Hybrid power transmission framework and vehicle

Abstract

The utility model provides a hybrid power transmission framework and a vehicle, and belongs to the technical field of vehicles, the hybrid power transmission framework comprises an engine, a GM motor, a TM motor, a first planet row, a second planet row, an intermediate shaft, an input shaft and an output shaft which are coaxially arranged; one end of the intermediate shaft is clutched with the input shaft through a first clutch device, and the other end of the intermediate shaft is clutched with the output shaft through a fourth clutch device; the first planet row comprises a first sun gear, a first planet gear, a first planet carrier and a first gear ring; the GM motor is directly connected with the first planet carrier; the second planet row comprises a second sun gear, a second planet gear, a second planet carrier and a second gear ring; the second sun gear is connected with the first planet carrier; the second gear ring is engaged and disengaged with the first gear ring through a second engaging and disengaging device; and the second planet carrier is clutched with the intermediate shaft through a third clutch device. According to the utility model, large-torque power output can be provided for a hybrid power vehicle in a reverse gear mode, and the requirement of off-road vehicles for getting out of trouble under complex road conditions is met.

Description

Technical Field

[0001] The utility model belongs to the technical field of vehicles, and in particular relates to a hybrid power transmission architecture and a vehicle. Background Art

[0002] The existing hybrid module does not have an E-CVT reverse gear function and is usually a pure electric reverse gear. The reverse gear under this mode usually cannot provide continuous high-torque power output and cannot meet the off-road vehicle's needs to escape from difficult road conditions. Utility Model Content

[0003] The embodiments of the present invention provide a hybrid transmission architecture and a vehicle, aiming to solve the problem that the torque power output of a hybrid vehicle in reverse gear mode is insufficient, and that the hybrid vehicle cannot meet the needs of an off-road vehicle to escape from trouble in complex road conditions.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: providing a hybrid transmission architecture, comprising: a coaxially arranged engine, a GM motor, a TM motor, a first planetary gear, a second planetary gear, an intermediate shaft, an input shaft, an output shaft, a first clutch device, a second clutch device, a third clutch device, and a fourth clutch device;

[0005] The engine is directly connected to the input shaft; the first clutch device is arranged between the intermediate shaft and the input shaft; the fourth clutch device selectively clutches the intermediate shaft and the output shaft, or selectively clutches the TM motor and the output shaft;

[0006] The first planetary gear comprises a first sun gear, a first planetary gear, a first planetary carrier and a first ring gear, wherein the first sun gear is coaxially connected to the intermediate shaft; the GM motor is directly connected to the first planetary carrier;

[0007] The second planetary gear includes a second sun gear, a second planet gear, a second planet carrier and a second ring gear; the second sun gear is coaxially mounted on the intermediate shaft, and the second sun gear is connected to the first planet carrier; the second ring gear is coaxially connected to the output shaft; the second clutch device selectively clutches the second ring gear and the first ring gear, or selectively clutches the first ring gear and the intermediate shaft; the third clutch device clutches the second planet carrier and the intermediate shaft.

[0008] In combination with the first aspect, in one achievable manner, the fourth clutch device is disposed between the intermediate shaft and the output shaft; and the second clutch device is disposed between the second ring gear and the first ring gear.

[0009] In combination with the first aspect, in one achievable manner, the fourth clutch device is arranged between the TM motor and the output shaft, and the intermediate shaft is disconnected from the output shaft; the second clutch device is arranged between the second ring gear and the first ring gear.

[0010] In combination with the first aspect, in one feasible manner, the fourth clutch device is arranged between the TM motor and the output shaft, and the intermediate shaft is disconnected from the output shaft; the second clutch device is arranged between the first ring gear and the intermediate shaft; the second ring gear is connected to the first sun gear, and the first sun gear is coaxially mounted on the intermediate shaft.

