Modular system of multiple constructures for a side beam or a body of a

Abstract

The invention relates to a modular system for a plurality of structural forms of side rails (2) for a body (1) of a passenger car, having at least two structural-form-spanning profiles (3, 4) which are formed separately from one another and which each have a respective lateral surface (S1, S2) with a respective recess (10, 11), the profiles (3, 4) can be connected to each other to form a corresponding structural pattern such that the side surfaces (S1, S2) face each other in the interconnected state of the profiles (3, 4) and the recesses (10, 11) of the profiles (3, 4) form receptacles (12) of the side rails (2); the modular system has at least one structural form-specific reinforcing element (7) formed separately from the profiles (3, 4), which reinforcing element can be selectively arranged in or to be omitted from the receptacle (12), such that in a first of the structural forms, the reinforcing element (7) is arranged in the receptacle (12), and in a second of the structural forms, the reinforcing element (7) is arranged in the receptacle (12), and in a third of the structural forms, the reinforcing element (7) is arranged in the receptacle (12). In a second one of the forms, the receptacle (12) is free of structural elements formed separately from the profiles (3, 4).

Description

TECHNICAL FIELD

[0001] The invention relates to a modular system for a plurality of structural versions of a side beam of a body of a passenger car. The invention also relates to a modular system for a plurality of structural versions of a body of a passenger car. BACKGROUND

[0002] EP 2 976 250 B1 discloses a side beam for a vehicle body. DE 10 2017 124 391 A1 also discloses a side beam member for a side beam of a vehicle body. DE 10 2021 001 103 B4 also discloses a side beam arrangement for a motor vehicle. SUMMARY

[0003] It is the task of the invention to realize a modular system, with which a plurality of structural versions of a side beam or of a body of a passenger car can be realized in a particularly simple, time-saving and inexpensive manner.

[0004] The stated task is solved by a modular system having the features of claim 1 and by a modular system having the features of claim 14. Advantageous embodiments of the invention are the subject of the dependent claims.

[0005] A first aspect of the invention relates to a modular system for a plurality of structural versions, in particular for a plurality of mutually different structural versions, of a side beam for a body of a passenger car, also referred to as an upper structure and preferably constructed as a self-supporting body, of an interior of a passenger car, also referred to as a passenger compartment, passenger room or passenger cabin, which in the fully finished state of the passenger car is constituted by the body. During the driving of the passenger car, persons, for example the driver of the passenger car, can stay in the interior. Since by means of the modular system according to the first aspect of the invention each structural version of a side beam can be realized, a plurality of structural versions, in particular mutually different structural versions, of a body can be realized.

[0006] The modular system according to the first aspect of the present application has at least two profiles of a cross-sectional pattern and constructed separately from each other, namely a first profile and a second profile. The respective profiles have respective side faces, which have respective recesses. The respective recesses of the respective profiles, when considered separately, are for example configured as respective depressions. In order to form the respective cross-sectional pattern of a side beam, also referred to as side beam in short, the profiles are connected to each other. This means that, in order to manufacture a first cross-sectional pattern among the cross-sectional patterns and in order to manufacture a second cross-sectional pattern among the cross-sectional patterns, the profiles are connected to each other such that in the respective manufactured cross-sectional pattern the profiles are connected to each other. For example, the profiles are materially bonded to each other. For example, the profiles are welded to each other and / or bonded to each other and thus connected to each other. Alternatively or additionally, the profiles can be connected to each other in other ways. In the respective cross-sectional pattern, in the connected state of the profiles, that is to say in the fully manufactured state of the respective cross-sectional pattern, the profiles take their connected state, the side faces are oriented towards each other such that in the connected state of the profiles and thus in the respective cross-sectional pattern of the side beam, the recesses form a receiving portion of the side beam, namely of the respective cross-sectional pattern of the side beam. This means that, in the connected state of the profiles, for example the recess of the first profile forms a first portion of the receiving portion and the recess of the second profile forms a second portion of the receiving portion, such that in the connected state of the profiles and thus in the respective cross-sectional pattern the receiving portion is composed of the portions.

