Vehicle body structure and vehicle

Abstract

A vehicle body structure and a vehicle are provided. The vehicle body structure includes an upper rocker panel and a lower rocker panel, the lower rocker panel being connected to the upper rocker panel, and in the height direction of the vehicle, at least a portion of the upper rocker panel is higher than the lower rocker panel, and the height of the upper rocker panel gradually increases in the direction from the front end to the rear end of the vehicle.

Description

Technical Field

[0001] Cross - reference to Related Applications This application claims priority to Chinese Patent Application No. 202310457410.8, filed on April 18, 2023, by BYD Company Limited and titled "VEHICLE BODY STRUCTURE AND VEHICLE", which is incorporated herein by reference in its entirety.

[0002] This application relates to the field of vehicle technology, and more particularly, to vehicles.

Background Art

[0003] In the prior art, vehicles cannot provide sufficient protection to occupants during side collisions.

Summary of the Invention

[0004] This application is intended to at least partially solve one of the technical problems in the related art.

[0005] In consideration of this, this application provides a vehicle body structure.

[0006] The vehicle body structure according to an embodiment of this application includes an upper rocker panel and a lower rocker panel. The lower rocker panel is connected to the upper rocker panel. In the height direction of the vehicle, at least a part of the upper rocker panel is higher than the lower rocker panel, and in the direction from the front end to the rear end of the vehicle, the height of the upper rocker panel gradually increases.

[0007] According to the vehicle body structure in the embodiment of this application, a two - layer rocker panel structure having an upper rocker panel and a lower rocker panel may be formed to provide double protection.

[0008] This application further provides a vehicle. The vehicle includes the aforementioned vehicle body structure.

[0009] Further aspects and advantages of this application are described in part in the following description, and in part become apparent from the following description or through practice of this application. [Brief explanation of the drawing]

[0010] [Figure 1] This is a schematic diagram of a vehicle body structure according to one embodiment of the present application. [Figure 2] This is a cross-sectional view along plane AA in Figure 1. [Figure 3] This is a partial schematic diagram of a vehicle body structure according to one embodiment of the present application. [Figure 4] This is another schematic diagram of a vehicle body structure according to one embodiment of the present application. [Figure 5] Figure 4 is a cross-sectional view along the plane CC. [Figure 6] Figure 4 is a cross-sectional view along the plane DD. [Figure 7] This is yet another schematic diagram of a vehicle body structure according to one embodiment of the present application. [Figure 8] Figure 7 is a cross-sectional view along the plane BB. [Modes for carrying out the invention]

[0011] Embodiments of this application are described in detail below, examples of which are shown in the accompanying drawings, and throughout the drawings, the same or similar reference numerals represent 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 application and should not be construed as limiting this application.

[0012] Referring to Figures 1 to 8, one embodiment of the present application provides a vehicle body structure for use in a vehicle. The vehicle body structure provided in the embodiment of the present application may be a vehicle side structure, for example, a carbon cabin side structure, that is, the vehicle body structure may be made of carbon fiber material.

[0013] The vehicle body structure includes an upper rocker panel 10 and a lower rocker panel 20, the lower rocker panel 20 being connected to the upper rocker panel 10, and in the height direction of the vehicle, at least a portion of the upper rocker panel 10 is higher than the lower rocker panel 20, and the height of the upper rocker panel 10 gradually increases in the direction from the front end to the rear end of the vehicle.

[0014] A vehicle using a body structure has a length direction, a width direction, and a height direction. The length direction of the vehicle may be the X direction in the drawing, the width direction of the vehicle may be the Y direction in the drawing, and the height direction of the vehicle may be the Z direction in the drawing.

[0015] As shown in Figure 1, the body structure provided in the embodiment of this application includes an upper rocker panel 10 and a lower rocker panel 20. The lower rocker panel 20 is connected to the upper rocker panel 10 to form a double-layer rocker panel structure to provide double-layer protection to the passenger compartment. The lower rocker panel 20 may include a rocker panel beam 244, which may be made of aluminum. The rocker panel beam 244 is positioned overall at the bottom of the upper rocker panel 10 such that the bottom of the rocker panel beam 244 is located near the height level of the battery pack mounting point to facilitate the mounting and securing of associated structures such as a battery pack. The top of the rocker panel beam 244 is located near the bottom of the vehicle door 30.

