CN114162220A - Body in white and car - Google Patents
Body in white and car Download PDFInfo
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- CN114162220A CN114162220A CN202111440644.9A CN202111440644A CN114162220A CN 114162220 A CN114162220 A CN 114162220A CN 202111440644 A CN202111440644 A CN 202111440644A CN 114162220 A CN114162220 A CN 114162220A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/04—Door pillars ; windshield pillars
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D25/00—Superstructure or monocoque structure sub-units; Parts or details thereof not otherwise provided for
- B62D25/08—Front or rear portions
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
Abstract
The invention discloses a body-in-white and an automobile, and relates to the field of automobile bodies, wherein the body-in-white is used for bearing passengers and comprises a C column, a D column and a rear longitudinal beam; the C post includes the reinforcing plate, reinforcing plate and bearing structure down, wherein, go up the reinforcing plate and pass through bearing structure with reinforcing plate down and be connected, bearing structure extends a connection crossbeam towards D post one side, the other end and the D leg joint of connection crossbeam, bearing structure extends wheel hub package reinforcing plate towards back longeron one side, wheel hub package reinforcing plate is connected with the back longeron in the one side of keeping away from bearing structure, wheel hub package reinforcing plate is located between C post and the D post, the back longeron is successively connected lower reinforcing plate, wheel hub package reinforcing plate and D post respectively. The invention can solve the technical problems of high cost and heavy weight of the white automobile body caused by increasing the material thickness and strength of key parts to improve the torsional rigidity and safety performance of the automobile body in the prior art.
Description
Technical Field
The invention relates to the field of automobile bodies, in particular to a body-in-white and an automobile.
Background
With the rapid development of the automobile industry, the requirements of consumers on the comfort, safety and reliability of automobiles are higher and higher. The body-in-white is used as an installation carrier and a load bearing body of an engine, a transmission system, front and rear suspensions, an inner decoration and an outer decoration and the like, and the performance of the body-in-white is a main factor determining the controllability, the stability and the comfort of an automobile. The torsional rigidity and safety performance of the vehicle body are one of important contents for developing the white body performance, so that the white body has to have sufficient torsional rigidity and safety performance.
Currently, a more common body-in-white structure includes an a-pillar, a B-pillar, a C-pillar, and a D-pillar. Wherein, the A column is a vertical beam between an engine compartment and a passenger compartment, the B column is a vertical beam between a front side door and a rear side door, the C column is a vertical beam between the rear side door and rear window glass, and the D column is a vertical beam between the rear window glass and a tail door. Usually, the C column does not form a closed annular structure, and meanwhile, the C column is not connected with the D column, so that the torsional rigidity and the safety performance of the automobile body are poor, and the stability and the comfort of the rear row of the automobile are affected.
Therefore, the existing white automobile body generally has the technical problems that the cost of the white automobile body is high and the weight is heavy because the torsional rigidity and the safety performance of the automobile body are improved by increasing the material thickness and the strength of key parts.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a body-in-white and an automobile, and aims to solve the technical problems that the body-in-white is high in cost and heavy in weight due to the fact that the torsional rigidity and the safety performance of the body are improved by increasing the material thickness and the strength of key parts in the prior art.
One aspect of the present invention is to provide a body-in-white for carrying passengers, the body-in-white comprising: the C column, the D column and the rear longitudinal beam; the C column comprises an upper reinforcing plate, a lower reinforcing plate and a supporting structure, wherein the upper reinforcing plate is connected with the lower reinforcing plate through the supporting structure, the supporting structure extends out of a connecting cross beam towards one side of the D column, the other end of the connecting cross beam is connected with the D column, the supporting structure extends out of a hub wrapping reinforcing plate towards one side of a rear longitudinal beam, one side of the hub wrapping reinforcing plate, which is far away from the supporting structure, is connected with the rear longitudinal beam, the hub wrapping reinforcing plate is arranged between the C column and the D column, and the rear longitudinal beam is respectively connected with the lower reinforcing plate, the hub wrapping reinforcing plate and the D column in sequence.