[0007] The modular system according to the first aspect of the application also has at least one or exactly one structure-type-specific reinforcing element, which is formed separately from the profiles. The feature "the profiles are cross-structure-type" can be understood such that the profiles are used for a first structure type and for a second structure type, thus the first structure type and the second structure type are adopted, thus the first structure type and the second structure type have the same profiles. The feature "the reinforcing element is structure-type-specific" can be understood such that, for example, with respect to the first structure type and the second structure type, only one of the structure types, in particular only the first structure type, has the reinforcing element. For this purpose, the reinforcing element is selectively able to be arranged in the receiving portion or is to be omitted from the receiving portion, such that in the first structure type the reinforcing element is arranged in the receiving portion. This means that the first structure type of the side member has the profiles and the reinforcing element arranged in the receiving portion, and the profile or the side member element of the side member formed by the mutually connected profiles is reinforced by means of the reinforcing element. In the second structure type, the receiving portion has no structure element formed separately from the profiles, such that in the second structure type neither the reinforcing element nor other element formed separately from the profiles is arranged in the receiving portion. Also in the second structure type, the mutually connected profiles form the side member element, which is also not reinforced by the reinforcing element in the second structure type. It can be seen that the side member element can be selectively reinforced by the reinforcing element and thus can be made stronger, or the reinforcing element is to be omitted, such that the first structure type can have a higher stiffness compared to the second structure type, and the second structure type can have a smaller weight compared to the first structure type. Thus, the side member or the structure types can be manufactured as required, such that different body types of the vehicle body can be manufactured. A first body type of the body types of the vehicle body comprises, for example, the first structure type of the side member, and a second body type of the body types of the vehicle body comprises, for example, the second structure type of the side member.

[0008] The application is based, inter alia, on the recognition and consideration that different body types usually require differently adapted side members due to their different weights and / or due to their different structures. In order to meet these different requirements, an increased material usage is often employed, in particular by means of a higher wall thickness. Thus, although a sufficiently high stiffness of the vehicle body can be achieved, this can also result in an undesirably high weight of the vehicle body. In contrast, the present application now allows the side member and thus the vehicle body to be selectively constructed particularly rigidly or particularly weight-advantageously, thus the structure types of the side member and thus the body types can be implemented as required and thus time-saving and inexpensively.

[0009] Because in the fully manufactured state of the first structural form, the reinforcing element is disposed in the receiving portion and therefore in the side beam element, and the reinforcing element serves, for example, as a core, the side beam element in the first structural form is reinforced by means of the core. Compared to the first structural form, in the second structural form, the amount of material used and therefore the cost can be kept small or reduced.

[0010] In order to enable different structural forms of the side beams in a particularly inexpensive and weight-efficient manner, in one embodiment of the invention, the corresponding profiles are configured as extruded profiles.

[0011] Another embodiment is characterized in that the corresponding profile is made of a corresponding first material.

[0012] It has proven particularly advantageous that the first material is a lightweight metal alloy, especially an aluminum alloy. Therefore, not only the first structural type of the side beams but also the second structural type can be implemented in a particularly weight-advantageous manner. Therefore, it is preferred that the corresponding profiles be constructed as corresponding aluminum extrusion profiles.

[0013] In another particularly advantageous embodiment of the invention, the reinforcing element is made of a second material different from the first material. Therefore, in the first structural form, but not in the second structural form, the side beam element can be reinforced particularly well.

[0014] In order to provide particularly good reinforcement of the side beam elements in the first structural configuration, in another embodiment of the invention, the second material is specified to be a metallic material.

[0015] Preferably, the metal material is steel, so the side beam element can be particularly advantageously reinforced in the first structural form. The reinforcing element is a steel core, and therefore, for example, when used as a steel core, the side beam element can be reinforced particularly well by means of the steel core.

[0016] To provide particularly advantageous weight reinforcement for the side beam element in the first structural configuration, in another embodiment of the invention, the second material is specified as fiber-reinforced plastic. This means that the fiber-reinforced plastic has a matrix, also referred to as a plastic matrix and composed of plastic, in which reinforcing fibers are embedded. The reinforcing fibers may include, or be comprised of, carbon fibers and / or glass fibers. Thus, for example, the fiber-reinforced plastic is carbon fiber reinforced plastic or glass fiber reinforced plastic.

