Drive assembly of a vehicle and vehicle

Abstract

The application discloses a driving assembly of a vehicle and the vehicle, and the driving assembly comprises an engine, a motor, a first gear, the motor being selectively in driving connection with the engine or the first gear, a first half shaft being in driving connection with a first ring gear of a first planetary gear set, a first sun gear of the first planetary gear set being in driving connection with the first gear and being coaxially arranged, a second half shaft being in driving connection with a second sun gear of a second planetary gear set, wherein the second planetary gear set is a double-pinion planetary gear set, a second carrier of the second planetary gear set being in driving connection with a first carrier of the first planetary gear set, and a second ring gear of the second planetary gear set being locked; or the second planetary gear set is a single-pinion planetary gear set, a second ring gear of the second planetary gear set being in driving connection with the first carrier of the first planetary gear set, and a second carrier of the second planetary gear set being locked. According to the driving assembly, the motor can be turned in the same direction in the generating state and the driving state, the response time is faster, and the transition is more stable.

Description

Technical Field

[0001] This application relates to the field of vehicles, and more particularly to a drive assembly and a vehicle. Background Technology

[0002] In related technologies, in the design of general passenger vehicles, the engine typically rotates counterclockwise when viewed from the transmission end. Conventional transmissions are designed and adapted based on this rotation direction, enabling normal vehicle forward and reverse driving functions. However, in actual vehicle layout planning, there are special cases where engine placement is limited, causing the engine to rotate clockwise when viewed from the transmission end. In this case, if a conventional transmission is still used, when the electric motor switches from generator mode to drive mode, an additional mechanism is needed to change the rotation direction to match the transmission input requirements. This process significantly increases the power response delay, directly affecting vehicle acceleration performance and driving smoothness. Utility Model Content

[0003] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide a drive assembly that enables the motor to rotate in the same direction in both generating and driving states, with a faster response time and a smoother transition.

[0004] This application also proposes a vehicle having the aforementioned drive assembly.

[0005] A drive assembly for a vehicle according to an embodiment of this application includes: an engine; a motor and a first gear, the motor being optionally connected to either the engine or the first gear; a first half-shaft and a first planetary gear set, the first half-shaft being connected to a first ring gear of the first planetary gear set, the first sun gear of the first planetary gear set being connected to the first gear and coaxially arranged; a second half-shaft and a second planetary gear set, the second half-shaft being connected to a second sun gear of the second planetary gear set; wherein the second planetary gear set is a double planetary gear set, the second planet carrier of the second planetary gear set is connected to the first planet carrier of the first planetary gear set, and the second ring gear of the second planetary gear set is locked; or, the second planetary gear set is a single planetary gear set, the second ring gear of the second planetary gear set is connected to the first planet carrier of the first planetary gear set, and the second planet carrier of the second planetary gear set is locked.

[0006] According to the vehicle drive assembly of the present application embodiment, the drive assembly is provided with a first planetary gear set and a second planetary gear set. The first ring gear of the first planetary gear set is driven to the first half-shaft, and the second sun gear of the second planetary gear set is driven to the second half-shaft. By adopting the first planetary gear set and the second planetary gear set architecture, the motor can rotate in the same direction when generating electricity and driving, resulting in a faster response time and a smoother transition.

[0007] In some embodiments of this application, the drive assembly further includes: a first input shaft, which is drive-connected to the engine; and a second input shaft, which is loosely fitted onto the first input shaft and drive-connected to the motor, wherein the second input shaft may be selectively drive-connected to the first input shaft or the first gear.

[0008] In some embodiments of this application, the first input shaft and the second input shaft are arranged coaxially.

[0009] In some embodiments of this application, the drive assembly further includes: a first connecting device disposed at the end of the first input shaft; a second connecting device loosely fitted onto the second input shaft, and a second gear disposed on the outer periphery of the second connecting device, the second gear being connected to the first gear via an intermediate gear drive or a chain drive; wherein the second input shaft may be selectively connected to the first connecting device or the second connecting device for drive.

[0010] In some embodiments of this application, the drive assembly further includes a clutch connected to the second input shaft, and the clutch selectively engages the second input shaft with one of a first connecting device and a second connecting device.

[0011] In some embodiments of this application, the first half-axis, the second half-axis, the first planetary set, and the second planetary set are arranged coaxially.

[0012] In some embodiments of this application, the second planetary gear set is a double planetary gear set, which has a first planetary gear and a second planetary gear. The first planetary gear and the second planetary gear mesh with each other. The first planetary gear meshes with the second sun gear, and the second planetary gear meshes with the second ring gear. The second planetary carrier is connected to the first planetary gear and the second planetary gear respectively.

