A car platform

Abstract

The present invention provides an automobile platform, which belongs to the field of automobile design and manufacturing. The automobile platform provided by the present invention includes at least a platform body and an upper body detachably arranged above the platform body; the upper surface of the platform body is horizontal, and at least includes a front energy absorbing unit, a front driving unit, a riding unit, a rear driving unit and a rear energy absorbing unit that are detachably connected in sequence along the direction of the vehicle body. In this solution, the upper surface of the platform body is horizontal, which is convenient for fitting with the bottom of the upper body, and the upper and lower bodies are easily physically separated, thereby realizing the independent driving function of the automobile platform. The functional systems and functional components are all integrated and arranged on the platform body, which can not only achieve the purpose of decoupling the upper and lower bodies, but also realize the decoupling of the functional module areas.

Description

Technical Field

[0001] The present invention relates to the field of automobile design and manufacturing, and in particular to an automobile platform. Background Art

[0002] The monocoque is a type of automobile chassis structure, in which the body load is transmitted to the wheels through the suspension device. In addition to its inherent carrying function, this monocoque also directly bears the effects of various load forces. After decades of development and improvement, the monocoque has been greatly improved in terms of safety and stability. At present, most cars use this body structure.

[0003] However, the upper and lower bodies of existing load-bearing vehicles are welded and fixed. The upper body and the lower body are welded together as a whole to form the main body frame. The upper and lower bodies cannot be completely separated. The functional parts of the upper body and the lower platform are interconnected and affect each other. The upper and lower bodies are not easy to separate, which limits the independent driving function of the platform and does not achieve a true automobile platform structure.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] The present invention provides an automobile platform to solve the problem in the prior art that it is difficult to separate the upper and lower vehicle bodies and thus difficult for the platform to realize an independent driving function.

[0006] To solve the above problems, the present invention adopts the following solutions:

[0007] The present invention provides an automobile platform, which at least comprises a platform body and an upper vehicle body detachably arranged above the platform body;

[0008] The upper surface of the platform body is horizontal, and at least comprises a front energy absorbing unit, a front traveling unit, a riding unit, a rear traveling unit and a rear energy absorbing unit which are detachably connected in sequence along the direction of the vehicle body.

[0009] The automobile platform of the present invention includes a platform body and an upper body that are independent of each other. The upper surface of the platform body is horizontal, which is convenient for fitting with the bottom of the upper body, and the upper and lower bodies are easily physically separated, thereby realizing the independent driving function of the automobile platform. A front energy absorption unit, a front driving unit, a riding unit, a rear driving unit and a rear energy absorption unit are sequentially arranged on the platform body along the direction of the body. The functional systems and functional elements are all integrated and arranged on the platform body. The upper and lower bodies realize functional separation and can travel independently. The platform body forms five separate functional module areas, which can not only achieve the purpose of decoupling the upper and lower bodies, but also realize the decoupling of the functional module areas.

[0010] In other preferred embodiments, the front energy absorption unit includes at least a pair of front energy absorption modules symmetrically arranged on both sides of the vehicle body; the front driving unit includes at least a pair of front longitudinal beam modules symmetrically arranged on both sides of the vehicle body; the riding unit includes at least a pair of torsion modules symmetrically arranged on both sides of the vehicle body;

[0011] The front energy absorption module, the front longitudinal beam module and the torsion module on the same side of the vehicle body are screwed in sequence.

[0012] In this solution, the universal design of the front energy absorption unit and the rear energy absorption unit, the universal design of the front driving unit and the rear driving unit, and the universal design between functional module groups have improved the universality rate of automobile platform components, accelerated the vehicle development cycle, and reduced the vehicle development cost.

[0013] The front energy absorption unit includes at least a pair of front energy absorption modules symmetrically arranged on both sides of the vehicle body, which are used to absorb the energy and heat generated by the collision; the front energy absorption module, the front longitudinal beam and the torsion module on the same side of the vehicle body are screwed in sequence, and the flexible screw connection between different functional module areas makes it easier to expand the vehicle platform.

[0014] In other preferred embodiments, the front travel unit further includes a pair of front suspension systems symmetrically arranged on both sides of the vehicle body;

[0015] On the same side of the vehicle body, the front suspension system at least includes an upper swing arm and a shock absorber arranged along the direction of the vehicle body, and the connection point between the upper swing arm and the vehicle body is between the shock absorber and the torsion module.

[0016] The upper swing arm and shock absorber are arranged along the direction of the vehicle body. The connection point between the upper swing arm and the vehicle body is between the shock absorber and the torsion module. The lower end structure of the shock absorber is eliminated, the Z-direction utilization space of the suspension system is reduced, a low-position double wishbone independent suspension system is formed, and an ultra-low front longitudinal beam is achieved.

[0017] In other preferred embodiments, the riding unit comprises:

[0018] Battery pack structure; and

[0019] A pair of front torque boxes symmetrically arranged on both sides of the front of the battery pack structure;

[0020] A pair of rear torsion boxes are symmetrically arranged on both sides of the rear of the battery pack structure.

[0021] That is, torque boxes (front torque box and rear torque box) are symmetrically arranged at the left front / left rear and right front / right rear of the battery pack structure. By changing the torque box structure, the height of the battery pack structure can be adjusted, the overall vehicle posture can be changed, and the vehicle platform can be adapted to more vehicle models.

[0022] In other preferred embodiments, it also includes:

[0023] A connecting plate, which is arranged between a pair of the front torque boxes;

[0024] A front panel is arranged above the front torque box and the connecting plate, and an interface capable of installing a non-wire-controlled steering system is provided on the front panel.

[0025] Specifically, the vehicle platform also takes into account the design of the non-wired steering system. By changing the flexible torsion box structure and the structure of the torsion box connecting plate, and coordinating with the design of the vehicle body front panel, a hardware interface for the non-wired steering system is reserved on the front panel, thereby achieving a state of both wire control and non-wire control.

[0026] In other preferred embodiments, the front energy absorption unit at least includes a front anti-collision beam, and a pair of front energy absorption boxes symmetrically arranged on both sides of the front anti-collision beam;

[0027] The front anti-collision beam is an arc-shaped structure;

[0028] One end of the front energy absorption box is connected to the inner concave side of the anti-collision beam, and the other end is connected to the front longitudinal beam; when a collision occurs, the front anti-collision beam and the front energy absorption box are deformed to absorb energy to protect the front longitudinal beam.

[0029] In other preferred embodiments, the battery pack structure includes a housing frame, and a battery pack slot opened in the housing frame;

[0030] A battery pack body is placed in the battery pack slot, and a vehicle body floor capable of covering the battery pack slot is provided on the top of the shell frame.

[0031] The CTC battery pack shell frame and the vehicle body floor in this solution are integrated and preferably made of aluminum, which not only reduces the weight of the vehicle and reduces costs, but also increases the interior space.

[0032] In other preferred schemes, a pair of identical battery interfaces are opened at both ends of the shell frame; the pair of battery interfaces are electrically connected to the front end and the rear end of the battery pack respectively, the front and rear end interfaces of the battery pack are universally designed, and the shell frame is symmetrically designed.

