Electric drive system and vehicle

Abstract

The utility model relates to the field of automobiles, in particular to an electric drive system and a vehicle. The electric drive system comprises a shell, a first motor, a second motor, a third motor and a fourth motor, and the shell comprises a first cavity, a second cavity, a third cavity and a fourth cavity; the first cavity is used for accommodating the first electric drive module; the second cavity is used for accommodating the power generation module; the third cavity is used for accommodating the second electric drive module; and the fourth cavity is used for accommodating the electric control module. According to the technical scheme, the first cavity, the second cavity, the third cavity and the fourth cavity share the same shell, so that the number of shells of the driving system is reduced, the whole structure of the electric driving system is quite compact, the problems of gaps and collision when all the systems are arranged in a scattered mode can be effectively solved, and meanwhile more space can be saved.

Description

Technical Field

[0001] The present disclosure relates to the automotive field, and in particular to an electric drive system and a vehicle. Background Art

[0002] In the related art, the existing hybrid vehicle electric drive system includes both a power generation system and a drive system. Therefore, the powertrain including the power generation system and the drive system has a technical problem of being large in size. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the first purpose of the utility model is to provide an electric drive system with a more compact overall structure.

[0004] The second objective of the present invention is to provide a vehicle.

[0005] In order to solve the above problems, the first aspect of the utility model provides an electric drive system, including: a shell, the shell including a first cavity, a second cavity, a third cavity and a fourth cavity; a first electric drive module, the first cavity is used to accommodate the first electric drive module; a power generation module, the second cavity is used to accommodate the power generation module; a second electric drive module, the third cavity is used to accommodate the second electric drive module; an electric control module, the fourth cavity is used to accommodate the electric control module.

[0006] In some embodiments, the electric control module includes a first electric control, a second electric control and a third electric control, the first electric control is used to control the first electric drive module, the second electric control is used to control the power generation module, and the third electric control is used to control the second electric drive module.

[0007] In some embodiments, the first cavity, the second cavity and the third cavity are arranged in sequence along the first direction, the fourth cavity is arranged along the second direction, and the opening directions of the first cavity, the second cavity, the third cavity and the fourth cavity are all different.

[0008] In some embodiments, the first opening direction of the first cavity and the third opening direction of the third cavity are along the first direction and opposite to each other, the fourth opening direction of the fourth cavity is along the second direction, and the second opening direction of the second cavity is along the third direction.

[0009] In some embodiments, the first direction, the second direction, and the third direction are perpendicular to each other.

[0010] In some embodiments, the engine is connected to the power generation module via a torsional damper, and the engine is arranged along a third direction.

[0011] In some embodiments, the first deceleration assembly is disposed at the first opening of the first cavity, and the first deceleration assembly is connected to the first electric drive module; the second deceleration assembly is disposed at the third opening of the third cavity, and the second deceleration assembly is connected to the second electric drive module.

[0012] In some embodiments, a first reduction assembly includes a first end cover bearing seat plate, a first reducer and a first end cover, the first end cover bearing seat plate is arranged at the opening of the first cavity, the output shaft of the first electric drive module passes through the first end cover bearing seat plate and is connected to the first reducer, the first end cover bearing seat plate and the first end cover form a first space, and the first space is used to accommodate the first reducer; a second reduction assembly includes a second end cover bearing seat plate, a second reducer and a second end cover, the second end cover bearing seat plate is arranged at the opening of the third cavity, the output shaft of the second electric drive module passes through the second end cover bearing seat plate and is connected to the second reducer, the second end cover bearing seat plate and the second end cover form a second space, and the second space is used to accommodate the second reducer.

[0013] In some embodiments, a lubrication module is used to lubricate the first reducer, the first electric drive module, the power generation module, the second reducer and the second electric drive module.

[0014] In some embodiments, the lubrication module includes a first lubrication component and a second lubrication component; the first lubrication component lubricates the first electric drive module and the first reducer; the second lubrication component lubricates the second electric drive module and the second reducer; the first lubrication component or the second lubrication component lubricates the power generation module.

[0015] In some embodiments, the distance from the end surface of the outer side of the first end cover to the end surface of the outer side of the second end cover is D1, and the range of D1 is 550-650 mm.