[0013] In some embodiments of this application, the second planetary gear set is a single planetary gear set, and the second planetary gear set is nested outside the first planetary gear set.

[0014] In some embodiments of this application, the drive assembly further includes: a housing adapted to house the first planetary gear set and the second planetary gear set; wherein, when the second planetary gear set is a double planetary gear set, the second ring gear is fixedly connected to the housing; and when the second planetary gear set is a single planetary gear set, the second planet carrier is fixedly connected to the housing.

[0015] The vehicle of an embodiment of this application is described below.

[0016] The vehicle according to the embodiments of this application is equipped with the drive assembly of the above embodiments. Since the vehicle according to the embodiments of this application is equipped with the drive assembly of the above embodiments, the drive assembly of the vehicle is provided with a first planetary gear set and a second planetary gear set. The first ring gear of the first planetary gear set is driven to the first half-shaft, and the second sun gear of the second planetary gear set is driven to the second half-shaft. By adopting the architecture of the first planetary gear set and the second planetary gear set, the motor can rotate in the same direction in the power generation state and the driving state, resulting in a faster response time and a smoother transition.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the architecture of the drive assembly according to the first embodiment of this application; Figure 2 This is a schematic diagram of the architecture of the drive assembly according to the second embodiment of this application.

[0019] Figure label: 10. Drive assembly; 11. Engine; 12. Electric motor; 13. First gear; 141. First half-shaft; 142. Second half-shaft; 15. First planetary gear set; 151. First gear ring; 152. First sun gear; 153. First planet carrier; 16. Second planetary gear set; 161. Second sun gear; 162. Second planetary carrier; 163. Second gear ring; 164. First planetary gear; 165. Second planetary gear; 171. First input shaft; 172. First connecting device; 181. Second input shaft; 182. Second connecting device; 183. Second gear; 184. Intermediate gear; 19. Clutch components. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] The following is for reference. Figures 1-2The present application describes a drive assembly 10 for a vehicle, which includes an engine 11, an electric motor 12, a first gear 13, a first half-shaft 141, a first planetary gear set 15, a second half-shaft 142, and a second planetary gear set 16.

[0022] The motor 12 can be selectively connected to the engine 11 or the first gear 13. The first half-shaft 141 is connected to the first ring gear 151 of the first planetary gear set 15, and the first sun gear 152 of the first planetary gear set 15 is connected to the first gear 13 and arranged coaxially. The second half-shaft 142 is connected to the second sun gear 161 of the second planetary gear set 16. Alternatively, the second planetary gear set 16 is a double planetary gear set, with the second planet carrier 162 of the second planetary gear set 16 connected to the first planet carrier 153 of the first planetary gear set 15, and the second ring gear 163 of the second planetary gear set 16 locked; or, the second planetary gear set 16 is a single planetary gear set, with the second ring gear 163 of the second planetary gear set 16 connected to the first planet carrier 153 of the first planetary gear set 15, and the second planet carrier 162 of the second planetary gear set 16 locked.

[0023] Currently, in the design of general passenger vehicles, the engine typically rotates counterclockwise when viewed from the transmission end. Conventional transmissions are designed and adapted based on this rotation direction, enabling normal vehicle forward and reverse driving functions. However, in actual vehicle layout planning, there are special cases where engine placement is limited, causing the engine to rotate clockwise when viewed from the transmission end. In this case, if a conventional transmission is still used, when the electric motor switches from generator mode to drive mode, an additional mechanism is needed to change the rotation direction to match the transmission input requirements. This process significantly increases the power response delay, directly affecting vehicle acceleration performance and driving smoothness.

[0024] In response, this application proposes a vehicle drive assembly 10 that enables the motor 12 to rotate in the same direction when in power generation and driving states, resulting in faster response time and smoother transition.

[0025] Specifically, the drive assembly 10 may include an engine 11, a motor 12, a first gear 13, a first half-shaft 141, a first planetary gear set 15, a second half-shaft 142, and a second planetary gear set 16. The motor 12 can be selectively connected to either the engine 11 or the first gear 13. It is understood that the motor 12 can be connected to either the engine 11 or the first gear 13. In some embodiments, the selective engagement of the motor 12 can be achieved through a synchronizer or a clutch. The first planetary gear set 15 may include a first planetary gear set 15, a first sun gear 152, and a first ring gear 151. The first planetary gear set 15 can be connected to the first half-shaft 141, and the first sun gear 152 can be connected to the first gear 13. Furthermore, the first sun gear 152 and the first gear 13 can be arranged coaxially. This arrangement allows the first sun gear 152 and the first gear 13 to rotate in the same direction while also enabling power transmission. The second half-shaft 142 can be connected to the second sun gear 161 of the second planetary gear set 16.

