CN221137606U - Power transmission system, four-wheel drive system and vehicle - Google Patents
Power transmission system, four-wheel drive system and vehicle Download PDFInfo
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- CN221137606U CN221137606U CN202323635943.5U CN202323635943U CN221137606U CN 221137606 U CN221137606 U CN 221137606U CN 202323635943 U CN202323635943 U CN 202323635943U CN 221137606 U CN221137606 U CN 221137606U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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Abstract
The utility model discloses a power transmission system, a four-wheel drive system and a vehicle, wherein the power transmission system comprises: an engine provided with a first output shaft; the first motor is provided with a second output shaft; the first planetary gear system is provided with a first sun gear, a first planet carrier and a first gear ring, and the first output shaft is connected with the first planet carrier; the second planetary gear train is provided with a second sun gear, a second planet carrier and a second gear ring, the second gear ring is connected with the first planet carrier, the second planet carrier is connected with the first sun gear and is selectively engaged with the second output shaft, and the second sun gear is selectively engaged with the second output shaft; the third output shaft is linked with the first gear ring. According to the power transmission system designed according to the utility model, the second output shaft of the power transmission system is selectively engaged with the second sun gear and/or the second planet carrier to realize vehicle gear shifting, the power transmission system is convenient in gear shifting operation, the power transmission system is simple in structure, the use of an electric motor is reduced, and the production cost of the vehicle is reduced.
Description
Technical Field
The utility model relates to the field of vehicles, in particular to a power transmission system, a four-wheel drive system and a vehicle.
Background
In the related art, along with the increasing requirements of the state on the economy and the emission of vehicles, new energy vehicles are becoming more popular, the new energy vehicles comprise hybrid electric vehicles and pure electric vehicles, in the prior art, the power transmission system of the hybrid electric vehicles driven by multiple gears is complex in structure, and the power transmission system is matched with a plurality of motors, so that the production cost of the vehicles is increased.
Disclosure of utility model
The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, an object of the present utility model is to propose a drivetrain. According to the power transmission system designed according to the utility model, the second output shaft of the power transmission system is selectively engaged with the second sun gear and/or the second planet carrier to realize vehicle gear shifting, the power transmission system is convenient in gear shifting operation, the power transmission system is simple in structure, the use of an electric motor is reduced, and the production cost of the vehicle is reduced.
The utility model also provides a four-wheel drive system with the power transmission system.
The utility model further provides a vehicle with the four-wheel drive system.
The power transmission system according to the present utility model includes: an engine provided with a first output shaft; a first motor provided with a second output shaft; the first planetary gear system is provided with a first sun gear, a first planet carrier and a first gear ring, and the first output shaft is connected with the first planet carrier; a second planetary gear train provided with a second sun gear, a second carrier, and a second ring gear, the second ring gear being connected to the first carrier, the second carrier being connected to the first sun gear and being selectively engageable with the second output shaft, the second sun gear being selectively engageable with the second output shaft; and the third output shaft is linked with the first gear ring.
According to the power transmission system, the second output shaft of the power transmission system is selectively engaged with the second sun gear and/or the second planet carrier to realize vehicle gear shifting, the power transmission system is convenient in gear shifting operation, and vehicle gear shifting is easy to realize.
According to some embodiments of the utility model, further comprising: a first engagement device provided to the second output shaft and selectively engaging the second output shaft with the second sun gear; the second engagement device is provided to the second output shaft and is selectively engaged with the second carrier.
According to some embodiments of the utility model, a first engagement device is provided on the first output shaft, the first engagement device selectively engaging the first sun gear, and a second engagement device selectively engaging the first planet carrier.
According to some embodiments of the utility model, the first sun gear and the second sun gear are coaxially arranged.
According to some embodiments of the utility model, the first output shaft and the second output shaft are coaxially arranged.
According to some embodiments of the utility model, the second sun gear is hollow and sleeved on the outer periphery of the second output shaft, and the first sun gear is hollow and sleeved on the outer periphery of the second output shaft.
According to some embodiments of the utility model, further comprising: the differential mechanism is provided with a differential mechanism input gear, and the differential mechanism input gear is linked with the third output shaft.
According to some embodiments of the utility model, the first gear ring is provided with a plurality of first gear ring output gears, the third output shaft is provided with third output shaft gears corresponding to the first gear ring output gears one by one, and the plurality of third output shaft gears are respectively and selectively engaged with the third output shaft.