[0016] As shown in Figure 2, the interior of the rocker panel beam 244 of the lower rocker panel 20 may have a multi-cavity cross-sectional structure so that the rocker panel beam 244 itself can function as an underlayer protective structure for the rocker panel. When a collision occurs, the rocker panel beam 244 itself can absorb and cushion the energy sufficiently, thereby forming a protective effect on the occupants below and on the batteries and other structures below the floor, thereby improving the safety of the vehicle in which the body structure is used.

[0017] As shown in Figures 1 and 2, in the height direction of the vehicle body structure, at least a portion of the upper rocker panel 10 is higher than the lower rocker panel 20, such that the upper rocker panel 10 is positioned above the lower rocker panel 20 on which the rocker panel beam 244 is located. In this way, a two-layer rocker panel structure having an upper rocker panel 10 and a lower rocker panel 20 can be formed, and the upper rocker panel 10 and the lower rocker panel 20 together protect the lateral portion of the vehicle body structure to better prevent occupants inside the vehicle from being compressed by the vehicle door or impact object during a collision, thereby improving the safety of the vehicle in which the vehicle body structure is used.

[0018] In addition, in the embodiments of this application, the height of the upper rocker panel 10 gradually increases in the direction from the front end to the rear end of the vehicle body structure, that is, the upper rocker panel 10 employs a lower-front and higher-rear design. Thus, the lower front portion of the upper rocker panel 10 can facilitate the passage of occupants' legs when entering and exiting the vehicle, and the higher rear portion of the upper rocker panel 10 can better protect occupants in the passenger compartment, thereby improving the comfort and safety of the vehicle in which the vehicle body structure is used.

[0019] In the embodiments of the present application, it should be noted that only one side (left side) of the vehicle body structure is used as an example. Considering the self-symmetry of the vehicle body structure, the other side (right side) should be the same as the left side, that is, the right side should also include the same structure as the left side. Details will not be described again in this specification.

[0020] In the vehicle width direction, the size of the upper rocker panel 10 is less than or equal to half of the sum of the sizes of the lower rocker panel 20 and the upper rocker panel 10.

[0021] As shown in FIGS. 2 and 6, in the embodiments of the present application, in the width direction of the vehicle body structure (Y direction in FIG. 2), the size of the upper rocker panel 10 is less than or equal to half of the sum of the sizes of the lower rocker panel 20 and the upper rocker panel 10, that is, the maximum size of the upper rocker panel 10 in the width direction of the vehicle body structure is half of the sum of the sizes of the lower rocker panel 20 and the upper rocker panel 10. Therefore, the upper rocker panel 10 having a specific width and the lower rocker panel 20 can be used to form a relatively reliable two-layer protective rocker panel structure, and the self-width of the upper rocker panel 10 can be controlled so as to avoid the excessive width of the upper rocker panel 10 affecting the setting of other structures inside the vehicle body structure, and the development of miniaturization of the vehicle using the vehicle body structure is also promoted.

[0022] As shown in FIG. 2, in the vehicle width direction, at least a part of the upper rocker panel 10 is arranged on the side close to the passenger compartment of the lower rocker panel 20, that is, the upper rocker panel 10 approaches the passenger compartment more than the lower rocker panel 20 so that the upper rocker panel 10 having a gradually increasing height can be used to provide reliable protection for the passengers in the passenger compartment.

[0023] In the vehicle height direction, the top surface of the upper rocker panel 10 is in an arc shape.

[0024] As shown in Figure 1, in the embodiments of this application, in the height direction of the vehicle, the top surface of the upper rocker panel 10 may be arc-shaped so that the height of the upper rocker panel 10 can be gradually increased from the front to the rear of the vehicle body structure. In this way, when the upper rocker panel 10 is used to achieve overall heightening of the rocker panel, the arc design of the top surface of the upper rocker panel 10 can also improve the safety of the vehicle in which the vehicle body structure is used by facilitating occupant passage and providing better protection to occupants.

