vehicle

Abstract

A vehicle comprising a top frame longitudinal beam extending in the front-rear direction of the vehicle, a C-pillar to which the top frame longitudinal beam is connected to the upper section of the C-pillar and whose lower section is suitable for connection to a door sill assembly, and a strut beam connected to the top frame longitudinal beam and suitable for connection to a rear longitudinal beam. The force-bearing capability of the vehicle is improved, thereby ensuring the structural integrity and personnel safety of the vehicle.

Description

Technical Field

[0001] Cross-reference to Related Applications This disclosure claims priority to Chinese Patent Application No. 202310644311.0, entitled "VEHICLE", filed on May 31, 2023 by BYD Company Limited, which is incorporated herein by reference in its entirety.

[0002] This disclosure relates to the technical field of vehicle body structures, and more particularly, to vehicles.

Background Art

[0003] In the prior art, when a vehicle is exposed to top pressure from the top, the strength of the side wall is low, the force transmission is poor, and the vehicle is likely to deform under the influence of the force. When the side wall is exposed to top pressure, the passenger compartment of the vehicle is likely to deform, and such deformation may easily cause harm to the passengers.

Summary of the Invention

[0004] This disclosure aims to solve at least one of the technical problems in the prior art to some extent.

[0005] To this end, this disclosure proposes a vehicle.

[0006] A vehicle according to an embodiment of this disclosure includes a top frame longitudinal beam extending along the front-rear direction of the vehicle, a C-pillar adapted such that the top frame longitudinal beam is connected to an upper section of the C-pillar and a lower section of the C-pillar is connected to a door sill assembly, and a strut beam to which the top frame longitudinal beam is connected, wherein the strut beam is adapted to be connected to a rear longitudinal beam.

[0007] Therefore, the C-pillar and strut beam can distribute the forces borne by the longitudinal beam of the top frame, and at the same time, a closed annular force transmission structure is formed between the longitudinal beam of the top frame, the C-pillar, the door sill assembly, the rear longitudinal beam, and the strut beam, which improves the load-bearing capacity of the vehicle and ensures the structural integrity of the vehicle and the safety of the occupants.

[0008] Further aspects and advantages of this disclosure are described in part in the following description, and in part will become apparent from the following description or will be understood through the practice of this disclosure. [Brief explanation of the drawing]

[0009] [Figure 1] This is a schematic diagram of a disassembled and assembled vehicle provided in one embodiment of the present disclosure. [Figure 2] This is a cross-sectional view of the location of the top frame reinforcing beam of a vehicle provided in one embodiment of the present disclosure. [Figure 3] This is a first partial schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 4] This is a second partial schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 5] This is a third partial schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 6] This is a fourth partial schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 7] This is a fifth partial schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 8] This is a schematic diagram of a vehicle provided in one embodiment of the present disclosure. [Figure 9] This is a schematic side view of a vehicle provided in one embodiment of the present disclosure. [Modes for carrying out the invention]

[0010] Embodiments of this disclosure are described in detail below. Examples of embodiments are shown in the accompanying drawings, and throughout the drawings, the same or similar reference numerals mean the same or similar elements, or elements having the same or similar function. The embodiments described below with reference to the accompanying drawings are illustrative and intended to illustrate this disclosure, but should not be construed as limiting this disclosure.

[0011] Referring to Figures 1 to 9, one embodiment of the present disclosure provides a vehicle comprising a top frame longitudinal beam 25 extending along the longitudinal direction of the vehicle, a C-pillar to which the top frame longitudinal beam 25 is connected to an upper section and which is adapted to connect to a door sill assembly 30 at a lower section, and a strut beam 26 to which the top frame longitudinal beam 25 is connected, the strut beam 26 being adapted to connect to a rear longitudinal beam 27.

[0012] A vehicle has a length direction, a width direction, and a height direction. The length direction of the vehicle may be the X direction in the figure, i.e., the front-to-back direction of the vehicle; the width direction of the vehicle may be the Y direction in the figure; and the height direction of the vehicle may be the Z direction in the figure.

[0013] The top frame longitudinal beam 25 is positioned at the top of the vehicle frame structure and is connected to a C-pillar which is adapted to connect to a door sill assembly 30. When the top of the vehicle is subjected to pressure, the pressure from the top can be transmitted to the bottom of the vehicle through the C-pillar and then to the door sill assembly 30, which ensures a force transmission path when the top of the vehicle is subjected to stress and improves the impact resistance of the top of the vehicle.

