A power system and a vehicle

Abstract

The application relates to the whole vehicle arrangement technical field, in particular to a power system and a car. The power system comprises a driving motor, a transmission mechanism, an output mechanism, a generator, an engine and a flywheel. The driving motor has a first output shaft. The transmission mechanism comprises a transmission shaft, the transmission shaft is in transmission connection with the first output shaft and the output mechanism. The engine is in transmission connection with the flywheel. The first output shaft in the orthographic projection on the first projection plane and the transmission shaft in the orthographic projection on the first projection plane are both separated from the orthographic projection of the flywheel on the first projection plane, and the first projection plane is a plane perpendicular to the length direction of the engine. The generator has an input shaft, the input shaft is in transmission connection with the flywheel, and the orthographic projection of the input shaft on the first projection plane is located in the orthographic projection of the flywheel on the first projection plane. In this way, the compactness of the engine can be improved, the width of the power system is shortened, and the volume thereof is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of whole vehicle arrangement, in particular to a power system and a vehicle. BACKGROUND

[0002] With the development of science and technology, the power source of the vehicle is also increasing. There are vehicles on the market that use motors and engines as power sources.

[0003] In addition to the power source, the power system of the vehicle also has many transmission components. The transmission components can output the power of the power source to the wheels to drive the vehicle to travel.

[0004] In the related art, the addition of the power source increases the volume of the power system. However, due to the small available space, the power system with an additional motor as a power source cannot be mounted on some vehicle models. SUMMARY

[0005] Therefore, the present application provides a power system and a vehicle to reduce the volume thereof.

[0006] Specifically, the technical scheme comprises the following:

[0007] The first aspect of the present application provides a power system, which comprises a driving motor, a transmission mechanism, an output mechanism, a generator, an engine and a flywheel. The driving motor has a first output shaft. The transmission mechanism comprises a transmission shaft, which is in transmission connection with the first output shaft and the output mechanism. The engine is in transmission connection with the flywheel. The orthographic projection of the first output shaft in a first projection plane and the orthographic projection of the transmission shaft in the first projection plane are both separated from the orthographic projection of the flywheel in the first projection plane, and the first projection plane is a plane perpendicular to the length direction of the engine. The generator has an input shaft, which is in transmission connection with the flywheel, and the orthographic projection of the input shaft in the first projection plane is located within the orthographic projection of the flywheel in the first projection plane.

[0008] Optionally, the orthographic projection of the first output shaft in a second projection plane is separated from the orthographic projection of the flywheel in the second projection plane, the second projection plane is a plane perpendicular to the width direction of the engine, and at least a part of the output mechanism is located between the first output shaft and the flywheel.

[0009] Optionally, the output mechanism comprises a second output shaft, which is in transmission connection with the transmission shaft.

[0010] Optionally, the orthographic projection of the second output shaft in the first projection plane is separated from the orthographic projection of the flywheel in the first projection plane.

[0011] Optionally, the output mechanism comprises a first output gear, the first output gear is sleeved on the second output shaft and is in driving connection with the second output shaft, the transmission mechanism comprises a first transmission gear, the first transmission gear is sleeved on the transmission shaft and is in driving connection with the transmission shaft, and the first output gear is in meshing connection with the first transmission gear.

[0012] Optionally, the transmission shaft is located on the side away from the engine on the line connecting the center of the first output shaft and the center of the second output shaft.

[0013] Optionally, the driving motor has a first input gear, the first input gear is sleeved on the first output shaft and is in driving connection with the first output shaft, the transmission mechanism has a second transmission gear, the second transmission gear is sleeved on the transmission shaft and is in driving connection with the transmission shaft, and the first input gear is in meshing connection with the second transmission gear.

[0014] Optionally, the generator has a second input gear, the second input gear is sleeved on the input shaft and is in driving connection with the input shaft, the engine has a third output shaft and a second output gear, the third output shaft is in driving connection with the second output gear and the engine, and the second input gear is in meshing connection with the second output gear.

[0015] Optionally, the generator and the driving motor are located on the same side of the flywheel.

[0016] The second aspect of the application provides an automobile, which comprises the power system as described in the above technical solution.