Compared with the prior art, the invention has the beneficial effects that: according to the white car body, the supporting structure, the C column and the D column are in a double connection structure of the connecting cross beam and the rear longitudinal beam, so that the side collision stress can be uniformly transmitted and distributed to the connecting cross beam, the upper reinforcing plate, the lower reinforcing plate, the hub wrapping reinforcing plate, the front cross beam and the rear cross beam, the collision force transmission is more uniform, the side collision deformation of a passenger compartment is small, the safety performance of the car body and the torsional rigidity of the whole car are improved, and the excessive deformation and the fracture risk caused by the stress of a single structure are avoided. The torsional rigidity and safety performance of the vehicle body are improved without increasing the material thickness and strength of key parts, and meanwhile, the torsional rigidity and safety performance of the vehicle body are improved by connecting the support structure, the connecting cross beam and the rear longitudinal beam with the C column and the D column in a double mode, so that the production cost and weight of the vehicle body are not increased; therefore, the technical problems that in the prior art, the torsional rigidity and the safety performance of the body are improved by increasing the material thickness and the strength of key parts, and the body-in-white is high in cost and heavy in weight are solved.
According to one aspect of the above technical solution, the upper reinforcing plate, the lower reinforcing plate, the connecting beam, and the hub packet reinforcing plate intersect in the support structure from four directions, and the support structure is a radial support structure. According to the one hand of above-mentioned technical scheme, back longeron with bearing structure dual connection C post and D post to it is spacing to consolidate C post and D post.
According to one aspect of the above technical scheme, a plurality of through lightening holes are arranged on the connecting beam, the upper reinforcing plate and the lower reinforcing plate.
According to one aspect of the above technical solution, the upper reinforcing plate, the lower reinforcing plate and the hub packet reinforcing plate are made of a material combining strength and part formability.
According to one aspect of the technical scheme, a skylight rear cross beam is arranged at one end, far away from the lower reinforcing plate, of the upper reinforcing plate, a front cross beam is arranged at one end, far away from the upper reinforcing plate, of the lower reinforcing plate, and the skylight rear cross beam, the front cross beam, the supporting structure, the lower reinforcing plate and the upper reinforcing plate form a closed annular structure frame so as to reinforce and limit the C column.
According to one aspect of the technical scheme, a rear cross beam is arranged at one end, far away from the upper reinforcing plate, of the hub wrapping reinforcing plate, and the rear cross beam, the hub wrapping reinforcing plate, the supporting structure, the upper reinforcing plate and the skylight rear cross beam form a closed annular structure frame so as to reinforce and limit the C column.
According to one aspect of the technical scheme, the D column is a closed annular structure frame so as to reinforce and limit the D column.
An automobile comprising the body in white of any one of the above claims.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic view of a body-in-white construction in accordance with a first embodiment of the present invention;
FIG. 2 is a rear elevational view of a vehicle body in white in accordance with a first embodiment of the present invention;
FIG. 3is a schematic view of a supporting structure according to a first embodiment of the present invention;
FIG. 4 is a schematic view of a lightening hole in a first embodiment of the present invention;
FIG. 5 is a torsional stiffness test point diagram in accordance with a second embodiment of the present invention;
FIG. 6 is a side impact intrusion measurement test point map according to a second embodiment of the present invention;
the figure elements are illustrated in symbols:
the test structure comprises a C column 10, an upper reinforcing plate 11, a lower reinforcing plate 12, a supporting structure 13, a D column 20, a rear longitudinal beam 30, a front cross beam 40, a rear cross beam 50, a skylight rear cross beam 60, a first test point 70, a second test point 71, a third test point 72, a fourth test point 73, an R-door shoulder80, an R-door thorax81, an R-door abdomen82, an R-door pelv83, an upper reinforcing plate lightening hole 110, an upper reinforcing plate functional hole 111, a lower reinforcing plate lightening hole 120, an upper reinforcing plate functional hole 121, a connecting cross beam 130, a hub bag reinforcing plate 131, a supporting structure lightening hole 132 and a supporting structure functional hole 133.
