Driving apparatus and vehicle
By integrating the driver, transmission and reducer, and using the height difference to reserve accommodation space, the problem of the drive device adapting to the vehicle model with smaller wheelbase and small ground clearance in the prior art is solved, achieving higher integration and improved vehicle passivity.
Patent Information
- Application Number
- PCT/CN2024/122972
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-10-31
- Filing Date
- 2024-09-30
- Publication Date
- 2025-05-08
AI Technical Summary
In the prior art, the drive device is difficult to be applied to vehicles with small wheelbases, and the ground clearance of the vehicle is small, which affects the passing of the vehicle.
By integrating the drive, transmission and reducer, and setting the drive and transmission higher than the bottom of the reducer in the height direction of the vehicle, the height difference reserves accommodation space for other structures, thereby reducing the width of the vehicle and improving ground clearance.
It achieves higher drive device integration, adapts to models with smaller wheelbases, and improves the vehicle's ground clearance and passability.
Smart Images

Figure CN2024122972_08052025_PF_FP_ABST
Abstract
Description
Drive unit and vehicle
[0001] This application claims priority to Chinese patent application number CN202322946625.4, filed on October 31, 2023, entitled “Drive Device and Vehicle,” the entire contents of which are incorporated herein by reference. Technical Field
[0002] The present application relates to the field of vehicle technology, and more particularly, to a drive device and a vehicle having the drive device. Background Art
[0003] A vehicle's drive structure typically includes a drive motor and a reducer. The drive motor, as the vehicle's power source, provides motive force. Due to the high rotational speed of the drive motor, a reducer is required to reduce speed and increase torque. A gearbox can also be positioned between the drive motor and the reducer. By varying the gear ratio of the gearbox, the torque can be adjusted to meet the requirements of different operating conditions. In the prior art, the drive motor, reducer, and gearbox are typically located on the same horizontal plane. This arrangement of other structures, such as the exhaust pipe, requires avoiding the aforementioned drive structure, resulting in a wider vehicle, which is unfavorable for vehicles with smaller wheelbases. It also reduces the vehicle's ground clearance, impairing its ability to pass through.
[0004] Summary of the Invention
[0005] The present application provides a new technical solution for a driving device, which can at least solve one of the problems in the prior art that the driving device is difficult to be applied to vehicles with smaller wheelbases and smaller ground clearances.
[0006] The present application also provides a vehicle comprising the above-mentioned drive device.
[0007] According to a first aspect of the present application, a drive device is provided, comprising a driver, a gearbox, and a speed reducer. The gearbox and the driver are spaced apart in the width direction of a vehicle. At least a portion of the speed reducer is located between the driver and the gearbox. In the height direction of the vehicle, at least one of the driver and the gearbox is higher than a bottom portion of the speed reducer.
[0008] Optionally, in the height direction of the vehicle, the bottom of the driver and the bottom of the gearbox are respectively higher than the bottom of the reducer.
[0009] Optionally, in the width direction of the vehicle, the speed reducer is staggered from the drive and the gearbox respectively.
[0010] Optionally, the drive device further comprises a differential connected to an output end of the speed reducer, at least a portion of the differential being disposed on a side of the speed reducer facing the driver, and a bottom of the differential being higher than a bottom of the speed reducer in a height direction of the vehicle.
[0011] Optionally, the differential overlaps with the speed reducer in the width direction of the vehicle.
[0012] Optionally, the driving device further comprises a controller, wherein the controller is electrically connected to the driver, and the controller and the driver are located on the same side of the reducer.
[0013] Optionally, in the height direction of the vehicle, the bottom of the controller is higher than the reducer.
[0014] Optionally, in the height direction of the vehicle, the controller and the driver are respectively extended obliquely to both sides relative to the reducer, and the gearbox and the driver are extended obliquely to the same side relative to the reducer.
[0015] According to a second aspect of the present application, a vehicle is provided, comprising the drive device described in any of the above embodiments and an exhaust pipe. The bottom of the drive cooperates with the reducer to define a storage space. At least a portion of the exhaust pipe extends along the length of the vehicle, and the portion of the exhaust pipe extending along the length of the vehicle is accommodated within the storage space.
[0016] Optionally, the vehicle further includes a subframe, and the drive device and the exhaust pipe are respectively arranged on the subframe. The subframe includes a front crossbeam, a rear crossbeam, a first longitudinal beam and a second longitudinal beam. The front crossbeam and the rear crossbeam extend in the width direction of the vehicle respectively and are spaced apart in the length direction of the vehicle. The drive device is located between the front crossbeam and the rear crossbeam and is connected to the front crossbeam and the rear crossbeam respectively. The first longitudinal beam and the second longitudinal beam extend in the length direction of the vehicle respectively and are spaced apart in the width direction of the vehicle. The first longitudinal beam and the second longitudinal beam are respectively connected to the front crossbeam and the rear crossbeam. The portion of the reducer that is lower than the drive and the gearbox is located between the first longitudinal beam and the second longitudinal beam. In the height direction of the vehicle, the first longitudinal beam is located on the lower side of the drive, and the second longitudinal beam is located on the lower side of the gearbox.
