Driving assembly of vehicle and vehicle

Abstract

The utility model discloses a driving assembly of a vehicle and the vehicle, and relates to the field of vehicles, the driving assembly of the vehicle comprises an engine and a first planet row, the engine is selectively combined with or disconnected from a first planet carrier of the first planet row; the first motor is in transmission connection with a first sun gear of the first planet row, the first planet carrier is selectively locked, and a first gear ring of the first planet row is selectively combined with or disconnected from the first planet carrier; the second motor is in transmission connection with the first gear ring and a second sun gear of the second planet row, a second gear ring of the second planet row is selectively locked, and the second motor is selectively combined with or disconnected from the second gear ring; and the output shaft is in transmission connection with a second planet carrier of the second planet row. Therefore, the driving assembly is simple and reasonable in structure and compact in layout, the number of parts can be reduced, the weight and cost of the driving assembly can be reduced, and in addition, the driving assembly gives consideration to fuel economy on the basis of having excellent power performance.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of vehicle, especially a kind of driving assembly of vehicle and vehicle. BACKGROUND

[0002] With the gradual strictness of national energy requirements, new energy vehicles also put forward new energy requirements for energy use. The existing vehicle driving assembly structure is complex, layout is scattered, and the number of parts is relatively large, which leads to high weight and cost of driving assembly. In addition, some existing driving assemblies are insufficient in power, and cannot meet the demand for off-road power and climbing. Some vehicles use hybrid AT transmission to realize non-decoupling four-wheel drive to meet the demand for off-road power, but the fuel consumption is high. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to provide a driving assembly of vehicle, which has superior power performance and fuel economy.

[0004] The utility model further provides a vehicle.

[0005] The driving assembly of the vehicle according to the utility model comprises: an engine and a first planetary gear set, the engine is selectively combined with or disconnected from a first carrier of the first planetary gear set; a first motor, the first motor is in transmission connection with a first sun gear of the first planetary gear set, the first carrier is selectively locked, a first ring gear of the first planetary gear set is selectively combined with or disconnected from the first carrier; a second motor and a second planetary gear set, the second motor is in transmission connection with the first ring gear and a second sun gear of the second planetary gear set, a second ring gear of the second planetary gear set is selectively locked, the second motor is selectively combined with or disconnected from the second ring gear; and an output shaft, the output shaft is in transmission connection with a second carrier of the second planetary gear set.

[0006] The driving assembly of the vehicle according to the utility model has simple and reasonable structure and compact layout, can reduce the number of parts, is conducive to reducing the weight and cost of the driving assembly, and has superior power performance and fuel economy.

[0007] In some examples of the utility model, when the second ring gear is locked, the second motor is disconnected from the second ring gear; when the second motor is combined with the second ring gear, the second ring gear is not locked.

[0008] In some examples of the utility model, when the engine is combined with the first carrier, the first carrier is combined with the first ring gear.

[0009] In some examples of the present application, when the first carrier is locked, the first carrier is disconnected from the first ring gear; when the first carrier is combined with the first ring gear, the first carrier is not locked.

[0010] In some examples of the present application, when the engine is combined with the first planet, the first carrier is disconnected from the first ring gear.

[0011] In some examples of the present application, the drive assembly of the vehicle further comprises: a first clutch connected between the input shaft of the engine and the first carrier to selectively combine the input shaft of the engine and the first carrier.

[0012] In some examples of the present application, the drive assembly of the vehicle further comprises: a second clutch connected between the first carrier and the first ring gear to selectively combine the first carrier and the first ring gear.

[0013] In some examples of the present application, the drive assembly of the vehicle further comprises: a third clutch connected between the second motor and the second ring gear to selectively combine the second motor and the second ring gear.

[0014] In some examples of the present application, the drive assembly of the vehicle further comprises: a housing, a first brake and a second brake, the first brake being connected between the housing and the first carrier and selectively combining the first carrier and the housing to lock the first carrier, the second brake being connected between the housing and the second ring gear and selectively combining the second ring gear and the housing to lock the second ring gear.

[0015] According to the vehicle of the present application, the drive assembly of the vehicle is as described above.

[0016] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description, including the accompanying drawings, wherein:

[0018] Figure 1 is a schematic diagram of the architecture of the drive assembly according to the embodiments of the present application;

[0019] Figure 2The power flow chart in the first parallel mode is shown in FIG. 6 according to an embodiment of the present application.

[0020] Figure 3 The power flow chart in the engine direct drive mode is shown in FIG. 5 according to an embodiment of the present application.

[0021] Figure 4 The power flow chart in the first parallel mode is shown in FIG. 6 according to an embodiment of the present application.

[0022] Figure 5 The power flow chart in the second parallel mode is shown in FIG. 7 according to an embodiment of the present application.

[0023] Figure 6 The power flow chart in the third parallel mode is shown in FIG. 8 according to an embodiment of the present application.

[0024] Figure 7 The power flow chart in the first range extending mode is shown in FIG. 9 according to an embodiment of the present application.

[0025] Figure 8 The power flow chart in the second range extending mode is shown in FIG. 10 according to an embodiment of the present application.

[0026] Figure 9 The power flow chart in the power split mode is shown in FIG. 11 according to an embodiment of the present application.

[0027] Reference signs:

[0028] Drive assembly 100; output shaft 99;

[0029] Engine 10; input shaft 11; first motor 20; second motor 30;

[0030] First planetary gear set 40; first carrier 41; first sun gear 42; first ring gear 43;

[0031] Second planetary gear set 50; second carrier 51; second sun gear 52; second ring gear 53;

[0032] First clutch 60; second clutch 61; third clutch 62;

[0033] Housing 70; first brake 71; second brake 72. DETAILED DESCRIPTION

[0034] Embodiments of the present application are described in detail below with reference to the attached drawings, wherein like reference numerals refer to like elements or elements with similar functions throughout the several views. The embodiments described below are examples of the present application, and are not intended to limit the present application.