[0016] In some embodiments, the distance between the outermost end surfaces of the first cavity, the second cavity, the third cavity and the fourth cavity along the third direction and the engine case surface is D2, and the range of D2 is 250-380 mm.

[0017] In some embodiments, the output shafts of the first reducer and the second reducer are on the same axis, and the distance between the axis and the top end surface of the fourth cavity is D3, and the range of D3 is 330-370 mm.

[0018] In some embodiments, a vertical distance between the top end surface of the fourth cavity and the inner end surface of the hood is D5, and the range of D5 is 30-350 mm.

[0019] In some embodiments, the distance between the axis and the bottom end surface of the lubrication module used to lubricate the first electric drive module, the power generation module, and the second electric drive module is D4, and the range of D4 is 155-185 mm.

[0020] A second aspect of the utility model provides a vehicle, comprising the above-mentioned electric drive system.

[0021] The shell of the utility model includes a first cavity, a second cavity, a third cavity and a fourth cavity. Therefore, the shell can accommodate the first electric drive module, the power generation module, the second electric drive module and the electric control module at the same time, thereby reducing the number of drive system shells, so that the overall structure of the electric drive system is more compact, which can effectively avoid gaps and collisions when the systems are arranged in a dispersed manner, and at the same time save more space.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure.

[0024] Figure 1 It is a schematic diagram of the principle of an embodiment of the present disclosure;

[0025] Figure 2 is an axonometric schematic diagram of an embodiment of the present disclosure;

[0026] Figure 3 is a rear view schematic diagram of an electric drive system according to an embodiment of the present disclosure;

[0027] Figure 4 is a layout diagram of an electric drive module, a power generation module and a reducer according to an embodiment of the present disclosure;

[0028] Figure 5 is a layout diagram of the electric control module of an embodiment of the present disclosure.

[0029] in,

[0030] Shell: 1;

[0031] First cavity: 11; second cavity: 12; third cavity: 13; fourth cavity: 14;

[0032] First electric drive module: 2; power generation module: 3; second electric drive module: 4; electronic control module: 5; engine: 6; first reduction assembly: 7; second reduction assembly: 8;

[0033] First end cover bearing seat plate: 71; first reducer: 72; first end cover: 73;

[0034] Second end cover bearing seat plate: 81; second reducer: 82; second end cover: 83;

[0035] Lubrication module: 9; first lubrication assembly: 91; second lubrication assembly: 92;

[0036] First direction: X; second direction: Y; third direction: Z. DETAILED DESCRIPTION

[0037] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0038] In the present disclosure, unless otherwise specified, the “inside” and “outside” used refer to the “inside” and “outside” relative to the contour of the corresponding component itself, and the “far” and “near” refer to the “far” and “near” compared to a reference object. In addition, the terms used in the present disclosure such as “first” and “second” are intended to distinguish one element from another and do not have order and importance. In the following description, when referring to the drawings, unless otherwise explained, the same figure numbers in different drawings represent the same or similar elements. The above definitions are only used to explain and illustrate the present disclosure and should not be construed as limitations on the present disclosure.

[0039] See also Figure 1-Figure 5 , the utility model discloses an embodiment of an electric drive system.

[0040] See also Figure 1 In this embodiment, an electric drive system includes a housing 1, a first electric drive module 2, a power generation module 3, a second electric drive module 4 and an electric control module 5.

[0041] The shell 1 includes a first cavity 11, a second cavity 12, a third cavity 13 and a fourth cavity 14; the first cavity 11 is used to accommodate the first electric drive module 2; the second cavity 12 is used to accommodate the power generation module 2; the third cavity 13 is used to accommodate the second electric drive module 4; and the fourth cavity 14 is used to accommodate the electric control module 5.

[0042] In this embodiment, the shell 1 provides four cavities, which are respectively used to accommodate the first electric drive module 2, the power generation module 3, the second electric drive module 4 and the electric control module 5. The four modules share one shell 1, making the structure of the electric drive system more compact, thereby improving the overall space utilization of the electric drive system.

[0043] See also Figure 5 In this embodiment, the electric control module 5 includes a first electric control, a second electric control and a third electric control. The first electric control is used to control the first electric drive module 2, the second electric control is used to control the power generation module 3, and the third electric control is used to control the second electric drive module 4.

