Hybrid transmission device and vehicle

Abstract

The invention provides a hybrid transmission device and a vehicle. The hybrid transmission device comprises a first power source, an input shaft, a first planet row assembly, a first output shaft, a second power source, a speed reduction assembly, a second output shaft, a third power source, a third output shaft and a second planet row assembly which are sequentially arranged from one side to the other side; the transfer case assemblies are arranged in parallel; the speed reduction assembly comprises a first driving gear, a first clutch, a second driving gear, a second clutch and an output large gear which are sequentially arranged on the input shaft from one side to the other side, an intermediate shaft parallel to the input shaft, and a first driven gear, a second driven gear and an output small gear which are arranged on the intermediate shaft. The first driven gear is meshed with the first driving gear, one side of the second driven gear is meshed with the second driving gear, and the other side of the second driven gear is connected with the transfer case assembly. The hybrid transmission device solves the problems that a hybrid transmission device in the prior art is large in size, high in cost, low in fuel economy and complex in control.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile transmission, and in particular to a hybrid transmission device and a vehicle. Background Art

[0002] As a new energy-saving and environmentally friendly vehicle, the technology and market of hybrid electric vehicles (HEV) are in a booming development stage. The biggest difference between hybrid electric vehicles and traditional vehicles and pure electric vehicles is the power system. For parallel and hybrid HEVs, the power coupling system is responsible for combining multiple power sources of HEV, realizing reasonable power distribution among multiple power sources and transmitting power to the drive axle. It plays an important role in the development of HEV. Its performance is directly related to whether the performance of the HEV meets the design requirements. It is the core part of HEV.

[0003] Conventional hybrid four-wheel drive systems often adopt a distributed design, usually with a dual-motor hybrid system for the front wheels and a single-motor drive axle system for the rear wheels. This solution not only takes up a lot of space, has many parts, and is costly, but is also complex to control and has low fuel economy. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a hybrid transmission device and a vehicle, aiming to solve the problems of large size, high cost, low fuel economy and complex control of hybrid transmission devices in the prior art.

[0005] A hybrid transmission device according to an embodiment of the present invention comprises a first power source, an input shaft, a first planetary gear assembly, a first output shaft, a second power source, a reduction assembly, a second output shaft, a third power source, a third output shaft, and a second planetary gear assembly, and a transfer case assembly arranged in parallel, which are arranged in sequence from one side to the other side;

[0006] The reduction assembly includes a first driving gear, a first clutch, a second driving gear, a second clutch, and an output gear mounted on the second output shaft, which are arranged on the input shaft in sequence from one side close to the first power source to the other side, and an intermediate shaft arranged parallel to the input shaft, and a first driven gear, a second driven gear and an output pinion gear arranged on the intermediate shaft, the first driven gear is meshed with the first driving gear, one side of the second driven gear is meshed with the second driving gear, and the other side is connected to the transfer case assembly, and the output pinion gear is meshed with the output gear;

[0007] The second output shaft is coaxially arranged with the input shaft, and the second output shaft and the input shaft are connected or separated by the second clutch. One end of the second output shaft is connected with the output gear, and the other end is connected with the second planetary gear assembly.

[0008] In addition, a hybrid transmission device according to the above embodiment of the present invention may also have the following additional technical features:

[0009] Furthermore, the first planetary gear assembly includes a first sun gear, a first planetary gear, a first planet carrier and a first ring gear, the first planet carrier is fixedly connected to the input shaft, the first sun gear is fixedly connected to the first output shaft, the first ring gear is used to connect to the gearbox housing, and the first planetary gear is arranged on the first planet carrier and revolves around the first sun gear.

[0010] Furthermore, one end of the first output shaft is connected to the second power source, and the other end is fixedly connected to the first sun gear. The second power source and the first output shaft are loosely mounted on the input shaft and are coaxially arranged with the input shaft.

[0011] Furthermore, the second planetary gear assembly includes a second sun gear, a second planetary gear, a second planet carrier and a second ring gear, the second planet carrier is fixedly connected to the second output shaft, the second sun gear is fixedly connected to the third output shaft, the second ring gear is used to connect to the gearbox housing, and the second planetary gear is arranged on the second planet carrier and revolves around the second sun gear.

[0012] Furthermore, one end of the third output shaft is connected to the third power source, and the other end is fixedly connected to the second sun gear. The third power source and the third output shaft are loosely mounted on the second output shaft and are concentrically arranged with the input shaft.

