CN113320594A - Vehicle body structure, modular vehicle body structure design method and automobile - Google Patents
Vehicle body structure, modular vehicle body structure design method and automobile Download PDFInfo
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- CN113320594A CN113320594A CN202110609700.0A CN202110609700A CN113320594A CN 113320594 A CN113320594 A CN 113320594A CN 202110609700 A CN202110609700 A CN 202110609700A CN 113320594 A CN113320594 A CN 113320594A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/14—Understructures, i.e. chassis frame on which a vehicle body may be mounted of adjustable length or width
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/09—Means for mounting load bearing surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
Abstract
The invention discloses a vehicle body structure, a modular vehicle body structure design method and an automobile, wherein the vehicle body structure comprises the following components: the platform universal module comprises a front frame assembly, a front floor assembly and a rear frame assembly, wherein the front floor assembly is connected with one end of the front frame assembly; the vehicle type universal module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly; the front overhang length adjusting component comprises a front anti-collision beam assembly connected with the other end of the front frame assembly; the wheel base adjusting component comprises a front floor rear section assembly which is connected with the front floor assembly and the rear frame assembly; the rear overhang length adjusting component comprises a trunk floor assembly connected with the rear frame assembly, a rear longitudinal beam connected with the rear frame assembly and the trunk floor assembly, and a rear anti-collision beam assembly connected with the rear longitudinal beam. The structure and the generalization method of the modular platform can realize the module generalization schemes of different platforms, thereby being beneficial to shortening the development period and reducing the development cost.
Description
Technical Field
The invention relates to the field of automobile body structures, in particular to an automobile body structure, a modular automobile body structure design method and an automobile.
Background
In order to shorten the development period and reduce the development cost, automobile development gradually changes from single-vehicle-type development to platform development and then to modular platform development. In the platform development, the lower vehicle body development is a key and difficult point, the vehicle body platform development is limited by vehicle types such as SUV \ MPV \ SEDAN and the like, and the vehicle body platform development is difficult to realize a universal scheme due to different requirements of the length, the width, the wheelbase, the front suspension length, the rear suspension length and the like of the whole vehicle. The prior art also relates to an arrangement structure and a modular design method of a vehicle body platform, but the prior art is difficult to simultaneously satisfy a modular structure scheme of a platform shared by a pure electric vehicle type and a hybrid vehicle type.
Disclosure of Invention
The invention aims to overcome the defects of the background technology and provides a vehicle body structure, a modular vehicle body structure design method and a vehicle.
In a first aspect, there is provided a vehicle body structure including:
the platform universal module comprises a front frame assembly, a front floor assembly and a rear frame assembly, wherein the front floor assembly is connected with one end of the front frame assembly;
the vehicle type universal module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly;
the front overhang length adjusting assembly comprises a front anti-collision beam assembly connected with the other end of the front frame assembly;
the wheel base adjusting component comprises a front floor rear section assembly which is connected with the front floor assembly and the rear frame assembly;
the rear overhang length adjusting component comprises a trunk floor assembly connected with the rear frame assembly, a rear longitudinal beam connected with the rear frame assembly and the trunk floor assembly, and a rear anti-collision beam assembly connected with the rear longitudinal beam.
According to the first aspect, in a first possible implementation manner of the first aspect, the lengths and widths of the front frame assembly, the front floor assembly and the rear frame assembly are constant values.
According to the first aspect, in a second possible implementation manner of the first aspect, the vehicle type general module further includes a left side width adjusting component and a right side width adjusting component respectively disposed at two sides of the front floor assembly;
the left side width adjusting component comprises a left threshold beam connected with the front floor assembly and the front floor rear-section assembly, and a left A-pillar lower inner plate connected with the left threshold beam and the front frame assembly;
the right side width adjustment subassembly include with preceding floor assembly with the right threshold roof beam that preceding floor back end assembly is connected, and with right threshold roof beam and preceding frame assembly the back plate under the right A post of connection.