[0033] In other preferred solutions, the battery pack is a rectangular tube-belt structure, and at least BDU, DCDC and OBC are arranged inside it, so as to be easily placed in the shell frame and optimize the indoor space.

[0034] In other preferred solutions, the housing frame includes a pair of first fixed frames symmetrically arranged at left and right sides, and a pair of second fixed frames symmetrically arranged at front and rear ends;

[0035] The first fixed frame is provided with a plurality of first mounting points connected with the vehicle body; the second fixed frame is provided with a plurality of second mounting points connected with the torsion box.

[0036] The installation points in this solution are universal for both the front and rear, left and right. When expanding different vehicle models, the battery pack can be rotated 180° front and back in the horizontal direction for arrangement according to the needs of the entire vehicle and the layout of the power system, and the installation points are fully matched with the vehicle body.

[0037] In other preferred solutions, the first fixed frame includes an upper frame and a lower frame formed in one piece, and the width of the lower frame is greater than the width of the upper frame;

[0038] The top of the upper frame is provided with a plurality of mounting points A for connecting with the threshold beam, and the top of the lower frame is provided with a plurality of mounting points B for connecting with the threshold inner plate.

[0039] The first fixed frame on both sides of the battery pack is a stepped structure, with 3 mounting points A on the left and right of the upper layer, which cooperate with the left and right door sill beams; and 5 mounting points B on the left and right of the lower layer, which cooperate with the inner panel of the door sill.

[0040] In other preferred solutions, the top of the upper frame is screwed to the threshold beam, and the lower frame is screwed to the threshold inner plate;

[0041] and / or;

[0042] The second fixing frame is screwed to the front torque box and the rear torque box, and the top of the front torque box is screwed to the front panel.

[0043] The use of flexible screw or bolt connections between different functional module areas makes it easier to expand the vehicle platform.

[0044] In other preferred embodiments, it also includes:

[0045] The heat dissipation device has two sides which are detachably connected to the inner sides of a pair of front energy absorption boxes respectively; and the heat dissipation device is detachably connected to a cooling device.

[0046] In other preferred solutions, the front energy absorption unit at least includes a front anti-collision beam, and a pair of front energy absorption boxes symmetrically arranged on both sides of the front anti-collision beam;

[0047] The front anti-collision beam is an arc-shaped structure;

[0048] One end of the front energy absorption box is connected to the concave side of the front anti-collision beam, and the other end is connected to the front longitudinal beam module.

[0049] In other preferred solutions, the front anti-collision beam and the front energy absorption box are welded and formed as one piece, and both are made by aluminum extrusion molding process;

[0050] The cross sections of the front anti-collision beam and the front energy absorption box are both rectangular structures.

[0051] The front anti-collision beam and the front energy absorption box in the front energy absorption unit are made of extruded aluminum technology with a square cross-section. They are welded as a whole to form the energy absorption unit at the front of the vehicle. The front energy absorption unit has sufficient energy absorption space. When the collision energy is transmitted from front to back, the front anti-collision beam and the front energy absorption box are deformed sufficiently to prevent damage to the integrally cast longitudinal beam and other components.

[0052] In other preferred solutions, in the X direction, the lengths of the front torsion box, the rear torsion box, the front energy absorption box and the rear energy absorption box are all adjustable;

[0053] and / or;

[0054] In the Z direction, the height of the front and rear torsion boxes is adjustable.

[0055] In other preferred solutions, the front suspension system includes at least an upper swing arm and a lower swing arm, and the lengths of the upper swing arm and the lower swing arm are adjustable.

[0056] The vehicle body can be realized in the X direction by changing the length of the front and rear energy absorption boxes and the torque boxes, in the Y direction by lengthening or shortening the length of the front and rear suspension arms, and in the Z direction by the differentiated design of the torque box structure. Through the expansion in the X, Y, and Z directions, the vehicle platform body 100 can adapt to different postures and different levels of vehicles.

[0057] In other preferred solutions, a sealing component is provided at the connection between the platform body and the upper vehicle body, and the sealing component can effectively play a role in waterproofing, dustproofing and the like.

[0058] In other preferred solutions, the heat dissipation device is a radiator;

[0059] The cooling device at least includes a condenser that is snap-fitted to the front end of the radiator, and a fan that is snap-fitted to the rear end of the radiator and can absorb air. The fan can absorb relatively cold air from the external environment into the cabin and cool the medium in the device through the condenser and the radiator.

[0060] In other preferred schemes, a mounting bracket is screwed on the inner side of the front energy absorption box, and the mounting bracket can fix vehicle body accessories. Cooling system accessories such as cooling water tanks and water pumps are concentrated in the inner area of ​​a pair of front energy absorption boxes, and the cabin components are arranged in blocks and groups, which is beautiful and flat.

[0061] In other preferred solutions, the front travel unit further includes a left suspension fixing bracket, a right suspension fixing bracket and a rear suspension fixing bracket; the front longitudinal beam module includes a left front longitudinal beam arranged on the left side of the vehicle body, and a right front longitudinal beam arranged on the right side of the vehicle body;

[0062] One end of the left suspension fixing bracket is screwed to the inner side of the left front longitudinal beam, and the other end is fixedly connected to the left suspension; one end of the right suspension fixing bracket is screwed to the inner side of the right front longitudinal beam, and the other end is fixedly connected to the right suspension;

[0063] Two ends of the rear suspension fixing bracket are respectively screwed to the inner side of the left front longitudinal beam and the inner side of the right front longitudinal beam, and the rear suspension is connected to the rear suspension fixing bracket.

[0064] In other preferred solutions, the rear suspension fixing bracket includes an integrally formed three-section cast aluminum bracket beam, and the rear suspension is fixedly mounted on the middle section of the cast aluminum bracket beam;

[0065] The front sides of both ends of the cast aluminum support beam are respectively screwed to the left front longitudinal beam and the right front longitudinal beam, and the rear sides of both ends of the cast aluminum support beam are respectively screwed to a pair of front torsion boxes.

[0066] In other preferred solutions, the left front longitudinal beam and the right front longitudinal beam are both provided with a transmission hole for the transmission shaft to pass through, and a steering hole for the steering rod to pass through.

[0067] In other preferred solutions, the upper swing arm and the lower swing arm are both double-wishbone structures including a front fork arm and a rear fork arm;

[0068] Among them, the front fork arm of the upper swing arm is fixedly connected to the front longitudinal beam, and the rear fork arm is fixedly connected to the front torque box; the front fork arm and the rear fork arm of the lower swing arm are both fixedly connected to the front longitudinal beam.

[0069] In other preferred solutions, one end of the shock absorber is fixed to the front longitudinal beam, and the other end is connected to the lower swing arm.

[0070] In this solution, the front and rear suspension systems are designed in a universal manner. The upper point of the shock absorber is installed on the integrated longitudinal beam and arranged in the X direction with the upper swing arm, making it have the characteristics of strong expandability and high flexibility. The posture of the whole vehicle can be adjusted by adjusting the stiffness and stroke of the shock absorber. In conjunction with the development of multiple models, the layout of the suspension greatly reduces the height of the vehicle platform. When developing the same model, the interior passengers will have more space.