[0013] Furthermore, the transfer case assembly includes a fourth output shaft arranged parallel to the input shaft, a differential arranged on one side of the fourth output shaft, a third clutch and an output gear arranged on the other side of the fourth output shaft, the differential being provided with a differential gear, one end of the fourth output shaft being meshed with the differential gear, and the other end being connected to the third clutch, the output gear being meshed with the second driven gear, and a connecting shaft coaxial with the fourth output shaft being provided in the middle and connected to the third clutch.

[0014] Furthermore, the first power source is an engine, the second power source is a generator, and the third power source is a drive motor.

[0015] Furthermore, the first clutch and the second clutch are dog clutches.

[0016] Furthermore, another object of the present invention is a vehicle having the above-mentioned hybrid transmission device.

[0017] The present invention integrates multiple systems such as a dual-motor controller, a generator, a drive motor, a speed reducer, and a transfer case, and arranges the engine, generator, and drive motor coaxially, thereby simplifying the arrangement structure, reducing redundant design, and reducing the volume. In addition, by using a dual planetary gear, a compact design of a dual-motor longitudinal four-wheel drive hybrid transmission device is achieved, the axial arrangement length is shortened, and a smaller volume is achieved. In addition, by setting a transfer case assembly, the driving power is transmitted to the front wheel to achieve a timely four-wheel drive function. At the vehicle level, a set of electric drive axle assemblies is reduced, reducing the cost and weight of the vehicle. And through a dual-motor longitudinal four-wheel drive hybrid transmission device, a timely four-wheel drive function can be achieved. Without a complex control system to achieve optimal utilization of energy, the control is simpler, and the development cost of the vehicle is further reduced. The shift mechanism uses a dog tooth combination mechanism for shifting, which further reduces the system cost. In addition, this arrangement realizes multi-mode drive. It drives in pure electric mode at low speed, drives in series range-extending mode at medium speed, drives in engine parallel mode at high speed, and drives the drive motor to recover braking energy during braking. The optimal operating mode of the system is adjusted according to the vehicle speed demand, thereby improving fuel economy. Therefore, the present invention solves the problems of large size, high cost, low fuel economy and complex control of the hybrid transmission device in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of a hybrid transmission device in one embodiment of the present invention;

[0019] Figure 2 is a schematic structural diagram of a hybrid transmission device in one embodiment of the present invention;

[0020] Figure 3 Schematic diagram of power flow in a pure electric two-wheel drive mode in an embodiment of the present invention;

[0021] Figure 4 Schematic diagram of power flow in pure electric four-wheel drive mode in one embodiment of the present invention;

[0022] Figure 5 A schematic diagram of power flow in a series extended-range two-wheel drive mode in an embodiment of the present invention;

[0023] Figure 6 A schematic diagram of power flow in a series extended-range four-wheel drive mode in an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the power flow of the engine direct drive 1st gear 2-wheel drive mode in one embodiment of the present invention;

[0025] Figure 8It is a schematic diagram of the power flow of the engine direct drive 1st gear four-wheel drive mode in one embodiment of the present invention;

[0026] Fig. 9 It is a schematic diagram of power flow in the first gear two-wheel drive mode of engine direct drive power generation in one embodiment of the present invention;

[0027] Fig.10 It is a schematic diagram of the power flow in the first gear four-wheel drive mode of the engine direct drive power generation in one embodiment of the present invention;

[0028] Fig.11 It is a schematic diagram of power flow in a parallel engine 1st gear 2-wheel drive mode in one embodiment of the present invention;

[0029] Fig.12 It is a schematic diagram of power flow in a 1st gear four-wheel drive mode of parallel engines in one embodiment of the present invention;

[0030] Fig.13 It is a schematic diagram of the power flow of the engine direct drive 2-gear 2-wheel drive mode in one embodiment of the present invention;

[0031] Fig.14 It is a schematic diagram of the power flow of the engine direct drive 2nd gear 4WD mode in one embodiment of the present invention;

[0032] Fig.15 It is a schematic diagram of power flow in a 2-gear 2-wheel drive mode of engine direct drive power generation in one embodiment of the present invention;

[0033] Fig.16 It is a schematic diagram of power flow in a 2-gear four-wheel drive mode of engine direct drive power generation in one embodiment of the present invention;

[0034] Fig.17 It is a schematic diagram of power flow in a 2-gear 2-wheel drive mode in parallel with an engine in an embodiment of the present invention;

[0035] Fig.18 It is a schematic diagram of power flow in a 2-gear four-wheel drive mode of parallel engines in one embodiment of the present invention;