According to the first aspect, in a third possible implementation manner of the first aspect, the vehicle body structure further comprises a powertrain support connected with the front frame assembly, and the powertrain support comprises a hybrid powertrain support or an electric powertrain support.
According to a third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, the hybrid power assembly bracket comprises an engine suspension bracket connected with the front frame assembly, a hybrid motor suspension bracket connected with the front frame assembly, and a fuel tank fixing bracket connected with the rear frame assembly.
According to a third possible implementation manner of the first aspect, in a fifth possible implementation manner of the first aspect, the electric powertrain support comprises an electric motor suspension support connected with the front frame assembly.
In a sixth possible implementation form of the first aspect, the vehicle body structure further comprises a rear floor assembly connected to the rear frame assembly.
In a second aspect, a method for designing a modular vehicle body structure is provided, comprising the steps of:
acquiring a platform boundary and a platform general module basic model;
acquiring a platform general module model according to the platform boundary and the platform general module basic model;
obtaining a vehicle type boundary and a vehicle type general module basic model;
acquiring a vehicle type universal module model according to the platform universal module model, the vehicle type boundary and the vehicle type universal module basic model;
and acquiring vehicle type structure data according to the platform general module model and the vehicle type general module model.
According to the second aspect, in a first possible implementation manner of the second aspect, after the step of "obtaining the vehicle type structure data according to the platform generic module model and the vehicle type generic module model", the method includes the following steps:
acquiring a power assembly support model;
and acquiring vehicle body structure data according to the vehicle type structure data and the power assembly support model.
In a third aspect, an automobile is provided, comprising the vehicle body structure of any one of the above.
Compared with the prior art, the modular platform structure and the generalization method can realize the module generalization schemes of different platforms, thereby being beneficial to shortening the development period and reducing the development cost.
Drawings
FIG. 1 is an isometric view of a vehicle body structure provided by an embodiment of the present invention;
FIG. 2 is an exploded view of a vehicle body structure provided by an embodiment of the present invention;
FIG. 3 is a top plan view of a vehicle body structure provided by an embodiment of the present invention;
FIG. 4 is a schematic flow chart of a method for designing a modular vehicle body structure according to an embodiment of the present invention.
Reference numerals: 050. a front impact beam assembly; 100. a front frame assembly; 200. a front floor assembly; 210. a front floor rear section assembly; 300. a rear frame assembly; 400. a rear floor assembly; 500. a luggage floor assembly; 610. a rear stringer; 700. a rear impact beam assembly; 800. a left threshold beam; 900. a left A column lower inner plate; 810. a right sill beam; 910. the right A column is arranged on the lower inner plate.
Detailed Description
Reference will now be made in detail to the present embodiments of the invention, examples of which are illustrated in the accompanying drawings. While the invention will be described in conjunction with the specific embodiments, it will be understood that they are not intended to limit the invention to the embodiments described. On the contrary, it is intended to cover alternatives, modifications, and equivalents as may be included within the spirit and scope of the invention as defined by the appended claims. It should be noted that the method steps described herein may be implemented by any functional block or functional arrangement, and that any functional block or functional arrangement may be implemented as a physical entity or a logical entity, or a combination of both.
In order that those skilled in the art will better understand the present invention, the following detailed description of the invention is provided in conjunction with the accompanying drawings and the detailed description of the invention.
Note that: the example to be described next is only a specific example, and does not limit the embodiments of the present invention necessarily to the following specific steps, values, conditions, data, orders, and the like. Those skilled in the art can, upon reading this specification, utilize the concepts of the present invention to construct more embodiments than those specifically described herein.
Referring to fig. 1, an embodiment of the present invention provides a vehicle body structure, including:
the platform universal module comprises a front frame assembly 100, a front floor assembly 200 connected with one end of the front frame assembly 100 and a rear frame assembly 300;
the vehicle type universal module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly;
wherein the front overhang length adjusting component comprises a front anti-collision beam assembly 050 connected with the other end of the front frame assembly 100;
the wheel base adjusting component comprises a front floor rear section assembly 210 connecting the front floor assembly 200 and the rear frame assembly 300;
the rear overhang length adjusting assembly includes a trunk floor assembly 500 connected to the rear frame assembly 300, a rear side member 610 connected to the rear frame assembly 300 and the trunk floor assembly 500, and a rear impact beam assembly 700 connected to the rear side member 610.
