Method of assembling a travel module

Abstract

This application provides a method for assembling a driving module, belonging to the field of vehicle assembly. The assembly method includes the following steps: mounting a longitudinal beam on a flexible body section assembly; mounting a crash beam assembly on the longitudinal beam; mounting a motor mount on the longitudinal beam; mounting a rear suspension crossbeam assembly diagonally below the longitudinal beam, wherein the motor mount and the rear suspension crossbeam assembly are spaced apart along the X-direction; connecting the motor assembly to both the motor mount and the rear suspension crossbeam assembly; mounting the suspension system on the longitudinal beam and connecting it to the rear suspension crossbeam assembly; passing a drive shaft assembly through a hole in the middle of the longitudinal beam and connecting its two ends to the motor assembly and the suspension system respectively; and mounting the wheel assembly on the suspension system. This method solves the technical problems in the prior art where the upper control arm assembly, lower control arm assembly, and strut assembly of the suspension system all need to be mounted on the subframe and turret structure, resulting in a large number of parts, a long assembly dimension chain, large installation tolerances, and increased costs.

Description

Technical Field

[0001] This application relates to the field of vehicle assembly, and in particular to a method for assembling a driving module. Background Technology

[0002] New energy vehicles refer to automobiles that use unconventional vehicle fuels as their power source (or use conventional vehicle fuels but employ new onboard power devices), integrating advanced technologies in vehicle power control and drive, resulting in vehicles with advanced technical principles and new technologies and structures. Among these, the corresponding driving module, which ensures the stability and safety of the vehicle during operation, is particularly important.

[0003] In order to install the driving module on new energy vehicles, the existing technology often requires the upper control arm assembly, lower control arm assembly, and sliding column assembly to be installed on the subframe and turret structure. Separate tooling is required for their installation and coordination. Finally, the subframe and the body longitudinal beams are connected to realize the installation of the driving module.

[0004] However, in the existing technology, the upper control arm assembly, lower control arm assembly, and sliding column all need to be installed on the subframe and turret structure. This results in a large number of parts, an increased assembly dimension chain, larger installation tolerances, and a large variety and number of auxiliary tooling, which leads to complex assembly and high costs.

[0005] Therefore, this application is hereby submitted. Summary of the Invention

[0006] This application provides a method for assembling a driving module, which solves the technical problems in the prior art where the upper control arm assembly, lower control arm assembly, and sliding column all need to be mounted on the subframe and turret structure. This results in a large number of parts, a long assembly dimension chain, large installation tolerances, and a large variety and number of auxiliary tooling, leading to complex assembly and high consumption costs.

[0007] This application provides a method for assembling a driving module, which includes: a flexible body section assembly, a longitudinal beam, a crash beam assembly, a motor mount, a rear suspension crossbeam assembly, a motor assembly, a suspension system, a drive shaft assembly, and a wheel assembly. A through hole is provided in the middle of the longitudinal beam. The assembly method includes the following steps: mounting the longitudinal beam onto the flexible body section assembly; mounting the crash beam assembly onto the longitudinal beam; mounting the motor mount onto the longitudinal beam; mounting the rear suspension crossbeam assembly below the connection between the longitudinal beam and the flexible body section assembly, wherein the motor mount and the rear suspension crossbeam assembly are spaced apart along the X-direction; connecting the motor assembly to both the motor mount and the rear suspension crossbeam assembly; mounting the suspension system onto the longitudinal beam and connecting it to the rear suspension crossbeam assembly; passing the drive shaft assembly through the through hole in the longitudinal beam and connecting its two ends to the motor assembly and the suspension system, respectively; and mounting the wheel assembly onto the suspension system.

[0008] Optionally, there are two longitudinal beams. The flexible body section assembly includes two integrally formed torsion box assemblies and a mounting crossbeam. The two torsion box assemblies are respectively connected to two opposite side walls at both ends of the mounting crossbeam. A first groove is provided on the torsion box assembly. The two torsion box assemblies are spaced apart along the Y direction. The installation of the longitudinal beams on the flexible body section assembly includes: using the first grooves to install the longitudinal beams on the torsion box assemblies. The longitudinal beams correspond one-to-one with the torsion box assemblies.

[0009] Optionally, there are two longitudinal beams. The anti-collision beam assembly includes two energy-absorbing boxes and an anti-collision beam. The energy-absorbing boxes are provided with a second groove. The process of installing the anti-collision beam assembly on the longitudinal beam includes: using the second groove to install the anti-collision beam onto the two energy-absorbing boxes; and installing the energy-absorbing boxes onto the longitudinal beam, wherein the energy-absorbing boxes correspond one-to-one with the longitudinal beams.

[0010] Optionally, there are two longitudinal beams, and the motor mount includes a first mount and a second mount; wherein, mounting the motor mount on the inner wall of the longitudinal beam includes: mounting the first mount on the inner wall of one of the longitudinal beams; and mounting the second mount on the inner wall of the other longitudinal beam; wherein the first mount and the second mount are configured correspondingly.

[0011] Optionally, the rear suspension crossbeam assembly includes: a stabilizer bar assembly, a steering gear assembly, and a rear suspension crossbeam assembly; wherein, installing the rear suspension crossbeam assembly below the connection between the longitudinal beam and the body flexible section assembly includes: placing the stabilizer bar assembly on one side of the longitudinal beam through-hole and connecting it to the rear suspension crossbeam assembly; installing the steering gear assembly on top of the rear suspension crossbeam assembly; installing the rear suspension crossbeam assembly below the connection between the longitudinal beam and the body flexible section assembly; and connecting the motor assembly to the motor mount and the rear suspension crossbeam assembly respectively, including: connecting the motor assembly to the motor mount and the rear suspension crossbeam assembly respectively.

[0012] Optionally, the suspension system includes: a brake angle assembly, an upper control arm assembly, a lower control arm assembly, and a strut assembly; wherein, mounting the suspension system on the outer wall of the longitudinal beam and connecting it to the rear suspension crossbeam assembly includes: mounting the strut assembly on the longitudinal beam and connecting it to the lower control arm assembly; mounting the upper control arm assembly on the longitudinal beam and connecting it to the brake angle assembly; and connecting the lower control arm assembly to the longitudinal beam, the brake angle assembly, and the stabilizer bar assembly.

[0013] Optionally, the brake angle assembly includes: a steering knuckle assembly, a brake disc mudguard, a wheel hub bearing assembly, a brake disc, and a brake caliper assembly; wherein, mounting the upper control arm assembly on the longitudinal beam and connecting it to the brake angle assembly includes: mounting the brake disc mudguard on the inner side of the wheel hub bearing assembly; connecting the wheel hub bearing assembly to the steering knuckle assembly so that the steering knuckle assembly and the brake disc mudguard are in contact; mounting the brake disc on the wheel hub bearing assembly; mounting the brake caliper assembly on the steering knuckle assembly; mounting the upper control arm assembly on the longitudinal beam and connecting it to the steering knuckle assembly; mounting the wheel assembly on the suspension system includes: mounting the wheel assembly on the outer side of the brake disc of the wheel hub bearing assembly.

