Hybrid Power Assemblies and Vehicles

Abstract

Hybrid power assembly (1000) and vehicle. The hybrid power assembly (1000) comprises a transmission member (11), a first clutch (15), a second clutch (16), a first motor (200), an engine (300), and a reversing part (700). The first clutch (15) is in transmission connection with both the engine output shaft (301) and the transmission member (11). The second clutch (16) is connected between the transmission member (11) and the reversing part (700). The reversing part (700) is connected between the second clutch (16) and a first drive wheel (2000). The first motor (200) is in transmission connection with the transmission member (11). Reversal is effected by a reversing section (700) to enable the direction of rotation of the engine output shaft (301) to be the same as the direction of rotation of the first drive wheel (2000).

Description

[Technical field]

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS This disclosure claims priority to Chinese Patent Application No. 202221383164.3, filed on May 31, 2022. The entire contents of the above application are incorporated herein by reference.

[0002] The present disclosure relates to the field of vehicles, and more particularly to hybrid powertrains and vehicles including hybrid powertrains. [Background technology]

[0003] In the related art, the hybrid powertrain of existing vehicles has a complex structure, and multiple electric machines and multiple engines are usually required to implement the hybrid mode. Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure aims to solve at least one of the technical problems existing in the related art. Therefore, the objective of the present disclosure is to provide a hybrid powertrain. The hybrid powertrain has a simple structure and is easy to be arranged on a vehicle. In addition, the rotation direction of the engine output shaft is the same as the rotation direction of the first driving wheel to drive the vehicle to run forward and ensure that the vehicle runs normally.

[0005] The present disclosure further provides a vehicle. [Means for solving the problem]

[0006] The hybrid powertrain in this disclosure is The transmission includes a drive member, a first clutch, a second clutch, a first electric machine, an engine, and a reversing component.

[0007] A first clutch is drivingly connected to both the engine output shaft of the engine and the drive member for selectively connecting the drive member and the engine output shaft.

[0008] A second clutch is connected between the drive member and the reversing component, and the reversing component is connected between the second clutch and the first drive wheel for selectively connecting the drive member and the first drive wheel.

[0009] The first electric machine is drivingly connected to the drive member such that the first electric machine and the engine are configured to be selectively connected through a first clutch.

[0010] A reversing component provides reversal so that when the engine outputs power to the first drive wheel, the direction of rotation of the engine output shaft is the same as the direction of rotation of the first drive wheel.

[0011] According to the hybrid powertrain in the present disclosure, the hybrid powertrain has a simple structure and is easy to be arranged and installed. Therefore, the production efficiency of the vehicle can be improved. In addition, when the engine is disposed on the right side of the first clutch and the second clutch, the reversing part performs reversing so that the rotation direction of the engine output shaft is the same as the rotation direction of the first driving wheel to drive the vehicle forward and ensure that the vehicle runs normally. In addition, as long as the first clutch and the second clutch are used appropriately, the hybrid mode can be implemented by the first electric machine and the engine. The structure is simple, and the cost is reduced compared with the case of multiple electric machines.

[0012] In some examples of the disclosure, the first clutch includes a first housing and a first driven member, a first clutch plate disposed inside the first housing, the first clutch plate selectively engaged with the first driven member, the first driven member connected to the engine output shaft, and the first housing connected to the drive member.

[0013] In some examples of the present disclosure, an intermediate gear is engaged between the first housing and the drive member.

[0014] In some examples of the present disclosure, a first electric machine output shaft of the first electric machine is fixedly connected to the intermediate gear, and the first electric machine output shaft is coaxially disposed with the intermediate gear.

[0015] In some examples of the disclosure, the second clutch includes a second housing and a second driven member, a second clutch plate disposed inside the second housing, the second clutch plate fixedly connected to the drive member, the second driven member configured to be selectively engaged with the second housing, and the second driven member drivingly connected to the reversing component.

[0016] In some examples of the present disclosure, the reversing component is drivingly connected to the first drive wheel through a first differential.

[0017] In some examples of the present disclosure, the output end of the first differential has a first gear, the second clutch is disposed with the first output gear, the reversing component is a reversing gear, and the reversing gear is engaged between the first output gear and the first gear.

[0018] In some examples of the present disclosure, the center axis of the first gear, the center axis of the reversing gear, and the center axis of the first output gear are parallel, and the projections of the center axis of the first gear, the projections of the center axis of the reversing gear, and the projections of the center axis of the first output gear are connected to form a triangle in the axial direction of the first gear.

[0019] In some examples of the present disclosure, the second housing and the drive member are integrally formed.

[0020] In some examples of the present disclosure, the hybrid powertrain further includes a support shaft, the drive member connected to and coaxially disposed on the support shaft, and a second driven member rotatably sleeved onto the support shaft.

[0021] In some examples of the present disclosure, the engine output shaft is coaxially disposed with the support shaft, and the first driven member is rotatably connected to the support shaft.

[0022] In some examples of the present disclosure, the first housing and the drive member are fixedly connected or integrally formed.

[0023] In some examples of the present disclosure, the hybrid powertrain further includes an energy storage unit. The energy storage unit is electrically connected to the first electric machine.

[0024] In some examples of the present disclosure, the hybrid powertrain includes: A second electric machine, and The transmission further includes a transmission connected between the second electric machine and the second differential, the second electric machine outputting power through the transmission to the second drive wheels.

[0025] The vehicle in this disclosure includes the hybrid powertrain described above.

