CN216580096U - Power transmission system and vehicle with same - Google Patents
Power transmission system and vehicle with same Download PDFInfo
- Publication number
- CN216580096U CN216580096U CN202122635872.3U CN202122635872U CN216580096U CN 216580096 U CN216580096 U CN 216580096U CN 202122635872 U CN202122635872 U CN 202122635872U CN 216580096 U CN216580096 U CN 216580096U
- Authority
- CN
- China
- Prior art keywords
- shaft
- gear
- input
- output
- motor generator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Structure Of Transmissions (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The utility model discloses a power transmission system and a vehicle with the same, wherein the power transmission system comprises: a first motor generator and a second motor generator; the first input shaft is in power connection with the first motor generator; the second input shaft is in power connection with the second motor generator; the first transfer mechanism is selectively jointed with the first input shaft and linked with the second input shaft; the second transfer mechanism is linked with the first input shaft; the intermediate shaft is linked with the first transfer mechanism; the output shaft can be selectively linked with the intermediate shaft and/or the second transfer mechanism and/or the first input shaft respectively; wherein the first motor generator is disposed offset from the second motor generator. The power transmission system realizes respective gear shifting without power interruption under various working conditions through three different transmission paths, and has compact structure and reasonable layout.
Description
Technical Field
The utility model relates to the technical field of automobile transmission, in particular to a power transmission system and a vehicle with the same.
Background
In the related art, with the development of pure electric and hybrid electric technologies, the application field of the electric technology is gradually increased, and although the electric technology applied to a car is mature, the load of the car is light, and the gears applied to a transmission system of the car cannot be adapted to heavy-duty vehicles, in particular, the pure electric and hybrid power transmission systems applied to commercial vehicles have a power interruption mode during gear shifting, and the running performance and safety of the vehicle are seriously affected by the power interruption occurring in the heavy-duty vehicles.
For some power transmission systems, a structural form of utilizing a hollow sleeve shaft exists, the manufacturing difficulty of the hollow sleeve shaft is high, the requirements on materials and processes are high, and meanwhile, the difficulty of assembling and maintaining the power transmission system is increased, so that the manufacturing and maintaining cost of the power transmission system is increased.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving at least one of the problems of the prior art. To this end, it is an object of the present invention to provide a power transmission system. The power transmission system realizes respective gear shifting without power interruption under various working conditions through two different transmission paths, and has compact structure and reasonable layout.
The utility model also provides a vehicle with the power transmission system.
The power transmission system according to the present invention includes: a first motor generator and a second motor generator; a first input shaft in power connection with the first motor generator; a second input shaft in power connection with the second motor generator; a first rotation-in mechanism selectively engageable with the first input shaft and in linkage with the second input shaft; the second transfer mechanism is linked with the first input shaft; the intermediate shaft is linked with the first transfer mechanism; the output shaft is selectively linked with the intermediate shaft and/or the second transfer mechanism and/or the first input shaft respectively; wherein the first motor generator is disposed offset from the second motor generator.
According to the power transmission system, the first motor generator and the second motor generator are coupled and offset through the primary reduction gear, so that the input torque requirements of the first motor generator and the second motor generator are greatly reduced, the space at the periphery of the first input shaft is fully utilized, the radial space in the power transmission system is utilized to realize the arrangement of the first input shaft and the second input shaft, compared with the mode that the first motor generator and the second motor generator are coaxially arranged in a hollow sleeve shaft mode, the cost of the motor generator is greatly reduced, the difficulty of maintenance in the installation of the power transmission system is further reduced, and the practicability of the power transmission system is improved.
According to some embodiments of the utility model, the first motor generator has a first motor generator output shaft with a first motor generator output shaft gear disposed thereon, and the first input shaft has a first input shaft input gear disposed thereon that meshes with the first motor generator output shaft gear.
According to some embodiments of the utility model, the first rotation-transmitting mechanism is configured as a first duplicate gear sleeved on the outer periphery of the first input shaft; the first duplicate gear is provided with a first duplicate input gear meshed with the second input shaft gear; an intermediate shaft input gear is arranged on the intermediate shaft, and a first duplicate output gear meshed with the intermediate shaft input gear is arranged on the first duplicate gear.
According to some embodiments of the utility model, the power transmission system further comprises: a first shifting device disposed on the first input shaft and selectively engaging the first input shaft with the first duplicate gear.