[0014] Optionally, the steering knuckle assembly includes: a steering knuckle body, an upper ball joint pin assembly, and a lower ball joint pin assembly; a first through hole is provided in the middle of the steering knuckle body, and a second through hole and a third through hole are provided at the top and bottom, respectively; wherein, the second and third through holes protrude to the sides, and a fourth and a fifth through hole are arranged thereon; wherein connecting the wheel hub bearing assembly to the steering knuckle assembly so that the steering knuckle assembly fits against the brake disc mudguard includes: pressing the upper ball joint pin assembly into the second through hole from top to bottom; wherein, the bottom of the upper ball joint pin assembly does not protrude from the second through hole; pressing the lower ball joint pin assembly into the second through hole from top to bottom. The lower ball joint assembly is located within the third through hole; the bottom of the lower ball joint assembly does not protrude from the third through hole; corresponding bolts are passed through the fourth and fifth through holes respectively and connected to the corresponding nuts to respectively tighten the upper ball joint assembly and the steering knuckle body and the lower ball joint assembly and the steering knuckle body; the wheel hub bearing assembly is connected to the outer mounting surface of the steering knuckle body so that the outer mounting surface of the steering knuckle body fits against the brake disc mudguard; the upper control arm assembly is mounted on the longitudinal beam and connected to the steering knuckle assembly, including: mounting the upper control arm assembly on the longitudinal beam and connecting it to the steering knuckle body through the upper ball joint assembly.

[0015] Optionally, the drive shaft assembly is passed through the longitudinal beam through hole and its two ends are connected to the motor assembly and the suspension system, including: passing the drive shaft assembly through the first through hole and connecting it to the wheel hub bearing assembly.

[0016] Optionally, the upper control arm assembly is triangular in shape, with a first external mounting hole in the Z direction at the outer end and a first front mounting point and a first rear mounting point in the X direction at the inner ends, respectively; wherein, mounting the upper control arm assembly on the longitudinal beam and connecting it to the steering knuckle body through the upper ball joint assembly includes: connecting the upper control arm assembly to the steering knuckle assembly through the first external mounting hole and the upper ball joint assembly; and connecting the upper control arm assembly to the longitudinal beam through the first front mounting point and the first rear mounting point.

[0017] Optionally, the lower control arm assembly is also triangular in shape, with a second external mounting hole in the Z direction at the outer end and a second front mounting point and a second rear mounting point in the X direction at both inner ends; wherein, mounting the lower control arm assembly on the longitudinal beam and connecting it to the steering knuckle body through the lower ball joint assembly includes: connecting the lower control arm assembly to the steering knuckle body using the second external mounting hole; and connecting the lower control arm assembly to the longitudinal beam using the second front mounting point, the second rear mounting point, and an eccentric bolt and eccentric shim adjustment mechanism.

[0018] Optionally, the top and bottom of the slide column assembly are respectively provided with an upper lifting lug and a lower lifting lug; wherein, mounting the slide column assembly on the longitudinal beam and connecting it to the lower control arm assembly includes: connecting the slide column assembly to the longitudinal beam using the upper lifting lug; and connecting the slide column assembly to the lower control arm assembly using the lower lifting lug.

[0019] Optionally, a sixth through hole is provided in the middle of the lower control arm assembly, and a mounting plate extending to the bottom is provided in the sixth through hole; wherein, connecting the slide column assembly and the lower control arm assembly by means of the lower lifting lug includes: passing the lower lifting lug through the sixth through hole; and connecting the lower lifting lug to the mounting plate.

[0020] Optionally, the lateral stabilizer bar assembly includes a connecting rod assembly, a stabilizer bar body, bushings, and clips;

[0021] The method of placing the lateral stabilizer bar assembly on one side of the longitudinal beam through-hole and connecting it to the suspended rear crossbeam assembly includes: fitting a bushing onto the stabilizer bar body; clamping the bushing and stabilizer bar body with a clamp and connecting the clamp to the suspended rear crossbeam assembly; wherein the bushing and the clamp are interference-fitted; and connecting the lower control arm assembly to the longitudinal beam, the brake angle assembly, and the lateral stabilizer bar assembly includes: connecting the lower control arm assembly to the longitudinal beam and the brake angle assembly; and connecting the connecting rod assembly to the stabilizer bar body and the lower control arm assembly.

[0022] Optionally, the connecting rod assembly includes an upper ball joint, a lower bushing, and a rod; the stabilizer bar body has a seventh through hole in the X direction at both ends; wherein, connecting the connecting rod assembly to the stabilizer bar body and the lower control arm assembly includes: connecting the upper ball joint to the lower bushing using the rod, wherein the upper ball joint is located at the top end of the rod and the lower bushing is located at the bottom end of the rod; connecting the upper ball joint to the end of the stabilizer bar body using the seventh through hole; and connecting the lower bushing to the lower control arm assembly.

[0023] Optionally, the lower control arm assembly has a protruding first threaded hole on its side; wherein, connecting the lower bushing to the lower control arm assembly includes: using the first threaded hole to install the lower bushing onto the lower control arm assembly and connecting it to the lower control arm assembly.

[0024] Optionally, the steering assembly includes a rack, a steering body, and a tie rod assembly; wherein mounting the steering assembly on top of the rear crossbeam assembly includes: mounting the steering body on top of the rear crossbeam assembly; mounting the rack inside the steering body, with both ends connected to the tie rod assembly; wherein the tie rod outer ball joint assembly extends along the Z direction; and connecting the tie rod outer ball joint assembly to the steering knuckle body.

[0025] Optionally, the rear end and front end of the steering knuckle body are respectively provided with vertical mounting holes and lateral mounting holes; wherein, connecting the tie rod assembly to the steering knuckle body includes: connecting the steering knuckle body to the outer ball joint of the tie rod assembly using the vertical mounting holes; and installing the brake caliper assembly on the steering knuckle assembly includes: connecting the brake caliper assembly to the steering knuckle body using the lateral mounting holes.

[0026] In summary, this application directly connects the suspension system to the vehicle's longitudinal beams. Specifically, it directly connects the upper control arm assembly, lower control arm assembly, and strut to the longitudinal beams, eliminating the need for external connecting parts (such as subframes and turret structures). This reduces the number of parts and installation steps, thereby minimizing errors when the driving module is installed on the vehicle body and improving overall vehicle assembly precision. Furthermore, the installation of the suspension system and rear suspension crossbeam requires no auxiliary tooling; only the corresponding mating structures between components need to be connected, simplifying the installation process and reducing costs. In addition, the reduction in the number of parts and installation steps significantly reduces cost and installation difficulty while improving efficiency. This solves the technical problems of existing technologies where the upper control arm assembly, lower control arm assembly, and strut assembly all need to be installed on the subframe and turret structure, resulting in a large number of parts, long assembly dimension chains, large installation tolerances, and increased costs. Attached Figure Description

[0027] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the structure of a driving module provided as an example in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the overall structure of the upper control arm assembly provided as an example in an embodiment of the present invention;

[0030] Figure 3 This is a schematic diagram of the overall structure of the lower control arm assembly provided as an example in an embodiment of the present invention;

