Power assembly and vehicle
By integrating the horizontally opposed engine and drive motor vertically and placing the exhaust system and engine in the same compartment, the problems of low powertrain integration and insufficient front compartment space are solved, achieving efficient space utilization and improved handling stability.
Patent Information
- Application Number
- CN202520598082.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-31
AI Technical Summary
In existing range-extended electric powertrains, the engine and drive motor are generally arranged front and rear or separately, resulting in low integration, large space occupation, and insufficient utilization of the front compartment space.
The engine and drive motor are arranged in a horizontally opposed configuration, with the engine and drive components fixedly connected along the vehicle's height. The exhaust system is located in the same compartment as the engine, and the intake and exhaust systems are highly integrated. The muffler is located on the front compartment of the vehicle body or on the subframe, reducing space occupation.
It improves the integration and space utilization of the powertrain, reduces assembly complexity, enhances the vehicle's NVH performance and handling stability, and increases the space utilization of the front compartment.
Smart Images
Figure CN223890816U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of vehicle technology, and more particularly to a powertrain and a vehicle. Background Technology
[0002] In related technologies, in the powertrain of existing automotive range-extended powertrains, the engine and drive motor are generally arranged front and rear or separately, resulting in low integration and a large space occupation, leading to low utilization of the front compartment space. For models with limited front compartment space, the entire powertrain layout becomes difficult. Therefore, the low integration and unreasonable layout of existing automotive range-extended powertrains result in insufficient utilization of the front compartment space. Utility Model Content
[0003] The purpose of this application is to provide a powertrain and vehicle that aims to solve the problems of low powertrain integration and insufficient utilization of the front compartment space due to unreasonable powertrain layout.
[0004] In a first aspect, a powertrain for a vehicle is provided, comprising:
[0005] engine;
[0006] A drive assembly, wherein the engine is connected to the drive assembly;
[0007] An exhaust system, which is located in the same compartment as the engine.
[0008] In this embodiment, the powertrain is used in a vehicle and includes an engine, a drive assembly, and an exhaust system. The engine and drive assembly are connected, and the exhaust system is housed in the same compartment as the engine. Thus, the engine and drive assembly are arranged and fixedly connected together along the height of the vehicle, resulting in high integration and better space utilization.
[0009] Optionally, the projection of the engine in the height direction of the vehicle is located inside the projection of the drive assembly in the height direction of the vehicle.
[0010] Optionally, the drive assembly includes a drive motor disposed on the side of the engine closer to the vehicle chassis.
[0011] Optionally, the powertrain also includes a generator connected to the engine and positioned at the same horizontal level.
[0012] Optionally, the powertrain may further include a generator controller, which is connected to the generator and positioned at the same horizontal level.
[0013] Optionally, the engine controller is integrated inside the generator or within the motor controller of the drive motor.
[0014] Optionally, the exhaust system is connected to the engine.
[0015] Optionally, the exhaust system includes a three-way catalytic converter and a muffler, the three-way catalytic converter being disposed on the side of the engine away from the drive assembly.
[0016] Optionally, the three-way catalytic converter is located on the upper side of the engine, and the muffler is located on the front or lower side of the engine.
[0017] Optionally, the muffler further includes a first exhaust muffler and a second exhaust muffler, the first exhaust muffler and the second exhaust muffler being disposed on the side of the engine away from the generator.
[0018] Optionally, the first exhaust muffler occupies less of the space in the horizontal direction of the vehicle than the second exhaust muffler occupies less of the space in the horizontal direction of the vehicle.
[0019] Optionally, the muffler further includes a third exhaust muffler disposed on the side of the drive assembly away from the second exhaust muffler.
[0020] Optionally, the third exhaust muffler is fixed to the front body or front subframe of the vehicle.
[0021] Optionally, the exhaust gas discharged from the engine passes sequentially through the first exhaust muffler, the second exhaust muffler, and the third exhaust muffler.
[0022] Optionally, the exhaust system further includes an exhaust pipe integrated on the side of the drive motor away from the engine.
[0023] Optionally, the exhaust pipe connects the second exhaust muffler and the third exhaust muffler.
[0024] Optionally, the exhaust system may also include a flexible pipe integrated on the side of the drive motor away from the engine.
[0025] Optionally, the exhaust pipe is connected to the second exhaust muffler via the flexible pipe.
[0026] Optionally, there are two exhaust pipes, which are located on both sides of the drive assembly.