Detailed Description
In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the invention are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and not for purposes of indicating or implying that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-4, a body-in-white according to a first embodiment of the present invention is shown for carrying passengers, wherein the body-in-white includes a C-pillar 10, a D-pillar 20, and a rear side member 30. The C-pillar 10 is a vertical beam between the rear side door and the rear window glass for carrying the second row of passengers. The C-pillar 10 includes an upper stiffener 11, a lower stiffener 12, and a support structure 13. The upper reinforcing plate 11 is arranged on one side, far away from the lower reinforcing plate 12, of the supporting structure 13, the upper reinforcing plate 11 is a cuboid vertical beam, the material is 1.2MM thick, 280VK material, the material is high in strength, and meanwhile, the material has the excellent characteristics of light weight, good process forming and the like, the safety performance of the white automobile body can be improved through the material, a plurality of through circular through holes penetrating through the material are formed in the upper reinforcing plate 11 and comprise functional holes 111 and lightening holes 110, the functional holes 111 are small-sized through holes and are used for bearing and connecting other parts of the white automobile body, and the number and the positions of the lightening holes 110 are determined by realizing light weight to the maximum extent under the standards of rigidity and safety performance of the white automobile body. Topology optimization is a mathematical method for optimizing material distribution in a given area according to given load conditions, constraints and performance indexes, and is a structural optimization. The size, shape, size and positioning of the lightening holes 110 are realized by the upper reinforcing plate 11 through a topological optimization method, and the maximum light weight of the upper reinforcing plate 11 is realized through a scientific and reasonable method, so that the weight of the whole white automobile sound is reduced, and the maximum light weight of a white automobile body is achieved. The upper reinforcing plate 11 is provided with a skylight rear cross beam 60 rear cross beam 50 on one side far away from the supporting structure 13, the skylight rear cross beam 60 rear cross beam 50 is used for bearing, connecting and fixing a skylight, and a plurality of penetrating functional holes are formed in the skylight rear cross beam 60 rear cross beam 50. The two ends of the rear cross beam 50 of the rear cross beam 60 of the skylight are respectively provided with an upper reinforcing plate 11.
Meanwhile, the upper reinforcing plate 11 is provided with a support structure 13 at a side away from the rear cross member 50 of the rear cross member 60 of the skylight, and the support structure 13 is a radiation support structure 13 for receiving other structural components. The lower reinforcing plate 12 is arranged on one side of the supporting structure 13, which is far away from the upper reinforcing plate 11, the lower reinforcing plate 12 is L-shaped and is made of materials with the thickness of 1.2MM and HC340/590DP, the materials meet the safety performance requirements, and the characteristics of light weight and good process formability are achieved, so that the safety performance of the body-in-white is improved, and similarly, the lower reinforcing plate 12 is provided with a plurality of functional holes 121 and lightening holes 120, and the functional holes are small in size and used for bearing and connecting other structural components; the number and the positions of the lightening holes 120 are determined according to the maximum realization of light weight under the standards of rigidity and safety performance of the white car body, the size, the shape and the positions of the lightening holes 120 are selected by adopting a topological optimization method, and the maximum light weight of the lower reinforcing plate 12 is realized by a scientific and reasonable method, so that the weight of the whole white car is reduced, and the maximum light weight of the white car is realized.
Wherein, the lower reinforcing plate 12 is provided with a front beam 40 on one side far away from the supporting structure 13, the front beam 40 is a cuboid beam, a plurality of penetrating functional holes are arranged in the front beam for bearing other structural components, and the two ends of the front beam are respectively provided with the lower reinforcing plate 12. The skylight rear cross beam 60, the rear cross beam 50, the front cross beam 40, the supporting structure 13, the upper reinforcing plate 11 and the lower reinforcing plate 12 form a closed annular structure framework to limit the skylight rear cross beam 60, the rear cross beam 50, the front cross beam 40 and the C column 10, and are connected into a whole to enable the whole white car body to be firmer. The single structure is prevented from bearing huge side impact force to cause overlarge deformation and even fracture risk of the single structure, and the safety of a body in white is reduced.