[0017] Optionally, the vehicle further comprises a lower control arm mounting frame, wherein the lower control arm mounting frame is mounted on the subframe, and the lower control arm mounting frame, the first longitudinal beam and the second longitudinal beam are arranged along the width direction of the vehicle.
[0018] Optionally, in the width direction of the vehicle, the speed reducer and the exhaust pipe are located on both sides of the center line of the vehicle.
[0019] According to the drive device of the present application, a single driver, gearbox, and reducer are integrated together, making the drive device more integrated. By arranging at least a portion of the reducer between the driver and gearbox, and arranging at least one of the driver and gearbox higher than the bottom of the reducer in the height direction of the vehicle, the height difference between the driver or gearbox and the reducer can be used to reserve space for other vehicle structures. This allows some structures that were originally spaced apart from the drive device in the width direction of the vehicle to be arranged at the bottom of the gearbox or reducer, thereby reducing the width of the vehicle, better adapting to vehicles with smaller wheelbases, and at the same time increasing the ground clearance of the vehicle, improving the vehicle's passability.
[0020] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.
[0022] FIG1 is a left side view of a driving device according to an embodiment provided by the present application;
[0023] FIG2 is a bottom view of a driving device according to an embodiment provided by the present application;
[0024] FIG3 is a perspective view of a partial structure of a vehicle according to an embodiment provided by the present application;
[0025] FIG4 is a perspective view of a partial structure of a vehicle according to an embodiment provided by the present application from another perspective;
[0026] FIG5 is a cross-sectional view of a partial structure of a vehicle according to an embodiment provided by the present application;
[0027] FIG6 is a bottom view of a partial structure of a vehicle according to an embodiment provided by the present application;
[0028] FIG7 is a left side view of a partial structure of a vehicle according to an embodiment provided by the present application;
[0029] FIG8 is a right side view of a portion of a vehicle according to an embodiment of the present application.
[0030] Reference numerals include: drive device 100; driver 10; first accommodation space / accommodation space 11; gearbox 20; second accommodation space 21; speed reducer 30; differential 40; differential lock 41; controller 50; subframe 200; front cross member 201; rear cross member 202; first longitudinal member 203; second longitudinal member 204; lower control arm mounting bracket 205; centerline A; exhaust pipe 300; main frame 400; vehicle 500. DETAILED DESCRIPTION
[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application.
[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the present disclosure, its application, or uses.
[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.
[0034] In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not limiting. Therefore, other examples of the exemplary embodiments may have different values.
[0035] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0036] The driving device 100 according to an embodiment of the present application will be described below in detail with reference to the accompanying drawings. The driving device 100 is used in a vehicle, for example, in a vehicle 500 .
[0037] As shown in FIG. 1 to FIG. 8 , a driving device 100 according to an embodiment of the present application includes a driver 10 , a gearbox 20 , and a reducer 30 .
[0038] Specifically, the transmission 20 and the driver 10 are spaced apart in the width direction of the vehicle 500. At least a portion of the speed reducer 30 is located between the driver 10 and the transmission 20. In the height direction of the vehicle 500, at least one of the driver 10 and the transmission 20 is higher than the bottom of the speed reducer 30.
[0039] In other words, the driving device 100 according to the embodiment of the present application is mainly composed of the driver 10 , the gearbox 20 and the reducer 30 .
[0040] The driver 10 can be used as a power source to provide power for driving the wheels. Alternatively, the driver 10 can be a drive motor, and the output shaft of the drive motor can extend along the width direction of the vehicle 500.
[0041] Optionally, the gearbox 20 may be in transmission connection with the driver 10. For example, the output end of the driver 10 may be connected to the input end of the gearbox 20 via a transmission shaft to transmit the power of the driver 10 and adjust the speed and torque output by the driver 10.
[0042] The gearbox 20 may have multiple gear ratios. During the driving process of the vehicle 500, the gear ratio of the gearbox 20 may be switched to adapt to different working conditions of the vehicle 500. For example, in working conditions with a large torque demand, such as climbing, a large gear ratio output may be used.
[0043] Optionally, the gearbox 20 may be a two-speed gearbox, which may have two gear ratios, one large and one small.