[0036] Fig.19 It is a schematic diagram of the power flow of the engine direct drive 3-gear 2-wheel drive mode in one embodiment of the present invention;

[0037] Fig. 20 It is a schematic diagram of the power flow of the engine direct drive 3rd gear 4WD mode in one embodiment of the present invention;

[0038] Fig.21 It is a schematic diagram of power flow in a three-speed two-wheel drive mode of engine direct drive power generation in one embodiment of the present invention;

[0039] Fig. 22 It is a schematic diagram of power flow in a three-speed four-wheel drive mode of an engine direct-drive power generation in one embodiment of the present invention;

[0040] Fig.23 It is a schematic diagram of power flow in a three-speed two-wheel drive mode in parallel with an engine in an embodiment of the present invention;

[0041] Fig.24 It is a schematic diagram of power flow in a three-speed four-wheel drive mode in parallel with an engine in an embodiment of the present invention;

[0042] Fig.25 Schematic diagram of power flow in a braking energy recovery mode in an embodiment of the present invention;

[0043] Description of main component symbols:

[0044] The first power source 100 Input shaft 200 First planetary gear assembly 300 First output shaft 400 Second power source 500 Speed ​​reduction components 600 Second output shaft 700 The third power source 800 Third output shaft 900 Second planetary gear assembly 1000 Transfer case components 1100 First driving gear 601 First driven gear 602 First clutch 603 Second driving gear 604 Second driven gear 605 Second clutch 606 Output gear 607 Output pinion 608 First planet carrier 301 First ring gear 302 First planetary gear 303 First sun gear 304 Second ring gear 1001 Second planetary gear 1002 Second sun gear 1003 Second planet carrier 1004 Output gear 1101 Third clutch 1102 Fourth output shaft 1103 Differential gear 1104 Differential 1105

[0045] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0046] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0047] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0049] See also Figure 1 and Figure 2 , which shows a hybrid transmission device in an embodiment of the present invention, and specifically includes a first power source 100, an input shaft 200, a first planetary gear assembly 300, a first output shaft 400, a second power source 500, a reduction assembly 600, a second output shaft 700, a third power source 800, a third output shaft 900, and a second planetary gear assembly 1000, which are sequentially arranged from one side to the other side, and a transfer case assembly 1100 arranged in parallel;

[0050] The reduction assembly 600 includes a first driving gear 601, a first clutch 603, a second driving gear 604, a second clutch 606, and an output gear 607 installed on the second output shaft 700, which are sequentially arranged on the input shaft 200 from one side close to the first power source 500 to the other side, and an intermediate shaft arranged in parallel with the input shaft 200, and a first driven gear 602, a second driven gear 605, and an output pinion 608 arranged on the intermediate shaft. The first driven gear 602 is meshed with the first driving gear 601, one side of the second driven gear 605 is meshed with the second driving gear 604, and the other side is meshed with the output gear 1101 of the transfer case assembly 1100, and the output pinion 608 is meshed with the output gear 607;

[0051] The second output shaft 700 is coaxially arranged with the input shaft 200 , and the second output shaft 700 and the input shaft 200 are connected or separated by the second clutch 606 . One end of the second output shaft 700 is fixedly connected to the output gear 607 , and the other end is connected to the second planetary gear assembly 1000 .

[0052] It should be noted that in the specific implementation, the first power source 100 is an engine, the second power source 500 is a generator, the third power source 800 is a drive motor, and the first clutch 603 and the second clutch 606 are dog clutches. In addition, the engine direct drive working condition has 3 optional gears, and the engine direct drive has a wider speed ratio range, allowing the engine to work in the optimal efficiency range to improve fuel economy. The engine can intervene earlier to provide power during rapid acceleration and has stronger backup power during high-speed cruising. In addition, a transfer case assembly 1100 is provided to transmit power to the front and rear wheels at the same time, realizing timely four-wheel drive, further improving the power performance and off-road capability of the vehicle.

[0053] Specifically, the first planetary gear assembly 300 includes a first sun gear 304, a first planetary gear 303, a first planetary carrier 301 and a first ring gear 302. The first planetary carrier 301 is fixedly connected to the input shaft 200, the first sun gear 304 is fixedly connected to the first output shaft 400, the first ring gear 302 is used to connect to the gearbox housing, the first planetary gear 303 is arranged on the first planetary carrier 301 and revolves around the first sun gear 304, the second power source 500 and the first output shaft 400 are loosely sleeved on the input shaft 200 and are coaxially arranged with the input shaft 200, one end of the first output shaft 400 is connected to the second power source 500, and the other end is fixedly connected to the first sun gear 304. In specific implementation, by setting the first planetary gear assembly 300, the engine transmits power to the generator, and the generator enters the power generation mode to generate electricity, so that the engine and the generator are both in a suitable power range, thereby improving the fuel performance of the vehicle.

