Vehicle structure

Abstract

A vehicle structure (100, 300) comprising a portion (102) including first and second members (108, 112) that form a closed space (120). This portion (102) includes first and second reinforcing members (122, 126) that are attached to each other and are located within the closed space (120). The first and second legs (130, 136) of the first reinforcing member (122) are corrugated and include corrugated portions (150, 152), and the corrugated portions include a raised portion (150) and a groove portion (152). Each of the first and second legs (130, 136) of the first reinforcing member (122) has an outer surface (154). On the outer surface (154), each of one or more of the raised portions (150) of the first leg (130) of the first reinforcing member (122) has a recess (158) at a first position (160). The first leg (130) of the first reinforcing member (122) has one or more inclined portions (162) in one or more directions (164) intersecting the longitudinal direction (106) so as to form a recess (158) at the first position (160).

Description

Technical Field

[0001] Aspects of the present invention relate to a vehicle structure having a portion with a longitudinally extending longitudinal extension. This portion includes a first member having a longitudinally extending longitudinal extension and a second member having a longitudinally extending longitudinal extension. The first and second members are attached to each other such that the first and second members form a closed space.

Background Art

[0002] In the design of the frame portion of a motor vehicle, there is a compromise between weight and strength. For example, an advantageous way to obtain a good compromise is to produce the frame portion from one or more metal plates or metal alloy plates formed in a required shape, such as a hat-shaped outer profile.

[0003] Generally, the frame portion of a motor vehicle is formed to have a certain rigidity since it can be subjected to various impacts from the outside. At the same time, some frame portions must allow deformation in order to absorb shocks when overloaded, for example, due to a collision with an external object, such as another vehicle or a stationary object, such as a tree. An example of a vehicle frame portion that must be allowed to deform while being rigid to absorb shocks is a vehicle side sill structure, or a bumper or bumper beam.

Summary of the Invention

Means for Solving the Problems

[0004] The inventors of the present invention have found drawbacks in conventional vehicle frame portions, such as those described above. For example, some conventional solutions do not provide sufficient deformation to absorb shocks while being sufficiently rigid.

[0005] It is an object of the present invention to provide a solution that alleviates or solves the drawbacks and problems of conventional solutions.

[0006] The above object, and further objects, are solved by the subject matter of the independent claims. Further advantageous embodiments of the invention are found in the dependent claims.

[0007] According to a first aspect of the invention, the above object, and other objects, are achieved by a vehicle structure comprising a portion having a longitudinally extending longitudinal extension, the portion comprising a first member having a longitudinally extending longitudinal extension, a second member having a longitudinally extending longitudinal extension and being provided with the first member being configured to face the inside of the vehicle, the second member being configured to face the outside of the vehicle, the first member and the second member being attached to each other such that the first member and the second member form an enclosed space, the portion comprising a first reinforcing member located within the enclosed space and having a longitudinally extending longitudinal extension, the portion comprising a second reinforcing member located within the enclosed space and having a longitudinally extending longitudinal extension, the first reinforcing member being attached to the second reinforcing member, the first reinforcing member having a first leg having an intersecting extension extending in a direction intersecting the longitudinal direction, the first reinforcing member having a second leg having an intersecting extension extending in a direction intersecting the longitudinal direction, each of the first leg and the second leg of the first reinforcing member having a foot having a longitudinally extending longitudinal extension, the feet of the first leg and the second leg of the first reinforcing member being spaced apart from each other, the first leg and the second leg of the first reinforcing member being joined at a first head section, the first head section facing one of the first member and the second member, while the feet of the first leg and the second leg of the first reinforcing member face the other of the first member and the second member, Each of the first leg portion and the second leg portion of the first reinforcing member is pleated, has a pleat portion, and each pleat portion of the first leg portion and the second leg portion of the first reinforcing member includes a raised portion and a groove portion. Each of the raised portion and the groove portion of the first reinforcing member extends from the first head section to one of the foot portions of the first leg portion and the second leg portion of the first reinforcing member. Each of the first leg portion and the second leg portion of the first reinforcing member has an outer surface. Each of the first leg portion and the second leg portion of the first reinforcing member has an inner surface facing the inner surface of the other of the first leg portion and the second leg portion of the first reinforcing member. On the outer surface, each of one or more of the raised portions of the first leg portion of the first reinforcing member has a recess at the first position. The first leg portion of the first reinforcing member has one or more inclined portions in one or more directions intersecting the longitudinal direction so as to form a recess at the first position.

[0008] An advantage of the vehicle structure according to the first aspect of the present invention is that while maintaining or improving the rigidity and reinforcement of the vehicle structure to prevent penetration during a collision, for example, a side collision or a side impact, an advantageous deformation of the vehicle structure for absorbing an impact is provided. An advantage of the vehicle structure according to the first aspect of the present invention is that the movement and load distribution of the vehicle structure during a collision can be efficiently controlled, that is, the manner and / or the crushing manner of the deformation of the vehicle structure during a collision can be efficiently controlled. An advantage of the vehicle structure according to the first aspect of the present invention is that the energy absorption by the vehicle structure during a collision is improved. For example, the vehicle structure is sufficiently rigid and reinforced to prevent the penetration of an external object into the vehicle during a collision, and yet the vehicle structure provides high energy absorption during a collision.

[0009] The advantage of the vehicle structure according to the first aspect of the present invention is that the weight and cost of the vehicle structure can be reduced while maintaining or even improving the rigidity and reinforcement of the vehicle structure. The advantage of the vehicle structure according to the first aspect of the present invention is that, for example, since the vehicle structure can be deformed in a more controlled and predictable manner, the performance of the vehicle structure during a collision is improved, thereby providing an improved vehicle structure.

[0010] The vehicle structure can be a vehicle structure for an automotive vehicle equipped with a combustion engine, an electric vehicle or a hybrid vehicle having one or more electric batteries. For example, the vehicle can be a car or a truck. The vehicle structure can be configured to protect the electric battery of an electric vehicle or a hybrid vehicle, for example, during a collision. The vehicle structure can be located on one or more sides of the electric battery located within the vehicle. The vehicle structure is efficient in protecting the electric battery, the driver and / or one or more passengers of the vehicle during a collision.

[0011] The vehicle structure is efficient as protection against a pole collision or a head-on collision. The vehicle structure is efficient in preventing the penetration of the pole into the vehicle during a pole collision. Thus, the vehicle structure provides efficient penetration resistance, that is, the vehicle structure is efficient in preventing the penetration of an external object into the vehicle during a collision. This is an important aspect with respect to electric battery protection.

[0012] The above-mentioned "closed space" also includes a substantially or essentially closed space. For example, one or more small openings may exist at the ends of the walls and / or parts of the vehicle structure that form the closed space.

