Extended-range automobile bottom layout structure and extended-range automobile

Abstract

The utility model discloses a bottom layout structure of a range-extended automobile and the range-extended automobile. The bottom layout structure comprises a front floor, a power battery, a left threshold, a right threshold, a middle exhaust pipeline, a high-voltage wire harness and a pipeline, the front floor is located at the bottom of an automobile, the left doorsill and the right doorsill are arranged on the front floor and located on the two sides of the automobile, and the power battery is located below the front floor and connected with the left doorsill and the right doorsill. The middle exhaust pipeline, the high-voltage wire harness and the pipeline extend in the front-back direction of the automobile, the middle exhaust pipeline penetrates through the first part of the area where the power battery is located and is arranged on the left threshold or the right threshold, and the high-voltage wire harness penetrates through the second part of the area where the power battery is located and is located between the front floor and the power battery. The pipeline penetrates through the third part of the area where the power battery is located and is located between the front floor and the power battery. By changing the positions of the middle exhaust pipeline, the high-voltage wiring harness and the pipeline, the upward protruding amplitude of the upper floor is greatly reduced, so that the automobile bottom space occupied by the upper floor is reduced, and the range-extended automobile bottom space is fully utilized.

Description

Technical Field

[0001] The utility model relates to the field of automobile bottom layout, in particular to a bottom layout structure of an extended-range automobile and an extended-range automobile. Background Art

[0002] With the rapid development of new energy vehicles, people have higher and higher requirements for the range of new energy vehicles (pure electric). In order to solve the problem of the range of new energy vehicles, extended-range vehicles came into being.

[0003] An extended-range electric vehicle (EREV) is a plug-in series hybrid vehicle (PHEV) powered by pure electric power. Its powertrain consists of a battery system, a powertrain system, a range extender, and a vehicle control system. EREVs are typically developed by modifying pure electric vehicles or traditional fuel-powered vehicles. The entire vehicle includes both the pure electric system and the range extender system, with the lower body housing both the three-electric system and the engine system.

[0004] Existing extended-range electric vehicles (EREVs) have their exhaust duct located in the middle of the vehicle's underbody, running from front to rear, over the power battery. To minimize the impact of heat from the exhaust duct on the power battery, the front floor is raised above the center of the power battery to provide sufficient space for the exhaust duct, increasing the floor space occupied by the vehicle. Utility Model Content

[0005] The purpose of the utility model is to provide a bottom layout structure of an extended-range vehicle and an extended-range vehicle, which can fully utilize the space at the bottom of the extended-range vehicle and reduce the height of the upper bottom plate bulge and the space occupied.

[0006] The embodiment of the present utility model is achieved as follows:

[0007] In a first aspect, an extended-range vehicle bottom layout structure according to an embodiment of the present application comprises: a front floor, a power battery, a left door sill, a right door sill, a middle exhaust duct, a high-voltage wiring harness and a pipeline; the front floor is located at the bottom of the vehicle, the left door sill and the right door sill are respectively arranged at the bottom of the front floor and located on the left and right sides of the vehicle, the power battery is located directly below the front floor and is connected to the left and right door sills on both sides respectively; the middle exhaust duct, the high-voltage wiring harness and the pipeline are respectively extended along the front and rear directions of the vehicle, and the middle exhaust duct passes through a first portion of the area where the power battery is located and is arranged on the left door sill or the right door sill and the first portion is located below the power battery, and the high-voltage wiring harness passes through a second portion of the area where the power battery is located and is located between the front floor and the power battery, and the pipeline passes through a third portion of the area where the power battery is located and is located between the front floor and the power battery.

[0008] In a possible embodiment, the layout structure also includes an engine, an exhaust pipe, a front muffler and a rear muffler; the engine is used to be arranged in the vehicle's engine compartment and is located on the side of the power battery close to the front of the vehicle, and one end of the exhaust pipe is connected to the engine; the front muffler is located on the side of the power battery close to the front of the vehicle, and the front muffler is respectively connected to the other end of the exhaust pipe and one end of the middle exhaust pipe; the rear muffler is located on the side of the power battery close to the rear of the vehicle, and the other end of the middle exhaust pipe is connected to the rear muffler.