[0031] Figure 4 This is a schematic diagram of the overall structure of the steering knuckle assembly provided as an example in an embodiment of the present invention;

[0032] Figure 5 This is an exemplary schematic diagram of the inner side installation of the steering knuckle body provided in an embodiment of the present invention;

[0033] Figure 6 This is a schematic diagram of the outer side mounting of a steering knuckle assembly provided as an example in an embodiment of the present invention;

[0034] Figure 7 This is a schematic diagram of the connection of an exemplary lateral stabilizer bar device provided in an embodiment of the present invention;

[0035] Figure 8 This is a schematic diagram of the overall structure of the steering gear assembly provided as an example in an embodiment of the present invention;

[0036] Figure 9 This is a schematic diagram of the structure of a driving module provided in an embodiment of the present invention;

[0037] Figure 10 This is a schematic diagram of the structure of a driving module provided in an embodiment of the present invention;

[0038] Figure 11 This is an exploded view of an exemplary rear suspension beam device provided in an embodiment of the present invention;

[0039] Figure 12 This is an exploded view of the braking angle assembly provided as an example in an embodiment of the present invention;

[0040] Figure 13 This is an exploded view of a motor mount provided as an example in an embodiment of the present invention;

[0041] Figure 14 A flowchart illustrating a method for assembling a driving module according to an embodiment of the present invention;

[0042] Figure 15 A flowchart of a driving module assembly method provided in an embodiment of the present invention; and

[0043] Figure 16 This is a flowchart of a driving module assembly method provided in an embodiment of the present invention.

[0044] The components represented by each number in the above attached diagram are listed below:

[0045] 1. Flexible body section assembly; 2. Longitudinal beams;

[0046] 4. Anti-collision beam assembly; 3. Drive shaft assembly;

[0047] 5. Rear suspension beam assembly; 6. Motor assembly;

[0048] 8. Motor mount; 1100. Wheel assembly;

[0049] 11. Torque box assembly; 81. First suspension mount;

[0050] 12. Install the crossbeam; 82. Second suspension;

[0051] 21. Longitudinal beam through-hole; 41. Energy-absorbing box;

[0052] 19. Brake angle assembly; 42. Anti-collision beam;

[0053] 309. Mounting through hole; 22. Rear crossbeam assembly;

[0054] 710. Steering input shaft; 311. Lateral mounting hole;

[0055] 100. Upper control arm assembly; 300. Steering knuckle assembly;

[0056] 400. Sliding column assembly; 110. First external mounting hole;

[0057] 200. Lower control arm assembly; 308. External mounting surface;

[0058] 800. Brake disc mudguard; 900. Wheel hub bearing assembly;

[0059] 330. Steering knuckle body; 112. Brake disc;

[0060] 310. Upper ball head pin assembly; 320. Lower ball head pin assembly;

[0061] 120. First front mounting point; 430. Upper lifting lug;

[0062] 130. First rear installation point;

[0063] 440. Lower lifting lug; 210. Second external mounting hole;

[0064] 220. Second front mounting point; 500. Lateral stabilizer bar assembly;

[0065] 230. Second rear installation point;

[0066] 600. Connecting rod assembly; 510. Stabilizer bar body;

[0067] 520. Bushing; 530. Clip;

[0068] 650, upper ball head; 660, lower bushing;

[0069] 670. Rod; 515. Seventh through hole;

[0070] 260, First threaded hole; 250, Sixth through hole;

[0071] 240. Mounting plate; 303. First through hole

[0072] 301, Second through hole; 302, Third through hole;

[0073] 304, Fourth Through Hole; 305, Fifth Through Hole;

[0074] 700. Steering gear assembly; 701. Rack;

[0075] 702. Steering gear body; 707. Tie rod assembly;

[0076] 307. Vertical mounting hole; 1200. Suspension system. Detailed Implementation

[0077] To make the above and other features and advantages of the present invention clearer, the invention will be further described below with reference to the accompanying drawings. It should be understood that the specific embodiments given herein are for the purpose of explanation to those skilled in the art and are exemplary only, not restrictive.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0080] It should be noted that the coordinate descriptions such as "X direction, Y direction, Z direction" mentioned in the description of this invention are all interpreted with reference to the vehicle coordinate system. That is, the straight line where the front of the vehicle is located is the X direction, the width of the vehicle is the Y direction, and the direction perpendicular to the ground is the Z direction. The positive X direction is the rear direction of the vehicle, the negative X direction is the front direction of the vehicle, the positive Z direction is perpendicular to the ground and upward, and the negative Z direction is perpendicular to the ground and downward.

[0081] The driving module of this application includes a flexible body section assembly 1, longitudinal beams 2, anti-collision beam assembly 4, motor mount 8, rear suspension crossbeam device 5, motor assembly 6, suspension system 1200, drive shaft assembly 3, and wheel assembly 1100. Through optimized structural design of the suspension system 1200, the upper control arm assembly 100, lower control arm assembly 200, and strut assembly 400 of the suspension system 1200 are directly connected to the longitudinal beams 2 of the body, eliminating the need for external connecting parts (such as subframes and turret structures) for transition, thereby reducing the number of parts. Furthermore, the reduction in the number of parts reduces the error when the driving module is installed on the body. This invention solves the technical problems in the existing technology where the upper control arm assembly 100, lower control arm assembly 200, and sliding pillar assembly 400 of the suspension system 1200 all need to be installed on the subframe and turret structure, resulting in a large number of parts, a long assembly dimension chain, large installation tolerances, and a large variety and number of auxiliary tooling, which leads to high consumption costs.

[0082] Please refer to Figures 1-16In one specific embodiment of this application, the driving module includes: a flexible body section assembly 1, a longitudinal beam 2, a crash beam assembly 4, a motor mount 8, a rear suspension crossbeam device 5, a motor assembly 6, a suspension system 1200, a drive shaft assembly 3, and a wheel assembly 1100, with a through hole 21 provided in the middle of the longitudinal beam 2; wherein, as Figure 14 As shown, the assembly method includes the following steps:

[0083] Step S11: Install the longitudinal beam 2 onto the flexible body section assembly 1.

[0084] Step S12: Install the anti-collision beam assembly 4 onto the longitudinal beam 2.

[0085] Step S13: Install the motor suspension 8 on the longitudinal beam 2.

[0086] Step S14: Install the rear suspension crossbeam device 5 below the connection between the longitudinal beam 2 and the vehicle body flexible section assembly, wherein the motor mount 8 and the rear suspension crossbeam device 5 are spaced apart along the X direction.

[0087] Step S15: Connect the motor assembly 6 to the motor mount 8 and the rear mount beam device 5 respectively.

[0088] Step S16: Install the suspension system 1200 on the longitudinal beam 2 and connect it to the rear suspension crossbeam device 5.

[0089] Step S17: Pass the drive shaft assembly 3 through the through hole 21 in the middle of the longitudinal beam, and connect its two ends to the motor assembly 6 and the suspension system 1200 respectively.

[0090] Step S18: Install the wheel assembly 1100 onto the suspension system 1200.