[0035] Reference is made below Figures 1-9 A drive assembly 100 of a vehicle according to an embodiment of the present application is described.

[0036] As Figures 1-9 shown, the drive assembly 100 according to an embodiment of the present application comprises an engine 10, a first motor 20, a second motor 30, a first planetary gear set 40, a second planetary gear set 50 and an output shaft 99.

[0037] The engine 10 is selectively coupled or decoupled with a first carrier 41 of the first planetary gear set 40; the first motor 20 is in driving connection with a first sun gear 42 of the first planetary gear set 40, the first carrier 41 is selectively locked, a first ring gear 43 of the first planetary gear set 40 is selectively coupled or decoupled with the first carrier 41; the second motor 30 is in driving connection with the first ring gear 43 and a second sun gear 52 of the second planetary gear set 50, a second ring gear 53 of the second planetary gear set 50 is selectively locked, the second motor 30 is selectively coupled or decoupled with the second ring gear 53; the output shaft 99 is in driving connection with a second carrier 51 of the second planetary gear set 50.

[0038] The engine 10 is selectively coupled or decoupled with the first carrier 41 of the first planetary gear set 40, that is, the engine 10 can be coupled with the first carrier 41 to make the engine 10 in driving connection with the first carrier 41, or the engine 10 can be decoupled with the first carrier 41.

[0039] The first motor 20 is in driving connection with the first sun gear 42 of the first planetary gear set 40, and the driving connection between the first motor 20 and the first sun gear 42 can be but is not limited to spline connection, gear pair connection and the like, and as some embodiments of the present application, the first motor 20 is in spline connection with the first sun gear 42. The first carrier 41 is selectively locked, that is, the first carrier 41 can be locked, or the first carrier 41 can not be locked.

[0040] The first ring gear 43 of the first planetary gear set 40 is selectively coupled or decoupled with the first carrier 41, that is, the first ring gear 43 can be coupled with the first carrier 41, or the first ring gear 43 can be decoupled with the first carrier 41.

[0041] The second motor 30 is in transmission connection with the first ring gear 43. The transmission connection manner of the second motor 30 and the first ring gear 43 can be, but is not limited to, spline connection, gear pair connection and the like. As some embodiments of the present application, the first motor 20 is in gear pair connection with the first sun gear 42. The second motor 30 is in transmission connection with the second sun gear 52 of the second planetary gear set 50. The transmission connection manner of the second motor 30 and the second sun gear 52 can be, but is not limited to, spline connection, gear pair connection and the like. As some embodiments of the present application, the second motor 30 is in gear pair connection with the second sun gear 52.

[0042] The second ring gear 53 of the second planetary gear set 50 is selectively locked. That is, the second ring gear 53 can be locked, or the second ring gear 53 can not be locked.

[0043] The second motor 30 is selectively combined with or disconnected from the second ring gear 53. That is, the second motor 30 can be combined with the second ring gear 53 to make the second motor 30 in transmission connection with the second ring gear 53, or the second motor 30 can be disconnected from the second ring gear 53.

[0044] The output shaft 99 is in transmission connection with the second carrier 51 of the second planetary gear set 50. The transmission connection manner of the output shaft 99 and the second carrier 51 can be, but is not limited to, spline connection, gear pair connection and the like. As some embodiments of the present application, the output shaft 99 is in spline connection with the second carrier 51.

[0045] The driving assembly 100 proposed in the present application can have various working modes, including but not limited to pure electric mode, engine direct drive mode, parallel mode, range extending mode and power split mode and the like. The specific working states of the driving assembly 100 in various working modes are described in detail below.

[0046] The pure electric mode, as shown in FIG. 2, is that the driving assembly 100 is driven only by the second motor 30. The pure electric mode can be divided into pure electric first gear mode and pure electric second gear mode. Figure 2

[0047] In the pure electric first gear mode, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, and the power of the second motor 30 is transmitted to the second carrier 51 and the output shaft 99 through the second sun gear 52.

[0048] In the pure electric second gear mode, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53, and part of the power of the second motor 30 is transmitted to the second carrier 51 and the output shaft 99 through the second sun gear 52, and part of the power of the second motor 30 is transmitted to the second carrier 51 and the output shaft 99 through the second ring gear 53.

[0049] As shown in FIG. 3, Figure 2 Figure 2 ​​The middle red arrow represents the power flow in the pure electric first gear mode, and the green arrow represents the power flow in the pure electric second gear mode.

[0050] It should be noted that in the pure electric mode, the drive speed ratio of the second motor 30 in the pure electric first gear mode can be (1 + a2), and the drive speed ratio of the second motor 30 in the pure electric second gear mode can be (1), where a2 is the ratio of the number of teeth of the second ring gear 53 to the number of teeth of the second sun gear 52.

[0051] The engine direct drive mode, as shown in FIG. 6, in the engine direct drive mode, neither the first motor 20 nor the second motor 30 participates in driving, and only the engine 10 drives. The engine direct drive mode can be divided into a direct drive first gear mode and a direct drive second gear mode. Figure 3 In the direct drive first gear mode, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, and the engine 10 transmits power to the first carrier 41 and then to the first ring gear 43. After that, the power is transmitted from the first ring gear 43 to the second sun gear 52, and then transmitted from the second sun gear 52 to the second carrier 51 and the output shaft 99 to drive the vehicle.