[0014] In addition, the strut beam 26 is connected between the top frame longitudinal beam 25 and the rear longitudinal beam 27. The C-pillar and strut beam 26 can distribute the forces borne by the top frame longitudinal beam 25, and at the same time, a closed annular force transmission structure is formed between the top frame longitudinal beam 25, the C-pillar, the rear longitudinal beam 27, and the strut beam 26, which prevents the vehicle frame structure from being crushed or damaged, improves the load-bearing capacity of the vehicle, and ensures the structural integrity of the vehicle and the safety of the occupants.

[0015] A vehicle provided in an embodiment of the present disclosure includes a top frame longitudinal beam 25 extending along the longitudinal direction of the vehicle, a C-pillar to which the top frame longitudinal beam 25 is connected and adapted to connect to a door sill assembly 30, and a strut beam 26 to which the top frame longitudinal beam 25 is connected, the strut beam 26 being adapted to connect to a rear longitudinal beam 27. The C-pillar and strut beam 26 can distribute the forces borne by the top frame longitudinal beam 25, and at the same time, a closed annular force transmission structure is formed between the top frame longitudinal beam 25, the C-pillar, the door sill assembly 30, the rear longitudinal beam 27, and the strut beam 26, which prevents the vehicle frame structure from being crushed or damaged, improves the load-bearing capacity of the vehicle, and ensures the structural integrity of the vehicle and the safety of the occupants.

[0016] The vehicle further includes upper lateral beams 230, and the top frame longitudinal beam 25 is connected to the upper lateral beams 230.

[0017] The upper lateral beam 230 is adapted to connect to the front longitudinal lateral beam 28.

[0018] The strut beam 26 may be connected to the rear end portion of the top frame longitudinal beam 25, and the upper side beam 230 may be connected to the front end portion of the top frame longitudinal beam 25. The upper side beam 230 is connected between the top frame longitudinal beam 25 and the front longitudinal beam 28, which can further transmit the pressure on the top of the vehicle to the front longitudinal beam 28, increasing the force transmission path when the top of the vehicle is subjected to stress.

[0019] The vehicle further includes an A pillar. In the front-rear direction of the vehicle, the A pillar is spaced apart from the C pillar and is disposed on the front side of the C pillar. The top frame longitudinal beam 25 is connected to the upper section of the A pillar, and the upper side beam 230 is connected to the A pillar.

[0020] In the case where the A pillar connects the top frame longitudinal beam 25 and the upper side beam 230, when the top of the vehicle is exposed to pressure, the pressure from the top can be transmitted to the upper side beam 230 at the front of the vehicle through the A pillar, which ensures the force transmission path when the top of the vehicle is subjected to stress and improves the impact resistance of the vehicle top.

[0021] The lower section of the A pillar is connected to the door sill assembly 30.

[0022] The upper parts of the A pillar and the C pillar are connected to the top frame longitudinal beam 25, the lower parts of the A pillar and the C pillar are connected to the door sill assembly, and the A pillar and the C pillar are spaced apart in the front-rear direction of the vehicle.

[0023] When the top of the vehicle is exposed to pressure, the pressure from the top can be transmitted to the lower part of the vehicle through the A pillar and the C pillar, and then transmitted to the door sill assembly, which increases the force transmission path when the top of the vehicle is subjected to stress and improves the impact resistance of the vehicle top.

[0024] The top frame longitudinal beam 25 includes a top frame outer panel 241, a top frame inner panel 253, and a top frame reinforcing beam 251. The top frame outer panel 241 and the top frame inner panel 253 are connected opposite each other to form a top cavity, and the top frame reinforcing beam 251 is positioned within the top cavity.

[0025] As shown in Figure 2, the upper end 241a of the top frame outer panel 241 is connected to the upper end 253a of the top frame inner panel 253 by adhesive, and the lower end 241b of the top frame outer panel 241 is further connected to the lower end 253b of the top frame inner panel 253 by adhesive, while the top frame reinforcing beam 251 and the top frame inner panel 253 are connected by a combination of gluing and bolting, which increases the connection reliability and structural integrity between the top frame reinforcing beam 251 and the top frame inner panel 253, and can improve the deformation resistance and top pressure resistance of the top frame structure of B-pillarless vehicles such as sports cars.

[0026] In addition, the top frame outer panel 241 and the top frame inner panel 253 may be made of a metal material, an alloy material, or a polymer composite material, and the top frame outer panel 241 and the top frame inner panel 253 are connected by welding or adhesive.