[0091] The installation of the driving module can be completed by following the steps described above. During the installation process, the flexible body section assembly 1 is used as the assembly reference. Since there are many components assembled on the longitudinal beam 2, in order to adapt to the installation of the driving module, the longitudinal beam 2 is first installed on the flexible body section assembly 1, which facilitates the subsequent installation of other components.

[0092] Secondly, this application mounts the anti-collision beam assembly 4 on the longitudinal beam 2, so that the longitudinal beam 2, the anti-collision beam assembly 4, and the body flexible section assembly 1 form an installation frame, which facilitates the subsequent installation of other components. Specifically, the motor mount 8 is mounted on the inner wall of the vehicle's longitudinal beam 2, away from the body flexible section assembly 1, and the rear suspension crossbeam device 5 is mounted below the connection between the vehicle's longitudinal beam 2 and the body flexible section assembly 1, so that the rear suspension crossbeam device 5 and the motor mount 8 are spaced apart, thereby meeting the assembly requirements of the vehicle's motor assembly 6. Then, the vehicle's motor assembly 6 is connected to the motor mount 8 and the rear suspension crossbeam device 5 respectively, to achieve installation within the aforementioned installation frame. After installing the motor assembly 6, the suspension system 1200 is mounted on the outside of the longitudinal beam 2 and connected to the rear suspension crossbeam device 5; then the drive shaft assembly 3 is inserted through the longitudinal beam through hole 21 and installed between the motor assembly 6 and the suspension system 1200 to realize the assembly of vehicle power; finally, the wheel assembly 1100 is mounted on the outside of the brake disc on the wheel hub bearing assembly 900 of the suspension system 1200.

[0093] Furthermore, by directly connecting the suspension system 1200 to the longitudinal beam 2, the need for external connecting parts (such as the subframe and turret structure) is eliminated, reducing the number of parts and installation steps. This reduces errors when the running gear is installed on the vehicle body, thereby improving the overall assembly accuracy of the vehicle. Moreover, the installation of the suspension system 1200 and the rear suspension crossbeam device 5 requires no other auxiliary tooling; only the corresponding mating structures between the components need to be connected, thus reducing installation difficulty and cost. In addition, the reduction in the number of parts and installation steps significantly reduces cost and improves installation efficiency. This solves the technical problems of existing technologies where the upper control arm assembly 100, lower control arm assembly 200, and sliding strut assembly 400 of the suspension system 1200 all need to be installed on the subframe and turret structure, resulting in a large number of parts, a long assembly dimension chain, large installation tolerances, and a large variety and quantity of auxiliary tooling, leading to high costs.

[0094] Furthermore, there are two longitudinal beams 2. The flexible body assembly 1 includes two integrally formed torque box assemblies 11 and a mounting beam 12. The two torque box assemblies 11 are respectively connected to two opposite side walls at both ends of the mounting beam 12. A first groove (not shown in the figure) is provided on the torque box assembly 11. The two torque box assemblies 11 are spaced apart along the Y direction. Step S11 includes: using the first groove (not shown in the figure) to install the longitudinal beam 2 on the torque box assembly 11. The longitudinal beam 2 corresponds one-to-one with the torque box assembly 11.

[0095] In this application, there are two longitudinal beams 2. The vehicle body flexible section assembly 1 includes two integrally formed torque box assemblies 11 and mounting crossbeams 12. In this application, a first groove (not shown in the figure) on the torque box assembly 11 allows part of the vehicle longitudinal beam 2 to be inserted into the first groove (not shown in the figure). Then, the vehicle longitudinal beam 2 can be installed on the vehicle torque box assembly 11 by bolts and nuts, ensuring the stability of the connection while facilitating the disassembly and installation of the longitudinal beam 2 and the torque box assembly 11.

[0096] In an optional embodiment of this application, there are two longitudinal beams 2, and the anti-collision beam assembly 4 includes: two energy-absorbing boxes 41 and an anti-collision beam 42; the energy-absorbing box 41 is provided with a second groove (not shown in the figure); wherein, step S12 includes:

[0097] Step S121: Use the second groove (not shown in the figure) to install the anti-collision beam 42 onto the two energy-absorbing boxes 41.

[0098] Step S122: Install the energy-absorbing box 41 onto the longitudinal beam 2, wherein the energy-absorbing box 41 corresponds one-to-one with the longitudinal beam 2.

[0099] The anti-collision beam 42 is positioned and installed by the mating of the second grooves (not shown in the figure) on the two energy-absorbing boxes 41. The second grooves (not shown in the figure) correspond one-to-one with the energy-absorbing boxes 41, and the positions of the second grooves (not shown in the figure) on the corresponding energy-absorbing boxes 41 are the same, thereby ensuring more accurate installation of the anti-collision beam 42 on the energy-absorbing boxes 41. After the anti-collision beam 42 is installed on the energy-absorbing boxes 41, the energy-absorbing boxes 41 are then installed on the longitudinal beam 2. The longitudinal beam 2 and the energy-absorbing boxes 41 are stably connected by bolts and nuts, which also facilitates the disassembly and installation of the longitudinal beam 2 and the energy-absorbing boxes 41.

[0100] In an optional embodiment of this application, there are two longitudinal beams 2, and the motor suspension 8 includes a first suspension 81 and a second suspension 82; wherein, step S13 includes:

[0101] Step S130: Install the first suspension 81 on the inner wall of one of the longitudinal beams 2.

[0102] Step S131: Install the second suspension 82 on the inner wall of another longitudinal beam 2; wherein the first suspension 81 and the second suspension 82 are set accordingly.

[0103] In this application, the motor mount 8 includes a first mount 81 and a second mount 82, corresponding to two longitudinal beams 2. The first mount 81 is installed on the inner wall of one of the longitudinal beams 2, and the second mount 82 is installed on the inner wall of the other longitudinal beam 2. The first mount 81 and the second mount 82 are arranged opposite to each other on the longitudinal beams 2. Through the cooperation between the first mount 81 and the second mount 82, the stability of the motor assembly 6 can be effectively guaranteed.

[0104] In an optional embodiment of this application, the rear suspension beam assembly 5 includes: a lateral stabilizer bar assembly 500, a steering gear assembly 700, and a rear suspension beam assembly 22; wherein, step S14 includes:

[0105] Step S140: The transverse stabilizer assembly 500 is placed on one side of the longitudinal beam through hole 21 and connected to the suspended crossbeam assembly 22.

[0106] Step S141: Install the steering assembly 700 on top of the rear crossbeam assembly 22.

[0107] Step S142: Install the rear crossbeam assembly 22 below the connection between the longitudinal beam 2 and the body flexible section assembly 1.

[0108] Step S15 includes: connecting the motor assembly 6 to the motor mount 8 and the rear crossbeam assembly 22 of the mount respectively.

[0109] The rear suspension beam assembly 5 is formed by connecting the lateral stabilizer bar assembly 500, the steering gear assembly 700, and the rear suspension beam assembly 22, and then the rear suspension beam assembly 5 is installed on the longitudinal beam 2. Specifically, the lateral stabilizer bar assembly 500 is first installed on the rear suspension beam assembly 22, and then the steering gear assembly 700 is installed on top of the rear suspension beam assembly 22 to form the rear suspension beam assembly 5. The lateral stabilizer bar assembly 500 and the steering gear assembly 700 are staggered. After assembling the rear suspension beam assembly 5, the rear suspension beam assembly 22 is installed below the connection between the longitudinal beam 2 and the body flexible section assembly 1. The three-point planar fixation of the motor assembly 6 is achieved through the cooperation of the rear suspension beam assembly 22, the first suspension 81, and the second suspension 82.