[0025] The body structure includes an A-pillar 253 and a C-pillar 254, with one end of the upper rocker panel 10 connected to the A-pillar 253 and the other end of the upper rocker panel 10 connected to the C-pillar 254.

[0026] As shown in Figures 3 and 7, in embodiments of the present application, the body structure may include an A-pillar 253 and a C-pillar 254 that are positioned opposite each other, both of which are positioned outside the side wall inner panel 243, and the A-pillar 253 and C-pillar 254 may be positioned opposite each other around the door opening to form an overall reinforcement for the outer periphery of the door opening.

[0027] As shown in Figures 7 and 8, one end of the upper rocker panel 10 may be connected to the A-pillar 253 and the other end of the upper rocker panel 10 may be connected to the C-pillar 254, so that the A-pillar 253 and C-pillar 254 can be connected on both sides via the upper rocker panel 10. Thus, the outer periphery of the door opening is structurally reinforced as a whole to reduce the external impact force at the door opening during a side collision, thereby better protecting the occupants inside. In addition, the A-pillars 253 and C-pillars 254 on both sides may be connected via the upper rocker panel 10 so that the overall rigidity and strength of the body structure can be improved.

[0028] In one embodiment, the connection lengths of the inner rocker panel sealing plate 247 to the A-pillars 253 and C-pillars 254 on both sides of the upper rocker panel 10 may also be adjusted. For example, in the longitudinal direction of the vehicle body structure (X direction in the drawing), the connection length of the inner rocker panel sealing plate 247 to the A-pillar 253 may range from 25 mm to 40 mm, and / or the connection length of the inner rocker panel sealing plate 247 to the C-pillar 254 may range from 25 mm to 40 mm, so that the reliability of the connection can be ensured by ensuring a sufficient connection length of the inner rocker panel sealing plate 247 to the A-pillars 253 and C-pillars 254.

[0029] The vehicle body structure further includes a side impact box 255, which is positioned at the connection point between the upper rocker panel 10 and the C-pillar 254, and is located on one side of the C-pillar 254 that is further away from the vehicle's occupant compartment.

[0030] As shown in Figure 3, in the embodiments of this application, the side impact box 255 may be further positioned at the connection point between the upper rocker panel 10 and the C-pillar 254. The side impact box 255 is positioned at the connection point between the upper rocker panel 10 and the C-pillar 254 so that the connection point between the upper rocker panel 10 and the C-pillar 254 can be reinforced by the side impact box 255, thereby improving the reliability of the connection point.

[0031] In addition, the side impact box 255 is positioned at the connection point between the upper rocker panel 10 and the C-pillar 254, and is located on one side of the C-pillar 254 away from the vehicle's occupant compartment so that external impacts can also be dispersed and transmitted in various directions by the side impact box 255 during a collision, thereby improving the impact resistance of the vehicle in which the body structure is used and enhancing the overall rigidity and safety of the body structure.

[0032] The upper rocker panel 10 includes an inner side wall panel 243 and an inner rocker panel sealing plate 247, the inner rocker panel sealing plate 247 and the inner side wall panel 243 being installed to form a cavity.

[0033] As shown in Figure 1, in embodiments of the present application, the upper rocker panel 10 may include an inner side wall panel 243 and an inner rocker panel sealing plate 247, the inner rocker panel sealing plate 247 being connected to the inner side wall panel 243, and both the inner rocker panel sealing plate 247 and the inner side wall panel 243 being positioned above the lower rocker panel 20 so as to form a double-layer rocker panel structure together with the lower rocker panel 20, thereby providing double-layer protection to the occupant compartment.