[0027] The cross-section of the top frame reinforcing beam 251 is an annular closed structure.

[0028] The top frame reinforcing beam 251 is formed by a hot steam expansion pipe forming process, which offers the advantages of high strength and the ability to form complex shapes. Thus, the top frame reinforcing beam 251 can form a pipe beam structure with a variable cross-section, and the orientation of the pipe beam structure changes along with the shape of the top frame. This not only meets collision safety requirements during frontal and top-down collisions, but also accommodates diverse requirements for the curvature of the top frame shape, thereby improving the streamlined appearance of the two-door sports car in which the pipe beam structure is used.

[0029] In addition, the high strength of the top frame reinforcing beam 251 allows for a reduction in the cross-section of the A-pillar, achieving a weight reduction effect while maintaining collision safety.

[0030] Referring to Figure 2, the top frame reinforcing beam 251 is connected to the top frame inner panel 253, and the two opposing surfaces of the top frame reinforcing beam 251 and the top frame inner panel 253 are attached to each other.

[0031] The three side walls of the C-shaped structure formed by the top frame reinforcing beam 251 are connected via adhesive to the three surfaces 253c, 253d, and 253e of the top frame inner panel 253, respectively. Meanwhile, to enhance the strength and reliability of the connection between the top frame reinforcing beam 251 and the top frame inner panel 253, the top frame inner panel 253d is connected to the C-shaped structure of the top frame reinforcing beam 251 via bolts 253s, ensuring that the closed section formed by the top frame inner panel 253 and the top frame reinforcing beam 251 can meet the sectional force requirements.

[0032] In addition, a retaining space is provided between the top frame outer panel 241 and the top frame reinforcing beam 251 to ensure the assemblyability of the top frame reinforcing beam 251. This satisfies the vehicle's styling curvature requirements while complying with collision safety requirements during frontal collisions and top compression situations.

[0033] Referring to Figure 3, the vehicle further includes an A-pillar top frame reinforcing beam connecting member 243 connected to the A-pillar. Both the upper lateral beam 230 and the top frame reinforcing beam 251 are connected to the A-pillar top frame reinforcing beam connecting member 243.

[0034] The A-pillar top frame reinforcing beam connecting member 243 is made of cast aluminum material and can be formed using a high-vacuum die-casting method, providing complex curved surfaces and integrating multiple mounting points to meet connection requirements with other components.

[0035] The A-pillar top frame reinforcing beam connecting member 243 is connected to the A-pillar, the top frame reinforcing beam, and the upper lateral beam, respectively, to facilitate smoother force transmission between the top frame reinforcing beam and the upper lateral beam. Furthermore, since the A-pillar top frame reinforcing beam connecting member 243 is an integrally formed component, it has high structural strength, is not easily crushed during force transmission, and can transmit forces better in the longitudinal direction. In the case of forces from the vertical direction, it can smoothly transmit forces from the top frame reinforcing beam to the A-pillar and upper lateral beam, further distributing and transmitting forces to the door sill beam and the front longitudinal beam, thereby increasing the force transmission path and preventing stress concentration in various components.

[0036] The A-pillar top frame reinforcing beam connecting member 243 is further connected to the instrument panel tube beam inside the passenger compartment and to the door hinges, which allows for structural reuse, a reduction in the number of parts, and a reduction in weight. The connection to the door hinges can improve the stability of the door connection and the operational stability of the door due to its own strength.

[0037] The A-pillar further includes an inner A-pillar panel, an outer A-pillar panel, and a partition plate. The inner and outer A-pillar panels are connected to form a cavity, and the partition plate divides the cavity into a first cavity and a second cavity. An A-pillar reinforcement is placed in the second cavity and connected to the inner A-pillar panel. The A-pillar reinforcement is connected to the A-pillar top frame reinforcement beam connector and the door sill beam. The A-pillar reinforcement extends along the height direction of the vehicle and is an integrally formed structure. This A-pillar structure can effectively improve the strength of the A-pillar. The strength of the A-pillar structure is greatly increased through the cooperation of the A-pillar reinforcement and the cavity structure. Furthermore, the connection between the A-pillar top frame reinforcement beam connector and the A-pillar reinforcement can further improve the force transmission capacity between the A-pillar top frame reinforcement beam connector and the A-pillar.