According to some embodiments of the utility model, the second turning mechanism comprises: one or more second intermediate rotating shafts, a second intermediate rotating input gear and a second intermediate rotating output gear, wherein the second intermediate rotating shafts are arranged in a parallel offset mode with the intermediate shaft in the circumferential direction of the first input shaft, and the second intermediate rotating input gear and the second intermediate rotating output gear are fixedly arranged on the second intermediate rotating shafts; the first input shaft is provided with a first input shaft output gear, and the second transfer input gear is meshed with the first input shaft output gear; and a first output shaft input gear which can be selectively connected with the output shaft is sleeved on the output shaft, and the first output shaft input gear is meshed with the second transfer output gear.
According to some embodiments of the utility model, a second gear shifting device is provided on the output shaft, the second gear shifting device selectively engaging the output shaft with the first input shaft or the output shaft with the output shaft first input gear.
According to some embodiments of the utility model, a plurality of countershaft output gears are disposed on the countershaft, and a plurality of output shaft second input gears are nested on the output shaft in one-to-one meshing engagement with the countershaft output gears, the output shaft being selectively engageable with one of the output shaft second input gears.
According to some embodiments of the utility model, the second transfer output gear and the output shaft first input gear are configured in a one-to-one correspondence of a plurality of pairs; the output gears of the intermediate shafts and the second input gears of the output shafts are constructed into a plurality of pairs in one-to-one correspondence.
According to some embodiments of the utility model, the power transmission system further comprises: an engine having an engine shaft connected to the first input shaft.
A vehicle according to another aspect of the embodiment of the utility model is briefly described below.
The vehicle according to the present invention employs the power transmission system of the above embodiment, so that the vehicle can be a pure electric or hybrid heavy-duty vehicle having a plurality of gears to be suitable for different loads, effectively reducing energy consumption. Meanwhile, when the vehicle is shifted, power interruption can be avoided, power switching is smoother, and the comfort and the power performance of the vehicle are good. And the space occupies for a short time, the structure is compact, the assembly and the maintenance are simple, and the processing difficulty of parts is low.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic representation of a powertrain according to an embodiment of the present invention.
FIG. 2 is a schematic representation of a powertrain system including a rangebox according to an embodiment of the present invention.
FIG. 3 is a schematic representation of a single countershaft powertrain according to one embodiment of the present invention.
FIG. 4 is a schematic representation of a single countershaft powertrain system including a rangebox according to an embodiment of the present invention.
FIG. 5 is a schematic representation of a single countershaft powertrain according to another exemplary embodiment of the present invention.
FIG. 6 is a schematic representation of a single countershaft powertrain system including a rangebox according to another exemplary embodiment of the present invention;
FIG. 7 is a schematic representation of a powertrain having six gears in accordance with an exemplary embodiment of the present invention.
FIG. 8 is a schematic representation of a powertrain having a six-speed, three-power source according to an embodiment of the present invention
FIG. 9 is a schematic representation of a powertrain having a six-speed three-source belt sub-section in accordance with an exemplary embodiment of the present invention.
FIG. 10 is a schematic representation of a powertrain having an eight speed, three power source, according to an exemplary embodiment of the present invention.
FIG. 11 is a schematic illustration of a powertrain having an eight speed three power source belt sub-section in accordance with an exemplary embodiment of the present invention.
Reference numerals:
an engine 1, an engine shaft 101, a first motor generator 2, a first motor generator output shaft 201, a first motor generator output shaft gear 202; a second motor generator 3; a clutch 4;
a first input shaft 10; a first input shaft input gear 12, a first input shaft output gear 11;
a second input shaft 20; a second input shaft gear 21;
an intermediate shaft 30; an intermediate shaft input gear 31; first countershaft output gear 32 a; a second countershaft output gear 32 b; a third countershaft output gear 32 c; the fourth counter output gear 32d is,
an output shaft 40; an output shaft first input gear 41a, an output shaft first input gear 41b, an output shaft first input gear 41 c; first output shaft second input gear 42 a; second output shaft second input gear 42 b; third output shaft second input gear 42 c; fourth output shaft second input gear 42 d;
a second central rotating shaft 10 a; a second intermediate input gear 10 b; a second intermediate output gear 10 c; a second relay output gear 10 d; a second relay output gear 10 e;
a first double gear 20 a; a first duplicate input gear 20 b; a first duplicate output gear 20 c;
the first shifting device k 1; the second shifting device k 2; the third shifting device k 3; the fourth shifting device k 4; the fifth shifting device k 5;
the third input shaft 40 a; a third input shaft output gear 61; a subtransmission shift mechanism k 6;
an auxiliary transmission intermediate shaft 50; an auxiliary change countershaft input gear 50 a; an auxiliary transmission intermediate shaft output gear 50 b;
a range output shaft 60; the range output shaft inputs gear 62.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention and are not to be construed as limiting the present invention.