[0044] For ease of explanation, the length direction of the vehicle 500 may be defined as the X-axis direction, the width direction of the vehicle 500 may be defined as the Y-axis direction, and the height direction of the vehicle 500 may be defined as the Z-axis direction.
[0045] Optionally, the reducer 30 can be in transmission connection with the gearbox 20. For example, the output end of the gearbox 20 can be connected to the input end of the reducer 30 to transmit the power output by the driver 10 to the reducer 30. The reducer 30 can be used to reduce the speed and increase the torque. The reducer 30 can be mainly composed of a reduction gear.
[0046] The driver 10 and the gearbox 20 may be spaced apart in the Y-axis direction. Specifically, the driver 10 and the gearbox 20 may each have a housing, and the housing of the driver 10 and the housing of the gearbox 20 may be spaced apart in the Y-axis direction.
[0047] In the Y-axis direction, a portion or all of the reducer 30 may be located between the gearbox 20 and the driver 10. The reducer 30 may have a housing. Specifically, a portion or all of the housing of the reducer 30 may be located between the housing of the gearbox 20 and the housing of the driver 10.
[0048] In the Z-axis direction, at least one of the driver 10 and the gearbox 20 may be higher than the bottom of the reducer 30 , and the specific cases may include but are not limited to the following.
[0049] Case 1: The driver 10 is higher than the bottom of the reducer 30;
[0050] Case 2: The gearbox 20 is higher than the bottom of the reducer 30;
[0051] Case 3: The driver 10 and the gearbox 20 are both higher than the bottom of the reducer 30 .
[0052] In other words, a part or the entirety of the speed reducer 30 may be lower than the driver 10 , and / or a part or the entirety of the speed reducer 30 may be lower than the gearbox 20 .
[0053] When the vehicle 500 is located on a flat ground, the distance between the bottom of the reducer 30 and the ground can be L1, the distance between the driver 10 and the ground can be L2, and the distance between the gearbox 20 and the ground can be L3. L1<L2 and / or L1<L3, which is conducive to increasing the ground clearance of the driver 10 and / or the gearbox 20, thereby reserving accommodation space on the bottom side of the driver 10 and / or the gearbox 20 for some other structures of the vehicle 500.
[0054] In conventional technology, to ensure the passability of vehicle 500, no space is reserved under the driver 10 and transmission 20. Consequently, some structures on vehicle 500 adjacent to the driver 100 need to be located on either side of the driver 100 in the Y-axis direction, increasing the Y-axis dimensions of vehicle 500. In this embodiment, these structures can be located under the driver 10 or transmission 20. Therefore, the driver 100 of this embodiment also helps reduce the width of vehicle 500.
[0055] Thus, according to the drive device 100 of the embodiment of the present application, a single driver 10, a gearbox 20, and a reducer 30 are integrated together, making the drive device 100 more integrated. By arranging at least a portion of the reducer 30 between the driver 10 and the gearbox 20, and arranging at least one of the driver 10 and the gearbox 20 to be higher than the bottom of the reducer 30 in the height direction of the vehicle 500, the height difference between the driver 10 or the gearbox 20 and the reducer 30 can be utilized to reserve space for other structures of the vehicle 500. Therefore, some structures that were originally spaced apart from the drive device 100 in the width direction of the vehicle 500 can be arranged at the bottom of the gearbox 20 or the reducer 30, thereby reducing the width of the vehicle 500, thereby better adapting to vehicles with smaller wheelbases, and at the same time increasing the ground clearance of the vehicle 500 and improving the passability of the vehicle 500.
[0056] Optionally, in the height direction of the vehicle, the bottom of the driver 10 and the bottom of the transmission 20 are respectively higher than the bottom of the speed reducer 30 .
[0057] In other words, the bottom of the speed reducer 30 is closer to the ground than the bottom of the driver 10 and the bottom of the gearbox 20. For example, in the Z-axis direction, the distance between the bottom surface of the speed reducer 30 housing and the ground can be smaller than the distance between the bottom surface of the driver 10 housing and the ground, and the distance between the bottom surface of the speed reducer 30 housing and the ground can be smaller than the distance between the bottom surface of the gearbox 20 housing and the ground.
[0058] The bottom of the housing of the driver 10 and the bottom of the housing of the gearbox 20 are respectively provided with a large ground clearance, which allows some other structures of the vehicle 500 to be arranged on the bottom side of the driver 10 and / or the bottom side of the gearbox 20, and makes the bottom of these structures not lower than the bottom of the reducer 30, thereby improving the passability of the vehicle 500.
[0059] In addition, some other structures on the vehicle 500 that were originally arranged on both sides of the driver 10 and the gearbox 20 along the Y-axis direction can be arranged at the bottom of the driver 10 and / or the gearbox 20, respectively, to further reduce the size of the vehicle 500 in its own width direction.