[0011] In combination with the first aspect, in one feasible manner, a first hollow shaft is mounted on the intermediate shaft, and the axial ends of the first hollow shaft are respectively connected to the first planet carrier and the second sun gear; the first sun gear is coaxially mounted on the first hollow shaft.

[0012] In combination with the first aspect, in one achievable manner, the first planet carrier and the second sun gear are an integrated structure.

[0013] In combination with the first aspect, in one achievable manner, a second hollow shaft is hollowly sleeved outside the first hollow shaft, and two axial ends of the second hollow shaft are respectively connected to the first sun gear and the second ring gear.

[0014] In combination with the first aspect, in one achievable manner, the first planetary gear set is coaxially arranged on the outer side of the second planetary gear set, and the first sun gear is connected to the outer side of the second ring gear.

[0015] In combination with the first aspect, in one achievable manner, the second sun gear, the second planet gears, the first sun gear, and the first planet gears are arranged linearly from inside to outside.

[0016] Compared with the existing technology, the hybrid transmission architecture provided by the present invention has the following beneficial effects: through the cooperation of two rows of planetary gears and different clutch devices, it has multiple power modes such as engine direct drive, pure electric, ECVT (forward gear / reverse gear), and simple power switching; the output shaft end can be used with any forward gear transmission to achieve multi-mode and multi-gear power output; it can provide high-torque power output, which is suitable for off-road platforms with high torque escape requirements; and it can realize forward and reverse gear modes under ECVT mode.

[0017] In a second aspect, an embodiment of the present invention further provides a vehicle comprising the hybrid transmission architecture.

[0018] The vehicle provided by the embodiment of the present invention can not only output multiple working modes, but also can hybrid reverse gear, and can provide continuous high-torque power output. Therefore, its output end can be used with a transmission with any forward gear to achieve multi-mode and multi-gear power output, and is suitable for use on off-road platforms with escape needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic structural diagram of a hybrid transmission architecture provided by Example 1 of the present utility model;

[0020] Figure 2 A schematic structural diagram of a hybrid transmission architecture provided by Example 2 of the present utility model;

[0021] Figure 3 A schematic structural diagram of a hybrid transmission architecture provided by Example 3 of the present utility model;

[0022] Figure 4 A schematic structural diagram of a hybrid transmission architecture provided by Example 4 of the present utility model;

[0023] Description of reference numerals:

[0024] 1. Engine; 2. Input shaft; 3. GM motor; 4. Intermediate shaft; 5. First planetary gear set; 51. First planetary carrier; 52. First planetary gear; 53. First sun gear; 54. First ring gear; 6. Second planetary gear set; 61. Second sun gear; 62. Second ring gear; 63. Second planetary gear; 64. Second planetary carrier; 7. TM motor; 8. Output shaft; 9. First hollow shaft; 10. Second hollow shaft; C1. First clutch; C2. Second clutch; C3. Third clutch; C4. Fourth clutch. DETAILED DESCRIPTION

[0025] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In this application, terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship of quantity, priority or sequence between these entities or operations.

[0027] Example 1

[0028] See also Figure 1The hybrid transmission architecture includes a coaxially arranged engine 1, a GM motor 3, a TM motor 7, a first planetary gear 5, a second planetary gear 6, an intermediate shaft 4, an input shaft 2, and an output shaft 8; the engine 1 is directly connected to the input shaft 2, and the TM motor 7 is connected to the output shaft 8; one end of the intermediate shaft 4 is clutched to the input shaft 2 via a first clutch device C1, and the other end of the intermediate shaft 4 is clutched to the output shaft 8 via a fourth clutch device C4; the first planetary gear 5 includes a first sun gear 53, first planetary gears 52, a first planet carrier 51, and a first ring gear 54. The first sun gear 53 is coaxially connected to the intermediate shaft 4; the GM motor 3 is directly connected to the first planetary carrier 51; the second planetary row 6 includes a second sun gear 61, a second planetary gear 63, a second planetary carrier 64 and a second ring gear 62; the second sun gear 61 is coaxially mounted on the intermediate shaft 4, and the second sun gear 61 is connected to the first planetary carrier 51; the second ring gear 62 is coaxially connected to the output shaft 8, and the second ring gear 62 is clutched with the first ring gear 54 through the second clutch device C2; ​​the second planetary carrier 64 is clutched with the intermediate shaft 4 through the third clutch device C3.