[0017] The technical solution provided by the embodiments of the application has at least the following beneficial effects: the engine can drive the generator to generate electricity, and the generated electricity can be used to drive the driving motor to work. The driving motor can output power to the output mechanism through the transmission mechanism to drive the output mechanism to work. The input shaft is located in the positive projection of the flywheel in the first projection plane, which is beneficial to shorten the transmission path of the engine and the generator, and thus reduce the transmission parts of the power system of the application and reduce the volume of the power system. The positive projection of the first output shaft in the first projection plane and the positive projection of the transmission shaft in the first projection plane are both separated from the positive projection of the flywheel in the first projection plane, which is beneficial to form a space for arranging the transmission mechanism and the output mechanism in the width direction of the engine by the first output shaft and the flywheel. In this way, the compactness of the engine can be improved, the width of the power system can be shortened, and the volume of the power system can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor based on these drawings.

[0019] Figure 1 A structural schematic diagram of a power system provided by an embodiment of the present application;

[0020] Figure 2 A front view schematic diagram of a power system provided by an embodiment of the present application;

[0021] Figure 3 A side view schematic diagram of a power system provided by an embodiment of the present application.

[0022] The reference signs in the drawings represent:

[0023] 1, drive motor; 11, first output shaft; 12, first input gear;

[0024] 2, transmission mechanism; 21, transmission shaft; 22, first transmission gear; 23, second transmission gear;

[0025] 3, output mechanism; 31, second output shaft; 32, first output gear;

[0026] 4, generator; 41, input shaft; 42, second input gear;

[0027] 5, engine; 51, third output shaft; 52, second output gear;

[0028] 6, flywheel.

[0029] Through the above drawings, the present application has shown explicit embodiments, and the following will have more detailed description. These drawings and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0031] The positional nouns such as “upper”, “lower”, “side” and the like in the embodiments of the present application are generally taken with reference to the drawings. Figure 1The relative relationship of the orientations shown in the figures is taken as a reference, and these orientation terms are used only for the purpose of more clearly describing the structure and the relationship between structures, and are not intended to describe absolute orientations. When the product is placed in different postures, the orientations may change, for example, "upper" and "lower" may be interchanged.

[0032] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by one of ordinary skill in the art. Some technical terms appearing in the embodiments of the present application are explained below.

[0033] In order to make the technical solutions and advantages of the present application clearer, the embodiments of the present application will be further described in detail below with reference to the drawings.

[0034] The first aspect of the present application provides a power system, as shown in Figure 1 、 Figure 2 and Figure 3 , the power system comprises a driving motor 1, a transmission mechanism 2, an output mechanism 3, a generator 4, an engine 5 and a flywheel 6. The driving motor 1 has a first output shaft 11. The transmission mechanism 2 comprises a transmission shaft 21, the transmission shaft 21 is in transmission connection with the first output shaft 11 and the output mechanism 3. The engine 5 is in transmission connection with the flywheel 6. The first output shaft 11 is separated from the flywheel 6 in the orthographic projection of the first projection plane, and the transmission shaft 21 is separated from the flywheel 6 in the orthographic projection of the first projection plane. The first projection plane is a plane perpendicular to the length direction of the engine 5. The generator 4 has an input shaft 41, the input shaft 41 is in transmission connection with the flywheel 6, and the orthographic projection of the input shaft 41 in the first projection plane is located within the orthographic projection of the flywheel 6 in the first projection plane.

[0035] It can be understood that the engine 5 can drive the generator 4 to generate electricity, and the generated electricity can be used to drive the driving motor 1 to work. The driving motor 1 can output power to the output mechanism 3 through the transmission mechanism 2 to drive the output mechanism 3 to work. The orthographic projection of the input shaft 41 in the first projection plane is located within the orthographic projection of the flywheel 6 in the first projection plane, which is beneficial to shorten the transmission path of the engine 5 and the generator 4, and further reduce the transmission parts of the power system of the present application, and thus reduce the volume. The first output shaft 11 is separated from the flywheel 6 in the orthographic projection of the first projection plane, and the transmission shaft 21 is separated from the flywheel 6 in the orthographic projection of the first projection plane, which is beneficial to form a space for arranging the transmission mechanism 2 and the output mechanism 3 in the width direction of the engine 5 by the first output shaft 11 and the flywheel 6, so as to improve the compactness of the engine 5, shorten the width of the power system, and thus reduce the volume.