A power transmission system according to an embodiment of the utility model is described below with reference to fig. 1 to 11, including: a first motor generator 2 and a second motor generator 3, wherein the first input shaft 10 is in power connection with the first motor generator 2, and the second input shaft 20 is in power connection with the second motor generator 3; the first transfer mechanism is selectively engaged with the first input shaft 10 and is linked with the second input shaft 20, the second transfer mechanism is linked with the first input shaft 10, the intermediate shaft 30 is linked with the first transfer mechanism, and the output shaft 40 is selectively linked with the intermediate shaft 30 and/or the second transfer mechanism and/or the first input shaft 10, respectively. In the related art, with the development of a pure electric and hybrid electric technology, the application field of an electric technology is gradually increased, although the hybrid electric and oil technology applied to a car is mature, the load of the car is light, and the gears applied to a transmission system of the car cannot be adapted to heavy-duty vehicles, in particular, the pure electric and hybrid power transmission system applied to commercial vehicles has a power interruption mode during gear shifting, and the running performance and safety of the vehicle are seriously affected by the power interruption in the heavy-duty vehicles.
For some power transmission systems, a structural form of utilizing a hollow sleeve shaft exists, the manufacturing difficulty of the hollow sleeve shaft is high, the requirements on materials and processes are high, and meanwhile, the difficulty of assembling and maintaining the power transmission system is increased, so that the manufacturing and maintaining cost of the power transmission system is increased.
In the application, the first motor generator and the second motor generator are arranged to realize pure electric input of the power transmission system, the first motor generator and the second motor generator are arranged in a one-level speed reduction and offset mode, the torque requirements of the first motor generator and the second motor generator are reduced, the cost of the motor generators is greatly reduced, the space on the periphery of the first input shaft is fully utilized, the radial space in the power transmission system is utilized to realize the arrangement of the first input shaft and the second input shaft, compared with a mode that the first input shaft and the second input shaft are constructed into hollow sleeve shafts, the processing cost is greatly reduced, the difficulty of maintenance in the installation of the power transmission system is further reduced, and the practicability of the power transmission system is improved.
Further, in this application, there are three mutually non-interfering transmission paths in the driveline.
The first of them is the first motor generator 2 and/or the second motor generator 3 as the power source, the first input shaft 10 is linked with the second relay mechanism, and the output shaft 40 is selectively linked with the second relay mechanism, so that the power of the engine 1 and/or the first motor generator 2 and/or the second motor generator 3 can be output through the first input shaft 10, the second relay mechanism and the output shaft 40. The second one is that the first motor generator 2 and/or the second motor generator 3 are used as power sources, the second input shaft 20 is linked with the first transfer mechanism and/or the first input shaft, the first transfer mechanism is linked with the intermediate shaft 30, and the output shaft 40 is selectively linked with the intermediate shaft 30 to realize power output.
The third one is the first motor generator 2 and/or the second motor generator 3 as the power source, and the output shaft 40 is directly linked with the first input shaft 10 to realize the output of power.
In the three power transmission paths, each transmission path may correspond to a plurality of gears, the gears in each transmission path are alternately increased, for example, the first transmission path has two gears of the power transmission system, the second transmission path has one gear and three gears of the power transmission system, and the third transmission path has four gears of the power transmission system, when two adjacent gears are switched, the different power transmission paths do not interfere with each other, and when the gears are switched, the transmission paths of the three powers do not interfere with each other.
In an embodiment of the present invention, as shown in fig. 1, in the process of switching the first motor generator 2 from the first gear to the second gear, the power of the first motor generator 2 needs to be switched between the intermediate shaft 30 and the second relay mechanism by the output shaft 40, and the second motor generator 3 can be used to output power through the transmission paths of the second input shaft 20, the first relay mechanism and the intermediate shaft 30 in advance, so that when the output shaft 40 is disconnected from the second relay mechanism, the power between the intermediate shaft 30 and the output shaft 40 is not interrupted, and the power interruption of the output shaft 40 is avoided in the process of shifting, thereby improving the fluency of the power transmission system and the comfort of power transmission, and reducing the feeling of suspension during driving.