[0027] Optionally, the exhaust system may also include an air filter integrated into the engine.
[0028] Optionally, the engine is a horizontally opposed engine.
[0029] Secondly, a vehicle is also provided, the vehicle including the powertrain described in any of the above embodiments.
[0030] Optionally, the powertrain is located in the front compartment of the vehicle.
[0031] Optionally, the powertrain is mounted on the longitudinal beams or cross beams of the vehicle. Attached Figure Description
[0032] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0033] Figure 1 This is a structural diagram of a vehicle provided according to some embodiments;
[0034] Figure 2 This is a structural diagram of a powertrain provided according to some embodiments;
[0035] Figure 3 This is a structural diagram of an intake system provided according to some embodiments;
[0036] Figure 4 This is a structural diagram of an exhaust system provided according to some embodiments.
[0037] Figure label:
[0038] 100. Powertrain; 1. Horizontally opposed engine; 2. Intake system; 3. Generator; 4. Generator controller; 5. Drive shaft beam; 7. Drive motor; 8. Exhaust system; 9. Air filter; 10. Air filter outlet pipe; 11. Air filter intake manifold; 12. Intake manifold mounting flange; 13. Three-way catalytic converter; 14. Exhaust manifold mounting flange; 15. First exhaust muffler; 16. Second exhaust muffler; 17. Flexible pipe; 18. Exhaust piping; 19. Third exhaust muffler; 20. Engine; 21. Drive assembly; 200. Vehicle. Detailed Implementation
[0039] In the embodiments of this application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" 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 with "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of that feature.
[0040] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0041] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.
[0042] In the embodiments of this application, "parallel," "perpendicular," and "equal" include the described situation and situations similar to the described situation, the range of which is within an acceptable deviation range, said acceptable deviation range being determined by those skilled in the art taking into account the measurement under discussion and the error associated with the measurement of a particular quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range for approximate parallelism may be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range for approximate perpendicularity may also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range for approximate equality may be, for example, a difference between the two equals being less than or equal to 5% of either one.
[0043] Please see Figures 1 to 4 In one aspect, the present application provides a powertrain 100 for a vehicle 200. The powertrain 100 includes an engine 20, a drive assembly 21 and an exhaust system 8. The engine 20 and the drive assembly 21 are connected, and the exhaust system 8 and the engine 20 are housed in the same compartment.
[0044] In this embodiment, the powertrain 100 is used in the vehicle 200. The powertrain 100 includes an engine 20, a drive assembly 21, and an exhaust system 8. The engine 20 and the drive assembly 21 are connected, and the exhaust system 8 is located in the same compartment as the engine 20. In this way, the engine 20 and the drive assembly 21 are arranged and fixedly connected together along the height direction of the vehicle 200, resulting in a high degree of integration and better space utilization.
[0045] This application provides a powertrain 100 for use in a vehicle 200. The powertrain 100 includes an engine 20 and a drive assembly 21. The drive assembly 21 is fixedly connected to the engine 20. The engine 20 and the drive assembly 21 are distributed along the height direction of the vehicle 200. The projection of the engine 20 in the height direction of the vehicle 200 is located inside the projection of the drive assembly 21 in the height direction of the vehicle 200.
[0046] In this embodiment, the powertrain 100 is used in the vehicle 200. The powertrain 100 includes an engine 20 and a drive assembly 21. The drive assembly 21 is fixedly connected to the engine 20. The engine 20 and the drive assembly 21 are distributed along the height direction of the vehicle 200, and the projection of the engine 20 in the height direction of the vehicle 200 is located inside the projection of the drive assembly 21 in the height direction of the vehicle 200. In this way, the engine 20 and the drive assembly 21 are arranged and fixedly connected together along the height direction of the vehicle 200, resulting in a high degree of integration and better space utilization.
[0047] This application also provides a vehicle 200, which includes the powertrain 100 of the embodiments of this application.
[0048] In this application embodiment, the specific form of vehicle 200 is not limited to meet different needs. For example, vehicle 200 can be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, a range-extended electric vehicle, etc. Vehicle 200 can also be a sedan, truck, bus, lorry, trailer, etc. Powertrain 100 can be applied to hybrid vehicles, range-extended electric vehicles, or pure electric vehicles. By adjusting the specific configuration of engine 20 and drive assembly 21, the power requirements of different vehicle models can be met. For example, in a range-extended electric vehicle, engine 20 can be a horizontally opposed engine 1, and drive assembly 21 can be a generator 3, both arranged along the height direction to form a highly efficient range-extending system. In this application embodiment, vehicle 200 is described as a range-extended vehicle.