[0036] In the embodiments of the present application, the width direction of the vehicle body is generally the same as the crankshaft axial length direction of the engine 5.

[0037] In the related art, when a whole vehicle is designed, the width of a front compartment longitudinal beam of a vehicle body is generally limited by structural strength and other requirements, and the width cannot be changed. Meanwhile, the width of the vehicle body is also relatively fixed and cannot be changed in subsequent design. The above two factors result in a narrow width space of the vehicle body.

[0038] Since the power system mainly uses an internal combustion engine as the power source, the power source is less, and thus the width requirement of the vehicle body is not high and can meet the width requirement of the vehicle body. With the addition of the motor as the power source to the power system, and the motor power being related to the power of the engine 5 and needing to be arranged in the width direction of the engine 5, the width of the power system is increased.

[0039] However, due to the arrangement requirement and safety performance requirement of other components, the width space of the vehicle body cannot be increased with the width. This results in certain difficulties in arranging the power system on the whole vehicle.

[0040] The power system of the present application reduces the width of the power system and improves the compactness by improving the positional relationship of the driving motor 1 and the generator 4 relative to the engine 5, thereby reducing the volume and reducing the difficulty of arrangement on the vehicle body.

[0041] In the embodiment of the present application, the driving motor 1 can be connected to the transmission mechanism 2 through gear engagement or the like. The driving motor 1 can drive the first output shaft 11 to rotate by generating a changing electromagnetic field, and the driving transmission mechanism 2 outputs power to the output mechanism 3.

[0042] In the embodiment of the present application, the transmission mechanism 2 can be connected to the output mechanism 3 through gear engagement or the like.

[0043] In the embodiment of the present application, the output mechanism 3 as a driving component of power can include a wheel, and the power output by the transmission mechanism 2 can drive the wheel to rotate, thereby completing the normal work of the power system of the present application.

[0044] In the embodiment of the present application, the engine 5 can serve as the power source of the generator 4, and converts the kinetic energy generated by the fuel into the electric energy of the generator 4 by driving the generator 4 to work. The generated electric energy can be stored in the battery to drive the motor 1 or other components of the automobile to work, thereby achieving the functions necessary for normal driving of the automobile, or directly driving the driving motor 1 to work.

[0045] In the embodiment of the present application, the driving motor 1 can be electrically connected to the generator 4 to directly use the electric energy generated by the generator 4.

[0046] In the embodiment of the application, the flywheel 6 can temporarily store the excess kinetic energy generated by the engine 5 during operation as an energy storage component, and can also act as a starter to provide a certain amount of kinetic energy for the start of the engine 5 until the engine 5 can be driven by the fuel to drive the generator 4 to work.

[0047] In the embodiment of the application, the first projection plane is a plane perpendicular to the length direction of the engine 5. The length direction of the engine 5 can be the axial direction of the crankshaft of the engine 5. The crankshaft includes multiple parallel shaft segments, so the axial direction of the crankshaft can refer to the axial direction of any one of the shaft segments.

[0048] In the embodiment of the application, the orthographic projection of the first output shaft 11 on the first projection plane and the orthographic projection of the transmission shaft 21 on the first projection plane are both separated from the orthographic projection of the flywheel 6 on the first projection plane, which is conducive to forming a space for arranging the transmission mechanism 2 and the output mechanism 3 in the width direction of the engine 5. The drive motor 1 needs to be connected in transmission with the transmission mechanism 2 as a power source, and the transmission mechanism 2 generally needs to adjust the power torque generated by the drive motor 1 during operation, so a considerable space is needed around the first output shaft 11 for the transmission mechanism 2 and its corresponding auxiliary components. The orthographic projection of the first output shaft 11 on the first projection plane and the orthographic projection of the transmission shaft 21 on the first projection plane are both separated from the orthographic projection of the flywheel 6 on the first projection plane, which is conducive to arranging these auxiliary components between the first output shaft 11 and the flywheel 6, which can improve the compactness of the power system of the application. In addition, the drive motor 1 can be closer to the flywheel 6 in the width direction of the engine 5, which can improve the compactness of the power system of the application and is conducive to reducing the volume of the power system of the application.