[0054] Further, the second planetary gear assembly 1000 includes a second sun gear 1003, a second planetary gear 1002, a second planetary carrier 1004 and a second ring gear 1001, the second planetary carrier 1004 is fixedly connected to the second output shaft 700, the second sun gear 1003 is fixedly connected to the third output shaft 900, the second ring gear 1001 is used to connect to the gearbox housing, the second planetary gear 1002 is arranged on the second planetary carrier 1004 and revolves around the second sun gear 1003, one end of the third output shaft 900 is connected to the third power source 800, and the other end is fixedly connected to the second sun gear 1003, the third power source 800 and the third output shaft 900 are loosely sleeved on the second output shaft 700 and are concentrically arranged with the input shaft 200. Through the second planetary gear, the drive motor can be connected to the second output shaft 700 for power, so as to realize the electric drive function of the vehicle. In addition, the planetary gear is arranged to make the structure compact and the overall volume smaller.

[0055] Further, the transfer case assembly 1100 includes a fourth output shaft 1103 arranged in parallel with the input shaft 200, a differential 1105 arranged on one side of the fourth output shaft 1103, a third clutch 1102 arranged on the other side of the fourth output shaft 1103, and an output gear 1101, wherein the differential 1105 is provided with a differential gear 1104, one end of the fourth output shaft 1103 is meshed with the differential gear 1104, and the other end is connected to the third clutch 1102, the output gear 1101 is meshed with the second driven gear 605, and a connecting shaft coaxial with the fourth output shaft 1103 is provided in the middle and connected to the third clutch 1102. By providing the transfer case assembly 1100, the vehicle can be switched between the four-wheel drive mode and the two-wheel drive mode by controlling whether the third clutch 1102 is engaged, so that the vehicle can adapt to more driving conditions.

[0056] The following will introduce the driving modes of the hybrid transmission device under different requirements:

[0057] 1. Pure electric two-wheel drive mode

[0058] In this mode, only the third power source 800, i.e., the drive motor, drives the vehicle. The power is transmitted from the third power source 800 to the second sun gear 1003 through the third output shaft 900, and then through the cooperation of the second sun gear 1003 and the second planetary gear 1002, the cooperation of the second planetary gear 1002, the second ring gear 1101 and the second planetary carrier 1004, and the fixed connection between the second planetary carrier 1004 and the second output shaft 700, the power is output from the second output shaft 700, realizing the pure electric two-wheel drive mode. For specific power flow, please refer to Figure 3 .

[0059] 2. Pure electric four-wheel drive mode

[0060] In this mode, only the third power source 800, i.e., the drive motor, drives the vehicle. At the same time, the third clutch 1102 is combined on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected in power. The power is transmitted from the third power source 800 through the third output shaft 900, and then through the planetary gear assembly 1000, so that the power is transmitted to the second output shaft 700. One side of the second output shaft 700 outputs the power to the left and right wheels of the rear axle, and the other side transmits the power to the output pinion 608 through the output large gear 607, thereby driving the intermediate shaft to rotate. The intermediate shaft then transmits the power to the fourth output shaft 1103 through the meshing of the second driven gear 605 and the output gear 1101, and then transmits the power to the differential 1105 through the differential gear 1104, that is, the other side passes through the transfer case assembly 1100, and the differential 1105 of the transfer case assembly 1100 outputs the power to the left and right wheels of the front axle, thereby realizing the pure electric four-wheel drive mode. For specific power flow, please refer to Figure 4 .

[0061] 3. Series extended-range two-wheel drive mode

[0062] In this mode, the first power source 100, the second power source 500 and the third power source 800 are all started, and the engine is driven, so that the power is transmitted to the first planetary carrier 301 through the input shaft 200, and then the power is transmitted to the first output shaft 400 through the cooperation between the first planetary carrier 301 and the first planetary gear 303, the cooperation between the first planetary gear 303 and the first ring gear 302 and the first sun gear 304, and then transmitted to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the third power source 800, that is, the drive motor drives the vehicle to work, and the power is transmitted from the third power source 800 through the third output shaft 900, and the power is transmitted to the second output shaft 700 through the second row assembly 1000, thereby realizing the series extended-range two-wheel drive mode. For specific power flow, please refer to Figure 5 .