[0013] According to an advantageous embodiment of the vehicle structure according to the first aspect, the recesses of the first legs of the first reinforcing member at the first position are longitudinally aligned with each other. The advantages of this embodiment are that while maintaining or improving the rigidity and reinforcement of the vehicle structure, the deformation of the vehicle structure for absorbing impact is further improved. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0014] According to another advantageous embodiment of the vehicle structure according to the first aspect, on the outer surface, each of one or more of the raised portions of the second leg of the first reinforcing member has a recess at the second position. The advantages of this embodiment are that while maintaining or improving the rigidity and reinforcement of the vehicle structure, the deformation of the vehicle structure for absorbing impact is further improved. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0015] According to still another advantageous embodiment of the vehicle structure according to the first aspect, the recesses of the second legs of the first reinforcing member at the second position are longitudinally aligned with each other. The advantages of this embodiment are that while maintaining or improving the rigidity and reinforcement of the vehicle structure, the deformation of the vehicle structure for absorbing impact is further improved. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0016] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the first reinforcing member defines an inner space between the first leg and the second leg of the first reinforcing member, and the second position faces one of the first positions with the inner space therebetween. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0017] According to an advantageous embodiment of the vehicle structure according to the first aspect, the second leg portion of the first reinforcing member has one or more inclined portions in one or more directions intersecting the longitudinal direction so as to form a recess at the second position. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0018] According to an advantageous embodiment of the vehicle structure according to the first aspect, the first head section faces the second member, while the feet of the first and second leg portions of the first reinforcing member face the first member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0019] According to a further advantageous embodiment of the vehicle structure according to the first aspect, one or more of the feet and portions of the first and second leg portions of the first reinforcing member are attached to the second reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0020] According to another advantageous embodiment of the vehicle structure according to the first aspect, the first head section comprises a reinforcing structure having a longitudinal extension extending in the longitudinal direction so as to reinforce the first head section. The advantage of this embodiment is that the rigidity and reinforcement of the vehicle structure are further improved while maintaining or improving the deformation of the vehicle structure for absorbing impact. The advantage of this embodiment is that the deformation can be designed and predicted in an improved manner while maintaining or improving the rigidity and reinforcement of the vehicle structure. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0021] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the reinforcing structure comprises one or more patches having longitudinally extending longitudinal extensions. The advantage of this embodiment is that the rigidity and reinforcement of the vehicle structure are further improved while maintaining or improving the deformation of the vehicle structure for absorbing impact. The advantage of this embodiment is that the deformation can be designed and predicted in an improved manner while maintaining or improving the rigidity and reinforcement of the vehicle structure. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0022] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the first head section has an outer surface, the first head section has an inner surface facing the inner surfaces of the first leg and the second leg of the first reinforcing member, the patch is attached to the inner surface of the first head section. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0023] According to an advantageous embodiment of the vehicle structure according to the first aspect, the patch is made of a first material, and the first leg and the second leg of the first reinforcing member and the first head section are made of a second material different from the first material. The advantage of this embodiment is that a further improved deformation of the vehicle structure for absorbing impact is provided so that, for example, the deformation can be designed and predicted in an improved manner while maintaining or improving the rigidity and reinforcement of the vehicle structure. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0024] According to a further advantageous embodiment of the vehicle structure according to the first aspect, the mechanical strength of the first material is higher than the mechanical strength of the second material. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0025] According to another advantageous embodiment of the vehicle structure according to the first aspect, the first leg portion and the second leg portion of the first reinforcing member overlap each other at the first head section so as to form a reinforcing structure. The advantage of this embodiment is that the rigidity and reinforcement of the vehicle structure are further improved while maintaining or improving the deformation of the vehicle structure for absorbing impact. The advantage of this embodiment is that the deformation can be designed and predicted in an improved manner while maintaining or improving the rigidity and reinforcement of the vehicle structure. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0026] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the first head section is in a corrugated shape, the first leg portion and the second leg portion of the first reinforcing member and the first head section are provided with a corrugated portion of the first reinforcing member including a raised portion and a groove portion of the first reinforcing member, each of the raised portions of the first reinforcing member extends from the foot portion of the first leg portion of the first reinforcing member through the first head section to the foot portion of the second leg portion of the first reinforcing member. The advantage of this embodiment is that the rigidity and reinforcement of the vehicle structure are further improved while maintaining or improving the deformation of the vehicle structure for absorbing impact. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0027] According to still another advantageous embodiment of the vehicle structure according to the first aspect, each of the groove portions of the first reinforcing member extends from the foot portion of the first leg portion of the first reinforcing member through the first head section to the foot portion of the second leg portion of the first reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0028] According to an advantageous embodiment of the vehicle structure according to the first aspect, the foot portion of the first leg portion of the first reinforcing member is corrugated so as to form an opening between the second reinforcing member and the first leg portion of the first reinforcing member. The openings between the second reinforcing member and the first leg portions of the first reinforcing member are positioned continuously with each other in the longitudinal direction. The advantage of this embodiment is that the first and second reinforcing members and / or any liquid medium applied for coating on the surfaces of the first and second members, for example, the liquid medium used in the KTL (Kathodische Tauchlackierung) process, can be efficiently discharged. The advantage of this embodiment is that the process of producing the vehicle structure is facilitated and improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0029] According to a further advantageous embodiment of the vehicle structure according to the first aspect, the foot portion of the second leg portion of the first reinforcing member is corrugated so as to form an opening between the second reinforcing member and the second leg portion of the first reinforcing member. The openings between the second reinforcing member and the second leg portions of the first reinforcing member are positioned continuously with each other in the longitudinal direction. The advantage of this embodiment is that the first reinforcing member and the second reinforcing member, and / or any liquid medium applied for coating on the surfaces of the first member and the second member, for example, the liquid medium used in the KTL process, can be discharged even more efficiently. The advantage of this embodiment is that the process of producing the vehicle structure becomes even easier and is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0030] According to another advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first reinforcing member and the second reinforcing member include one or more attachment tongues for attachment to one or more of the first member and the second member. The advantage of this embodiment is that the process of producing the vehicle structure becomes even easier and is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0031] According to another advantageous embodiment of the vehicle structure according to the first aspect, the second reinforcing member has a first leg portion having an intersecting extending portion extending in a direction intersecting the longitudinal direction, the second reinforcing member has a second leg portion having an intersecting extending portion extending in a direction intersecting the longitudinal direction, each of the first leg portion and the second leg portion of the second reinforcing member has a foot portion having a longitudinally extending portion extending in the longitudinal direction, the foot portions of the first leg portion and the second leg portion of the second reinforcing member are spaced apart from each other, the first leg portion and the second leg portion of the second reinforcing member are joined at the second head section, the second head section faces one of the first member and the second member, while the foot portions of the first leg portion and the second leg portion of the second reinforcing member face the other of the first member and the second member. The advantages of this embodiment are that the performance of the vehicle structure during a collision is further improved. The advantages of this embodiment are that a further improved vehicle structure is provided. The advantages of this embodiment are that the penetration of a pole or an external object into the vehicle during a collision is efficiently prevented.

[0032] According to another advantageous embodiment of the vehicle structure according to the first aspect, each of the first leg portion and the second leg portion of the second reinforcing member is pleated and provided with pleats, and each of the pleats of the first leg portion and the second leg portion of the second reinforcing member includes a raised portion and a groove portion, and each of the raised portions and the groove portions of the second reinforcing member extends from the second head section to one of the foot portions of the first leg portion and the second leg portion of the second reinforcing member. The advantages of this embodiment are that the penetration of a pole or an external object into the vehicle during a collision is further efficiently prevented. The advantages of this embodiment are that the performance of the vehicle structure during a collision is further improved. The advantages of this embodiment are that a further improved vehicle structure is provided.