[0038] The A-pillar reinforcement is connected to the instrument panel tube beam and the front long lateral beam, enabling better force transmission to the instrument panel tube beam and the front long lateral beam.

[0039] Referring to Figure 3, the A-pillar includes an A-pillar reinforcement 245. The A-pillar reinforcement 245 is positioned with an L-shaped or U-shaped surface overlapping connector to facilitate the connection between the A-pillar top frame reinforcement beam connector 243 and the A-pillar reinforcement 245. Meanwhile, the front end of the A-pillar top frame reinforcement beam connector 243 is connected via bolts to the front wheel housing 231 and upper side beam 230 of the front frame, and the rear end of the A-pillar top frame reinforcement beam connector 243 is connected via bolts to the top frame reinforcement beam 251 and top frame inner panel 253. This can improve the overall strength of the vehicle by enabling force transmission and energy absorption in the Z direction during frontal top compression, as well as force transmission and energy absorption in the Y direction during side collisions.

[0040] Referring to Figure 4, the vehicle further includes a C-pillar top frame reinforcing beam connecting member 260, which is connected to the C-pillar and connects the top frame reinforcing beam 251 and the strut beam 26.

[0041] The C-pillar top frame reinforcing beam connector 260 is formed using a high-vacuum die-casting method. The front end of the C-pillar top frame reinforcing beam connector 260 is connected to the A-pillar top frame reinforcing beam 251 and the top frame inner panel 253 of the top frame, and adhesive bonding combined with bolting may be employed to ensure the reliability of the connection at the front end of the C-pillar top frame reinforcing beam connector 260. On the other hand, the rear end of the C-pillar top frame reinforcing beam connector 260 is further connected to the front strut of the rear wheel housing 261 of the rear frame using adhesive bonding combined with bolting, forming a stable connection between the front wheel housing 231, the upper lateral beam 230, the top frame inner panel 253, and the front strut of the rear wheel housing 261. This allows the vehicle to better transmit loads in various collision situations such as rear-end and side-end collisions and to further absorb collision energy through vehicle deformation, thereby maximizing occupant safety protection.

[0042] Referring to Figure 5, the C-pillar includes a C-pillar front reinforcement 254 and a C-pillar rear reinforcement 255. In the longitudinal direction of the vehicle, at least a portion of the C-pillar front reinforcement 254 is spaced apart from the C-pillar rear reinforcement 255.

[0043] The C-pillar front reinforcement 254 and the C-pillar rear reinforcement 255 can reinforce the C-pillar in the longitudinal direction of the vehicle. In cases where at least a portion of the C-pillar front reinforcement 254 is separated from at least a portion of the C-pillar rear reinforcement 255, the C-pillar front reinforcement 254 and the C-pillar rear reinforcement 255 can form two force transmission paths in the longitudinal direction of the vehicle, thereby improving the vehicle's impact resistance.

[0044] In one embodiment, referring to Figure 5, the upper end of the C-pillar front reinforcement 254 is connected to the top frame longitudinal beam 25, the lower end of the C-pillar front reinforcement 254 is connected to the door sill assembly, the upper end of the C-pillar rear reinforcement 255 is connected to the top frame longitudinal beam 25, and the lower end of the C-pillar rear reinforcement 255 is connected to the C-pillar front reinforcement 254. This ensures stability of force transmission in the two force transmission paths of the C-pillar front reinforcement 254 and the C-pillar rear reinforcement 255.

[0045] The C-pillar rear reinforcement 255 includes a first section reinforcement and a second section reinforcement connected to each other.

[0046] The first section reinforcement extends along the height direction of the vehicle, its upper end is connected to the top frame longitudinal beam 25, its lower end is connected to the upper end of the second section reinforcement, and its lower end is connected to the C-pillar front reinforcement 254, and the second section reinforcement extends along the longitudinal direction of the vehicle.

[0047] Referring to Figure 5, the C-pillar front brace member 254 can be made of ultra-high-strength hot-rolled steel. The upper part of the C-pillar front brace member 254 is connected to the top frame reinforcing beam 251 using adhesive, and the connection point is reinforced by bolts. Both sides of the C-pillar front brace member 254 are connected to the top frame inner panel 253 via flanges and adhesive. Referring to Figure 7, the central and lower parts of the C-pillar front brace member 254 are connected to the front door sill diagonal brace rail 246 and the rear door sill brace rail 250 via bolts, and the lower part of the C-pillar front brace member 254 is connected to the door sill reinforcing beam 244 and the door sill support member III 249 via Y-direction bolts.