Specifically, in this embodiment, a modular platform structure is provided from a modular platform development idea, by dividing different modules into lower vehicle bodies and by a modular architecture generalization strategy, and the modular platform structure is adaptable to vehicle types of different platforms, such as SUV, MPV, SEDAN and other vehicle types, and can meet the requirements of the lower vehicle body structure of the platform with changes in front overhang length, wheelbase, rear overhang length, vehicle width and the like of different vehicle type series.
Defining the platform general modules as follows: the front frame assembly 100 and the front floor assembly 200 are connected by welding or bolts, and the connection mode of the front frame assembly 100 and the front floor assembly 200 is not particularly limited, and only the strength after connection is ensured to meet the requirement.
The length and width of the front frame assembly 100, the front floor assembly 200 and the rear frame assembly 300 are fixed values, that is, the parts in the platform universal module are universal parts of each platform, and the size of the parts is fixed. However, specific structures of the platform general modules of different vehicle models are different, so that on the premise that the length and the width are not changed, a platform boundary and a platform general module basic model are obtained, the platform boundary is the specific structural requirements of parts in the platform general module, such as a connection mode, material characteristics and the like, and the platform general module basic model is a model determined by the obtained basic structure in advance and can be directly called.
In addition, for the length direction of the vehicle body, the length of the whole vehicle is equal to the front suspension length + the wheel base + the rear suspension length, and in order to realize the modularization and the generalization of the lifting platform, the length of the front frame assembly 100, the length of the front floor assembly 200 and the length of the rear frame assembly 300 are not changed; the length change of different whole vehicles is realized through the change of the front overhang length, the wheel base and the rear overhang length.
The universal vehicle model module is a component module which can be commonly used by a hybrid vehicle model and an electric vehicle model, but the lengths and the widths of vehicle bodies of different vehicle models are possibly different, so that the sizes of components in the universal vehicle model module are required to be adjusted. Therefore, a vehicle type boundary and a vehicle type general module basic model are obtained, the vehicle type boundary is a specific structural requirement of parts in the vehicle type general module, such as a connection mode, material characteristics, a vehicle body length (a front overhang length, a wheel base, a rear overhang length) and the like, and the vehicle type general module basic model is a model determined by a pre-obtained basic structure and can be directly called. And acquiring a universal module model of the vehicle type according to the universal module model of the platform, the boundary of the vehicle type and the basic model of the universal module of the vehicle type, and determining that the mutually connected parts in the universal module model of the platform and the universal module model of the vehicle type can be mutually matched without exceeding a preset allowable error range of the boundary.
For the adjustment of the length direction of the vehicle body, the vehicle type general module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly. The front overhang length adjusting component is used for adjusting the front overhang length and comprises a front anti-collision beam assembly 050 connected with the other end of the front frame assembly 100. The front overhang length change is realized through the length change of the front anti-collision beam assembly 050X direction, for the purpose of promoting universalization, the interfaces of the front anti-collision beam assembly 050 and the mounting hole positions of the front longitudinal beam of the front frame assembly 100 are kept uniform, and the mounting hole positions of the front anti-collision beam assembly and the front longitudinal beam of the front frame assembly 100 are not adjusted among all vehicle types.
The wheel base adjusting assembly is used for adjusting the wheel base, and comprises a front floor rear section assembly 210 connecting the front floor assembly 200 and the rear frame assembly 300. The wheel base is changed by keeping the length of the front floor assembly 200X constant and the length of the front floor rear assembly 210X constant. And because the EV (electric) type need arrange the battery package of different electric quantities, can keep battery package width unanimous, battery package length is different, and long wheel base adapts to big electric quantity battery package (length is long), and short wheel base can adapt to the demand of little electric quantity battery package (length is short).