[0033] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the second head section faces one of the first member and the second member, while the first head section faces the other of the first member and the second member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0034] According to an advantageous embodiment of the vehicle structure according to the first aspect, the second head section faces the first member, while the feet of the first leg portion and the second leg portion of the second reinforcing member face the second member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0035] According to a further advantageous embodiment of the vehicle structure according to the first aspect, one or more of the feet and portions of the first leg portion of the first reinforcing member are attached to the first leg portion of the second reinforcing member, and one or more of the feet and portions of the second leg portion of the first reinforcing member are attached to the second leg portion of the second reinforcing member. The advantage of this embodiment is that the rigidity and reinforcement of the vehicle structure are further improved while maintaining or improving the deformation of the vehicle structure for absorbing impact. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0036] According to another advantageous embodiment of the vehicle structure according to the first aspect, the first leg portion of the second reinforcing member forms a first indentation, the second leg portion of the second reinforcing member forms a second indentation, the first indentation receives one or more of the feet and portions of the first leg portion of the first reinforcing member, and the second indentation receives one or more of the feet and portions of the second leg portion of the first reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0037] According to another advantageous embodiment of the vehicle structure according to the first aspect, the first leg portion of the second reinforcing member has one or more inclined portions in one or more directions intersecting the longitudinal direction so as to form the first indentation, The second leg portion of the second reinforcing member has one or more inclined portions in one or more directions intersecting the longitudinal direction so as to form the second indentation. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0038] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the first indentation is formed by the concave surface of the first leg portion of the second reinforcing member, The second indentation is formed by the concave surface of the second leg portion of the second reinforcing member, One or more of the feet and portions of the first leg portion of the first reinforcing member are attached to the concave surface of the first leg portion of the second reinforcing member, One or more of the feet and portions of the second leg portion of the first reinforcing member are attached to the concave surface of the second leg portion of the second reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided. The advantage of this embodiment is that the attachment of the first reinforcing member to the second reinforcing member is improved and strengthened, thereby providing an advantageous deformation of the vehicle structure for absorbing the impact during a collision while improving the rigidity and reinforcement of the vehicle structure to prevent penetration during a collision. The advantage of this embodiment is that the breakage of spot welding or welding spots that can be used for attaching the first reinforcing member to the second reinforcing member in the case of a head-on collision is prevented.

[0039] According to another advantageous embodiment of the vehicle structure according to the first aspect, the first reinforcing member defines an inner space between the first leg portion and the second leg portion of the first reinforcing member, and the second head section and the foot portion of the second reinforcing member are located outside the inner space defined by the first reinforcing member. The advantages of this embodiment are that while maintaining or improving the deformation of the vehicle structure for absorbing impacts, the rigidity and reinforcement of the vehicle structure are further improved. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0040] According to still another advantageous embodiment of the vehicle structure according to the first aspect, the first reinforcing member defines an inner space between the first leg portion and the second leg portion of the first reinforcing member, and the entire second reinforcing member is located outside the inner space defined by the first reinforcing member. The advantages of this embodiment are that while maintaining or improving the deformation of the vehicle structure for absorbing impacts, the rigidity and reinforcement of the vehicle structure are further improved. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0041] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the raised portions and the groove portions of each of the first leg portion and the second leg portion of the first reinforcing member form smooth waveforms extending longitudinally along the longitudinal extension of the first reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0042] According to an advantageous embodiment of the vehicle structure according to the first aspect, the raised portions and the groove portions of the first leg portion of the first reinforcing member form the first leg portion of the first reinforcing member, and the raised portions and the groove portions of the second leg portion of the first reinforcing member form the second leg portion of the first reinforcing member. The advantage of this embodiment is that the performance of the vehicle structure during a collision is further improved. The advantage of this embodiment is that a further improved vehicle structure is provided.

[0043] According to another advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first reinforcing member and the second reinforcing member are formed from one or more plates, formed from one or more plates by hot press forming, formed from one or more plates by cold forming / processing, hydroformed, or extruded. This is an efficient way to produce the first or second reinforcing member.

[0044] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first reinforcing member and the second reinforcing member are made of a material comprising or consisting of a metal or metal alloy. This is an efficient way to produce a strong first or second reinforcing member.

[0045] According to an advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first member and the second member are formed from a plate, formed from one or more plates by hot press forming, or formed from one or more plates by cold forming / processing. This is an efficient way to produce the first and second members.

[0046] According to a further advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first member and the second member are made of a material comprising or consisting of a metal or metal alloy. This is an efficient way to produce strong first and second members.

[0047] According to another advantageous embodiment of the vehicle structure according to the first aspect, one or more of the first member and the second member are · a hat-shaped outer profile, and · a U-shaped outer profile and comprise one of the group. This is an efficient way to produce the first and second members and provide a closed space.

[0048] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the vehicle structure is a vehicle side structure, and the part is a side part. The vehicle structure is suitable for being applied as the vehicle side structure of the vehicle, thereby improving the performance of the vehicle side structure during a side or lateral collision. Thus, an improved vehicle side structure is provided. However, in an alternative embodiment, the vehicle structure may be applied and mounted at other locations of the vehicle, for example, at the front of the vehicle where it may form part of the bumper, at the rear of the vehicle, or at other locations within the vehicle.

[0049] According to yet another advantageous embodiment of the vehicle structure according to the first aspect, the part is a side sill part, and the longitudinal extension of the side sill part is configured to extend in the longitudinal direction of the vehicle body of the vehicle and is configured to be provided at the side of the vehicle body. The advantage of this embodiment is that it provides an advantageous deformation of the vehicle structure having a side sill part for absorbing impact while maintaining or improving the rigidity and reinforcement of the vehicle structure. The innovative first reinforcing member is particularly advantageous for the side sill part of the vehicle structure where impact has to be absorbed during a certain collision. However, in an alternative embodiment, instead of the side sill part, the part or the side part may be a side beam part, a bumper part, or a beam part configured to be located at other locations within the vehicle.

[0050] According to yet an advantageous embodiment of the vehicle structure according to the first aspect, the side sill part is configured to be attached to one or more cross beams of the vehicle body. Thereby, the rigidity of the vehicle structure can be further improved.

[0051] The above features and embodiments of the vehicle structure can be combined in various possible ways to provide further advantageous embodiments.

[0052] Further advantageous embodiments of the vehicle structure according to the first aspect and further advantages according to embodiments of the present invention emerge from the dependent claims and the detailed description of the embodiments.

[0053] Next, for purposes of illustration, the present invention will be described in more detail with reference to the accompanying drawings in which like reference numerals are used for like parts throughout the embodiments.

Brief Description of the Drawings

[0054]

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Mode for Carrying Out the Invention

[0055] Referring to FIGS. 1 to 11, a first embodiment of a vehicle structure 100 according to a first aspect of the present invention and aspects of embodiments of the vehicle structure according to the first aspect of the present invention are schematically shown.

[0056] Referring to FIGS. 7 to 9, the vehicle structure 100 includes a portion 102 having a longitudinally extending portion 104 that extends in the longitudinal direction 106. The portion 102 includes a first member 108 having a longitudinally extending portion 110 that extends in the longitudinal direction 106. The portion 102 includes a second member 112 having a longitudinally extending portion 114 that extends in the longitudinal direction 106. The first member 108 is configured to face the inside 116 of the vehicle. The second member 112 is configured to face the outside 118 of the vehicle. The first and second members 108, 112 are attached to each other such that the first and second members 108, 112 form a closed space 120. Thus, when the vehicle structure 100 is installed, the first member 108 can face the inside 116 of the vehicle while the second member 112 can face the outside 118 of the same vehicle.

[0057] The "closed space" 120 in the present disclosure also includes a substantially or essentially closed space. For example, one or more small openings may exist at the ends of the walls forming the closed space 120 and / or the portion 102 of the vehicle structure 100, but the space 120 is still considered to be closed. For example, the first and second members 108, 112 can be attached to each other by welding such as laser welding, spot welding, or continuous welding, a mechanical locking structure such as a rivet, an adhesive, or any other suitable fastening means.