[0026] Additional aspects and advantages of the disclosure will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the disclosure. [Brief description of the drawings]

[0027] [Figure 1] 1 is a schematic diagram of a hybrid powertrain according to one embodiment of the present disclosure. [Diagram 2] FIG. 2 is an enlarged view of a portion A in FIG. [Diagram 3] FIG. 1 is a schematic diagram of a first gear, a reversing gear, and a first output gear aligned according to one embodiment of the present disclosure. [Figure 4] FIG. 1 is a schematic diagram of another embodiment of a hybrid powertrain according to an embodiment of the present disclosure. [Diagram 5] 1 is a schematic diagram of a vehicle according to one embodiment of the present disclosure. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0028] The embodiments of the present disclosure are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The same or similar elements, or elements having the same or similar functions, are indicated by the same or similar reference numbers throughout the description. The embodiments described below with reference to the accompanying drawings are examples and are used only to explain the present disclosure, and should not be construed as limitations to the present disclosure.

[0029] 1 to 5, the following describes a hybrid powertrain 1000 in one embodiment of the present disclosure. The hybrid powertrain 1000 may be mounted on a vehicle 4000.

[0030] As shown in FIG. 1 and FIG. 2, the hybrid powertrain 1000 in this embodiment of the present disclosure includes a driving member 11, a first clutch 15, a second clutch 16, a first electric machine 200, an engine 300, and a reversing component 700. The first clutch 15 is drivingly connected to both an engine output shaft 301 of the engine 300 and the driving member 11. The first clutch 15 can be selectively connected to the driving member 11 and the engine output shaft 301. It should be noted that the first clutch 15 is connected between the engine output shaft 301 of the engine 300 and the driving member 11. When the first clutch 15 is engaged, the driving member 11 is connected to the engine output shaft 301, and power can be transmitted between the driving member 11 and the engine 300. When the first clutch 15 is disengaged, the driving member 11 is disengaged from the engine output shaft 301, and power cannot be transmitted between the driving member 11 and the engine 300.

[0031] The second clutch 16 is connected between the driving member 11 and the reversing member 700, and the reversing member 700 is connected between the second clutch 16 and the first driving wheel 2000 to selectively connect the driving member 11 and the first driving wheel 2000. The first driving wheel 2000 can be a front wheel or a rear wheel of the vehicle 4000. In this disclosure, the first driving wheel 2000 being a front wheel of the vehicle 4000 is used as an example for explanation. It should be noted that the second clutch 16 is drivingly connected to the first driving wheel 2000 through the reversing member 700, and the second clutch 16 is engaged or disengaged to selectively connect the driving member 11 and the first driving wheel 2000. Specifically, when the second clutch 16 is engaged, the drive member 11 is drivingly connected to the first drive wheel 2000, and power of the drive member 11 can be transmitted to the first drive wheel 2000 to drive and run the vehicle 4000. When the second clutch 16 is disengaged, the drive member 11 is not connected to the first drive wheel 2000, and power of the drive member 11 cannot be transmitted to the first drive wheel 2000. In one embodiment, the torque of the first clutch 15 may be greater than the torque of the second clutch 16.

[0032] The first electric machine 200 is drivingly connected to the drive member 11 for selectively connecting the first electric machine 200 and the engine 300 through the first clutch 15. It should be explained that when the first clutch 15 is engaged, the first electric machine 200 is connected to the engine 300 and power can be transmitted between the first electric machine 200 and the engine 300. When the first clutch 15 is disengaged, the first electric machine 200 is disengaged from the engine 300 and power cannot be transmitted between the first electric machine 200 and the engine 300. At least one of the first electric machine 200 and the engine 300 selectively outputs power to the first drive wheel 2000 through the second clutch 16. Specifically, the first electric machine 200 can selectively output power to the first drive wheel 2000 through the second clutch 16, and the engine 300 can selectively output power to the second clutch 16 through the first clutch 15 and the second clutch 16. When both the first clutch 15 and the second clutch 16 are in an engaged state, the first electric machine 200 and the engine 300 can simultaneously selectively output power to the first drive wheel 2000 through the second clutch 16. After power is output to the first drive wheel 2000, the first drive wheel 2000 can rotate such that the vehicle 4000 moves.

[0033] The engine 300 may selectively output power to the first electric machine 200 through the first clutch 15 to drive the first electric machine 200 to generate electrical power. It may also be understood that the engine 300 may output power to the first electric machine 200 through the first clutch 15 or that the engine 300 may not output power to the first electric machine 200. When the engine 300 outputs power to the first electric machine 200 through the first clutch 15, the engine 300 may drive the first electric machine 200 to generate electrical power. In one embodiment, the first electric machine 200 may selectively output power to the engine 300 through the first clutch 15 to drive the engine 300 to initiate ignition.

[0034] It should be noted that the driving member 11, the first clutch 15, the second clutch 16, the first electric machine 200, and the engine 300 are matched to operate to output power to the first driving wheel 2000. When the operating states of the first electric machine 200, the engine 300, the first clutch 15, and the second clutch 16 are switched, the vehicle 4000 can be switched to various driving modes to improve the driving performance of the vehicle 4000. In addition, the structure of the hybrid powertrain 1000 can be simplified, and the hybrid powertrain 1000 has a compact structure. The first clutch 15 is engaged or disengaged so that the engine 300 selectively outputs power to the first electric machine 200 and the driving member 11. Specifically, when the first clutch 15 is engaged, the engine 300 can output power to the first electric machine 200 and the driving member 11. When the first clutch component 15 is disengaged, the engine 300 is unable to output power to the first electric machine 200 and the drive member 11 such that the engine 300 selectively outputs power to the first electric machine 200 and the drive member 11.

