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 content of the above application is incorporated herein by reference.

[0002] This disclosure relates to the field of vehicles, and more particularly, to a hybrid powertrain and a vehicle including the hybrid powertrain.

Background Art

[0003] In related technologies, existing hybrid powertrains of vehicles have a complex structure, and in order to implement hybrid modes, multiple electric machines and multiple engines are usually required.

Summary of the Invention

Problems to be Solved by the Invention

[0004] This disclosure aims to solve at least one of the technical problems existing in related technologies. Therefore, the objective of this 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 rotational direction of the engine output shaft is the same as that of the first drive wheel in order to implement the drive of the vehicle for forward travel and to ensure that the vehicle travels normally.

[0005] This disclosure further provides a vehicle.

Means for Solving the Problems

[0006] The hybrid powertrain in this disclosure includes a drive member, a first clutch, a second clutch, a first electric machine, an engine, and a reverse part.

[0007] The first clutch is drivenly connected to both the engine's engine output shaft and the engine's drive shaft in order to selectively connect 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 to selectively connect the drive member and the first drive wheel.

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

[0010] When the engine outputs power to the first drive wheel, a reversing component reverses the rotation so that 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 this disclosure, the hybrid powertrain has a simple structure and is easy to arrange and install. Therefore, the production efficiency of the vehicle can be improved. In addition, when the engine is located to the right of the first and second clutches, a reversing component is used to reverse the rotation so that the direction of rotation of the engine output shaft is the same as the direction of rotation of the first drive wheel, in order to drive the vehicle forward and to ensure that the vehicle runs normally. In addition, a hybrid mode can be implemented by the first electromechanism and engine as long as the first and second clutches are used appropriately. The structure is simple and costs are reduced compared to cases with multiple electromechanisms.

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

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

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

[0015] In some examples of the present disclosure, the second clutch includes a second housing and a second driven member, wherein the second clutch plate is located inside the second housing and is fixedly connected to the driven member, the second driven member is configured to selectively engage with the second housing and is drivenly connected to a reversing component.

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

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

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

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

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

[0021] In some examples of the present disclosure, the engine output shaft is disposed coaxially 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 electromechanical device.

[0024] In some examples of the present disclosure, the hybrid powertrain further includes a second electromechanical device, and a transmission. The transmission is connected between the second electromechanical device and the second differential device, and the second electromechanical device outputs power to the second drive wheel through the transmission.

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

[0026] Further aspects and advantages of the present disclosure will be set forth in part in the following description, will become apparent in part from the following description, or may be learned by practice of the present disclosure.

Brief Description of the Drawings

[0027] [Figure 1] It is a schematic diagram of a hybrid powertrain according to an embodiment of the present disclosure. [Figure 2] It is an enlarged view of part A in FIG. 1. [Figure 3] It is a schematic diagram in which a first gear, a reverse gear, and a first output gear are aligned according to an embodiment of the present disclosure. [Figure 4] It is a schematic diagram of another embodiment of a hybrid powertrain according to an embodiment of the present disclosure. [Figure 5] It is a schematic diagram of a vehicle according to an embodiment of the present disclosure. [Modes for carrying out the invention]

[0028] Embodiments of the present disclosure are described in detail below, and examples of embodiments are shown in the accompanying drawings. The same or similar elements, or elements having the same or similar function, are indicated by the same or similar reference numerals throughout the description. The embodiments described below with reference to the accompanying drawings are examples and are used solely for illustrative purposes of the present disclosure and should not be construed as limitations on the present disclosure.

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

[0030] As shown in Figures 1 and 2, the hybrid powertrain 1000 in this embodiment of the present disclosure includes a drive member 11, a first clutch 15, a second clutch 16, a first electromechanism 200, an engine 300, and a reversing component 700. The first clutch 15 is drastically connected to both the engine output shaft 301 of the engine 300 and the drive member 11. The first clutch 15 may be selectively connected to the drive 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 drive member 11. When the first clutch 15 is engaged, the drive member 11 is connected to the engine output shaft 301, and power can be transmitted between the drive member 11 and the engine 300. When the first clutch 15 is disengaged, the drive member 11 is disengaged from the engine output shaft 301, and power can no longer be transmitted between the drive member 11 and the engine 300.