[0048] Referring to Figure 5, the C-pillar rear reinforcement 255 is C-shaped overall and is formed by a first section reinforcement and a second section reinforcement, and is made of carbon fiber composite material. The upper part of the C-pillar rear reinforcement 255 is connected to the top frame reinforcement beam 251 and the C-pillar top frame reinforcement beam connecting member 260 using adhesive, and the lower part of the C-pillar rear reinforcement 255 is connected to the C-pillar front reinforcement 254, the top frame inner panel 253, and the C-pillar inner support 257 via adhesive bonding. As a result, the annular structure formed by the top frame reinforcement beam 251, the C-pillar front reinforcement 254, the C-pillar rear reinforcement 255, and the door sill reinforcement beam 244 has two force transmission paths from top to bottom.

[0049] In the two top-to-bottom force transmission paths described above, one path transmits force downward from the top frame reinforcing beam 251 through the C-pillar front reinforcing member 254 to the door sill reinforcing beam 244, while the other path transmits force downward from the top frame reinforcing beam 251 through the C-pillar rear reinforcing member 255 to the door sill reinforcing beam 244. The above annular structure, in combination with the C-shaped C-pillar rear reinforcing member 255, has excellent force transmission paths in the Z and X directions, improving the stability of the vehicle.

[0050] The vehicle further includes inner and outer sidewall panels that are connected to form a door sill beam cavity. A door sill reinforcing beam assembly is positioned within the door sill beam cavity to form a door sill assembly 30.

[0051] The inner and outer sidewall panels can protect the door sill reinforcement beam assembly, and if the door sill reinforcement beam assembly is located within the door sill beam cavity, the door sill beam cavity can mitigate the deformation of the door sill reinforcement beam assembly and improve the vehicle's resistance to deformation.

[0052] Referring to Figure 6, the vehicle further includes a C-pillar energy absorption box 256. The C-pillar front reinforcement is positioned between the inner and outer sidewall panels, and the C-pillar energy absorption box 256 is positioned between the C-pillar front reinforcement 254 and the outer sidewall panel.

[0053] The C-pillar energy absorption box 256 can be made of a high-strength, high-rigidity carbon fiber composite material and is bonded to the C-pillar front reinforcement 254 via a flange, and further bonded to the side wall outer panel. The C-pillar energy absorption box 256 can better absorb the energy of top compression and side pillar collision situations in a vehicle body without a B-pillar, and can ensure occupant safety while being connected to the C-pillar front reinforcement 254.

[0054] Referring to Figure 7, the door sill reinforcement beam assembly includes the door sill reinforcement beam 244, and the lower end of the C-pillar front reinforcement 254 is connected to the door sill reinforcement beam 244.

[0055] The upper end of the C-pillar front reinforcement 254 is connected to the top frame longitudinal beam 25, and the lower end is connected to the door sill reinforcement beam 244. Therefore, the force acting on the top frame longitudinal beam 25 is transmitted to the door sill reinforcement beam 244 through the C-pillar front reinforcement 254, thereby improving the vehicle's resistance to deformation.

[0056] The door sill reinforcement beam assembly further includes a front door sill bracing rail 246 that is diagonally connected between the door sill reinforcement beam 244 and the front C-pillar reinforcement member 254.

[0057] In the longitudinal direction of the vehicle, the front door sill bracing rail 246 is positioned in front of the C-pillar front reinforcement 254.

[0058] The vehicle further includes door sill support members I248, II263, and III249. Door sill support members I248 and II263 are connected between the front door sill bracing rail 246 and the door sill reinforcing beam 244, and door sill support member III249 is connected to the lower end of the C-pillar front reinforcing member 254 to improve the structural strength and force transmission stability of the vehicle.

[0059] In addition, the door sill reinforcing beam 244 is positioned with multiple mounting holes to facilitate the installation of the battery pack. In a side pillar collision, the C-pillar energy absorption box 256 can play a role in dispersing force transmission, thereby minimizing the amount of intrusion into the battery pack and providing better protection for high-voltage components such as the battery pack.

[0060] Referring to Figure 7, the vehicle further includes an inner C-pillar support 257, the ends of which are connected to a second section reinforcement and a door sill reinforcement beam 244, respectively.