[0017] In order to achieve different structural forms at a particularly low cost, in another embodiment of the invention, it is specified that each profile is made of the same material, preferably a metal material.

[0018] A further embodiment is characterized in that the profile structures are identically configured. A high number of common parts can thus be realized, so that different structural versions of the side beam can be realized particularly inexpensively.

[0019] In a further particularly advantageous embodiment of the application, the reinforcing element is a first reinforcing element. Here, the modular system has a second reinforcing element which is configured separately from the profiles and separately from the first reinforcing element, which is optionally arranged in the receiving part or omitted from the receiving part. Thus, in the first structural version, the first reinforcing element is arranged in the receiving part, and the receiving part is free of the second reinforcing element in the first structural version. Preferably, in the first structural version, the receiving part is free of a structural element which is arranged in addition to the first reinforcing element and which is configured separately from the profiles and separately from the first reinforcing element. In the second structural version, the receiving part is free of a structural element which is configured separately from the profiles, so that in the second structural version neither the first reinforcing element nor the second reinforcing element is arranged in the receiving part, and in the second structural version no further structural element which is configured separately from the profiles is arranged in the receiving part. In a third structural version of the side beam, the second reinforcing element is arranged in the receiving part, and the receiving part is free of the first reinforcing element in the third structural version. Particularly preferably, in the third structural version, the receiving part is free of a structural element which is arranged in addition to the second reinforcing element and which is configured separately from the second reinforcing element and separately from the profiles. The explanations given above and below for the first reinforcing element can also be easily transferred to the second reinforcing element, and vice versa.

[0020] For example, in the first structural version, the first reinforcing element is connected to the profiles, in particular materially and / or force-lockingly and / or form-lockingly. It is additionally conceivable that, in the third structural version, the second reinforcing element is connected to the profiles materially and / or form-lockingly and / or force-lockingly. Thus, the side beam element can advantageously be reinforced in the first or third structural version.

[0021] In order to be able to enhance the side beam elements composed of the mutually connected profiles in particular in a needs-oriented manner in the first construction type and in the third construction type, respectively, it is provided in a further aspect of the application that the respective reinforcing elements differ from one another in their shape, in particular in the shape of their outer circumference. It is alternatively or additionally provided that the respective reinforcing elements differ from one another in the material from which they are made. It is alternatively or additionally provided that the respective reinforcing elements differ from one another in the heat treatment process to which they are subjected. For example, one of the reinforcing elements among the respective reinforcing elements is subjected to a heat treatment process, while the other reinforcing element is not subjected to a heat treatment process. It is further conceivable that the first reinforcing element is subjected to a first heat treatment process and the second reinforcing element is subjected to a second heat treatment process which differs from the first heat treatment process. Thus, the respective reinforcing elements differ from one another in their quality, so that the side beam elements can be enhanced in different ways and thus in a needs-oriented manner in the first construction type and in the third construction type.

[0022] Finally, it has proven to be particularly advantageous if the respective profile has a plurality of cavities separate from one another in its respective interior. Thus, in a cheap and weight-advantageous manner, a favorable high stiffness of the respective profile can be achieved when viewed separately for the respective profile.

[0023] A second aspect of the application relates to a modular system for a plurality of construction types, in particular different construction types, of a body of a passenger car, each construction type of the body also being referred to as a body type.

[0024] The modular system according to the second aspect of the application has at least two profile parts of a cross-sectional type which are formed separately from one another, which have respective side faces, which have respective recesses, and which can be connected to one another in order to form a side sill of a vehicle body, such that in the connected state of the profile parts the respective side faces face one another and the recesses of the profile parts form receiving parts of the side sill. The modular system according to the second aspect of the application also has at least one reinforcing element of the cross-sectional type which is formed separately from the profile parts, which can be provided in the receiving parts or omitted from the receiving parts, such that in a first vehicle body type among the vehicle body types the reinforcing element is provided in the receiving parts and in a second vehicle body type among the vehicle body types the receiving parts are free of the reinforcing element formed separately from the profile parts. The first vehicle body type thus has the profile parts and the reinforcing element provided in the receiving parts, and the second vehicle body type has the profile parts but is free of the reinforcing element formed separately from the profile parts provided in the receiving parts. The first vehicle body type thus has a first cross-sectional type of the side sill, and the second vehicle body type has a second cross-sectional type of the side sill. Different vehicle body types can thus be realized in a simple, time-saving and inexpensive manner. In particular, the vehicle body types can be produced, for example, in accordance with the respective weight of the respective vehicle body type. The advantages and advantageous solutions of the first aspect of the application can be considered advantages and advantageous solutions of the second aspect of the application, and vice versa. BRIEF DESCRIPTION OF DRAWINGS