[0034] As shown in Figure 2, in embodiments of the present application, the cavity may be formed between the inner rocker panel sealing plate 247 and the side wall inner panel 243 to together form the upper protective structure of the rocker panel. In the height direction (Z direction in the drawing) of the body structure, the inner rocker panel sealing plate 247 is positioned above the rocker panel beam 244 such that the aforementioned cavity is also positioned above the lower rocker panel 20 on which the rocker panel beam 244 is located. In this way, a two-layer rocker panel structure having an upper rocker panel 10 and a lower rocker panel 20 can be formed, and the two-layer rocker panel structure formed by the upper rocker panel 10 and the lower rocker panel 20 can together protect the lateral portion of the body structure to better prevent occupants inside the vehicle from being compressed by the vehicle door or impact object in the event of a collision, thereby improving the safety of the vehicle on which the body structure is used.

[0035] The upper rocker panel 10 further includes an inner rocker panel support beam 261, which is located within a cavity, and the height of the inner rocker panel support beam 261 gradually increases in the direction from the front end to the rear end of the vehicle.

[0036] As shown in Figures 2 and 4, in embodiments of the present application, the inner rocker panel support beam 261 may be further positioned within the cavity surrounded by the inner rocker panel sealing plate 247 and the side wall inner panel 243, and the inner rocker panel support beam 261 is configured to reinforce the inner rocker panel sealing plate 247. The front end of the inner rocker panel support beam 261 is connected to the rocker panel beam 244, and the rear end of the inner rocker panel support beam 261 is connected to the C pillar 254, so that the inner rocker panel support beam 261 is connected between the rocker panel beam 244 and the C pillar 254. Thus, the impact resistance of the cavity surrounded by the inner rocker panel sealing plate 247 and the side wall inner panel 243 can be enhanced by the inner rocker panel support beam 261, and the overall strength and rigidity of the upper rocker panel 10 can also be improved.

[0037] Furthermore, the rear end of the inner rocker panel support beam 261 is higher than the front end of the inner rocker panel support beam 261, that is, the height of the inner rocker panel support beam 261 can be gradually increased in accordance with the height of the inner rocker panel sealing plate 247, so that the inner rocker panel support beam 261 can better adapt to changes in the height of the inner rocker panel sealing plate 247 in the direction from the front end to the rear end of the vehicle body structure.

[0038] In another embodiment, a first inner rocker panel support beam lower connector 262 and a second inner rocker panel support beam lower connector 263 may be located on the inner rocker panel support beam 261. The first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 are connected separately to the rocker panel beam 244 so as to enhance the structural stability of the inner rocker panel support beam 261, thereby increasing the impact resistance of the cavity surrounded by the inner rocker panel sealing plate 247 and the side wall inner panel 243.

[0039] As shown in Figures 4 and 5, in embodiments of the present application, the vehicle body structure may further include a first inner rocker panel support beam lower connector 262, which is connected between the inner rocker panel support beam 261 and the rocker panel beam 244 such that the connection between the rocker panel beam 244 and the inner rocker panel support beam 261 can be reinforced by the first inner rocker panel support beam lower connector 262, thereby ensuring the connection reliability of the inner rocker panel support beam 261.

[0040] As shown in Figures 4 and 6, in embodiments of the present application, the vehicle body structure may further include a second inner rocker panel support beam lower connector 263, which is connected between the inner rocker panel support beam 261 and the rocker panel beam 244 such that the connection between the rocker panel beam 244 and the inner rocker panel support beam 261 can be reinforced by the second inner rocker panel support beam lower connector 263, thereby ensuring the connection reliability of the inner rocker panel support beam 261.

[0041] Furthermore, in the longitudinal direction of the vehicle, the second inner rocker panel support beam lower connector 263 may be positioned between the first inner rocker panel support beam lower connector 262 and the C-pillar 254 so that the second inner rocker panel support beam lower connector 263 and the first inner rocker panel support beam lower connector 262 can together support the connection between the rocker panel beam 244 and the inner rocker panel support beam 261 from the central and end portions, respectively. In addition, the second inner rocker panel support beam lower connector 263 may be positioned higher than the first inner rocker panel support beam lower connector 262 so that the connection position between the second inner rocker panel support beam lower connector 263 and the inner rocker panel support beam 261 is higher than the connection position between the first inner rocker panel support beam lower connector 262 and the inner rocker panel support beam 261. Therefore, the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 can better adapt to an increase in the height of the inner rocker panel support beam 261, and the installation and removal of the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 are also facilitated.

