portion 54.

[0072] The reinforcing plate 38 includes at least one upper fixing tab 72 extending vertically from the fixing area 46; preferably longitudinally and / or transversely from the fixing area 46. At least one upper fixing tab 72 extends vertically. It forms the top of the reinforcing plate 38. Each upper fixing tab 72 includes a fixing hole or a fixing slot.

[0073] The at least one upper mounting bracket 72 comprises a front mounting bracket 74 and a rear mounting bracket 76, which are longitudinally spaced away from the mounting area 46. Thus, each upper mounting bracket 72 provides space for installing the hydraulic module. The front mounting bracket 74 is transversely and longitudinally spaced away from the mounting area 46. The rear mounting bracket 76 is intended to be attached to the hydraulic module, thereby improving its stability. Thus, the hydraulic module is attached to both the lower portion 60 and the upper portion 62.

[0074] The reinforcing plate 38 includes a rear stop 78 against the front apron (not shown) and longitudinally at a distance from the mounting area 46. The rear stop 78 is in the upper portion 62. It includes a rear boss 44 against the front apron. It allows for longitudinal positioning. The mounting area 46 is below the rear stop 78. The longitudinal strip 64 is perpendicular to the rear stop 78.

[0075] The reinforcing plate 38 is made from a material. It is produced by stamping. It is preferably weld-free. Its properties improve its dynamic resistance in the event of a collision. The mounting area 46 is horizontal in order to provide a stable position for supporting the hydraulic module. The mounting area 46 includes a plurality of vertical holes.

[0076] The reinforcing plate 38 includes a vertical joint 80 connecting the longitudinal strip 64 to the lower portion 60. The vertical joint 80 extends vertically at the opening 66. The vertical joint 80 is in front of the fastening area 46. It is in line with the front fastening tab 74. The reinforcing plate 38 further includes a longitudinal joint 82. The longitudinal joint 82 extends from the fixing area 46. It connects it to the rear stop 76. These junctions optimize the rigidity and mass of the reinforcing sheet 38.

[0077] Using the reinforcing plate as a support for the hydraulic module reduces the number of parts and fastening interfaces between the hydraulic module and the structure. The position of the hydraulic module is less constrained and can remain the same relative to its support on different models within a vehicle range. Thus, the same design of pipes and connectors can be used on several vehicle models. The invention promotes the standardization of equipment.

[0078] The reinforcing plate 38 has a thickness between 0.65 mm and 2.00 mm, preferably between 0.80 mm and 1.20 mm. The reinforcing plate 38 has a thickness equal to or greater than the plates of the front side member 20 and the apron crossmember 34. The plates of the front side member 20 and the apron crossmember 34 have equal thicknesses.

[0079] According to a preferred embodiment, the reinforcing plate 38 is made of a metallic material. It may comprise a sheet of fiber-reinforced plastic-based composite material. The metallic material comprises steel. According to an alternative of the invention, the material comprises an aluminum alloy.

[0080] Figure 4 shows a partial view of the left side of a motor vehicle structure 12, according to one embodiment of the invention. The motor vehicle may correspond to the one shown in relation to one of Figures 1 to 3. The structure 12 is partially shown for clarity. This side is opposite the reinforcing plate described previously.

[0081] The structure 12 is generally symmetrical. The reinforcing plate creates an asymmetry. The front side member is a first front side member. The structure 12 further includes a second front side member 84. The second front side member 84 is transversely opposite to the first front side member. It runs longitudinally alongside it. The first front side member and the second front side member are generally symmetrical. They are preferably identical. The deck crossmember 34 is symmetrical.

[0082] The deck crossmember 34 extends transversely to the second front side member 84. The reinforcing plate is a first reinforcing plate (not shown). The structure 12 further includes a second reinforcing plate 86. The second reinforcing plate 86 is joined to the deck crossmember 34 and to the second front side member 84. The second reinforcing plate 86 includes gripping holes. The second reinforcing plate 86 forms a reinforcing bracket. It limits deformations of the deck crossmember 34 at the base of the second front side member 84 in the event of a collision with partial overlap, for example, a transverse overlap of no more than 50%.