Similarly, in the process of switching the first motor generator 2 from the second gear to the third gear, the first motor generator 2 needs to be switched from the output shaft 40 to the intermediate shaft 30 from the second transfer mechanism, the second motor generator 3 can be used to output power through the first transfer mechanism, the intermediate shaft 30 and the output shaft 40 to enter the third gear in advance, the loss of power interruption can be reduced in the process of disconnecting the second transfer mechanism from the output shaft 40 and switching the power of the first motor generator 2 to the intermediate shaft 30 and the output shaft 40 in a linkage manner, the power interruption during gear switching can be compensated, the power interruption of the output shaft 40 can be avoided, the fluency of the power transmission system and the comfort of power transmission can be improved, and the jerk feeling during driving can be reduced.
Similarly, in the process of switching the first motor generator 2 from the third gear to the fourth gear, the power of the first motor generator 2 needs to be disconnected from the output shaft 40 through the intermediate shaft 30 and then switched to be directly output from the first input shaft 10 to the output shaft 40, and the second motor generator 3 can be used to output power while maintaining the third gear through the first intermediate rotation mechanism, the intermediate shaft 30 and the output shaft 40, so that the loss of power interruption can be reduced in the process of disconnecting the intermediate shaft 30 from the output shaft 40 and directly switching the power of the first motor generator 2 to the first input shaft 10 and the output shaft 40 in a linkage manner, the power interruption during shifting can be compensated, the power interruption of the output shaft 40 can be avoided, the fluency of the power transmission system and the comfort of power transmission can be improved, and the jerk during driving can be reduced. Further, a first transfer mechanism is selectively engageable with the first input shaft 10 to effect a power connection between the first input shaft 10 and the second input shaft 20, adapted to effect maximum torque output when the driveline is under-powered.
According to the power transmission system, the first transfer mechanism, the second transfer mechanism and the intermediate shaft 30 are arranged, so that pure electric and hybrid multiple different working conditions of two power sources can be realized, three power transmission paths are constructed in the power transmission system, and in the process of shifting the power transmission system, the power of the power transmission system can be uninterrupted in the shifting process by switching among the three power transmission paths, so that the smoothness of the power transmission system is improved, and the brunt feeling in the driving process is reduced.
According to some embodiments of the present invention, the first motor generator 2 has a first motor generator output shaft 201, a first motor generator output shaft gear 202 is provided on the first motor generator output shaft 201, a first input shaft input gear 12 engaged with the first motor generator output shaft gear 202 is provided on the first input shaft 10, and a first-stage speed reduction can be realized between the first motor generator output shaft gear 202 and the first input shaft input gear 12, so as to meet the offset position arrangement requirement and the speed reduction requirement between the first motor generator 2 and the first input shaft 2, and fully utilize the space in the radial direction of the power transmission system.
According to some embodiments of the present invention, as shown in fig. 1, the first rotation-in-middle mechanism is configured as a first duplicate gear 20a sleeved on the outer periphery of the first input shaft 10, wherein the second input shaft 20 is provided with a second input shaft gear 21. The first double gear 20a is provided with a first double input gear 20b that meshes with the second input shaft gear 21. The intermediate shaft 30 is provided with an intermediate shaft input gear 31, the first duplicate gear 20a of the first intermediate rotation mechanism is provided with a first duplicate output gear 20c, and the first duplicate output gear 20c is meshed with the intermediate shaft input gear 31, so that the intermediate shaft 30 is linked with the first intermediate rotation mechanism.
The first intermediate rotation mechanism is constructed as a first duplicate gear 20a, and is provided with a first duplicate input gear 20b and a first duplicate output gear 20c, so that the second input shaft 20 and the intermediate shaft 30 can be linked; the first input shaft 10 is sleeved with the first duplicate gear 20a, so that mutual interference between the first duplicate gear 20a and the first input shaft 10 can be avoided, the occupied space is small, the layout is more reasonable, and the size of a power transmission system is reduced.
According to some embodiments of the present invention, as shown in fig. 1, a first shifting device k1 is further provided in the powertrain, and a first shifting device k1 is provided to the first input shaft 10 to selectively engage the first input shaft 10 with the first duplicate gear 20 a.
When the first input shaft 10 is engaged with the first duplicate gear 20a, the power coupling between the first input shaft 10 and the second input shaft 20 is realized, and the first, second, and third transmission paths of the power transmission system can be respectively realized, that is, the power transmission of the power transmission system in the first gear, the second gear, the third gear, and the fourth gear is realized.