[0058] Referring to FIGS. 1-9, the portion 102 includes a first reinforcing member 122 located within the closed space 102. The first reinforcing member 122 has a longitudinal extending portion 124 (see FIG. 4) extending in the longitudinal direction 106. The portion 102 includes a second reinforcing member 126 located within the closed space 120. The second reinforcing member 126 has a longitudinal extending portion 128 (see FIG. 6) extending in the longitudinal direction 106. The first reinforcing member 122 is attached to the second reinforcing member 126. For example, the first reinforcing member 122 can be attached to the second reinforcing member 126 by welding such as laser welding, spot welding, or continuous welding, a mechanical locking structure such as a rivet, an adhesive, or any other suitable fastening means. One or more of the first and second reinforcing members 122, 126 can be attached to one or more of the first and second members 108, 112 by welding such as laser welding or spot welding, a mechanical locking structure such as a rivet, an adhesive, or any other suitable fastening means.

[0059] Referring to FIGS. 8 and 9, the first reinforcing member 122 has a first leg portion 130 having an intersecting extending portion 132 extending in a direction 134 intersecting the longitudinal direction 106. The first reinforcing member 122 has a second leg portion 136 having an intersecting extending portion 138 extending in a direction 135 intersecting the longitudinal direction 106.

[0060] Referring to FIGS. 1-9, each of the first and second leg portions 130, 136 of the first reinforcing member 122 has foot portions 140, 142 having longitudinal extending portions 144, 146 (see FIGS. 1 and 2) extending in the longitudinal direction 106. The foot portions 140, 142 of the first and second leg portions 130, 136 of the first reinforcing member 122 are spaced apart from each other. The first and second leg portions 130, 136 of the first reinforcing member 122 are joined at a first head section 148. The first head section 148 faces one of the first and second members 108, 112, while the foot portions 140, 142 of the first and second leg portions 130, 136 of the first reinforcing member 122 face the other of the first and second members 108, 112. It should be understood that the foot portions 140, 142 are located at the ends of the leg portions 130, 136.

[0061] Referring to FIGS. 1-9, each of the first and second legs 130, 136 of the first reinforcing member 122 is pleated and includes pleat portions 150, 152. The pleat portions 150, 152 of each of the first and second legs 130, 136 of the first reinforcing member 122 include a raised portion 150 and a groove portion 152. Each of the raised portion 150 and the groove portion 152 of the first reinforcing member 122 extends from the first head section 148 to one of the feet 140, 142 of the first and second legs 130, 136 of the first reinforcing member 122.

[0062] Referring to FIGS. 1-9, each of the first and second legs 130, 136 of the first reinforcing member 122 has an outer surface 154. Each of the first and second legs 130, 136 of the first reinforcing member 122 has an inner surface 156 that faces the inner surface 156 of the other of the first and second legs 130, 136 of the first reinforcing member 122.

[0063] Referring to FIGS. 1-9, on the outer surface 154, each of one or more of the raised portions 150 of the first leg 130 of the first reinforcing member 122 has a recess 158 at the first position 160. In some embodiments, the recess 158 may include a depression or a dent. In some embodiments, one or more of the first reinforcing member 122, the first leg 130, and the second leg 136 may include an additional group of one or more raised portions without recesses. In some embodiments, the recess 158 may be located intermediate between the foot 140 and the first head section 148.

[0064] Referring to FIGS. 1 to 9, in some embodiments, the recesses 158 of the first legs 130 of the first reinforcing member 122 at the first position 160 are aligned with each other in the longitudinal direction 106. Therefore, when viewed in the longitudinal direction 106, the recesses 158 of the first legs 130 of the first reinforcing member 122 at the first position 160 can be arranged along a substantially straight virtual line extending in the longitudinal direction 106. However, in other embodiments, the recesses 158 of the first legs 130 of the first reinforcing member 122 at the first position 160 are not aligned with each other in the longitudinal direction 106 and may be located at different distances from the first head section 148, for example.

[0065] Referring to FIGS. 8 and 9, in some embodiments, the first legs 130 of the first reinforcing member 122 may have one or more inclined portions 162 (see FIG. 9) in one or more directions 164 intersecting the longitudinal direction 106 so as to form the recesses 158 at the first position 160.

[0066] Referring to FIGS. 1 to 9, in some embodiments, on the outer surface 154, each of one or more of the ridges 150 of the first legs 130 of the first reinforcing member 122 may have one or more additional recesses at one or more additional positions. In some embodiments, on the outer surface 154, each of one or more of the ridges 150 of the second legs 136 of the first reinforcing member 122 may have a recess at the second position, which will be disclosed in more detail below in connection with the second embodiment disclosed in FIGS. 12 to 22.

[0067] Referring to FIGS. 1-9, in some embodiments, the first head section 148 may face the second member 112, while the feet 140, 142 of the first and second legs 130, 136 of the first reinforcing member 122 face the first member 108. However, in other embodiments, it may be the reverse. In some embodiments, one or more of the feet 140, 142 and portions of the first and second legs 130, 136 of the first reinforcing member 122 may be attached to the second reinforcing member 126. Thus, in some embodiments, the feet 140, 142 of the first and second legs 130, 136 of the first reinforcing member 122 may be attached to the second reinforcing member 126. In some embodiments, portions of the first and second legs 130, 136 of the first reinforcing member 122 may be attached to the second reinforcing member 126. In some embodiments, both the feet 140, 142 and portions of the first and second legs 130, 136 of the first reinforcing member 122 may be attached to the second reinforcing member 126.

[0068] Referring to FIGS. 1, 8, and 9, in some embodiments, the first head section 148 may include a reinforcement structure 166 having a longitudinally extending portion 168 (see FIGS. 1 and 4) that extends in the longitudinal direction 106 so as to reinforce the first head section 148. In some embodiments, the reinforcement structure 166 may include one or more patches 170 having a longitudinally extending portion 168 that extends in the longitudinal direction 106. Referring to FIGS. 8 and 9, in some embodiments, the first head section 148 has an outer surface 172, and the first head section 148 may be defined as having an inner surface 174 that faces the inner surfaces 156 of the first and second legs 130, 136 of the first reinforcing member 122. In some embodiments, one or more patches 170 may be attached to the inner surface 174 of the first head section 148. However, in other embodiments, the patch 170 may be attached to the outer surface 172 of the first head section 148. In some embodiments, one or more patches 170 may be attached to the first head section 148 by being stamped or press-formed together.

[0069] Referring to FIGS. 8 and 9, in some embodiments, one or more patches 170 may be made of a first material, while the first and second legs 130, 136 of the first reinforcement member 122 and the first head section 148 are made of a second material different from the first material. For example, the mechanical strength of the first material may be higher than that of the second material. For example, the first material may be thicker than the second material. For example, the mechanical strength of the first material may exceed 1500 MPa. For example, the mechanical strength of the first material may be about 1500 MPa, or about 2000 MPa. For example, the mechanical strength of the second material may be less than 1000 MPa. One or more of the first and second materials may be ductile materials. For example, one or more of the first and second materials may include Ductibor® 1000, or Ductibor® 500. However, other materials are possible.

[0070] Referring to FIGS. 1-9, in some embodiments, the first head section 148 may be pleated, and the first and second legs 130, 136 of the first reinforcement member 122 and the first head section 148 may include the pleated portions 150, 152 of the first reinforcement member 122 including the raised portions 150 and the groove portions 152 of the first reinforcement member 122. Each of the raised portions 150 of the first reinforcement member 122 extends from the foot portion 140 of the first leg 130 of the first reinforcement member 122 through the first head section 148 to the foot portion 142 of the second leg 136 of the first reinforcement member 122. In some embodiments, each of the groove portions 152 of the first reinforcement member 122 may extend from the foot portion 140 of the first leg 130 of the first reinforcement member 122 through the first head section 148 to the foot portion 142 of the second leg 136 of the first reinforcement member 122.