[0049] In the embodiment of the application, the orthographic projection of the input shaft 41 on the first projection plane is located within the orthographic projection of the flywheel 6 on the first projection plane, which is conducive to shortening the transmission path between the engine 5 and the generator 4, thereby reducing the transmission parts of the power system of the application and reducing the volume thereof. The generator 4 is a driving component of the engine 5 and does not have complex working conditions, so the power requirement of the engine 5 is relatively low and the power of the engine 5 does not need to be adjusted. This makes the power transmission path between the engine 5 and the generator 4 relatively short, so the orthographic projection of the input shaft 41 on the first projection plane is located within the orthographic projection of the flywheel 6 on the first projection plane, which can improve the compactness of the power system of the application while also being compatible with the transmission requirements of the engine 5 and the engine 5.

[0050] In the embodiment of the present application, the transmission path between the driving motor 1 and the output mechanism 3 is longer for the driving motor 1 which needs to adjust power to adapt to the working condition of the output mechanism 3, and the transmission path between the generator 4 and the engine 5 is shorter for the generator 4 which does not need to adjust power. Therefore, the first output shaft 11 of the driving motor 1 with longer transmission path is spaced apart from the flywheel 6 in the orthographic projection of the first projection plane, and the transmission shaft 21 is also spaced apart from the flywheel 6 in the orthographic projection of the first projection plane, which can avoid the interference of the engine 5, and is also conducive to the arrangement of the transmission mechanism 2 and the output mechanism 3 close to the flywheel 6, thereby improving the compactness of the power system of the present application. The input shaft 41 of the generator 4 with shorter transmission path is located in the orthographic projection of the first projection plane of the flywheel 6, which can meet the transmission requirement and improve the compactness of the power system of the present application. In summary, for the power system of the present application, the driving motor 1 and the generator 4 have the same working principle and similar structure, but the positions of the driving motor 1 and the generator 4 are determined according to the working requirements.

[0051] In the embodiment of the present application, the width of the power system mainly includes the width of the generator 4, the length of the input shaft 41, the gap between the input shaft 41 and the flywheel 6, the thickness of the flywheel 6, the gap between the flywheel 6 and the engine 5, and the width of the engine 5. The sum of the values of the above parameters can be 350 mm, 360 mm, 365 mm or 370 mm.

[0052] In the embodiment of the present application, the driving motor 1 has a first output shaft 11. The driving motor 1 and the first output shaft 11 can be connected in transmission through a shaft coupling. The end of the first output shaft 11 away from the driving motor 1 can be provided with a bearing for connecting with other components to support the first output shaft 11 so that the first output shaft 11 can rotate.

[0053] In the embodiment of the present application, the generator 4 has an input shaft 41. The generator 4 and the input shaft 41 can be connected in transmission through a shaft coupling. The end of the input shaft 41 away from the generator 4 can be provided with a bearing for connecting with other components to support the input shaft 41 so that the input shaft 41 can rotate.

[0054] In the embodiment of the present application, the transmission mechanism 2 includes a transmission shaft 21. The end of the transmission shaft 21 can be provided with a bearing for connecting with other components to support the transmission shaft 21 so that the transmission shaft 21 can rotate.

[0055] In some embodiments of the present application, the output mechanism 3 and the first output shaft 11 are connected in power transmission through the transmission mechanism 2. Due to the existence of the transmission mechanism 2, the output mechanism 3 is generally located at a relatively lower position in the power system of the present application (i.e. the position of the crankshaft of the engine 5). As shown in FIG. 1, the output mechanism 3 is arranged at the lower end of the first output shaft 11.Figure 2 As shown in the figure, the first output shaft 11 is separated from the flywheel 6 in the direction of the second projection plane, and at least a part of the output mechanism 3 is located between the first output shaft 11 and the flywheel 6. This arrangement is conducive to improving the compactness of the power system of the present application.