The rear overhang length adjusting assembly is used for adjusting the rear overhang length, and comprises a trunk floor assembly 500 connected with the rear frame assembly 300, a rear longitudinal beam 610 connected with the rear frame assembly 300 and the trunk floor assembly 500, and a rear impact beam assembly 700 connected with the rear longitudinal beam 610. The change of the rear overhang length is realized by the change of the 500X-direction length of the trunk floor assembly, the X-direction length of the rear longitudinal beam 610 and the length of the rear anti-collision beam assembly 700, wherein the interfaces of the mounting hole positions of the rear anti-collision beam assembly 700 and the rear longitudinal beam 610 are kept uniform, and the mounting hole positions of the rear anti-collision beam assembly and the rear longitudinal beam 610 are not adjusted among all vehicle types.
In addition, the vehicle body structure further includes a rear floor assembly 400 connected to the rear frame assembly 300, and the rear floor assembly 400 has a constant length but is shaped to fit both PHEV and EV models. The structure and the generalization method of the modular platform can realize the module generalization schemes of different platforms, thereby being beneficial to shortening the development period and reducing the development cost.
Optionally, in another embodiment of the present invention, the vehicle type general module further includes a left width adjusting assembly and a right width adjusting assembly respectively disposed at two sides of the front floor assembly 200;
wherein the left side width adjustment assembly comprises a left rocker beam 800 connected with the front floor assembly 200 and the front floor rear-section assembly 210, and a left a-pillar lower inner panel 900 connected with the left rocker beam 800 and the front frame assembly 100;
the right side width adjustment assembly includes a right rocker beam 810 connected to the front floor assembly 200 and the front floor rear section assembly 210, and a right a-pillar rocker 910 connected to the right rocker beam 810 and the front frame assembly 100.
Specifically, in this embodiment, in order to improve the modularization and generalization of the platform, the width of the front frame assembly 100, the width of the front floor assembly 200, and the width of the rear frame assembly 300 are not changed. The vehicle type general module is a part module which can be commonly used by a hybrid vehicle type and an electric vehicle type, but the lengths and the widths of vehicle bodies of different vehicle types are different, so the sizes of parts in the vehicle type general module need to be adjusted. For the adjustment in the width direction of the vehicle body, the vehicle type general module includes a left side width adjustment assembly and a right side width adjustment assembly respectively disposed at both sides of the front floor assembly 200, wherein, in general, the left side width adjustment assembly and the right side width adjustment assembly are symmetrical to each other.
The left side width adjustment assembly includes a left rocker beam 800 connected to the front floor assembly 200 and the front floor rear section assembly 210, and a left a pillar rocker panel 900 connected to the left rocker beam 800 and the front frame assembly 100. The right side width adjustment assembly includes a right rocker beam 810 connected to the front floor assembly 200 and the front floor rear section assembly 210, and a right a-pillar rocker 910 connected to the right rocker beam 810 and the front frame assembly 100.
The width change of the vehicle body structure is realized by the width change of the left threshold beam 800, the right threshold beam 810, the left A-pillar lower inner plate 900 and the right A-pillar lower inner plate 910, wherein the length and the width of the welding lap of the interface of the left threshold beam 800 and the right threshold beam 810 with the front floor assembly 200 (the front floor rear section assembly 210) are respectively kept the same; the left a-pillar lower inner panel 900 and the right a-pillar lower inner panel 910 are respectively identical in length and width to the interface, i.e., the weld lap, of the front frame assembly 100 (the front floor rear section assembly 210).