[0031] A second clutch 16 is connected between the drive member 11 and the reversing component 700, and the reversing component 700 is connected between the second clutch 16 and the first drive wheel 2000 to selectively connect the drive member 11 and the first drive wheel 2000. The first drive wheel 2000 may be a front wheel or a rear wheel of the vehicle 4000. In this disclosure, it is used as an example for illustrative purposes that the first drive wheel 2000 is a front wheel of the vehicle 4000. It should be noted that the second clutch 16 is drivenly connected to the first drive wheel 2000 through the reversing component 700, and that the second clutch 16 is engaged or disengaged to selectively connect the drive member 11 and the first drive wheel 2000. Specifically, when the second clutch 16 is engaged, the drive member 11 is drivenly connected to the first drive wheel 2000, and the power of the drive member 11 can be transmitted to the first drive wheel 2000 to drive the vehicle 4000. When the second clutch 16 is disengaged, the drive member 11 is not connected to the first drive wheel 2000, and the 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 drivably connected to the drive member 11 to selectively connect the first electric machine 200 and the engine 300 through a 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 a 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 engaged, the first electric machine 200 and the engine 300 can simultaneously and 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 so that the vehicle 4000 can move.

[0033] Engine 300 can selectively output power to the first electric machine 200 through the first clutch 15 in order to drive the first electric machine 200 and generate electricity. It can also be understood that engine 300 may output power to the first electric machine 200 through the first clutch 15, or that engine 300 does not have to output power to the first electric machine 200. When engine 300 outputs power to the first electric machine 200 through the first clutch 15, engine 300 can drive the first electric machine 200 and generate electricity. In one embodiment, the first electric machine 200 can selectively output power to engine 300 through the first clutch 15 in order to drive engine 300 and initiate ignition.

[0034] It should be noted that the drive member 11, the first clutch 15, the second clutch 16, the first electromechanism 200, and the engine 300 are matched to operate in order to output power to the first drive wheel 2000. When the operating states of the first electromechanism 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 in order 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 electromechanism 200 and the drive member 11. Specifically, when the first clutch 15 is engaged, the engine 300 can output power to the first electromechanism 200 and the drive 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, so 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 drive wheel 2000, the reversing component 700 reverses the rotation of the engine output shaft 301 so that its rotation direction is the same as that of the first drive wheel 2000. In related technologies, from the perspective of the engine output shaft, the rotation direction of the engine output shaft is counterclockwise. As shown in Figure 1, in the rear-forward direction of the vehicle 4000, the engine 300 is located to the right of the first clutch 15, and the second clutch 16 is drivenly connected to the first drive wheel 2000 through the reversing component 700. Since the rotation direction of the engine output shaft 301 of the engine 300 is constant, if the engine 300 is positioned to the right of the first clutch 15, and the reversing component 700 is not positioned between the second clutch 16 and the first drive wheel 2000, then when the engine 300 outputs power to the first drive wheel 2000, the rotation direction of the engine output shaft 301 is opposite to the rotation direction of the first drive wheel 2000, and when power is output to the first drive wheel 2000, the first drive wheel 2000 rotates toward the rear of the vehicle 4000, and the vehicle 4000 cannot travel forward. In this disclosure, the second clutch 16 is driven by the first drive wheel 2000 through the reversing component 700, and the reversing component 700 performs the reversal. When the engine 300 outputs power to the first drive wheel 2000, the direction of rotation of the engine output shaft 301 is the same as the direction of rotation of the first drive wheel 2000, which helps to position the engine so that the vehicle 4000 is driven to travel forward. This ensures that the vehicle 4000 runs normally.

[0036] The hybrid powertrain 1000 is mounted on the vehicle 4000 to perform several functions of the vehicle 4000. Details are as follows:

[0037] A function to start the engine 300 when the first electric machine 200 is in an unloaded state. In such a functional state, neither the first electric machine 200 nor the engine 300 outputs power to the first drive wheels 2000 through the second clutch 16. The first electric machine 200 is stationary at startup. After the first electric machine 200 receives electrical energy, it begins to operate from a stationary state. The first clutch 15 is engaged, and the first electric machine 200 transmits power to the engine 300, pulling the engine 300 to initiate ignition and start the engine 300.