[0052] In the direct drive second gear mode, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (at this time, the second motor 30 does not work, the second motor 30 is in transmission connection with the first ring gear 43, that is, the first ring gear 43 is in transmission connection with the second ring gear 53), and the engine 10 transmits power to the first carrier 41 and then to the first ring gear 43. After that, part of the power is transmitted from the second sun gear 52 to the second carrier 51 and the output shaft 99, and part of the power is transmitted from the second ring gear 53 to the second carrier 51 and the output shaft 99.

[0053] As shown in FIG. 7, the yellow arrow in the figure represents the power flow of the engine 10, the red arrow in the figure represents the power flow in the direct drive first gear mode, and the green arrow represents the power flow in the direct drive second gear mode.

[0054] Figure 3 The parallel mode, as shown in FIG. 8, wherein the parallel mode can be divided into a first parallel mode (the second motor 30 and the first motor 20 are in parallel driving), a second parallel mode (the second motor 30 and the engine 10 are in parallel driving), and a third parallel mode (the first motor 20, the second motor 30, and the engine 10 are in parallel driving).

[0055] The parallel mode, as shown in FIG. 8, wherein the parallel mode can be divided into a first parallel mode (the second motor 30 and the first motor 20 are in parallel driving), a second parallel mode (the second motor 30 and the engine 10 are in parallel driving), and a third parallel mode (the first motor 20, the second motor 30, and the engine 10 are in parallel driving). Figure 4 The parallel mode, as shown in FIG. 8, wherein the parallel mode can be divided into a first parallel mode (the second motor 30 and the first motor 20 are in parallel driving), a second parallel mode (the second motor 30 and the engine 10 are in parallel driving), and a third parallel mode (the first motor 20, the second motor 30, and the engine 10 are in parallel driving).

[0056] ​The first parallel mode is a mode in which the second motor 30 is driven in parallel with the first motor 20. The first parallel mode can be divided into a first parallel first-gear mode, a first parallel second-gear mode, a first parallel third-gear mode, and a first parallel fourth-gear mode according to power distribution.

[0057] In the first parallel first-gear mode, the first carrier 41 is locked, the first carrier 41 is disconnected from the first ring gear 43, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, the power of the first motor 20 is transmitted to the first ring gear 43 through the first sun gear 42, and then transmitted to the second carrier 51 and the output shaft 99 through the second sun gear 52 after being coupled with the power of the second motor 30.

[0058] In the first parallel first-gear mode, the torque of the output shaft 99 can be obtained by the following formula:

[0059] Tout=T GM *α1*(1+α2)+T TM *(1+α2)

[0060] wherein Tout is the torque of the output shaft 99, T GM is the torque of the first motor 20, T TM is the torque of the second motor 30, α1 is the ratio of the number of teeth of the first ring gear 43 to the number of teeth of the first sun gear 42, and α2 is the ratio of the number of teeth of the second ring gear 53 to the number of teeth of the second sun gear 52, which will not be described below.

[0061] In the first parallel second-gear mode, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the second ring gear is locked, the second motor 30 is disconnected from the second ring gear 53, the power of the first motor 20 is transmitted to the first carrier 41 and the first ring gear 43 through the first sun gear 42, and then transmitted to the second carrier 51 and the output shaft 99 through the second sun gear 52 after being coupled with the power of the second motor 30.

[0062] In the first parallel second-gear mode, the torque of the output shaft 99 can be obtained by the following formula:

[0063] Tout=T GM *α1*(1+α2)+T TM *(1+α2)

[0064] In the first parallel third-gear mode, the first carrier 41 is locked, the first carrier 41 is disconnected from the first ring gear 43, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (which can be understood as the first ring gear 43 being drivingly connected to the second ring gear 53), the power of the first motor 20 is transmitted to the first ring gear 43 through the first sun gear 42, and then transmitted to the second carrier 51 and the output shaft 99 through the second ring gear 53 and the second sun gear 52 after being coupled with the power of the second motor 30.

[0065] In the first parallel three-speed mode, the torque of the output shaft 99 can be obtained from the following formula:

[0066] Tout = T GM *(1+α2)+T TM

[0067] In the first parallel four-speed mode, the first ring gear 43 is engaged with the first planetary carrier 41, the first planetary carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is engaged with the second ring gear 53 (which can be understood as the first ring gear 43 and the second ring gear 53 being connected by transmission), the power of the first motor 20 is transmitted from the first sun gear 42 to the first planetary carrier 41 and the first ring gear 43, and then coupled with the power of the second motor 30, it is transmitted from the second ring gear 53 and the second sun gear 52 to the second planetary carrier 51 and the output shaft 99.

[0068] In the first parallel fourth gear mode, the torque of the output shaft 99 can be obtained from the following formula:

[0069] Tout = T GM +T TM

[0070] like Figure 4 As shown in the figure, the red arrows represent the power flow in the first parallel first gear mode and the first parallel second gear mode, and the yellow arrows represent the power flow in the first parallel third gear mode and the first parallel fourth gear mode.

[0071] The second parallel mode, such as Figure 5 As shown, in the second parallel mode, the second motor 30 drives the engine 10 in parallel. The second parallel mode can be divided into the second parallel first gear mode and the second parallel second gear mode according to the power.

[0072] In the second parallel first gear mode, the engine 10 is engaged with the first planetary carrier 41, the first ring gear 43 is engaged with the first planetary carrier 41, the first planetary carrier 41 is not locked, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, the power of the engine 10 is transmitted to the first planetary carrier 41 and the first ring gear 43, and then coupled with the power of the second motor 30 to the second sun gear 52, and then transmitted from the second sun gear 52 to the second planetary carrier 51 and the output shaft 99.