The four-wheel drive system according to the present utility model is briefly described below.
The four-wheel drive system according to the present utility model includes the power transmission system according to any one of the above embodiments, and since the four-wheel drive system according to the present utility model is provided with the power transmission system according to the above embodiment, the four-wheel drive system is simple in structure and convenient in power mode switching, and at the same time, the number of motors of the four-wheel drive system is small, so that the production cost of the four-wheel drive system is reduced.
A vehicle according to another embodiment of the present utility model is briefly described below.
The vehicle according to the present utility model includes the four-wheel drive system according to any one of the above embodiments, and since the vehicle according to the present utility model is provided with the four-wheel drive system according to the above embodiments, the vehicle is simple in structure and the vehicle is more convenient in gear shifting, while the number of motors of the vehicle is small, and the production cost of the vehicle is reduced.
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 foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic illustration of a powertrain system according to an embodiment of the present utility model.
Reference numerals: 1. a power transmission system;
11. An engine; 12. a first motor;
21. A first sun gear; 22. a first planet carrier; 23. a first ring gear; 231. a first ring gear output gear;
31. A second sun gear; 32. a second carrier; 33. a second ring gear;
41. a third output shaft; 411. a third output shaft gear; 42. a differential; 43. a first bevel gear; 44. a second bevel gear;
51. A first engagement means; 52. a second engagement means; 53. a fixing device.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may communicate with each other; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present utility model, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the related art, along with the increasing requirements of the state on the economy and the emission of vehicles, new energy vehicles are becoming more popular, the new energy vehicles comprise hybrid electric vehicles and pure electric vehicles, in the prior art, the power transmission system of the hybrid electric vehicles driven by multiple gears is complex in structure, and the power transmission system is matched with a plurality of motors, so that the production cost of the vehicles is increased.
A drivetrain 1 according to an embodiment of the present utility model is described below with reference to fig. 1.
As shown in fig. 1, a power transmission system 1 according to the present utility model includes: the engine 11, the first motor 12, the first planetary gear train, the second planetary gear train and the third output shaft 41, the engine 11 is provided with a first output shaft, the first motor 12 is provided with a second output shaft, the first planetary gear train is provided with a first sun gear 21, a first planet carrier 22 and a first gear ring 23 which are matched with each other, the first output shaft is connected with the first planet carrier 22, the second planetary gear train is provided with a second sun gear 31, a second planet carrier 32 and a second gear ring 33 which are matched with each other, the second gear ring 33 is connected with the first planet carrier 22, the second planet carrier 32 is connected with the first sun gear 21 and is selectively engaged with the second output shaft, the second sun gear 31 is selectively engaged with the second output shaft, and the third output shaft 41 is selectively engaged with the first gear ring 23.
The engine 11 has a first output shaft adapted to be connected with the first carrier 22, the first carrier 22 is adapted to be connected with the second ring gear 33, the first sun gear 21 is adapted to be connected with the second carrier 32, the first electric motor 12 has a second output shaft selectively engaged with the second sun gear 31 and/or the second carrier 32, the first ring gear 23 is linked with the third output shaft 41 to drive the third output shaft 41 to rotate, and the third output shaft 41 is adapted to drive the vehicle to move.
It will be appreciated that when the second output shaft is engaged with the second sun gear 31, the engine 11 operates to rotate the first output shaft, which may rotate the first planet carrier 22 and the second ring gear 33, the first motor 12 operates to rotate the second output shaft, which may rotate the second sun gear 31, the second sun gear 31 and the second ring gear 33 together drive the second planet carrier 32 and the first sun gear 21 to rotate, and then the first sun gear 21 and the first planet carrier 22 together drive the first ring gear 23 to rotate, and the first ring gear 23 rotates to drive the third output shaft 41 to rotate.
Thus, the output torque of the engine 11 can be transmitted to the first carrier 22 through the first output shaft, the output torque of the first electric motor 12 can be transmitted to the second carrier 32 and the second ring gear 33 through the second output shaft and the second sun gear 31, the torque of the second ring gear 33 is transmitted to the first carrier 22, and the torque of the second carrier 32 is transmitted to the first sun gear 21, and since the first ring gear 23 is driven by the first sun gear 21 and the first carrier 22 in common, the torque of the first carrier 22 and the torque of the first sun gear 21 are transmitted to the first ring gear 23 in common, that is, the output torque of the engine 11 and the output torque of the first electric motor 12 are coupled at the first ring gear 23, and the first ring gear 23 transmits the torque to the third output shaft 41.