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

[0039] The engine 300 has a series power generation function. In such a functional state, the engine 300 is ignited, operating, and running, the second clutch 16 is disengaged, and neither the first electric machine 200 nor the engine 300 outputs power to the first drive wheel 2000. The engine 300 outputs power to the first electric machine 200 through the first clutch 15, and the first electric machine 200 operates to generate electricity and supply electrical energy to the energy storage unit 800 and / or the second electric machine 500. When the second electric machine 500 is operating, the second electric machine 500 can output power to the second drive wheel 3000. It should be noted that if the first drive wheel 2000 is a front wheel, the second drive wheel 3000 is a rear wheel. If the first drive wheel 2000 is a rear wheel, the second drive wheel 3000 is a front wheel. In this disclosure, it is used as an example for illustrative purposes that the first drive wheel 2000 is a front wheel and the second drive wheel 3000 is a rear wheel.

[0040] Parallel power generation function of engine 300. In such a functional state, engine 300 is ignited, operating and running, and engine 300 outputs power to the first drive wheels 2000 through the first clutch 15 and the second clutch 16, so that engine 300 drives and moves the vehicle 4000, and engine 300 outputs power to the first electric machine 200 through the first clutch 15, so that the first electric machine 200 is pulled and rotated, so that the first electric machine 200 is driven to generate electricity, so that the first electric machine 200 changes to generator mode, and engine 300 drives the first electric machine 200 to generate electricity and supply electrical energy to the energy storage unit 800 or the second electric machine 500.

[0041] Therefore, the hybrid powertrain 1000 in this disclosure has a simple structure and is easy to arrange and install. Thus, the production efficiency of the vehicle 4000 can be improved. In addition, when the engine 300 is located to the right of the first clutch 15 and the second clutch 16, the reversing component 700 is used to reverse the rotation of the engine output shaft 301 so that the rotation direction of the engine output shaft 301 is the same as the rotation direction of the first drive wheel 2000, in order to drive the vehicle 4000 forward and to ensure that the vehicle 4000 runs normally. In addition, a hybrid mode can be implemented by the first electromechanism 200 and the engine 300 as long as the first clutch 15 and the second clutch 16 are used appropriately. The structure is simple and costs are reduced compared to the case of multiple electromechanisms.

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

[0043] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the first clutch 15 may include a first housing 151 and a first driven member 152, wherein a first clutch plate 155 is located inside the first housing 151 and selectively engages with the first driven member 152, the first driven member 152 is connected to the engine output shaft 301, and the first housing 151 is connected to the drive member 11. In one embodiment, the first housing 151 may be rotatably mounted to the housing of the hybrid powertrain 1000 via 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 located between the mounting shaft 153 and the first housing 151. After the first driven member 152 moves relative to the first housing 151 and engages with the first housing 151, when the engine 300 is in operation, power can be output to the drive member 11 or to the first electric machine 200. When the first electric machine 200 is in operation, the first electric machine 200 can output power to the engine 300.

[0044] In some embodiments of this disclosure, the first driven member 152 is connected to the engine output shaft 301, as shown in Figures 1 and 2. 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, which are sequentially spaced apart, and a first groove 1511 is formed between adjacent first friction plates 155, and the first driven member 152 is arranged together with at least one second friction plate 156. For example, a plurality of second friction plates 156 are present, which are arranged in a one-to-one correspondence with a plurality of first grooves 1511, and the second friction plates 156 extend into the first grooves 1511. The first driven member 152 moves relative to the first housing 151 so 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 this disclosure, as shown in Figures 1 and 2, an intermediate gear 202 is engaged between the first housing 151 and the drive member 11. The intermediate gear 202 is engaged between the first housing 151 and the drive member 11 so as to transmit power. It can be ensured that the first housing 151 and the drive member 11 reliably transmit power. In this case, the first housing 151 is drivenly connected to the drive member 11.

[0046] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the first electromechanical output shaft 201 of the first electromechanical machine 200 is fixedly connected to the intermediate gear 202, and the first electromechanical output shaft 201 is coaxial with the intermediate gear 202. The first electromechanical output shaft 201 is fixedly connected to the intermediate gear 202. After the first housing 151 engages with the first driven member 152, the machine 300 is operated and the first housing 151 rotates, which drives the intermediate gear 202 to rotate, and as the intermediate gear 202 rotates, the first electromechanical machine 200 generates power, which drives the drive member 11 to rotate. In addition, the first electromechanical output shaft 201 is positioned coaxially with the intermediate gear 202 so that the intermediate gear 202 can be reliably engaged between the first housing 151 and the drive member 11, thereby preventing the intermediate gear 202 from rotating eccentrically and ensuring the operational performance of the hybrid powertrain 1000. Furthermore, when the first electromechanism 200 is in operation, the power of the first electromechanical output shaft 201 can be transmitted to the drive member 11 through the intermediate gear 202. After the first clutch 15 is engaged, the power of the first electromechanical output shaft 201 can be transmitted to the engine 300 through the first clutch 15 in order to obtain the technical effect of transmitting power from the first electromechanism 200 to the drive member 11 and the engine 300.