[0073] In the second parallel second gear mode, the engine 10 is engaged with the first planetary carrier 41, the first ring gear 43 is engaged with the first planetary carrier 41, the first planetary carrier 41 is not locked, the second ring gear 53 is not locked, and the second motor 30 is engaged with the second ring gear 53 (which can be understood as the first ring gear 43 and the second ring gear 53 being connected by transmission). The power of the engine 10 is transmitted from the first sun gear 42 to the first planetary carrier 41 and the first ring gear 43, and then coupled with the power of the second motor 30 to the second ring gear 53 and the second sun gear 52. The power is then transmitted from the second ring gear 53 and the second sun gear 52 to the second planetary carrier 51 and the output shaft 99.

[0074] like Figure 5 As shown in the figure, the green arrow represents the power flow of the second motor 30, and the yellow arrow represents the power flow of the engine 10.

[0075] The third parallel mode, such as Figure 6 As shown, in the third parallel mode, the first motor 20, the second motor 30 and the engine 10 drive in parallel. The third parallel mode can be divided into the third parallel first gear mode and the third parallel second gear mode according to the power.

[0076] In the third parallel first gear mode, the engine 10 is engaged with the first planetary carrier 41, the first ring gear 43 is engaged with the first planetary carrier 41, the first planetary carrier 41 is not locked, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, the power of the engine 10 is transmitted to the first planetary carrier 41, the power of the first motor 20 is transmitted to the first sun gear 42, the power of the engine 10 and the power of the first motor 20 are coupled together after coupling with the first ring gear 43 and then coupled with the power of the second motor 30 to the second sun gear 52, and then transmitted from the second sun gear 52 to the second planetary carrier 51 and the output shaft 99.

[0077] In the third parallel second gear mode, the first ring gear 43 is engaged with the first planetary carrier 41, the first planetary carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is engaged with the second ring gear 53 (which can be understood as the first ring gear 43 and the second ring gear 53 being connected by transmission), the power of the engine 10 is transmitted to the first planetary carrier 41, the power of the first motor 20 is transmitted to the first sun gear 42, the power of the engine 10 and the power of the first motor 20 are coupled together after coupling with the first ring gear 43 and the power of the second motor 30 and transmitted to the second ring gear 53 and the second sun gear 52, and then transmitted from the second ring gear 53 and the second sun gear 52 to the second planetary carrier 51 and the output shaft 99.

[0078] like Figure 6 As shown in the figure, the green arrow represents the power flow of the second motor 30, the yellow arrow represents the power flow of the engine 10, and the red arrow represents the power flow of the first motor 20.

[0079] Range extender mode, such as Figure 7and Figure 8 As shown in FIG. 6, the extended range mode can be divided into a first extended range mode and a second extended range mode, and the first extended range mode can be understood as an empty-gear extended range. The first extended range mode can be divided into a first extended range-gear one mode and a first extended range-gear two mode.

[0080] In the first extended range-gear one mode, as shown in FIG. 7, the engine 10 drives the first motor 20 to generate electricity. Specifically, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, and the first carrier 41 is not locked. The first carrier 41 and the first ring gear 43 are driven by the engine 10, the first sun gear 42 is driven by the first carrier 41 and the first ring gear 43, and the first motor 20 is driven to rotate to generate electricity. Figure 7

[0081] In the first extended range-gear two mode, as shown in FIG. 8, the engine 10 drives the first motor 20 and the second motor 30 to generate electricity. Specifically, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, and the first carrier 41 is not locked. The first carrier 41 and the first ring gear 43 are driven by the engine 10, the first sun gear 42 is driven by the first carrier 41 and the first ring gear 43, and the first motor 20 is driven to rotate to generate electricity. The first ring gear 43 can drive the second motor 30 to generate electricity to improve the electricity generation efficiency. Figure 7 As shown in FIG. 9, the yellow arrow in the figure represents the power flow of the engine 10 driving the first motor 20, and the green arrow in the figure represents the power flow of the engine 10 driving the second motor 30.

[0082] Figure 7 The second extended range mode, as shown in FIG. 10, can be understood as an in-gear extended range. In the second extended range mode, the engine 10 is combined with the first carrier 41, the engine 10 can drive the first planetary gear set 40, and the second motor 30 can drive the first ring gear 43 to load to transmit power to the first sun gear 42, thereby generating electricity in the gear extended range.

[0083] As shown in FIG. 11, the yellow arrow in the figure represents the power flow of the engine 10, the green arrow in the figure represents the power flow of the second motor 30, and the red arrow in the figure represents the power flow of the first motor 20. Figure 8 The power split mode, as shown in FIG. 12, can be divided into a first power split mode and a second power split mode.

[0084] Figure 8 As shown in FIG. 13, the yellow arrow in the figure represents the power flow of the engine 10, the green arrow in the figure represents the power flow of the second motor 30, and the red arrow in the figure represents the power flow of the first motor 20.

[0085] The power split mode, as shown in FIG. 12, can be divided into a first power split mode and a second power split mode. Figure 9

[0086] ​​​​In the first power split mode, the engine 10 is engaged with the first planetary carrier 41, the first planetary carrier 41 is disengaged from the first ring gear 43, and the second ring gear 53 is locked. The engine 10 drives the first planetary carrier 41, and the first motor 20 drives the first sun gear 42. The power of the first ring gear 43 can be continuously variable by adjusting the speed of the first motor 20. After the power is transmitted to the second sun gear 52, it can be transmitted to the output shaft 99 through the second planetary carrier 51. As some embodiments of this application, in the first power split mode, the second motor 30 can participate in the drive. Specifically, the power of the engine 10 and the first motor 20 is transmitted to the second sun gear 52 after the power of the first ring gear 43 and the second motor 30 is coupled. The power can be transmitted to the output shaft 99 through the second sun gear 52 and the second planetary carrier 51.