[0071] Referring to FIGS. 1-9, in some embodiments, one or more of the first and second reinforcement members 122, 126 may include one or more attachment tongues 176 for attachment to one or more of the first and second members 108, 112. In the embodiments shown in FIGS. 1-19, an attachment tongue 176 is attached to or formed integrally with the second reinforcement member 126. However, in other embodiments, one or more attachment tongues 176 may be provided on the first reinforcement member 122. The attachment tongue 176 may be formed integrally with one of the first and second reinforcement members 122, 126, or the attachment tongue 176 may be attached to one or more of the first and second reinforcement members 122, 126 by welding such as laser welding, spot welding, a mechanical locking structure such as a rivet, an adhesive, or any other suitable fastening means.

[0072] Referring to FIGS. 8 and 9, in some embodiments, the second reinforcement member 126 may have a first leg 178 having a transverse extension 180 extending in a direction 182 transverse to the longitudinal direction 106, and the second reinforcement member 126 may have a second leg 184 having a transverse extension 186 extending in a direction 188 transverse to the longitudinal direction 106. Each of the first and second legs 178, 184 of the second reinforcement member 126 has feet 190, 192 having longitudinal extensions 194, 196 (see FIG. 2) extending in the longitudinal direction 106. The feet 190, 192 of the first and second legs 178, 184 of the second reinforcement member 126 are spaced apart from each other. The first and second legs 178, 184 of the second reinforcement member 126 are joined at a second head section 198. The second head section 198 faces one of the first and second members 108, 112, while the feet 190, 192 of the first and second legs 178, 184 of the second reinforcement member 126 face the other of the first and second members 108, 112.

[0073] Referring to FIGS. 1-9, in some embodiments, each of the first and second legs 178, 184 of the second reinforcing member 126 may be pleated and may include pleats 200, 202 (see FIG. 2). The pleats 200, 202 of each of the first and second legs 178, 184 of the second reinforcing member 126 include a raised portion 200 and a groove portion 202. Each of the raised portion 200 and the groove portion 202 of the second reinforcing member 126 extends from the second head section 198 to one of the feet 190, 192 of the first and second legs 178, 184 of the second reinforcing member 126. However, in some embodiments, the first and second legs 178, 184 of the second reinforcing member 126 may not be pleated, i.e., may not have pleats.

[0074] Referring to FIGS. 1-9, in some embodiments, the second head section 198 may face one 108, 112 of the first and second members 108, 112, while the first head section 148 faces the other 108, 112 of the first and second members 108, 112. The second head section 198 may face the first member 108, while the feet 190, 192 of the first and second legs 178, 184 of the second reinforcement member 126 face the second member 112. In some embodiments, one or more of the feet 140 and portions of the first leg 130 of the first reinforcement member 122 may be attached to the first leg 178 of the second reinforcement member 126, while one or more of the feet 142 and portions of the second leg 136 of the first reinforcement member 122 may be attached to the second leg 184 of the second reinforcement member 126. In some embodiments, the foot 140 of the first leg 130 of the first reinforcement member 122 may be attached to the first leg 178 of the second reinforcement member 126. In some embodiments, the foot 142 of the second leg 136 of the first reinforcement member 122 may be attached to the second leg 184 of the second reinforcement member 126. In some embodiments, the said portion of the first leg 130 of the first reinforcement member 122 may be attached to the first leg 178 of the second reinforcement member 126. In some embodiments, the said portion of the second leg 136 of the first reinforcement member 122 may be attached to the second leg 184 of the second reinforcement member 126. In some embodiments, both the foot 140 and the said portion of the first leg 130 of the first reinforcement member 122 may be attached to the first leg 178 of the second reinforcement member 126. In some embodiments, both the foot 142 and the said portion of the second leg 136 of the first reinforcement member 122 may be attached to the second leg 184 of the second reinforcement member 126.

[0075] Referring to FIGS. 8 and 9, in some embodiments, the first reinforcing member 122 may be described as defining an inner space 204 between the first and second legs 130, 136 of the first reinforcing member 122. In some embodiments, the second head section 198 and the feet 190, 192 of the second reinforcing member 126 may be located outside the inner space 204 defined by the first reinforcing member 122. In some embodiments, the entire second reinforcing member 126 may be located outside the inner space 204 defined by the first reinforcing member 122.

[0076] Referring to FIGS. 1-9, in some embodiments, the ridges 150 and grooves 152 of each of the first and second legs 130, 136 of the first reinforcing member 122 may be described as forming a smooth waveform extending in the longitudinal direction 106 along the longitudinal extension 124 of the first reinforcing member 122. In some embodiments, the ridges 150 and grooves 152 of the first leg 130 of the first reinforcing member 122 may form the first leg 130 of the first reinforcing member 122, while the ridges 150 and grooves 152 of the second leg 136 of the first reinforcing member 122 may form the second leg 136 of the first reinforcing member 122. However, in alternative embodiments, one or more of the first and second legs 130, 136 of the first reinforcing member 122 may include one or more sections without ridges 150 and grooves 152, such as one or more flat longitudinal sections or regions.

[0077] Referring to FIGS. 10 and 11, in some embodiments, the foot portion 140 of the first leg portion 130 of the first reinforcing member 122 can be wavy so as to form or define an opening 206 between the second reinforcing member 126 and the first leg portion 130 of the first reinforcing member 122. The openings 206 between the second reinforcing member 126 and the first leg portion 130 of the first reinforcing member 122 are successively positioned in the longitudinal direction 106. In some embodiments, the foot portion 142 of the second leg portion 136 of the first reinforcing member 122 can be wavy so as to form an opening 208 between the second reinforcing member 126 and the second leg portion 136 of the first reinforcing member 122. The openings 208 between the second reinforcing member 126 and the second leg portion 136 of the first reinforcing member 122 are successively positioned in the longitudinal direction 106. The advantage of the openings 206, 208 is that any liquid medium applied for coating on the surfaces of the first and second reinforcing members 122, 126 and / or the first and second members 108, 112, for example, the liquid medium used in the KTL (Kathodische Tauchlackierung) process, can be discharged.

[0078] Referring to FIGS. 12 to 22, a second embodiment of the vehicle structure 300 according to the first aspect of the present invention and a further aspect of the embodiment of the vehicle structure according to the first aspect of the present invention are schematically shown. Since some features of the second embodiment of the vehicle structure 300 may correspond to the features of the first embodiment of the vehicle structure 100 in FIGS. 1 to 11, they will not be repeated here to avoid repetition. The vehicle structure 300 in FIGS. 12 to 22 is different from the vehicle structure 100 in FIGS. 1 to 11 in that, as shown in FIGS. 12 to 22, at least one of the raised portions 150 of the second leg portion 136 of the first reinforcing member 122 has a recess 302 at the second position 304 on the outer surface 154. In some embodiments, the recesses 302 of the second leg portion 136 of the first reinforcing member 122 at the second position 304 may be aligned with each other in the longitudinal direction 106. However, in other embodiments, the recesses 302 of the first leg portion 136 of the first reinforcing member 122 at the second position 304 may not be aligned with each other in the longitudinal direction 106. In some embodiments, on the outer surface 154, at least one of the raised portions 150 of the second leg portion 136 of the first reinforcing member 122 may have one or more additional recesses at one or more additional positions.