[0047] In some embodiments, as shown in Figures 1 and 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 by bolts, or welded to the drive member 11, or clamped to the drive member 11. A third friction plate 163 is positioned inside the second housing 161, and the second driven member 162 is configured to selectively engage with the third friction plate 163. The second driven member 162 moves relative to the second housing 161 so 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, power cannot be transmitted between the second housing 161 and the second driven member 162 in order to ensure that the second clutch component 16 has a clutch effect. In one embodiment, the second driven member 162 is drivenly connected to the reversing component 700 so that power is transmitted to the reversing component 700.

[0048] In some embodiments of the present disclosure, as shown in Figure 1, the second driven member 162 is arranged with a fourth friction plate 164, the third friction plate 163 and the fourth friction plate 164 are arranged alternately, and the third friction plate 163 and the fourth friction plate 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, the plurality of third friction plates 163 are sequentially spaced apart, grooves are formed between adjacent third friction plates 163, and the second driven member 162 is arranged with at least one fourth friction plate 164. For example, a plurality of fourth friction plates 164 are present, the plurality of fourth friction plates 164 are arranged in a one-to-one correspondence with a plurality of first grooves 1511, and the fourth friction plate 164 extends into the corresponding grooves. The second driven member 162 moves relative to the second housing 161 so that the third friction plate 163 and the fourth friction plate 164 are selectively engaged or disengaged, thereby controlling the engagement or disengagement of the second housing 161 and the second driven member 162.

[0049] In some embodiments of this disclosure, as shown in Figures 1 and 2, the second housing 161 and the drive member 11 are formed integrally. In other words, the second housing 161 and the drive member 11 are configured as a single unit. In such an arrangement, the connection strength of the second housing 161 and the drive member 11 can be improved, and the second housing 161 and the drive member 11 can be prevented from separating. In addition, the step of fabricating the second housing 161 separately can be omitted in order 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 drive member 11.

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

[0051] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the output end of a first differential 600 has a first gear 601, a second clutch 16 is arranged together with the first output gear 13, and a reversing component 700 is a reversing gear which engages between the first output gear 13 and the first gear 601. In one embodiment, a second driven member 162 of the second clutch 16 is arranged together 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 formed integrally with the second driven member 162 to reduce mold development costs and production costs. When the second driven member 162 engages with the second housing 161, the power of the drive member 11 is transmitted to the first differential 600 through the second clutch 16, the first output gear 13, the reversing gear 700, and the first gear 601, and the power is transmitted through the first differential 600 to the first drive wheels 2000 of the vehicle 4000 so that the vehicle 4000 is driven and moves.

[0052] In some embodiments of the present disclosure, as shown in Figure 3, the central axes of the first gear 601, the reversing gear 700, and the first output gear 13 are parallel, and the projections of the central axes of the first gear 601, the reversing gear, and 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 structures of the first gear 601, the reversing gear, and the first output gear 13 may be more compact in order 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. A drive member 11 is connected to the support shaft 14 and is arranged coaxially with the support shaft 14, and a second driven member 162 is rotatably sleeved on the support shaft 14. In one embodiment, the drive member 11 may be arranged as a drive gear, or the drive member 11 may be sleeved outside the support shaft 14, and the drive member 11 is fixedly connected to the support shaft 14, with the central axis of the drive member 11 coinciding 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 drive member 11 may be integrated and arranged on the same support shaft 14 so that the hybrid powertrain 1000 has a compact structure and so that the size of the hybrid powertrain 1000 is reduced. The hybrid powertrain 1000 occupies limited space, which helps in placing the hybrid powertrain 1000 on the vehicle 4000, but also reduces the production efficiency of the vehicle 4000.