[0060] Optionally, the speed reducer 30 is staggered from the driver 10 and the transmission 20 in the width direction of the vehicle 500 .
[0061] Specifically, part or all of the reducer 30 can be offset from the driver 10 and the gearbox 20 in the Y-axis direction. The Y-axis represents the left-right direction of the vehicle 500. Therefore, the left and right sides of the reducer 30 can cooperate with the side faces of the driver 10 and the reducer 20 in the X-axis direction to form a corner space. This corner space can be used to accommodate other components of the vehicle 500. As a result, some components that were originally located on the left and right sides of the drive unit 100 can be placed within this corner space, making the vehicle 500 more compact and further reducing its width.
[0062] Alternatively, in the length direction of the vehicle 500, that is, the front-to-back direction of the vehicle 500, at least a portion of the speed reducer 30 may be located in front of the driver 10 and the transmission 20, respectively. For example, the front side of the speed reducer 30 may be located in front of the front side of the driver 10. The rear side of the speed reducer 30 may be located in front of the rear side of the driver 10. The front side of the speed reducer 30 may be located in front of the front side of the transmission 20.
[0063] Optionally, the drive device 100 further includes a differential 40. The differential 40 is connected to the output end of the speed reducer 30. At least a portion of the differential 40 is disposed on a side of the speed reducer 30 facing the drive 10. In the height direction of the vehicle 500, the bottom of the differential 40 is higher than the bottom of the speed reducer 30.
[0064] Specifically, the differential 40, the speed reducer 30, the transmission 20, and the driver 10 can be integrated together to improve the integration of the drive device 100. The differential 40 can be drivingly connected to the transmission 20. The input end of the differential 40 can be connected to the output end of the speed reducer 30 to receive the power output by the speed reducer 30. The output end of the differential 40 can be drivingly connected to the left and right wheels of the vehicle 500 via a drive axle to transmit power to the wheels. The differential 40 can drive the two wheels to rotate at different speeds.
[0065] In the Y-axis direction, part or all of the differential 40 and the driver 10 may be located on the same side of the speed reducer 30. For example, as shown in FIG5 , the driver 10 may be located on the right side of the speed reducer 30, and part or all of the differential 40 may be located on the right side of the speed reducer 30. The gearbox 20 may be located on the left side of the speed reducer 30.
[0066] Since the size of the driver 10 is generally large, disposing at least a portion of the differential 40 on the side of the speed reducer 30 facing the driver 10 is beneficial for reducing the overall Y-direction size of the driving device 100 .
[0067] For example, in the Y-axis direction, the end surface of the driver 10 farthest from the speed reducer 30 is located on the side of the differential 40 that is away from the speed reducer 30. In other words, the Y-axis dimension of the portion of the differential 40 located on the side of the speed reducer 30 facing the driver 10 is smaller than the Y-axis dimension of the driver 10. Because the Y-axis dimension of the driver 10 is relatively large, locating at least a portion of the differential 40 on the side of the speed reducer 30 facing the driver 10 helps reduce the overall Y-axis dimension of the drive device 100, leaving more space for other components of the vehicle 500 and making it more suitable for layouts of vehicles with smaller wheelbases.
[0068] The bottom of the differential 40 is higher than the bottom of the speed reducer 30. In other words, the distance between the differential 40 and the ground can be greater than the distance between the speed reducer 30 and the ground. Therefore, the bottom of the differential 40 can reserve space for other components of the vehicle 500, increasing the overall ground clearance of the vehicle 500 and improving the vehicle's maneuverability. Furthermore, other components of the vehicle 500, originally located on either side of the differential 40 along the Y-axis, can be relocated to the bottom of the differential 40, reducing the width of the vehicle 500.
[0069] Specifically, as shown in FIG. 5 , in the Z-axis direction, the bottom surface of the housing of the differential 40 may be higher than the bottom surface of the housing of the speed reducer 30 , so that the differential 40 has a higher ground clearance.
[0070] Optionally, the speed reducer 30 and the differential 40 may be integrated together. Specifically, the reduction gear in the speed reducer 30 and the multiple gears in the differential 40 may be enclosed in a single housing. The bottom surface of the housing corresponding to the differential 40 may be higher than the bottom surface of the housing corresponding to the speed reducer 30.
[0071] Alternatively, the differential 40 overlaps with the speed reducer 30 in the width direction of the vehicle 500 .
[0072] Specifically, the speed reducer 30 and the differential 40 can each be cylindrical, with the axes of the cylindrical speed reducer 30 and the cylindrical differential 40 extending along the Y-axis. The speed reducer 30 has a larger diameter, while the differential 40 has a smaller diameter. In the Y-axis, a portion or all of the differential 40 can overlap with the speed reducer 30. For example, in the Y-axis, the differential 40 can be divided into at least two portions: a first portion can be located on the side of the speed reducer 30 facing the driver 10, and a second portion can completely overlap with the speed reducer 30.