According to some embodiments of the present invention, as shown in fig. 1, the second transfer mechanism is configured as one or more second transfer shafts 10a, a second transfer input gear 10b and a second transfer output gear 10c, the second transfer shafts 10a are arranged parallel to the intermediate shaft 30 and offset in the axial direction of the first input shaft 10, the second transfer input gear 10b and the second transfer output gear 10c are fixedly arranged on the second transfer shafts 10a, the first input shaft 10 is provided with a first input shaft output gear 11, the second transfer input gear 10b is engaged with the first input shaft output gear 11, the output shaft 40 is idly sleeved on the output shaft 40 and is an output shaft first input gear 41a selectively linked with the output shaft 40, and the output shaft first input gear 41a is engaged with the second transfer output gear 10 c.
Configuring the second transfer mechanism as one or more second transfer shafts 10a, provided with a second transfer input gear 10b and a second transfer output gear 10c, capable of transmitting the power of the first input shaft 10 to the output shaft 40, while the output shaft first input gear 41a is selectively engaged with the output shaft 40 to achieve engagement control of the first transmission path; the second middle rotating shaft 10a and the intermediate shaft 30 are arranged in a parallel offset mode, mutual interference between the second middle rotating shaft 10a and the intermediate shaft 30 can be avoided, a complex sleeve shaft structure is avoided, the layout is more reasonable, the reliability of a transmission system is improved, and the production and maintenance cost is reduced. According to some embodiments of the present invention, as shown in fig. 7, the second relay output gear and the first input gear of the output shaft are configured in a plurality of pairs in one-to-one correspondence. The second intermediate rotating shaft 10a is provided with a second intermediate output gear 10c and a second intermediate output gear 10d, and the output shaft 70 is provided with a first output shaft input gear 41a and a first output shaft input gear 41b which are correspondingly meshed, so that the number of gears of the power transmission system is further increased, and the power transmission system can realize 6-gear transmission.
According to some embodiments of the present invention, as shown in fig. 1, a second gear shifting device k2 is provided on the output shaft 40, and the second gear shifting device k2 selectively engages the output shaft 40 with the first input shaft 10 or the output shaft first input gear 41a with the output shaft 40.
When the second gear shift device k2 engages the output shaft 40 with the first input shaft 10, it is possible to realize that the first motor generator 2 directly drives or links with the second motor generator 3 independently in the fourth gear. The second gear shift device k2 engaging the output shaft first input gear 41a with the output shaft 40 can realize the first transmission path to realize the second gear transmission of the power transmission system, and the first motor generator 2 can be directly driven or linked with the second motor generator 3 independently in the second gear. According to some embodiments of the present invention, as shown in fig. 1, the countershaft 30 is provided with a plurality of countershaft output gears 32, which may be a first countershaft output gear 32a and a second countershaft output gear 32 b; a plurality of output shaft second input gears meshed with the output gears of the intermediate shaft one by one are sleeved on the output shaft 40, namely a first output shaft second input gear 42a and a second output shaft second input gear 42b, and the output shaft 40 can be selectively meshed with one of the first output shaft second input gear 42a or the second output shaft second input gear 42 b. Providing a plurality of countershaft output gears on the countershaft 30 and a plurality of output shaft second input gears on the output shaft 40 enriches the ratio of transmission between the countershaft 30 and the output shaft 40.
In the embodiment as shown in fig. 7, a third shifting device k3 is also provided, which third shifting device k3 can engage one of the output shaft first input gears 41b with the output shaft 40 and one of the first output shaft second input gears 42a with the output shaft 40.
According to one embodiment of the present invention, as shown in fig. 1, the powertrain further includes a third shifter k3 provided to the output shaft 40 and selectively engaging one of the plurality of output shaft second input gears with the output shaft 40, and a third shifter k 3.
The third shifting device k3 is used to change the engagement of the second input gear of the different output shafts with the output shaft 40, so that the system can be shifted between the countershafts 30 and the output shaft 40 in different gears.
In the embodiment as shown in fig. 7, a fourth shifting device k4 is also provided, which can engage one of the second output shaft second input gear 42b or the second output shaft second input gear 42c with the output shaft 40 by a fourth shifting device k 4.
According to one embodiment of the present invention, as shown in fig. 1, the intermediate shafts 30 are configured as one or more, each of the intermediate shafts 30 is linked with the first relay mechanism, and each of the intermediate shafts 30 is provided with a plurality of intermediate shaft output gears.
By arranging the plurality of intermediate shafts 30, the load of the power transmitted by the intermediate shafts 30 can be increased, the application range of the power transmission system is increased, and the power transmission system can be suitable for heavy-duty vehicles.
The vehicle according to the present invention is briefly described below.