[0054] In some embodiments of the present disclosure, as shown in Figures 1 and 2, the hybrid powertrain 1000 may further include a first bearing 142. A second driven member 162 is rotatably connected to a support shaft 14 through the first bearing 142. The first bearing 142 is sleeved on the outside of the support shaft 14 and is connected between the second driven member 162 and the support shaft 14 so 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 around 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, the hybrid powertrain 1000 may further include a housing, as shown in Figures 1 and 2. The support shaft 14 is rotatably connected to the housing through a second bearing 143. In one embodiment, the second bearing 143 is sleeved on the outside of the support shaft 14 and connects between the support shaft 14 and the housing, and the support shaft 14 is mounted and fixed through the second bearing 143 so 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 so that the support shaft 14 reliably supports the second clutch 16 in order to further ensure the operational performance of the second clutch 16.

[0056] In some embodiments of this disclosure, as shown in Figure 1, the first electromachine output shaft 201 of the first electromachine 200 is parallel to the engine output shaft 301. In such an arrangement, the arrangement of the first electromachine 200 and the engine 300 can be facilitated to avoid interference between the first electromachine 200 and the engine 300.

[0057] As shown in Figure 4, in another embodiment, the engine output shaft 301 is arranged 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 be fixedly connected to or integrally formed with the drive member 11 so that the first housing 151, the second housing 61, and the drive member 11 are fixedly connected, or so 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 Figure 1, the hybrid powertrain 1000 may further include a second electromechanism 500 (i.e., the second electromechanism 500 in the embodiments described above) and a transmission 400. The transmission 400 is connected between the second electromechanism 500 and a second differential 900, and the second electromechanism 500 outputs power to the second drive wheel 3000 through the transmission 400. In one embodiment, as shown in Figure 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 connected for driving, with the transmission input gear 401 fixedly connected to the second electromachine output shaft 501 of the second electromachine 500, and the second differential gear 900 having a second gear 901, with the transmission output gear 402 engaging with the second gear 901 for driving. 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, with the transmission drive gear 403 engaging with the transmission input gear 401, and the transmission output gear 402 engaging with the second gear 901 for driving.

[0059] In some embodiments of this disclosure, as shown in Figure 1, the hybrid powertrain 1000 may further include an energy storage unit 800. The energy storage unit 800 is electrically connected to the first electromachine 200. In one embodiment, the energy storage unit 800 is electrically connected to the second electromachine 500. The energy storage unit 800 may be a battery pack and can supply power to the first electromachine 200 and the second electromachine 500 to drive and operate them. When the second electromachine 500 is operating, the second electromachine output shaft 501 of the second electromachine 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. When 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 then output to the second drive wheel 3000 through the second differential 900 so that the second drive wheel 3000 is driven to rotate.

[0060] In some embodiments of the present disclosure, the drive member 11, the first clutch 15, and the second clutch 16 may be arranged in an integrated manner, the drive member 11 being drivenly connected to the first electromachine 200, and the first clutch 15 and the second clutch 16 being arranged on two sides of the drive member 11, respectively, to reduce the radial size of the hybrid powertrain 1000. Both the first clutch 15 and the second clutch 16 are connected to the drive member 11, and the first clutch 15 includes a first housing 151 and a first driven member 152, the first housing 151 being fixedly connected to the drive member 11, and the first driven member 152 being selectively engaged with the first housing 151. The first driven member 152 moves relative to the first housing 151 so 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, and 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, and the second housing 161 selectively engages 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, and 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 vehicle 4000 to perform several functions of vehicle 4000. Details are as follows:

[0062] A function to start the engine 300 when the first electric machine 200 is in an unloaded state. In such a functional state, the second driven member 162 is disconnected from the second housing 161, and the first electric machine 200 is in a stationary state. The energy storage unit 800 begins to supply power to the first electric machine 200, and the first electric machine 200 begins to operate from a stationary state, the first driven member 152 engages with the first housing 151, and 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 initiate ignition.

[0063] A function to start the engine 300 when the first electric machine 200 is under load. In such a functional state, the second housing 161 engages with the second driven member 162, and the energy storage unit 800 supplies power to the first electric machine 200, which is under load. The first driven member 152 begins to engage with the first housing 151 through sliding friction, and power is transmitted to the engine 300 through the first clutch 15, pulling the engine 300 and initiating ignition.