[0071] In other preferred solutions, a lower cross beam is further provided between the pair of front torque boxes, and two ends of the lower cross beam are respectively screwed to the pair of front torque boxes.

[0072] In other preferred solutions, the rear travel unit further includes a pair of rear suspension systems and rear longitudinal beam modules symmetrically arranged on both sides of the vehicle body;

[0073] The rear suspension system and the rear longitudinal beam module can be obtained by rotating the front suspension system and the front longitudinal beam by 180 degrees in the horizontal direction and translating them respectively.

[0074] In other preferred schemes, the rear energy absorption unit includes at least a rear anti-collision beam and a pair of rear energy absorption boxes symmetrically arranged on both sides of the rear anti-collision beam; the rear anti-collision beam and the rear energy absorption box can be obtained by rotating the front anti-collision beam and the front energy absorption box 180° in the horizontal direction and translating them respectively.

[0075] The commonality rate between automobile platform modules is high. The anti-collision beams and energy absorption boxes in the front and rear energy absorption modules are common, the suspension system and integrated longitudinal beams in the front and rear driving modules are common, and the front and rear torsion boxes in the passenger unit are common. Increasing the commonality rate of parts and modules is one of the most effective ways to reduce development costs and improve manufacturing efficiency.

[0076] In other preferred solutions, the rear end of the rear energy absorption box is connected to the rear anti-collision beam, and the front end of the rear energy absorption unit is provided with an EDU cross beam;

[0077] A rear storage box is also arranged between the pair of rear energy absorption boxes; the two sides of the rear storage box are respectively screwed to the inner sides of the pair of rear energy absorption boxes, the front end of the rear storage box is screwed to the EDU cross beam, and the rear end of the rear storage box is screwed to the rear anti-collision beam.

[0078] In other preferred solutions, a plurality of pipe grooves are provided in the first fixed frame for integrated arrangement of motor cooling water pipes, air conditioning pipes, and brake pipes.

[0079] In other preferred solutions, the platform body is made of extruded aluminum or an integrated aluminum alloy material.

[0080] The automobile platform body mostly uses extruded aluminum, one-piece aluminum alloy and other process materials, which improves lightweight design and reduces the weight of the vehicle. While achieving complete separation of the upper and lower bodies, it can also reduce the weight of the vehicle, reduce development costs, achieve lightweight design, improve development and manufacturing efficiency, and shorten the development cycle.

[0081] Compared with the prior art, the present invention has the following beneficial effects:

[0082] The automobile platform provided in the present application includes a platform body and an upper body that are independent of each other. The upper surface of the platform body is horizontal, which is convenient for fitting with the bottom of the upper body, and the upper and lower bodies can be easily physically separated, thereby realizing the independent driving function of the automobile platform.

[0083] The front energy absorption unit, front driving unit, riding unit, rear driving unit and rear energy absorption unit are arranged in sequence on the platform body along the direction of the vehicle body. The functional systems and functional components are all integrated and arranged on the platform body. The upper and lower bodies are functionally separated and can travel independently. The platform body forms five separate functional module areas, which can not only achieve the purpose of decoupling the upper and lower bodies, but also achieve the decoupling of the functional module areas.

[0084] The automobile platform provided in this application has a flexible connection design between the modules of the platform and a high degree of versatility, which makes the platform highly expandable and capable of rapid iteration. Based on the automobile platform, a variety of cross-level models can be developed to form a series of products.

[0085] The automobile platform provided by the present application can integrate and develop automobile suspensions with strong expandability and high flexibility. The front and rear suspension systems are designed in a universal manner. The upper point of the shock absorber is installed on the integrated longitudinal beam and arranged in the X direction with the upper swing arm, so that it has the characteristics of strong expandability and high flexibility. The posture of the whole vehicle can be adjusted by adjusting the stiffness and stroke of the shock absorber. In conjunction with the development of multiple models, the layout of the suspension greatly reduces the height of the automobile platform. When developing the same model, the interior passengers will have more space to fully enjoy the car life and fun.

[0086] The automobile platform provided by the present application has a high rate of commonality between automobile platform modules. The anti-collision beams and energy absorption boxes in the front and rear energy absorption modules are common, the suspension systems and integrated longitudinal beams in the front and rear driving modules are common, and the front and rear torsion boxes in the passenger unit are common. Improving the commonality of parts and modules is one of the most effective ways to reduce development costs and improve manufacturing efficiency.

[0087] The automobile platform provided in this application can achieve complete separation of the upper and lower car bodies while reducing the weight of the entire vehicle, reducing development costs, achieving lightweight design, improving development and manufacturing efficiency, and shortening the development cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0088] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0089] Figure 1 A schematic diagram of the structure of a specific platform body described in this application;

[0090] Figure 2 This is a schematic structural diagram of a specific upper vehicle body described in this application;

[0091] Figure 3 A schematic diagram of the structure of a specific platform body described in this application;

[0092] Figure 4 This is a specific left side vehicle body connection diagram described in this application;

[0093] Figure 5 A schematic structural diagram of a specific left front suspension system described in this application;

[0094] Figure 6 This is a schematic structural diagram of a specific front longitudinal beam described in this application;

[0095] Figure 7 This is a structural schematic diagram of a specific riding unit described in this application;

[0096] Figure 8 This is a structural schematic diagram of a specific left front torque box described in this application;

[0097] Fig. 9 This is a schematic diagram of the structure of a specific front wall plate, a connecting plate and a front torque box according to the present application;

[0098] Fig.10 A side view of a specific battery pack structure described in this application;

[0099] Fig.11 A top view of a specific battery pack structure described in this application;

[0100] Fig.12 This is a schematic structural diagram of a specific front energy absorption unit described in this application;

[0101] Fig.13 A schematic diagram of the structure of a specific battery pack and an upper vehicle body according to the present application;

[0102] Fig.14 A schematic diagram of the structure of a specific battery pack and a torque box according to the present application;

[0103] Fig.15 This is a schematic diagram of a specific torsion box and upper vehicle body matching structure described in this application;

[0104] Fig.16 This is a schematic structural diagram of a specific front travel unit described in this application;

[0105] Fig.17 It is a partial structural schematic diagram of a specific front travel unit described in this application;

[0106] Fig.18 This is a structural schematic diagram of a specific rear travel unit described in this application;

[0107] Fig.19 A top view of a specific rear energy absorption unit described in the present application;

[0108] Fig. 20 A bottom view of a specific rear energy absorption unit described in the present application.