[0079] Referring to FIGS. 19 and 20, in some embodiments, the first reinforcing member 122 may define or form an inner space 204 between the first and second leg portions 130, 136 of the first reinforcing member 122. The second position 304 may face one of the first positions 160 with the inner space 204 therebetween. However, in other embodiments, the second position 304 may be located elsewhere, that is, at a location that does not face one of the first positions 160. In some embodiments, the second leg portion 136 of the first reinforcing member 122 may have one or more inclined portions 306 in one or more directions 308 transverse to the longitudinal direction 106 so as to form a recess 302 at the second position 304.

[0080] Furthermore, referring to FIGS. 19 and 20, the vehicle structure 300 of FIGS. 12 to 22 is different from the vehicle structure 100 of FIGS. 1 to 11 in that, as shown in FIGS. 12 to 22, the first and second legs 130, 136 of the first reinforcing member 122 overlap each other at the first head section 148 so as to form the reinforcing structure 166. Therefore, the reinforcing structure 166 of the vehicle structure 300 of FIGS. 12 to 22 does not include a patch. However, in other embodiments, the reinforcing structure 166 may include both overlapping legs and one or more patches 170. In other respects, the other features of the vehicle structure 300 of FIGS. 12 to 22 may correspond to the features of the vehicle structure 100 of FIGS. 1 to 11.

[0081] Referring to FIGS. 23 and 24, a third embodiment of the vehicle structure 500 according to the first aspect of the present invention and a further aspect of the embodiment of the vehicle structure according to the first aspect of the present invention are schematically shown. Some features of the third embodiment of the vehicle structure 500 may correspond to the features of the first embodiment of the vehicle structure 100 of FIGS. 1 - 11, and thus are not repeated here to avoid repetition. The vehicle structures 500 of FIGS. 23 and 24 differ from the vehicle structure 100 of FIGS. 1 - 11 in that the first leg portion 178 of the second reinforcing member 126 forms or has the first recess 502 or the first concave portion, while the second leg portion 184 of the second reinforcing member 126 forms the second recess 504 or the second concave portion. The first recess 502 receives one or more of the foot portion 140 and the portion 522 of the first leg portion 130 of the first reinforcing member 122. One or more of the foot portion 140 and the portion 522 of the first leg portion 130 of the first reinforcing member 122 may be described as extending into the first recess 502. The second recess 504 receives one or more of the foot portion 142 and the portion 524 of the second leg portion 136 of the first reinforcing member 122. One or more of the foot portion 142 and the portion 524 of the second leg portion 136 of the first reinforcing member 122 may be described as extending into the second recess 504. In some embodiments, the first recess 502 may receive the foot portion 140 of the first leg portion 130 of the first reinforcing member 122. In some embodiments, the first recess 502 may be defined as receiving at least the portion 522 of the first leg portion 130 of the first reinforcing member 122. In some embodiments, the first recess 502 may receive both the foot portion 140 and the portion 522 of the first leg portion 130 of the first reinforcing member 122. In some embodiments, the second recess 504 may receive the foot portion 142 of the second leg portion 136 of the first reinforcing member 122. In some embodiments, the second recess 504 may be defined as receiving at least the portion 524 of the second leg portion 136 of the first reinforcing member 122. In some embodiments, the second recess 504 may receive both the foot portion 142 and the portion 524 of the second leg portion 136 of the first reinforcing member 122.

[0082] Referring to FIGS. 23 and 24, in some embodiments, the first leg 178 of the second reinforcing member 126 can be defined as forming or including a first flange that forms the first recess 502. In some embodiments, the second leg 184 of the second reinforcing member 126 can be defined as forming or including a second flange that forms the second recess 504. In some embodiments, one or more of the first and second recesses 502, 504 can be defined as having a longitudinal extension that extends in the longitudinal direction 106.

[0083] Referring to FIGS. 23 and 24, in some embodiments, the first leg 178 of the second reinforcing member 126 can have one or more inclined portions 506 in one or more directions 508 that cross the longitudinal direction 106 so as to form the first recess 502, while the second leg 184 of the second reinforcing member 126 can have one or more inclined portions 510, 512 in one or more directions 514, 516 that cross the longitudinal direction 106 so as to form the second recess 504.

[0084] Referring to FIGS. 23 and 24, in some embodiments, the portion of the first leg 130 of the first reinforcing member 122 adjacent to (or adjacent to) the foot 140 of the first leg 130 of the first reinforcing member 122 can be curved (or bent) so as to fit snugly, for example, within the first recess 502. For example, the portion of the first leg 130 of the first reinforcing member 122 can be curved by one or more inclined portions of the first leg 130 so as to form, for example, a convex surface. In some embodiments, the portion of the second leg 136 of the first reinforcing member 122 adjacent to (or adjacent to) the foot 142 of the second leg 136 of the first reinforcing member 122 can be curved (or bent) so as to fit snugly, for example, within the second recess 504. For example, the portion of the second leg 136 of the first reinforcing member 122 can be curved by one or more inclined portions of the second leg 136 so as to form, for example, a convex surface.

[0085] Referring to FIGS. 23 and 24, in some embodiments, the first recess 502 can be defined as being formed by the concave surface 518 of the first leg 178 of the second reinforcing member 126, and the second recess 504 can be defined as being formed by the concave surface 520 of the second leg 184 of the second reinforcing member 126. One or more of the foot 140 and the portion 522 of the first leg 130 of the first reinforcing member 122 can be attached to the concave surface 518 of the first leg 178 of the second reinforcing member 126, for example, by welding such as laser welding, spot welding, or continuous welding, a mechanical locking structure such as a rivet, an adhesive, or any other suitable fastening means. One or more of the foot 142 and the portion 524 of the second leg 136 of the first reinforcing member 122 can be attached to the concave surface 520 of the second leg 184 of the second reinforcing member 126, for example, by welding such as laser welding, spot welding, or continuous welding, a mechanical locking structure such as a rivet, an adhesive, or other suitable fastening means. As shown in the embodiments of FIGS. 23 and 24, the foot 140 of the first leg 130 of the first reinforcing member 122 can be attached to the concave surface 518 of the first leg 178 of the second reinforcing member 126, while the foot 142 of the second leg 136 of the first reinforcing member 122 can be attached to the concave surface 520 of the second leg 184 of the second reinforcing member 126. However, in other embodiments, at least the portion 522 of the first leg 130 of the first reinforcing member 122 can be attached to the concave surface 518 of the first leg 178 of the second reinforcing member 126 by, for example, one or more of the fastening means described above. In other embodiments, at least the portion 524 of the second leg 136 of the first reinforcing member 122 can be attached to the concave surface 520 of the second leg 184 of the second reinforcing member 126 by, for example, one or more of the fastening means described above. In some embodiments, both the foot 140 and the portion 522 of the first leg 130 of the first reinforcing member 122 can be attached to the concave surface 518 of the first leg 178 of the second reinforcing member 126. In some embodiments, both the foot 142 and the portion 524 of the second leg 136 of the first reinforcing member 122 can be attached to the concave surface 520 of the second leg 184 of the second reinforcing member 126.