[0073] In this embodiment, by arranging the differential 40 to overlap with the reducer 30 in the Y-axis direction, it is beneficial to reduce the size of the whole formed by the differential 40 and the reducer 30 in the Y-direction, reduce the layout space required for the drive device 100, facilitate the layout of other structures of the vehicle 500, and improve the compactness of the vehicle 500.
[0074] Optionally, the driving device 100 further includes a differential lock 41 , which is disposed in the differential 40 and is used to lock the differential 40 .
[0075] Specifically, a differential lock 41 may be integrated into the differential 40. When one of the two wheels connected to the differential 40 spins, the differential lock 41 may lock the differential 40, causing the drive axles corresponding to the two wheels to become rigidly connected. This allows the torque output by the driver 10 to be transmitted to the two wheels, allowing the vehicle 500 to continue driving and preventing the vehicle 500 from losing power due to a spinning wheel.
[0076] Optionally, the driving device 100 further includes a controller 50 , which is electrically connected to the driver 10 . The controller 50 and the driver 10 are located on the same side of the reducer 30 .
[0077] The controller 50 can control the driver 10 to adjust the power output by the driver 10. Placing the controller 50 on the side of the reducer 30 facing the driver 10 can make the overall structure of the drive device 100 more compact. Furthermore, integrating the controller 50, the driver 10, the reducer 30, and the reducer together helps improve the integration of the drive device 100.
[0078] Optionally, in the height direction of the vehicle 500 , the bottom of the controller 50 is higher than the speed reducer 30 .
[0079] In the Z-axis direction, the ground clearance of the bottom of the controller 50 can be greater than the ground clearance of the bottom of the reducer 30, so as to increase the ground clearance of the controller 50 and facilitate the layout of other structures of the vehicle 500. Specifically, the main body of the controller 50 can be enclosed in a corresponding housing. The top surface of the housing of the controller 50 can be higher than the top surface of the housing of the reducer 30.
[0080] In addition, the controller 50 contains a sophisticated electronic control structure. Increasing the ground clearance of the controller 50 helps protect the controller 50 and prevent foreign objects on the road from colliding with the controller 50 and causing damage to the controller 50.
[0081] Optionally, the controller 50 may be arranged to be located on the top side of the differential 40 . Since the differential 40 is higher than the speed reducer 30 in the Z-axis direction, the controller 50 is also higher than the speed reducer 30 .
[0082] Optionally, in the height direction of the vehicle 500 , the controller 50 and the driver 10 extend obliquely to both sides relative to the reducer 30 , and the gearbox 20 and the driver 10 extend obliquely to the same side relative to the reducer 30 .
[0083] Specifically, because the bottoms of the driver 10, the gearbox 20, and the controller 50 are higher than the bottom of the reducer 30, the driver 10, the gearbox 20, and the controller 50 extend obliquely upward relative to the reducer 30. The driver 10 and the gearbox 20 can extend obliquely upward in the positive direction of the X-axis, and the controller 50 can extend obliquely upward in the negative direction of the X-axis, making the entire drive device 100 more compact.
[0084] For example, the positive direction of the X-axis direction may be defined as facing the rear of the vehicle 500, and the negative direction of the X-axis direction may be defined as facing the front of the vehicle 500. The driver 10 and the transmission 20 may extend toward the upper rear of the vehicle 500, and the controller 50 may extend toward the upper front of the vehicle 500. That is, in the height direction of the vehicle 500, the driver 10, the transmission 20, and the controller 50 are all higher than the speed reducer 30. In the front-to-back direction of the vehicle 500, the driver 10 and the transmission 20 are closer to the rear end of the vehicle 500 relative to the speed reducer 30, and the controller 50 is closer to the front end of the vehicle 500 relative to the speed reducer 30.
[0085] The controller 50 and the driver 10 are not only located on the same side of the reducer 30, but also higher than the reducer 30. The driver 10 and the gearbox 20 are not only located on both sides of the reducer 30 in the Y-axis direction, but also higher than the reducer 30.
[0086] Alternatively, in the X-axis direction, the controller 50 may be located in front of the driver 10. The controller 50 may be located above and in front of the reducer 30. The driver 10 may be located above and behind the reducer 30. The gearbox 20 may be located above and behind the reducer 30. In the Y-axis direction, the driver 10 and the controller 50 may be located on the right side of the reducer 30, and the gearbox 20 may be located on the left side of the reducer 30.