[0064] The engine 300 has a series power generation function. In such a functional state, the engine 300 is ignited, operating, and running, and the second driven member 162 is disconnected from the second housing 161. The first housing 151 begins to engage with the first driven member 152, and the engine 300 transmits power to the first electric machine 200 through the first driven member 152, the first housing 151, and the intermediate gear 202, and the first electric machine 200 operates to generate power and supply electrical energy to the energy storage unit 800 and / or the second electric machine 500.

[0065] Parallel power generation function of engine 300. In such a functional state, engine 300 is ignited, operating and running, with the first housing 151 engaged with the first driven member 152 and the second driven member 162 engaged with the second housing 161, and engine 300 drives vehicle 4000 to move and pulls and rotates the first electric machine 200, which then switches to generator mode, and engine 300 drives the first electric machine 200 to generate power and supply electrical energy to the energy storage unit 800 and / or the second electric machine 500.

[0066] A function to recover braking energy by a second electromechanism 500 while the vehicle is in motion. In such a functional state, the second driven member 162 is disconnected from the second housing 161, and the first driven member 152 is disconnected from the first housing 151. The vehicle 4000 transmits power to the second electromechanism 500 through the rear axle wheels (i.e., the rear drive axle), the second differential 900, and the transmission 400. The second electromechanism 500 generates electricity to power the energy storage unit 800 and / or the first electromechanism 200. This function is applicable to light braking and intermediate braking conditions.

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

[0068] After the hybrid powertrain 1000 is installed in the vehicle 4000, several 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 disengaged from the first housing 151. The energy storage unit 800 supplies power to the first electromachine 200, which operates to transmit power to the first drive wheels 2000 through the intermediate gear 202, drive member 11, second housing 161, second driven member 162, first output gear 13, reversing component 700, first gear 601, first differential 600, and front drive shaft, pulling the entire vehicle forward.

[0070] EV rear-wheel drive mode. In this mode, the second driven member 162 is disconnected from the second housing 161, and the first driven member 152 is disconnected from the first housing 151. The energy storage unit 800 supplies power to the second electromechanism 500, which operates to transmit power to the second drive wheels 3000 through the transmission 400, the second gear 901, the second differential 900, and the rear drive shaft, pulling the entire vehicle.

[0071] EV four-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 disengaged from the first housing 151. The energy storage unit 800 powers the first electromachine 200, which operates to transmit power to the first drive wheels 2000 through the intermediate gear 202, drive member 11, second housing 161, second driven member 162, first output gear 13, reversing component 700, first gear 601, first differential 600, and front drive shaft. The energy storage unit 800 also powers the second electromachine 500, which operates to transmit power to the second drive wheels 3000 through the transmission 400, second differential 900, and rear drive shaft. The first electric machine 200 and the second electric machine 500 operate together to pull the entire vehicle.

[0072] HEV front-wheel drive mode. In this mode, the engine 300 is ignited, operating, and running, with the second driven member 162 engaged with the second housing 161 and the first driven member 152 engaged with the first housing 151. The engine 300 transmits power to the first drive wheels 2000 through the first driven member 152, the first housing 151, the intermediate gear 202, the drive member 11, the second clutch 16, the first output gear 13, the reversing component 700, the first gear 601, the first differential 600, and the front drive shaft to pull the entire vehicle. If power is insufficient, the energy storage unit 800 supplies power to the first electromechanism 200 to help the engine 300 drive the entire vehicle. If there is excess power, the first electric machine 200 generates electricity and supplies electrical energy to the energy storage unit 800.

[0073] HEV rear-wheel drive mode. In this mode, the engine 300 is ignited, operating, and running, the second driven member 162 is disengaged from the second housing 161, and the first driven member 152 is engaged with the first housing 151. The engine 300 transmits power to the first electromechanism 200 through the first driven member 152, the first housing 151, and the intermediate gear 202, and the first electromechanism 200 operates to generate electricity and supply electrical energy to the second electromechanism 500. The second electromechanism 500 operates to transmit power to the second drive wheels 3000 through the transmission 400, the second differential 900, and the rear drive shaft, pulling and driving the entire vehicle. If power is insufficient, the energy storage unit 800 supplies power to the second electromechanism 500 to help drive the entire vehicle. If there is excess power, the first electric machine 200 supplies the surplus electrical energy to the energy storage unit 800.