[0035] When the engine 300 outputs power to the first driving wheel 2000, the reversing element 700 performs reversing so that the rotation direction of the engine output shaft 301 is the same as the rotation direction of the first driving wheel 2000. In the related art, from the viewpoint of the engine output shaft, the rotation direction of the engine output shaft is counterclockwise. As shown in FIG. 1, in the rear-forward direction of the vehicle 4000, the engine 300 is disposed on the right side of the first clutch 15, and the second clutch 16 is drivingly connected to the first driving wheel 2000 through the reversing element 700. Since the rotation direction of the engine output shaft 301 of the engine 300 is invariable, if the engine 300 is disposed to the right of the first clutch 15, and the reversing member 700 is not disposed between the second clutch 16 and the first driving wheel 2000, when the engine 300 outputs power to the first driving wheel 2000, the rotation direction of the engine output shaft 301 is opposite to the rotation direction of the first driving wheel 2000, and when power is output to the first driving wheel 2000, the first driving wheel 2000 rotates toward the rear of the vehicle 4000, and the vehicle 4000 cannot run forward. In the present disclosure, the second clutch 16 is drivingly connected to the first driving wheel 2000 through the reversing member 700, and the reversing is performed by the reversing member 700. When the engine 300 outputs power to the first driving wheel 2000, the rotation direction of the engine output shaft 301 is the same as that of the first driving wheel 2000, so that the vehicle 4000 is driven to run forward, which helps to position the engine 300. The vehicle 4000 is ensured to run normally.

[0036] The hybrid powertrain 1000 is mounted on a vehicle 4000 to perform multiple functions of the vehicle 4000, as detailed below.

[0037] A function to start the engine 300 when the first electric machine 200 is in an unloaded state. In such a function state, neither the first electric machine 200 nor the engine 300 outputs power to the first driving wheel 2000 through the second clutch 16. The first electric machine 200 is in a stationary state at the time of starting. After the first electric machine 200 receives electric energy, the first electric machine 200 starts to operate from a stationary state. The first clutch 15 is engaged, and the first electric machine 200 transmits power to the engine 300, pulls the engine 300 to start ignition, and starts the engine 300.

[0038] A function to start the engine 300 when the first electric machine 200 is in a loaded state. In such a functioning state, the second clutch 16 is engaged, the first electric machine 200 is running, the first electric machine 200 outputs power to the first drive wheels 2000 through the second clutch 16, and the first electric machine 200 is in a running with load state, and the first electric machine 200 transmits power to the engine 300 through the first clutch 15 to pull the engine 300 and initiate ignition.

[0039] Series power generation function of the engine 300. In such a functional state, the engine 300 is ignited, activated and running, the second clutch 16 is disengaged, neither the first electric machine 200 nor the engine 300 outputs power to the first driving wheel 2000, the engine 300 outputs power to the first electric machine 200 through the first clutch 15, the first electric machine 200 operates to generate power and provide electric energy to the energy storage unit 800 and / or the second electric machine 500, and when the second electric machine 500 is running, the second electric machine 500 can output power to the second driving wheel 3000. It should be noted that when the first driving wheel 2000 is a front wheel, the second driving wheel 3000 is a rear wheel. When the first driving wheel 2000 is a rear wheel, the second driving wheel 3000 is a front wheel. In this disclosure, the first driving wheel 2000 being the front wheel and the second driving wheel 3000 being the rear wheel is used as an example for explanation.

[0040] Parallel power generation function of engine 300. In such a functional state, engine 300 is in a state of being ignited, operating and running, engine 300 outputs power to first drive wheel 2000 through first clutch 15 and second clutch 16, engine 300 drives vehicle 4000 to run, engine 300 outputs power to first electric machine 200 through first clutch 15 to pull and rotate first electric machine 200 to drive first electric machine 200 to generate electric power, first electric machine 200 changes to generator mode, engine 300 drives first electric machine 200 to generate electric power and supply electric energy to energy storage unit 800 or second electric machine 500.

[0041] Therefore, the hybrid powertrain 1000 in the present disclosure has a simple structure and is easy to be arranged and installed. Thus, the production efficiency of the vehicle 4000 can be improved. In addition, when the engine 300 is disposed on the right side of the first clutch 15 and the second clutch 16, the reversing component 700 is performed so that the rotation direction of the engine output shaft 301 is the same as the rotation direction of the first driving wheel 2000 to drive the vehicle 4000 to run forward and ensure that the vehicle 4000 runs normally. In addition, as long as the first clutch 15 and the second clutch 16 are used appropriately, the hybrid mode can be implemented by the first electric machine 200 and the engine 300. The structure is simple, and the cost is reduced compared with the case of multiple electric machines.

[0042] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the hybrid powertrain 1000 may further include a reserve shaft 701. The reversing component 700 may be arranged as a reversing gear, with the reversing component 700 attached to the reserve shaft 701, and the reserve shaft 701 attached to the housing of the hybrid powertrain 1000 through a reversing bearing 702. In one embodiment, one end of the reserve shaft 701 is attached to the housing of the hybrid powertrain 1000 through a reversing bearing 702, and the other end of the reserve shaft 701 is arranged to be suspended. In such an arrangement, the axial and radial sizes of the hybrid powertrain 1000 may be effectively reduced.