[0009] In a possible embodiment, the layout structure also includes a generator, a front drive motor, a rear drive motor, a front subframe and a rear subframe; the generator is arranged in the engine compartment and is located on the side of the power battery close to the front of the vehicle, the front subframe is located on the side of the power battery close to the front of the vehicle, and the front drive motor is located directly above the front subframe; the rear subframe is located on the side of the power battery close to the rear of the vehicle, and the rear drive motor is located directly above the rear subframe.

[0010] In a possible embodiment, the layout structure further includes a left front longitudinal beam, a right front longitudinal beam, a left rear longitudinal beam and a right rear longitudinal beam; the left front longitudinal beam and the right front longitudinal beam are arranged at the bottom of both sides of the front of the vehicle, and the front subframe is located between the left front longitudinal beam and the right front longitudinal beam and is connected to the two; the left rear longitudinal beam and the right rear longitudinal beam are arranged at the bottom of both sides of the rear of the vehicle, and the rear subframe is located between the left rear longitudinal beam and the right rear longitudinal beam and is connected to the two.

[0011] In a possible embodiment, the layout structure further includes a carbon canister and a fuel tank; the carbon canister and the fuel tank are arranged between the power battery and the rear subframe, and the carbon canister and the fuel tank are respectively arranged side by side along the width direction of the bottom of the vehicle; the engine is connected to the fuel tank through the pipeline.

[0012] In a possible embodiment, the layout structure also includes a front drive shaft, a rear drive shaft, a left front wheel, a right front wheel, a left rear wheel and a right rear wheel; the front drive shaft is connected to the front drive motor and its two ends are respectively connected to the left front wheel and the right front wheel, and the rear drive shaft is connected to the rear drive motor and its two ends are respectively connected to the left rear wheel and the right rear wheel.

[0013] In a possible embodiment, the layout structure also includes an air spring system, which includes a left air tank, a right air tank and an air supply unit; the left air tank and the right air tank are respectively arranged on both sides of the bottom of the rear of the vehicle, and the air supply unit is connected to the left air tank and the right air tank, and the air supply unit is arranged on the left rear longitudinal beam or the right rear longitudinal beam.

[0014] In a possible embodiment, the layout structure also includes a front anti-collision beam and a rear anti-collision beam; the front anti-collision beam is arranged on the front of the vehicle and the inner side is respectively connected to the left front longitudinal beam and the right front longitudinal beam; the rear anti-collision beam is arranged on the rear of the vehicle and the inner side is respectively connected to the left rear longitudinal beam and the right rear longitudinal beam.

[0015] In a possible embodiment, the front subframe includes a first crossbeam, a second crossbeam and a third crossbeam, and the first crossbeam, the second crossbeam and the third crossbeam are arranged in sequence at the bottom of the vehicle along the length direction of the vehicle; the front drive motor is located on the first crossbeam and the second crossbeam, and the engine and the generator are respectively located on the second crossbeam and the third crossbeam.

[0016] In a second aspect, an extended-range vehicle according to an embodiment of the present application has a bottom portion that adopts the above-described layout structure.

[0017] The beneficial effect of this embodiment of the utility model is that by swapping the positions of the central exhaust duct and the high-voltage wiring harness and piping, namely placing the central exhaust duct on one side of the power battery and the high-voltage wiring harness and piping between the power battery and the upper floor, the upper floor only needs a small upward protrusion to accommodate the high-voltage wiring harness and piping. Compared to a layout where the central exhaust duct is placed between the power battery and the upper floor, the upward protrusion of the upper floor is significantly reduced, thereby reducing the space under the vehicle occupied by the upper floor, effectively utilizing the space under the vehicle's lower floor of the extended-range vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 This is a bottom view of the layout structure of the extended-range vehicle according to the embodiment of the utility model. Figure 1 ;

[0020] Figure 2 This is a bottom view of the layout structure of the extended-range vehicle according to the embodiment of the utility model. Figure 2 ,in, Figure 2 Relative to Figure 1 The front and rear propeller shafts are labeled;

[0021] Figure 3This is a bottom view of the layout structure of the extended-range vehicle according to the embodiment of the utility model. Figure 3 ;

[0022] Figure 4 This is a side view schematic diagram of the engine position of the bottom layout structure of the range-extended vehicle according to an embodiment of the present utility model;

[0023] Figure 5 This is a side view schematic diagram of the fuel tank position of the bottom layout structure of the range-extended vehicle according to an embodiment of the present utility model;

[0024] Figure 6 It is a vertical cross-sectional diagram of the bottom layout structure of the extended-range vehicle along the length direction of the vehicle according to an embodiment of the utility model.