[0083] The first reinforcing plate is vertically larger than the second reinforcing plate 86. Thus, the second reinforcing plate 86 is lighter than the first. This aspect optimizes the mass and compactness of structure 12. This simplifies the integration of the steering system.

[0084] The first and second reinforcing plates are asymmetrical. The second reinforcing plate 86 preferably comprises a lower portion similar to that of the first reinforcing plate; it differs from it in that it is free of a mounting area for a hydraulic module. The upper surface 88 of the second reinforcing plate 86 is flat. Thus, the first reinforcing plate concentrates the adaptations necessary for the hydraulic module, which is placed on one side of the structure 12.

[0085] The invention comprises the combination of all the embodiments illustrated by all the figures.

[0086] Figures 2 to 4 are isometric views. They each respect a specific scale, real angles and real proportions.

Claims

Demands

1. Structure (12) of a motor vehicle (10), the structure (12) comprising: a passenger compartment (16), a front compartment (14) in front of the passenger compartment (16), a front bulkhead (18) between the front compartment (14) and the passenger compartment (16), a front side member (20) extending along the front compartment (14), a bulkhead crossmember (34) extending transversely along the front bulkhead (18) from the front side member (20); a reinforcing plate (38) joined to the bulkhead crossmember (34) and the front side member (20); characterized in that the reinforcing plate (38) comprises a mounting area (46) intended to be attached to a hydraulic module (30) of a braking system (22).

2. Structure (12) according to claim 1, characterized in that the deck cross member (34) comprises a first upper surface (48), the reinforcing plate (38) comprises a first portion (50) vertically against the first upper surface (48); the fixing zone (46) being vertically at a distance from the first portion (50).

3. Structure (12) according to any one of claims 1 to 2, characterized in that the front spar (20) comprises a second upper surface (52), the reinforcing plate (38) comprises a second portion (54) vertically against the second upper surface (52); the fixing area (46) being vertically at a distance from the second portion (54).

4. Structure (12) according to any one of claims 1 to 3, characterized in that the reinforcing sheet (38) comprises a lower portion (60), an upper portion (62) with a longitudinal band (64), the fixing zone (46) being in the lower portion (60); preferably, the reinforcing sheet (38) comprises a vertical opening (66) between the fixing zone (46) and the longitudinal band (64).

5. Structure (12) according to any one of claims 1 to 4, characterized in that the attachment area (46) is above the front longitudinal member (20) and transversely in line with the apron cross member (34); preferably, the reinforcing plate (38) comprises a lower flange (68) conforming to the apron cross member (34) and the front longitudinal member (20).

6. Structure (12) according to any one of claims 1 to 5, characterized in that the reinforcing plate (38) comprises at least one upper fixing tab (72) longitudinally and / or transversely at a distance from the fixing area (46); preferably, the at least one upper fixing tab (72) comprises a front fixing tab (74) and a rear fixing tab (76) which are longitudinally at a distance from the fixing area (46).

7. Structure (12) according to any one of claims 1 to 6, characterized in that the reinforcing plate (38) comprises a rear stop (78) against the front apron (18) and longitudinally at a distance from the fixing area (46); preferably, the fixing area (46) is under the rear stop (78).

8. Structure (12) according to any one of claims 1 to 7, characterized in that the front side member (20) is a first front side member, the structure (12) further comprises a second front side member (84), the deck cross member (34) extending transversely to the second front side member (84), the reinforcing plate (38) is a first reinforcing plate, the structure (12) comprises a second reinforcing plate (86) joined to the deck cross member (34) and to the second front side member (84), the first reinforcing plate being vertically larger than the second reinforcing plate (86).

9. Motor vehicle (10) comprising a structure (12) and a braking system (22) with a hydraulic module (30); characterized in that the structure (12) conforms to any one of claims 1 to 8; preferably, the braking system (22) comprises a hydraulic circuit (26) connected to the hydraulic module (30).

10. Motor vehicle (10) according to claim 9, characterized in that the hydraulic module (30) comprises at least one solenoid valve; preferably, the hydraulic module (30) comprises a computer and / or a compressor.

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