Optionally, in another embodiment of the present invention, the vehicle body structure further comprises a powertrain cradle connected to the front frame assembly 100, the powertrain cradle being a module defining a vehicle type difference, and the corresponding powertrain cradle being different for PHEV and EV vehicle types due to their different powers. Therefore, the powertrain mount includes a hybrid powertrain mount or an electric powertrain mount, and one of the hybrid powertrain mount or the electric powertrain mount is selected in the same vehicle body structure. After the vehicle model structure data are obtained, a power assembly support model and power assembly support models corresponding to different types of power vehicle models are obtained, and finally vehicle body structure data are obtained according to the vehicle model structure data and the power assembly support models.
The main differences of the platform carrying different power assemblies to the vehicle body structure are reflected in the installation of a front engine room power assembly and an under-floor structure, namely, an engine is arranged in a front engine room of a general PHEV type, and the engine is not required to be arranged in the front engine room of the EV type; besides a battery pack, a fuel tank is required to be arranged under the floor of a general PHEV, and the fuel tank is not arranged under the floor of the EV.
Therefore, on the premise of keeping the front frame universal, the carrying of the power assembly is met through different power mounting supports and mounting positions. Wherein, engine suspension support is arranged to the PHEV motorcycle type. The EV type engine room is free of an engine, and only a motor suspension bracket (with a front motor type) needs to be arranged.
Alternatively, in further embodiments of the present invention, the hybrid powertrain mounts include an engine mount coupled to the front frame assembly 100, a hybrid engine mount coupled to the front frame assembly 100, and a fuel tank mount coupled to the rear frame assembly 300.
Optionally, in a further embodiment of the present invention, the electric powertrain support includes an electric motor suspension support coupled to the front frame assembly 100.
Optionally, in further embodiments of the present invention, the vehicle body structure further includes a rear floor assembly 400 connected to the rear frame assembly 300. On the premise of keeping the structure of the rear frame assembly 300 universal, the requirements of arranging the battery pack and the fuel tank under the floor of the PHEV type are met through the structure of the PHEV type rear floor assembly 400. However, the overlap weld joints of the rear floor assembly 400 and the rear frame assembly 300 of the PHEV and EV models are kept in the same shape and size, thereby realizing the generalization of the rear frame assembly 300.
As shown in fig. 4, the present invention provides a modular vehicle body structure design method, characterized by comprising the steps of:
acquiring a platform boundary and a platform general module basic model;
acquiring a platform general module model according to the platform boundary and the platform general module basic model;
obtaining a vehicle type boundary and a vehicle type general module basic model;
acquiring a vehicle type universal module model according to the platform universal module model, the vehicle type boundary and the vehicle type universal module basic model;
and acquiring vehicle type structure data according to the platform general module model and the vehicle type general module model.
Acquiring a power assembly support model;
and acquiring vehicle body structure data according to the vehicle type structure data and the power assembly support model.
Specifically, in this embodiment, a modular platform structure is provided from a modular platform development idea, by dividing different modules into lower vehicle bodies and by a modular architecture generalization strategy, and the modular platform structure is adaptable to vehicle types of different platforms, such as SUV, MPV, SEDAN and other vehicle types, and can meet the requirements of the lower vehicle body structure of the platform with changes in front overhang length, wheelbase, rear overhang length, vehicle width and the like of different vehicle type series.
Defining the platform general modules as follows: the front frame assembly 100 and the front floor assembly 200 are connected by welding or bolts, and the connection mode of the front frame assembly 100 and the front floor assembly 200 is not particularly limited, and only the strength after connection is ensured to meet the requirement.
The length and width of the front frame assembly 100, the front floor assembly 200 and the rear frame assembly 300 are fixed values, that is, the parts in the platform universal module are universal parts of each platform, and the size of the parts is fixed. However, specific structures of the platform general modules of different vehicle models are different, so that on the premise that the length and the width are not changed, a platform boundary and a platform general module basic model are obtained, the platform boundary is the specific structural requirements of parts in the platform general module, such as a connection mode, material characteristics and the like, and the platform general module basic model is a model determined by the obtained basic structure in advance and can be directly called.