[0042] In the width direction of the vehicle, at least a portion of the lower connector 262 of the first inner rocker panel support beam is located between the inner rocker panel support beam 261 and the rocker panel beam 244.

[0043] In the width direction of the vehicle, at least a portion of the second inner rocker panel support beam lower connector 263 is located between the inner rocker panel support beam 261 and the rocker panel beam 244.

[0044] As shown in Figures 5 and 6, in embodiments of the present application, at least a portion of the first inner rocker panel support beam lower connector 262 may be located between the inner rocker panel support beam 261 and the rocker panel beam 244, or at least a portion of the second inner rocker panel support beam lower connector 263 may be located between the inner rocker panel support beam 261 and the rocker panel beam 244, or at least a portion of the first inner rocker panel support beam lower connector 262 and at least a portion of the second inner rocker panel support beam lower connector 263 may both be located between the inner rocker panel support beam 261 and the rocker panel beam 244, thereby allowing the connection between the inner rocker panel support beam 261 and the rocker panel beam 244 to be correspondingly reinforced by the first inner rocker panel support beam lower connector 262 and / or the second inner rocker panel support beam lower connector 263.

[0045] In some embodiments, the inner rocker panel support beam 261 includes at least one cavity extending in the longitudinal direction of the vehicle. In some embodiments, the first inner rocker panel support beam lower connector 262 includes at least one cavity extending in the longitudinal direction of the vehicle, and the second inner rocker panel support beam lower connector 263 includes at least one cavity extending in the longitudinal direction of the vehicle.

[0046] As shown in Figures 5 and 6, in embodiments of the present application, the inner rocker panel support beam 261 may include at least one cavity extending in the longitudinal direction of the vehicle, for example, the inner rocker panel support beam 261 may include two vertically arranged cavities or more cavities extending in the longitudinal direction of the vehicle so that the strength of the inner rocker panel support beam 261 can be enhanced. The first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 may each include at least one cavity extending in the longitudinal direction of the vehicle, that is, the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 may each include a plurality of cavities extending in the longitudinal direction of the vehicle to suit the connection with the inner rocker panel support beam 261 and the rocker panel beam 244. At the same time, the design of multiple cavities can also improve the overall strength of the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263.

[0047] For example, the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 may each be designed to have a multi-cavity structure including a small upper and a large lower, so as to ensure a simple and reliable connection of the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 to the inner rocker panel support beam 261, and so as to improve the reliability of the connection of the first inner rocker panel support beam lower connector 262 and the second inner rocker panel support beam lower connector 263 to the rocker panel beam 244, thereby ensuring connection strength at the connection location.

[0048] The body structure further includes an outer side wall panel 241, which is positioned on one side of the lower rocker panel 20 that is farther from the inner side wall panel 243 of the rocker panel beam 244, and the outer side wall panel 241 is connected to the inner rocker panel sealing plate 247.

[0049] As shown in Figures 1 and 2, in embodiments of the present application, the body structure may further include an outer sidewall panel 241, and the outer sidewall panel 241 and the inner sidewall panel 243 together form a sidewall structure. The outer sidewall panel 241 may be located on one side of the rocker panel beam 244 that is farther from the inner sidewall panel 243, and the outer sidewall panel 241 is connected to the inner rocker panel sealing plate 247 so that the rocker panel beam 244, the inner rocker panel sealing plate 247 and other structures can be protected by the outer sidewall panel 241, and so that the outer sidewall panel 241 can also provide protection in the event of a collision, thereby improving the safety of the vehicle in which the body structure is used.

[0050] In addition, the side wall outer panel 241 is connected to the inner rocker panel sealing plate 247 to ensure that greater impacts can be transmitted to the inner rocker panel sealing plate 247 via the side wall outer panel 241, so that the inner rocker panel sealing plate 247 can absorb energy and be used to buffer greater impacts, thereby improving the safety of the vehicle in which the body structure is used (e.g., sports car).

[0051] In the vehicle's height direction, at least a portion of the upper rocker panel 10 is higher than the seat cushion.