[0025] Further details of the application result from the following description of preferred embodiments in conjunction with the drawings. The drawings show the following:

[0026] Figure 1 schematic perspective view of a first cross-sectional type of a vehicle body of a passenger car, also referred to as a first vehicle body type;

[0027] Figure 2 schematic perspective view of a first cross-sectional type of a side sill, which is used in the first vehicle body type;

[0028] Figure 3 schematic cross-sectional view of the first cross-sectional type of the side sill;

[0029] Figure 4 schematic cross-sectional view of a second cross-sectional type of the side sill;

[0030] Figure 5 schematic cross-sectional view of a third cross-sectional type of the side sill;

[0031] Figure 6 schematic cross-sectional view of a fourth cross-sectional type of the side sill; and

[0032] Figure 7Schematic cross-sectional view of a third construction type of a side sill, partially shown.

[0033] In the drawings, identical or similar elements are provided with identical reference signs. DETAILED DESCRIPTION

[0034] Figure 1 A first body type of a body 1 of a passenger car, also referred to as vehicle, is shown in a schematic perspective view, partially, the body being configured as a self-supporting body, an interior of the passenger car, also referred to as passenger compartment, passenger cabin or passenger cell, being constituted by the body 1 in a fully finished state of the passenger car. This means that the passenger car, or the first vehicle type of the passenger car, has the first body type in its fully finished state. The body 1 has two side sills spaced apart from each other in a vehicle transverse direction of the passenger car, one of the two side sills being visible in Figure 1 and denoted by the reference sign 2. For manufacturing the first body type of the body 1, a respective first construction type of the side sill 2 is employed. In the following, a modular system is explained by means of which a plurality of mutually different construction types of the side sill 2 can be manufactured, both the first construction type of the side sill 2 mentioned and a second construction type, a third construction type and a fourth construction type. For realizing a second body type of the body 1, a second construction type of the side sill 2 is employed. For realizing a third body type of the body 1, a third construction type of the side sill 2 is employed, and for realizing a fourth body type of the body 1, a fourth construction type of the side sill 2 is employed.

[0035] The first construction type of the side sill 2 is described in Figure 2 . As can be seen from Figures 2-7 , the modular system has at least two or exactly two profile sections, namely a first profile section 3 and a second profile section 4, which are constituted separately from each other across construction types. The feature "profile sections 3 and 4 are across construction types" can be understood in that the first construction type, the second construction type, the third construction type and the fourth construction type of the side sill 2 have identical profile sections 3 and 4. The respective profile sections 3, 4 are currently extruded profile sections and are constituted by an aluminum alloy, so that the respective profile sections 3, 4 are constituted as respective aluminum extruded profile sections. Furthermore, as can be seen from Figure 2 , the profile sections 3 and 4 are structurally identical, for example the profile sections 3 and 4 are mirror-symmetrical to each other in the respective construction type of the side sill 2. As can be seen from Figure 2 , the respective profile sections 3, 4 have a plurality of chambers 6 in their respective interior 5, the chambers 6 of the respective profile sections 3, 4 being separated from each other by respective partition walls constituted as solids. The respective profile sections 3, 4 are constituted in one piece, thus integrally. This means that the respective profile sections 3, 4 are constituted by one unique component, so that the respective profile sections 3, 4 are constituted by one one-piece, thus by one unique component, and thus integrally manufactured and thus constituted as a monolith.