[0043] In some embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the first clutch 15 may include a first housing 151 and a first driven member 152, a first clutch plate 155 disposed inside the first housing 151, the first clutch plate 155 selectively engaged with the first driven member 152, the first driven member 152 connected to the engine output shaft 301, and the first housing 151 connected to the drive member 11. In one embodiment, the first housing 151 may be rotatably mounted to a housing of the hybrid powertrain 1000 through a mounting shaft 153, the first housing 151 being sleeved outside the mounting shaft 153 and rotatable relative to the mounting shaft 153. In one embodiment, a support bearing 154 is disposed between the mounting shaft 153 and the first housing 151. After the first driven member 152 moves relative to and engages with the first housing 151, when the engine 300 runs, power can be output to the driving member 11, or power can be output to the first electric machine 200. When the first electric machine 200 runs, the first electric machine 200 can output power to the engine 300.

[0044] In some embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the first driven member 152 is connected to the engine output shaft 301. In one embodiment, the first driven member 152 is fixedly connected to the engine output shaft 301. The manner in which the first driven member 152 is fixedly connected to the engine output shaft 301 is not particularly limited. In one embodiment, a plurality of first friction plates 155 are arranged, the plurality of first friction plates 155 are spaced apart from each other in sequence, a first groove 1511 is formed between adjacent first friction plates 155, and the first driven member 152 is arranged with at least one second friction plate 156. For example, there are a plurality of second friction plates 156, the plurality of second friction plates 156 are arranged in one-to-one correspondence with the plurality of first grooves 1511, and the second friction plates 156 extend into the first groove 1511. The first driven member 152 moves relative to the first housing 151 such that the first friction plate 155 and the second friction plate 156 are engaged or disengaged and the engine 300 selectively transmits power to the first electric machine 200 and the drive member 11.

[0045] In some embodiments of the present disclosure, as shown in Figures 1 and 2, an intermediate gear 202 is engaged between the first housing 151 and the driving member 11. The intermediate gear 202 is engaged between the first housing 151 and the driving member 11 so that power is transmitted. It can be ensured that the first housing 151 and the driving member 11 transmit power stably. In this case, the first housing 151 is drivingly connected to the driving member 11.

[0046] In some embodiments of the present disclosure, as shown in Figures 1 and 2, a first electric machine output shaft 201 of a first electric machine 200 is fixedly connected to an intermediate gear 202, and the first electric machine output shaft 201 is coaxially disposed with the intermediate gear 202. The first electric machine output shaft 201 is fixedly connected to the intermediate gear 202. After the first housing 151 is engaged with the first driven member 152, when the engine 300 runs and the first housing 151 rotates, the intermediate gear 202 is driven to rotate, and when the intermediate gear 202 rotates, the first electric machine 200 generates power and the drive member 11 is driven to rotate. In addition, the first electric machine output shaft 201 is arranged coaxially with the intermediate gear 202 so that the intermediate gear 202 can be reliably engaged between the first housing 151 and the driving member 11, and the intermediate gear 202 is prevented from rotating eccentrically to ensure the operation performance of the hybrid powertrain 1000. In addition, when the first electric machine 200 is running, the power of the first electric machine output shaft 201 can be transmitted to the driving member 11 through the intermediate gear 202. After the first clutch 15 is engaged, the power of the first electric machine output shaft 201 can be transmitted to the engine 300 through the first clutch 15 to obtain the technical effect of transmitting power from the first electric machine 200 to the driving member 11 and the engine 300.

[0047] In some embodiments, as shown in FIG. 1 and FIG. 2, the second clutch 16 may include a second housing 161 and a second driven member 162. The second housing 161 is fixedly connected to the drive member 11. In one embodiment, the second housing 161 may be fixedly connected to the drive member 11 through bolts, or the second housing 161 may be welded to the drive member 11, or the second housing 161 may be clamped to the drive member 11, such that the second housing 161 is fixedly connected to the drive member 11. A third friction plate 163 is disposed inside the second housing 161, and the second driven member 162 is configured to be selectively engaged with the third friction plate 163. The second driven member 162 moves relative to the second housing 161 such that the third friction plate 163 and the second driven member 162 are engaged or disengaged. When the third friction plate 163 and the second driven member 162 are engaged, power can be transmitted in the second clutch 16. When the third friction plate 163 and the second driven member 162 are disengaged, no power can be transmitted between the second housing 161 and the second driven member 162 to ensure that the second clutch component 16 has a clutch effect. In one embodiment, the second driven member 162 is drivingly connected to the reversing component 700 such that power is transmitted to the reversing component 700.

[0048] In some embodiments of the present disclosure, as shown in FIG. 1, the second driven member 162 is disposed with a fourth friction plate 164, and the third friction plates 163 and the fourth friction plates 164 are arranged in an alternating manner, and the third friction plates 163 and the fourth friction plates 164 can be selectively engaged to control the engagement or disengagement of the second housing 161 and the second driven member 162. In one embodiment, a plurality of third friction plates 163 are arranged, and the plurality of third friction plates 163 are spaced apart in sequence, and grooves are formed between adjacent third friction plates 163, and the second driven member 162 is disposed with at least one fourth friction plate 164. For example, there are a plurality of fourth friction plates 164, and the plurality of fourth friction plates 164 are arranged in one-to-one correspondence with the plurality of first grooves 1511, and the fourth friction plates 164 extend into the corresponding grooves. The second driven member 162 moves relative to the second housing 161 such that the third friction plate 163 and the fourth friction plate 164 are selectively engaged or disengaged to control the engagement or disengagement of the second housing 161 and the second driven member 162.