[0025] Icons: 1. Front anti-collision beam; 2. Cooling module; 3. Left front longitudinal beam; 4. Right front longitudinal beam; 5. Generator; 6. Engine; 7. Front subframe; 701. First crossbeam; 702. Second crossbeam; 703. Third crossbeam; 8. Front drive motor; 9. Front muffler; 10. Center exhaust pipe; 11. Power battery; 12. Left door sill; 13. Right door sill; 14. Carbon canister; 15. Fuel tank; 16. Rear subframe; 16 01. Fourth crossbeam; 1602. Fifth crossbeam; 17. Rear drive motor; 18. High-voltage wiring harness; 19. Left gas tank; 20. Right gas tank; 21. Air supply unit; 22. Rear anti-collision beam; 23. Rear muffler; 24. Left rear longitudinal beam; 25. Right rear longitudinal beam; 26. Rear floor; 27. Front floor; 28. Middle floor; 29. Wheel; 30. Front drive shaft; 31. Front panel; 32. Rear drive shaft; 33. Pipeline. DETAILED DESCRIPTION

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0028] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0029] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0030] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0031] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] refer to Figures 1 to 6As shown, an embodiment of the present application shows an extended-range vehicle underbody layout structure, including: a front floor panel 27, a power battery 11, a left side sill 12, a right side sill 13, a center exhaust duct 10, a high-voltage wiring harness 18, and a pipe 33. The front floor panel 27 is located at the bottom of the vehicle. The left and right side sills 12 and 13 are located at the bottom of the front floor panel 27 and on the left and right sides of the vehicle, respectively. The power battery 11 is located directly below the front floor panel 27 and connected to the left and right side sills 12 and 13 on both sides. The center exhaust duct 10, the high-voltage wiring harness 18, and the pipe 33 are arranged along the front-to-back direction of the vehicle. The first portion of the center exhaust duct 10, which passes through the area where the power battery 11 is located, is located on the left or right side sill 12, 13 and is located below the power battery 11. The second portion of the high-voltage wiring harness 18, which passes through the area where the power battery 11 is located, is located between the front floor panel 27 and the power battery 11. The third portion of the pipe 33, which passes through the area where the power battery 11 is located, is located between the front floor panel 27 and the power battery 11.

[0033] In the above embodiment, the high-temperature exhaust gas flowing within the middle exhaust duct 10 significantly impacts surrounding components (such as the power battery 11). However, the lower temperature of the high-voltage wiring harness 18 and the pipes 33 minimizes the thermal impact. By swapping the positions of the middle exhaust duct 10, the high-voltage wiring harness 18, and the pipes 33—that is, placing the middle exhaust duct 10 on one side of the power battery 11 and the high-voltage wiring harness 18 and the pipes 33 between the power battery 11 and the upper floor panel 27—the middle exhaust duct 10 is positioned on the side of the power battery 11, while the high-voltage wiring harness 18 and the pipes 33 are positioned between the power battery 11 and the upper floor panel 27. Because the high-voltage wiring harness 18 and the pipes 33 have a lesser thermal impact, the upper floor panel 27 only needs a smaller upward rise to accommodate them. Compared to a layout where the middle exhaust duct 10 is positioned between the power battery 11 and the upper floor panel 27, the upward rise of the upper floor panel 27 is significantly reduced, thereby reducing the space occupied by the upper floor panel 27 under the vehicle, effectively utilizing the space under the vehicle's lower floor.

[0034] The bottom layout structure of the extended-range vehicle in an embodiment of the present application also includes an engine 6, an exhaust pipe, a front muffler 9, and a rear muffler 23. The engine 6 is arranged in the vehicle's cabin and is located on the side of the power battery 11 close to the front of the vehicle. One end of the exhaust pipe is connected to the engine 6. The front muffler 9 is located on the side of the power battery 11 close to the front of the vehicle, and the front muffler 6 is respectively connected to the other end of the exhaust pipe and one end of the middle exhaust pipe 10. The rear muffler 23 is located on the side of the power battery 11 close to the rear of the vehicle. The other end of the middle exhaust pipe 10 is connected to the rear muffler 23.