[0036] Furthermore, the modular system has a plurality of reinforcing elements, namely a first reinforcing element 7, a second reinforcing element 8 and a third reinforcing element 9, which are formed separately from the profiles 3 and 4 and separately from one another. The reinforcing elements 7, 8 and 9 are explained in more detail below. The respective profile 3, 4 has a respective side face, which has a respective recess, wherein the side face of the profile 3 is denoted by S1 and the side face of the profile 4 is denoted by S2. The recess provided on the side face S1 of the profile 3 is denoted by 10 and the recess provided on the side face S2 of the profile 4 is denoted by 11. It can be seen that the respective recess 10, 11 provided on the respective side face S1, S2 of the respective profile 3, 4 is formed as a recess on the respective side face S1, S2 of the respective profile 3, 4, which respective recess 10, 11 is formed concavely. In the embodiment shown in the figures, the respective recess 10, 11 is formed semicircularly in its respective cross section. In order to form the respective construction type of the side beam 2, the profiles 3 and 4 are connected to one another or can be connected to one another. This means that, in the completely finished state of the respective construction type of the side beam 2, the profiles 3 and 4 formed separately from one another are connected to one another such that the side faces S1 and S2 are directed towards one another and the recesses 10 and 11 form a receiving portion 12, also referred to as a total receiving portion. This means that, in the completely finished state of the respective construction type of the side beam 2, the recess 10 is a first portion of the receiving portion 12 and the recess 11 is a second portion of the receiving portion 12, which receiving portion is formed from the first portion and the second portion. Thus, in the embodiment shown in the figures, the receiving portion 12 is formed circularly in its cross section in the respective construction type.

[0037] Figure 2 and 3 A first construction type of the side beam 2 is shown. Figure 4 A second construction type of the side beam 2 is shown. Figure 5 A third construction type of the side beam 2 is shown, and Figure 6 A fourth construction type of the side beam 2 is shown. By Figure 2 and 7It can be seen that the respective reinforcing elements 7, 8 and 9 can be arranged in the receiving portion 12 or omitted from the receiving portion 12 in a selective manner, so that in the first construction variant the reinforcing element 7 is arranged in the receiving portion 12. In the second construction variant, the receiving portion is free of structural elements which are formed separately from the profiles 3 and 4. In the third construction variant, the reinforcing element 8 is arranged in the receiving portion 12, and in the fourth construction variant, the reinforcing element 9 is arranged in the receiving portion 12. In the first construction variant, no further, additional structural elements are arranged in the receiving portion 12, in addition to the reinforcing element 7, which are formed separately from the profiles 3 and 4 and separately from the reinforcing element 7. The same applies to the third and fourth construction variants. In the third construction variant, no further, additional structural elements are arranged in the receiving portion 12, in addition to the reinforcing element 8, which are formed separately from the profiles 3 and 4 and separately from the reinforcing element 8; and in the fourth construction variant, no further, additional structural elements are arranged in the receiving portion 12, in addition to the reinforcing element 9, which are formed separately from the profiles 3 and 4 and separately from the reinforcing element 9.

[0038] In the embodiment shown in the drawing, the respective reinforcing elements 7, 8, 9 are formed from steel, it being conceivable that the reinforcing elements 7, 8 and 9 are each formed from the same steel. It is further conceivable that at least two of the reinforcing elements 7, 8 and 9 are formed from different materials from one another, in particular from different metal materials from one another and in particular especially from different steels from one another. It is further conceivable that at least one or precisely one of the reinforcing elements 7, 8 and 9 is formed from a fibre-reinforced plastic.