[0087] Optionally, in the height direction of the vehicle 500, the driver 10 and the transmission 20 may each be higher than the differential 40. Specifically, the bottom surface of the driver 10 housing and the bottom surface of the transmission 20 housing may each be higher than the bottom surface of the differential 40 housing, so that the driver 10 and the transmission 20 have a greater ground clearance, thereby reserving more space on the bottom side of the driver 10 and the transmission 20 to facilitate the installation of other structures of the vehicle 500.
[0088] The embodiment of the present application further provides a vehicle 500 , as shown in FIG. 3 to FIG. 8 . The vehicle 500 includes a driving device 100 and an exhaust pipe 300 .
[0089] The drive device 100 is the drive device 100 according to the above-described embodiment. The bottom of the driver 10 cooperates with the reducer 30 to define a storage space. At least a portion of the exhaust pipe 300 extends along the length of the vehicle. The portion of the exhaust pipe 300 extending along the length of the vehicle is accommodated within the storage space.
[0090] Specifically, the arrangement of the drive device 100 and the exhaust pipe 300 of this embodiment is applicable to rear-wheel drive and four-wheel drive vehicles. In addition, this rear-wheel drive arrangement is applicable to new energy vehicles such as off-road vehicles, pickup trucks or large SUVs.
[0091] The side of the reducer 30 facing the driver 10 and the bottom of the driver 10 can cooperate to define a first receiving space 11. The side of the reducer 30 facing the gearbox 20 and the bottom of the gearbox 20 can cooperate to define a second receiving space 21. The first receiving space 11 can be the above-mentioned accommodation space.
[0092] A portion of the exhaust pipe 300 can extend along the X-axis, and this portion can be accommodated within the first accommodation space 11. In other words, the portion of the exhaust pipe 300 extending along the X-axis can be embedded below the driver 10 and located on the side of the speed reducer 30 facing the driver 10, with the bottom of the exhaust pipe 300 no lower than the bottom of the speed reducer 30. This ensures that the exhaust pipe 300 can be accommodated at the bottom of the driver 10 while ensuring the passability of the vehicle 500.
[0093] Compared with the conventional technology in which the exhaust pipe 300 is arranged on one side of the drive device 100 as a whole in the Y-axis direction, in this embodiment, since the driver 100 is higher than the bottom of the reducer 30, an accommodation space is reserved for the exhaust pipe 300 on the bottom side of the driver 100, so that the exhaust pipe 300 can be arranged below the driver 10 and adjacent to the reducer 30, which is beneficial to reducing the size of the vehicle 500 in its own width direction while ensuring the passability of the vehicle 500.
[0094] Since the drive device 100 according to the embodiment of the present application has the above-mentioned technical effects, the vehicle 500 according to the embodiment of the present application also has corresponding technical effects, that is, the vehicle 500 has a higher degree of integration, and the height difference between the driver 10 or the gearbox 20 and the reducer 30 can be used to reserve accommodation space for the exhaust pipe 300, which is beneficial to reducing the Y-direction dimension of the drive device 100, realizing the concealed arrangement of the exhaust pipe 300, improving the aesthetics of the entire vehicle, and better adapting to models with smaller wheelbases. At the same time, it can also increase the ground clearance of the exhaust pipe 300, thereby improving the passability of the vehicle 500.
[0095] Alternatively, the exhaust pipe 300 may be located at the bottom of the first portion of the differential 40. The first portion of the differential 40 may be higher than the speed reducer 30 and lower than the driver 10 in the Z direction. Providing the exhaust pipe 300 at the bottom of the first portion of the differential 40 allows the exhaust pipe 300 to be closer to the speed reducer 30, making the layout of the exhaust pipe 300 and the subframe 200 more compact.
[0096] Optionally, the vehicle 500 further includes a subframe 200 , and the drive device 100 and the exhaust pipe 300 are respectively disposed on the subframe 200 . The subframe 200 includes a front crossbeam 201 , a rear crossbeam 202 , a first longitudinal beam 203 , and a second longitudinal beam 204 .
[0097] The front cross member 201 and the rear cross member 202 each extend along the width of the vehicle 500 and are spaced apart along the length of the vehicle 500. The drive unit 100 is located between the front cross member 201 and the rear cross member 202 and is connected to the front cross member 201 and the rear cross member 202, respectively. The first longitudinal member 203 and the second longitudinal member 204 each extend along the length of the vehicle 500 and are spaced apart along the width of the vehicle 500. The first longitudinal member 203 and the second longitudinal member 204 are connected to the front cross member 201 and the rear cross member 202, respectively. The portion of the speed reducer 30 below the driver 10 and the transmission 20 is located between the first longitudinal member 203 and the second longitudinal member 204. In the height direction of the vehicle 500, the first longitudinal member 203 is located below the driver 10, and the second longitudinal member 204 is located below the transmission 20.