[0029] Compared with the existing technology, the hybrid transmission architecture provided by the present invention has the following beneficial effects: through the cooperation of two rows of planetary gears and different clutch devices, it has multiple power modes such as engine 1 direct drive, pure electric, E-CVT (forward gear / reverse gear), and simple power switching; the output shaft 8 end can be used with any forward gear transmission to achieve multi-mode and multi-gear power output; it can provide high-torque power output, which is suitable for off-road platforms with high torque escape requirements; it can realize forward and reverse gear modes in E-CVT mode; this application adopts multiple clutch devices, and different functions can be achieved by adding or reducing a coupling or disconnection device.

[0030] The specific arrangement of the coaxially arranged engine 1, GM motor 3, TM motor 7, first planetary row 5, second planetary row 6, input shaft 2 and output shaft 8 in this application is as follows: the axis of the input shaft 2, the intermediate shaft 4 and the output shaft 8 are the same, the rotor of the engine 1 is directly connected to the input shaft 2, the rotor of the GM motor 3 is directly connected to the first planetary carrier 51, the first planetary row 5 and the second planetary row 6 are coaxially arranged on the intermediate shaft 4, and the rotor of the TM motor 7 is connected to the output shaft 8.

[0031] The term axial in this application refers to the direction along the axis of the input shaft 2, and radial refers to the direction perpendicular to the input shaft 2. In this application, the axes of the input shaft 2, the intermediate shaft 4 and the output shaft 8 coincide.

[0032] Since the present application adopts a coaxial arrangement, two rows of planetary gears and the two rows of planetary gears are connected to each other, the present application has a compact structure, can reduce the loss in the power transmission process, is conducive to high-torque power output, and is particularly suitable for off-road vehicles with high-torque escape requirements.

[0033] In the present application, each clutch device may be a clutch or a synchronizer with an engagement / disengagement function.

[0034] The terms in this application are explained as follows:

[0035] TM motor: TM motor is a type of electric motor commonly used in automobiles, mainly used in the drive system of electric vehicles or hybrid vehicles.

[0036] GM motors are general-purpose motors that can be used in vehicles as power sources or auxiliary systems, such as air conditioning, water pumps, and oil pumps. They can also be used in the drive systems of certain vehicle models. They are widely used in various types of vehicles, providing the necessary power and auxiliary functions.

[0037] TM motors and GM motors are widely used in automobiles, and both motors are important components of modern automotive electrification.

[0038] ECVT is an electronic continuously variable transmission specifically used in hybrid vehicles. It is called electronic continuously variable transmission technology or electronically controlled continuously variable transmission. ECVT is actually part of the hybrid system, not a traditional transmission. It achieves power output through the energy coupling of the engine and electric motor.

[0039] ICE stands for Internal Combustion Engine, which is an internal combustion engine that uses fuel combustion to generate high-temperature and high-pressure gas pressure to push the piston to generate work.

[0040] EV, the full name of which is Electric Vehicle, is a car that uses pure electric drive technology.

[0041] Example 2

[0042] See also Figure 3 Example 2 is a variation of Example 1. The difference between Example 2 and Example 1 lies in the following: a fourth clutch device C4 is positioned between the TM motor 7 and the output shaft 8. The TM motor 7 is clutched from the output shaft 8 via the fourth clutch device C4, while the intermediate shaft 4 is disconnected from the output shaft 8. This embodiment achieves multiple multi-gear operating modes by adjusting the position of the fourth clutch device C4.