[0109] In the above drawings, the components represented by the reference numerals are listed as follows:

[0110] 100. platform body; 101. upper surface;

[0111] 110. front energy absorption unit; 111. front anti-collision beam; 112. front energy absorption box; 113. cooling device; 1131. fan;

[0112] 120, front travel unit; 121, front longitudinal beam module; 1211, left front longitudinal beam; 1212, right front longitudinal beam; 122, front suspension system; 1221, upper swing arm; 1222, shock absorber; 1223, lower swing arm; 123, left suspension; 124, right suspension; 125, rear suspension; 126, rear suspension beam; 1261, middle section; 1262, cast aluminum bracket A; 1263, cast aluminum bracket B; 127, transmission system; 128, steering rod;

[0113] 130, riding unit; 131, left front torque box; 132, right front torque box; 133, left rear torque box; 134, right rear torque box; 135, battery pack structure; 1350, battery pack body; 1351, shell frame; 1352, vehicle body floor; 1353, front end interface; 1354, rear end interface; 1355, motor cooling water inlet pipe; 1356, air conditioning pipe; 1357, air suspension vent pipe; 1358, motor cooling water outlet pipe; 1359, brake pipeline; 136, connecting plate;

[0114] 140, rear running unit; 141, rear longitudinal beam module; 1411, left rear longitudinal beam; 1412, right rear longitudinal beam; 142, rear suspension system;

[0115] 150, rear energy absorption unit; 151, rear anti-collision beam; 152, rear energy absorption box; 153, rear storage box; 154, EDU cross beam;

[0116] 200. Upper body; 201. Front panel; 202. Non-wire steering system; 203. Door sill beam; 204. Door sill inner panel. DETAILED DESCRIPTION

[0117] In order to make the above and other features and advantages of the present invention more clear, the present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explaining to those skilled in the art and are only exemplary and not restrictive.

[0118] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0119] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0120] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0121] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0122] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0123] Please refer to Figure 1-3 , showing an embodiment of the automobile platform provided by the present invention;

[0124] The automobile platform provided in this embodiment, the present invention provides an automobile platform, comprising at least a platform body 100, and an upper vehicle body 200 detachably arranged above the platform body 100;

[0125] The upper surface 101 of the platform body 100 is horizontal, and comprises at least a front energy absorbing unit 110, a front traveling unit 120, a riding unit 130, a rear traveling unit 140 and a rear energy absorbing unit 150 which are detachably connected in sequence along the vehicle body direction.

[0126] The automobile platform of the present invention comprises a platform body 100 and an upper body 200 which are independent of each other. The upper surface 101 of the platform body 100 is horizontal, so as to be easily fitted with the bottom of the upper body 200, and the upper and lower bodies can be easily physically separated, thereby realizing the independent driving function of the automobile platform.

[0127] Optionally, the automobile platform body 100 and the upper vehicle body 200 are fixed by screw connection and glue sealing to achieve physical separation of the upper and lower vehicle bodies. As the vehicle model changes, the automobile platform can be expanded and the upper vehicle body 200 can be switched freely.

[0128] The automobile platform body 100 has a flat upper surface 101. The upper surface 101 from the front of the platform to the rear of the platform is on the same horizontal plane. All functional systems and functional components are integrated and arranged in the lower part of the plane. The upper body 200 is arranged in the upper part of the plane. The upper surface 101 of the automobile platform body 100 is used as the boundary, and the upper and lower bodies are designed to be separated.

[0129] A front energy absorbing unit 110, a front driving unit 120, a riding unit 130, a rear driving unit 140 and a rear energy absorbing unit 150 are sequentially arranged on the platform body 100 along the direction of the vehicle body. All functional systems and functional elements are integrated on the platform body 100. The upper and lower bodies are functionally separated and can travel independently. The five unit interfaces are flexibly connected and the cross-level interface design can achieve the purpose of decoupling the functional module areas, enhance the scalability of the automobile platform, realize rapid iteration of products, and cover all levels of development models.

[0130] The platform body 100 forms five separate functional module areas, integrating all functional system components such as the power system, braking system, steering system, thermal management system and three-electric system to form independent functional areas, realizing functional separation of the upper and lower bodies, which can not only achieve the purpose of decoupling the upper and lower bodies, but also realize the decoupling of the functional module areas.

[0131] Furthermore, the front energy absorption unit 110 includes at least a pair of front energy absorption modules symmetrically arranged on both sides of the vehicle body; the front driving unit 120 includes at least a pair of front longitudinal beam modules symmetrically arranged on both sides of the vehicle body; the riding unit 130 includes at least a pair of torsion modules symmetrically arranged on both sides of the vehicle body;

[0132] Among them, the front energy absorption module, the front longitudinal beam module 121 and the torsion module on the same side of the vehicle body are screwed in sequence.

[0133] In this solution, the front energy absorbing unit 110 and the rear energy absorbing unit 150 are of universal design, the front driving unit 120 and the rear driving unit 140 are of universal design, and the functional module groups are of universal design, which improves the universality rate of automobile platform components, accelerates the vehicle development cycle, and reduces the vehicle development cost.

[0134] The front energy absorption unit 110 includes at least a pair of front energy absorption modules symmetrically arranged on both sides of the vehicle body, which are used to absorb the energy and heat generated by the collision; the front energy absorption module, the front longitudinal beam module 121 and the torsion module on the same side of the vehicle body are connected in sequence by bolts, and the flexible screw connection between different functional module areas makes it easier to expand the vehicle platform.

[0135] like Figure 4 and Figure 6 As shown, in a specific embodiment, the five units on the vehicle platform body 100 are fixedly connected in a screw connection. The left front energy absorption box 112 in the front energy absorption unit 110 is bolted to the left front longitudinal beam 1211 in the front driving unit 120; the left front longitudinal beam 1211 is bolted to the left front torque box 131 in the passenger unit 130. The fixing method on the right side is the same as that on the left side, and the fixing method on the rear end is the same as that on the front end. The flexible screw connection between the units makes it easier to expand the vehicle platform.

[0136] Furthermore, if Figure 5 As shown, the front travel unit 120 further includes a pair of front suspension systems 122 symmetrically arranged on both sides of the vehicle body;

[0137] The front suspension system 122 at least includes an upper swing arm 1221 and a shock absorber 1222 arranged along the vehicle body direction, and the connection point between the upper swing arm 1221 and the vehicle body is between the shock absorber 1222 and the torsion module.

[0138] The upper swing arm 1221 and the shock absorber 1222 in the front suspension system 122 are arranged front and rear in the X direction (body direction), and the connection point between the upper swing arm 1221 and the body is between the shock absorber 1222 and the torsion module. The conventional double wishbone suspension is that the shock absorber 1222 is between the two mounting points of the upper swing arm 1221, while the shock absorber 1222 and the upper swing arm 1221 in the present application are arranged in sequence along the body direction, in the order of: shock absorber 1222, upper swing arm 1221, torsion module, the lower end structure of the shock absorber 1222 is eliminated, the Z-direction utilization space of the suspension system is reduced, a low-position double wishbone independent suspension system is formed, and an ultra-low front longitudinal beam module 121 is realized. This design scheme can take into account the development of high and low posture models, increase the interior space of the whole vehicle, and improve the comfort brought to the occupants by the large space.

[0139] Furthermore, the upper swing arm 1221 and the lower swing arm 1223 are both double-wishbone structures including a front fork arm and a rear fork arm;

[0140] Among them, the front fork arm of the upper swing arm 1221 is fixedly connected to the front longitudinal beam module 121, and the rear fork arm is fixedly connected to the front torque box; the front fork arm and the rear fork arm of the lower swing arm 1223 are both fixedly connected to the front longitudinal beam module 121.

[0141] Furthermore, one end of the shock absorber 1222 is fixed to the front longitudinal beam module 121 , and the other end is connected to the lower swing arm 1223 .