[0052] As shown in Figure 7, the seat cushion height generally refers to the height of the surface of the seat on which the occupant sits, and in the height direction of the vehicle body structure, at least a portion of the upper rocker panel 10 is higher than the seat cushion so that the inner rocker panel sealing plate 247 in the upper rocker panel 10 can be used to provide reliable protection to the occupant in the passenger compartment, thereby reducing the impact of external forces on the occupant during a side collision.

[0053] The vehicle body structure further includes a vehicle door 30, which is positioned on one side of the side wall outer panel 241 furthest from the inner rocker panel sealing plate 247, and the vehicle door 30 is further provided with a door collision prevention beam 301, the projection of the door collision prevention beam 301 in the width direction of the vehicle at least partially overlaps with the projection of the upper rocker panel 10 in the width direction of the vehicle.

[0054] As shown in Figure 2, in the embodiment of the present application, the vehicle body structure further includes a vehicle door 30, which is located on one side of the side wall outer panel 241 away from the inner rocker panel sealing plate 247, i.e., the vehicle door 30 is located outside the side wall outer panel 241. In the event of a collision, the vehicle door 30 can protect the vehicle body structure as a first protection.

[0055] As shown in Figures 7 and 8, in the embodiments of this application, the door collision prevention beam 301 is further positioned inside the vehicle door 30, and the door collision prevention beam 301 may be fixed to the vehicle door 30 as an independent structure, and the door collision prevention beam 301 and the vehicle door 30 may also be formed integrally.

[0056] The projection of the door collision prevention beam 301 in the width direction of the vehicle body structure at least partially overlaps with the projection of the upper rocker panel 10 in the width direction of the vehicle body structure; that is, the front end of the door collision prevention beam 301 at least partially overlaps with the A-pillar 253 in the length direction of the vehicle body structure, and the rear end of the door collision prevention beam 301 at least partially overlaps with the C-pillar in the length direction of the vehicle body structure, with the amount of partial overlap being 100 mm to 200 mm. In this way, force transmission paths from the vehicle door 30 to the door collision prevention beam 301 and from the door collision prevention beam 301 to each structure in the vehicle can be formed to promote the dispersion and cushioning of collision impact, thereby reducing the impact on occupants at the door opening and improving the safety of the vehicle in which the vehicle body structure is used.

[0057] In addition, in order to adjust the amount of overlap between the projection of the door collision prevention beam 301 in the width direction of the vehicle body structure and the projection of the inner rocker panel sealing plate 247 of the upper rocker panel 10 in the width direction of the vehicle body structure, the amount of overlap between the front end of the door collision prevention beam 301 and the A-pillar 253 in the length direction of the vehicle body structure can be adjusted, and the amount of overlap between the rear end of the door collision prevention beam 301 and the C-pillar 254 in the length direction of the vehicle body structure can also be adjusted. As a result, the force transmission capability of the door collision prevention beam 301 can be adjusted, and the self-rigidity of the door collision prevention beam 301 can also be adjusted. For example, the amount of overlap between the projection of the door collision prevention beam 301 in the width direction of the vehicle body structure and the projection of the inner rocker panel sealing plate 247 in the width direction of the vehicle body structure can be increased in order to enhance the force transmission capability of the door collision prevention beam 301 and to enhance the self-rigidity of the door collision prevention beam 301.

[0058] One embodiment of this application provides a vehicle, the vehicle including the aforementioned body structure.