In addition, a hub package reinforcing plate 131 extends from one side of the supporting structure 13, which faces the rear longitudinal beam 30, the hub package reinforcing plate 131 is a vertical beam and is made of materials with the thickness of 1.8MM and DC03, the materials and the thicknesses meet the safety performance requirements, the safety performance of the white automobile body is improved by the characteristics of good process formability, and a plurality of functional holes are formed in the hub package reinforcing plate and are used for receiving other structural components. One side of the hub packet reinforcing plate 131, which is far away from the supporting structure 13, is radially provided with a rear cross beam 50, and the rear cross beam 50 is a cuboid cross beam and is also provided with a plurality of functional holes for receiving other structural components. And both ends of the rear cross member 50 are connected to hub pack reinforcing plates 131, respectively. The rear cross beam 50, the hub wrapping reinforcing plate 131, the upper reinforcing plate 11, the supporting structure 13 and the skylight rear cross beam 60 form a closed annular structure frame, so that the rear cross beam 50, the hub wrapping reinforcing plate 131, the skylight rear cross beam 60 rear cross beam 50 and the C column 10 are reinforced and limited. When the white car is stressed in side impact, the closed annular structure can uniformly transmit force to each position of the annular closed annular structure, the deformation is reduced, the uniformity of the side impact stress and the deformation resistance are improved, the safety of the white car body is improved, and meanwhile the torsional rigidity of the white car body is also improved. The single structure is prevented from bearing huge side impact force to cause overlarge deformation and even fracture risk of the single structure, and the safety of a body in white is reduced.
A connecting beam 130 extends from one side of the support structure 13 facing the D column 20, the connecting beam 130 is a cuboid beam, the material of the connecting beam is consistent with that of the upper reinforcing plate 11, the material thickness is 1.2MM, 280VK, the material strength is high, and the characteristics of light weight and excellent process forming performance are considered. Similarly, the connecting beam 130 is provided with a plurality of functional holes 133 and lightening holes 132, the functional holes 133 are used for bearing and connecting other structural components, the lightening holes 132 are used for realizing the maximum light weight of the connecting beam 130, the size, shape, size and positioning of the lightening holes 132 are realized by adopting a topological optimization method, the weight of the whole body-in-white is effectively reduced, and the maximum light weight of the body-in-white is achieved. The other end of the connecting beam 130 is connected with the D column 20, so that the mutual limiting of the C column 10 and the D column 20 is realized, when the body-in-white is in safe collision and force transmission, the pressures borne by the C column 10 and the D column 20 are mutually and uniformly distributed through the connecting beam 130, and the safety performance of the body-in-white is improved. The C-pillar 10 or the D-pillar 20 is prevented from being stressed alone during the safe collision, and the ideal effect of protecting the collision passenger is not achieved.
The side of the connecting beam 130 far away from the supporting structure 13 is provided with a D-pillar 20, the D-pillar 20 is used for receiving a rear window glass and a tail gate, and is a closed annular structure frame, and the D-pillar 20 is provided with a plurality of functional holes which are also used for bearing and connecting other structural components. The rear longitudinal beams 30 are respectively arranged at two ends of the D column 20 in the axial direction of one side far away from the skylight rear cross beam 60 and the rear cross beam 50, the rear longitudinal beams 30 are cuboid longitudinal beams, and the rear longitudinal beams 30, one side far away from the D ring, the hub wrap reinforcing plate 131 and the rear cross beam 50 are intersected at one point to form a radial structure, so that the rear longitudinal beams 30, the hub wrap reinforcing plate 131 and the rear cross beam 50 are mutually limited, and the collision stress is uniform. Meanwhile, the rear longitudinal beam 30, the lower reinforcing plate 12 and the front cross beam 40 meet at one point on the side far away from the hub wrap reinforcing plate 131 to form a radial structure, so that the rear longitudinal beam 30, the lower reinforcing plate 12 and the front cross beam 40 are limited mutually, the torsional rigidity of the body-in-white structure is improved due to the mutual connection of the rear longitudinal beams 30, and in the process of safe collision, the collision force is uniformly transmitted and distributed through the rear longitudinal beam 30, and the safety performance of the body-in-white is further improved.