[0086] Referring to FIGS. 1 - 24, in some embodiments, one or more of the first and second reinforcing members 122, 126 may be formed from one or more plates, may be formed from one or more plates by hot press forming, may be formed from one or more plates by cold forming / processing, may be hydroformed, or may be extruded. In some embodiments, one or more of the first and second reinforcing members 122, 126 may be made of or include a material that includes or consists of a metal or metal alloy, such as aluminum, or steel, or a material that includes aluminum or steel. In some embodiments, one or more of the first and second reinforcing members 122, 126 may be made of or include a material that includes or consists of a polymer or fiber - reinforced polymer, such as a polymer composite like carbon fiber - reinforced polymer (CFRP). However, other materials are possible. One or more of the first and second members 108, 112 may be formed from a plate, may be formed from one or more plates by hot press forming, or may be formed from one or more plates by cold forming / processing. One or more of the first and second members 108, 112 may be made of or include a material that includes or consists of a metal or metal alloy, such as aluminum. However, other materials are possible. In some embodiments, one or more of the first and second members 108, 112 may have one of a group of hat - shaped and U - shaped outer profiles.

[0087] In some embodiments, one or more of the first and second reinforcing members 122, 126, and one or more of the first and second members 108, 112, or any other element or member included in the vehicle structures 100, 300, 500 may be made of the following types of materials.

[0088] There are several known ultra - high - strength steels (UHSS) for hot stamping and quenching. For example, blanks can be made of coated or uncoated boron steels such as Usibor® (22MnB5) commercially available from ArcelorMittal.

[0089] Usibor (registered trademark) 1500P is an example of 22MnB5 steel. The composition of Usibor (registered trademark) is summarized below by weight percentage (the balance being iron (Fe) and unavoidable impurities). Maximum carbon (C) (%): 0.25 Maximum silicon (Si) (%): 0.4 Maximum manganese (Mn) (%): 1.4 Maximum phosphorus (P) (%): 0.03 Maximum sulfur (S) (%): 0.01 Aluminum (Al) (%): 0.01 - 0.1 Maximum titanium (Ti) (%): 0.05 Maximum niobium (Nb) (%): 0.01 Maximum copper (Cu) (%): 0.20 Maximum boron (B) (%): 0.005 Maximum chromium (Cr) (%): 0.35

[0090] The yield strength of Usibor (registered trademark) 1500P is, for example, 1100 MPa, and the ultimate tensile strength can be 1500 MPa.

[0091] Usibor (registered trademark) 2000 is another boron steel with even higher strength. The yield strength of Usibor (registered trademark) 2000 can be 1400 MPa or more, and the ultimate tensile strength can exceed 1800 MPa. The composition of Usibor (registered trademark) 2000 is summarized below by weight percentage (the balance being iron (Fe) and impurities). Maximum carbon (C) (%): 0.36 Maximum silicon (Si) (%): 0.8 Maximum manganese (Mn) (%): 0.8 Maximum phosphorus (P) (%): 0.03 Maximum sulfur (S) (%): 0.01 Aluminum (Al) (%): 0.01 - 0.06 Maximum titanium (Ti) (%): 0.07 Maximum niobium (Nb) (%): 0.07 Maximum copper (Cu) (%): 0.20 Maximum boron (B) (%): 0.005 Maximum Chromium (Cr) (%): 0.50 Maximum Molybdenum (Mb) (%): 0.50

[0092] In addition to the aforementioned ultra-high strength steel, higher ductility steels can also be used for some of the structural skeletons that require energy absorption. These steels can be used in the hot stamping process, but a martensite microstructure cannot be obtained in the process. Examples of suitable higher ductility steels include Ductibor® 500, Ductibor® 1000, and CRL-340LA.

[0093] Another material used in hot stamping is Ductibor® 500. Ductibor® 500 is a steel material with much higher ductility, and these can be effective in absorbing energy during impact. The yield strength of Ductibor® 500 can be 400 MPa or more, and the ultimate tensile strength can be 550 MPa or more.

[0094] The composition of Ductibor® 500 is summarized below by weight percentage (the balance is iron (Fe) and impurities). Maximum Carbon (C) (%): 0.1 Maximum Silicon (Si) (%): 0.5 Maximum Manganese (Mn) (%): 1.7 Maximum Phosphorus (P) (%): 0.03 Maximum Sulfur (S) (%): 0.025 Aluminum (Al) (%): 0.015 - 0.2 Maximum Titanium (Ti) (%): 0.09 Maximum Niobium (Nb) (%): 0.10 Maximum Copper (Cu) (%): 0.20 Maximum Boron (B) (%): 0.001 Maximum Chromium (Cr) (%): 0.20

[0095] Ductibor® 1000 is another material used in hot stamping to increase elongation when compared to Usibor® 1500 and Usibor® 2000. The yield strength of Ductibor® 1000 can be 800 MPa or more, and the ultimate tensile strength can be 1000 MPa or more. The composition of Ductibor® 1000 is summarized below in weight percentages (the balance being iron (Fe) and impurities). Maximum carbon (C) (%): 0.10 Maximum silicon (Si) (%): 0.6 Maximum manganese (Mn) (%): 1.8 Maximum phosphorus (P) (%): 0.03 Maximum sulfur (S) (%): 0.01 Aluminum (Al) (%): 0.01 - 0.1 Maximum titanium (Ti) (%): 0.05 Maximum niobium (Nb) (%): 0.10 Maximum copper (Cu) (%): 0.20 Maximum boron (B) (%): 0.005 Maximum chromium (Cr) (%): 0.20

[0096] Each of the above vehicle structures 100, 300, and 500 can be a vehicle side structure, and each part 102 can be a side part. However, the vehicle structures 100, 300, and 500 can be applied and mounted in other locations of the vehicle, for example, at the front of the vehicle where they can form part of the bumper, at the rear of the vehicle, or in other locations within the vehicle. The vehicle structures 100, 300, and 500 can be used, for example, in an electric vehicle or a hybrid vehicle, but can also of course be used in a normal vehicle equipped only with a combustion engine. The vehicle structures 100, 300, and 500 can be configured to protect one or more electric batteries of an electric vehicle or a hybrid vehicle, for example, during a collision. Thus, the vehicle structures 100, 300, and 500 can be located on one or more sides of the electric battery. The vehicle structures 100, 300, and 500 are efficient in protecting the driver and / or one or more passengers of the vehicle during a collision. The vehicle structures 100, 300, and 500 are efficient as protection against pole collisions or severe collisions. The vehicle structures 100, 300, and 500 are efficient in preventing the penetration of a pole into the vehicle during a pole collision.

[0097] In some embodiments, the part 102 is a side sill part, and the longitudinal extension 104 of the side sill part 102 is configured to extend in the longitudinal direction 106 of the vehicle body of the vehicle and is configured to be provided at the side of the vehicle body. Referring to FIG. 8, in some embodiments, the side sill part 102 can be configured to be attached to or attachable to one or more cross beams 400 of the vehicle body, for example, two cross beams of the vehicle body. However, in alternative embodiments, instead of the side sill part, the part or side part can be a side beam part, a bumper part, or a beam part configured to be located in other locations within the vehicle.

[0098] The features of the different embodiments of the vehicle structure disclosed above can be combined in various possible ways to provide further advantageous embodiments.

[0099] The present invention is not limited to the above-described embodiments. Instead, the present invention relates to and encompasses all different embodiments included within the scope of the appended independent claims.