[0110] like Figure 15 As shown, in an optional embodiment of this application, the suspension system 1200 includes: a brake angle assembly 19, an upper control arm assembly 100, a lower control arm assembly 200, and a strut assembly 400; wherein, step S16 includes:

[0111] Step S161: Install the sliding column assembly 400 on the longitudinal beam 2 and connect it to the lower control arm assembly 200.

[0112] Step S162: Install the upper control arm assembly 100 on the longitudinal beam 2 and connect it to the brake angle assembly 19.

[0113] Step S163: Connect the lower control arm assembly 200 to the longitudinal beam 2, the braking angle assembly 19, and the lateral stabilizer bar assembly 500.

[0114] First, the upper lifting lug 430 of the sliding column assembly 400 is installed on the longitudinal beam 2, and the lower lifting lug 440 passes through the sixth through hole 250. Then, the lower control arm assembly 200 and the upper control arm assembly 100 are installed on the outer side wall of the longitudinal beam 2 and connected to the brake angle assembly 19 respectively. The lower control arm assembly 200 is then connected to the lower lifting lug 440 of the sliding column and the lateral stabilizer bar assembly 500 to form the external mounting frame of the longitudinal beam 2.

[0115] like Figure 16 As shown, in an optional embodiment of this application, the brake angle assembly 19 includes: a steering knuckle assembly 300, a brake disc mudguard 800, a wheel hub bearing assembly 900, a brake disc 112, and a brake caliper assembly (not shown in the figure); wherein, step S162 includes:

[0116] Step S1620: Install the brake disc mudguard 800 inside the wheel hub bearing assembly 900.

[0117] Step S1621: Connect the wheel hub bearing assembly 900 to the steering knuckle assembly 300 so that the steering knuckle assembly 300 fits against the brake disc mudguard 800.

[0118] Step S1622: Install the brake disc 112 onto the flange of the wheel hub bearing assembly 900.

[0119] Step S1623: Install the brake caliper assembly onto the steering knuckle assembly 300.

[0120] Step S1624: Install the upper control arm assembly 100 on the longitudinal beam 2 and connect it to the steering knuckle assembly 300.

[0121] Step S18 includes: mounting the wheel assembly 1100 on the outside of the brake disc 12 on the wheel hub bearing assembly 900.

[0122] First, the brake disc mudguard 800 is installed inside the wheel hub bearing assembly 900. Then, the wheel hub bearing assembly 900 is connected to the steering knuckle assembly 300 so that the steering knuckle assembly 300 fits snugly against the brake disc mudguard 800, thus preventing mud from splashing onto the brake disc 112. Next, the brake disc 112 is installed on the wheel hub bearing assembly 900 to achieve the vehicle's braking effect. Finally, the wheel assembly 1100 is assembled on the outer side of the brake disc 112 on the wheel hub bearing assembly 900 to complete the installation of the outer components of the longitudinal beam 2.

[0123] It should be noted that brake caliper assemblies are existing technology.

[0124] In an optional embodiment of this application, the steering knuckle assembly 300 includes: a steering knuckle body 330, an upper ball joint assembly 310, and a lower ball joint assembly 320; a first through hole 303 is provided in the middle of the steering knuckle body 330, and a second through hole 301 and a third through hole 302 are provided at the top and bottom, respectively; wherein, the second through hole 301 and the third through hole 302 protrude from their sides, and a fourth through hole 304 and a fifth through hole 305 are arranged thereon; wherein, step S1621 includes:

[0125] S16210: Press the upper ball head pin assembly 310 into the second through hole 301 from top to bottom; wherein the bottom of the upper ball head pin assembly 310 does not protrude from the second through hole 301;

[0126] S16211: Press the lower ball head pin assembly 320 into the third through hole 302 from top to bottom; wherein the bottom of the lower ball head pin assembly 320 does not protrude from the third through hole 302;

[0127] S16212: Pass the corresponding bolts through the fourth through hole 304 and the fifth through hole 305 respectively, and connect them with the corresponding nuts to tighten the upper ball joint assembly 310 and the steering knuckle body 330 and the lower ball joint assembly 320 and the steering knuckle body 330 respectively.

[0128] S16213: Connect the wheel hub bearing assembly 900 to the outer mounting surface 308 of the steering knuckle body 330 so that the outer mounting surface 308 of the steering knuckle body 330 fits against the brake disc mudguard 800.

[0129] Step S1624 includes:

[0130] Step S16240: Install the upper control arm assembly 100 on the longitudinal beam 2 and connect it to the steering knuckle body 330 via the upper ball joint pin assembly 310.

[0131] The steering knuckle assembly 300 includes a steering knuckle body 330, an upper ball joint assembly 310, and a lower ball joint assembly 320. A first through hole 303 is arranged in the middle of the steering knuckle body 330. The size of the first through hole 303 is adapted to the drive shaft assembly 3, allowing the drive shaft assembly 3 to pass through and connect to the wheel hub bearing assembly 900. A second through hole 301 and a third through hole 302 are respectively provided at the top and bottom of the steering knuckle body 330. The upper ball joint assembly 310 and the lower ball joint assembly 320 are pressed into the second through hole 301 and the third through hole 302, respectively. 2. The upper control arm assembly 100, the lower control arm assembly 200, and the steering knuckle assembly 300 are connected by the upper ball joint assembly 310 and the lower ball joint assembly 320. The outer sides of the second through hole 301 and the third through hole 302 protrude, and the protruding parts are provided with the fourth through hole 304 and the fifth through hole 305, so that the bolts and nuts can clamp the upper ball joint assembly 310 and the steering knuckle body 330, and prevent the upper ball joint assembly 310 and the lower ball joint assembly 320 from falling off.

[0132] In addition, the bottom of the upper ball joint assembly 310 does not protrude from the second through hole 301, and the bottom of the lower ball joint assembly 320 does not protrude from the third through hole 302, which can effectively reduce the installation height of the upper control arm assembly 100 and the lower control arm assembly 200, thereby adapting to new skateboard chassis type electric vehicles.

[0133] In an optional embodiment, the outer mounting surface 308 of the steering knuckle body 330 is also provided with four mounting through holes 309. The mounting through holes 309 are arranged around the first through hole 303 for mounting the wheel hub bearing assembly 900. At the same time, the outer mounting surface 308 also provides axial limiting for the wheel hub bearing assembly 900 to ensure that the drive shaft assembly 3 is aligned and connected with the wheel hub bearing.

[0134] In an optional embodiment of this application, step S17 includes: passing the drive shaft assembly 3 through the first through hole 303 and connecting it to the hub bearing assembly 900.

[0135] By using the spatial relationship between the first through hole 303 and the longitudinal beam through hole 21, the drive shaft assembly 3 and the wheel hub bearing assembly 900 are positioned and connected, thereby making the assembly of the drive shaft assembly 3, the motor assembly 6 and the wheel hub bearing 900 faster.