The white car body forms three closed annular structure frames, the connecting cross beam 130 and the rear cross beam 50 connect the three closed annular structure frames to form a multi-ring connecting structure, and the white car body is further limited, so that the white car body frame is firmer, the side impact strength and the white car body deformation resistance are improved, and the white car body safety performance is improved. The upper reinforcing plate, the lower reinforcing plate 12, the connecting beam 130 and the hub packet reinforcing plate 131 intersect in the supporting structure 13 from four directions, and are in a radioactive structure. When the passenger compartment receives the collision, bearing structure 13 can pass power more evenly, and even each position of transmitting three closed loop configuration makes passenger compartment side impact deformation diminish, promotes security performance and automobile body torsional rigidity, avoids single structure atress alone when the collision, and rigidity can not reach the ideal effect, bears huge pressure simultaneously and can lead to single structure to produce deformation too big, has the fracture risk even, reduces the security performance of white automobile body. Lightening holes are added on the upper reinforcing plate 11, the lower reinforcing plate 12 and the connecting cross beam 130 through a topological optimization method, the size, the shape and the size of the lightening holes are selected, and the maximum lightening of the upper reinforcing plate 11, the lower reinforcing plate 12 and the connecting cross beam 130 is realized through a scientific and reasonable method, so that the whole weight of the white automobile sound is lightened, and the maximum lightening of the white automobile body is achieved.
Compare in prior art, the white automobile body that this embodiment provided, beneficial effect lies in: according to the white car body, the supporting structure, the C column and the D column are in a double connection structure of the connecting cross beam and the rear longitudinal beam, so that the side collision stress can be uniformly transmitted and distributed to the connecting cross beam, the upper reinforcing plate, the lower reinforcing plate, the hub wrapping reinforcing plate, the front cross beam and the rear cross beam, the collision force transmission is more uniform, the side collision deformation of a passenger compartment is small, the safety performance of the car body and the torsional rigidity of the whole car are improved, and the excessive deformation and the fracture risk caused by the stress of a single structure are avoided. The torsional rigidity and safety performance of the vehicle body are improved without increasing the material thickness and strength of key parts, and meanwhile, the torsional rigidity and safety performance of the vehicle body are improved by connecting the support structure, the connecting cross beam and the rear longitudinal beam with the C column and the D column in a double mode, so that the production cost and weight of the vehicle body are not increased; therefore, the technical problems that in the prior art, the torsional rigidity and the safety performance of the body are improved by increasing the material thickness and the strength of key parts, and the body-in-white is high in cost and heavy in weight are solved.
Referring to fig. 5-6, a vehicle according to a second embodiment of the present invention includes the body in white. The automobile is provided with a front suspension at one side far away from the C column, the two ends of the body-in-white are respectively connected with the front suspension, two connection points of the front suspension and the body-in-white are used as a first test point 70 and a second test point 71 of the torsional rigidity of the automobile body, the automobile is provided with a rear suspension at one side far away from the front suspension, the two ends of the body-in-white are respectively connected with the rear suspension, the two connection points of the rear suspension and the body-in-white are used as a third test point 72 and a fourth test point 73 of the torsional rigidity of the automobile body, and the four test points are symmetrical in pairs.
The method comprises the steps of simultaneously applying a positive Z-direction 3000N and a negative Z-direction 3000N to front suspensions at two ends of an automobile, then testing the displacement of a first test point 70, a second test point 71, a third test point 72 and a fourth test point 73 in the Z direction, and calculating the relative torsion angle of the automobile body according to test values of the four test points, wherein relevant parameters are shown in a table 1.