It should be noted that, when the second output shaft is engaged with the second sun gear 31 and the second output shaft rotates and drives the second ring gear 33 to rotate, both the second sun gear 31 and the second planet carrier 32 can reduce the rotation speed of the second output shaft transmitted to the second ring gear 33 and increase the torque of the second output shaft transmitted to the second ring gear 33, so when the second output shaft is engaged with the second sun gear 31, the third output shaft 41 has a larger torque, so that the vehicle has good power, and is suitable for escaping or accelerating the vehicle.
When the second output shaft is engaged with the second planet carrier 32, the engine 11 operates to rotate the first output shaft, the first output shaft rotates to drive the first planet carrier 22, the first motor 12 operates to rotate the second output shaft, the second output shaft rotates to drive the second planet carrier 32 and the first sun gear 21 to rotate, the second planet carrier 32 rotates to drive the second ring gear 33 and the first planet carrier 22 to rotate, and finally, the first sun gear 21 and the first planet carrier 22 jointly drive the first ring gear 23 to rotate, and the first ring gear 23 rotates to drive the third output shaft 41 to rotate.
Thus, the output torque of the engine 11 is transmitted to the first carrier 22 via the first output shaft, the output torque of the first electric motor 12 is transmitted to the first sun gear 21 and the first carrier 22 via the second output shaft and the second carrier 32, and since the first ring gear 23 is driven by the first sun gear 21 and the first carrier 22 in common, the torque of the first carrier 22 and the torque of the first sun gear 21 are transmitted to the first ring gear 23 in common, that is, the output torque of the engine 11 and the output torque of the first electric motor 12 are coupled at the first ring gear 23, and the first ring gear 23 transmits the torque to the third output shaft 41.
It should be noted that, when the second output shaft is engaged with the second planet carrier 32 and the second output shaft rotates and drives the second ring gear 33 to rotate, the second planet carrier 32 may reduce the rotation speed of the second output shaft transmitted to the second ring gear 33 and increase the torque of the second output shaft transmitted to the second ring gear 33, so that when the second output shaft is engaged with the second planet carrier 32, compared with the second output shaft engaged with the second sun gear 31, the rotation speed of the third output shaft 41 is greater and the torque is smaller, and the vehicle is suitable for normal running of the vehicle.
When the second sun gear 31 and the second planet carrier 32 are both engaged with the second output shaft, the first sun gear 21 is fixed relative to the second output shaft, the first planet carrier 22 is fixed relative to the second output shaft, that is, the first motor 12 may be disabled at this time, the engine 11 may rotate the first output shaft, the first output shaft rotates to drive the first planet carrier 22, the first sun gear 21 and the second planetary gear train to jointly rotate, the first planet carrier 22 and the second sun gear 31 rotate to drive the first gear ring 23 to rotate, the first gear ring 23 rotates to drive the third output shaft 41 to rotate, and at this time, the engine 11 may directly drive the third output shaft 41 to rotate to enable the vehicle to move.
According to the power transmission system 1, the second output shaft of the power transmission system 1 is selectively engaged with the second sun gear 31 and/or the second planet carrier 32 to realize vehicle gear shifting, the power transmission system 1 is convenient in gear shifting operation, and vehicle gear shifting is easy to realize.
According to some embodiments of the utility model, as shown in fig. 1, the power transmission system 1 further comprises: a first engagement device 51 and a second engagement device 52, the first engagement device 51 being provided to the second output shaft and selectively engaging the second output shaft with the second sun gear 31; a second engagement device 52 is provided on the second output shaft and is selectively engageable with the second carrier 32.
In some embodiments, the first engagement device 51 and the second engagement device 52 are respectively fixed relative to the second output shaft in a radial direction of the second output shaft, the first engagement device 51 is movable in an axial direction of the second output shaft and selectively engages the second output shaft with the second sun gear 31, and the second engagement device 52 is movable in the axial direction of the second output shaft and selectively engages the second output shaft with the second carrier 32. Thus, the second output shaft can be selectively engaged with the second sun gear 31 and/or the second carrier 32 by controlling the movement of the first engagement device 51 and the second engagement device 52, the control manner is simple and easy to realize, and the shifting convenience of the vehicle is improved. It should be noted that the first engagement device 51 and the second engagement device 52 may be synchronizers or clutches, and the like, and are not limited thereto.