In addition, for the length direction of the vehicle body, the length of the whole vehicle is equal to the front suspension length + the wheel base + the rear suspension length, and in order to realize the modularization and the generalization of the lifting platform, the length of the front frame assembly 100, the length of the front floor assembly 200 and the length of the rear frame assembly 300 are not changed; the length change of different whole vehicles is realized through the change of the front overhang length, the wheel base and the rear overhang length.
The universal vehicle model module is a component module which can be commonly used by a hybrid vehicle model and an electric vehicle model, but the lengths and the widths of vehicle bodies of different vehicle models are possibly different, so that the sizes of components in the universal vehicle model module are required to be adjusted. Therefore, a vehicle type boundary and a vehicle type general module basic model are obtained, the vehicle type boundary is a specific structural requirement of parts in the vehicle type general module, such as a connection mode, material characteristics, a vehicle body length (a front overhang length, a wheel base, a rear overhang length) and the like, and the vehicle type general module basic model is a model determined by a pre-obtained basic structure and can be directly called. And acquiring a universal module model of the vehicle type according to the universal module model of the platform, the boundary of the vehicle type and the basic model of the universal module of the vehicle type, and determining that the mutually connected parts in the universal module model of the platform and the universal module model of the vehicle type can be mutually matched without exceeding a preset allowable error range of the boundary.
For the adjustment of the length direction of the vehicle body, the vehicle type general module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly. The front overhang length adjusting component is used for adjusting the front overhang length and comprises a front anti-collision beam assembly 050 connected with the other end of the front frame assembly 100. The front overhang length change is realized through the length change of the front anti-collision beam assembly 050X direction, for the purpose of promoting universalization, the interfaces of the front anti-collision beam assembly 050 and the mounting hole positions of the front longitudinal beam of the front frame assembly 100 are kept uniform, and the mounting hole positions of the front anti-collision beam assembly and the front longitudinal beam of the front frame assembly 100 are not adjusted among all vehicle types.
The wheel base adjusting assembly is used for adjusting the wheel base, and comprises a front floor rear section assembly 210 connecting the front floor assembly 200 and the rear frame assembly 300. The wheel base is changed by keeping the length of the front floor assembly 200X constant and the length of the front floor rear assembly 210X constant. And because the EV (electric) type need arrange the battery package of different electric quantities, can keep battery package width unanimous, battery package length is different, and long wheel base adapts to big electric quantity battery package (length is long), and short wheel base can adapt to the demand of little electric quantity battery package (length is short).
The rear overhang length adjusting assembly is used for adjusting the rear overhang length, and comprises a trunk floor assembly 500 connected with the rear frame assembly 300, a rear longitudinal beam 610 connected with the rear frame assembly 300 and the trunk floor assembly 500, and a rear impact beam assembly 700 connected with the rear longitudinal beam 610. The change of the rear overhang length is realized by the change of the 500X-direction length of the trunk floor assembly, the X-direction length of the rear longitudinal beam 610 and the length of the rear anti-collision beam assembly 700, wherein the interfaces of the mounting hole positions of the rear anti-collision beam assembly 700 and the rear longitudinal beam 610 are kept uniform, and the mounting hole positions of the rear anti-collision beam assembly and the rear longitudinal beam 610 are not adjusted among all vehicle types.
In addition, the vehicle body structure further includes a rear floor assembly 400 connected to the rear frame assembly 300, and the rear floor assembly 400 has a constant length but is shaped to fit both PHEV and EV models.
In order to improve the modularization and the generalization of the platform, the width of the front frame assembly 100, the width of the front floor assembly 200 and the width of the rear frame assembly 300 are not changed. The vehicle type general module is a part module which can be commonly used by a hybrid vehicle type and an electric vehicle type, but the lengths and the widths of vehicle bodies of different vehicle types are different, so the sizes of parts in the vehicle type general module need to be adjusted. For the adjustment in the width direction of the vehicle body, the vehicle type general module includes a left side width adjustment assembly and a right side width adjustment assembly respectively disposed at both sides of the front floor assembly 200, wherein, in general, the left side width adjustment assembly and the right side width adjustment assembly are symmetrical to each other.