[0049] Specifically, the powertrain 100 includes an engine 20 and a drive assembly 21, which is tightly connected to the engine 20 by a fixed connection method (such as bolting, welding, or integral casting). The engine 20 and the drive assembly 21 are distributed along the height direction (i.e., the vertical direction) of the vehicle 200, and the projection of the engine 20 in the height direction of the vehicle 200 is completely located within the projection of the drive assembly 21 in the height direction of the vehicle 200. This arrangement allows the two drive assemblies to overlap in the vertical direction, thereby minimizing the space occupied by the powertrain 100 in the longitudinal and lateral directions of the vehicle 200.
[0050] Furthermore, the engine 20 and drive assembly 21 are distributed and fixedly connected along the height direction, forming a compact integral structure. This not only reduces the number of parts but also lowers assembly complexity and improves the overall reliability of the powertrain 100. By overlapping the projections of the two drive assemblies, the volume of the powertrain 100 is optimized, making it particularly suitable for the front or rear compartment layout of a space-constrained vehicle 200.
[0051] Furthermore, since the engine 20 and drive assembly 21 are fixedly connected and distributed along the height direction, their vibrations and noises can cancel each other out, thereby improving the NVH (noise, vibration, and harshness) performance of the vehicle 200.
[0052] Optionally, the projection of the engine 20 in the height direction of the vehicle 200 is located inside the projection of the drive assembly 21 in the height direction of the vehicle 200.
[0053] Optionally, the drive assembly 21 includes a drive motor 7, which is located on the side of the engine 20 closer to the chassis of the vehicle 200.
[0054] Optionally, the powertrain 100 also includes a generator 3, which is connected to the engine 20 and positioned at the same horizontal level.
[0055] Optionally, the powertrain 100 also includes a generator controller 4, which is connected to the generator 3 and positioned at the same horizontal level.
[0056] Optionally, the engine controller is integrated inside the generator 3 or within the motor controller of the drive motor 7.
[0057] Optionally, the exhaust system 8 is connected to the engine 20.
[0058] Optionally, the exhaust system 8 includes a three-way catalytic converter 13 and a muffler, with the three-way catalytic converter 13 located on the side of the engine 20 away from the drive assembly 21.
[0059] Optionally, the three-way catalytic converter 13 is located on the upper side of the engine 20, and the muffler is located on the front or lower side of the engine 20.
[0060] Optionally, the muffler also includes a first exhaust muffler 15 and a second exhaust muffler 16, which are located on the side of the engine 20 away from the generator 3.
[0061] Optionally, the first exhaust muffler 15 occupies less space in the horizontal direction of the vehicle 200 than the second exhaust muffler 16 occupies less space in the horizontal direction of the vehicle 200.
[0062] Optionally, the muffler may also include a third exhaust muffler 19, which is located on the side of the drive assembly 21 away from the second exhaust muffler 16.
[0063] Optionally, the third exhaust muffler 19 is fixed to the front body or front subframe of the vehicle 200.
[0064] Optionally, the exhaust gas from the engine 20 passes sequentially through the first exhaust muffler 15, the second exhaust muffler 16, and the third exhaust muffler 19.
[0065] Optionally, the exhaust system 8 also includes an exhaust pipe 18, which is integrated on the side of the drive motor 7 away from the engine 20.
[0066] Optionally, the exhaust pipe 18 connects to the second exhaust muffler 16 and the third exhaust muffler 19.
[0067] Optionally, the exhaust system 8 also includes a flexible pipe 17, which is integrated on the side of the drive motor 7 away from the engine 20.
[0068] Optionally, the exhaust pipe 18 is connected to the second exhaust muffler 16 via a flexible pipe 17.
[0069] Optionally, there are two exhaust pipes 18, which are located on both sides of the drive assembly 21.
[0070] Optionally, the exhaust system 8 also includes an air filter 9, which is integrated into the engine 20.
[0071] Optionally, engine 20 is a horizontally opposed engine 1.
[0072] Thus, the cylinders of the horizontally opposed engine 1 are arranged horizontally opposite each other, and the pistons move in the horizontal direction. This results in a lower overall height of the engine 20, and the cylinders on the left and right sides are symmetrically arranged with the pistons moving in opposite directions. The engine 20 is generally flat, low in height, and wide, to leave sufficient space for the drive assembly 21 and reduce the overall height of the powertrain 100.