[0087] In the second power split mode, the engine 10 is engaged with the first planetary carrier 41, the first planetary carrier 41 is disengaged from the first ring gear 43, and the second ring gear 53 is engaged with the second motor 30. The engine 10 drives the first planetary carrier 41, and the first motor 20 can drive the first sun gear 42. The power of the first ring gear 43 can be continuously variable by adjusting the speed of the first motor 20. After the power is transmitted to the second sun gear 52 and the second ring gear 53, it can be transmitted to the output shaft 99 through the second planetary carrier 51.

[0088] As some embodiments of this application, in the second power split mode, the second motor 30 can participate in the drive. Specifically, the power of the engine 10 and the first motor 20 is transmitted to the second sun gear 52 and the second ring gear 53 after the power of the first ring gear 43 and the second motor 30 are coupled. The power is then transmitted to the second planetary carrier 51 through the second sun gear 52 and the second ring gear 53, so as to transmit the power to the output shaft 99.

[0089] like Figure 9 As shown in the figure, the yellow arrow represents the power flow of the engine 10, the green arrow represents the power flow of the second motor 30, and the red arrow represents the power flow of the first motor 20.

[0090] It is understandable that the difference between the power split mode and the third parallel mode lies in whether the first planetary carrier 41 is engaged with the first ring gear 43. If the first planetary carrier 41 is engaged with the first ring gear 43, then the mode is the third parallel mode. If the first planetary carrier 41 is not engaged with the first ring gear 43, then the mode is the power split mode. Furthermore, it is understandable that the drive assembly 100 can switch between the third parallel mode and the power split mode by switching the first planetary carrier 41 and the first ring gear 43 between engagement and non-engagement.

[0091] It should be noted that the above description of various modes of operation is only an exemplary description, and does not represent that the driving assembly 100 proposed in the present application is limited to the above modes of operation, nor does it limit the driving assembly 100 proposed in the present application through the above modes of operation.

[0092] Therefore, the driving assembly 100 proposed in the present application has simple and reasonable structure and compact layout, can reduce the number of parts, and is conducive to reducing the weight and cost of the driving assembly 100. In addition, the driving assembly 100 proposed in the present application has superior power performance and fuel economy.

[0093] In some embodiments of the present application, as shown in Figure 2 , when the second motor 30 is combined with the second ring gear 53, the second ring gear 53 is not locked.

[0094] As some embodiments of the present application, in the pure electric first gear mode, the second ring gear 53 is locked, the second motor 30 is disconnected from the second ring gear 53, and the power of the second motor 30 is transmitted to the second sun gear 52, the second planet carrier 51 and the output shaft 99 through the second sun gear 52, to drive the vehicle to run.

[0095] As some embodiments of the present application, in the pure electric second gear mode, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53, and part of the power of the second motor 30 is transmitted to the second planet carrier 51 and the output shaft 99 through the second sun gear 52, and part of the power is transmitted to the second planet carrier 51 and the output shaft 99 through the second ring gear 53.

[0096] Such arrangement can optimize the force transmission path of the driving assembly 100, realize flexible switching of different gear modes, and reasonably control the locking state of the second ring gear 53 and the connection relationship with the second motor 30, which is conducive to improving the structural rationality of the driving assembly 100.

[0097] In some embodiments of the present application, as shown in Figure 3 , Figures 5-7 , when the engine 10 is combined with the first planet carrier 41, the first planet carrier 41 is combined with the first ring gear.

[0098] As some embodiments of the present application, in the direct drive first gear mode, the engine 10 is combined with the first planet carrier 41, the first planet carrier 41 is combined with the first ring gear 43, the first planet carrier 41 is not locked, the second ring gear 53 is locked, and the second motor 30 is disconnected from the second ring gear 53. The engine 10 transmits power to the first planet carrier 41, then to the first ring gear 43, and then to the second sun gear 52 through the first ring gear 43, and then to the second planet carrier 51 and the output shaft 99 through the second sun gear 52, to drive the vehicle to run.

[0099] As some embodiments of the present application, in the direct drive two-gear mode, the engine 10 is combined with the first planet carrier 41, the first planet carrier 41 is combined with the first ring gear 43, the first planet carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (at this time, the second motor 30 does not work, the second motor 30 is in transmission connection with the first ring gear 43, that is, the first ring gear 43 is in transmission connection with the second ring gear 53), the engine 10 transmits power to the first planet carrier 41 and then to the first ring gear 43, and then part of the power is transmitted to the second planet carrier 51 and the output shaft 99 through the second sun gear 52, and part of the power is transmitted to the second planet carrier 51 and the output shaft 99 through the second ring gear 53.

[0100] As some embodiments of the present application, in the third parallel one-gear mode, the engine 10 is combined with the first planet carrier 41, the first planet carrier 41 is combined with the first ring gear 43, the first planet carrier 41 is not locked, the second ring gear 53 is locked, and the second motor 30 is disconnected from the second ring gear 53. The power of the engine 10 is transmitted to the first planet carrier 41, the power of the first motor 20 is transmitted to the first sun gear 42, and the power of the engine 10 and the power of the first motor 20 are coupled after being coupled at the first ring gear 43 and then coupled with the power of the second motor 30 to be transmitted to the second sun gear 52, and then transmitted to the second planet carrier 51 and the output shaft 99 by the second sun gear 52.