[0056] In the embodiment of the present application, the flywheel 6 is arranged in the direction of the second projection plane with the input shaft 41 of the generator 4, so that the first output shaft 11 is separated from the flywheel 6 in the direction of the second projection plane, which is conducive to reducing the mutual interference between the input shaft 41 and the transmission mechanism 2, and at the same time, at least a part of the output mechanism 3 is located between the first output shaft 11 and the flywheel 6, which is conducive to shortening the length of the power system to reduce the volume of the power system of the present application.

[0057] In the embodiment of the present application, the width direction of the engine 5 can be the radial direction of the crankshaft of the engine 5. The crankshaft includes a plurality of parallel shaft segments, so the axial direction of the crankshaft can refer to the radial direction of any one of the shaft segments.

[0058] In some embodiments of the present application, as shown in the figure, the output mechanism 3 includes a second output shaft 31, and the second output shaft 31 is in driving connection with the transmission shaft 21. Figure 2

[0059] In the embodiment of the present application, the power transmission between the second output shaft 31 and the transmission shaft 21 can be achieved by rotation. The transmission shaft 21 is in driving connection with the output shaft, which is conducive to the second output shaft 31 receiving and adjusting the torque and rotational speed from the transmission shaft 21, and then outputting them to the working components to realize the operation of the power system.

[0060] In the embodiment of the present application, the end of the second output shaft 31 can be provided with a bearing for connecting with other components to support the second output shaft 31 so that the second output shaft 31 can rotate.

[0061] In some embodiments of the present application, as shown in the figure, the second output shaft 31 is separated from the flywheel 6 in the direction of the first projection plane. Figure 2

[0062] In the embodiment of the present application, the output mechanism 3 generally has more components to realize the output of power. The second output shaft 31 is separated from the flywheel 6 in the direction of the first projection plane, which is conducive to arranging the corresponding components of the output mechanism 3 between the output shaft and the flywheel 6, so as to improve the compactness of the power system of the present application.

[0063] In some embodiments of the present application, as shown in the figure, the second output shaft 31 is separated from the flywheel 6 in the direction of the first projection plane. Figure 2 ​​As shown, the output mechanism 3 comprises a first output gear 32, which is sleeved on the second output shaft 31 and is in driving connection with the second output shaft 31, and the transmission mechanism 2 comprises a first transmission gear 22, which is sleeved on the transmission shaft 21 and is in driving connection with the transmission shaft 21, and the first output gear 32 is in meshing connection with the first transmission gear 22.

[0064] In the embodiment of the present application, the first transmission gear 22 is in meshing connection with the first output gear 32, so that the power received by the transmission shaft 21 from the driving motor 1 can be transmitted to the first output gear 32 through rotation, thereby realizing power transmission. The first transmission gear 22 and the first output gear 32 can also respectively adjust the number of teeth to correspondingly adjust the torque and the rotation speed of the power output by the output mechanism 3.

[0065] In the embodiment of the present application, the driving motor 1, the transmission mechanism 2 and the output mechanism 3 are arranged along the height direction of the power system of the present application in sequence, wherein the normal projection of the first output gear 32 in the first projection plane partially overlaps the normal projection of the flywheel 6 in the first projection plane.

[0066] In the embodiment of the present application, the number of teeth of the first output gear 32 is greater than the number of teeth of the first transmission gear 22, so as to adjust the output power of the first transmission gear 22 to reduce the rotation speed and increase the torque. The specific number of teeth of the first output gear 32 and the specific number of teeth of the first transmission gear 22 should be determined according to actual conditions.

[0067] In the embodiment of the present application, the first output gear 32 can be in driving connection with the second output shaft 31 through key connection, so that the second output shaft 31 can drive the first output gear 32 to rotate. The first output gear 32 can also be in driving connection with the second output shaft 31 through welding or one-piece forming process, so that the second output shaft 31 can drive the first output gear 32 to rotate.

[0068] In the embodiment of the present application, the first transmission gear 22 can be in driving connection with the transmission shaft 21 through key connection, so that the transmission shaft 21 can drive the first transmission gear 22 to rotate. The first transmission gear 22 can also be in driving connection with the transmission shaft 21 through welding or one-piece forming process, so that the transmission shaft 21 can drive the first transmission gear 22 to rotate.