[0073] In related technologies, the engine and motor are arranged front and rear. However, due to limited space in the front compartment, this type of powertrain cannot be installed. This restricts the space in the entire front compartment, severely compressing the space for other components. The low integration of the powertrain and the unreasonable arrangement of the powertrain result in insufficient utilization of the front compartment space.
[0074] In this embodiment, the horizontally opposed engine 1 and drive motor 7 are integrated vertically, fully utilizing the low height of the horizontally opposed engine 1, making it suitable for vehicles with limited front compartment space. Furthermore, the flat structure of the horizontally opposed engine 1 allows it to be mounted at a lower position on the vehicle 200, lowering the vehicle 200's center of gravity in conjunction with the drive assembly 21. This significantly improves the vehicle 200's handling stability and cornering performance, and reduces body roll during high-speed driving or sharp turns.
[0075] Optionally, the powertrain 100 is located in the front compartment of the vehicle 200.
[0076] Optionally, the powertrain 100 is mounted on the longitudinal or transverse beams of the vehicle 200.
[0077] Thus, the generator controller 4, generator 3, and engine 20 are positioned at the same horizontal level, all above the drive motor 7, allowing for effective integration and improved space utilization.
[0078] Specifically, the drive assembly 21 may optionally include a drive motor 7, which is positioned on the side of the engine 20 closer to the chassis of the vehicle 200. This arrangement makes full use of the space under the vehicle 200 while leaving more space above for other components (such as the battery pack or electronic control system). The close proximity of the drive motor 7 to the chassis also helps to lower the center of gravity of the vehicle 200, thereby improving the handling stability and driving safety of the vehicle 200. The engine 20 and the drive motor 7 are tightly integrated through a fixed connection (such as a bolted connection or an integrated design) to form a highly integrated powertrain 100. This design reduces the number of parts, lowers assembly complexity, and improves the reliability and efficiency of the powertrain 100.
[0079] Furthermore, in the embodiments of this application, the generator 3 is connected to the engine 20 and positioned at the same horizontal level, and the generator controller 4 is connected to the generator 3 and positioned at the same horizontal level. This design allows for a high degree of integration of the generator 3, generator controller 4, and engine 20 at the same horizontal level, further improving space utilization and the overall efficiency of the powertrain 100.
[0080] In this application embodiment, the specific form of the flexible tube 17 is not limited. The flexible tube 17 can be a corrugated tube or a flexible tube to meet different needs.
[0081] In existing automotive range-extended powertrains, the engine and drive motor are typically arranged front-to-rear or separately, resulting in low integration and a large footprint, leading to inefficient use of the front compartment space. Furthermore, the drive, exhaust, and intake systems of these powertrains are generally arranged independently of the range extender, also exhibiting low integration and requiring significant front compartment space. For vehicles with limited front compartment space, this makes the entire powertrain layout difficult. The low integration and inefficient layout of existing automotive range-extended powertrains contribute to insufficient utilization of the front compartment space.
[0082] In this embodiment, the powertrain 100 includes: an engine 20 (in this application, the engine refers to a horizontally opposed engine 1), a generator 3, a drive motor 7, an intake system 2, and an exhaust system 8. Unlike inline engines and V-type engines, which are limited by the height of the engine 20 and are generally integrated with the drive motor 7 in a left-right or front-back direction, this range-extender powertrain 100 integrates the horizontally opposed engine 1 and the drive motor 7 vertically, giving full play to the advantage of the low height of the horizontally opposed engine 1 and making it more suitable for vehicles with relatively short front compartment space.
[0083] The exhaust system components of the extended-range powertrain 100 of this application, such as the three-way catalytic converter 13, the first exhaust muffler 15, and the second exhaust muffler 16, are all integrated on the horizontally opposed engine 1 and located in the front compartment. The third exhaust muffler 19 can be integrated and installed under the front subframe or the front compartment of the vehicle body. The exhaust pipe 18 and exhaust outlet are also located in the front compartment. Compared to traditional vehicles where the exhaust pipe 18 needs to pass under the entire floor of the vehicle, the exhaust system 8 of the extended-range powertrain 100 of this application no longer passes under the floor. This arrangement increases the space for the battery pack of the extended-range vehicle, which has a positive effect on improving the pure electric range of the extended-range vehicle, the battery, and realizing the integrated design of the vehicle body and chassis.