[0043] Example 3

[0044] See also Figure 2Example 3 is a variation of Example 2. The differences between Example 3 and Example 2 are that the second clutch device C2 is disposed between the first ring gear 54 and the intermediate shaft 4, and the first ring gear 54 is clutched from the intermediate shaft 4 via the second clutch device C2. The second ring gear 62 is connected to the first sun gear 53, which is coaxially mounted on the intermediate shaft 4. This embodiment achieves multiple multi-gear operating modes by adjusting the position of the second clutch device C2.

[0045] In some embodiments, a first hollow shaft 9 is hollowly mounted on the intermediate shaft 4. The first hollow shaft 9 has its axial ends connected to the first planet carrier 51 and the second sun gear 61, respectively. The first sun gear 53 is coaxially mounted on the first hollow shaft 9. This compact structure reduces power transmission losses and facilitates high-torque power output.

[0046] In some embodiments, the first planet carrier 51 and the second sun gear 61 are integrally formed. This compact structure can reduce the overall size, reduce power transmission losses, and reduce the space occupied by the entire structure in the vehicle layout. It can also improve the overall strength of the integral structure of the first planet carrier 51 and the second sun gear 61.

[0047] In some embodiments, a second hollow shaft 10 is hollowly sleeved outside the first hollow shaft 9, and the axial ends of the second hollow shaft 10 are respectively connected to the first sun gear 53 and the second ring gear 62. Similarly, this structure is compact, can reduce the loss in the power transmission process, and is conducive to high torque power output.

[0048] Example 4

[0049] See also Figure 4 Example 4 is a variation of the structure of Example 2. The difference between Example 4 and Example 2 is that the first planetary row 5 is coaxially arranged on the outside of the second planetary row 6, and the first sun gear 53 is connected to the outside of the second ring gear 62.

[0050] The first sun gear 53 can be integrated with the second ring gear 62. Similarly, this structure is compact, can reduce the external volume, can reduce the loss during the power transmission process, and can also reduce the space occupied by the entire structure in the vehicle layout.

[0051] In some embodiments, the second sun gear 61, the second planetary gears 63, the first sun gear 53, and the first planetary gears 52 are arranged linearly from the inside out. Similarly, this compact structure can reduce the overall volume, reduce power transmission losses, and reduce the space occupied by the entire structure in the vehicle layout.

[0052] Example 5

[0053] The difference between Example 5 and Example 1 is that the first planetary gear set 5 and the second planetary gear set 6 are both double planetary gear planetary gear sets, and they also realize the original architecture of the engine 1 direct drive, pure electric two-speed (forward gear / reverse gear), ECVT (forward gear / reverse gear), extended range and other working modes, and each working mode is the same as that of Example 1.

[0054] It is noted that no specific diagram is given in Example 5. Figure 1 That's it.

[0055] This application can realize pure electric mode, engine 1 direct drive mode, hybrid mode and ECVT mode. ECVT mode can be realized in both forward and reverse gears. The power transmission path is as follows:

[0056] (1) Pure electric mode:

[0057] In pure electric mode, there are three gears, which can be GM motor 3 direct drive, TM motor 7 direct drive and dual motor simultaneous drive.

[0058] EV1: At this time, only TM motor 7 is working, C1, C2, C3, and C4 are all in the disconnected state. At this time, the power is directly input to the output shaft 8 through TM motor 7. Figure 1 .

[0059] EV2: At this time, only GM motor 3 is working, C1 and C4 are disconnected, C2 and C3 are connected, and the two planetary gears are in a fixed state. The power is output to the output shaft 8 through the GM motor 3 and the planetary gear. Figure 2 、 Figure 3 and Figure 4 .

[0060] EV3: At this time, GM motor 3 and TM motor 7 are working, C1 and C3 are disconnected, C2 and C4 are connected, and the two planetary gears are in a fixed state. The power is output to the output shaft 8 through the planetary gear of GM motor 3, and the power of TM motor 7 is directly output to the output shaft 8. Figure 1 、 Figure 2 、 Figure 3 and Figure 4 .