[0063] 4. Series Extended Range Four-wheel Drive Mode

[0064] In this mode, the first power source 100, the second power source 500 and the third power source 800 are all started, and the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected in power, that is, the engine is driven, so that the power is transmitted through the input shaft 200, and the power is transmitted to the first output shaft 400 through the first planetary gear assembly 300, and then transmitted to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the third power source 800, that is, the drive motor drives the vehicle to work, and the power is transmitted from the third power source 800 through the third output shaft 900, and the power is transmitted to the second output shaft 700 through the second planetary gear assembly 1000. One side of the second output shaft 700 outputs power to the left and right wheels of the rear axle, and the other side outputs power to the left and right wheels of the front axle through the transfer case assembly 1100, thereby realizing the series extended-range four-wheel drive mode. For specific power flow, please refer to Figure 6 .

[0065] 5. Engine direct drive 1st gear 2WD mode

[0066] In this mode, the first power source 100 is started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the second driving gear 604 through the first clutch 603. The second driving gear 604 is meshed with the second driven gear 605, and the power is transmitted to the intermediate shaft. Then, the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and then the power is transmitted to the second output shaft 700, realizing the engine direct drive 1st gear two-wheel drive mode. For specific power flow, please refer to Figure 7 .

[0067] 6. Engine direct drive 1st gear 4WD mode

[0068] In this mode, the first power source 100 is started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to each other. That is, the power is transmitted from the engine to the first clutch 603 through the input shaft 200, and then transmitted to the second driving gear 604 through the first clutch 603. The second driving gear 604 is meshed with the second driven gear 605, and the power is transmitted to the intermediate shaft. Then, the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and then the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively, and the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, so as to achieve the engine direct drive 1st gear four-wheel drive mode. For specific power flow, please refer to Figure 8 .

[0069] 5. Engine direct drive power generation 1st gear 2-wheel drive mode

[0070] In this mode, the first power source 100 and the second power source 500 are started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. The power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits the power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the first clutch 603 through the input shaft 200, and then transmitted to the second driving gear 604 through the first clutch 603, and the second driving gear 604 is meshed with the second driven gear 605, and the power is transmitted to the intermediate shaft, and then the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and then the power is transmitted to the second output shaft 700, realizing the engine direct drive power generation 1st gear two-wheel drive mode. For specific power flow, please refer to Fig. 9 .

[0071] 6. Engine direct drive power generation 1st gear 4WD mode

[0072] In this mode, the first power source 100 and the second power source 500 are started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to achieve power. That is, the power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits the power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the first clutch 603 through the input shaft 200, and then transmitted to the second driving gear 604 through the first clutch 603, and the second driving gear 604 is meshed with the second driven gear 605 to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and then the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively, and the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine direct drive power generation 1st gear four-wheel drive mode. For specific power flow, please refer to Fig.10 .

[0073] 7. Engine parallel 1st gear 2WD mode

[0074] In this mode, the first power source 100 and the third power source 800 are started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the second driving gear 604 through the first clutch 603. The second driving gear 604 is meshed with the second driven gear 605 to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and then the power is transmitted to the second output shaft 700. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and the power of the third power source 800 is transmitted to the second output shaft 700 through the second planetary gear assembly 1000, realizing the engine parallel 1st gear two-wheel drive mode. For specific power flow, please refer to Fig.11 .

[0075] 8. Engine parallel 1st gear 4WD 2WD mode

[0076] In this mode, the first power source 100 and the third power source 800 are started, and the first clutch 603 is engaged to the right to achieve power connection with the second driving gear 604. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to power. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the second driving gear 604 through the first clutch 603. The second driving gear 604 is meshed with the second driven gear 605, and the power is transmitted to the intermediate shaft, and then through the output pinion 608 on the intermediate shaft and the second output pinion 608. The output gear 607 on the shaft 700 is meshed, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and the power of the third power source 800 is transmitted to the second output shaft 700 through the second planetary gear assembly 1000, so that the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1000, so as to realize the engine parallel 1st gear four-wheel drive mode. For specific power flow, please refer to Fig.12 .

[0077] 9. Engine direct drive 2-speed 2WD mode

[0078] In this mode, the first power source 100 is started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the first driving gear 601 through the first clutch 603. The first driving gear 601 and the first driven gear 602 are meshed to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft and the output large gear 607 on the second output shaft 700 are meshed to transmit the power to the second output shaft 700, realizing the engine direct drive 2-speed two-wheel drive mode. For specific power flow, please refer to Fig.13 .