[0044] In this embodiment, the electric control module 5 adopts a three-in-one solution, in which the first electric control, the second electric control and the third electric control are accommodated in the same cavity, and are made into a flat structure and integrated above the first electric drive module 2, the power generation module 3 and the second electric drive module 4, so that the electric drive system structure is more compact, the overall weight and space occupancy of the electric drive system are reduced, the overall vehicle layout is convenient and the weight is reduced, thereby reducing costs.

[0045] See also Figure 2-3 In this embodiment, the first cavity 11, the second cavity 12 and the third cavity 13 are arranged in sequence along the first direction, the fourth cavity 14 is arranged along the second direction, and the opening directions of the first cavity 11, the second cavity 12, the third cavity 13 and the fourth cavity 14 are different.

[0046] In this embodiment, the first cavity 11, the second cavity 12 and the third cavity 13 are arranged in sequence along the first direction, and the power generation module 3, the first electric drive module 2 and the second electric drive module 4 are installed in sequence without affecting each other. Then, the electric control module 5 is installed in the fourth cavity 14, and the installation process is convenient and quick.

[0047] See also Figure 2 In this embodiment, the first opening direction of the first cavity 11 and the third opening direction of the third cavity 13 are along the first direction and in opposite directions, the fourth opening direction of the fourth cavity 14 is along the second direction, and the second opening direction of the second cavity 12 is along the third direction.

[0048] In this embodiment, the first opening direction of the first cavity 11 and the third opening direction of the third cavity 13 are along the first direction and in opposite directions, which is convenient for the installation of the first drive module 2, the second drive module 4 and the drive shaft; the fourth opening direction of the fourth cavity 14 is along the second direction, which is convenient for the connection and installation of the electronic control module 5, the power generation module 3 and the electric drive module.

[0049] See also Figure 2 In this embodiment, the first direction, the second direction, and the third direction are perpendicular to each other.

[0050] See also Figure 1 In this embodiment, the engine 6 is connected to the power generation module 3 through a torsional damper, and the engine 6 is arranged along the third direction.

[0051] In this embodiment, the engine 6 is arranged along the third direction, leaving more space inside the vehicle cabin and providing better space utilization.

[0052] On the basis of this example, in other embodiments, the engine 6 is longitudinally mounted, which can realize the power generation and independent driving functions of the wheel-side drive motors in the longitudinal mode of the engine 6, effectively improve the power of the whole vehicle, and balance the weight of the front and rear axles of the vehicle, with better handling and stability.

[0053] See also Figure 1-3 In this embodiment, the first deceleration assembly 7 is arranged at the first opening of the first cavity 11, and the first deceleration assembly 7 is connected to the first electric drive module 2; the second deceleration assembly 8 is arranged at the third opening of the third cavity 13, and the second deceleration assembly 8 is connected to the second electric drive module 4.

[0054] In this embodiment, the first reduction assembly 7 and the second reduction assembly 8 are placed at the end of the vehicle through the above-mentioned connection method, coaxial with the power generation module 3, with a compact structure, which can save space in the entire vehicle and make the cabin more integrated along the first direction, thereby saving more space.

[0055] See also Figure 2-4 In this embodiment, the first reduction assembly 7 includes a first end cover bearing seat plate 71, a first reducer 72 and a first end cover 73. The first end cover bearing seat plate 71 is arranged at the first opening of the first cavity 11. The output shaft of the first electric drive module 2 passes through the first end cover bearing seat plate 71 and is connected to the first reducer 72. The first end cover bearing seat plate 71 and the first end cover 73 form a first space, and the first space is used to accommodate the first reducer 72.

[0056] The second reduction assembly 8 includes a second end cover bearing seat plate 81, a second reducer 82 and a second end cover 83. The second end cover bearing seat plate 81 is arranged at the third opening of the third cavity 13. The output shaft of the second electric drive module 4 passes through the second end cover bearing seat plate 81 and is connected to the second reducer 82. The second end cover bearing seat plate 81 and the second end cover 83 form a second space, and the second space is used to accommodate the second reducer 82.