The vehicle provided with the power transmission system in any one of the above embodiments can be a pure electric or hybrid heavy-duty vehicle, and the vehicle has multiple gears to adapt to different loads, so that the energy consumption is effectively reduced. Meanwhile, when the vehicle is shifted, power interruption can be avoided, power switching is smoother, and the comfort and the power performance of the vehicle are good. And the space occupies for a short time, the structure is compact, the assembly and the maintenance are simple, and the processing difficulty of parts is low.
According to the embodiment of the present invention, as shown in fig. 1 to 11, the first motor generator 2 and the second motor generator 3 are respectively arranged offset from the output shaft 40 through the first reduction gear mechanism, so that the torque requirements of the first motor generator 2 and the second motor generator 3 can be reduced, the oil seal arrangement of the first motor generator 2 and the second motor generator 3 can be simplified, the oil seal arrangement of the first motor generator 2, the second motor generator 3 and the engine 1 can be simpler, the lubricating sealing effect is better, the engine 1 can be arranged coaxially with the first input shaft 10, and the first motor generator 2 can be linked with the first input shaft 10 through the first reduction gear mechanism. According to an embodiment of the present invention, as shown in fig. 3, a structure of one intermediate shaft 30 may be adopted, the second intermediate shaft 10a of the second intermediate mechanism is disposed parallel to and non-coaxially with the intermediate shaft 30 on the other side in the circumferential direction of the first input shaft 10 and the output shaft 40, the second intermediate input gear 10b and the second intermediate output gear 10c are fixedly disposed on the second intermediate shaft 10a and respectively engaged with the first input shaft output gear 11 and the output shaft first input gear 41a, and the first input shaft 10 is linked with the second intermediate mechanism. The second transfer mechanism is independent of the intermediate shaft 30 and is not interfered with each other, so that the production and manufacturing process of the shaft tooth mechanism of the transmission system can be simplified, and the cost of the system is reduced. The transmission system with the single-intermediate-shaft structure is simplified in structure, the bearing capacity of the transmission system is weaker than that of a power transmission system with a multi-intermediate-shaft structure, and the transmission system is suitable for light vehicles with smaller traction requirements. According to an embodiment of the present invention, as shown in fig. 5, on the basis of the embodiment of the power transmission system based on the single-countershaft structure of fig. 3, the second input shaft gear 21 connected with the second motor generator 3 is directly meshed with the countershaft first input gear 31, and the assembly of the first duplicate input gear 20b is eliminated, so that the transmission path of the second motor generator 3 is further simplified, and the cost performance of the transmission system is improved. According to three other embodiments of the present invention, the power transmission system further includes a sub-transmission, as shown in fig. 2, 4 and 6, and the output shaft 40 is linked with the sub-transmission based on the power transmission system of the structure shown in fig. 1, 3 and 5. The sub-transmission has a third input shaft 40a, a sub-transmission output shaft 60 and a sub-transmission intermediate shaft 50, the third input shaft 40a is connected with the output shaft 40, the third input shaft 40a is provided with a third input shaft output gear 61, the sub-transmission intermediate shaft 50 is provided with a sub-transmission intermediate shaft input gear 50a, the sub-transmission intermediate shaft input gear 50a is meshed with the third input shaft output gear 61, the sub-transmission intermediate shaft 50 is provided with a sub-transmission intermediate shaft output gear 50b, the sub-transmission output shaft 60 is provided with a sub-transmission output shaft input gear 62 meshed with the sub-transmission intermediate shaft output gear 50b in an empty sleeve manner, the sub-transmission is provided with a sub-transmission gear shift mechanism k6, and the sub-transmission gear shift mechanism k6 selectively connects the third input shaft 40a with the sub-transmission output shaft 60 or connects the sub-transmission output shaft 60 with the sub-transmission output shaft input gear 62. Through setting up auxiliary transmission, can carry out the twice to the fender position of main transmission case and enlarge, further richened power transmission system's fender position, can be adapted to the higher heavy vehicle of load demand.