[0098] The subframe 200 may be the skeleton of the front and rear axles of the vehicle, and is used to block vibration and noise, thereby reducing the amount of vibration and noise that enter the vehicle compartment.
[0099] Optionally, the vehicle 500 may further include a main frame 400. The main frame 400 may be a main beam structure of the vehicle 500. The subframe 200 may be mounted on the main frame 400. For example, the main frame 400 may include two longitudinal beams, each of which may extend along the X-axis. The subframe 200 may be connected to the two longitudinal beams of the main frame 400.
[0100] The driving device 100 may be fixedly mounted on the sub-frame 200 by suspension. For example, in the X-axis direction, the front side and the rear side of the driving device 100 may be connected to the sub-frame 200 by suspension structures, respectively.
[0101] The exhaust pipe 300 may be disposed on the sub-frame 200 , and the exhaust pipe 300 and the sub-frame 200 may be connected via a lifting lug.
[0102] The subframe 200 may be primarily composed of a front crossbeam 201, a rear crossbeam 202, a first longitudinal beam 203, and a second longitudinal beam 204. The front crossbeam 201 and the rear crossbeam 202 may extend along the Y-axis. The front crossbeam 201 and the rear crossbeam 202 may be spaced apart in the X-axis. The front crossbeam 201 may be located in front of the rear crossbeam 202. The ends of the front crossbeam 201 may be connected to the two longitudinal beams of the main frame 400, respectively. The ends of the rear crossbeam 202 may also be connected to the two longitudinal beams of the main frame 400, respectively.
[0103] The driving device 100 may be installed between the front cross beam 201 and the rear cross beam 202. Specifically, the driving device 100 and the front cross beam 201 as well as the driving device 100 and the rear cross beam 202 may be connected via a suspension structure.
[0104] The first longitudinal beam 203 and the second longitudinal beam 204 may extend along the X-axis direction, and the first longitudinal beam 203 and the second longitudinal beam 204 may be spaced apart in the Y-axis direction. The front ends of the first longitudinal beam 203 and the second longitudinal beam 204 may be connected to the front cross beam 201, and the rear ends of the first longitudinal beam 203 and the second longitudinal beam 204 may be connected to the rear cross beam 202.
[0105] In the Y-axis direction, a portion of the speed reducer 30 that is lower than the driver 10 and the gearbox 20 may be located between the first longitudinal beam 203 and the second longitudinal beam 204 .
[0106] A portion of the first longitudinal beam 203 can be accommodated in the first accommodation space 11. A portion of the second longitudinal beam 204 can be accommodated in the second accommodation space 21. Specifically, the first longitudinal beam 203 can be located on the right side of the speed reducer 30 and on the bottom side of the driver 10. The second longitudinal beam 204 can be located on the left side of the speed reducer 30 and on the bottom side of the transmission case 20.
[0107] In this embodiment, the first longitudinal beam 203 of the subframe 200 is located on the bottom side of the driver 10, and the second longitudinal beam 204 is located on the bottom side of the gearbox 20. Compared with the conventional technology in which the first longitudinal beam 203 and the second longitudinal beam 204 are arranged on the left and right sides of the entire drive device 100, this not only helps to reduce the weight of the vehicle 500 in the width direction, but also increases the ground clearance of the subframe 200, thereby improving the passability of the vehicle 500.
[0108] In some optional embodiments, in the Y-axis direction, the first longitudinal beam 203 is located on a side of the exhaust pipe 300 away from the reducer 30 .
[0109] Alternatively, the first longitudinal beam 203 and the second longitudinal beam 204 can be curved strips. In the Z-axis direction, the first longitudinal beam 203 and the second longitudinal beam 204 can be curved toward the ground. The two longitudinal beams of the main frame 400 can be curved toward a direction away from the ground.
[0110] Optionally, the vehicle 500 further includes a lower arm mounting frame 205 , which is provided on the subframe 200 . The lower arm mounting frame 205 , the first longitudinal beam 203 , and the second longitudinal beam 204 are arranged along the width direction of the vehicle 500 .
[0111] Specifically, a lower arm mounting bracket 205 may be connected to the subframe 200, which may be used to connect to the suspension system. One end of the suspension system may be connected to the subframe 200 via the lower arm mounting bracket 205, and the other end of the suspension system may be connected to the axle to provide cushioning and shock absorption.
[0112] The number of lower control arm mounting brackets 205 can be two. The two lower control arm mounting brackets 205, the first longitudinal beam 203, and the second longitudinal beam 204 can be arranged along the Y-axis direction. While ensuring the structural strength requirements of the subframe 200, the first longitudinal beam 203 and the second longitudinal beam 204 in the subframe 200 can be prevented from downwardly avoiding the lower control arm mounting brackets 205, thereby increasing the ground clearance of the subframe 200 and improving the trafficability of the vehicle 500.