[0026] Furthermore, the second planetary gear set 16 can be a double planetary gear planetary gear set or a single planetary gear planetary gear set. In one embodiment of this application, the second planetary gear set 16 is a double planetary gear planetary gear set. The second planetary carrier 162 of the second planetary gear set 16 can be connected to the first planetary carrier 153 for transmission. The second ring gear 163 of the second planetary gear set 16 is locked, that is, the second ring gear 163 is in a fixed state. At this time, the power of the first planetary carrier 153 can be transmitted to the second half-shaft 142 through the second planetary carrier 162, the double planetary gears and the second sun gear 161. Due to the adoption of the double planetary gear structure, the rotation direction of the first half-shaft 141 and the second half-shaft 142 is the same. And by setting the first gear 13 and the first sun gear 152 coaxially and connecting them for transmission, the vehicle can drive normally when the engine 11 rotates clockwise, that is, the input end steering and the output end steering are opposite.

[0027] In another embodiment of this application, the second planetary gear set 16 is a single planetary gear planetary gear set. The second ring gear 163 of the second planetary gear set 16 is connected to the first planetary carrier 153. The second planetary carrier 162 of the second planetary gear set 16 is locked, that is, the second planetary carrier 162 is in a fixed state. At this time, the power of the first planetary carrier 153 can be transmitted to the second half-shaft 142 through the second ring gear 163, the planetary gears and the second sun gear 161. Since the second ring gear 163 and the second sun gear 161 are used for power transmission, the rotation directions of the first half-shaft 141 and the second half-shaft 142 can be the same. And by setting the first gear 13 and the first sun gear 152 coaxially and connecting them in a transmission, the vehicle can be driven normally.

[0028] The drive assembly 10 of this application can have direct drive and range extender modes. The specific working states of the drive assembly 10 under various working modes are described below using embodiments of this application as examples.

[0029] In the direct-drive mode of motor 12, clutch 19 engages the second input shaft 181 with the second connecting device 182. Engine 11 does not work and is driven only by motor 12. Motor 12 is connected to first gear 13. Motor 12 outputs power to first gear 13. Part of the power is transmitted to first sun gear 152 through first gear 13, and then from first sun gear 152 and first ring gear 151 to first half-shaft 141. Another part of the power is transmitted to first sun gear 152 and first planetary carrier 153 through first gear 13, and then to second half-shaft 142 through second planetary carrier 162, double planetary gear and second sun gear 161, or through second ring gear 163, single planetary gear and second sun gear 161 to second half-shaft 142, thereby realizing that motor 12 drives first half-shaft 141 and second half-shaft 142 to rotate.

[0030] In range-extending mode, clutch 19 connects the second input shaft 181 to the first connecting device 172, and both engine 11 and motor 12 are working. Motor 12 is connected to engine 11 in a transmission manner. Motor 12 generates electricity through engine 11. The electrical energy generated by motor 12 can be stored in the vehicle's power battery, or the electrical energy generated by motor 12 can be used to drive other components of the vehicle. It should be noted that when motor 12 switches from generating state to driving state, the steering remains unchanged, and the response time is faster.

[0031] In short, the drive assembly 10 of this application embodiment is provided with a first planetary gear set 15 and a second planetary gear set 16. The first ring gear 151 of the first planetary gear set 15 is connected to the first half-shaft 141, and the second sun gear 161 of the second planetary gear set 16 is connected to the second half-shaft 142. By adopting the architecture of the first planetary gear set 15 and the second planetary gear set 16, the motor 12 rotates in the same direction in the power generation state and the driving state, resulting in a faster response time and a smoother transition.