[0136] In an optional embodiment of this application, the upper control arm assembly 100 is triangular fork-shaped, with a first external mounting hole 110 in the Z direction at its outer end, and a first front mounting point 120 and a first rear mounting point 130 in the X direction respectively arranged at its inner ends; wherein, step S16240 includes:

[0137] S162401: The upper control arm assembly 100 is connected to the steering knuckle assembly 300 via the upper ball joint assembly 310 using the first external mounting hole 110.

[0138] S162402: The upper control arm assembly 100 is connected to the longitudinal beam 2 using the first front mounting point 120 and the first rear mounting point 130.

[0139] The first external mounting hole 110 and the second external mounting hole 210 of this application are respectively matched with the upper ball head pin assembly 310 and the lower ball head pin assembly 320, and the ball head pins are all facing upward in the Z direction. Therefore, the operation of tightening the connecting nut is more convenient, without the need to flip the entire driving module or change the direction of personnel operation, which helps to improve efficiency.

[0140] In an optional embodiment of this application, the lower control arm assembly 200 is also triangular fork-shaped, with a second external mounting hole 220 in the Z direction at the outer end, and a second front mounting point 210 and a second rear mounting point 230 in the X direction at both inner ends; wherein, step S16240 includes:

[0141] Step S162401: Connect the lower control arm assembly 200 to the steering knuckle body 330 using the second external mounting hole 220.

[0142] Step S162402: Connect the lower control arm assembly 200 to the longitudinal beam 2 using the second front mounting point 210, the second rear mounting point 230, and an eccentric bolt and eccentric shim adjustment mechanism.

[0143] In this application, the lower control arm assembly 200 is triangular fork-shaped, and its inner side is fixed to the outer bottom of the longitudinal beam 2 by two points in the Y direction at the front and rear. The second front mounting point 210 and the second rear mounting point 230 are both fixed to the longitudinal beam 2 by means of eccentric bolts and eccentric shim adjustment mechanisms. After the steering knuckle body 330 is positioned and installed through the second outer mounting hole 220, the camber angle of the wheel assembly 1100 can be adjusted by changing the distance between the lower control arm assembly 200 and the longitudinal beam 2. This allows the driving module to adapt to the different performance requirements of the front and rear axles or to compensate for the wheel camber angle tolerance caused by the manufacturing of parts and the assembly of the whole vehicle.

[0144] In an optional embodiment of this application, the top and bottom of the sliding column assembly 400 are respectively provided with an upper lifting lug 430 and a lower lifting lug 440; wherein, step S161 includes:

[0145] Step S1610: Connect the sliding column assembly 400 to the longitudinal beam 2 using the upper lifting lug 430.

[0146] Step S1611: Connect the slide column assembly 400 to the lower control arm assembly 200 using the lower lug 440.

[0147] The sliding column assembly 400 is positioned and installed by the cooperation between the upper hanger 430 and the longitudinal beam 2, and the lower hanger 440 and the lower control arm assembly 200. The Z-axis height of the upper hanger 430 is flush with the upper control arm assembly 100, ensuring that the Z-axis height of the sliding column assembly 400 is lower than the Z-axis limiting surface of the longitudinal beam 2. This ensures a smooth top surface of the suspension system 1200, reducing the height of the driving module and making the suspension system 1200 more compatible with the vehicle body height. Furthermore, by arranging the sliding column assembly 400 of the suspension system 1200 adjacent to the upper control arm assembly 100, the restriction of the spring outer diameter in the sliding column assembly 400 by the motion envelope of the upper control arm assembly 100 is reduced, increasing the variable bandwidth of the spring outer diameter. This allows for the accommodation of air springs, adapting to the expansion needs of multiple vehicle models and further improving the adaptability between the suspension system 1200 and the vehicle body. Meanwhile, both the upper control arm assembly 100 and the lower control arm assembly 200 are directly connected to the longitudinal beam 2, eliminating the need for a vehicle turret and subframe structure. This simplifies the structure of the driving module, reduces installation steps, and lowers manufacturing costs. Furthermore, the driving module can be rotated 180° in the Z direction and translated in the X direction to achieve front and rear compatibility.

[0148] In an optional embodiment of this application, a sixth through hole 230 is provided in the middle of the lower control arm assembly 200, and a mounting plate 240 extending downward is arranged in the sixth through hole 230; wherein, step S1611 includes:

[0149] S16110: Pass the lower lug 440 through the sixth through hole 230;

[0150] S16111: Connect the lower lifting lug 440 to the mounting plate 240.

[0151] This application positions and mounts the lower hanger 440 of the slide column assembly 400 by means of the mating position between the sixth through hole 250 in the middle of the lower control arm assembly 200 and the mounting plate 240 provided on the inner wall of the sixth through hole 250 and extending to the bottom, thereby more effectively reducing the height of the suspension system 1200 to match the height of the vehicle body.

[0152] In an optional embodiment of this application, the lateral stabilizer bar assembly 500 includes a connecting rod assembly 600, a stabilizer bar body 510, a bushing 520, and a clip 530; wherein, step S140 includes:

[0153] Step S1401: Fit the bushing 520 onto the stabilizer bar body 510.

[0154] Step S1402: Use clip 530 to clamp bushing 520 and stabilizer bar body 510 and connect clip 530 to suspension rear crossbeam assembly 22; wherein, bushing 520 and clip 530 are interference fit.

[0155] Step S163 includes:

[0156] Step S1630: Connect the lower control arm assembly 200 to the longitudinal beam 2 and the braking angle assembly 19.

[0157] Step S1631: Connect the connecting rod assembly 600 to the stabilizer bar body 510 and the lower control arm assembly 200.

[0158] The lateral stabilizer bar device is arranged in the suspended rear crossbeam assembly 22 connected between the longitudinal beams 2. It includes a connecting rod assembly 600, a stabilizer bar body 510, bushings 520 and clips 530. The bushings 520 and clips 530 cooperate to fix the stabilizer bar body 510 to the suspended rear crossbeam assembly 22 through the cooperation of the two bushings 520 and the two clips 530. The two ends of the stabilizer bar body 510 are respectively connected to the lower control arm assembly 200 through the connecting rod assembly 600.

[0159] In an optional embodiment of this application, the connecting rod assembly 600 includes an upper ball head 650, a lower bushing 660, and a rod 670; the stabilizer body 510 has a seventh through hole 515 in the X direction at both ends; wherein, step S1631 includes:

[0160] Step S16310: Connect the upper ball head 650 and the lower bushing 660 using the rod 670, wherein the upper ball head 650 is at the top of the rod 670 and the lower bushing 660 is at the bottom of the rod 670.

[0161] Step S16311: Connect the upper ball head 650 to the end of the stabilizer bar body 510 using the seventh through hole 515.

[0162] Step S16312: Connect the lower bushing 660 to the lower control arm assembly 200.