[0069] In some embodiments of the present application, as shown in Figure 3 The transmission shaft 21 is located on the side away from the engine 5 of the line connecting the center of the first output shaft 11 and the center of the second output shaft 31.

[0070] In the embodiments of the present application, the transmission shaft 21 is arranged far from the engine 5, which is beneficial to arranging corresponding transmission components on the transmission shaft 21 to transmit and adjust the power from the driving motor 1 to adapt to the working condition of the power system of the present application.

[0071] In some embodiments of the present application, as shown in Figure 3 The driving motor 1 has a first input gear 12 sleeved on the first output shaft 11 and connected in transmission with the first output shaft 11, and the transmission mechanism 2 has a second transmission gear 23 sleeved on the transmission shaft 21 and connected in transmission with the transmission shaft 21, and the first input gear 12 is engaged with the second transmission gear 23.

[0072] In the embodiments of the present application, the first input gear 12 is engaged with the second transmission gear 23, so that the power of the driving motor 1 can be transmitted to the second transmission gear 23 through rotation, thereby realizing the transmission of power. The first input gear 12 and the second transmission gear 23 can also be adjusted in tooth number respectively to preliminarily adjust the torque and rotational speed of the power of the transmission mechanism 2, which is beneficial to subsequent adjustment of power.

[0073] In the embodiments of the present application, the second transmission gear 23 has a larger tooth number than the first input gear 12 to adjust the output power of the first input gear 12 so that the rotational speed is reduced and the torque is increased. The specific tooth number of the second transmission gear 23 and the specific tooth number of the first input gear 12 should be determined according to actual conditions.

[0074] In the embodiments of the present application, the first input gear 12 can be connected in transmission with the first output shaft 11 through key connection, so that the first output shaft 11 can drive the first input gear 12 to rotate. The first input gear 12 can also be connected in transmission with the first output shaft 11 through welding or one-piece forming process, so that the first output shaft 11 can drive the first input gear 12 to rotate.

[0075] In the embodiments of the present application, the second transmission gear 23 can be connected in transmission with the transmission shaft 21 through key connection, so that the second transmission gear 23 can drive the transmission shaft 21 to rotate. The second transmission gear 23 can also be connected in transmission with the transmission shaft 21 through welding or one-piece forming process, so that the second transmission gear 23 can drive the transmission shaft 21 to rotate.

[0076] In some embodiments of the present application, as shown in Figure 3As shown, the generator 4 has a second input gear 42 sleeved on the input shaft 41 and in driving connection with the input shaft 41, and the engine 5 has a third output shaft 51 and a second output gear 52, the third output shaft 51 being in driving connection with the second output gear 52 and the engine 5, and the second input gear 42 being in mesh with the second output gear 52.

[0077] In the embodiment, the second output gear 52 is in mesh with the second input gear 42, so that the power of the engine 5 can be transmitted to the second input gear 42 through rotation, thereby achieving power transmission. The second output gear 52 and the second input gear 42 can also respectively adjust the number of teeth to adjust the torque and the rotation speed of the power of the engine 5, thereby facilitating to improve the efficiency of the engine 5 in driving the generator 4 to operate through the third output shaft 51.

[0078] In the embodiment, the end of the third output shaft 51 away from the engine 5 can be provided with a bearing for being connected with other components to support the third output shaft 51, so that the third output shaft 51 can rotate.

[0079] In the embodiment, the number of teeth of the second output gear 52 is greater than that of the second input gear 42, so as to adjust the output power of the second output gear 52, increase the rotation speed and reduce the torque, thereby improving the efficiency of power generation. The specific number of teeth of the second output gear 52 and the specific number of teeth of the second input gear 42 should be determined according to actual conditions.

[0080] In the embodiment, the second input gear 42 can be in driving connection with the input shaft 41 through key connection, so that the input shaft 41 can drive the second input gear 42 to rotate. The second input gear 42 can also be in driving connection with the input shaft 41 through welding or one-piece forming process, so that the input shaft 41 can drive the second input gear 42 to rotate.