The left side width adjustment assembly includes a left rocker beam 800 connected to the front floor assembly 200 and the front floor rear section assembly 210, and a left a pillar rocker panel 900 connected to the left rocker beam 800 and the front frame assembly 100. The right side width adjustment assembly includes a right rocker beam 810 connected to the front floor assembly 200 and the front floor rear section assembly 210, and a right a-pillar rocker 910 connected to the right rocker beam 810 and the front frame assembly 100.
The width change of the vehicle body structure is realized by the width change of the left threshold beam 800, the right threshold beam 810, the left A-pillar lower inner plate 900 and the right A-pillar lower inner plate 910, wherein the length and the width of the welding lap of the interface of the left threshold beam 800 and the right threshold beam 810 with the front floor assembly 200 (the front floor rear section assembly 210) are respectively kept the same; the left a-pillar lower inner panel 900 and the right a-pillar lower inner panel 910 are respectively identical in length and width to the interface, i.e., the weld lap, of the front frame assembly 100 (the front floor rear section assembly 210).
The vehicle body structure further includes a power assembly bracket connected to the front frame assembly 100, the power assembly bracket being a module defining a vehicle type difference, and the corresponding power assembly bracket having a difference for the PHEV vehicle type and the EV vehicle type due to a difference in power thereof. Therefore, the powertrain mount includes a hybrid powertrain mount or an electric powertrain mount, and one of the hybrid powertrain mount or the electric powertrain mount is selected in the same vehicle body structure. After the vehicle model structure data are obtained, a power assembly support model and power assembly support models corresponding to different types of power vehicle models are obtained, and finally vehicle body structure data are obtained according to the vehicle model structure data and the power assembly support models.
The main differences of the platform carrying different power assemblies to the vehicle body structure are reflected in the installation of a front engine room power assembly and an under-floor structure, namely, an engine is arranged in a front engine room of a general PHEV type, and the engine is not required to be arranged in the front engine room of the EV type; besides a battery pack, a fuel tank is required to be arranged under the floor of a general PHEV, and the fuel tank is not arranged under the floor of the EV.
Therefore, on the premise of keeping the front frame universal, the carrying of the power assembly is met through different power mounting supports and mounting positions. Wherein, engine suspension support is arranged to the PHEV motorcycle type. The EV type engine room is free of an engine, and only a motor suspension bracket (with a front motor type) needs to be arranged.
The vehicle body structure also includes a rear floor assembly 400 connected to the rear frame assembly 300. On the premise of keeping the structure of the rear frame assembly 300 universal, the requirements of arranging the battery pack and the fuel tank under the floor of the PHEV type are met through the structure of the PHEV type rear floor assembly 400. However, the overlap weld joints of the rear floor assembly 400 and the rear frame assembly 300 of the PHEV and EV models are kept in the same shape and size, thereby realizing the generalization of the rear frame assembly 300.
The structure and the generalization method of the modular platform can realize the module generalization schemes of different platforms, thereby being beneficial to shortening the development period and reducing the development cost.
The invention provides an automobile comprising the automobile body structure according to any embodiment.
Based on the same inventive concept, the embodiments of the present application further provide a computer-readable storage medium, on which a computer program is stored, and the computer program, when executed by a processor, implements all or part of the method steps of the above method.
The present invention can implement all or part of the processes of the above methods, and can also be implemented by using a computer program to instruct related hardware, where the computer program can be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the above method embodiments can be implemented. Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer readable medium may include: any entity or device capable of carrying computer program code, recording medium, U.S. disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution media, and the like. It should be noted that the computer readable medium may contain other components which may be suitably increased or decreased as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, in accordance with legislation and patent practice, the computer readable medium does not include electrical carrier signals and telecommunications signals.
Based on the same inventive concept, an embodiment of the present application further provides an electronic device, which includes a memory and a processor, where the memory stores a computer program running on the processor, and the processor executes the computer program to implement all or part of the method steps in the method.