[0061] The upper end of the C-pillar inner support 257 can be connected to the second section reinforcement, and the lower end can be connected to the tail end of the door sill reinforcement beam 244. The C-pillar inner support 257 is spaced apart from the C-pillar front reinforcement 254 in the longitudinal direction of the vehicle. By supporting the second section reinforcement through the C-pillar inner support 257, forces can be transmitted between the second section reinforcement and the door sill reinforcement beam 244 through the C-pillar inner support 257, thereby increasing the force transmission path of the vehicle.

[0062] Referring to Figure 7, the door sill assembly further includes a rear door sill bracing rail 250 that is diagonally connected between the front C-pillar reinforcement 254 and the inner C-pillar support 257.

[0063] In side-pillar and side-impact collision situations, the impact force in the Y direction is transmitted from outside to inside through a Y-direction force transmission path consisting of the door-sill reinforcing beam 244, door-sill support member I 248, door-sill support member II 263, front door-sill bracing rail 246, door-sill support member III 249, and door-sill support member IV 252. In the X direction, the force transmission path from rear to front includes a main X-direction force transmission path at the bottom of the door-sill, consisting of the C-pillar inner support 257, door-sill support member IV 252, and door-sill reinforcing beam 244. Meanwhile, the C-pillar inner support 257, rear door-sill bracing rail 250, C-pillar front reinforcement 254, and front door-sill bracing rail 246 can further form an X-direction force transmission path, which constitutes a force transmission path for rear-impact collisions at the top of the door-sill. The cooperation of the force transmission paths for rear collisions in the lower and upper parts of the door sill improves the vehicle's force transmission efficiency.

[0064] Referring to Figures 3 and 8, the A-pillar includes an A-pillar reinforcement 245, and the front section of the top frame reinforcement beam 251, the A-pillar top frame reinforcement beam connecting member 243, the A-pillar reinforcement 245, and the front section of the door sill reinforcement beam 244 form the A-pillar ring.

[0065] The A-pillar top frame reinforcement beam connecting member 243 is connected to the A-pillar reinforcement member 245 via bolts, so that the A-pillar reinforcement member 245 can be connected via bolts to the A-pillar top frame reinforcement beam connecting member 243 at the front end to the front wheel housing 231 and upper side beam 230 of the front frame, and also connected via bolts to the top frame reinforcement beam 251 and top frame inner panel 253 at the rear end. This allows for force transmission and energy absorption in front-end collisions, small offset collisions, and top compression situations.

[0066] The vehicle further includes a rear wheel housing 29 connected to a rear long lateral beam 27, and a strut beam 26 connected to the rear wheel housing 29.

[0067] In the vehicle's height direction, the strut beam 26 is spaced apart from the rear longitudinal beam 27.

[0068] When the strut beam 26 is spaced apart from the rear longitudinal beam 27, the strut beam 26 and the rear longitudinal beam 27 can form two force transmission paths in the longitudinal direction of the vehicle, and when the rear wheel housing 29 connects the strut beam 26 and the rear longitudinal beam 27, the rear wheel housing 29 can improve the stability of force transmission between the strut beam 26 and the rear longitudinal beam 27.

[0069] The vehicle further includes a first rear wheel housing stabilizer bar, which is positioned behind the strut beam, with one end connected to the rear wheel housing and the other end connected to the rear longitudinal beam. In the height direction of the vehicle, at least a portion of the first rear wheel housing stabilizer bar is spaced apart from the rear longitudinal beam. This structure distributes and transmits the force of the stabilizer bar to the rear longitudinal beam through the wheel housing, enabling the formation of multiple force transmission paths at the rear.

[0070] The vehicle further includes a second rear wheel housing stabilizer bar, the second rear wheel housing stabilizer bar having its upper end connected to a strut beam and its lower end connected to a rear longitudinal beam, positioned between the wheel housing and the rear C-pillar reinforcement. Multiple second rear wheel housing stabilizer bars and strut beams form a triangular stabilizing structure, which stabilizes the rear wheel housing and provides multiple paths for transmitting the force of the strut beam to the rear wheel housing.

[0071] Referring to Figures 1 and 8, the A-pillar is connected to the door sill reinforcement beam 244, and in the longitudinal direction of the vehicle, the A-pillar is positioned in front of the front door sill brace rail 246, and the central section of the top frame reinforcement beam 251, the A-pillar, the C-pillar front reinforcement 254, the door sill reinforcement beam 244, and the front door sill brace rail 246 form the lateral door ring 31.