[0079] 10. Engine direct drive 2-speed 4WD mode

[0080] In this mode, the first power source 100 is started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to each other. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the first driving gear 601 through the first clutch 603. The first driving gear 601 and the first driven gear 602 are meshed to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft and the output large gear 607 on the second output shaft 700 are meshed, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and then the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively, and the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine direct drive 2-speed four-wheel drive mode. For specific power flow, please refer to Fig.14 .

[0081] 9. Engine direct drive power generation 2-speed 2-wheel drive mode

[0082] In this mode, the first power source 100 and the second power source 500 are started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601, and the power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the first clutch 603 through the input shaft 200, and then transmitted to the first driving gear 601 through the first clutch 603, and the first driving gear 601 and the first driven gear 602 are meshed to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft and the output gear 607 on the second output shaft 700 are meshed, and then the power is transmitted to the second output shaft 700, realizing the engine direct drive power generation 2-speed two-wheel drive mode. For specific power flow, please refer to Fig.15 .

[0083] 10. Engine direct drive power generation 2-speed 4WD mode

[0084] In this mode, the first power source 100 and the second power source 500 are started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to achieve power connection, and the power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the first clutch 603 through the input shaft 200, and then transmitted to the first driving gear 601 through the first clutch 603, and the first driving gear 601 is meshed with the first driven gear 602 to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft is meshed with the output gear 607 on the second output shaft 700, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and then the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively, and the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine direct drive power generation 1st gear four-wheel drive mode. For specific power flow, please refer to Fig.16 .

[0085] 11. Engine parallel 2-speed 2WD mode

[0086] In this mode, the first power source 100 and the third power source 800 are started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601. The power is transmitted from the engine through the input shaft 200 to the first clutch 603, and then transmitted to the first driving gear 601 through the first clutch 603. The first driving gear 601 and the first driven gear 602 are meshed to transmit the power to the intermediate shaft, and then the output pinion 608 on the intermediate shaft is meshed with the output large gear 607 on the second output shaft 700, and then the power is transmitted to the second output shaft 700. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and through the second planetary gear assembly 1000, the power of the third power source 800 is transmitted to the second output shaft 700, realizing the engine parallel 2-speed two-wheel drive mode. For specific power flow, please refer to Fig.17 .

[0087] 12. Engine parallel 2-speed 4WD mode

[0088] In this mode, the first power source 100 and the third power source 800 are started, and the first clutch 603 is engaged to the left to achieve power connection with the first driving gear 601. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to power. The power is transmitted from the engine, transmitted to the first clutch 603 through the input shaft 200, and then transmitted to the first driving gear 601 through the first clutch 603. The first driving gear 601 and the first driven gear 602 are meshed to transmit the power to the intermediate shaft, and then through the output pinion 608 on the intermediate shaft and the second output pinion 608. The output gear 607 on the output shaft 700 is meshed, and the second driven gear 605 on the intermediate shaft is meshed with the output gear 1101, and the power is transmitted from the intermediate shaft to the second output shaft 700 and the fourth output shaft 1103 respectively. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and the power of the third power source 800 is transmitted to the second output shaft 700 through the second planetary gear assembly 1000, so that the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine parallel 2-speed four-wheel drive mode. For specific power flow, please refer to Fig.18 .

[0089] 13. Engine direct drive 3-speed 2WD mode

[0090] In this mode, the first power source 100 is started, and the second clutch 606 is engaged to the right, and the power connection is achieved with the second output shaft 700. The power is transmitted from the engine through the input shaft 200 to the second clutch 606, and then transmitted to the second output shaft 700 through the second clutch 606, realizing the engine direct drive 3rd gear two-wheel drive mode. For specific power flow, please refer to Fig.19 .

[0091] 14. Engine direct drive 3-speed 4WD mode

[0092] In this mode, the first power source 100 is started, and the second clutch 606 is engaged to the right to achieve power connection with the second output shaft 700. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to each other. The power is transmitted from the engine through the input shaft 200 to the second clutch 606, and then transmitted to the second output shaft 700 through the second clutch 606. One side of the second output shaft 700 outputs power to the left and right wheels of the rear axle, and the other side transmits power to the output pinion 608 through the output large gear 607, thereby driving the intermediate shaft to rotate. The intermediate shaft then meshes with the output gear 1101 through the second driven gear 605, and outputs power to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine direct drive 3-speed four-wheel drive mode. For specific power flow, please refer to Fig. 20 .