TABLE 1 white car body torsional rigidity comparison table
The first test point 70, the second test point 71, the third test point 72 and the fourth test point 73 of the automobile test in the prior art are 1.7507mm, -1.7576mm, 0.1024mm and-0.1021 mm respectively, and the relative torsion angles of the first test point 70, the second test point 71, the third test point 72 and the fourth test point 73 are 0.003739571rad correspondingly obtained according to calculation; the relative torsion angles of the automobiles of the multi-ring connecting structure and the radioactive supporting point structure are greatly reduced compared with the automobiles of the prior art, the deformation of the automobile body in the driving process is reduced, the relative torsion angles of the automobiles of the multi-ring connecting structure and the radioactive supporting point structure are greatly reduced compared with the prior art, the side impact resistance strength of the automobiles is increased, and the automobile collision deformation is reduced. The automobile body torsional rigidity of the multi-ring connecting structure and the radioactive supporting point structure is 970.684KN M/rad, the torsional rigidity is improved by 20.9% compared with the torsional rigidity of the prior art, the torsional rigidity of the automobile body is obviously improved, the multi-ring connecting structure and the radioactive supporting point structure enable the framework of the automobile to be more reasonable in arrangement and overlapping, the collision stress is more uniform, the side collision resistance is stronger, and the torsional rigidity of the automobile body is obviously improved.
In addition, the automobile can analyze the safety performance of the automobile according to the side impact intrusion amount tested on different positions. The C-pillar is a vertical beam between the rear side door and the rear window glass for protecting the safety of the second row of passengers due to side impact, so that the safety performance of the automobile is analyzed according to the side impact intrusion amount of each position of the second row. The side impact intrusion amount test method is characterized in that four positions of R-door short 80, R-door thorax81, R-door abdomen82 and R-door pelv83is are used as main test points, and the side impact intrusion amount test method is used for testing the side impact intrusion amount of an automobile with the prior art, a multi-ring connecting structure and a radioactive supporting point structure. The maximum side impact invasion amount of the test points at four positions of R-door short 80, R-door thorax81, R-door abdomen82 and R-door pelv83is is detected by that 1400kg of an impact car impacts the side face of the car at the speed of 50 KM/h. The maximum side impact invasion amount meets the requirement of 21_ CNCAP, 21_ CNCAP is a new Chinese vehicle evaluation rule, the maximum side impact invasion amounts of four position test points of R-door outputting 80, R-door thorax81, R-door abdomen82 and R-door pelv83is respectively do not exceed 120mm, 130mm and 140mm according to the requirement of a dummy damage value, and relevant parameters are shown in Table 2.
TABLE 2 comparison table of the side impact intrusion amount of the second-row passenger
Wherein the maximum side impact invasion amount of the automobile in the prior art is 103.8mm at the R-door curtain 80 test point, and the maximum side impact invasion amount of the automobile designed by the multi-ring connecting structure and the radioactive supporting point structure is 88.8mm, which is 14.5% lower than that of the R-door curtain 80 in the prior art; the maximum side impact invasion amount of the automobile in the prior art is 103.1mm at the R-door thorax81 test point, and the maximum side impact invasion amount of the automobile with the multi-ring connecting structure and the radioactive supporting point structure is 94.8mm, which is 8.1 percent lower than that of the R-door thorax81 in the prior art; the maximum side impact invasion amount of the automobile in the prior art is 129.4mm at the R-door abdomen82 test point, the maximum side impact invasion amount of the automobile with the multi-ring connecting structure and the radioactive supporting point structure is 118.7mm, and is reduced by 8.3% compared with the side impact invasion amount of the R-door abdomen82 in the prior art; the maximum side impact invasion amount of the automobile in the prior art is 139.6mm at the R-door pelv83is test point, the maximum side impact invasion amount of the automobile with the multi-ring connecting structure and the radioactive supporting point structure is 123.5mm, and is reduced by 11.5% compared with the side impact invasion amount of the R-door pelv83is in the prior art; compared with the prior art, the maximum side impact invasion amounts of the test points at the four positions of R-door curtain 80, R-door thorax81, R-door abdomen82 and R-door pelv83is are respectively reduced by 14.5%, 8.1%, 8.3% and 11.5%. The safety performance is obviously improved, the multi-ring connecting structure and the radioactive supporting point structure enable collision force transfer to be more uniform, the side collision deformation of the second row of passenger compartments is reduced, and the safety performance of the automobile is improved.