[0101] As some embodiments of the present application, in the third parallel two-gear mode, the first ring gear 43 is combined with the first planet carrier 41, the first planet carrier 41 is not locked, the second ring gear 53 is not locked, and the second motor 30 is combined with the second ring gear 53 (it can be understood that the first ring gear 43 is in transmission connection with the second ring gear 53). The power of the engine 10 is transmitted to the first planet carrier 41, the power of the first motor 20 is transmitted to the first sun gear 42, the power of the engine 10 and the power of the first motor 20 are coupled after being coupled at the first ring gear 43, and then coupled with the power of the second motor 30 to be transmitted to the second ring gear 53 and the second sun gear 52, and then transmitted to the second planet carrier 51 and the output shaft 99 by the second ring gear 53 and the second sun gear 52.

[0102] As some embodiments of the present application, in the second parallel one-gear mode, the engine 10 is combined with the first planet carrier 41, the first ring gear 43 is combined with the first planet carrier 41, the first planet carrier 41 is not locked, the second ring gear 53 is locked, and the second motor 30 is disconnected from the second ring gear 53. The power of the engine 10 is transmitted to the first planet carrier 41 and the first ring gear 43, and then coupled with the power of the second motor 30 to be transmitted to the second sun gear 52, and then transmitted to the second planet carrier 51 and the output shaft 99 by the second sun gear 52.

[0103] As some embodiments of the present application, in the second parallel two-gear mode, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (it can be understood that the first ring gear 43 and the second ring gear 53 are in transmission connection), the power of the engine 10 is transmitted to the first carrier 41 and the first ring gear 43 through the first sun gear 42, and then coupled with the power of the second motor 30 to be transmitted to the second ring gear 53 and the second sun gear 52, and then transmitted to the second carrier 51 and the output shaft 99 through the second ring gear 53 and the second sun gear 52.

[0104] As some embodiments of the present application, in the first range-extended one-gear mode, the engine 10 drives the first motor 20 to generate electricity, specifically, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the first carrier 41 and the first ring gear 43 are driven by the engine 10, the first sun gear 42 is driven by the first carrier 41 and the first ring gear 43, and the first motor 20 is further driven to rotate to generate electricity.

[0105] As some embodiments of the present application, in the first range-extended two-gear mode, the engine 10 drives the first motor 20 and the second motor 30 to generate electricity, specifically, the engine 10 is combined with the first carrier 41, the first ring gear 43 is combined with the first carrier 41, the first carrier 41 is not locked, the first carrier 41 and the first ring gear 43 are driven by the engine 10, the first sun gear 42 is driven by the first carrier 41 and the first ring gear 43, and the first motor 20 is further driven to rotate to generate electricity, and the first ring gear 43 can drive the second motor 30 to generate electricity to improve the electricity generation efficiency.

[0106] The power of the engine 10 can be effectively transmitted, different working modes can be realized, the engine 10 can be kept in a suitable working interval in some working modes, the fuel consumption of the vehicle is significantly reduced, and the power performance of the vehicle is improved.

[0107] In some embodiments of the present application, as shown in Figures 3-5 When the first carrier 41 is locked, the first carrier 41 is disconnected from the first ring gear 43; when the first carrier 41 is combined with the first ring gear 43, the first carrier 41 is not locked.

[0108] As some embodiments of the application, in the first parallel first gear mode, the first planet carrier 41 is locked, the first planet carrier 41 is disconnected with the first ring gear 43, the second ring gear 53 is locked, the second motor 30 is disconnected with the second ring gear 53, the power of the first motor 20 is transmitted to the first ring gear 43 through the first sun gear 42, and then coupled with the power of the second motor 30 and transmitted to the second planet carrier 51 and the output shaft 99 through the second sun gear 52.

[0109] As some embodiments of the application, in the first parallel second gear mode, the first ring gear 43 is combined with the first planet carrier 41, the first planet carrier 41 is not locked, the second ring gear is locked, the second motor 30 is disconnected with the second ring gear 53, the power of the first motor 20 is transmitted to the first planet carrier 41 and the first ring gear 43 through the first sun gear 42, and then coupled with the power of the second motor 30 and transmitted to the second planet carrier 51 and the output shaft 99 through the second sun gear 52.

[0110] As some embodiments of the application, in the first parallel third gear mode, the first planet carrier 41 is locked, the first planet carrier 41 is disconnected with the first ring gear 43, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (it can be understood that the first ring gear 43 is in transmission connection with the second ring gear 53), the power of the first motor 20 is transmitted to the first ring gear 43 through the first sun gear 42, and then coupled with the power of the second motor 30 and transmitted to the second planet carrier 51 and the output shaft 99 through the second ring gear 53 and the second sun gear 52.

[0111] As some embodiments of the application, in the first parallel fourth gear mode, the first ring gear 43 is combined with the first planet carrier 41, the first planet carrier 41 is not locked, the second ring gear 53 is not locked, the second motor 30 is combined with the second ring gear 53 (it can be understood that the first ring gear 43 is in transmission connection with the second ring gear 53), the power of the first motor 20 is transmitted to the first planet carrier 41 and the first ring gear 43 through the first sun gear 42, and then coupled with the power of the second motor 30 and transmitted to the second planet carrier 51 and the output shaft 99 through the second ring gear 53 and the second sun gear 52.

[0112] The arrangement can optimize the power transmission path of the driving assembly 100, realize flexible switching of different gear modes, reasonably control the locking state of the first ring gear 43 and the connection relationship between the first ring gear 43 and the first planet carrier 41, and reasonably control the locking state of the second ring gear 53 and the connection relationship between the second ring gear 53 and the second motor 30, thereby improving the structural rationality of the driving assembly 100.

[0113] In some embodiments of the utility model, as shown in Figures 3-5 When the engine 10 is combined with the first planet carrier 41, the first planet carrier 41 is disconnected with the first ring gear 43.