[0093] 13. Engine direct drive power generation 3-speed two-wheel drive mode

[0094] In this mode, the first power source 100 and the second power source 500 are started, and the second clutch 606 is engaged to the right to achieve power connection with the second output shaft 700, and the power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the second clutch 606 through the input shaft 200, and then transmitted to the second output shaft 700 through the second clutch 606, realizing the engine direct drive power generation 3-speed two-wheel drive mode. For specific power flow, please refer to Fig.21 .

[0095] 14. Engine direct drive power generation 3-speed 4WD mode

[0096] In this mode, the first power source 100 and the second power source 500 are started, and the second clutch 606 is engaged to the right to achieve power connection with the second output shaft 700. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to achieve power connection, and the power is transmitted from the engine through the input shaft 200. The input shaft 200 transmits power to the first output shaft 400 through the first planetary gear assembly 300, and then transmits it to the second power source 500, that is, the generator, through the first output shaft 400, and then the motor generates electricity and transmits the electricity to the motor controller. At the same time, the power is transmitted to the second clutch 606 through the input shaft 200, and then transmitted to the second output shaft 700 through the second clutch 606. One side of the second output shaft 700 outputs the power to the left and right wheels of the rear axle, and the other side transmits the power to the output pinion 608 through the output large gear 607, thereby driving the intermediate shaft to rotate. The intermediate shaft then meshes with the output gear 1101 through the second driven gear 605, and outputs the power to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine direct drive power generation 3-speed four-wheel drive mode. For specific power flow, please refer to Fig. 22 .

[0097] 15. Engine parallel 3-speed 2WD mode

[0098] In this mode, the first power source 100 and the third power source 800 are started, and the second clutch 606 is engaged to the right to achieve power connection with the second output shaft 700. The power is transmitted from the engine through the input shaft 200 to the second clutch 606, and then transmitted to the second output shaft 700 through the second clutch 606. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and through the second planetary gear assembly 1000, so that the power of the third power source 800 is transmitted to the second output shaft 700, realizing the engine parallel 3-speed two-wheel drive mode. For specific power flow, please refer to Fig.23 .

[0099] 16. Engine parallel 3-speed 4WD mode

[0100] In this mode, the first power source 100 and the third power source 800 are started, and the second clutch 606 is engaged to the right to achieve power connection with the second output shaft 700. At the same time, the third clutch 1102 is engaged on both sides, so that the fourth output shaft 1103 and the output gear 1101 are connected to power. The power is transmitted from the engine through the input shaft 200 to the second clutch 606, and then transmitted to the second output shaft 700 through the second clutch 606. One side of the second output shaft 700 outputs power to the left and right wheels of the rear axle, and the other side transmits power to the output large gear 607. The output pinion 608 drives the intermediate shaft to rotate, and the intermediate shaft then transmits power to the fourth output shaft 1103 through the meshing of the second driven gear 605 and the output gear 1101. At the same time, the power is transmitted from the third power source 800 through the third output shaft 900, and the power of the third power source 800 is transmitted to the second output shaft 700 through the second planetary gear assembly 1000, so that the power is output to the left and right wheels of the rear axle through the second output shaft 700, and the power is output to the left and right wheels of the front axle through the transfer case assembly 1100, realizing the engine parallel 3-speed four-wheel drive mode. For specific power flow, please refer to Fig.24 .

[0101] 17. Braking Energy Recovery Mode

[0102] In this mode, no power source is started, and energy is transmitted from the wheels to the second output shaft 700, and then to the third output shaft 900 through the second planetary gear assembly 1000, and then transmitted from the third output shaft 900 to the third power source 800, that is, the drive motor 800, entering the power generation mode, and the power is transmitted to the motor controller to achieve braking energy recovery. For specific power flow, please refer to Fig.25 .