The design of the multi-ring connecting structure and the radioactive supporting point structure enables a vehicle body frame to be a whole, the torsional rigidity of a vehicle body of an automobile is improved, the collision force transmission and stress of the automobile are more uniform, the side collision strength and the deformation resistance strength are enhanced, the safety of the automobile is improved, the torsional rigidity of the vehicle body in the prior art is improved to 970KN M/rad from 802.2KN M/rad, the torsional rigidity of the vehicle body is improved by 20.9% compared with the prior art, the torsional rigidity of the vehicle body of the automobile is obviously improved, in addition, the maximum side collision invasion amounts of the test points at the positions of the second row of passengers R-door outer 80, R-door thorax81, R-door abdomen82 and R-door pelv83is are respectively reduced by 14.5%, 8.1%, 8.3% and 11.5% compared with the prior art, and the safety performance of the automobile is greatly improved. The torsional rigidity and the safety performance are both obviously improved, and the target requirements of the vehicle type are met.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the spirit of the invention, and these changes and modifications are all within the scope of the invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A body-in-white for carrying a passenger, characterized by: the body-in-white comprises a C column, a D column and a rear longitudinal beam; the C column comprises an upper reinforcing plate, a lower reinforcing plate and a supporting structure, wherein the upper reinforcing plate is connected with the lower reinforcing plate through the supporting structure, the supporting structure extends out of a connecting cross beam towards one side of the D column, the other end of the connecting cross beam is connected with the D column, the supporting structure extends out of a hub wrapping reinforcing plate towards one side of a rear longitudinal beam, one side of the hub wrapping reinforcing plate, which is far away from the supporting structure, is connected with the rear longitudinal beam, the hub wrapping reinforcing plate is arranged between the C column and the D column, and the rear longitudinal beam is respectively connected with the lower reinforcing plate, the hub wrapping reinforcing plate and the D column in sequence.
2. The body-in-white of claim 1, wherein the upper reinforcement panel, the lower reinforcement panel, the connecting cross member, and the hubcap reinforcement panel meet in the support structure from four directions, the support structure being a radial support structure.
3. The body-in-white of claim 1, wherein the rear side rail doubly connects the C-pillar and the D-pillar with the support structure to provide reinforcement and restraint for the C-pillar and the D-pillar.
4. The body-in-white of claim 1, wherein a plurality of through lightening holes are provided in the connecting cross member, the upper reinforcing plate and the lower reinforcing plate.
5. The body-in-white of claim 1, wherein the upper reinforcement plate, the lower reinforcement plate, and the hubcap reinforcement plate are made of a material combining material strength and part formability.
6. The body in white of claim 1, wherein the upper reinforcement plate is provided with a rear sunroof rail at an end remote from the lower reinforcement plate, the lower reinforcement plate is provided with a front rail at an end remote from the upper reinforcement plate, and the rear sunroof rail, the front rail, the support structure, the lower reinforcement plate, and the upper reinforcement plate form a closed ring structure frame to reinforce and limit the C-pillar.
7. The body in white of claim 1, wherein the hub packet stiffener is provided with a rear cross member at an end away from the upper stiffener, and the rear cross member, the hub packet stiffener, the support structure, the upper stiffener and the sunroof rear cross member form a closed ring structure frame to reinforce and limit the C-pillar.
8. The body in white of claim 1, wherein the D-pillar is a closed loop structural frame to stiffen and restrain the D-pillar.
9. An automobile, characterized by comprising a body in white according to any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111440644.9A CN114162220B (en) | 2021-11-30 | 2021-11-30 | White automobile body and automobile |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111440644.9A CN114162220B (en) | 2021-11-30 | 2021-11-30 | White automobile body and automobile |
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| CN114162220A true CN114162220A (en) | 2022-03-11 |
| CN114162220B CN114162220B (en) | 2023-06-06 |
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| CN114889706A (en) * | 2022-04-27 | 2022-08-12 | 江铃汽车股份有限公司 | Body-in-white structure and automobile |
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| CN114162220B (en) | 2023-06-06 |
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