[0035] In combination with the above embodiment, the engine 6 is arranged inside the engine compartment and is connected to the front muffler 9 through the exhaust pipe arranged at the bottom of the front of the vehicle. At the same time, the middle exhaust pipe 10 is respectively connected to the front muffler 9 and the rear muffler 23, thereby fully eliminating the working noise of the engine 6 and improving the vehicle driving experience.

[0036] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes a generator 5, a front drive motor 8, a rear drive motor 17, a front subframe 7, and a rear subframe 16. The generator 5 is located within the engine compartment and is positioned on the front side of the power battery 11. The front subframe 7 is located on the front side of the power battery 11, and the front drive motor 8 is located directly above the front subframe 7. The rear subframe 16 is located on the rear side of the power battery 11, and the rear drive motor 17 is located directly above the rear subframe 16.

[0037] In conjunction with the above embodiment, the generator 5 and engine 6 together form a range extender and are placed horizontally within the vehicle's cabin. The front drive motor 8 and rear drive motor 17 are respectively positioned relative to the front subframe 7 and rear subframe 16, achieving a reasonable distribution of front and rear drive.

[0038] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes a left front longitudinal beam 3, a right front longitudinal beam 4, a left rear longitudinal beam 24, and a right rear longitudinal beam 25. The left front longitudinal beam 3 and the right front longitudinal beam 4 are arranged at the bottom of the vehicle on both sides of the front, and the front subframe 7 is located between and connected to the left front longitudinal beam 3 and the right front longitudinal beam 4. The left rear longitudinal beam 24 and the right rear longitudinal beam 25 are arranged at the bottom of both sides of the rear, and the rear subframe 16 is located between and connected to the left and right rear longitudinal beams 24 and 25.

[0039] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes a carbon canister 14 and a fuel tank 15. The carbon canister 14 and the fuel tank 15 are disposed between the power battery 11 and the rear subframe 16, and are arranged side by side along the width of the bottom of the vehicle. The engine 6 is connected to the fuel tank 15 via a pipeline 33.

[0040] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes a front drive shaft 30, a rear drive shaft 32, and wheels 29 (left front wheel, right front wheel, left rear wheel, and right rear wheel). The front drive shaft 30 is connected to the front drive motor 8, with its left and right ends connected to the left front wheel and right front wheel, respectively. The rear drive shaft 32 is connected to the rear drive motor 17, with its left and right ends connected to the left rear wheel and right rear wheel, respectively.

[0041] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes an air spring system, which includes a left air tank 19, a right air tank 20 and an air supply unit 21. The left air tank 19 and the right air tank 20 are respectively arranged on both sides of the bottom of the rear of the vehicle, and the air supply unit 21 is connected to the left air tank 19 and the right air tank 20. The air supply unit 21 can be set to one or more according to the different shock absorption needs of the vehicle. When the air supply unit 21 is set to one, the air supply unit 21 can be set on the left rear longitudinal beam 24 or the right rear longitudinal beam 25. When the air supply unit 21 is set to two, at least one air supply unit 21 can be installed on the left rear longitudinal beam 21 and the right rear longitudinal beam 25, and the left air tank 19 and the right air tank 20 are respectively connected to the corresponding air supply units 21.

[0042] The bottom layout structure of the extended-range vehicle in the embodiment of the present application also includes a front anti-collision beam 1 and a rear anti-collision beam 22; the front anti-collision beam 1 is arranged on the front of the vehicle and the inner side is respectively connected to the left front longitudinal beam 3 and the right front longitudinal beam 4; the rear anti-collision beam 22 is arranged on the rear of the vehicle and the inner side is respectively connected to the left rear longitudinal beam 24 and the right rear longitudinal beam 25.

[0043] In the bottom layout structure of the extended-range vehicle according to the embodiment of the present application, the front subframe 7 includes a first crossbeam 701, a second crossbeam 702, and a third crossbeam 703. The first crossbeam 701, the second crossbeam 702, and the third crossbeam 703 are sequentially arranged at the bottom of the vehicle along the length of the vehicle. The front drive motor 8 is located on the first crossbeam 701 and the second crossbeam 702, while the engine 6 and the generator 5 are located on the second crossbeam 702 and the third crossbeam 703, respectively.