[0114] As some embodiments of the present application, in the first power split mode, the engine 10 is combined with the first carrier 41, the first carrier 41 is disconnected from the first ring gear 43, the second ring gear 53 is locked, the engine 10 drives the first carrier 41, the first motor 20 can drive the first sun gear 42, and the power of the first ring gear 43 can be adjusted steplessly by adjusting the rotating speed of the first motor 20. The power is transmitted to the second sun gear 52 through the second carrier 51 and then transmitted to the output shaft 99.

[0115] As some embodiments of the present application, in the first power split mode, the second motor 30 can participate in driving. Specifically, the power of the engine 10 and the first motor 20 is coupled to the power of the second motor 30 after the power of the first ring gear 43, and then transmitted to the second sun gear 52. The power is transmitted to the output shaft 99 through the second sun gear 52 and the second carrier 51.

[0116] As some embodiments of the present application, in the second power split mode, the engine 10 is combined with the first carrier 41, the first carrier 41 is disconnected from the first ring gear 43, the second ring gear 53 is combined with the second motor 30, the engine 10 drives the first carrier 41, the first motor 20 can drive the first sun gear 42, and the power of the first ring gear 43 can be adjusted steplessly by adjusting the rotating speed of the first motor 20. The power is transmitted to the second sun gear 52 and the second ring gear 53 through the second carrier 51 and then transmitted to the output shaft 99.

[0117] As some embodiments of the present application, in the second power split mode, the second motor 30 can participate in driving. Specifically, the power of the engine 10 and the first motor 20 is coupled to the power of the second motor 30 after the power of the first ring gear 43, and then transmitted to the second sun gear 52 and the second ring gear 53. The power is transmitted to the second carrier 51 through the second sun gear 52 and the second ring gear 53 to be transmitted to the output shaft 99.

[0118] As some embodiments of the present application, the second range extending mode can be understood as in-range extending. In the second range extending mode, the engine 10 is combined with the first carrier 41, the first carrier 41 is disconnected from the first ring gear 43, the engine 10 can drive the first planetary gear set 40, and the second motor 30 can drive the first ring gear 43 to load the power to the first sun gear 42 to generate electricity in the range extending mode.

[0119] Such arrangement improves the efficiency of the engine 10, can realize different working modes, keeps the engine 10 in a suitable working interval in some working modes, significantly reduces the fuel consumption of the vehicle, is beneficial to improve the power performance of the vehicle, and can realize power split and stepless speed regulation to improve the efficiency of the engine 10 and is beneficial to improve the cruising range of the vehicle.

[0120] In some embodiments of the utility model, as shown in Figures 1-9 The driving assembly 100 of the vehicle further comprises a first clutch 60, which is connected between the input shaft 11 of the engine 10 and the first planet carrier 41, so as to selectively connect the input shaft 11 of the engine 10 and the first planet carrier 41, that is, the input shaft 11 of the engine 10 can be selectively connected with the first planet carrier 41 through the first clutch 60.

[0121] As some embodiments of the application, the first clutch 60 can be configured as, but not limited to, an electromagnetic clutch, a magnetic powder clutch, a friction clutch, a hydraulic clutch, etc. Of course, the first clutch 60 can also be configured as other types of clutches. It can be understood that the specific type of the first clutch 60 can be selected according to actual needs, and the application does not limit this.

[0122] By setting the first clutch 60 and connecting the first clutch 60 between the input shaft 11 of the engine 10 and the first planet carrier 41, the selective connection of the output shaft 99 of the engine 10 and the first planet carrier 41 can be realized, and such a setting can make the connection of the input shaft 11 of the engine 10 and the first planet carrier 41 reliable, which is beneficial to improve the working reliability of the driving assembly 100.

[0123] In some embodiments of the utility model, as shown in Figures 1-9 The driving assembly 100 of the vehicle further comprises a second clutch 61, which is connected between the first planet carrier 41 and the first ring gear 43, so as to selectively connect the first planet carrier 41 and the first ring gear 43, that is, the first planet carrier 41 can be selectively connected with the first ring gear 43 through the second clutch 61.

[0124] As some embodiments of the application, the second clutch 61 can be configured as, but not limited to, an electromagnetic clutch, a magnetic powder clutch, a friction clutch, a hydraulic clutch, etc. Of course, the second clutch 61 can also be configured as other types of clutches. It can be understood that the specific type of the second clutch 61 can be selected according to actual needs, and the application does not limit this.

[0125] By setting the second clutch 61 and connecting the second clutch 61 between the first planet carrier 41 and the first ring gear 43, the selective connection of the first planet carrier 41 and the first ring gear 43 can be realized, and such a setting can make the connection of the first planet carrier 41 and the first ring gear 43 reliable, which is beneficial to improve the working reliability of the driving assembly 100.

[0126] In some embodiments of the utility model, as shown in Figures 1-9As shown, the driving assembly 100 of the vehicle further comprises a third clutch 62 connected between the second motor 30 and the second ring gear 53 to selectively couple the second motor 30 and the second ring gear 53, that is, the second motor 30 can be selectively coupled with the second ring gear 53 through the third clutch 62.

[0127] As some embodiments of the present application, the third clutch 62 can be configured as, but not limited to, an electromagnetic clutch, a magnetic powder clutch, a friction clutch, a hydraulic clutch, etc., of course, the third clutch 62 can also be configured as other types of clutches, and it can be understood that the specific type of the third clutch 62 can be selected according to actual needs, and the present application does not limit this.

[0128] By arranging the third clutch 62 and connecting the third clutch 62 between the second motor 30 and the second ring gear 53, the selective coupling of the second motor 30 and the second ring gear 53 can be realized, and such arrangement can make the connection of the second motor 30 and the second ring gear 53 reliable, which is beneficial to improve the working reliability of the driving assembly 100.