[0057] In this embodiment, the output shaft of the first electric drive module 2 passes through the first end cover bearing seat plate 71 and is connected to the first reducer 72. It should be explained in detail that the first end cover bearing seat plate 71 supports the first reducer 72, and the first reducer 72 is a planetary gear train reducer; the output shaft of the second electric drive module 4 passes through the second end cover bearing seat plate 81 and is connected to the second reducer 82. It should be explained in detail that the second end cover bearing seat plate 81 supports the second reducer 82, and the second reducer 82 is a planetary gear train reducer.

[0058] In this embodiment, the first reducer 72 and the second reducer 82 are coaxial with the power generation module 3, and have a compact structure, which can save space in the vehicle.

[0059] See also Figure 3-4 , a lubrication module 9, the lubrication module 9 is used to lubricate the first reducer 72, the first electric drive module 2, the power generation module 3, the second reducer 82 and the second electric drive module 4.

[0060] In this embodiment, a set of lubrication modules 9 is adopted, which reduces the demand for lubrication modules, occupies less space, and has a light weight, which is beneficial to the layout and lightweight of the entire vehicle. In addition, the lubrication module 9 is independently arranged and can accurately control the amount of lubricating oil used by the reduction assembly and the electric drive module, thereby improving the lubrication efficiency.

[0061] See also Figure 3-4 , the lubrication module 9 includes a first lubrication component 91 and a second lubrication component 92; the first lubrication component 91 lubricates the first electric drive module 2 and the first reducer 72; the second lubrication component 92 lubricates the second electric drive module 4 and the second reducer 82; the first lubrication component 91 or the second lubrication component 92 lubricates the power generation module 3.

[0062] In this embodiment, two sets of cooling and lubrication components are used to achieve cooling of three motors and two reducers, which can reduce the number of system components, reduce costs and reduce space occupancy, and the cooling systems of the two sets of lubrication components operate independently, which can solve the problem of oil leakage when the electric drive system rolls; at the same time, for the lubrication of the power generation module 3, the first lubrication component 91 or the second lubrication component 92 can be used arbitrarily, which increases the commonality of the lubrication components.

[0063] See also Figure 1 and Figure 3 The distance from the outer end surface of the first end cover 71 to the outer end surface of the second end cover 81 is D1, and the range of D1 is 550-650mm.

[0064] In this embodiment, the range of D1 is controlled to be 550-650 mm, which can avoid interference between the electric drive system and the frame or subframe, while increasing the half-axle length, reducing the half-axle angle, and improving transmission efficiency.

[0065] See also Figure 1 The distance between the outermost end faces of the first cavity 11, the second cavity 12, the third cavity 13 and the fourth cavity 14 along the third direction and the engine housing surface is D2, and the range of D2 is 250-380 mm.

[0066] In this embodiment, controlling the range of D2 to be 250-380 mm can reduce the front overhang size, facilitate the installation of the engine 6, ensure that the engine 6, the electric drive module, etc. can be accommodated in the cabin, and improve the space utilization rate of the cabin.

[0067] See also Figure 4 The output shafts of the first reducer 72 and the second reducer 82 are on the same axis, and the distance between the axis and the top surface of the fourth cavity 14 is D3, and the range of D3 is 330-370 mm.

[0068] In this embodiment, controlling the range of D3 to 330-370 mm can increase the gap between the electric drive assembly and the hood, thereby improving collision safety.

[0069] See also Figure 3 The vertical distance between the top end surface of the fourth cavity 14 and the inner end surface of the engine cover is D5, and the range of D5 is 30-350mm.

[0070] In this embodiment, controlling the range of D5 to be 30-350 mm can maintain the gap between the electric drive assembly and the hood, thereby improving collision safety.

[0071] See also Figure 3 The distance between the axis and the bottom end surface of the lubrication module 9 for lubricating the first electric drive module 2, the power generation module 3, and the second electric drive module 4 is D4, and the range of D4 is 155-185 mm.

[0072] In this embodiment, the range of D4 is controlled to be 155-185 mm, which can increase the ground clearance of the vehicle and improve the vehicle's passability.

[0073] The present disclosure also relates to a vehicle that adopts the above-mentioned electric drive system, which is convenient for the overall vehicle layout and lightweight, has high space utilization, and has a uniform and beautiful overall structure, which is conducive to the implementation of the solution of integrating other modules such as the on-board power supply in the later stage, reducing vehicle fuel consumption and improving acceleration performance and NVH performance.