[0049] In some embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the second housing 161 and the driving member 11 are integrally formed. In other words, the second housing 161 and the driving member 11 are configured as an integral member. In such an arrangement, the connection strength of the second housing 161 and the driving member 11 can be improved, and the second housing 161 and the driving member 11 can be prevented from being separated. In addition, the step of making the second housing 161 alone can also be omitted to reduce mold development costs, reduce production costs of the hybrid powertrain 1000, improve production efficiency of the hybrid powertrain 1000, and implement the integration of the second clutch and the driving member 11.

[0050] In some embodiments of the present disclosure, the reversing component 700 is drivingly connected to the first driving wheel 2000 through the first differential 600, which is drivingly connected to the first driving wheel 2000. The second clutch 16 is drivingly connected to the first differential 600 through the reversing component 700, which is engaged between the reversing component 700 and the first driving wheel 2000 so that power is transmitted. When the second driven member 162 is engaged with the second housing 161, power of the driving member 11 is transmitted to the first driving wheel 2000 through the second clutch 16, the reversing component 700, and the first differential 600 so that the vehicle 4000 is driven to run.

[0051] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the output end of the first differential 600 has a first gear 601, the second clutch 16 is disposed with the first output gear 13, and the reversing component 700 is a reversing gear that is engaged between the first output gear 13 and the first gear 601. In one embodiment, the second driven member 162 of the second clutch 16 is disposed with the first output gear 13, the first output gear 13 is sleeved outside the second driven member 162, and the first output gear 13 may be integrally formed with the second driven member 162 to reduce mold development costs and reduce production costs. When the second driven member 162 is engaged with the second housing 161, the power of the driving member 11 is transmitted through the second clutch 16, the first output gear 13, the reversing gear 700, and the first gear 601 to the first differential 600, and the power is transmitted through the first differential 600 to the first driving wheel 2000 of the vehicle 4000 so that the vehicle 4000 is driven and runs.

[0052] 3, the central axis of the first gear 601, the central axis of the reversing gear 700, and the central axis of the first output gear 13 are parallel, and the projections of the central axis of the first gear 601, the central axis of the reversing gear, and the central axis of the first output gear 13 are connected to form a triangle in the axial direction of the first gear 601. In such an arrangement, the structure of the first gear 601, the reversing gear, and the first output gear 13 may be more compact to reduce the radial size of the hybrid powertrain.

[0053] In some embodiments of the present disclosure, the hybrid powertrain 1000 may further include a support shaft 14. The driving member 11 is connected to the support shaft 14, the driving member 11 is arranged coaxially with the support shaft 14, and the second driven member 162 is rotatably sleeved on the support shaft 14. In one embodiment, the driving member 11 may be arranged as a driving gear, the driving member 11 may be sleeved on the outside of the support shaft 14, the driving member 11 is fixedly connected to the support shaft 14, and the central axis of the driving member 11 coincides with the central axis of the support shaft 14. The second driven member 162 is rotatable relative to the support shaft 14. In such an arrangement, the second clutch 16 and the driving member 11 may be integrated and arranged on the same support shaft 14 such that the hybrid powertrain 1000 has a compact structure and the size of the hybrid powertrain 1000 is reduced. The hybrid powertrain 1000 occupies a narrow installation space, which helps to install the hybrid powertrain 1000 on the vehicle 4000 and reduces the production efficiency of the vehicle 4000.

[0054] In some embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the hybrid powertrain 1000 may further include a first bearing 142. The second driven member 162 is rotatably connected to the support shaft 14 through the first bearing 142. The first bearing 142 is sleeved on the outside of the support shaft 14, and the first bearing 142 is connected between the second driven member 162 and the support shaft 14 such that the second driven member 162 and the support shaft 14 rotate relative to each other. In addition, the first bearing 142 is supported between the second driven member 162 and the support shaft 14 to ensure that the second driven member 162 and the support shaft 14 rotate about the same axis, to ensure that the second driven member 162 and the support shaft 14 rotate smoothly relative to each other, and to prevent the second driven member 162 from moving radially relative to the support shaft 14.

[0055] In some embodiments of the present disclosure, as shown in FIG. 1 and FIG. 2, the hybrid powertrain 1000 may further include a housing. The support shaft 14 is rotatably connected to the housing through the second bearing 143. In one embodiment, the second bearing 143 is sleeved on the outside of the support shaft 14, the second bearing 143 is connected between the support shaft 14 and the housing, and the support shaft 14 is mounted and fixed through the second bearing 143 such that the support shaft 14 is rotatable relative to the housing. The support shaft 14 may be securely mounted to the housing of the hybrid powertrain 1000 such that the support shaft 14 securely supports the second clutch 16 to further ensure the operational performance of the second clutch 16.

[0056] 1 , the first electric machine output shaft 201 of the first electric machine 200 is parallel to the engine output shaft 301. In such an arrangement, alignment of the first electric machine 200 and the engine 300 can be facilitated to avoid interference between the first electric machine 200 and the engine 300.