[0059] One embodiment of this application provides a method for determining the upper surface curve of an inner rocker panel sealing plate 247 using the aforementioned vehicle body structure. The determination method is: A step of obtaining a predetermined upper surface position of the inner rocker panel sealing plate 247 of the vehicle body structure, wherein the predetermined upper surface position includes a predetermined first point, a predetermined second point, and a predetermined third point, the predetermined first point being the point of minimum stress on the inner rocker panel sealing plate 247 during a frontal collision of the vehicle, the predetermined second point being the projected position of the central contact point between the human body and the seat during the collision, and the predetermined third point being the critical point where the human body enters or exits the vehicle. Includes, The predetermined first point, predetermined second point, and predetermined third point are all hypothetical positional points determined based on the body-vehicle relationship and collision requirements when a person enters or exits a vehicle. The predetermined first point is the point of minimum stress on the inner rocker panel sealing plate 247 during a frontal collision, and the height of the predetermined first point may be 430 mm. The predetermined second point is the projected position of the central contact point between the person and the seat during a collision, generally corresponding to the area of ​​the person's buttocks when the seat has moved to the halfway point of the person's body, and the height of the predetermined second point may be between 430 mm and 530 mm. The predetermined third point is the critical point where a person enters or exits a vehicle. This third point is generally located at a specific distance rearward from the front wheel hub, and this distance relates to the vehicle's wheelbase; if the wheelbase is less than 2500 mm, this distance is 1448 mm; if the wheelbase is greater than 2900 mm, this distance is 1648 mm; and if the wheelbase is between 2500 mm and 2900 mm, this distance is the sum of half the wheelbase and 198 mm. For a given third point, the area corresponding to the buttocks of the human body when the seat is moved to the final position of the human body may also be referenced, and the height of the given third point may be 530 mm, and the height of the buttocks of the human body when the occupant is seated. The decision method is also, A step of determining the actual upper surface curve of the inner rocker panel sealing plate 247, wherein the actual upper surface curve includes a first height position, a second height position, and a third height position, the first height position, the second height position, and the third height position correspond in a one-to-one manner to a predetermined first point, a predetermined second point, and a predetermined third point, respectively, the first height point being higher than the predetermined first point, the second height point being higher than the predetermined second point, the third height point being higher than the predetermined third point, and the first height point, the second height point, and the third height point being continuously connected to form the actual upper surface curve of the inner rocker panel sealing plate 247, i.e., the lowest limit position of the upper surface of the inner rocker panel sealing plate 247 is determined. Includes, A first height point is set higher than a predetermined first point, a second height point is set higher than a predetermined second point, and a third height point is set higher than a predetermined third point. The boundary of the inner rocker panel sealing plate 247 (i.e., the lowest limit position of the upper surface of the inner rocker panel sealing plate 247), and the height transition trend can be determined basically by the positions of these three points, and a height within such a range can ensure vehicle safety by providing protection in most side and frontal collisions.

[0060] In this application, unless expressly specified and limited otherwise, the presence of a first feature "above" or "below" a second feature may be direct contact between the first and second features, or indirect contact between the first and second features via an intermediate medium. Furthermore, the presence of a first feature "over," "above," and "higher than" a second feature may mean that the first feature is directly above or diagonally above the second feature, or simply indicate that the horizontal height of the first feature exceeds the horizontal height of the second feature. The presence of a first feature "under," "below," and "lower than" a second feature may mean that the first feature is directly below or diagonally below the second feature, or simply indicate that the horizontal height of the first feature is less than the horizontal height of the second feature.

[0061] In this specification, any description relating to terms such as “one embodiment,” “several embodiments,” “an example,” “a specific example,” or “several examples” means that the specific features, structures, materials, or properties described in combination with that embodiment or example are included in at least one embodiment or example of this application. In this specification, the general expressions of the above terms do not necessarily apply to the same embodiment or example. Furthermore, the specific features, structures, materials, or properties described may be combined in appropriate manner in any one or more embodiments or examples. In addition, a person skilled in the art can conjugate and combine the various embodiments or examples and the features of the various embodiments or examples described herein, provided that they do not conflict with each other.

[0062] Although embodiments of this application have been illustrated and described above, it can be understood that the embodiments described herein are illustrative and should not be construed as limiting this application. Those skilled in the art can modify, alter, replace, and transform the embodiments described herein within the scope of this application.

Claims

1. It is a vehicle body structure, Upper rocker panel and lower rocker panel Equipped with, The lower rocker panel is connected to the upper rocker panel, and in the vehicle's height direction, at least a portion of the upper rocker panel is higher than the lower rocker panel. A vehicle body structure in which the height of the upper rocker panel gradually increases in the direction from the front end to the rear end of the vehicle.

2. The vehicle body structure according to claim 1, wherein, in the width direction of the vehicle, the size of the upper rocker panel is less than or equal to half the sum of the sizes of the lower rocker panel and the upper rocker panel.