[0142] In another embodiment, the suspension system includes an upper swing arm 1221, a lower swing arm 1223 and a shock absorber 1222, without a subframe. The upper swing arm 1221 is fixed at two points, the front point of the upper swing arm 1221 is fixed on the front longitudinal beam module 121, and the rear point of the upper swing arm 1221 is connected to the torsion module. The lower swing arm 1223 is fixed at two points, both fixed on the front longitudinal beam module 121. The upper point of the shock absorber 1222 is fixed on the front longitudinal beam module 121, and the lower point is connected to the lower swing arm 1223, which effectively shortens the length of the shock absorber 1222 and can adapt to the whole vehicle posture of more models.

[0143] It should be noted that in the present application, the front direction of the vehicle is taken as the front or front end, the body direction is taken as the X direction, the horizontal direction perpendicular to the body direction is taken as the Y direction, and the vertical direction is taken as the Z direction.

[0144] The front suspension system 122 and the rear suspension system 142 have a highly universal hardware design, which enables the front and rear suspensions to be interchangeable. The stiffness and travel of the shock absorber 1222 are adjusted to ensure the posture of the entire vehicle, while taking into account the design space of the coil spring and the air spring, so that the vehicle platform can adapt to more vehicle models.

[0145] The front driving unit 120 integrates an integrated front longitudinal beam module 121, which is developed by aluminum alloy casting technology and integrated with the subframe. The front longitudinal beam module 121 integrates the functions of traditional front longitudinal beams, subframes, shock absorber turrets and other components. The left front longitudinal beam 1211 and the right front longitudinal beam 1212 are symmetrically designed and have multiple mounting holes, which directly cooperate with the installation of components such as the motor system, steering system, suspension system, suspension system, drive system and electrical accessory system. The integrated integrated front longitudinal beam module 121 reduces the component fixing brackets of the automobile platform, and the honeycomb structure design also optimizes the weight of the entire vehicle, facilitating lightweight design.

[0146] Furthermore, the riding unit 130 includes:

[0147] Battery pack structure 135; and

[0148] A pair of front torque boxes symmetrically arranged on both sides of the front of the battery pack structure 135;

[0149] A pair of rear torsion boxes are symmetrically arranged on both sides of the rear of the battery pack structure 135.

[0150] like Figure 7 , Figure 8 , Fig.14 as well as Fig.15 As shown, torque boxes (left front torque box 131, right front torque box 132, left rear torque box 133 and right rear torque box 134) are symmetrically arranged at the left front / left rear and right front / right rear of the battery pack structure 135. By changing the torque box structure, the height of the battery pack structure 135 can be adjusted, the overall vehicle posture of the vehicle model can be changed, and the vehicle platform can be adapted to more vehicle models.

[0151] In a specific embodiment, the riding unit 130 includes a CTC battery pack structure 135. CTC stands for Cell To Chassis, which means that the battery is directly integrated into the chassis and the body, and four flexible torque boxes are designed at the front and rear ends of the CTC battery pack structure 135. The four torque boxes at the front left / left rear and the front right / right rear are symmetrically designed, and the four torque boxes at the front left / right front and the rear right / left rear are universally designed. The four torque boxes are fixed to the front and rear ends of the battery pack structure 135 by bolts. The torque boxes adopt cast aluminum technology and honeycomb structure to reduce the weight of components and reduce costs.

[0152] Furthermore, it also includes:

[0153] A connecting plate 136 disposed between a pair of front torque boxes, specifically between the left front torque box 131 and the right front torque box 132;

[0154] The dash panel 201 is disposed above the front torque box and the connecting plate 136 , and an interface for installing a non-wired steering system 202 is provided on the dash panel 201 .

[0155] Optionally, a lower cross beam is further provided between a pair of front torque boxes, and both ends of the lower cross beam are respectively screwed to the corresponding pair of front torque boxes. The lower cross beam is provided below the connecting plate 136. The connecting plate 136 is mainly used to isolate the lower vehicle body and the interior space, and the lower cross beam is mainly used to strengthen and fix the connection between the torque boxes.

[0156] Specifically, if Fig. 9 As shown, the vehicle platform also takes into account the design of the non-wire-controlled steering system 202. By changing the flexible torsion box structure and the structure of the torsion box connecting plate 136, and coordinating the design of the front panel 201, a hardware interface of the non-wire-controlled steering system 202 is reserved on the front panel 201, thereby achieving a state of taking both wire control and non-wire control into consideration.

[0157] In a specific embodiment, the automobile platform body 100 takes into account three steering functions at the same time. According to the vehicle model and layout space requirements, the rear wheel steering is flexible and can realize three modes: no steering, follow-up steering and four-wheel steering. When the rear wheels are not steering, ordinary EPS is used, and only the front wheels are steered; when the rear wheels are steered, a steering angle of 10 to 15° can be achieved, which improves the vehicle's passability and operational stability; when the four wheels are steered, the rear wheels can achieve a steering angle of 30 to 40°, which improves the vehicle's handling convenience at low speeds and improves the vehicle's operational stability at high speeds.

[0158] Furthermore, the battery pack structure 135 includes a housing frame 1351 and a battery pack slot opened in the housing frame 1351;

[0159] The battery pack body 1350 is placed in the battery pack slot, and a vehicle body floor 1352 capable of covering the battery pack slot is provided on the top of the housing frame 1351 .

[0160] The CTC battery pack housing frame 1351 and the vehicle body floor 1352 in this solution are developed in an integrated manner, preferably using aluminum material, which not only reduces the weight of the vehicle and reduces costs, but also increases the interior space.

[0161] Furthermore, a pair of identical battery interfaces are provided at both ends of the shell frame 1351; the pair of battery interfaces are electrically connected to the front and rear ends of the battery pack 1350 respectively, and the front and rear end interfaces of the battery pack are universally designed. The shell frame 1351 is symmetrically designed, and it can be regarded as setting the middle part of one end of the shell frame 1351 as a battery interface, which is connected to the high-voltage wiring harness in the battery pack 1350.

[0162] Furthermore, the battery pack 1350 is a rectangular tube belt structure, and at least a BDU (battery energy distribution unit), a DCDC (direct current to direct current converter) and an OBC (on-board charger) are arranged inside it, so that it can be placed in the shell frame 1351 to optimize the indoor space.

[0163] like Fig.10 As shown, the CTC battery pack structure 135 shell frame 1351 and the body floor 1352 adopted by the automobile platform body 100 are integrated and developed. The frame and the floor are made of aluminum materials. The purpose is to reduce the weight of the battery pack structure 135, reduce costs, optimize the component structure and increase the indoor riding space. The battery pack structure 135 integrates BDU, DCDC and OBC, etc., which are arranged at the rear end of the battery pack structure 135. The front and rear end interfaces of the battery pack structure 135 are universally designed; the shell frame 1351 is symmetrically designed, and the installation points on the shell frame 1351 are universal in front and back and left and right. When expanding different models, according to the needs of the whole vehicle and the layout of the power system, the battery pack structure 135 can be arranged by rotating 180° in the horizontal direction, and the installation points are completely matched with the body.