[0057] 4, in another embodiment, the engine output shaft 301 is disposed coaxially with the support shaft 14, and the first driven member 152 is rotatably connected to the support shaft 14. In this embodiment, the first housing 151 may further be fixedly connected to or integrally formed with the drive member 11, such that the first housing 151, the second housing 61, and the drive member 11 are fixedly connected or such that the first housing 151, the second housing 61, and the drive member 11 are integrally formed.

[0058] In some embodiments of the present disclosure, as shown in Fig. 1, the hybrid powertrain 1000 may further include a second electric machine 500 (i.e., the second electric machine 500 in the above embodiment), and a transmission 400. The transmission 400 is connected between the second electric machine 500 and the second differential 900, and the second electric machine 500 outputs power to the second driving wheels 3000 through the transmission 400. In one embodiment, as shown in Fig. 1, the transmission 400 includes a transmission input gear 401 and a transmission output gear 402. The transmission input gear 401 and the transmission output gear 402 are drivingly connected, the transmission input gear 401 is fixedly connected to the second electric machine output shaft 501 of the second electric machine 500, the second differential 900 has a second gear 901, and the transmission output gear 402 is engaged for driving with the second gear 901. In one embodiment, the transmission 400 further includes a transmission drive gear 403. The transmission drive gear 403 and the transmission output gear 402 are mounted on the same connecting shaft 404, the transmission drive gear 403 is engaged with the transmission input gear 401, and the transmission output gear 402 is engaged for driving with the second gear 901.

[0059] In some embodiments of the present disclosure, as shown in FIG. 1, the hybrid powertrain 1000 may further include an energy storage unit 800. The energy storage unit 800 is electrically connected to the first electric machine 200. In one embodiment, the energy storage unit 800 is electrically connected to the second electric machine 500. The energy storage unit 800 may be a battery pack, and the energy storage unit 800 may provide power to the first electric machine 200 and the second electric machine 500 to drive the first electric machine 200 and the second electric machine 500 to operate. When the second electric machine 500 operates, the second electric machine output shaft 501 of the second electric machine 500 drives the transmission input gear 401 to rotate. When the transmission input gear 401 rotates, the transmission drive gear 403 is driven to rotate. The transmission drive gear 403 drives the transmission output gear 402 to rotate. As the transmission output gear 402 rotates, the second gear 901 is driven to rotate and outputs power to the second differential 900. The power is output to the second drive wheel 3000 through the second differential 900 such that the second drive wheel 3000 is driven to rotate.

[0060] In some embodiments of the present disclosure, the driving member 11, the first clutch 15, and the second clutch 16 may be integrally arranged, the driving member 11 is drivingly connected to the first electric machine 200, and the first clutch 15 and the second clutch 16 are respectively arranged on two sides of the driving member 11 to reduce the radial size of the hybrid powertrain 1000. Both the first clutch 15 and the second clutch 16 are connected to the driving member 11, the first clutch 15 includes a first housing 151 and a first driven member 152, the first housing 151 is fixedly connected to the driving member 11, and the first driven member 152 is selectively engaged with the first housing 151. The first driven member 152 moves relative to the first housing 151 such that the first housing 151 and the first driven member 152 are engaged or disengaged. The first driven member 152 is fixedly connected to the engine output shaft 301, the second clutch 16 includes a second housing 161 and a second driven member 162, the second housing 161 is fixedly connected to the drive member 11, the second housing 161 is selectively engaged with the second driven member 162, and the first housing 151, the second housing 161 and the drive member 11 are integrally formed. The drive member 11 is connected to a support shaft 14, the first driven member 152 and the second driven member 162 are rotatably sleeved on the support shaft 14, and the first driven member 152 and the second driven member 162 are rotatable relative to the support shaft 14.

[0061] The hybrid powertrain 1000 is installed in a vehicle 4000 to perform multiple functions of the vehicle 4000, as described in detail below.

[0062] A function to start the engine 300 when the first electric machine 200 is in an unloaded state. In such a function state, the second driven member 162 is decoupled from the second housing 161, and the first electric machine 200 is in a stationary state. The energy storage unit 800 starts to supply power to the first electric machine 200, and the first electric machine 200 starts to operate from a stationary state, the first driven member 152 is engaged with the first housing 151, and the power is transmitted to the engine 300 through the intermediate gear 202, the first housing 151, and the first driven member 152 to pull the engine 300 and start the ignition.

[0063] A function to start the engine 300 when the first electric machine 200 is under load. In such a function state, the second housing 161 is engaged with the second driven member 162, the energy storage unit 800 supplies power to the first electric machine 200, and the first electric machine 200 is under loaded operation. The first driven member 152 starts to be engaged with the first housing 151 through sliding friction, and power is transferred to the engine 300 through the first clutch 15 to pull the engine 300 and initiate ignition.

[0064] Series power generation function of engine 300. In such a functional state, engine 300 is ignited, activated and running, and second driven member 162 is decoupled from second housing 161. First housing 151 comes into engagement with first driven member 152, and engine 300 transmits power through first driven member 152, first housing 151 and intermediate gear 202 to first electric machine 200, which operates to generate power and supply electric energy to energy storage unit 800 and / or second electric machine 500.

[0065] Parallel power generation function of engine 300. In such functional state, engine 300 is ignited, activated and running, first housing 151 is engaged with first driven member 152, second driven member 162 is engaged with second housing 161, engine 300 drives vehicle 4000 to run and pulls first electric machine 200 to rotate, first electric machine 200 changes to generator mode, and engine 300 drives first electric machine 200 to generate power and supply electric energy to energy storage unit 800 and / or second electric machine 500.