[0163] In this application, the upper ball joint 650 is positioned and installed by the mating position between the seventh through hole 515 and the end of the stabilizer bar body 510. After the upper ball joint 650 is installed at the end of the stabilizer bar body 510, the lower bushing 660 is connected to the lower control arm assembly 200. When the lower control arm assembly 200 adjusts the camber angle of the wheel assembly 1100, the upper ball joint 650 and the lower bushing 660 of the connecting rod assembly 600 can rotate, ensuring the camber angle adjustability of the lower control arm assembly 200.

[0164] In an optional embodiment of this application, a protruding first threaded hole 260 is provided on the side of the lower control arm assembly 200; wherein, step S16312 includes using the first threaded hole 260 to install the lower bushing 660 on the lower control arm assembly 200 and connect it to the lower control arm assembly 200.

[0165] This application positions and installs the lower bushing 660 of the connecting rod assembly 600 of the lateral stabilizer bar device through the first threaded hole 260 of the lower control arm assembly 200, and positions and installs the lower lifting lug 440 of the slide column assembly 400 through the sixth through hole 250 and the mounting plate 240 extending to the bottom from the inner wall of the sixth through hole 250, thus ensuring the connectability of the slide column assembly 400 and the connecting rod assembly 600.

[0166] In an optional embodiment of this application, the steering gear assembly 700 includes a rack 701, a steering gear body 702, and a tie rod assembly 707; wherein, step S141 includes:

[0167] S1410: Mount the steering body 702 on top of the rear crossbeam assembly 22.

[0168] S1411: The rack 701 is installed inside the steering gear body 702, and both ends are connected to the tie rod assembly 707, wherein the tie rod assembly 707 extends along the Z direction.

[0169] S1412: Connect the tie rod assembly 707 to the steering knuckle body 330.

[0170] A steering gear assembly 700 is arranged between the longitudinal beams 2. The steering gear assembly 700 is located in the top space of the rear crossbeam assembly 22. Taking the front axle as an example, it is located behind the wheel center and installed below the connection between the longitudinal beam 2 and the body flexible section assembly 1. The outer end of the rack 701 is connected to the tie rod assembly 707. Through the cooperation between the tie rod assembly 707 and the rack 701, the steering knuckle body 330 is positioned and installed, thereby realizing the steering function of the vehicle.

[0171] In an optional embodiment of this application, the rear end and front end of the steering knuckle body 330 are respectively provided with a vertical mounting hole 307 and a lateral mounting hole 311; wherein, step S1411 includes: connecting the steering knuckle body 330 to the tie rod assembly 707 using the vertical mounting hole 307.

[0172] Step S1623 includes connecting the brake caliper assembly (not shown) to the steering knuckle body 330 using the lateral mounting hole 311.

[0173] This application uses the vertical mounting hole 307 and the tie rod assembly 707 to position and install the steering knuckle body 330, and uses the lateral mounting hole 311 to position and install the vehicle's brake caliper assembly (not shown in the figure) to ensure the realization of the braking function.

[0174] In an optional embodiment, the steering assembly 700 further includes a steering input shaft 710 for connecting the vehicle steering wheel and the steering drive shaft.

[0175] In an optional embodiment, the vehicle's suspension system 1200 is mounted on two longitudinal beams 2 of the vehicle, that is, the suspension system 1200 is mounted on each longitudinal beam 2.

[0176] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A method for assembling a driving module, characterized in that, The driving module includes: a flexible body section assembly, longitudinal beams, a crash beam assembly, a motor mount, a rear suspension crossbeam assembly, a motor assembly, a suspension system, a drive shaft assembly, and a wheel assembly. The longitudinal beams have through holes in their middle sections. The assembly method includes the following steps: The longitudinal beam is mounted on the flexible body section assembly; The anti-collision beam assembly is installed on the longitudinal beam; The motor is suspended and mounted on the longitudinal beam; The rear suspension crossbeam device is installed below the connection between the longitudinal beam and the flexible body section assembly, wherein the motor mount and the rear suspension crossbeam device are spaced apart along the X direction, and the X direction is the straight line in the direction of the front of the vehicle; The motor assembly is connected to the motor mount and the rear mount crossbeam assembly respectively; The suspension system is mounted on the longitudinal beam and connected to the rear suspension crossbeam assembly; The drive shaft assembly is passed through the hole in the middle of the longitudinal beam, and its two ends are respectively connected to the motor assembly and the suspension system; The wheel assembly is mounted on the suspension system; The rear suspension crossbeam assembly includes: a lateral stabilizer bar assembly, a steering gear assembly, and a rear suspension crossbeam assembly; wherein, mounting the rear suspension crossbeam assembly below the connection between the longitudinal beam and the vehicle body flexible section assembly includes: The lateral stabilizer assembly is arranged on one side of the longitudinal beam through hole and connected to the suspended rear crossbeam assembly; The steering assembly is mounted on top of the rear suspension beam assembly; The rear suspension beam assembly is installed below the connection between the longitudinal beam and the body flexible section assembly; Connecting the motor assembly to the motor mount and the rear mount crossbeam assembly respectively includes: The motor assembly is connected to the motor mount and the rear crossbeam assembly of the mount, respectively. The suspension system includes: a brake angle assembly, an upper control arm assembly, a lower control arm assembly, and a sliding strut assembly; wherein, mounting the suspension system on the longitudinal beam and connecting it to the rear suspension crossbeam assembly includes: The sliding column assembly is mounted on the longitudinal beam and connected to the lower control arm assembly; The upper control arm assembly is mounted on the longitudinal beam and connected to the brake angle assembly; The lower control arm assembly is connected to the longitudinal beam, the braking angle assembly, and the lateral stabilizer bar assembly.

2. The assembly method of the driving module according to claim 1, characterized in that, The longitudinal beams are two in number. The flexible body section assembly includes two integrally formed torque box assemblies and a mounting beam. The two torque box assemblies are respectively connected to two opposite side walls at both ends of the mounting beam. Each torque box assembly is provided with a first groove. The two torque box assemblies are spaced apart along the Y direction, where the Y direction is the width direction of the vehicle body. Installing the longitudinal beams onto the flexible body section assembly includes: The longitudinal beam is mounted on the torsion box assembly using the first groove; wherein, the longitudinal beam corresponds one-to-one with the torsion box assembly.

3. The assembly method of the driving module according to claim 1, characterized in that, There are two longitudinal beams, and the anti-collision beam assembly includes: two energy-absorbing boxes and an anti-collision beam; the energy-absorbing box is provided with a second groove; wherein, installing the anti-collision beam assembly on the longitudinal beam includes: The anti-collision beam is installed onto the two energy-absorbing boxes using the second groove; The energy-absorbing box is installed on the longitudinal beam, wherein the energy-absorbing box corresponds one-to-one with the longitudinal beam.

4. The assembly method of the driving module according to claim 1, characterized in that, There are two longitudinal beams, and the motor mount includes a first mount and a second mount; wherein, mounting the motor mount on the longitudinal beam includes: The first suspension is mounted on the inner wall of one of the longitudinal beams; The second suspension is mounted on the inner wall of another longitudinal beam; wherein the first suspension and the second suspension are respectively arranged.