[0084] The main components of the intake system 2 of the horizontally opposed range extender in this application, such as the air filter 9, intake piping, and intake manifold, are all integrated into the horizontally opposed engine 1 and the drive motor 7. In conventional automobiles, the intake system 2 is typically arranged separately from the engine 20, with the air filter 9, intake piping, and intake manifold occupying a significant amount of front compartment space and exhibiting low integration. The intake system 2 of the range extender powertrain 100 in this application has high integration, occupies less front compartment space, and achieves higher utilization of front compartment space.
[0085] In summary, the powertrain 100 of this application embodiment can be an integrated arrangement structure of a range-extended powertrain 100. This structure mainly consists of a horizontally opposed engine 1, an intake system 2, a generator 3, a generator controller 4, a drive shaft, an exhaust system 8, a drive motor 7, and an exhaust system 8. The horizontally opposed engine 1 is arranged above the drive motor 7, i.e., in an up-and-down arrangement. The horizontally opposed engine 1 and the drive motor 7 are coupled together by bolts, and after coupling, they are installed on the longitudinal or transverse beams of the vehicle body via mounting bushings. The generator 3 is bolted to the output shaft of the horizontally opposed engine 1 and generates electricity as the engine 20 operates. The generator controller 4 is located next to the generator 3 and installed above the drive motor 7. Alternatively, the engine controller can be integrated inside the generator 3 or within the motor controller of the drive motor 7. The intake system 2 is mainly arranged on the horizontally opposed engine 1 and the drive motor 7. The air filter 9 component of the intake system 2 is bolted to the drive motor 7, and the intake manifold of the intake system 2 is installed at the air intakes on both sides of the horizontally opposed engine 1 via mounting flanges. The exhaust system 8 is located on the horizontally opposed engine 1 and the drive motor 7. The three-way catalytic converter 13 of the exhaust system 8 is mounted above the horizontally opposed engine 1. Part of the muffler is mounted on the side of the horizontally opposed engine 1 and the drive motor 7, while another part of the muffler, along with the exhaust pipe 18, is fixed to the front compartment body or front subframe via lifting lugs. Traditional inline and V-type engines, limited by the height of the engine 20, are typically integrated with the drive motor 7 in a left-right orientation. However, this range-extender powertrain 100 integrates the horizontally opposed engine 1 and the drive motor 7 vertically, fully utilizing the low height of the horizontally opposed engine 1. This allows for better adaptation to vehicles with limited front compartment length for the arrangement of the powertrain 100 and its accessories. The powertrain 100 can also be fixed via the drive shaft beam 5 to ensure stable mounting.
[0086] In addition, the intake system 2 consists of an air filter 9, an air filter outlet pipe 10, an air filter intake manifold 11, and an intake manifold mounting flange 12. The air filter 9 is fixed to the drive motor 7 and connected to the air filter intake manifold 11 below the horizontally opposed engine 1 via the air filter outlet pipe 10. The intake manifold mounting flange 12 is bolted to the left and right engine air intakes below the horizontally opposed engine 1. The structure of this range-extender powertrain 100 intake system 2 differs from traditional automotive intake systems 2, which are located on the vehicle body. Its innovation lies in the fact that the air filter 9 is positioned above the range extender, resulting in a compact structure and higher integration, fully utilizing the limited space in the front compartment and increasing its space utilization.
[0087] Furthermore, the exhaust system 8 mainly consists of a three-way catalytic converter 13, an exhaust manifold mounting flange 14, a first exhaust muffler 15, a second exhaust muffler 16, a flexible pipe 17, an exhaust pipe 18, and a third exhaust muffler 19. The three-way catalytic converter 13 is fixed above the horizontally opposed engine 1 via two exhaust manifold mounting flanges 14 on each side. The first exhaust muffler 15 and the second exhaust muffler 16 are located on the sides of the horizontally opposed engine 1. Because the horizontally opposed engine 1 causes vibrations in the first exhaust muffler 15 and the second exhaust muffler 16, and the exhaust pipe 18, fixed to the vehicle body, also transmits vibrations from the vehicle body, the flexible pipe 17 connects the second exhaust muffler 16 and the exhaust pipe 18 to absorb these vibrations. The third exhaust muffler 19 is mounted on the front subframe.