[0032] like Figure 1 and Figure 2As shown, in some embodiments of this application, the drive assembly 10 further includes a first input shaft 171 and a second input shaft 181. The first input shaft 171 can be drivenly connected to the engine 11, and the second input shaft 181 can be loosely fitted around the first input shaft 171 and drivenly connected to the motor 12. The first input shaft 171 and the second input shaft 181 can be arranged coaxially to ensure the direction of power transmission. Furthermore, the second input shaft 181 being loosely fitted around the first input shaft 171 effectively reduces the space occupied by the first and second input shafts 171, improving the space utilization of the drive assembly 10. The second input shaft 181 can be selectively drivenly connected to the first input shaft 171 or the first gear 13. In the direct-drive mode of the motor 12, the second input shaft 181 is drivenly connected to the first gear 13. In the range-extending mode, the second input shaft 181 is drivenly connected to the first input shaft 171.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the drive assembly 10 may further include a first connecting device 172 and a second connecting device 182. The first connecting device 172 may be disposed at the end of the first input shaft 171, and the second connecting device 182 may be loosely fitted onto the second input shaft 181. A second gear 183 may be disposed on the outer periphery of the second connecting device 182. The second gear 183 and the first gear 13 can be connected by transmission through an intermediate wheel 184, thereby ensuring that the rotation directions of the first gear 13 and the second gear 183 are the same. In other embodiments, the second gear 183 and the first gear 13 can be driven by a chain. The second input shaft 181 may be selectively connected to either the first connecting device 172 or the second connecting device 182. With the above structure, the direction of rotation of the motor 12 remains unchanged when switching from the power generation state to the drive state, resulting in a faster response time.

[0034] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the drive assembly 10 further includes a clutch 19 connected to a second input shaft 181, and the clutch 19 can selectively engage the second input shaft 181 with one of a first connecting device 172 and a second connecting device 182.

[0035] As some embodiments of this application, the clutch 19 can be constructed as, but is not limited to, a synchronizer, a dog clutch, an electromagnetic clutch, a magnetic powder clutch, a friction clutch, a hydraulic clutch, etc. Of course, the clutch 19 can also be constructed as other types of synchronizers or clutches. It is understood that the specific type of clutch 19 can be selected according to actual needs, and this application does not limit it in this regard.

[0036] By configuring the clutch 19 and enabling the clutch 19 to selectively engage the second input shaft 181 with either the first connecting device 172 or the second connecting device 182, selective engagement of the second input shaft 181 with the first connecting device 172 or selective engagement of the second input shaft 181 with the second connecting device 182 can be achieved. Furthermore, this configuration allows for multiple gear positions in the drive assembly 10 to meet the needs of the vehicle.

[0037] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the first half-shaft 141, the second half-shaft 142, the first planetary gear set 15 and the second planetary gear set 16 are arranged coaxially. This arrangement can ensure that the vehicle can drive normally when the engine 11 rotates clockwise.

[0038] like Figure 1 As shown, in some embodiments of this application, the second planetary gear set 16 can be a double planetary gear set. The second planetary gear set 16 can have a first planetary gear 164 and a second planetary gear 165. The first planetary gear 164 can mesh with the second planetary gear 165. The first planetary gear 164 can mesh with the second sun gear 161. The second planetary gear 165 can mesh with the second ring gear 163. The second planetary carrier 162 is connected to the first planetary gear 164 and the second planetary gear 165 respectively. By adopting a double planetary gear structure, the rotation directions of the first half-shaft 141 and the second half-shaft 142 can be the same, ensuring that the vehicle can drive normally.

[0039] like Figure 2 As shown, in some embodiments of this application, when the second planetary gear set 16 is a single planetary gear set, the second planetary gear set 16 can be nested outside the first planetary gear set 15. This arrangement can reduce the space occupied by the first planetary gear set 15 and the second planetary gear set 16 while ensuring that the first planetary gear set 15 and the second planetary gear set 16 are arranged coaxially, thereby improving the space utilization of the drive assembly 10.

[0040] like Figure 1 and Figure 2 As shown, in some embodiments of this application, the drive assembly 10 further includes a housing, which can be used to house the first planetary gear set 15 and the second planetary gear set 16. Specifically, the housing can be used to house, but is not limited to, the first planetary gear set 15, the second planetary gear set 16, the engine 11, the motor 12, the first input shaft 171, the first connecting device 172, the second input shaft 181, the second connecting device 182, etc. As some embodiments of this application, at least a portion of the first planetary gear set 15, at least a portion of the second planetary gear set 16, a portion of the first input shaft 171, and a portion of the second input shaft 181 are all housed in the housing. As other embodiments of this application, at least a portion of the first planetary gear set 15 and at least a portion of the second planetary gear set 16 are housed in the housing.

[0041] As some embodiments of this application, the housing can be coupled to the second gear ring 163 or the second planetary carrier 162 through a coupling portion, thereby fixing the second gear ring 163 or the second planetary carrier 162. Specifically, when the second planetary gear set 16 is a double planetary gear set, the second gear ring 163 is fixedly connected to the coupling portion; when the second planetary gear set 16 is a single planetary gear set, the second planetary carrier 162 is fixedly connected to the coupling portion. This configuration can lock the second gear ring 163 or the second planetary carrier 162 to the housing, which helps to reduce the number of parts, improve the space utilization of the drive assembly 10, and the large weight of the housing helps to improve the locking effect of the second gear ring 163 and the third gear ring.