According to some embodiments of the utility model, as shown in fig. 1, a fixing device 53 is provided on the second output shaft, a first engagement device 51 selectively engages the fixing device 53 with the second sun gear 31, and a second engagement device 52 selectively engages the fixing device 53 with the second planet carrier 32.
In some embodiments, the second output shaft is fixedly provided with a fixing device 53, the fixing device 53 being adapted to provide mounting positions for the first engagement device 51 and the second engagement device 52, the first engagement device 51 and the second engagement device 52 being provided at two side walls of the fixing device 53 facing away from each other, respectively, in an axial direction of the second output shaft, the first engagement device 51 being moved in the axial direction of the second output shaft to selectively engage with the second sun gear 31, and the second engagement device 52 being moved in the axial direction of the second output shaft to selectively engage with the second planet carrier 32. The first engagement device 51 engages with the second sun gear 31 to cause the second sun gear 31 to be linked with the fixing device 53, thereby causing the second sun gear 31 to be linked with the second output shaft, and at the same time, the second engagement device 52 engages with the second carrier 32 to cause the second carrier 32 to be linked with the fixing device 53, thereby causing the second carrier 32 to be linked with the second output shaft, the power transmission system 1 is simple and easy to implement in a shift manner, and the shift convenience of the vehicle is improved.
According to some embodiments of the present utility model, as shown in fig. 1, the first sun gear 21 and the second sun gear 31 are coaxially arranged, it is understood that the first sun gear 21 is connected to the second planet carrier 32, and thus, the rotation center of the first sun gear 21 coincides with the rotation center of the second planet carrier 32, and since the rotation center of the second sun gear 31 coincides with the rotation center of the second planet carrier 32, the coaxial arrangement of the first sun gear 21 and the second sun gear 31 herein can simplify the connection process of the first planetary gear train and the second planetary gear train, thereby improving the assembly efficiency of the power transmission system 1 and further improving the production efficiency of the vehicle.
According to some embodiments of the present utility model, as shown in fig. 1, the first output shaft and the second output shaft are coaxially arranged, it is understood that the first output shaft is connected with the first planet carrier 22, the rotation center of the first output shaft coincides with the rotation center of the first planet carrier 22, that is, the rotation center of the first output shaft coincides with the rotation center of the first sun gear 21, and the second output shaft may drive the second sun gear 31 and/or the second planet carrier 32 to rotate, so that the rotation center of the second output shaft coincides with the rotation center of the second sun gear 31, and thus, coaxially arranging the first output shaft and the second output shaft herein may simplify the connection process of the first output shaft, the first planetary gear train, the second planetary gear train and the second output shaft, and may make the layout of the power transmission system 1 in the axial direction more compact, and, since the axial direction of the first output shaft is parallel to the length direction of the vehicle, the first output shaft, the first planetary gear train, the second planetary gear train and the second output shaft are sequentially arranged in the axial direction, so that the power transmission system 1 may make full use of the installation space of the vehicle in the length direction, thereby making the layout of other parts of the vehicle more convenient.
According to some embodiments of the utility model, as shown in fig. 1, the second sun gear 31 is sleeved on the outer periphery of the second output shaft.
In some existing technologies, the installation of the second sun gear requires the provision of a mounting shaft. According to the application, the second sun gear 31 is sleeved on the second output shaft in an empty mode, so that the second output shaft has a function of installing the second sun gear 31, the function of the second output shaft is more abundant, meanwhile, the installation shaft for installing the second sun gear 31 can be prevented from being independently arranged, the production cost of the power transmission system 1 is reduced, meanwhile, the installation shaft can be prevented from occupying the installation space of the vehicle for installing the power transmission system 1, the layout of the power transmission system 1 is facilitated, and the production efficiency of the vehicle is improved.
According to some embodiments of the utility model, as shown in fig. 1, the first sun gear 21 is sleeved on the outer periphery of the second output shaft.
In some existing technologies, the installation of the first sun gear requires the installation of a mounting shaft. According to the application, the first sun gear 21 is sleeved on the second output shaft in an empty mode, so that the second output shaft has a function of installing the first sun gear 21, the function of the second output shaft is more abundant, meanwhile, the installation shaft for installing the first sun gear 21 can be prevented from being independently arranged, the production cost of the power transmission system 1 is reduced, meanwhile, the assembly working procedures of the power transmission system 1 can be reduced, and the assembly efficiency of the power transmission system 1 is improved.