[0066] A function of recovering braking energy by the second electric machine 500 while traveling. In such a functional state, the second driven member 162 is decoupled from the second housing 161 and the first driven member 152 is decoupled from the first housing 151. The vehicle 4000 transmits power to the second electric machine 500 through the rear axle wheels (i.e., rear drive shaft), the second differential 900, and the transmission 400. The second electric machine 500 generates power to power the energy storage unit 800 and / or the first electric machine 200. This function is applicable to small and medium braking conditions.

[0067] A function of recovering braking energy by the first electric machine 200 and the second electric machine 500 jointly during running. In such a function state, the second driven member 162 is engaged with the second housing 161, and the first driven member 152 is decoupled from the first housing 151. The vehicle 4000 transmits power to the second electric machine 500 through the rear axle wheels (i.e., rear drive shaft), the second differential 900, and the transmission 400, and also transmits power to the first electric machine 200 through the front axle wheels (i.e., front drive shaft), the first differential 600, the second clutch 16, the drive member 11, and the intermediate gear 202. The first electric machine 200 and the second electric machine 500 work together to generate power and supply electric energy to the energy storage unit 800. This function is applicable to intermediate and heavy braking conditions.

[0068] After the hybrid powertrain 1000 is installed in the vehicle 4000, multiple driven driving modes of the vehicle 4000 can be implemented. Specific embodiments are as follows:

[0069] EV front wheel drive mode. In this mode, the second driven member 162 is engaged with the second housing 161 and the first driven member 152 is decoupled from the first housing 151. The energy storage unit 800 supplies power to the first electric machine 200, which operates to transmit power through the intermediate gear 202, the driving member 11, the second housing 161, the second driven member 162, the first output gear 13, the reversing element 700, the first gear 601, the first differential 600, and the front drive shaft to the first driving wheel 2000 to pull and run the whole vehicle.

[0070] EV rear wheel drive mode. In this mode, the second driven member 162 is decoupled from the second housing 161 and the first driven member 152 is decoupled from the first housing 151. The energy storage unit 800 provides power to the second electric machine 500, which operates to transmit power through the transmission 400, the second gear 901, the second differential 900, and the rear drive shaft to the second drive wheels 3000 to pull the whole vehicle.

[0071] EV 4-wheel drive mode. In this mode, the second driven member 162 is engaged with the second housing 161, and the first driven member 152 is decoupled from the first housing 151. The energy storage unit 800 supplies power to the first electric machine 200, which operates to transmit power to the first driving wheel 2000 through the intermediate gear 202, the driving member 11, the second housing 161, the second driven member 162, the first output gear 13, the reversing element 700, the first gear 601, the first differential 600, and the front drive shaft. The energy storage unit 800 also supplies power to the second electric machine 500, which operates to transmit power to the second driving wheel 3000 through the transmission 400, the second differential 900, and the rear drive shaft. The first electric machine 200 and the second electric machine 500 work together to pull the entire vehicle.

[0072] HEV front wheel drive mode. In this mode, the engine 300 is ignited, activated and running, the second driven member 162 is engaged with the second housing 161, and the first driven member 152 is engaged with the first housing 151. The engine 300 transmits power through the first driven member 152, the first housing 151, the intermediate gear 202, the driving member 11, the second clutch 16, the first output gear 13, the reversing element 700, the first gear 601, the first differential 600, and the front drive shaft to the first driving wheel 2000 to pull and run the whole vehicle. When the power is insufficient, the energy storage unit 800 provides power to the first electric machine 200 to help the engine 300 drive and run the whole vehicle. In the event of excess power, the first electric machine 200 generates power and supplies electrical energy to the energy storage unit 800 .

[0073] HEV rear wheel drive mode. In this mode, the engine 300 is ignited, activated and running, the second driven member 162 is decoupled from the second housing 161, and the first driven member 152 is engaged with the first housing 151. The engine 300 transmits power through the first driven member 152, the first housing 151 and the intermediate gear 202 to the first electric machine 200, which operates to generate power and provide electrical energy to the second electric machine 500. The second electric machine 500 operates to transmit power through the transmission 400, the second differential 900 and the rear drive shaft to the second drive wheels 3000 to pull and run the whole vehicle. When power is insufficient, the energy storage unit 800 provides power to the second electric machine 500 to help drive the whole vehicle. In the event of excess power, the first electric machine 200 supplies the excess electrical energy to the energy storage unit 800 .

[0074] HEV 4-wheel drive mode. In this mode, the engine 300 is ignited, activated and running, the second driven member 162 is engaged with the second housing 161, and the first driven member 152 is engaged with the first housing 151. The first electric machine 200 transmits power to the first driving wheel 2000 through the intermediate gear 202, the driving member 11, the second clutch 16, the first output gear 13, the reversing part 700, the first gear 601, the first differential 600, and the front drive shaft to pull the whole vehicle. In addition, the energy storage unit 800 supplies power to the second electric machine 500, which operates and transmits power to the second driving wheel 3000 through the transmission 400, the second differential 900, and the rear drive shaft to pull the whole vehicle together. In the case of insufficient power, the energy storage unit 800 provides power to the first electric machine 200 to help drive the entire vehicle and run. In the case of excess power, the first electric machine 200 generates power and provides electric energy to the energy storage unit 800.