[0072] The door sill assembly further includes an inner door sill sealing plate 247. The lateral door ring, formed by the central section of the top frame reinforcing beam 251, the A-pillar, the C-pillar front reinforcing member 254, and the door sill reinforcing beam 244, can improve the structural strength of the vehicle at the door frame location.

[0073] Referring to Figure 8, the rear section of the top frame reinforcing beam 251, the front C-pillar reinforcing member 254, the rear C-pillar reinforcing member 255, and the rear section of the door sill reinforcing beam 244 form the C-pillar ring 32.

[0074] The C-pillar ring 32 includes a first C-pillar ring 321 and a second C-pillar ring 322. The first C-pillar ring 321 is composed of a C-pillar front reinforcement 254 and a C-pillar rear reinforcement 255, and the second C-pillar ring 322 is formed by the C-pillar rear reinforcement 255 and a door sill reinforcement beam 244 at the rear end, which can achieve force transmission and energy absorption in rear collision, top compression, and side collision situations.

[0075] In addition, a large side wall ring 34 is formed outside the three smaller rings, namely the A-pillar ring 33, the side door ring 31, and the C-pillar ring 32. The large annular structure of the side wall ring is mainly composed of the A-pillar reinforcement 245, the inner door sill sealing plate 247, the C-pillar rear reinforcement 255, and the top frame reinforcement beam 251. Each part of this large annular structure is connected to the top frame inner panel 253 through welding points, ensuring that the vehicle can effectively distribute force transmission in collision situations such as frontal collisions, rear collisions, minor offset collisions, top compressions, side pillar collisions, and side collisions, thereby avoiding large deformations of the occupant compartment due to excessive local stress and thus achieving occupant protection.

[0076] Unless expressly specified and limited otherwise in this disclosure, the presence of a first feature "on" or "under" a second feature may mean that the first and second features are in direct contact or indirect contact through an intermediate medium. Furthermore, the presence of a first feature "above," "over," and "on" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply that the height of the first feature is higher than the height of the second feature. The presence of a first feature "below," "under," and "beneath" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply that the height of the first feature is lower than the height of the second feature.

[0077] In this specification, any reference to terms such as “one embodiment,” “several embodiments,” “example,” “specific example,” or “several examples” means that the specific features, structures, materials, or properties described in relation to that embodiment or example are included in at least one embodiment or example of this disclosure. In this specification, the general expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be combined in any suitable manner in any one or more embodiments or examples. In addition, a person skilled in the art can combine the various embodiments or examples described herein with the features of those embodiments or examples, provided that they do not conflict with each other.

[0078] Although embodiments of the Disclosure are illustrated and described above, it can be understood that these embodiments are illustrative and should not be construed as limiting the Disclosure. Those skilled in the art can modify, alter, substitute, and transform the embodiments described above within the scope of the Disclosure.

Claims

1. It is a vehicle, The top frame longitudinal beam (25) extends along the front-rear direction of the vehicle, The C-pillar is configured such that the longitudinal beam (25) of the top frame is connected to the upper section of the C-pillar, and the lower section of the C-pillar is connected to the door sill assembly (30), The strut beam (26) to which the longitudinal beam (25) of the top frame is connected, Equipped with, A vehicle in which the strut beam (26) is adapted to be connected to a rear longitudinal beam (27).

2. The frame further comprises an upper lateral beam (230), and the longitudinal beam (25) of the top frame is connected to the upper lateral beam (230). The vehicle according to claim 1, wherein the upper lateral beam (230) is adapted to be connected to the front longitudinal beam (28).

3. The vehicle according to claim 2, further comprising an A-pillar, wherein in the front-rear direction of the vehicle, the A-pillar is spaced apart from the C-pillar and positioned in front of the C-pillar, the longitudinal beam of the top frame (25) is connected to the upper section of the A-pillar, and the upper lateral beam (230) is connected to the A-pillar.

4. The vehicle according to claim 3, further comprising an A-pillar top frame reinforcing beam connecting member (243), wherein the A-pillar top frame reinforcing beam connecting member (243) is connected to the A-pillar, and both the upper lateral beam (230) and the top frame reinforcing beam (251) are connected to the A-pillar top frame reinforcing beam connecting member (243).

5. The vehicle according to claim 3 or 4, wherein the lower section of the A-pillar is connected to the door sill assembly (30).

6. The vehicle according to claim 5, wherein the C-pillar comprises a C-pillar front reinforcing member (254) and a C-pillar rear reinforcing member (255), and in the longitudinal direction of the vehicle, at least a portion of the C-pillar front reinforcing member (254) is spaced apart from the C-pillar rear reinforcing member (255).