As shown in fig. 8 to 11, the power transmission system according to the present invention further includes an engine 1, an engine shaft of the engine 1 is in power connection with the first input 10, three or four intermediate shaft output gears are disposed on an intermediate shaft 30 of the power transmission system, a first intermediate shaft output gear 32a, a second intermediate shaft output gear 32b, a third intermediate shaft output gear 32c and a fourth intermediate shaft output gear 32d are disposed on the intermediate shaft 30, and a first output shaft second input gear 42a, a second output shaft second input gear 42b, a third output shaft second input gear 42c and a fourth output shaft second input gear 42d are selectively engaged with the corresponding output shaft 40, and the first intermediate shaft output gear 32a, the second intermediate shaft output gear 32b, the third intermediate shaft output gear 32c and the fourth intermediate shaft output gear 32d are engaged with the corresponding first output shaft second input gear 42a, The second output shaft second input gear 42b, the third output shaft second input gear 42c and the fourth output shaft second input gear 42d are correspondingly engaged one by one, and 7-gear, 5-gear, 3-gear and 1-gear in the power transmission system are respectively realized.
Furthermore, a second intermediate rotating shaft 10a is provided with a second intermediate output gear 10c, a second intermediate output gear 10d and a second intermediate output gear 10e, an output shaft first input gear 41a, an output shaft first input gear 41b and an output shaft first input gear 41c are sleeved on the output shaft 40 correspondingly, the second intermediate output gear 10c, the second intermediate output gear 10d and the second intermediate output gear 10e are correspondingly engaged with the corresponding output shaft first input gear 41a, the output shaft first input gear 41b and the output shaft first input gear 41c, and 6-gear, 4-gear and 2-gear in the power transmission system are respectively realized. An 8-speed transmission of the powertrain can be achieved when the first input shaft 10 is engaged with the output shaft 40.
In this embodiment, as shown in fig. 9 and 11, a sub-tank is further provided in the power transmission system to further enrich the number of gears of the power transmission system, so that the power transmission system can be applied to a medium-heavy load vehicle.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. A powertrain system, comprising:
a first motor generator and a second motor generator;
a first input shaft in power connection with the first motor generator;
a second input shaft in power connection with the second motor generator;
a first rotation-in mechanism selectively engageable with the first input shaft and in linkage with the second input shaft;
the second transfer mechanism is linked with the first input shaft;
the intermediate shaft is linked with the first transfer mechanism;
the output shaft is selectively linked with the intermediate shaft and/or the second transfer mechanism and/or the first input shaft respectively; wherein
The first motor generator is disposed offset from the second motor generator.
2. The powertrain system of claim 1, wherein the first motor generator has a first motor generator output shaft with a first motor generator output shaft gear disposed thereon, and wherein the first input shaft has a first input shaft input gear disposed thereon that meshes with the first motor generator output shaft gear.
3. The drivetrain of claim 2, wherein the first transfer mechanism is configured as a first duplicate gear that is sleeved around the first input shaft; wherein
A second input shaft gear is arranged on the second input shaft, and a first duplicate input gear meshed with the second input shaft gear is arranged on the first duplicate gear;
an intermediate shaft input gear is arranged on the intermediate shaft, and a first duplicate output gear meshed with the intermediate shaft input gear is arranged on the first duplicate gear.
4. The drivetrain of claim 3, further comprising:
a first shifting device disposed on the first input shaft and selectively engaging the first input shaft with the first duplicate gear.
5. The drivetrain of claim 4, wherein the second turn-around mechanism comprises:
one or more second intermediate rotating shafts, a second intermediate rotating input gear and a second intermediate rotating output gear, wherein the second intermediate rotating shafts are arranged in a parallel offset mode with the intermediate shaft in the circumferential direction of the first input shaft, and the second intermediate rotating input gear and the second intermediate rotating output gear are fixedly arranged on the second intermediate rotating shafts; wherein
A first input shaft output gear is arranged on the first input shaft, and the second transfer input gear is meshed with the first input shaft output gear;
and a first output shaft input gear which can be selectively jointed with the output shaft is sleeved on the output shaft in an empty manner, and the first output shaft input gear is meshed with the second transfer output gear.
6. The powertrain system of claim 5, wherein the output shaft has a second shifting device disposed thereon that selectively engages the output shaft with the first input shaft or the output shaft with the output shaft first input gear.
7. The powertrain system of claim 6, wherein the countershaft has a plurality of countershaft output gears disposed thereon, and wherein the output shaft has a plurality of output shaft second input gears intermeshed therewith one for each, the output shaft being selectively engageable with one of the output shaft second input gears.
8. The powertrain system according to claim 5 or 7, wherein the second intermediate output gear and the output shaft first input gear are configured in a plurality of pairs in one-to-one correspondence; the output gears of the intermediate shafts and the second input gears of the output shafts are constructed into a plurality of pairs in one-to-one correspondence.