[0164] Further, the front energy absorption unit 110 at least includes a front anti-collision beam 111 and a pair of front energy absorption boxes 112 symmetrically arranged on both sides of the front anti-collision beam 111;

[0165] The front anti-collision beam 111 is an arc-shaped structure;

[0166] One end of the front energy absorption box 112 is connected to the concave side of the front anti-collision beam 111 , and the other end is connected to the front longitudinal beam module 121 ; during a collision, the front anti-collision beam 111 and the front energy absorption box 112 deform to absorb energy to protect the front longitudinal beam module 121 .

[0167] like Fig.12 As shown, the front anti-collision beam 111 and the front energy absorption box 112 in the front energy absorption unit 110 are both made of extruded aluminum, with a square cross-section, and are integrally welded to form an energy absorption unit at the front of the vehicle. The front energy absorption unit 110 has sufficient energy absorption space. When the collision energy is transmitted from front to rear, the front anti-collision beam 111 and the front energy absorption box 112 are sufficiently deformed to prevent damage to the front longitudinal beam module 121 and other components integrally cast with the front energy absorption box 112.

[0168] Further, in the X direction along the vehicle body, the lengths of the front torsion box, the rear torsion box, the front energy absorption box 112 and the rear energy absorption box 152 are all adjustable;

[0169] and / or;

[0170] In the Z direction, the height of the front and rear torsion boxes is adjustable.

[0171] Furthermore, the front suspension system 122 at least includes an upper swing arm 1221 and a lower swing arm 1223 , and the lengths of the upper swing arm 1221 and the lower swing arm 1223 are adjustable.

[0172] Optionally, the rear suspension system 142 is of universal design with the front suspension system 122, and the rear suspension system 142 also includes an upper swing arm 1221 and a lower swing arm 1223 with adjustable lengths. It should be noted that the bandwidth design of the automobile platform body 100 covers all levels of vehicle models. In order to ensure compatibility with more vehicle models, the interface of the automobile platform body 100 is of flexible design and has strong scalability. In the X direction, it can be achieved by changing the length of the front energy absorption box 112, the rear energy absorption box 152, and the torsion box. In the Y direction, it can be achieved by lengthening or shortening the length of the front and rear suspension swing arms. In the Z direction, it can be achieved through the differentiated design of the torsion box structure. Through the expansion in the X, Y, and Z directions, the automobile platform body 100 can adapt to different postures and different levels of vehicle models.

[0173] Furthermore, it also includes: a heat dissipation device, two sides of which are detachably connected to the inner sides of a pair of front energy absorption boxes 112; and a cooling device 113 is detachably connected to the heat dissipation device.

[0174] like Fig.12 As shown, the heat dissipation device is a radiator, and its two sides are detachably connected to the inner sides of a pair of front energy absorption boxes 112 respectively; a cooling device 113 is detachably connected to the heat dissipation device, and the cooling device 113 at least includes a condenser snap-fitted to the front end of the radiator, and a fan 1131 snap-fitted to the rear end of the radiator and capable of sucking air.

[0175] The radiator, condenser and fan 1131 are centrally arranged in the area formed by a pair of front energy absorption boxes 112. The cabin components are arranged in blocks and groups in a beautiful and flat manner. The fan 1131 can draw relatively cold air from the external environment into the cabin, and cool the medium in the device through the condenser and radiator.

[0176] The front energy absorption unit 110 integrates the vehicle cooling system. The condenser and fan 1131 are integrated into the radiator by snap-fitting. The radiator is fixed to the inner side of the left and right front energy absorption boxes 112 by screwing. The cooling water tank, water pump and other cooling system accessories are concentrated in this area. The cabin parts are arranged in blocks and groups to be beautiful and flat. The front energy absorption unit 110 also includes some accessories, such as water pumps, air conditioning compressors, gas-liquid separators, etc., which are screwed to the front energy absorption box 112 through mounting brackets.

[0177] Furthermore, the battery pack structure 135 is a rectangular tube belt structure, and the shell frame 1351 includes a pair of first fixed frames symmetrically arranged on the left and right sides, and a pair of second fixed frames symmetrically arranged on the front and rear ends; the first fixed frame is provided with a plurality of first mounting points connected to the vehicle body; the second fixed frame is provided with a plurality of second mounting points connected to the torque box.

[0178] like Fig.11 As shown, the first mounting points of the first fixed frames on both sides of the battery pack structure 135 are used to cooperate with the left and right sill beams 203 and the sill inner plate 204, and the second mounting points of the second fixed frames at the front and rear of the battery pack structure 135 are respectively cooperated with the front and rear torsion boxes. The front end interface 1353 and the rear end interface 1354 of the battery pack structure 135 are of universal design, and the front end interface 1353 and the rear end interface 1354 are respectively electrically connected to the high voltage wire harness in the battery pack body 1350.

[0179] Further, the first fixed frame includes an upper frame and a lower frame formed in one piece, and the width of the lower frame is greater than the width of the upper frame;

[0180] The top of the upper frame is provided with a plurality of mounting points A for connecting with the threshold beam 203 , and the top of the lower frame is provided with a plurality of mounting points B for connecting with the threshold inner plate 204 .

[0181] like Fig.13 As shown, in a specific embodiment, the first fixed frame on both sides of the battery pack structure 135 is a stepped structure, with 3 mounting points A on the left and right of the upper layer, cooperating with the left and right door sill beams 203; 5 mounting points B on the left and right of the lower layer, cooperating with the door sill inner plate 204, and 8 second mounting points on the front and rear of the battery pack structure 135, respectively cooperating with the front and rear torque boxes.

[0182] Furthermore, a sealing component is provided at the connection between the platform body 100 and the upper vehicle body 200, and the sealing component can effectively play a role in waterproofing and dustproofing.

[0183] In a specific embodiment, the automobile platform body 100 and the upper body 200 are fixed by screw connection and glue sealing to achieve physical separation of the upper and lower bodies. As the vehicle model changes, the automobile platform body 100 can be expanded and the upper body 200 can be switched freely.

[0184] like Figure 16-18 As shown, in another embodiment, the front travel unit 120 module group includes a power system, a steering system, a braking system, a suspension system, a suspension system, a transmission system 127 and an integrated front longitudinal beam module 121. The power system is fixed by three-point suspension. The left suspension 123 and the right suspension 124 are respectively screwed and fixed to the left front longitudinal beam 1211 and the right front longitudinal beam 1212 through the left suspension fixing bracket and the right suspension fixing bracket. The rear suspension beam 126 (rear suspension fixing bracket) is a cast aluminum bracket beam with a three-section structure. The cast aluminum process is adopted. The middle section 1261 is installed with the rear suspension 125, and is welded with the cast aluminum bracket A1262 and the cast aluminum bracket B1263 at both ends to form an integral rear suspension mounting beam. The cast aluminum bracket A1262 and the cast aluminum bracket B1263 have 4 mounting points on the left and right sides respectively. The first two mounting points are screwed to the left front longitudinal beam 1211 and the right front longitudinal beam 1212, and the last two mounting points are connected to the left front torque box 131 and the right front torque box 132.