[0061] Engine 1 direct drive mode:

[0062] In this mode, only engine 1 is working, C1 and C4 are connected, C2 and C3 are disconnected, and the power of engine 1 is input to output shaft 8 through input shaft 2, C1, intermediate shaft 4 and C4. Figure 1 .

[0063] Hybrid mode:

[0064] Hybrid Mode 1: In this mode, only the engine 1 and the TM motor 7 are working, C1 and C4 are connected, and C2 and C3 are disconnected. At this time, the power of the engine 1 is input to the output shaft 8 through C1 and C4, and the power of the TM motor 7 is directly input to the output shaft 8. Figure 1 .

[0065] Hybrid mode 2: In this mode, only engine 1 and GM motor 3 are working, C1, C3, and C2 are connected, and C4 is disconnected. At this time, the two planetary gears are in a fixed state. At this time, the power of engine 1 is input to output shaft 8 through C1 and the planetary gear, and the power of GM motor 3 is output to output shaft 8 through the planetary gear. Figures 2 to 4 .

[0066] Hybrid Mode 3: In this mode, the engine 1, GM motor 3 and TM motor 7 are working, C1, C3 and C2 are connected, C4 is disconnected, and the two planetary gears are in a fixed state. The power of the engine 1 is input to the output shaft 8 through the planetary gear through C1, the power of the GM motor 3 is output to the output shaft 8 through the planetary gear, and the power of the TM motor 7 is directly input to the output shaft 8. Figure 1 .

[0067] The hybrid mode can provide large torque output to meet the needs of off-road vehicles to escape from difficult road conditions.

[0068] ECVT Mode:

[0069] This architecture can realize ECVT mode. This mode can also realize ECVT reverse gear.

[0070] ECVT forward gear; at this time, the engine 1 and GM motor 3 are running, C1 and C3 are connected, C2 and C4 are disconnected, and the second planetary carrier 64 and the first sun gear 53 are connected to the input shaft 2 of the engine 1. At this time, part of the power of the engine 1 is transmitted to the second sun gear 61 through the first sun gear 53 and the first planetary carrier 51, and part of the power is directly transmitted to the second planetary carrier 64 through C3; the GM motor 3 adjusts the speed of the first planetary carrier 51, and at this time, the two powers are simultaneously transmitted to the output shaft 8 through the second ring gear 62. Figure 3 .

[0071] ECVT reverse gear: At this time, the engine 1 and GM motor 3 are running at the same time, C1 and C2 are connected, and C3 and C4 are disconnected. At this time, the first planetary gear 5 and the second planetary gear 6 share a ring gear. At this time, the power of the engine 1 is transmitted to the output shaft 8 through the first sun gear 53 and then through the first planetary carrier 51. The GM motor 3 can adjust the speed of the first planetary carrier 51. The engine 1 and GM motor 3 transmit power to the output shaft 8 at the same time. Figure 3 .

[0072] The working modes of each embodiment of this application are shown in Table 1 below.

[0073] Table 1

[0074] model ICE GM TM C1 C2 C3 C4 Remark EV1 √ TM motor direct drive EV2 √ √ √ GM motor direct drive EV3 √ √ √ √ Dual motor drive ECVT reverse gear √ √ √ √ ECVT ECVT Moving Forward √ √ √ √ ECVT Hybrid 1 √ √ √ √ ICE+TM Hybrid 2 √ √ √ √ √ ICE+GM Hybrid 3 √ √ √ √ √ √ ICE+dual motor ICE √ √ √ ICE direct drive

[0075] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described or recorded in detail in a certain embodiment, reference can be made to the relevant description of other embodiments.

[0076] Based on the same inventive concept, an embodiment of the present application also provides a vehicle, comprising the hybrid transmission architecture.