7. The vehicle according to claim 6, wherein the upper and lower ends of the front C-pillar reinforcing member (254) are connected to the longitudinal beam (25) of the top frame and the door sill assembly (30), respectively, the upper end of the rear C-pillar reinforcing member (255) is connected to the longitudinal beam (25) of the top frame, and the lower end of the rear C-pillar reinforcing member (255) is connected to the front C-pillar reinforcing member (254).

8. The C-pillar rear reinforcement member (255) comprises a first section reinforcement member and a second section reinforcement member connected to each other. The vehicle according to claim 6 or 7, wherein the first section reinforcement extends along the height direction of the vehicle, the upper end of the first section reinforcement is connected to the longitudinal beam (25) of the top frame, the lower end of the first section reinforcement is connected to the upper end of the second section reinforcement, the lower end of the second section reinforcement is connected to the front C-pillar reinforcement (254), and the second section reinforcement extends along the front-rear direction of the vehicle.

9. The vehicle according to claim 8, further comprising an inner sidewall panel and an outer sidewall panel, wherein the inner sidewall panel and the outer sidewall panel are connected to form a door sill beam cavity, and a door sill reinforcing beam assembly is positioned within the door sill beam cavity to form the door sill assembly (30).

10. The vehicle according to claim 9, further comprising a C-pillar energy absorption box (256), wherein the C-pillar front reinforcing member is positioned between the inner side wall panel and the outer side wall panel, and the C-pillar energy absorption box (256) is positioned between the C-pillar front reinforcing member (254) and the outer side wall panel and connected to the C-pillar front reinforcing member (254).

11. The vehicle according to claim 9 or 10, wherein the door sill reinforcing beam assembly comprises a door sill reinforcing beam (244), and the lower end of the C-pillar front reinforcing member (254) is connected to the door sill reinforcing beam (244).

12. The door sill reinforcing beam assembly further comprises a front door sill diagonal brace rail (246), the front door sill brace rail (246) being diagonally connected between the door sill reinforcing beam (244) and the front C-pillar reinforcing member (254), The vehicle according to claim 11, wherein in the longitudinal direction of the vehicle, the front door sill bracing rail (246) is positioned in front of the C-pillar front reinforcing member (254).

13. The vehicle according to claim 11 or 12, further comprising an inner C-pillar support (257), wherein both ends of the inner C-pillar support (257) are connected to the second section reinforcement and the door sill reinforcement beam (244), respectively.

14. The vehicle according to claim 13, wherein the door sill assembly (30) further comprises a rear door sill bracing rail (250), and the rear door sill bracing rail (250) is connected between the front C-pillar reinforcing member (254) and the inner C-pillar support (257).

15. The system further comprises a rear wheel housing (29), the rear wheel housing (29) being connected to the rear longitudinal beam (27), and the strut beam (26) being connected to the rear wheel housing. The vehicle according to claim 14, wherein in the height direction of the vehicle, the strut beam (26) is spaced apart from the rear longitudinal beam (27).

16. The A-pillar is connected to the door sill reinforcement beam (244), The vehicle according to any one of claims 12 to 15, wherein in the longitudinal direction of the vehicle, the A-pillar is positioned in front of the front door sill bracing rail (246), and the central section of the top frame reinforcing beam (251), the A-pillar, the C-pillar front reinforcing member (254), the door sill reinforcing beam (244), and the front door sill bracing rail (246) form a lateral door ring (31).

17. The vehicle according to claim 11, wherein the rear section of the top frame reinforcing beam (251), the front C-pillar reinforcing member (254), the rear C-pillar reinforcing member (255), and the rear section of the door sill reinforcing beam (244) form a C-pillar ring (32).

18. The vehicle according to any one of claims 1 to 17, wherein the longitudinal beam (25) of the top frame comprises an outer panel (241) of the top frame, an inner panel (253) of the top frame, and a reinforcing beam (251) of the top frame, wherein the outer panel (241) and the inner panel (253) of the top frame are connected opposite to each other to form a top cavity, and the reinforcing beam (251) of the top frame is positioned within the top cavity.

19. The vehicle according to claim 18, further comprising a C-pillar top frame reinforcing beam connecting member (260), wherein the C-pillar top frame reinforcing beam connecting member (260) is connected to the C-pillar and connects the top frame reinforcing beam (251) and the strut beam (26).

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