[0075] It should be noted that data parameters, such as the type of engine 300 (e.g., naturally charged engine or turbocharged engine), the performance parameters of engine 300 (e.g., displacement, power, or torque), and the size parameters of engine 300, are appropriately selected based on the actual situation. The types, performance parameters, size parameters, etc. of first electric machine 200 and second electric machine 500 may be appropriately selected based on the actual situation.

[0076] As shown in FIG. 5, a vehicle 4000 in one embodiment of the present disclosure includes the hybrid powertrain 1000 in the above embodiment. The hybrid powertrain 1000 has a simple structure and is easy to be arranged and installed. Therefore, the production efficiency of the vehicle 4000 can be improved. In addition, when the engine 300 is disposed on the right side of the first clutch 15 and the second clutch 16, a reversing part 700 is performed to drive the vehicle 4000 to run forward, and to ensure that the vehicle 4000 runs normally, so that the rotation direction of the engine output shaft 301 is the same as the rotation direction of the first driving wheel 2000.

[0077] In the description herein, a statement regarding the directive "an embodiment," "some embodiments," "an example embodiment," "an example," "a specific example," or "some examples" means that the particular feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the disclosure. In this specification, the exemplary statements of the above terms do not necessarily refer to the same embodiment or example. In addition, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0078] While embodiments of the present disclosure have been illustrated and described, it should be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made to the embodiments without departing from the principle and spirit of the present disclosure, and that the scope of the present disclosure is defined by the claims and their equivalents.

Claims

1. A driving member (11), a first clutch (15), a second clutch (16), a first electric machine (200), an engine (300), and a reversing component (700). Equipped with the first clutch (15) is drivingly connected to the engine output shaft (301) of the engine (300) and to the drive member (11) for selectively connecting the drive member (11) and the engine output shaft (301); the second clutch (16) is connected between the drive member (11) and the reversing element (700), and the reversing element (700) is connected between the second clutch (16) and the first drive wheel (2000) for selectively connecting the drive member (11) and the first drive wheel (2000); the first electric machine (200) is drivingly connected to the drive member (11) such that the first electric machine (200) and the engine (300) are configured to be selectively connected through the first clutch (15); A hybrid powertrain (1000), wherein when the engine (300) outputs power to the first drive wheel (2000), the reversing component (700) reverses the rotation direction of the engine output shaft (301) so that the rotation direction is the same as the rotation direction of the first drive wheel (2000).

2. 2. The hybrid powertrain (1000) of claim 1, wherein the first clutch (15) comprises a first housing (151) and a first driven member (152), a first clutch plate disposed inside the first housing (151), the first clutch plate selectively engaged with the first driven member (152), the first driven member (152) connected to the engine output shaft (301), and the first housing (151) connected to the drive member (11).

3. The hybrid powertrain (1000) of claim 2, wherein an intermediate gear (202) is engaged between the first housing (151) and the drive member (11).

4. 4. The hybrid powertrain (1000) of claim 3, wherein a first electric machine output shaft (201) of the first electric machine (200) is fixedly connected to the intermediate gear (202), and the first electric machine output shaft (201) is arranged coaxially with the intermediate gear (202).

5. 5. The hybrid powertrain (1000) of claim 2, wherein the second clutch (16) comprises a second housing (161) and a second driven member (162), a second clutch plate disposed inside the second housing (161), the second clutch plate fixedly connected to the driving member (11), the second driven member (162) configured to be selectively engaged with the second housing (161), and the second driven member (162) drivingly connected to the reversing component (700).

6. 6. The hybrid powertrain (1000) of claim 5, wherein the reversing component (700) is drivingly connected to the first drive wheel (2000) through a first differential (600).

7. 7. The hybrid powertrain (1000) of claim 6, wherein an output end of the first differential (600) has a first gear (601), the second clutch (16) is disposed with a first output gear (13), the reversing component (700) is a reversing gear, and the reversing gear is engaged between the first output gear (13) and the first gear (601).

8. 8. The hybrid powertrain (1000) of claim 7, wherein a central axis of the first gear (601), a central axis of the reversing gear (700), and a central axis of the first output gear (13) are parallel, and a projection of the central axis of the first gear (601), a projection of the central axis of the reversing gear (700), and a projection of the central axis of the first output gear (13) are connected to form a triangle in the axial direction of the first gear (601).

9. The hybrid powertrain (1000) of claim 5, wherein the second housing (161) and the drive member (11) are integrally formed.

10. 10. The hybrid powertrain (1000) of any one of claims 5 to 9, further comprising a support shaft (14), the drive member (11) being connected to the support shaft (14) and arranged coaxially with the support shaft (14), and the second driven member (162) being rotatably sleeved onto the support shaft (14).

11. 11. The hybrid powertrain (1000) of claim 10, wherein the engine output shaft (301) is arranged coaxially with the support shaft (14), and the first driven member (152) is connected to the support shaft (14).

12. The hybrid powertrain (1000) of claim 11, wherein the first housing and the drive member are fixedly connected or integrally formed.

13. The hybrid powertrain (1000) of any one of claims 1 to 12, further comprising an energy storage unit (800), said energy storage unit (800) electrically connected to said first electric machine (200).

14. A second electric machine (500), and Transmission device (400) The hybrid powertrain (1000) of any one of claims 1 to 13, further comprising: the transmission (400) connected between the second electric machine (500) and a second differential (900), the second electric machine (500) outputting power through the transmission (400) to second drive wheels (3000).

15. A vehicle (4000) comprising a hybrid powertrain (1000) according to any one of claims 1 to 14.

Images