Claims

1. A vehicle structure (100, 300, 500) comprising a portion (102) having a longitudinally extending portion (104) extending in a longitudinal direction (106), wherein the portion (102) comprises a first member (108) having a longitudinally extending portion (110) extending in the longitudinal direction (106), and a second member (112) having a longitudinally extending portion (114) extending in the longitudinal direction (106), and the first member (108) is configured to face the inside (116) of the vehicle, the second member (112) is configured to face the outside (118) of the vehicle, the first member and the second member (108, 112) are attached to each other such that the first member and the second member (108, 113) form a closed space (120), the portion (102) is a first reinforcing member (122) located within the closed space (120), and comprises the first reinforcing member (122) having a longitudinally extending portion (124) extending in the longitudinal direction (106), the portion (102) is a second reinforcing member (126) located within the closed space (120), and comprises the second reinforcing member (126) having a longitudinally extending portion (128) extending in the longitudinal direction (106), the first reinforcing member (122) is attached to the second reinforcing member (126), the first reinforcing member (122) has a first leg portion (130) having an intersecting extending portion (132) extending in a direction (134) intersecting the longitudinal direction (106), the first reinforcing member (122) has a second leg portion (136) having an intersecting extending portion (138) extending in a direction (135) intersecting the longitudinal direction (106), each of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) has a foot portion (140, 142) having a longitudinally extending portion (144, 146) extending in the longitudinal direction (106), the foot portions (140, 142) of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) are spaced apart from each other, the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) are joined by a first head section (148), The first head section (148) faces one of the first leg portion and the second member (108, 112), while the feet (140, 142) of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) face the other of the first leg portion and the second member (108, 112). Each of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) is in a pleated shape and includes pleat portions (150, 152), and the pleat portions (150, 152) of each of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) include a raised portion (150) and a groove portion (152). Each of the raised portion and the groove portion (150, 152) of the first reinforcing member (122) extends from the first head section (148) to one of the feet (140, 142) of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122). Each of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) has an outer surface (154). Each of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) has an inner surface (156) that faces the inner surface (156) of the other of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122). On the outer surface (154), each of one or more of the raised portions (150) of the first leg portion (130) of the first reinforcing member (122) has a recess (158) at a first position (160). The first leg portion (130) of the first reinforcing member (122) has one or more inclined portions (162) in one or more directions (164) intersecting the longitudinal direction (106) so as to form the recess (158) at the first position (160). Vehicle structure (100, 300, 500).

2. The recesses (158) of the first leg portion (130) of the first reinforcing member (122) at the first position (160) are aligned with each other in the longitudinal direction (106). The vehicle structure (100, 300, 500) according to Claim 1.

3. In the outer surface (154), each of one or more of the raised portions (150) of the second leg portion (136) of the first reinforcing member (122) has a recess (302) at a second position (304), the vehicle structure (300) according to claim 1 or 2.

4. The second leg portion (136) of the first reinforcing member (122) has one or more inclined portions (306) in one or more directions (308) intersecting the longitudinal direction (106) so as to form the recess (302) at the second position (304), the vehicle structure (300) according to claim 3.

5. The first reinforcing member (122) defines an inner space (204) between the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122), The second position (304) faces one of the first positions (160) with the inner space (204) interposed therebetween, The vehicle structure (300) according to claim 3 or 4.

6. The first head section (148) faces the second member (112), while the foot portions (140, 142) of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) face the first member (108), the vehicle structure (100, 300, 500) according to any one of claims 1 to 5.

7. One or more of the foot portions (140, 142) and portions (522, 524) of the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) are attached to the second reinforcing member (126), the vehicle structure (100, 300, 500) according to any one of claims 1 to 6.

8. The first head section (148) includes a reinforcing structure (166) having a longitudinal extension portion (168) extending in the longitudinal direction (106) so as to reinforce the first head section (148), the vehicle structure (100, 300, 500) according to any one of claims 1 to 7.

9. The reinforcing structure (166) includes one or more patches (170) having a longitudinal extension portion (168) extending in the longitudinal direction (106), the vehicle structure (100, 500) according to claim 8.

10. The patch (170) is made of a first material, and the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) and the first head section (148) are made of a second material different from the first material, the vehicle structure (100, 500) according to claim 9.

11. The first leg portion and the second leg portion (130, 136) of the first reinforcing member (122) overlap each other with the first head section (148) so as to form the reinforcing structure (166), the vehicle structure (300) according to any one of claims 8 to 10.

12. The foot portion (140) of the first leg portion (130) of the first reinforcing member (122) is wavy so as to form an opening (206) between the second reinforcing member (126) and the first leg portion (130) of the first reinforcing member (122), The openings (206) between the second reinforcing member (126) and the first leg portion (130) of the first reinforcing member (122) are positioned continuously with each other in the longitudinal direction (106), The vehicle structure (100, 300, 500) according to any one of claims 1 to 11.

13. The second reinforcing member (126) has a first leg portion (178) having an intersecting extending portion (180) extending in a direction (182) intersecting the longitudinal direction (106), The second reinforcing member (126) has a second leg portion (184) having an intersecting extending portion (186) extending in a direction (188) intersecting the longitudinal direction (106), Each of the first leg portion and the second leg portion (178, 184) of the second reinforcing member (126) has a foot portion (190, 192) having a longitudinally extending portion (194, 196) extending in the longitudinal direction (106), The foot portions (190, 192) of the first leg portion and the second leg portion (178, 184) of the second reinforcing member (126) are spaced apart from each other, The first leg portion and the second leg portion (178, 184) of the second reinforcing member (126) are joined by a second head section (198), The second head section (198) faces one of the first member and the second member (108, 112), while the feet (190, 192) of the first leg and the second leg (178, 184) of the second reinforcing member (126) face the other of the first member and the second member (108, 112). The vehicle structure (100, 300, 500) according to any one of claims 1 to 12.

14. One or more of the foot (140) and the portion (522) of the first leg (130) of the first reinforcing member (122) are attached to the first leg (178) of the second reinforcing member (126). One or more of the foot (142) and the portion (524) of the second leg (136) of the first reinforcing member (122) are attached to the second leg (184) of the second reinforcing member (126). The vehicle structure (100, 300, 500) according to claim 13.

15. The first leg (178) of the second reinforcing member (126) forms a first recess (502). The second leg (184) of the second reinforcing member (126) forms a second recess (504). The first recess (502) receives one or more of the foot (140) and the portion (522) of the first leg (130) of the first reinforcing member (122). The second recess (504) receives one or more of the foot (142) and the portion (524) of the second leg (136) of the first reinforcing member (122). The vehicle structure (500) according to claim 13 or 14.

16. The first leg (178) of the second reinforcing member (126) has one or more inclined portions (506) in one or more directions (508) intersecting the longitudinal direction (106) so as to form the first recess (502). The second leg (184) of the second reinforcing member (126) has one or more inclined portions (510, 512) in one or more directions (514, 516) intersecting the longitudinal direction (106) so as to form the second recess (504). The vehicle structure (500) according to claim 15.

17. The first recess (502) is formed by the concave surface (518) of the first leg (178) of the second reinforcing member (126). The second recess (504) is formed by the concave surface (520) of the second leg portion (184) of the second reinforcing member (126). One or more of the foot portion (140) and the portion (522) of the first leg portion (130) of the first reinforcing member (122) are attached to the concave surface (518) of the first leg portion (178) of the second reinforcing member (126). One or more of the foot portion (142) and the portion (524) of the second leg portion (136) of the first reinforcing member (122) are attached to the concave surface (520) of the second leg portion (184) of the second reinforcing member (126). The vehicle structure (500) according to claim 15 or 16. [

18. ] The first reinforcing member (122) defines an inner space (204) between the first leg portion and the second leg portion (130, 136) of the first reinforcing member (122). The second head section (198) and the foot portions (190, 192) of the second reinforcing member (126) are located outside the inner space (204) defined by the first reinforcing member (122). The vehicle structure (100, 300, 500) according to any one of claims 13 to 17.

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