[0074] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0075] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0076] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. An electric drive system, characterized in that: include: A housing, the housing comprising a first cavity, a second cavity, a third cavity and a fourth cavity; A first electric drive module, wherein the first cavity is used to accommodate the first electric drive module; A power generation module, wherein the second cavity is used to accommodate the power generation module; A second electric drive module, wherein the third cavity is used to accommodate the second electric drive module; The fourth cavity is used to accommodate the electric control module.

2. The electric drive system according to claim 1, characterized in that: The electric control module includes a first electric control, a second electric control and a third electric control, wherein the first electric control is used to control the first electric drive module, the second electric control is used to control the power generation module, and the third electric control is used to control the second electric drive module.

3. The electric drive system according to claim 1, characterized in that: The first cavity, the second cavity and the third cavity are arranged in sequence along the first direction, the fourth cavity is arranged along the second direction, and the opening directions of the first cavity, the second cavity, the third cavity and the fourth cavity are different.

4. The electric drive system according to claim 3, characterized in that: The first opening direction of the first cavity and the third opening direction of the third cavity are along the first direction and opposite to each other, the fourth opening direction of the fourth cavity is along the second direction, and the second opening direction of the second cavity is along the third direction.

5. The electric drive system according to claim 4, characterized in that: The first direction, the second direction, and the third direction are perpendicular to each other.

6. The electric drive system according to any one of claims 1 to 5, characterized in that: It also includes: An engine is connected to the power generation module via a torsional damper, and the engine is arranged along a third direction.

7. The electric drive system according to claim 6, characterized in that: It also includes: A first deceleration assembly, which is disposed at the first opening of the first cavity, and the first deceleration assembly is connected to the first electric drive module; The second deceleration assembly is disposed at the third opening of the third cavity, and the second deceleration assembly is connected to the second electric drive module.

8. The electric drive system according to claim 7, characterized in that: The first reduction assembly comprises a first end cover bearing seat plate, a first reducer and a first end cover, wherein the first end cover bearing seat plate is arranged at the opening of the first cavity, the output shaft of the first electric drive module passes through the first end cover bearing seat plate and is connected to the first reducer, the first end cover bearing seat plate and the first end cover form a first space, and the first space is used to accommodate the first reducer; The second reduction assembly includes a second end cover bearing seat plate, a second reducer and a second end cover. The second end cover bearing seat plate is arranged at the opening of the third cavity. The output shaft of the second electric drive module passes through the second end cover bearing seat plate and is connected to the second reducer. The second end cover bearing seat plate and the second end cover form a second space, and the second space is used to accommodate the second reducer.

9. The electric drive system according to claim 8, characterized in that: It also includes: A lubrication module, wherein the lubrication module is used to lubricate the first reducer, the first electric drive module, the power generation module, the second reducer and the second electric drive module.

10. The electric drive system according to claim 9, characterized in that: A lubrication module, the lubrication module comprising a first lubrication assembly and a second lubrication assembly; The first lubrication assembly lubricates the first electric drive module and the first reducer; The second lubrication assembly lubricates the second electric drive module and the second reducer; The first lubrication assembly or the second lubrication assembly lubricates the power generation module.

11. The electric drive system according to claim 8, characterized in that: The distance from the outer end surface of the first end cover to the outer end surface of the second end cover is D1, and the range of D1 is 550-650 mm.

12. The electric drive system according to claim 4, characterized in that: The distance between the outermost end faces of the first cavity, the second cavity, the third cavity and the fourth cavity along the third direction and the engine casing surface is D2, and the range of D2 is 250-380 mm.

13. The electric drive system according to claim 8, characterized in that: The output shafts of the first reducer and the second reducer are on the same axis, and the distance between the axis and the top end surface of the fourth cavity is D3, and the range of D3 is 330-370 mm.

14. The electric drive system according to claim 1, characterized in that: A vertical distance between the top end surface of the fourth cavity and the inner end surface of the hood is D5, and the range of D5 is 30-350 mm.

15. The electric drive system according to claim 13, characterized in that: The distance between the axis and the bottom end surface of the lubrication module used to lubricate the first electric drive module, the power generation module, and the second electric drive module is D4, and the range of D4 is 155-185 mm.

16. A vehicle, characterized in that: The vehicle comprises the electric drive system according to any one of claims 1-15.

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