[0077] The vehicle provided by the embodiment of the present invention can not only output multiple working modes, but also can hybrid reverse gear, and can provide continuous high-torque power output. Therefore, its output end can be used with a transmission with any forward gear to achieve multi-mode and multi-gear power output, and is suitable for use on off-road platforms with escape needs.

[0078] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hybrid transmission architecture, characterized in that: include: A coaxially arranged engine (1), a GM motor (3), a TM motor (7), a first planetary gear (5), a second planetary gear (6), an intermediate shaft (4), an input shaft (2), an output shaft (8), a first clutch device (C1), a second clutch device (C2), a third clutch device (C3), and a fourth clutch device (C4); The engine (1) is directly connected to the input shaft (2); the first clutch device (C1) is arranged between the intermediate shaft (4) and the input shaft (2); the fourth clutch device (C4) selectively clutches the intermediate shaft (4) and the output shaft (8), or selectively clutches the TM motor (7) and the output shaft (8); The first planetary gear (5) comprises a first sun gear (53), a first planetary gear (52), a first planetary carrier (51) and a first ring gear (54); the first sun gear (53) is coaxially connected to the intermediate shaft (4); the GM motor (3) is directly connected to the first planetary carrier (51); The second planetary gear (6) comprises a second sun gear (61), a second planetary gear (63), a second planetary carrier (64) and a second ring gear (62); the second sun gear (61) is coaxially mounted on the intermediate shaft (4), and the second sun gear (61) is connected to the first planetary carrier (51); the second ring gear (62) is coaxially connected to the output shaft (8); the second clutch device (C2) selectively clutches the second ring gear (62) and the first ring gear (54), or selectively clutches the first ring gear (54) and the intermediate shaft (4); the third clutch device (C3) clutches the second planetary carrier (64) and the intermediate shaft (4).

2. The hybrid transmission architecture of claim 1, wherein: The fourth clutch device (C4) is arranged between the intermediate shaft (4) and the output shaft (8); and the second clutch device (C2) is arranged between the second ring gear (62) and the first ring gear (54).

3. The hybrid transmission architecture of claim 1, wherein: The fourth clutch device (C4) is arranged between the TM motor (7) and the output shaft (8), and the intermediate shaft (4) is disconnected from the output shaft (8); the second clutch device (C2) is arranged between the second ring gear (62) and the first ring gear (54).

4. The hybrid transmission architecture of claim 1, wherein: The fourth clutch device (C4) is arranged between the TM motor (7) and the output shaft (8), and the intermediate shaft (4) is disconnected from the output shaft (8); the second clutch device (C2) is arranged between the first ring gear (54) and the intermediate shaft (4); the second ring gear (62) is connected to the first sun gear (53), and the first sun gear (53) is coaxially sleeved on the intermediate shaft (4).

5. The hybrid transmission architecture of claim 4, wherein: A first hollow shaft (9) is sleeved on the intermediate shaft (4), and the axial ends of the first hollow shaft (9) are respectively connected to the first planet carrier (51) and the second sun gear (61); the first sun gear (53) is coaxially sleeved on the first hollow shaft (9).

6. The hybrid transmission architecture of claim 5, wherein: The first planet carrier (51) and the second sun gear (61) are an integrated structure.

7. The hybrid transmission architecture of claim 5, wherein: A second hollow shaft (10) is hollowly sleeved outside the first hollow shaft (9), and the axial ends of the second hollow shaft (10) are respectively connected to the first sun gear (53) and the second gear ring (62).

8. The hybrid transmission architecture of claim 4, wherein: The first planetary row (5) is coaxially arranged on the outside of the second planetary row (6), and the first sun gear (53) is connected to the outside of the second ring gear (62).

9. The hybrid transmission architecture of claim 8, wherein: The second sun gear (61), the second planet gear (63), the first sun gear (53) and the first planet gear (52) are arranged linearly from inside to outside.

10. A vehicle, characterized in that: Comprising a hybrid transmission architecture as claimed in any one of claims 1 to 9.

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