[0103] In summary, the hybrid transmission device in the above embodiment of the present invention integrates multiple systems such as a dual-motor controller, a generator, a drive motor, a speed reduction device, and a transfer case, and arranges the engine, the generator, and the drive motor coaxially, thereby simplifying the arrangement structure, reducing redundant design, and reducing the volume. In addition, by using a double planetary gear, a compact design of a dual-motor longitudinal four-wheel drive hybrid transmission device is achieved, the axial arrangement length is shortened, and a smaller volume is achieved. In addition, by setting a transfer case assembly 1100, the driving power is transmitted to the front wheel to achieve a timely four-wheel drive function. At the vehicle level, a set of electric drive axle assemblies is reduced, reducing the cost and weight of the vehicle. And through a dual-motor longitudinal four-wheel drive hybrid transmission device, a timely four-wheel drive function can be achieved. Without a complex control system to achieve optimal utilization of energy, the control is simpler, and the vehicle development cost is further reduced, and the shift mechanism uses a dog tooth combination mechanism for shifting, which further reduces the system cost. And the shift mechanism uses a dog tooth combination mechanism for shifting, which further reduces the system cost. And this setting realizes multi-mode drive. The system is driven in pure electric mode at low speed, in series range-extending mode at medium speed, and in engine parallel mode at high speed. The drive motor is used to recover braking energy during braking. The system is adjusted to the optimal operating mode according to the vehicle speed requirements, thereby improving fuel economy. Therefore, the present invention solves the problems of large size, high cost, low fuel economy and complex control of hybrid transmission devices in the prior art.

[0104] Another aspect of the present invention further provides a vehicle, wherein the vehicle is equipped with the hybrid transmission device described above.

[0105] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0106] The above embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the attached claims.

Claims

1. A hybrid transmission device, characterized in that: The hybrid transmission device includes a first power source, an input shaft, a first planetary gear assembly, a first output shaft, a second power source, a reduction assembly, a second output shaft, a third power source, a third output shaft, and a second planetary gear assembly, and a transfer case assembly arranged in parallel from one side to the other side in sequence; The reduction assembly includes a first driving gear, a first clutch, a second driving gear, a second clutch, and an output gear mounted on the second output shaft, which are arranged on the input shaft in sequence from one side close to the first power source to the other side, and an intermediate shaft arranged parallel to the input shaft, and a first driven gear, a second driven gear and an output pinion gear arranged on the intermediate shaft, the first driven gear is meshed with the first driving gear, one side of the second driven gear is meshed with the second driving gear, and the other side is connected to the transfer case assembly, and the output pinion gear is meshed with the output gear; The second output shaft is coaxially arranged with the input shaft, and the second output shaft and the input shaft are connected or separated by the second clutch. One end of the second output shaft is connected with the output gear, and the other end is connected with the second planetary gear assembly.

2. The hybrid transmission device according to claim 1, characterized in that: The first planetary gear assembly includes a first sun gear, a first planetary gear, a first planet carrier and a first ring gear, the first planet carrier is fixedly connected to the input shaft, the first sun gear is fixedly connected to the first output shaft, the first ring gear is used to connect to the gearbox housing, and the first planetary gear is arranged on the first planet carrier and revolves around the first sun gear.

3. The hybrid transmission device according to claim 2, characterized in that: One end of the first output shaft is connected to the second power source, and the other end is fixedly connected to the first sun gear. The second power source and the first output shaft are loosely sleeved on the input shaft and are coaxially arranged with the input shaft.

4. The hybrid transmission device according to claim 1, characterized in that: The second planetary gear assembly includes a second sun gear, a second planetary gear, a second planet carrier and a second ring gear, the second planet carrier is fixedly connected to the second output shaft, the second sun gear is fixedly connected to the third output shaft, the second ring gear is used to connect to the gearbox housing, and the second planetary gear is arranged on the second planet carrier and revolves around the second sun gear.

5. The hybrid transmission device according to claim 4, characterized in that: One end of the third output shaft is connected to the third power source, and the other end is fixedly connected to the second sun gear. The third power source and the third output shaft are loosely sleeved on the second output shaft and are concentrically arranged with the second output shaft.

6. The hybrid transmission device according to claim 1, characterized in that: The transfer case assembly includes a fourth output shaft arranged parallel to the input shaft, a differential arranged on one side of the fourth output shaft, a third clutch and an output gear arranged on the other side of the fourth output shaft, the differential is provided with a differential gear, one end of the fourth output shaft is meshed with the differential gear, and the other end is connected to the third clutch, the output gear is meshed with the second driven gear, and a connecting shaft coaxial with the fourth output shaft is provided in the middle to be connected to the third clutch.

7. The hybrid transmission device according to claim 1, characterized in that: The first power source is an engine, the second power source is a generator, and the third power source is a drive motor.

8. The hybrid transmission device according to claim 1, characterized in that: The first clutch and the second clutch are dog clutches.

9. A vehicle, characterized in that: The vehicle comprises the hybrid transmission device according to any one of claims 1 to 8.

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