[0042] The vehicle of an embodiment of this application is described below.

[0043] The vehicle according to the present application embodiment is equipped with the drive assembly 10 of the above embodiment. Since the vehicle according to the present application embodiment is equipped with the drive assembly 10 of the above embodiment, the drive assembly 10 of the vehicle is provided with a first planetary gear set 15 and a second planetary gear set 16. The first ring gear 151 of the first planetary gear set 15 is driven to the first half shaft 141, and the second sun gear 161 of the second planetary gear set 16 is driven to the second half shaft 142. By adopting the architecture of the first planetary gear set 15 and the second planetary gear set 16, the motor 12 rotates in the same direction in the power generation state and the driving state, the response time is faster, and the transition is smoother.

[0044] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0045] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0046] In the description of this application, "multiple" means two or more.

[0047] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0048] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0049] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0050] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A drive assembly for a vehicle, characterized in that, include: Engine (11); The motor (12) and the first gear (13) are optionally connected to the engine (11) or the first gear (13). The first half-shaft (141) and the first planetary gear set (15) are connected in a transmission manner. The first half-shaft (141) is connected in a transmission manner to the first ring gear (151) of the first planetary gear set (15). The first sun gear (152) of the first planetary gear set (15) is connected in a transmission manner to the first gear (13) and is arranged coaxially. The second half-shaft (142) and the second planetary gear set (16) are connected in a transmission manner to the second sun gear (161) of the second planetary gear set (16); Wherein, the second planetary gear set (16) is a double planetary gear set, the second planetary carrier (162) of the second planetary gear set (16) is drivenly connected to the first planetary carrier (153) of the first planetary gear set (15), and the second ring gear (163) of the second planetary gear set (16) is locked; or, the second planetary gear set (16) is a single planetary gear set, the second ring gear (163) of the second planetary gear set (16) is drivenly connected to the first planetary carrier (153) of the first planetary gear set (15), and the second planetary carrier (162) of the second planetary gear set (16) is locked.

2. The drive assembly of the vehicle according to claim 1, characterized in that, Also includes: The first input shaft (171) is connected to the engine (11) in a transmission manner; The second input shaft (181) is loosely fitted around the first input shaft (171) and is connected to the motor (12) via transmission. The second input shaft (181) can be selectively connected to the first input shaft (171) or the first gear (13) via transmission.

3. The drive assembly of the vehicle according to claim 2, characterized in that, The first input shaft (171) and the second input shaft (181) are arranged coaxially.

4. The drive assembly of the vehicle according to claim 2, characterized in that, Also includes: A first connecting device (172) is disposed at the end of the first input shaft (171); The second connecting device (182) is loosely fitted onto the second input shaft (181), and a second gear (183) is provided on the outer periphery of the second connecting device (182). The second gear (183) is connected to the first gear (13) through an intermediate wheel (184) or by chain drive. The second input shaft (181) can be selectively connected to either the first connecting device (172) or the second connecting device (182).

5. The drive assembly of the vehicle according to claim 4, characterized in that, Also includes: A clutch (19) is connected to the second input shaft (181) and the clutch (19) can selectively engage the second input shaft (181) with one of the first connecting device (172) and the second connecting device (182).

6. The drive assembly of the vehicle according to claim 1, characterized in that, The first half-axis (141), the second half-axis (142), the first planetary array (15), and the second planetary array (16) are arranged coaxially.

7. The drive assembly of the vehicle according to claim 6, characterized in that, The second planetary gear set (16) is a double planetary gear set. The second planetary gear set (16) has a first planetary gear (164) and a second planetary gear (165). The first planetary gear (164) and the second planetary gear (165) mesh with each other. The first planetary gear (164) meshes with the second sun gear (161). The second planetary gear (165) meshes with the second ring gear (163). The second planetary carrier (162) is connected to the first planetary gear (164) and the second planetary gear (165) respectively.

8. The drive assembly of the vehicle according to claim 6, characterized in that, The second planetary gear (16) is a single planetary gear planetary gear, and the second planetary gear (16) is nested outside the first planetary gear (15).

9. The drive assembly of the vehicle according to claim 1, characterized in that, Also includes: A housing adapted to house the first planetary array (15) and the second planetary array (16). Wherein, when the second planetary gear set (16) is a double planetary gear set, the second gear ring (163) is fixedly connected to the housing; when the second planetary gear set (16) is a single planetary gear set, the second planetary carrier (162) is fixedly connected to the housing.

10. A vehicle, characterized in that, Includes the drive assembly as described in any one of claims 1-9.

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