[0185] The rear travel unit 140 is of universal design with the front travel unit 120, wherein the integrated front longitudinal beam 121 is symmetrical and universal, and is matched with the steering system (four-wheel steering), the transmission system 127 (four-wheel drive design), the suspension system (four-wheel drive design), the suspension system, etc. The structures of the front suspension system 122 and the rear suspension system 142 are also of universal design, and can be installed by rotating 180° in the horizontal direction, and the posture of the whole vehicle is achieved by adjusting the stiffness and travel of the shock absorber 1222.

[0186] The fixed end of the transmission system 127 is connected to the power assembly. The left front longitudinal beam 1211 and the right front longitudinal beam 1212 are provided with transmission holes for the transmission shaft to pass through, and the holes are opened to avoid the motion envelope of the transmission shaft. The left front longitudinal beam 1211 and the right front longitudinal beam 1212 are also provided with steering holes for the steering rod 128 to pass through. The steering system is screwed to the front longitudinal beam module 121 at two points on the left and right. The holes on the left front longitudinal beam 1211 and the right front longitudinal beam 1212 are opened to avoid the motion envelope of the steering rod 128.

[0187] Furthermore, the rear travel unit 140 also includes a pair of rear suspension systems 142 and rear longitudinal beam modules 141 symmetrically arranged on both sides of the vehicle body, and the rear longitudinal beam module 141 includes a left rear longitudinal beam 1411 and a right rear longitudinal beam 1412; the rear suspension system 142 and the rear longitudinal beam module 141 can be obtained by rotating the front suspension system 122 and the front longitudinal beam module 121 by 180° in the horizontal direction and translating them respectively.

[0188] Furthermore, the rear energy absorption unit 150 includes at least a rear anti-collision beam 151 and a pair of rear energy absorption boxes 152 symmetrically arranged on both sides of the rear anti-collision beam 151; the rear anti-collision beam 151 and the rear energy absorption box 152 can be obtained by rotating the front anti-collision beam 111 and the front energy absorption box 112 180° in the horizontal direction and translating them respectively.

[0189] The rear end of the rear energy absorption box 152 is connected to the rear anti-collision beam 151, and the front end of the rear energy absorption unit 150 is provided with an EDU crossbeam 154, where EDU refers to an electric drive unit of a motor and a controller or a motor built into a variable box;

[0190] A rear storage box 153 is also provided between the pair of rear energy absorption boxes 152; the two sides of the rear storage box 153 are respectively screwed to the inner sides of the pair of rear energy absorption boxes 152, the front end of the rear storage box 153 is screwed to the EDU cross beam 154, and the rear end of the rear storage box 153 is screwed to the rear anti-collision beam 151.

[0191] Furthermore, the platform body 100 is made of extruded aluminum or an integrated aluminum alloy material.

[0192] In a specific embodiment, Fig.19 and Fig. 20 As shown, the rear energy absorption unit 150 includes an energy absorption unit composed of a rear anti-collision beam 151 and a rear energy absorption box 152, and a rear storage box 153. The rear energy absorption unit 150 is of universal design with the front energy absorption unit 110, and the rear storage box 153 is fixedly connected to the rear anti-collision beam 151 and the rear energy absorption box 152 by screws, with the left and right side ends fixed to the rear energy absorption box 152, the front end fixed to the EDU cross beam 154, and the rear end fixedly connected to the rear anti-collision beam 151. The rear anti-collision beam 151 is of flexible structural design to meet the requirements of different shapes and rear overhang size changes.

[0193] like Fig.13 As shown, the aluminum profile shell frame 1351 (first fixed frame and second fixed frame) of the CTC battery pack structure 135 in this solution has a symmetrical design of the left and right profiles, and the interior of the profile is designed to be honeycomb-shaped, with multiple pipe grooves, which reduces the weight of the battery pack structure 135 while integrating the motor cooling water pipe, air conditioning pipe 1356 and brake pipe 1359. In the first fixed frame on the right, the rear motor cooling water inlet pipe 1355 and air conditioning pipe 1356 are pre-buried in the profile, and the air suspension vent pipe 1357 is directly cast into a tubular shape and integrated with the frame; in the first fixed frame on the left, the rear motor cooling water outlet pipe 1358 is pre-buried in the profile, and the brake pipe 1359 is directly cast into a tubular shape and integrated with the first fixed frame.

[0194] The vehicle platform is not only applicable to pure electric vehicles, but also to fuel vehicles, fuel vehicles or other models. The main purpose of designing a vehicle platform is to form a highly functional regional module group, minimize the number of vehicle parts, solidify the structure of functional system parts, and simplify the vehicle design. If other power models are installed, the vehicle platform needs to be adaptively adjusted and changed to cooperate with the development of the vehicle.

[0195] The automobile platform provided in the present application includes a platform body 100 and an upper body 200 which are independent of each other. The upper surface 101 of the platform body 100 is horizontal, so as to be easily fitted with the bottom of the upper body 200, and the upper and lower bodies can be easily physically separated, thereby realizing the independent driving function of the automobile platform.

[0196] The front energy absorbing unit 110, the front driving unit 120, the riding unit 130, the rear driving unit 140 and the rear energy absorbing unit 150 are arranged in sequence on the platform body 100 along the vehicle body direction. The functional systems and functional elements are all integrated and arranged on the platform body 100. The upper and lower vehicle bodies are functionally separated and can travel independently. The platform body 100 forms five separate functional module areas, which can not only achieve the purpose of decoupling the upper and lower vehicle bodies, but also achieve the decoupling of the functional module areas.

[0197] The present application develops a vehicle platform with a load-bearing structure, in which the upper and lower vehicle bodies are fixed by screw connection and the optimal lightweight design of the entire vehicle is taken into consideration, thereby achieving physical separation of the upper and lower vehicle bodies.

[0198] This application designs and develops a highly functional module group for the automobile platform. The module groups are flexibly connected and highly universal, which enhances the platform's expansibility, enables rapid product iteration, and makes the automobile platform applicable to more cross-level models. The automobile platform provided by this application can integrate and develop automobile suspensions with strong expansibility and high flexibility. By adjusting the elastic elements of the suspension, the height of the automobile platform can be lowered, allowing passengers to have more space and fully enjoy the life and fun of the car.