[0074] HEV four-wheel drive mode. In this mode, the engine 300 is ignited, operating, and running, with the second driven member 162 engaged with the second housing 161 and the first driven member 152 engaged with the first housing 151. The first electric machine 200 transmits power to the first drive wheels 2000 through the intermediate gear 202, drive member 11, second clutch 16, first output gear 13, reversing component 700, first gear 601, first differential 600, and front drive shaft, pulling the entire vehicle. In addition, the energy storage unit 800 supplies power to the second electric machine 500, which operates and transmits power to the second drive wheels 3000 through the transmission 400, second differential 900, and rear drive shaft, pulling the entire vehicle together. If power is insufficient, the energy storage unit 800 supplies power to the first electric machine 200 to help drive and propel the entire vehicle. If power is in excess, the first electric machine 200 generates power and supplies electrical 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 aspirated or turbocharged), the performance parameters of engine 300 (e.g., displacement, power output, or torque), and the size parameters of engine 300 should be appropriately selected based on the actual situation. The types, performance parameters, size parameters, etc., of the first electric machine 200 and the second electric machine 500 can also be appropriately selected based on the actual situation.

[0076] As shown in Figure 5, the 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 arrange and install. Thus, the production efficiency of the vehicle 4000 can be improved. In addition, when the engine 300 is located to the right of the first clutch 15 and the second clutch 16, a reversing component 700 is used to reverse the rotation of the engine output shaft 301 so that the direction of rotation of the engine output shaft 301 is the same as the direction of rotation of the first drive wheel 2000, in order to drive the vehicle 4000 forward and to ensure that the vehicle 4000 runs normally.

[0077] In this specification, any description relating to the demonstrative pronouns "an embodiment," "some embodiments," "an example embodiment," "an example," "a specific example," or "some examples" means that the specific features, structures, materials, or characteristics described in relation to that embodiment or example are included in at least one embodiment or example of this disclosure. In this specification, the exemplary descriptions of the above words do not necessarily refer to the same embodiment or example. In addition, the specific features, structures, materials, or characteristics described may be combined in appropriate manner in any one or more embodiments or examples.

[0078] While embodiments of this disclosure are illustrated and described, those skilled in the art will understand that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of this disclosure, and that the scope of this disclosure is defined by the claims and their equivalents.

Claims

1. The system comprises a drive member (11), a first clutch (15), a second clutch (16), a first electric machine (200), a motor (300), and a reversing component (700), The first clutch (15) is drivenly connected to the engine output shaft (301) and the engine output shaft (301) of the engine (300) in order to selectively connect the drive member (11) and the engine output shaft (301). The second clutch (16) is connected between the drive member (11) and the reversing component (700), and the reversing component (700) is connected between the second clutch (16) and the first drive wheel (2000) in order to selectively connect the drive member (11) and the first drive wheel (2000). The first electric machine (200) is drivenly connected to the drive member (11) such that the first electric machine (200) and the engine (300) are selectively connected through the first clutch (15), When the engine (300) outputs power to the first drive wheel (2000), the reversing component (700) reverses the rotation so that the rotation direction of the engine output shaft (301) is the same as the rotation direction of the first drive wheel (2000). The reversing component (700) is arranged as a reversing gear and is mounted on a spare shaft (701), one end of the spare shaft (701) is mounted on a housing through a reversing bearing (702), and the other end of the spare shaft (701) is positioned to be suspended, in a hybrid powertrain (1000).

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

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

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

5. The hybrid powertrain (1000) according to claim 2, wherein the second clutch (16) comprises a second housing (161) and a second driven member (162), the second clutch plate is disposed inside the second housing (161), the second clutch plate is fixedly connected to the drive member (11), the second driven member (162) is configured to selectively engage with the second housing (161), and the second driven member (162) is drivenly connected to the reversing component (700).

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

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

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

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

10. The hybrid powertrain (1000) according to claim 5, further comprising a support shaft (14), wherein the drive member (11) is connected to the support shaft (14) and is arranged coaxially with the support shaft (14), and the second driven member (162) is rotatably sleeved on the support shaft (14).

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

13. The hybrid powertrain (1000) according to claim 1, further comprising an energy storage unit (800), wherein the energy storage unit (800) is electrically connected to the first electromechanism (200).

14. A second electrical machine (500), and The hybrid powertrain (1000) according to claim 1, further comprising a transmission device (400), the transmission device (400) being connected between the second electric machine (500) and the second differential (900), the second electric machine (500) outputting power to the second drive wheel (3000) through the transmission device (400).

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

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