3. The vehicle body structure according to claim 1 or 2, wherein in the width direction of the vehicle, at least a portion of the upper rocker panel is located on one side of the lower rocker panel that is closer to the passenger compartment.

4. The vehicle body structure according to any one of claims 1 to 3, wherein the top surface of the upper rocker panel is arc-shaped in the height direction of the vehicle.

5. The vehicle body structure according to any one of claims 1 to 4, further comprising an A-pillar and a C-pillar, wherein one end of the upper rocker panel is connected to the A-pillar and the other end of the upper rocker panel is connected to the C-pillar.

6. The vehicle body structure according to claim 5, further comprising a side impact box, wherein the side impact box is positioned at the connection point between the upper rocker panel and the C-pillar, and the side impact box is located on one side of the C-pillar furthest from the passenger compartment of the vehicle.

7. The vehicle body structure according to claim 5 or 6, wherein the upper rocker panel comprises a side wall inner panel and an inner rocker panel sealing plate, and the inner rocker panel sealing plate and the side wall inner panel are connected to form a cavity.

8. The vehicle body structure according to claim 7, wherein the upper rocker panel further comprises an inner rocker panel support beam, the inner rocker panel support beam is located within the cavity, and the height of the inner rocker panel support beam gradually increases in the direction from the front end to the rear end of the vehicle.

9. The vehicle body structure according to claim 8, wherein the front end of the inner rocker panel support beam is connected to the rocker panel beam of the lower rocker panel, the rear end of the inner rocker panel support beam is connected to the C-pillar, and in the height direction of the vehicle, the rear end of the inner rocker panel support beam is higher than the front end of the inner rocker panel support beam.

10. The vehicle body structure according to claim 9, further comprising a first inner rocker panel support beam lower connector, wherein the first inner rocker panel support beam lower connector is connected between the inner rocker panel support beam and the rocker panel beam.

11. The vehicle body structure according to claim 10, further comprising a second inner rocker panel support beam lower connector, wherein the second inner rocker panel support beam lower connector is connected between the inner rocker panel support beam and the rocker panel beam, and in the longitudinal direction of the vehicle, the second inner rocker panel support beam lower connector is positioned between the first inner rocker panel support beam lower connector and the C-pillar.

12. The vehicle body structure according to claim 11, wherein in the width direction of the vehicle, at least a portion of the lower connector of the first inner rocker panel support beam is located between the inner rocker panel support beam and the rocker panel beam.

13. The vehicle body structure according to claim 11 or 12, wherein in the width direction of the vehicle, at least a portion of the lower connector of the second inner rocker panel support beam is located between the inner rocker panel support beam and the rocker panel beam.

14. The vehicle body structure according to any one of claims 11 to 13, wherein the inner rocker panel support beam comprises at least one cavity extending in the longitudinal direction of the vehicle.

15. The vehicle body structure according to any one of claims 11 to 14, wherein the first inner rocker panel support beam lower connector comprises at least one cavity extending in the longitudinal direction of the vehicle, and the second inner rocker panel support beam lower connector comprises at least one cavity extending in the longitudinal direction of the vehicle.

16. The vehicle body structure according to any one of claims 7 to 15, further comprising an outer side wall panel, wherein the outer side wall panel is positioned on one side of the lower rocker panel beam furthest from the inner side wall panel, and the outer side wall panel is connected to the inner rocker panel sealing plate.

17. The vehicle body structure according to claim 16, further comprising a vehicle door, wherein the vehicle door is positioned on one side of the outer side wall panel furthest from the inner rocker panel sealing plate, and the vehicle door is further provided with a door collision prevention beam, wherein the projection of the door collision prevention beam in the width direction of the vehicle at least partially overlaps with the projection of the upper rocker panel in the width direction of the vehicle.

18. The vehicle body structure according to any one of claims 1 to 17, wherein in the height direction of the vehicle, at least a portion of the upper rocker panel is higher than the seat cushion.

19. A vehicle comprising the body structure described in any one of claims 1 to 18.

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