[0113] Alternatively, in the width direction of the vehicle 500 , the speed reducer 30 and the exhaust pipe 300 are located on both sides of the center line A of the vehicle 500 .
[0114] As shown in FIG5 , the centerline A of the vehicle 500 may pass through the center of the vehicle 500 in the Y-axis direction. In the Y-axis direction, the speed reducer 30 may be located on one side of the centerline A, and the exhaust pipe 300 may be located on the other side of the centerline A. In other words, the speed reducer 30 and the exhaust pipe 300 may be disposed eccentrically relative to the vehicle 500 in the Y-axis direction.
[0115] In this embodiment, the reducer 30 and the exhaust pipe 300 are arranged on both sides of the center line A of the vehicle 500, which is not only conducive to improving the balance of the vehicle 500, but also makes the structure of the vehicle 500 more compact, and facilitates the arrangement of the first longitudinal beam 203 and the second longitudinal beam 204 of the subframe 200, so that the first longitudinal beam 203 and the second longitudinal beam 204 can be arranged roughly symmetrically on both sides of the center line A, thereby further improving the balance of the vehicle 500.
[0116] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.
Claims
1. A driving device (100), characterized in that: include: Driver (10); a gearbox (20) spaced apart from the drive in a width direction of the vehicle; and a speed reducer (30), at least a portion of which is located between the driver and the gearbox; Wherein, in the height direction of the vehicle, at least one of the driver and the gearbox is higher than the bottom of the reducer.
2. The driving device (100) according to claim 1, characterized in that: In the height direction of the vehicle, the bottom of the driver and the bottom of the gearbox are respectively higher than the bottom of the reducer.
3. The driving device (100) according to claim 1, characterized in that: The speed reducer is staggered from the drive and the transmission, respectively, in a width direction of the vehicle.
4. The driving device (100) according to claim 1, characterized in that: Also includes: A differential (40) is connected to the output end of the reducer, at least a portion of the differential is arranged on a side of the reducer facing the drive, and in the height direction of the vehicle, the bottom of the differential is higher than the bottom of the reducer.
5. The driving device (100) according to claim 4, characterized in that: The differential overlaps the speed reducer in the width direction of the vehicle.
6. The driving device (100) according to claim 1, characterized in that: Also includes: A controller (50) is located on the same side of the reducer as the driver, and is electrically connected to the driver.
7. The driving device (100) according to claim 6, characterized in that: In the height direction of the vehicle, the bottom of the controller is higher than the speed reducer.
8. The driving device (100) according to claim 6, characterized in that: In the height direction of the vehicle, the controller and the driver are respectively extended obliquely to both sides relative to the reducer, and the gearbox and the driver are extended obliquely to the same side relative to the reducer.
9. A vehicle (500), characterized in that: include: The driving device (100) is a driving device as claimed in any one of claims 1 to 8. The bottom of the driver cooperates with the reducer to define a receiving space (11); and An exhaust pipe (300), at least a portion of which extends along the length direction of the vehicle, and a portion of the exhaust pipe extending along the length direction of the vehicle is accommodated in the accommodation space.
10. The vehicle (500) according to claim 9, characterized in that The vehicle further comprises a subframe (200), the exhaust pipe being arranged on the subframe, and the subframe comprising: A front cross beam (500) and a rear cross beam, the front cross beam and the rear cross beam respectively extending in the width direction of the vehicle and spaced apart in the length direction of the vehicle, the driving device being located between the front cross beam and the rear cross beam and connected to the front cross beam and the rear cross beam respectively; and A first longitudinal beam (203) and a second longitudinal beam (204), the first longitudinal beam and the second longitudinal beam respectively extending in the length direction of the vehicle and spaced apart in the width direction of the vehicle, the first longitudinal beam and the second longitudinal beam respectively connected to the front cross beam and the rear cross beam; The part of the reducer below the driver and the gearbox is located between the first longitudinal beam and the second longitudinal beam. In the height direction of the vehicle, the first longitudinal beam is located at a lower side of the driver, and the second longitudinal beam is located at a lower side of the transmission.
11. The vehicle (500) according to claim 10, characterized in that Also includes: A lower swing arm mounting frame (205) is arranged on the sub-frame, and the lower swing arm mounting frame, the first longitudinal beam and the second longitudinal beam are arranged along the width direction of the vehicle.
12. The vehicle (500) according to claim 9, characterized in that In the width direction of the vehicle, the speed reducer and the exhaust pipe are respectively located on both sides of a center line of the vehicle.
Citation Information
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