[0199] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An automobile platform, characterized in that: At least comprises a platform body and an upper vehicle body detachably arranged above the platform body; The upper surface of the platform body is horizontal, and at least comprises a front energy absorbing unit, a front running unit, a riding unit, a rear running unit and a rear energy absorbing unit which are sequentially detachably connected along the vehicle body direction; The front energy absorption unit comprises at least a pair of front energy absorption modules symmetrically arranged on both sides of the vehicle body; the front driving unit comprises at least a pair of front longitudinal beam modules symmetrically arranged on both sides of the vehicle body; the riding unit comprises at least a pair of torsion modules symmetrically arranged on both sides of the vehicle body; wherein the front energy absorption module, the front longitudinal beam module and the torsion module on the same side of the vehicle body are screwed in sequence; The front travel unit further comprises a pair of front suspension systems symmetrically arranged on both sides of the vehicle body; on the same side of the vehicle body, the front suspension system at least comprises an upper swing arm and a shock absorber arranged along the direction of the vehicle body, and the connection point between the upper swing arm and the vehicle body is between the shock absorber and the torsion module; The riding unit comprises: a battery pack structure; and a torsion module, the torsion module comprising a front torsion box symmetrically arranged on both sides of the front of the battery pack structure and a pair of rear torsion boxes symmetrically arranged on both sides of the rear of the battery pack structure; the front torsion box and the rear torsion box have the same structure and are both screwed to the battery pack structure; The front suspension system at least comprises an upper swing arm and a lower swing arm, and the lengths of the upper swing arm and the lower swing arm are adjustable; The upper swing arm and the lower swing arm are both double-wishbone structures including a front fork arm and a rear fork arm; wherein the front fork arm of the upper swing arm is fixedly connected to the front longitudinal beam module, and the rear fork arm is fixedly connected to the front torque box; the front fork arm and the rear fork arm of the lower swing arm are both fixedly connected to the front longitudinal beam module; One end of the shock absorber is fixed to the front longitudinal beam module, and the other end is connected to the lower swing arm; The rear travel unit further comprises a pair of rear suspension systems and rear longitudinal beam modules symmetrically arranged on both sides of the vehicle body; the rear suspension system and the rear longitudinal beam module can be obtained by rotating the front suspension system and the front longitudinal beam module 180 degrees in the horizontal direction and translating them respectively; The automobile platform further includes: a connecting plate, which is arranged between a pair of the front torque boxes; a front panel, which is arranged above the front torque box and the connecting plate, and an interface capable of installing a non-wire control steering system is opened on the front panel; The battery pack structure includes a housing frame and a battery pack slot provided in the housing frame; a battery pack body is placed in the battery pack slot, and a vehicle body floor capable of covering the battery pack slot is provided on the top of the housing frame; The housing frame includes a pair of first fixing frames symmetrically arranged at left and right sides, and a pair of second fixing frames symmetrically arranged at front and rear ends; the first fixing frames are provided with a plurality of first mounting points connected to the vehicle body; the second fixing frames are provided with a plurality of second mounting points connected to the torque box; The first fixed frame includes an upper frame and a lower frame formed in one piece, and the width of the lower frame is greater than the width of the upper frame; wherein the top of the upper frame is provided with a plurality of mounting points A for connecting with the threshold beam, and the lower frame is provided with a plurality of mounting points B for connecting with the threshold inner plate; The top of the upper frame is screwed to the threshold beam, and the lower frame is screwed to the threshold inner plate; and / or; The second fixing frame is screwed to the front torque box and the rear torque box, and the top of the front torque box is screwed to the front panel.

2. The vehicle platform according to claim 1, characterized in that: A pair of identical battery interfaces are provided at both ends of the shell frame; the pair of battery interfaces are electrically connected to the front end and the rear end of the battery package respectively.

3. The vehicle platform according to claim 2, characterized in that: The battery pack is a rectangular tube-belt structure, and at least a BDU, a DCDC and an OBC are arranged inside the battery pack.

4. The vehicle platform according to claim 1, characterized in that: Also includes: The heat dissipation device has two sides which are detachably connected to the inner sides of a pair of front energy absorption boxes respectively; and the heat dissipation device is detachably connected to a cooling device.

5. The automobile platform according to any one of claims 1 to 3, characterized in that: The front energy absorption unit at least includes a front anti-collision beam, and a pair of front energy absorption boxes symmetrically arranged on both sides of the front anti-collision beam; The front anti-collision beam is an arc-shaped structure; One end of the front energy absorption box is connected to the concave side of the front anti-collision beam, and the other end is connected to the front longitudinal beam module.

6. The vehicle platform according to claim 5, characterized in that: The front anti-collision beam and the front energy absorption box are welded and formed as one piece, and both are made by aluminum extrusion molding process; The cross sections of the front anti-collision beam and the front energy absorption box are both rectangular structures.

7. The automobile platform according to any one of claims 1 to 3, characterized in that: In the X direction, the lengths of the front torque box, rear torque box, front energy absorption box and rear energy absorption box are all adjustable; and / or; In the Z direction, the height of the front and rear torsion boxes is adjustable.

8. The vehicle platform according to claim 1, characterized in that: A sealing component is provided at the connection between the platform body and the upper vehicle body.

9. The vehicle platform according to claim 4, characterized in that: The heat dissipation device is a radiator; The cooling device at least comprises a condenser which is clamped and arranged at the front end of the radiator, and a fan which is clamped and arranged at the rear end of the radiator and can absorb air.

10. The vehicle platform according to claim 9, characterized in that: The inner side of the front energy absorption box is threadedly provided with a mounting bracket, and the mounting bracket can fix vehicle body accessories.

11. The vehicle platform according to claim 1, characterized in that: The front travel unit further includes a left suspension fixing bracket, a right suspension fixing bracket and a rear suspension fixing bracket; the front longitudinal beam module includes a left front longitudinal beam arranged on the left side of the vehicle body, and a right front longitudinal beam arranged on the right side of the vehicle body; One end of the left suspension fixing bracket is screwed to the inner side of the left front longitudinal beam, and the other end is fixedly connected to the left suspension; One end of the right suspension fixing bracket is screwed to the inner side of the right front longitudinal beam, and the other end is fixedly connected to the right suspension; Two ends of the rear suspension fixing bracket are respectively screwed to the inner side of the left front longitudinal beam and the inner side of the right front longitudinal beam, and the rear suspension is connected to the rear suspension fixing bracket.

12. The vehicle platform according to claim 11, characterized in that: The rear suspension fixing bracket comprises an integrally formed three-section cast aluminum bracket beam, and the rear suspension is fixedly mounted on the middle section of the cast aluminum bracket beam; The front sides of both ends of the cast aluminum support beam are respectively screwed to the left front longitudinal beam and the right front longitudinal beam, and the rear sides of both ends of the cast aluminum support beam are respectively screwed to a pair of front torsion boxes.

13. The vehicle platform according to claim 11, characterized in that: The left front longitudinal beam and the right front longitudinal beam are both provided with a transmission hole for the transmission shaft to pass through, and a steering hole for the steering rod to pass through.

14. The vehicle platform according to claim 5, characterized in that: The rear energy absorption unit at least includes a rear anti-collision beam and a pair of rear energy absorption boxes symmetrically arranged on both sides of the rear anti-collision beam; the rear anti-collision beam and the rear energy absorption box can be obtained by rotating the front anti-collision beam and the front energy absorption box 180° in the horizontal direction and translating them respectively.

15. The vehicle platform according to claim 14, characterized in that: The rear end of the rear energy absorption box is connected to the rear anti-collision beam, and the front end of the rear energy absorption unit is provided with an EDU cross beam; A rear storage box is also arranged between the pair of rear energy absorption boxes; the two sides of the rear storage box are respectively screwed to the inner sides of the pair of rear energy absorption boxes, the front end of the rear storage box is screwed to the EDU cross beam, and the rear end of the rear storage box is screwed to the rear anti-collision beam.

16. The vehicle platform according to claim 1, characterized in that: A plurality of pipe grooves are provided in the first fixing frame.

17. The automobile platform according to any one of claims 8 to 16, characterized in that: The platform body is made of extruded aluminum or an integrated aluminum alloy material.

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