[0044] In summary, the range extender (engine 6 and generator 5) is arranged transversely within the engine compartment. The range extender and front subframe 7 are located inside the left and right front longitudinal beams 3 and 4. The power battery pack 11 is located behind the front subframe 7 and in front of the carbon canister 14 and fuel tank 15. The carbon canister 14 and fuel tank 15 are arranged side by side in front of the rear subframe 16. The rear drive motor 17 is located in the middle and upper part of the rear subframe 16, and the rear muffler 23 is located at the rear of the rear subframe 16. The rear subframe 16 is located inside the left and right rear longitudinal beams 24 and 25. The rear drive motor 17 is mounted on the fourth and fifth cross members 1601 and 1602 of the rear subframe 16.

[0045] The front drive shaft 30 passes through the front drive motor 8 and is connected to the left and right front tires 29. The rear drive shaft 32 passes through the rear drive motor 17 and is connected to the left and right rear tires 29. The left air tank 19 and the right air tank 20 are arranged on both sides of the rear floor 26. The air supply unit 21 is arranged on the inner side of the left air tank 19, at the lower part of the left rear longitudinal beam 24. The cooling module 2 is arranged at the rear of the front anti-collision beam 1 and in front of the engine 6. The upper part of the front subframe 7 and the front part of the front drive motor 8, the exhaust pipe is connected from the engine 6 and crosses the crossbeam 703 of the front subframe 7. The front muffler 9, the middle exhaust pipe 10, and finally reaches the rear muffler 23. The middle exhaust pipe 10 is arranged on one side of the power battery pack 11. The high-voltage wiring harness 18 and the pipe 33 are arranged in the lower middle part of the front floor 27.

[0046] The front subframe 7 comprises a first crossbeam 701, a second crossbeam 702, and a third crossbeam 703. The front drive motor 8 is mounted above the second and third crossbeams 702, 703. The range extender is located above the first and second crossbeams 701, 702, and in front of the front drive motor 8. By rationally positioning the various components under the vehicle, the lower body layout of the range-extended electric vehicle effectively ensures overall vehicle performance and fully utilizes the space under the vehicle.

[0047] Based on the same concept, an extended-range vehicle corresponding to the bottom layout structure of the extended-range vehicle is also provided in the embodiments of the present application. Since the principle of solving the problem by the extended-range vehicle in the embodiments of the present application is similar to the above-mentioned bottom layout structure of the extended-range vehicle in the embodiments of the present application, the implementation of the extended-range vehicle can refer to the implementation of the bottom layout structure of the extended-range vehicle, and the repeated parts will not be repeated.

[0048] The present embodiment of the present application provides an extended-range electric vehicle (ERV) with the aforementioned underbody layout. By swapping the positions of the central exhaust duct 10 and the high-voltage wiring harness 18 and pipes 33, the central exhaust duct 10 is positioned on one side of the power battery 11, while the high-voltage wiring harness 18 and pipes 33 are positioned between the power battery 11 and the upper floor panel 27. Because the high-voltage wiring harness 18 and pipes 33 have minimal thermal impact, the upper floor panel 27 only requires a small upward protrusion to accommodate them. Compared to a layout where the central exhaust duct 10 is positioned between the power battery 11 and the upper floor panel 27, the upward protrusion of the upper floor panel 27 is significantly reduced, thereby reducing the space occupied by the upper floor panel 27 under the vehicle, effectively utilizing the underbody space of the ERV. Furthermore, by rationally arranging the locations of the various components under the vehicle, the underbody layout of the ERV effectively ensures overall vehicle performance and fully utilizes the underbody space of the vehicle.

[0049] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A bottom layout structure of an extended-range vehicle, characterized in that: include: Front floor, power battery, left and right door sills, center exhaust pipe, high-voltage wiring harness and pipes; The front floor is located at the bottom of the car, the left door sill and the right door sill are respectively arranged at the bottom of the front floor and located on the left and right sides of the car, the power battery is located directly below the front floor and is connected to the left door sill and the right door sill on both sides; the middle exhaust duct, the high-voltage wiring harness and the pipeline are respectively extended along the front and rear directions of the car, and the first part of the middle exhaust duct passing through the area where the power battery is located is arranged on the left door sill or the right door sill and the first part is located below the power battery, and the second part of the high-voltage wiring harness passing through the area where the power battery is located is located between the front floor and the power battery, and the third part of the pipeline passing through the area where the power battery is located is located between the front floor and the power battery.

2. The bottom layout structure of the extended-range vehicle according to claim 1 is characterized in that: The layout structure also includes an engine, an exhaust pipe, a front muffler and a rear muffler; the engine is used to be arranged in the vehicle's engine compartment and is located on the side of the power battery close to the front of the vehicle, and one end of the exhaust pipe is connected to the engine; the front muffler is located on the side of the power battery close to the front of the vehicle, and the front muffler is respectively connected to the other end of the exhaust pipe and one end of the middle exhaust pipe; the rear muffler is located on the side of the power battery close to the rear of the vehicle, and the other end of the middle exhaust pipe is connected to the rear muffler.

3. The bottom layout structure of the extended-range vehicle according to claim 2, characterized in that: The layout structure further includes a generator, a front drive motor, a rear drive motor, a front subframe, and a rear subframe; the generator is arranged in the engine compartment and is located on the side of the power battery close to the front of the vehicle, the front subframe is located on the side of the power battery close to the front of the vehicle, and the front drive motor is located directly above the front subframe; The rear subframe is located on a side of the power battery close to the rear of the vehicle, and the rear drive motor is located directly above the rear subframe.

4. The bottom layout structure of the extended-range vehicle according to claim 3 is characterized in that: The layout structure also includes a left front longitudinal beam, a right front longitudinal beam, a left rear longitudinal beam and a right rear longitudinal beam; the left front longitudinal beam and the right front longitudinal beam are arranged at the bottom of both sides of the front of the vehicle, and the front subframe is located between the left front longitudinal beam and the right front longitudinal beam and is connected to the two; the left rear longitudinal beam and the right rear longitudinal beam are arranged at the bottom of both sides of the rear of the vehicle, and the rear subframe is located between the left rear longitudinal beam and the right rear longitudinal beam and is connected to the two.

5. The bottom layout structure of the extended-range vehicle according to claim 4 is characterized in that: The layout structure also includes a carbon canister and a fuel tank; the carbon canister and the fuel tank are arranged between the power battery and the rear subframe, and the carbon canister and the fuel tank are arranged side by side along the width direction of the bottom of the vehicle; the engine is connected to the fuel tank through the pipeline.

6. The bottom layout structure of the extended-range vehicle according to claim 5, characterized in that: The layout structure also includes a front drive shaft, a rear drive shaft, a left front wheel, a right front wheel, a left rear wheel and a right rear wheel; the front drive shaft is connected to the front drive motor and its two ends are respectively connected to the left front wheel and the right front wheel, and the rear drive shaft is connected to the rear drive motor and its two ends are respectively connected to the left rear wheel and the right rear wheel.

7. The bottom layout structure of the extended-range vehicle according to claim 4, characterized in that: The layout structure also includes an air spring system, which includes a left air tank, a right air tank and an air supply unit; the left air tank and the right air tank are respectively arranged on both sides of the bottom of the rear of the vehicle, and the air supply unit is connected to the left air tank and the right air tank, and the air supply unit is arranged on the left rear longitudinal beam or the right rear longitudinal beam.

8. The bottom layout structure of the extended-range vehicle according to claim 4, characterized in that: The layout structure also includes a front anti-collision beam and a rear anti-collision beam; the front anti-collision beam is arranged on the front of the vehicle and the inner side is respectively connected to the left front longitudinal beam and the right front longitudinal beam; the rear anti-collision beam is arranged on the rear of the vehicle and the inner side is respectively connected to the left rear longitudinal beam and the right rear longitudinal beam.

9. The bottom layout structure of the extended-range vehicle according to claim 3, characterized in that: The front subframe includes a first crossbeam, a second crossbeam and a third crossbeam, and the first crossbeam, the second crossbeam and the third crossbeam are arranged in sequence at the bottom of the vehicle along the length direction of the vehicle; the front drive motor is located on the first crossbeam and the second crossbeam, and the engine and the generator are respectively located on the second crossbeam and the third crossbeam.

10. An extended-range vehicle, characterized in that: The bottom of the automobile adopts the layout structure according to any one of claims 1 to 9.

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