According to some embodiments of the utility model, as shown in fig. 1, the power transmission system 1 further comprises: the differential 42, the differential 42 being provided with a differential input gear, the differential input gear being linked with the third output shaft 41. In some embodiments, the third output shaft 41 is linked with a differential input gear, the third output shaft 41 may transmit torque to the differential input gear, the differential 42 further has a first output gear and a second output gear linked with the differential input gear, the first output gear and the second output gear are linked with two wheels in the vehicle width direction respectively, the differential input gear is adapted to transmit torque of the third output shaft 41 to the first output gear and the second output gear to rotate the first output gear and the second output gear, the first output gear and the second output gear rotate and drive the two wheels to rotate, thereby driving the vehicle to move, and the differential 42 may make the rotation speeds of the two wheels in the vehicle width direction different, thereby improving the cornering performance of the vehicle.
Further, the power transmission system 1 further comprises a first bevel gear 43 and a second bevel gear 44, the first bevel gear 43 is coaxial with and connected with the third output shaft 41, the second bevel gear 44 is linked with the differential input gear, the first bevel gear 43 is meshed with the second bevel gear 44, and the arrangement of the first bevel gear 43 and the second bevel gear 44 changes the power transmission direction of the power transmission system 1, so that the loading of the longitudinally-arranged front-drive vehicle is facilitated.
According to some embodiments of the present utility model, as shown in fig. 1, a plurality of first ring gear output gears 231 are provided on the first ring gear 23, and third output shafts 41 are provided with third output shaft gears 411 in one-to-one correspondence with the first ring gear output gears 231, and the plurality of third output shaft gears 411 are selectively engaged with the third output shafts 41, respectively.
It will be appreciated that the output torque of the engine 11 or the first electric motor 12 may be transmitted to the first ring gear 23, the first ring gear 23 being provided with a plurality of first ring gear output gears 231, the third output shaft 41 being provided with a plurality of third output shaft gears 411 respectively meshing with the plurality of first ring gear output gears 231, each third output shaft gear 411 of the plurality of third output shaft gears 411 being selectively engageable with the third output shaft 41 to cause the first ring gear 23 to drive the third output shaft 41 to rotate.
It should be noted that the plurality of first ring gear output gears 231 are in one-to-one correspondence with the plurality of third output shaft gears 411 and are meshed to form a plurality of pairs of gear sets, so that the diameter of the first ring gear output gear 231 of each pair of gear sets is different from the diameter of the third output shaft gear 411, so that the first ring gear 23 can provide different torques for the third output shaft 41, and the number of gears of the vehicle can be increased, so that the power modes of the vehicle are more diversified.
The four-wheel drive system according to the present utility model is briefly described below.
The four-wheel drive system according to the present utility model includes: the power transmission system 1 is configured as the power transmission system 1 according to any one of the above embodiments, the power transmission system 1 is linked with the first drive axle, the second drive axle, the power transmission system 1, and the second motor is disposed on the second drive axle and linked with the second drive axle.
In some embodiments, the first transaxle may be configured as a front transaxle of a vehicle and the second transaxle may be configured as a rear transaxle of a vehicle; in other embodiments, the first transaxle may be configured as a rear transaxle of a vehicle and the second transaxle may be configured as a front transaxle of a vehicle, without limitation.
In some embodiments, the vehicle may have two drive axles, the third output shaft 41 is adapted to be in linkage with one of the drive axles of the vehicle, rotation of the third output shaft 41 may drive one of the drive axles to rotate the wheels, a second motor may be provided on the other drive axle of the vehicle, the second motor is electrically connected to the battery of the vehicle and adapted to drive the other drive axle to move the vehicle, and the first motor 12 is electrically connected to the battery, whereby the present application provides four-wheel drive of the vehicle by providing the second motor and cooperating with the driveline to drive both drive axles of the vehicle to operate, such that the power modes of the vehicle are more diverse. The second motor is linked with the second drive axle through the speed reducer, and the speed reducer can increase the torque transmitted to the second drive axle by the second motor, so that the output torque of the second drive axle is improved, and the dynamic property of the vehicle is improved.