The Processor may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. The general purpose processor may be a microprocessor or the processor may be any conventional processor or the like, the processor being the control center of the computer device and the various interfaces and lines connecting the various parts of the overall computer device.
The memory may be used to store computer programs and/or modules, and the processor may implement various functions of the computer device by executing or executing the computer programs and/or modules stored in the memory, as well as by invoking data stored in the memory. The memory may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (e.g., a sound playing function, an image playing function, etc.); the storage data area may store data (e.g., audio data, video data, etc.) created according to the use of the cellular phone. In addition, the memory may include high speed random access memory, and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), at least one magnetic disk storage device, a Flash memory device, or other volatile solid state storage device.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, system, server, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, optical storage, and the like) having computer-usable program code embodied therein.
The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems), servers and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A vehicle body structure characterized by comprising:
the platform universal module comprises a front frame assembly, a front floor assembly and a rear frame assembly, wherein the front floor assembly is connected with one end of the front frame assembly;
the vehicle type universal module comprises a front overhang length adjusting assembly, a wheel base adjusting assembly and a rear overhang length adjusting assembly;
the front overhang length adjusting assembly comprises a front anti-collision beam assembly connected with the other end of the front frame assembly;
the wheel base adjusting component comprises a front floor rear section assembly which is connected with the front floor assembly and the rear frame assembly;
the rear overhang length adjusting component comprises a trunk floor assembly connected with the rear frame assembly, a rear longitudinal beam connected with the rear frame assembly and the trunk floor assembly, and a rear anti-collision beam assembly connected with the rear longitudinal beam.
2. The vehicle body structure of claim 1, wherein the length and width of the front frame assembly, the front floor assembly, and the rear frame assembly are constant values.
3. The vehicle body structure of claim 1, wherein said vehicle type common module further comprises a left side width adjustment assembly and a right side width adjustment assembly respectively disposed on both sides of said front floor assembly;
the left side width adjusting component comprises a left threshold beam connected with the front floor assembly and the front floor rear-section assembly, and a left A-pillar lower inner plate connected with the left threshold beam and the front frame assembly;
the right side width adjustment subassembly include with preceding floor assembly with the right threshold roof beam that preceding floor back end assembly is connected, and with right threshold roof beam with the lower back plate of right A post that preceding frame assembly is connected.
4. The vehicle body structure of claim 1, further comprising a powertrain mount coupled to the front frame assembly, the powertrain mount comprising a hybrid powertrain mount or an electric powertrain mount.
5. The vehicle body structure of claim 4, wherein the hybrid powertrain mounts include an engine mount coupled to the front frame assembly, a hybrid engine mount coupled to the front frame assembly, and a fuel tank mount coupled to the rear frame assembly.
6. The vehicle body structure of claim 4, wherein the electric powertrain mount comprises an electric motor suspension mount coupled to the front frame assembly.
7. The vehicle body structure of claim 1, further comprising a rear floor assembly connected to the rear frame assembly.
8. A modular vehicle body structure design method is characterized by comprising the following steps:
acquiring a platform boundary and a platform general module basic model;
acquiring a platform general module model according to the platform boundary and the platform general module basic model;
obtaining a vehicle type boundary and a vehicle type general module basic model;
acquiring a vehicle type universal module model according to the platform universal module model, the vehicle type boundary and the vehicle type universal module basic model;
and acquiring vehicle type structure data according to the platform general module model and the vehicle type general module model.
9. The modular vehicle body structure design method of claim 8, wherein the step of "obtaining vehicle type structure data from the platform generic module model and the vehicle type generic module model" comprises the steps of:
acquiring a power assembly support model;
and acquiring vehicle body structure data according to the vehicle type structure data and the power assembly support model.
10. An automobile, characterized by comprising a body structure according to any one of claims 1 to 7.
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| CN202110609700.0A CN113320594A (en) | 2021-06-01 | 2021-06-01 | Vehicle body structure, modular vehicle body structure design method and automobile |
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