[0039] The reinforcing elements 7 and 9 differ from one another, for example, in their wall thickness, also referred to as wall thicknesses. The reinforcing element 7 has a first wall thickness, and the reinforcing element 9 has a second wall thickness, which is currently greater than the first wall thickness. It can be considered here, in particular, that the reinforcing elements 7 and 9 are composed of the same material, in particular of the same metallic material and, in particular, of the same steel. It can be seen that the reinforcing elements 7 and 8 differ from one another in their shape, in particular in the shape of their outer peripheral side. Furthermore, the reinforcing elements 8 and 9 differ from one another in their shape, in particular in the shape of their outer peripheral side. It can be seen that the reinforcing element 8 is composed, in its cross section, rod-shaped or bone-shaped and has, here, two side regions 13 between which a middle region 14 of the reinforcing element 8 is arranged, which interconnects the two side regions. The two side regions 13 and the middle region 14 are composed of one single piece, for example, that is to say, they are composed of one unique component. In particular, the reinforcing element 8 is composed, in the present case, mirror-symmetrically with respect to at least two or exactly two symmetry planes, which extend perpendicularly to one another. The reinforcing element 8 tapers from a first one of the two side regions 13 toward the middle region 14 and widens again from the middle region 14 toward the other one of the two side regions 13. The respective reinforcing elements 7, 9 have a circular cross section. The cross section of the reinforcing element 8 has a shape which differs from a circle. Preferably, the respective reinforcing elements 7, 8, 9 are connected to the profiles 3 and 4, in particular material-locked and / or force-locked and / or form-locked.

[0040] The respective profile 3, 4 has a plurality of respective wall regions, namely a respective first wall region and a respective second wall region, each wall region being arranged next to, in particular directly next to, a respective recess 10, 11 of the respective profile 3, 4, the respective recess 10, 11 of the respective profile 3, 4 being arranged between the respective first wall region of the respective profile 3, 4 and the respective second wall region of the respective profile 3, 4. Here, the first wall regions of each profile 3 and 4 are directed toward one another, and the second wall regions of each profile 3, 4 are directed toward one another. In particular, the first wall regions of each profile 3 and 4 are connected to one another, in particular directly to one another, and, in particular, the second wall regions of each profile 3 and 4 are connected to one another, in particular directly to one another. For example, the first wall regions are connected to one another material-locked, in particular welded and / or bonded to one another. For example, the second wall regions are connected to one another material-locked, in particular bonded and / or welded to one another. It is also conceivable that the first wall regions are connected to one another force-locked, in particular screwed to one another. It is also conceivable that the second wall regions are connected to one another force-locked, in particular screwed to one another.

[0041] Due to the profiles 3, 4 being structurally identical to one another and due to the first, second, third and fourth structural versions of the side member 2 having identical profiles 3, 4, a high number of common parts can be achieved, so that different structural versions of the side member 2 and thus different body versions can be realized in a simple, time-saving and inexpensive manner. Because the reinforcing elements 7, 8 and 9 can be selectively provided in the receptacle 12 or omitted from the receptacle 12 and because the reinforcing elements 7, 8 and 9 differ from one another, in particular in pairs, in particular in their mechanical properties, different properties, in particular mechanical properties, of the structural versions of the side member 2 and thus of the body versions can be produced in a simple, inexpensive and weight-advantageous manner. The structural versions and thus the body versions can differ from one another, in particular in their accident properties, so that the accident properties can be set or said to be influenced in a targeted manner.

[0042] Because in the embodiment shown in the drawing the respective reinforcing element 7, 8, 9 is provided in the receptacle 12, the reinforcing elements 7, 8 and 9 are embedded in the side member element 15 constituted by the mutually connected profiles 3, 4 in the respective structural version. The respective reinforcing element 7, 8, 9 is or thus serves as a core which is provided, in particular embedded, in the respective side member element 15. In the second structural version of the side member 2 shown in the drawing Figure 4 , the receptacle 12 and thus the side member element 15 has no structural element which is constituted separately from the profiles 3 and 4 and provided in the receptacle 12. Because the side member element 15 is constituted by the profiles 3 and 4, the side member element 15 is a two- or more-part extruded profile, in particular an aluminum extruded profile, which is reinforced by the respective reinforcing element 7, 8, 9 in the first, third and fourth structural version and which has no structural element provided in the receptacle 12 which is constituted separately from the profiles 3 and 4 and thus has a very small weight in the second structural version. It is further conceivable that at least two of the reinforcing elements 7, 8 and 9, in particular the reinforcing elements 7 and 9, have different qualities and for this purpose differ from one another, for example, in the heat treatment process to which said reinforcing elements 7 and 9 are subjected. The different properties, in particular mechanical properties, of the side member 2 can thus be set as desired.

[0043] Figure 7 The third structural version of the side member 2 with the reinforcing element 8 is shown in a schematic perspective view.