5. The assembly method of the driving module according to claim 1, characterized in that, The brake angle assembly includes: a steering knuckle assembly, a brake disc mudguard, a wheel hub bearing assembly, a brake disc, and a brake caliper assembly; wherein, mounting the upper control arm assembly on the longitudinal beam and connecting it to the brake angle assembly includes: The brake disc mudguard is installed on the inside of the wheel hub bearing assembly; The wheel hub bearing assembly is connected to the steering knuckle assembly so that the steering knuckle assembly fits against the brake disc mudguard; The brake disc is mounted on the flange of the wheel hub bearing assembly; The brake caliper assembly is mounted on the steering knuckle assembly; The upper control arm assembly is mounted on the longitudinal beam and connected to the steering knuckle assembly; Mounting the wheel assembly onto the suspension system includes: The wheel assembly is mounted on the outside of the brake disc on the wheel hub bearing assembly.

6. The assembly method of the driving module according to claim 5, characterized in that, The steering knuckle assembly includes: a steering knuckle body, an upper ball joint assembly, and a lower ball joint assembly; a first through hole is provided in the middle of the steering knuckle body, and a second through hole and a third through hole are provided at the top and bottom, respectively; wherein, the second through hole and the third through hole protrude from their sides, and a fourth through hole and a fifth through hole are arranged thereon; wherein, connecting the wheel hub bearing assembly to the steering knuckle assembly so that the steering knuckle assembly fits against the brake disc mudguard includes: The upper ball head pin assembly is pressed into the second through hole from top to bottom; wherein the bottom of the upper ball head pin assembly does not protrude from the second through hole; The lower ball head pin assembly is pressed into the third through hole from top to bottom; wherein the bottom of the lower ball head pin assembly does not protrude from the third through hole; The corresponding bolts are passed through the fourth and fifth through holes respectively and connected to the corresponding nuts to tighten the upper ball joint assembly and the steering knuckle body and the lower ball joint assembly and the steering knuckle body respectively. The wheel hub bearing assembly is connected to the outer mounting surface of the steering knuckle body so that the outer mounting surface of the steering knuckle body is in contact with the brake disc mudguard. Mounting the upper control arm assembly onto the longitudinal beam and connecting it to the steering knuckle assembly includes: The upper control arm assembly is mounted on the longitudinal beam and connected to the steering knuckle body via the upper ball joint assembly.

7. The assembly method of the driving module according to claim 6, characterized in that, Passing the drive shaft assembly through the through hole in the middle of the longitudinal beam and connecting both ends of it to the motor assembly and the suspension system, including: The drive shaft assembly passes through the first through hole and is connected to the wheel hub bearing assembly.

8. The assembly method of the driving module according to claim 7, characterized in that, The upper control arm assembly is triangular in shape, with a first external mounting hole in the Z direction at its outer end, where the Z direction is perpendicular to the ground. The inner ends are respectively provided with a first front mounting point and a first rear mounting point in the X direction. Mounting the upper control arm assembly onto the longitudinal beam and connecting it to the steering knuckle body via the upper ball joint assembly includes: The upper control arm assembly is connected to the steering knuckle assembly via the upper ball joint assembly using the first external mounting hole; The upper control arm assembly is connected to the longitudinal beam using the first front mounting point and the first rear mounting point.

9. The assembly method of the driving module according to claim 7, characterized in that, The lower control arm assembly is also triangular in shape, with a second external mounting hole in the Z direction at one outer end, and two prongs at the other inner end respectively arranged with a second inner front mounting point and a second rear mounting point in the X direction; wherein, mounting the lower control arm assembly on the longitudinal beam and connecting it to the steering knuckle body through the lower ball joint assembly includes: The lower control arm assembly is connected to the steering knuckle body using the second external mounting hole; The lower control arm assembly is connected to the longitudinal beam using the second inner front mounting point, the second rear mounting point, and an eccentric bolt and eccentric shim adjustment mechanism.

10. The assembly method of the driving module according to claim 1, characterized in that, The top and bottom of the sliding column assembly are respectively provided with upper and lower lifting lugs; wherein, mounting the sliding column assembly on the longitudinal beam and connecting it to the lower control arm assembly includes: The upper lifting lug is used to connect the sliding column assembly to the longitudinal beam; The lower lug is used to connect the slide column assembly to the lower control arm assembly.

11. The assembly method of the driving module according to claim 10, characterized in that, The lower control arm assembly has a sixth through hole in its middle, and a mounting plate extending downwards is disposed within the sixth through hole; wherein, the lower lifting lug connects the sliding column assembly to the lower control arm assembly, including: Pass the lower lug through the sixth through hole; Connect the lower lifting lug to the mounting plate.

12. The method for assembling the driving module according to claim 1, wherein the lateral stabilizer bar assembly comprises a connecting rod assembly, a stabilizer bar body, a bushing, and a clip; in, The lateral stabilizer assembly is positioned on one side of the longitudinal beam through-hole and connected to the suspended rear crossbeam assembly, comprising: The bushing is fitted onto the stabilizer bar body; The bushing and the stabilizer bar body are clamped together using the clamp, and the clamp is connected to the suspended rear crossbeam assembly; wherein the bushing and the clamp are interference-fitted. Connecting the lower control arm assembly to the longitudinal beam, the braking angle assembly, and the lateral stabilizer bar assembly includes: Connect the lower control arm assembly to the longitudinal beam and the braking angle assembly; Connect the connecting rod assembly to the stabilizer bar body and the lower control arm assembly.

13. The assembly method of the driving module according to claim 12, characterized in that, The connecting rod assembly includes an upper ball head, a lower bushing, and a rod; both ends of the stabilizer bar body are provided with a seventh through hole in the X direction; wherein, connecting the connecting rod assembly to the stabilizer bar body and the lower control arm assembly includes: The upper ball head is connected to the lower bushing using the rod, wherein the upper ball head is located at the top end of the rod and the lower bushing is located at the bottom end of the rod; The upper ball head is connected to the end of the stabilizer bar body using the seventh through hole; The lower bushing is connected to the lower control arm assembly.

14. The assembly method of the driving module according to claim 13, characterized in that, The lower control arm assembly has a protruding first threaded hole on its side; wherein, connecting the lower bushing to the lower control arm assembly includes: The lower bushing is installed on the lower control arm assembly and connected to the lower control arm assembly using the first threaded hole.

15. The assembly method of the driving module according to claim 6, characterized in that, The steering assembly includes a rack, a steering body, and a tie rod assembly; wherein, mounting the steering assembly on top of the rear suspension beam assembly includes: The steering gear body is mounted on top of the rear suspension beam assembly; The rack is installed in the steering gear body, and its two ends are respectively connected to the tie rod assembly; wherein the tie rod assembly extends along the Z direction; Connect the tie rod assembly to the steering knuckle body.

16. The assembly method of the driving module according to claim 15, characterized in that, The rear end and front end of the steering knuckle body are respectively provided with vertical mounting holes and lateral mounting holes; wherein, connecting the tie rod assembly to the steering knuckle body includes: The steering knuckle body is connected to the outer ball joint of the tie rod assembly using the vertical mounting hole; Mounting the brake caliper assembly onto the steering knuckle assembly includes: The brake caliper assembly is connected to the steering knuckle body using the lateral mounting hole.

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