[0081] In the embodiment, the second output gear 52 can be in driving connection with the third output shaft 51 through key connection, so that the second output gear 52 can drive the third output shaft 51 to rotate. The second output gear 52 can also be in driving connection with the third output shaft 51 through welding or one-piece forming process, so that the second output gear 52 can drive the third output shaft 51 to rotate.

[0082] In some embodiments, the generator 4 and the driving motor 1 are located on the same side of the flywheel 6.

[0083] It can be understood that the generator 4 and the driving motor 1 located on the same side facilitate to improve the compactness of the power system of the application, so as to reduce the volume.

[0084] The second aspect of the present application provides an automobile, which comprises the power system of the above-mentioned embodiments.

[0085] It can be understood that the automobile of the present application has the same technical effects as the power system of the above-mentioned embodiments due to the adoption of the same power system as the above-mentioned embodiments, which will not be described herein again.

[0086] In the present application, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. The term "a plurality of" refers to two or more, unless otherwise expressly limited.

[0087] Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of this application following the general principles thereof and including those expressly stated or implied herein. The specification and examples are to be regarded as illustrative only.

[0088] It should be understood that the present application is not limited to the precise construction that has been described and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the present application. The scope of the present application is limited only by the claims appended hereto.

Claims

1. A power system, characterized in that, The power system includes a drive motor (1), a transmission mechanism (2), an output mechanism (3), a generator (4), an engine (5), and a flywheel (6), wherein, The drive motor (1) has a first output shaft (11); The transmission mechanism (2) includes a transmission shaft (21), which drives the first output shaft (11) and the output mechanism (3). The engine (5) is connected to the flywheel (6) via a transmission. The orthographic projection of the first output shaft (11) on the first projection plane and the orthographic projection of the transmission shaft (21) on the first projection plane are both separated from the orthographic projection of the flywheel (6) on the first projection plane. The first projection plane is a plane perpendicular to the length direction of the engine (5). The generator (4) has an input shaft (41) which is connected to the flywheel (6) in a drive. The orthographic projection of the input shaft (41) on the first projection plane is located within the orthographic projection of the flywheel (6) on the first projection plane. The orthographic projection of the first output shaft (11) on the second projection plane is separated from the orthographic projection of the flywheel (6) on the second projection plane. The second projection plane is a plane perpendicular to the width direction of the engine (5). At least a portion of the output mechanism (3) is located between the first output shaft (11) and the flywheel (6). The output mechanism (3) includes a second output shaft (31), which is connected to the transmission shaft (21) in a driving manner; The orthographic projection of the second output shaft (31) onto the first projection plane is separated from the orthographic projection of the flywheel (6) onto the first projection plane.

2. The power system according to claim 1, characterized in that, The output mechanism (3) includes a first output gear (32), which is sleeved on the second output shaft (31) and is connected to the second output shaft (31) in a driving manner. The transmission mechanism (2) includes a first transmission gear (22), which is sleeved on the transmission shaft (21) and is connected to the transmission shaft (21) in a driving manner. The first output gear (32) meshes with the first transmission gear (22).

3. The power system according to claim 1, characterized in that, The drive shaft (21) is located on the side away from the engine (5) on the line connecting the center of the first output shaft (11) and the center of the second output shaft (31).

4. The power system according to claim 1, characterized in that, The drive motor (1) has a first input gear (12), which is sleeved on the first output shaft (11) and is connected to the first output shaft (11) in a driving manner. The transmission mechanism (2) has a second transmission gear (23), which is sleeved on the transmission shaft (21) and is connected to the transmission shaft (21) in a driving manner. The first input gear (12) meshes with the second transmission gear (23).

5. The power system according to claim 1, characterized in that, The generator (4) has a second input gear (42), which is sleeved on the input shaft (41) and is connected to the input shaft (41) in a driving manner. The engine (5) has a third output shaft (51) and a second output gear (52), which is connected to the second output gear (52) and the engine (5) in a driving manner. The second input gear (42) meshes with the second output gear (52).

6. The power system according to claim 1, characterized in that, The generator (4) and the drive motor (1) are located on the same side of the flywheel (6).

7. A car, characterized in that, The vehicle includes the powertrain as described in any one of claims 1 to 6.

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