It should be noted that, in the four-wheel drive mode of the vehicle, the second sun gear 31 and the second planet carrier 32 may be controlled to be engaged with the second output shaft, and the first electric motor 12 may not work, at this time, the engine 11 may cooperate with the second electric motor to jointly drive the vehicle to move, and at the same time, the engine 11 may work to drive the second output shaft of the first electric motor 12 to rotate, so that the first electric motor 12 may charge the battery.
Meanwhile, since the four-wheel drive system of the utility model is provided with the power transmission system 1 of the embodiment, and the power transmission system 1 of any one of the embodiments is arranged on the four-wheel drive system according to the utility model, the four-wheel drive system has a simple structure and convenient power mode switching, and meanwhile, the number of motors of the four-wheel drive system is small, so that the production cost of the four-wheel drive system is reduced.
The vehicle according to the present utility model is briefly described below.
The vehicle according to the utility model is provided with the four-wheel drive system according to the above embodiment, and since the vehicle according to the utility model is provided with the four-wheel drive system according to any one of the above embodiments, the vehicle is simple in structure and convenient in vehicle gear shifting, and at the same time, the number of motors of the vehicle is small, so that the production cost of the vehicle is reduced.
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means 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 present utility model. In this specification, schematic representations of the above terms are not necessarily directed 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. Further, one skilled in the art can engage and combine the different embodiments or examples described in this specification.
Although embodiments of the present utility model have been shown and described above, variations, modifications, substitutions and alterations are possible to the above embodiments.
Claims (10)
1. A drivetrain, comprising:
an engine (11), the engine (11) being provided with a first output shaft;
a first motor (12), the first motor (12) being provided with a second output shaft;
The first planetary gear system is provided with a first sun gear (21), a first planet carrier (22) and a first gear ring (23), and the first output shaft is connected with the first planet carrier (22);
A second planetary gear train provided with a second sun gear (31), a second carrier (32) and a second ring gear (33), the second ring gear (33) being connected to the first carrier (22), the second carrier (32) being connected to the first sun gear (21) and being selectively engageable with the second output shaft, the second sun gear (31) being selectively engageable with the second output shaft;
And a third output shaft (41), wherein the third output shaft (41) is linked with the first gear ring (23).
2. The powertrain system of claim 1, further comprising: a first engagement device (51) and a second engagement device (52), the first engagement device (51) being provided to the second output shaft and selectively engaging the second output shaft with the second sun gear (31); the second engagement device (52) is provided to the second output shaft and is selectively engaged with the second carrier (32).
3. A drivetrain according to claim 2, characterized in that a securing means (53) is provided on the second output shaft, the first engagement means (51) selectively engaging the securing means (53) with the second sun wheel (31), the second engagement means (52) selectively engaging the securing means (53) with the second planet carrier (32).
4. A drivetrain according to claim 1, characterized in that the first sun gear (21) and the second sun gear (31) are arranged coaxially.
5. The drivetrain of claim 4, wherein the first and second output shafts are coaxially arranged.
6. The power transmission system according to claim 5, characterized in that the second sun gear (31) is blank around the outer periphery of the second output shaft, and the first sun gear (21) is blank around the outer periphery of the second output shaft.
7. The powertrain system of claim 1, further comprising: -a differential (42), the differential (42) being provided with a differential input gear, which is in linkage with the third output shaft (41).
8. The power transmission system according to claim 7, characterized in that a plurality of first ring gear output gears (231) are provided on the first ring gear (23), and third output shafts (41) are provided with third output shaft gears (411) corresponding to the first ring gear output gears (231) one by one, and the plurality of third output shaft gears (411) are selectively engaged with the third output shafts (41), respectively.
9. A four-wheel drive system, comprising:
A first drive axle and a second drive axle;
A drivetrain (1), the drivetrain (1) being configured as a drivetrain (1) according to any one of claims 1 to 8, the drivetrain (1) being coupled with the first drive axle;
And the second motor is arranged on the second drive axle and is linked with the second drive axle.
10. A vehicle comprising the four-wheel drive system of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323635943.5U CN221137606U (en) | 2023-12-28 | 2023-12-28 | Power transmission system, four-wheel drive system and vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323635943.5U CN221137606U (en) | 2023-12-28 | 2023-12-28 | Power transmission system, four-wheel drive system and vehicle |
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| CN221137606U true CN221137606U (en) | 2024-06-14 |
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| CN202323635943.5U Active CN221137606U (en) | 2023-12-28 | 2023-12-28 | Power transmission system, four-wheel drive system and vehicle |
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| CN (1) | CN221137606U (en) |
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