[0088] The exhaust system 8 of the powertrain 100 in this embodiment innovatively integrates the exhaust system 8 around the entire range-extended powertrain 100 and is located in the front compartment. All exhaust pipes 18 and exhaust mufflers do not pass under the floor, resulting in a high degree of integration and not occupying the battery space under the floor, which is conducive to maximizing the space of the range-extended vehicle battery pack.
[0089] In the description of the embodiments of this application, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.
[0090] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A powertrain (100) for use in a vehicle (200), characterized in that, include: Engine (20); Drive assembly (21), the engine (20) and the drive assembly (21) are connected; The exhaust system (8) is located in the same compartment as the engine (20).
2. The powertrain (100) according to claim 1, characterized in that, The projection of the engine (20) in the height direction of the vehicle (200) is located inside the projection of the drive assembly (21) in the height direction of the vehicle (200).
3. The powertrain (100) according to claim 2, characterized in that, The drive assembly (21) includes a drive motor (7) which is located on the side of the engine (20) closer to the chassis of the vehicle (200).
4. The powertrain (100) according to claim 3, characterized in that, The powertrain (100) also includes a generator (3), which is connected to the engine (20) and positioned at the same horizontal level.
5. The powertrain (100) according to claim 4, characterized in that, The powertrain (100) also includes a generator controller (4), which is connected to the generator (3) and positioned at the same horizontal level.
6. The powertrain (100) according to claim 5, characterized in that, The engine controller is integrated inside the generator (3) or in the motor controller of the drive motor (7).
7. The powertrain (100) according to claim 4, characterized in that, The exhaust system (8) is connected to the engine (20).
8. The powertrain (100) according to claim 7, characterized in that, The exhaust system (8) includes a three-way catalytic converter (13) and a muffler, the three-way catalytic converter (13) being disposed on the side of the engine (20) away from the drive assembly (21).
9. The powertrain (100) according to claim 8, characterized in that, The three-way catalytic converter (13) is located on the upper side of the engine (20), and the muffler is located on the front or lower side of the engine (20).
10. The powertrain (100) according to claim 9, characterized in that, The muffler also includes a first exhaust muffler (15) and a second exhaust muffler (16), which are located on the side of the engine (20) away from the generator (3).
11. The powertrain (100) according to claim 10, characterized in that, The first exhaust muffler (15) occupies less space in the horizontal direction of the vehicle (200) than the second exhaust muffler (16) occupies less space in the horizontal direction of the vehicle (200).
12. The powertrain (100) according to claim 10, characterized in that, The muffler also includes a third exhaust muffler (19), which is disposed on the side of the drive assembly (21) away from the second exhaust muffler (16).
13. The powertrain (100) according to claim 12, characterized in that, The exhaust third muffler (19) is fixed to the front body or front subframe of the vehicle (200).
14. The powertrain (100) according to claim 12, characterized in that, The exhaust gas discharged from the engine (20) passes sequentially through the first exhaust muffler (15), the second exhaust muffler (16), and the third exhaust muffler (19).
15. The powertrain (100) according to claim 12, characterized in that, The exhaust system (8) also includes an exhaust pipe (18) integrated on the side of the drive motor (7) away from the engine (20).
16. The powertrain (100) according to claim 15, characterized in that, The exhaust pipe (18) connects the second exhaust muffler (16) and the third exhaust muffler (19).
17. The powertrain (100) according to claim 16, characterized in that, The exhaust system (8) also includes a flexible pipe (17) integrated on the side of the drive motor (7) away from the engine (20).
18. The powertrain (100) according to claim 17, characterized in that, The exhaust pipe (18) is connected to the second exhaust muffler (16) through the flexible pipe (17).
19. The powertrain (100) according to claim 16, characterized in that, The number of exhaust pipes (18) is two, and the two exhaust pipes (18) are located on both sides of the drive assembly (21).
20. The powertrain (100) according to claim 8, characterized in that, The exhaust system (8) also includes an air filter (9) integrated on the engine (20).
21. The powertrain (100) according to claim 2, characterized in that, The engine (20) is a horizontally opposed engine (1).
22. A vehicle (200), characterized in that, Includes the powertrain (100) as described in any one of claims 1-21.
23. The vehicle (200) according to claim 22, characterized in that, The powertrain (100) is located in the front compartment of the vehicle (200).
24. The vehicle (200) according to claim 23, characterized in that, The powertrain (100) is mounted on the longitudinal or transverse beams of the vehicle (200).