[0129] In some embodiments of the present application, as shown in Figures 1-9 Figures 1-9 As shown, the driving assembly 100 of the vehicle further comprises a housing 70, a first brake 71 and a second brake 72, the first brake 71 is connected between the housing 70 and the first carrier 41 and selectively couples the first carrier 41 and the housing 70 to lock the first carrier 41, and the second brake 72 is connected between the housing 70 and the second ring gear 53 and selectively couples the second ring gear 53 and the housing 70 to lock the second ring gear 53.

[0130] Among them, the housing 70 can be used to accommodate, but not limited to, the first planetary row 40, the second planetary row 50, the engine 10 and the output shaft 99, etc., as some embodiments of the present application, at least part of the first planetary row 40, at least part of the second planetary row 50 and part of the output shaft 99 are accommodated in the housing 70, as some embodiments of the present application, at least part of the first planetary row 40 and at least part of the second planetary row 50 are accommodated in the housing 70.

[0131] Among them, the first brake 71 is connected between the housing 70 and the first carrier 41, and the first brake 71 can selectively couple the first carrier 41 and the housing 70, that is, the first carrier 41 can be selectively coupled with the housing 70 through the first brake 71 to be locked.

[0132] The second brake 72 is connected between the housing 70 and the second ring gear 53, and the second brake 72 can selectively combine the second ring gear 53 and the housing 70, that is, the second ring gear 53 can be selectively combined with the housing 70 by the second brake 72 to be locked.

[0133] As some embodiments of the present application, the housing 70 can have a first combination part for being combined with the first brake 71, the first brake 71 can combine the first combination part with the first carrier 41 to lock the first carrier 41, and the housing 70 can have a second combination part for being combined with the second brake 72, the second brake 72 can combine the second combination part with the second ring gear 53 to lock the second ring gear 53.

[0134] In this way, the first carrier 41 and the second ring gear 53 can be locked with the housing 70, which is beneficial to reduce the number of parts, improve the space utilization of the drive assembly 100, and the housing 70 has a large weight, which is beneficial to improve the locking effect of the first carrier 41 and the second ring gear 53.

[0135] The vehicle according to the embodiments of the present application comprises the drive assembly 100 of the vehicle of the above-mentioned embodiments, the drive assembly 100 proposed in the present application has simple and reasonable structure and compact layout, which can reduce the number of parts, is beneficial to reduce the weight and cost of the drive assembly 100, and in addition, the drive assembly 100 proposed in the present application has superior power performance and fuel economy.

[0136] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0137] In the description of the present application, "a first feature" and "a second feature" can include one or more features.

[0138] In the description of the present application, "a plurality of" means two or more.

[0139] In the description of the utility model, the first feature is "above" or "below" the second feature, which can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them.

[0140] In the description of the utility model, the first feature is "above", "upper" and "on" the second feature, which includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height.

[0141] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the utility model. In the description, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0142] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and their equivalents.

Claims

1. A drive assembly (100) of a vehicle, characterized in that, Comprising: an engine (10) and a first planetary gear set (40), the engine (10) being selectively coupled or decoupled with a first carrier (41) of the first planetary gear set (40); a first motor (20) being drivingly connected with a first sun gear (42) of the first planetary gear set (40), the first carrier (41) being selectively locked, a first ring gear (43) of the first planetary gear set (40) being selectively coupled or decoupled with the first carrier (41); a second motor (30) and a second planetary gear set (50), the second motor (30) being drivingly connected with the first ring gear (43), a second sun gear (52) of the second planetary gear set (50), a second ring gear (53) of the second planetary gear set (50) being selectively locked, the second motor (30) being selectively coupled or decoupled with the second ring gear (53); an output shaft (99) being drivingly connected with a second carrier (51) of the second planetary gear set (50).

2. The drive assembly (100) of the vehicle according to claim 1, characterized in that, When the second ring gear (53) is locked, the second motor (30) is decoupled with the second ring gear (53); when the second motor (30) is coupled with the second ring gear (53), the second ring gear (53) is not locked.

3. A drive assembly (100) for a vehicle according to claim 1 or 2, characterized in that When the engine (10) is coupled with the first carrier (41), the first carrier (41) is coupled with the first ring gear.

4. The drive assembly (100) of claim 2, wherein, When the first carrier (41) is locked, the first carrier (41) is decoupled with the first ring gear (43); when the first carrier (41) is coupled with the first ring gear (43), the first carrier (41) is not locked.

5. The drive assembly of claim 2, wherein, When the engine (10) is coupled with the first carrier (41), the first carrier (41) is decoupled with the first ring gear (43).

6. The drive assembly (100) of claim 1, wherein, Further comprising: a first clutch (60) connected between an input shaft (11) of the engine (10) and the first carrier (41) to selectively couple the input shaft (11) of the engine (10) with the first carrier (41).

7. The drive assembly (100) of claim 1, wherein, Further comprising: a second clutch (61) connected between the first carrier (41) and the first ring gear (43) to selectively couple the first carrier (41) with the first ring gear (43).

8. The drive assembly (100) of claim 1, wherein, Further comprising: a third clutch (62) connected between the second motor (30) and the second ring gear (53) to selectively couple the second motor (30) with the second ring gear (53).

9. The drive assembly (100) of claim 1, wherein, Further comprising: A housing (70), a first brake (71) connected between the housing (70) and the first carrier (41) and selectively coupling the first carrier (41) and the housing (70) to lock the first carrier (41), and a second brake (72) connected between the housing (70) and the second ring gear (53) and selectively coupling the second ring gear (53) and the housing (70) to lock the second ring gear (53).

10. A vehicle characterized by comprising: A drive assembly (100) for a vehicle comprising a vehicle according to any one of claims 1-9.

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