[0044] List of reference signs

[0045] 1 body

[0046] 2 side member

[0047] 3 profile

[0048] 4 profile

[0049] 5 interior

[0050] 6 cavity

[0051] 7 reinforcing element

[0052] 8 reinforcing element

[0053] 9 reinforcing element

[0054] 10 recess

[0055] 11 recess

[0056] 12 receiving portion

[0057] 13 side region

[0058] 14 intermediate region

[0059] 15 side beam element

[0060] S1 side

[0061] S2 side

Claims

1. Modular system for a plurality of structural versions of a side beam (2) for a body (1) of a passenger car, having at least two profile parts (3, 4) which are formed separately from one another and which each have a respective side face (Sl, S2) with a respective recess (10, 11) and which can be connected to one another to form a respective structural version such that in the connected state of the profile parts (3, 4) the side faces (Sl, S2) face one another and the recesses (10, 11) of the profile parts (3, 4) form a receiving part (12) of the side beam (2), and having at least one structural-version-specific reinforcing element (7) which is formed separately from the profile parts (3, 4) and which can be provided in the receiving part (12) or omitted from the receiving part (12) such that in a first structural version among the structural versions the reinforcing element (7) is provided in the receiving part (12) and in a second structural version among the structural versions the receiving part (12) is free of structural elements formed separately from the profile parts (3, 4).

2. The modular system of claim 1, wherein, The respective profile parts (3, 4) are formed as extruded profiles.

3. The modular system according to claim 1 or 2, characterized in that, The respective profile parts (3, 4) are formed from a respective first material.

4. The modular system of claim 3, wherein, The first material is a light metal alloy.

5. The modular system according to claim 3 or 4, characterized in that, The reinforcing element (7) is formed from a second material which is different from the first material.

6. The modular system of claim 5, wherein, The second material is a metal material.

7. The modular system of claim 6, wherein, The metal material is steel.

8. The modular system according to claim 5, characterized in that, The second material is a fiber-reinforced plastic.

9. The modular system according to any of the preceding claims, characterized in that, The profile parts (3, 4) are formed from the same material.

10. The modular system according to any of the preceding claims, characterized in that, The profile parts (3, 4) are formed identically.

11. The modular system according to any of the preceding claims, characterized in that, A structural-version-specific second reinforcing element (8) is included which is formed separately from the profile parts (3, 4) and separately from the reinforcing element (7) as a first reinforcing element and which can be provided in the receiving part (12) or omitted from the receiving part (12) such that: - in the first structural version the first reinforcing element (7) is provided in the receiving part (12) and the receiving part (12) is free of the second reinforcing element (8); - in the second structural version the receiving part (12) is free of structural elements formed separately from the profile parts (3, 4); and - in the third structural version the second reinforcing element (8) is provided in the receiving part (12) and the receiving part (12) is free of the first reinforcing element (7).

12. The modular system of claim 11, wherein, The reinforcing elements (7, 8) differ from one another in terms of their shape, and / or in terms of the material used to form the reinforcing elements, and / or in terms of the heat treatment process to which the reinforcing elements (7, 8) are subjected.

13. The modular system according to any of the preceding claims, characterized in that, The respective profile parts (3, 4) have a plurality of cavities (6) in their respective interiors (5) which are separated from one another.

14. Modular system for a plurality of construction types of a body (1) of a passenger car, having at least two profile parts (3, 4) which are formed separately from one another across construction types, each of which has a respective side face (Sl, S2) with a respective recess (10, 11) and which can be connected to one another to form a side beam (2) of the body (1) in such a way that in the connected state of the profile parts (3, 4) the side faces (Sl, S2) face one another and the recesses (10, 11) of the profile parts (3, 4) form a receiving part (12) of the side beam (2), and having at least one construction-type-specific reinforcing element (7) which is formed separately from the profile parts (3, 4) and which can be provided in the receiving part (12) or omitted from the receiving part (12) in such a way that in a first construction type among the construction types the reinforcing element (7) is provided in the receiving part (12) and in a second construction type among the construction types the receiving part (12) is free of a construction element formed separately from the profile parts (3, 4).

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