9. The drivetrain of claim 7, further comprising: an engine having an engine shaft connected to the first input shaft.
10. A vehicle characterized by comprising the power transmission system according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635872.3U CN216580096U (en) | 2021-10-29 | 2021-10-29 | Power transmission system and vehicle with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122635872.3U CN216580096U (en) | 2021-10-29 | 2021-10-29 | Power transmission system and vehicle with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216580096U true CN216580096U (en) | 2022-05-24 |
Family
ID=81640291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122635872.3U Active CN216580096U (en) | 2021-10-29 | 2021-10-29 | Power transmission system and vehicle with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216580096U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978232A (en) * | 2021-09-30 | 2022-01-28 | 如果科技有限公司 | Power transmission system and vehicle with same |
| CN114962633A (en) * | 2022-06-28 | 2022-08-30 | 湖南行必达网联科技有限公司 | Gear-shifting power uninterrupted dual-motor-driven gearbox and vehicle |
| CN115352267A (en) * | 2022-07-28 | 2022-11-18 | 湖南行必达网联科技有限公司 | Hybrid power transmission system with middle rotating shaft and working machine |
| CN115465082A (en) * | 2022-07-28 | 2022-12-13 | 湖南行必达网联科技有限公司 | Double-motor hybrid gearbox with middle rotating shaft and operation machine |
-
2021
- 2021-10-29 CN CN202122635872.3U patent/CN216580096U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113978232A (en) * | 2021-09-30 | 2022-01-28 | 如果科技有限公司 | Power transmission system and vehicle with same |
| WO2023051513A1 (en) * | 2021-09-30 | 2023-04-06 | 如果科技有限公司 | Power transmission system and vehicle |
| CN114962633A (en) * | 2022-06-28 | 2022-08-30 | 湖南行必达网联科技有限公司 | Gear-shifting power uninterrupted dual-motor-driven gearbox and vehicle |
| CN115352267A (en) * | 2022-07-28 | 2022-11-18 | 湖南行必达网联科技有限公司 | Hybrid power transmission system with middle rotating shaft and working machine |
| CN115465082A (en) * | 2022-07-28 | 2022-12-13 | 湖南行必达网联科技有限公司 | Double-motor hybrid gearbox with middle rotating shaft and operation machine |
| CN115352267B (en) * | 2022-07-28 | 2024-02-27 | 湖南行必达网联科技有限公司 | Hybrid power transmission system with middle rotating shaft and working machine |
| CN115465082B (en) * | 2022-07-28 | 2024-02-27 | 湖南行必达网联科技有限公司 | Dual-motor hybrid gearbox with middle rotating shaft and working machine |
| WO2024045548A1 (en) * | 2022-07-28 | 2024-03-07 | 湖南行必达网联科技有限公司 | Double-motor hybrid gearbox having transfer shaft, and heavy equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216580096U (en) | Power transmission system and vehicle with same | |
| JP5843863B2 (en) | Countershaft type dual clutch transmission | |
| CN101713459B (en) | Double clutch type automatic gearbox | |
| CN113879103A (en) | Power transmission system and vehicle with same | |
| CN113942382B (en) | Power transmission system for vehicle and vehicle | |
| CN113978232A (en) | Power transmission system and vehicle with same | |
| CN114407637B (en) | Power transmission system and vehicle | |
| CN217022174U (en) | Power transmission system for vehicle and vehicle | |
| CN113879104A (en) | Power transmission system and vehicle with same | |
| CN216783253U (en) | Power transmission system and vehicle | |
| CN202349120U (en) | Power transmission mechanism of automobile transmission | |
| CN102425647B (en) | Power transmission mechanism for double-clutch automatic transmission | |
| CN101907150B (en) | Double-clutch automatic transmission without reverse gear shaft | |
| CN111251860A (en) | Power driving system and vehicle | |
| CN216374155U (en) | Power transmission system and vehicle with same | |
| CN216331396U (en) | Power transmission system and vehicle with same | |
| CN213056676U (en) | 8 speed transmission, power assembly and vehicle | |
| CN115503459A (en) | Multi-gear variable speed hybrid power system with double motors and double middle shafts with power take-off modules | |
| CN115246312A (en) | Multi-gear hybrid power system | |
| CN204041893U (en) | A kind of speed changer | |
| CN111251872B (en) | Power driving system and vehicle | |
| CN111823855A (en) | Design method and control strategy of double-power multi-mode power system | |
| CN111114285A (en) | Power driving system and vehicle | |
| CN218408390U (en) | Four-gear automatic transmission axle for electric automobile and vehicle | |
| CN112303192B (en) | Eight-speed double clutch type automatic transmission and vehicle |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |