CN220923810U - Integrated planetary speed change system and vehicle - Google Patents
Integrated planetary speed change system and vehicle Download PDFInfo
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- CN220923810U CN220923810U CN202322528482.5U CN202322528482U CN220923810U CN 220923810 U CN220923810 U CN 220923810U CN 202322528482 U CN202322528482 U CN 202322528482U CN 220923810 U CN220923810 U CN 220923810U
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Abstract
The application provides an integrated planetary speed change system and a vehicle, and relates to the technical field of automobiles, wherein the speed change system comprises a shell, a motor, two planetary gear sets and a transmission assembly; the first output of the second planetary gear set is connected with the input of the first planetary gear set; the output end of the motor is connected with the input end of the transmission assembly; the transmission assembly includes a first state, a second state, and a third state; in the first state, the transmission assembly is connected with the motor and the second planetary gear set, and the motor drives the second planetary gear set to output a first rotating speed; in a second state, the transmission assembly is connected with the motor and a second planetary gear set, and the second planetary gear set outputs a second rotating speed; in a third state, the transmission assembly disconnects the second planetary gear set from the motor; the integrated planetary speed change system provided by the application not only can realize the speed reduction and differential action, but also has the functions of gear shifting and disconnection, and is high in integration level, small in space occupation and simpler in structure and arrangement.
Description
Technical Field
The application relates to the technical field of automobiles, in particular to an integrated planetary speed change system and a vehicle.
Background
Most of the differential systems in the current pure electric automobile market adopt a differential mechanism, some products can be additionally provided with a locking function on the basis of the differential mechanism, and some differential systems adopt a mode of simultaneously driving two planetary rows by a single motor. From the viewpoint of comprehensive market products, the existing differential system lacks the function of shifting and disconnecting, the automobile shifting is realized by means of the shifting system, the whole structure is complex, and the space occupation is large.
Disclosure of utility model
In view of the foregoing, the present application is directed to an integrated planetary transmission system to solve the problem that the existing differential system does not have the functions of shifting and disconnecting.
In order to achieve the above purpose, the technical scheme of the application is realized as follows:
An integrated planetary transmission system comprising: a housing and a motor, a first planetary gear set and a second planetary gear set disposed inside the housing; the first output end of the second planetary gear set is connected with the input end of the first planetary gear set; a transmission assembly is arranged between the motor and the second planetary gear set, and the output end of the motor is connected with the input end of the transmission assembly;
The transmission assembly includes a first state, a second state, and a third state;
in the first state, the transmission assembly is connected with the motor and the second planetary gear set, and the motor drives the second planetary gear set to output a first rotating speed;
In the second state, the transmission assembly is connected with the motor and the second planetary gear set, and the motor drives the second planetary gear set to output a second rotating speed;
In the third state, the transmission assembly disconnects the second planetary gear set from the motor.
Further, the transmission assembly includes a third planetary gear set, a shifter, and a connecting shaft; the connecting shaft is connected with the output end of the motor, the output end of the motor is connected with the first input end of the third planetary gear set, the gear shifting device is connected with the second input end of the third planetary gear set, and the output end of the third planetary gear set is connected with the input end of the second planetary gear set;
in the first state, the shifting device is connected with the connecting shaft;
In the second state, the shifter is connected to the housing;
in the third state, the gear shifting device is disconnected from the connecting shaft and the housing.
Further, the transmission assembly further comprises a coupler connected with the housing; in the second state, the shifter is connected to the coupling; in the third state, the shifter is disconnected from both the connecting shaft and the coupling.
Optionally, the transmission assembly includes a third planetary gear set, a gear shifting device and a connecting shaft, the connecting shaft is connected with an output end of the motor, the output end of the motor is connected with an input end of the third planetary gear set, and the third planetary gear set is connected with the housing; the gear shifting device is connected with the input end of the second planetary gear set;
in the first state, the shifting device is connected with the connecting shaft;
in the second state, the shifter is connected to the output of the third planetary gear set;
In the third state, the shifter is disconnected from the connecting shaft and the output of the third planetary gear set.
Further, the first planetary gear set comprises a first sun gear, a first planet carrier, a first planet wheel and a first gear ring; the first planet gears are arranged on the first planet carrier, the first planet gears are positioned between the first sun gear and the first gear ring, and the first planet gears are meshed with the first sun gear and the first gear ring at the same time;
The second planetary gear set comprises a second sun gear, a second planet carrier, a second planet wheel and a second gear ring; the second planet wheel is arranged on the second planet carrier, the second planet wheel is positioned between the second sun wheel and the second gear ring, and the second planet wheel is meshed with the second sun wheel and the second gear ring at the same time.
Further, the second planet carrier is connected with a first wheel, the second gear ring is connected with the first sun gear, the first planet carrier is connected with the second wheel, and the first gear ring is connected with the shell.
Further, the transmission assembly further comprises a shifting device, and the shifting device is connected with the gear shifting device and used for shifting the connection position of the gear shifting device so that the transmission assembly is switched to the first state, the second state or the third state.
Further, the speed change system further comprises a controller, wherein the controller is connected with the shifting device and used for controlling the shifting device to shift the gear shifting device so that the gear shifting device changes the connection position.
Further, the shifting device is a synchronizer or a clutch.
Compared with the prior art, the integrated planetary transmission system has the following advantages:
The integrated planetary speed change system comprises a shell, a motor, a first planetary gear set, a second planetary gear set and a transmission assembly, wherein the transmission assembly comprises a first state, a second state and a third state, and the motor and the second planetary gear set can be connected or disconnected by switching the state of the transmission assembly, so that the speed change system can freely switch among three working modes of a first gear, a second gear and a disconnection mode, and the motor can be kept in a high-power area by switching the gears, thereby saving oil consumption and improving the cruising ability of a vehicle; in the disconnected mode, the four-wheel drive system is in a two-wheel drive mode, so that torque and rotation speed of the wheel end can be prevented from being transmitted to the motor end pair to generate motor dragging, and the effect of reducing energy loss is achieved. The integrated planetary speed change system provided by the application can replace a differential mechanism to realize the function of speed reduction and differential speed, has the functions of gear shifting and disconnection, has high integration level, small space occupation, simpler structure and arrangement, reduces the control requirement and complexity of the system, and can be widely applied to four-wheel drive vehicles.
Another object of the application is to propose a vehicle comprising an integrated planetary transmission system as described above.
The advantages of the vehicle over the prior art are the same as those of the integrated planetary transmission system described above, and are not described in detail herein.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic diagram of an integrated planetary transmission system according to an embodiment of the present application;
FIG. 2 is a schematic diagram illustrating the operation of an integrated planetary transmission system according to one embodiment of the present application;
FIG. 3 is a schematic diagram illustrating an integrated planetary transmission system according to a second embodiment of the present application;
fig. 4 is a schematic diagram illustrating the working principle of an integrated planetary transmission system according to a second embodiment of the present application.
Reference numerals illustrate:
1. a first planetary gear set; 11. a first sun gear; 12. a first planet carrier; 13. a first ring gear;
2. A second planetary gear set; 21. a second sun gear; 22. a second carrier; 23. a second ring gear;
3. A third planetary gear set; 31. a third sun gear; 32. a third carrier; 33. a third ring gear;
4. a housing; 5. a motor; 51. a motor shaft; 6. a synchronizer; 7. a connecting shaft; 8. a combiner.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
In addition, references to "upper", "lower", "left", "right", "front", "rear", etc. in the embodiments of the present application are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present application and simplify description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application. Moreover, relational terms such as "first," "second," "third," and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities or order, nor should it be construed as indicating or implying relative importance.
The application will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
As shown in fig. 1 and 2, an integrated planetary transmission system includes a housing 4 and a motor 5, a first planetary gear set 1, and a second planetary gear set 2 provided inside the housing 4; a first output of the second planetary gear set 2 is connected to an input of the first planetary gear set 1; a transmission assembly is arranged between the motor 5 and the second planetary gear set 2, and the output end of the motor 5 is connected with the input end of the transmission assembly; the transmission assembly includes a first state, a second state, and a third state.
In the first state, the transmission assembly connects the motor 5 with the second planetary gear set 2, and enables the motor 5 to drive the second planetary gear set 2 to output a first rotation speed; in the second state, the transmission assembly connects the motor 5 with the second planetary gear set 2, and enables the motor 5 to drive the second planetary gear set 2 to output a second rotating speed; in the third state, the transmission assembly disconnects the second planetary gear set 2 from the motor 5.
Specifically, the first planetary gear set 1 includes a first sun gear 11, a first carrier 12, a first planet gear, and a first ring gear 13; the first planet gears are mounted on the first planet carrier 12, the first planet gears are located between the first sun gear 11 and the first gear ring 13, and the first planet gears are meshed with the first sun gear 11 and the first gear ring 13 at the same time. The second planetary gear set 2 comprises a second sun gear 21, a second planet carrier 22, second planet gears and a second ring gear 23; the second planetary gear is mounted on the second planetary gear carrier 22, the second planetary gear is located between the second sun gear 21 and the second ring gear 23, and the second planetary gear meshes with the second sun gear 21 and the second ring gear 23 simultaneously.
Referring to fig. 1, a first carrier 12 is connected to the second wheel as one output of the entire transmission system, and a first ring gear 13 is connected to the housing 4 so that the first ring gear 13 remains stationary; the first sun gear 11 is coaxially connected with the second ring gear 23 so that torque can be transmitted between the first planetary gear set 1 and the second planetary gear set 2, and the second carrier 22 is connected to the first wheel as another output of the entire transmission system.
A transmission assembly is arranged between the motor 5 and the second planetary gear set 2, which transmission assembly comprises a gear shifting device, a third planetary gear set 3 and a connecting shaft 7. In this embodiment, the shifting device is a synchronizer 6, and in other embodiments, the shifting device may be a clutch or other device capable of achieving the purpose of engagement or disengagement. The third planetary gear set 3 includes a third sun gear 31, a third carrier 32, third planet gears mounted on the third carrier 32, and a third ring gear 33, the third planet gears being located between the third sun gear 31 and the third ring gear 33 and meshing with both the third sun gear 31 and the third ring gear 33. As shown in fig. 1, the connecting shaft 7 is connected to a motor shaft 51 of the motor 5, the motor shaft 51 is connected to the third sun gear 31, the synchronizer 6 is connected to the third carrier 32, and the third ring gear 33 is connected to the second sun gear 21. The synchronizer 6 has three changeable connection positions, namely, the connection with the connection shaft 7, the connection with the shell 4 and the disconnection with the connection shaft 7 and the shell 4.
The transmission assembly includes a first state, a second state, and a third state.
In the first state, the motor 5 is in driving connection with the second planetary gear set 2, the torque output by the motor 5 can be transmitted to the second planetary gear set 2, and the second planetary gear set 2 is caused to finally output the first rotational speed, at which time the entire transmission system is in the first gear.
Specifically, in the first state, the synchronizer 6 is connected to the connecting shaft 7, and at this time, the third carrier 32 and the third sun gear 31 are connected to the uniform motor shaft 51, and the motor 5 drives the third carrier 32 and the third sun gear 31 to rotate, and the rotational speeds of the third carrier 32 and the third sun gear 31 are the same as those of the motor 5; the third planet carrier 32 and the third sun gear 31 rotate to drive the third planet gears to rotate, and then drive the third gear ring 33 to rotate; the third gear ring 33 rotates to drive the second sun gear 21 to rotate, the second sun gear 21 drives the second planet carrier 22 and the second gear ring 23 to rotate, the second gear ring 23 rotates to drive the first sun gear 11 to rotate, the first gear ring 13 is fixed, and the first sun gear 11 rotates to drive the first planet carrier 12 to rotate; at the same time, the second carrier 22 outputs the first rotational speed to the first wheel.
In the first state, the power transmission path is: the power output by the motor 5 is input from the third planet carrier 32 and the third sun gear 31, transmitted to the third gear ring 33 through the third planet gears, output from the third gear ring 33 to the second sun gear 21, and the second sun gear 21 transmits the power to the second planet carrier 22 and the second gear ring 23 through the second planet gears; the power output by the second ring gear 23 is transmitted to the first sun gear 11, then transmitted to the first carrier 12 through the first planet gears, and output from the first carrier 12 to the second wheel; at the same time, the power output from the second carrier 22 is transmitted to the first wheels.
In the second state, the motor 5 is in driving connection with the second planetary gear set 2, and the torque output by the motor 5 can be transmitted to the second planetary gear set 2, and the second planetary gear set 2 finally outputs a second rotation speed, so that the whole speed change system is in the second gear.
Specifically, in the second state, the synchronizer 6 is connected with the housing 4, at this time, the third planet carrier 32 is fixed, and the motor 5 drives the third sun gear 31 to rotate, drives the third planet gear to rotate, and further drives the third ring gear 33 to rotate; the third gear ring 33 rotates to drive the second sun gear 21 to rotate, the second sun gear 21 drives the second planet carrier 22 and the second gear ring 23 to rotate, the second gear ring 23 rotates to drive the first sun gear 11 to rotate, the first gear ring 13 is fixed, and the first sun gear 11 rotates to drive the first planet carrier 12 to rotate; at the same time, the second carrier 22 outputs the second rotational speed to the first wheel.
In the second state, the power transmission path is: the power output by the motor 5 is input from the third sun gear 31, transmitted to the third gear ring 33 through the third planetary gears, output from the third gear ring 33 to the second sun gear 21, and the second sun gear 21 transmits the power to the second planet carrier 22 and the second gear ring 23 through the second planetary gears; the power output by the second ring gear 23 is transmitted to the first sun gear 11, then transmitted to the first carrier 12 through the first planet gears, and output from the first carrier 12 to the second wheel; at the same time, the power output from the second carrier 22 is transmitted to the first wheels.
In the third state, the transmission path between the electric machine 5 and the second planetary gear set 2 is disconnected and torque rotational speed cannot be transmitted from the second planetary gear set 2 to the electric machine 5, at which time the entire transmission system is in the disconnected mode.
Specifically, in the third state, the synchronizer 6 is not connected to the connection shaft 7 and the housing 4, and at this time, the motor 5 does not operate in the two-drive mode corresponding to the four-drive vehicle type. The torque rotation speed transmitted from the first wheel end is transmitted to the second sun gear 21 through the second planet carrier 22, the torque rotation speed transmitted from the second wheel end is transmitted to the first sun gear 11 through the first planet carrier 12, and is transmitted to the second gear ring 23 from the first sun gear 11 and then transmitted to the second sun gear 21; the torque rotation speed output from the second sun gear 21 is transmitted to the third ring gear 33 and then to the third carrier 32. Since the motor 5 does not operate, the third sun gear 31 connected to the motor shaft 51 remains stationary, and the third carrier 32 idles according to the characteristics of the planetary gear set, and torque transmitted from the wheel end is released at the third carrier 32, so that torque rotation speed cannot be transmitted from the second planetary gear set 2 to the motor 5, reverse drag force to the motor 5 is avoided, and energy loss is reduced.
According to the integrated planetary transmission system provided by the embodiment of the application, the motor 5 can be connected or disconnected with the second planetary gear set 2 by switching the state of the transmission assembly, so that the transmission system can be freely switched among three working modes of a first gear, a second gear and a disconnection mode, and the motor 5 can be kept in a high power area by switching the gears, thereby saving oil consumption and improving the cruising ability of a vehicle.
Further, the transmission assembly further comprises a coupler 8, and the coupler 8 is connected with the shell 4; in the second state, the shifting device is connected to the coupling 8; in the third state, the gear shift device is disconnected from both the connecting shaft 7 and the coupling 8.
Specifically, the coupler 8 is fixed on the housing 4 and can be combined with the synchronizer 6, and by arranging the coupler 8, the connection between the synchronizer 6 and the housing 4 can be conveniently realized in the second state.
Further, the transmission assembly further comprises a shifting device, and the shifting device is connected with the gear shifting device and used for shifting the connection position of the gear shifting device so that the transmission assembly is switched to the first state, the second state or the third state.
Specifically, the shifting device can be a shifting piece, a shifting rod or other parts capable of shifting the position of the shifting device, and the shifting device can be conveniently shifted to change the connection position of the shifting device by arranging the shifting device, so that the transmission assembly can be switched among a first state, a second state and a third state, and the shifting and disconnecting functions of the whole speed changing system are realized.
Further, the speed change system further comprises a controller, wherein the controller is connected with the shifting device and used for controlling the shifting device to shift the gear shifting device so that the gear shifting device changes the connection position.
Specifically, the controller can control the shifting device to perform shifting action or stopping action so as to enable the gear shifting device to change the connection position of the gear shifting device, and finally automatic gear shifting of the whole speed changing system is achieved.
The present embodiment also provides a vehicle including the integrated planetary transmission system as described above.
Example two
Referring to fig. 3 and 4, the present embodiment provides an integrated planetary transmission system including a housing 4 and a motor 5, a first planetary gear set 1 and a second planetary gear set 2 provided inside the housing 4; a first output of the second planetary gear set 2 is connected to an input of the first planetary gear set 1; a transmission assembly is arranged between the motor 5 and the second planetary gear set 2, and the output end of the motor 5 is connected with the input end of the transmission assembly; the transmission assembly includes a first state, a second state, and a third state.
In the first state, the transmission assembly connects the motor 5 with the second planetary gear set 2, and enables the motor 5 to drive the second planetary gear set 2 to output a first rotation speed; in the second state, the transmission assembly connects the motor 5 with the second planetary gear set 2, and enables the motor 5 to drive the second planetary gear set 2 to output a second rotating speed; in the third state, the transmission assembly disconnects the second planetary gear set 2 from the motor 5.
A transmission assembly is arranged between the motor 5 and the second planetary gear set 2, which transmission assembly comprises a gear shifting device, a third planetary gear set 3 and a connecting shaft 7. The shifting device in this embodiment is a synchronizer 6.
In this embodiment, the specific structures of the first planetary gear set 1, the second planetary gear set 2 and the third planetary gear set 3 and the connection relationship between the first planetary gear set 1 and the second planetary gear set 2 are the same as those of the first embodiment, so that the detailed description is omitted herein, and the following description mainly aims at the differences from the first embodiment.
Specifically, referring to fig. 3, the connecting shaft 7 is connected to a motor shaft 51 of the motor 5, the motor shaft 51 is connected to the third sun gear 31, the third carrier 32 is fixedly connected to the housing 4, and the synchronizer 6 is connected to the second sun gear 21. The synchronizer 6 has three changeable connection positions, namely, the connection with the connection shaft 7, the connection with the third gear ring 33 and the disconnection with the connection shaft 7 and the third gear ring 33.
The transmission assembly includes a first state, a second state, and a third state.
In the first state, the motor 5 is in driving connection with the second planetary gear set 2, the torque output by the motor 5 can be transmitted to the second planetary gear set 2, and the second planetary gear set 2 is caused to finally output the first rotational speed, at which time the entire transmission system is in the first gear.
Specifically, in the first state, the synchronizer 6 is connected with the connecting shaft 7, at this time, the third sun gear 31 and the second sun gear 21 are both connected with the motor shaft 51, the motor 5 drives the third sun gear 31 and the second sun gear 21 to rotate synchronously, the third planet carrier 32 is connected with the housing 4 and kept stationary, and the third sun gear 31 rotates to drive the third gear ring 33 to rotate; simultaneously, the second sun gear 21 rotates to drive the second gear ring 23 and the second planet carrier 22 to rotate, the second gear ring 23 rotates to drive the first sun gear 11 to rotate, the first gear ring 13 is fixed with the shell 4, and the first sun gear 11 rotates to drive the first planet carrier 12 to rotate; at the same time, the second carrier 22 outputs the first rotational speed to the first wheel.
In the first state, the power transmission path is: the power output by the motor 5 is input from the third sun gear 31 and the second sun gear 21, the third sun gear 31 transmits the power to the third ring gear 33, and the third ring gear 33 idles to release the power; the power input from the second sun gear 21 is transmitted to the second carrier 22 and the second ring gear 23 through the second planetary gears; the power output by the second ring gear 23 is transmitted to the first sun gear 11, then transmitted to the first carrier 12 through the first planet gears, and output from the first carrier 12 to the second wheel; at the same time, the power output from the second carrier 22 is transmitted to the first wheels.
In the second state, the motor 5 is in driving connection with the second planetary gear set 2, and the torque output by the motor 5 can be transmitted to the second planetary gear set 2, and the second planetary gear set 2 finally outputs a second rotation speed, so that the whole speed change system is in the second gear.
Specifically, in the second state, the synchronizer 6 is connected to the third ring gear 33, and at this time, the motor 5 drives the third sun gear 31 to rotate, the third planet carrier 32 is connected to the housing 4 and remains stationary, and the third sun gear 31 rotates to drive the third ring gear 33 to rotate; the third gear ring 33 rotates to drive the second sun gear 21 to rotate, and the second sun gear 21 rotates to drive the second gear ring 23 and the second planet carrier 22 to rotate; the second gear ring 23 rotates to drive the first sun gear 11 to rotate, the first gear ring 13 is fixed with the shell 4, and the first sun gear 11 rotates to drive the first planet carrier 12 to rotate; at the same time, the second carrier 22 outputs the second rotational speed to the first wheel.
In the second state, the power transmission path is: the power output by the motor 5 is input from the third sun gear 31, transmitted to the third gear ring 33 through the third planetary gears, output from the third gear ring 33 to the second sun gear 21, and the second sun gear 21 transmits the power to the second planet carrier 22 and the second gear ring 23 through the second planetary gears; the power output by the second ring gear 23 is transmitted to the first sun gear 11, then transmitted to the first carrier 12 through the first planet gears, and output from the first carrier 12 to the second wheel; at the same time, the power output from the second carrier 22 is transmitted to the first wheels.
In the third state, the transmission path between the electric machine 5 and the second planetary gear set 2 is disconnected and torque rotational speed cannot be transmitted from the second planetary gear set 2 to the electric machine 5, at which time the entire transmission system is in the disconnected mode.
Specifically, in the third state, the synchronizer 6 is not connected to the connection shaft 7 and the housing 4, and at this time, the motor 5 does not operate in the two-drive mode corresponding to the four-drive vehicle type. The torque rotation speed transmitted from the first wheel end is transmitted to the second sun gear 21 through the second planet carrier 22, the torque rotation speed transmitted from the second wheel end is transmitted to the first sun gear 11 through the first planet carrier 12, and is transmitted to the second gear ring 23 from the first sun gear 11 and then transmitted to the second sun gear 21; the second sun gear 21 idles to release the torque rotation speed, so that the torque rotation speed transmitted from the wheel end cannot be transmitted to the motor 5, reverse dragging force to the motor 5 is avoided, and energy loss is reduced.
The present embodiment also provides a vehicle including the integrated planetary transmission system as described above.
It should be noted that, in the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described as different from other embodiments, and identical and similar parts between the embodiments are all enough to be referred to each other.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the application.
Claims (10)
1. An integrated planetary transmission system, comprising:
A housing and a motor, a first planetary gear set and a second planetary gear set disposed inside the housing;
The first output end of the second planetary gear set is connected with the input end of the first planetary gear set; a transmission assembly is arranged between the motor and the second planetary gear set, and the output end of the motor is connected with the input end of the transmission assembly;
The transmission assembly includes a first state, a second state, and a third state;
in the first state, the transmission assembly is connected with the motor and the second planetary gear set, and the motor drives the second planetary gear set to output a first rotating speed;
In the second state, the transmission assembly is connected with the motor and the second planetary gear set, and the motor drives the second planetary gear set to output a second rotating speed;
In the third state, the transmission assembly disconnects the second planetary gear set from the motor.
2. The integrated planetary transmission system of claim 1, wherein: the transmission assembly comprises a third planetary gear set, a gear shifting device and a connecting shaft; the connecting shaft is connected with the output end of the motor, the output end of the motor is connected with the first input end of the third planetary gear set, the gear shifting device is connected with the second input end of the third planetary gear set, and the output end of the third planetary gear set is connected with the input end of the second planetary gear set;
in the first state, the shifting device is connected with the connecting shaft;
In the second state, the shifter is connected to the housing;
in the third state, the gear shifting device is disconnected from the connecting shaft and the housing.
3. The integrated planetary transmission system of claim 2, wherein: the transmission assembly further comprises a coupler connected with the housing; in the second state, the shifter is connected to the coupling; in the third state, the shifter is disconnected from both the connecting shaft and the coupling.
4. The integrated planetary transmission system of claim 1, wherein: the transmission assembly comprises a third planetary gear set, a gear shifting device and a connecting shaft, the connecting shaft is connected with the output end of the motor, the output end of the motor is connected with the input end of the third planetary gear set, and the third planetary gear set is connected with the shell; the gear shifting device is connected with the input end of the second planetary gear set;
in the first state, the shifting device is connected with the connecting shaft;
in the second state, the shifter is connected to the output of the third planetary gear set;
In the third state, the shifter is disconnected from the connecting shaft and the output of the third planetary gear set.
5. The integrated planetary transmission system as claimed in any one of claims 1-4, wherein:
The first planetary gear set comprises a first sun gear, a first planet carrier, a first planet gear and a first gear ring; the first planet gears are arranged on the first planet carrier, the first planet gears are positioned between the first sun gear and the first gear ring, and the first planet gears are meshed with the first sun gear and the first gear ring at the same time;
The second planetary gear set comprises a second sun gear, a second planet carrier, a second planet wheel and a second gear ring; the second planet wheel is arranged on the second planet carrier, the second planet wheel is positioned between the second sun wheel and the second gear ring, and the second planet wheel is meshed with the second sun wheel and the second gear ring at the same time.
6. The integrated planetary transmission system of claim 5, wherein: the second planet carrier is connected with a first wheel, the second gear ring is connected with the first sun gear, the first planet carrier is connected with the second wheel, and the first gear ring is connected with the shell.
7. The integrated planetary transmission system as claimed in any one of claims 2-4, wherein: the transmission assembly further comprises a shifting device, wherein the shifting device is connected with the gear shifting device and used for shifting the connection position of the gear shifting device so that the transmission assembly is switched to the first state, the second state or the third state.
8. The integrated planetary transmission system of claim 7, wherein: the speed change system further comprises a controller, wherein the controller is connected with the shifting device and used for controlling the shifting device to shift the gear shifting device so that the gear shifting device changes the connection position.
9. The integrated planetary transmission system of claim 7, wherein: the gear shifting device is a synchronizer or a clutch.
10. A vehicle comprising an integrated planetary transmission system as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322528482.5U CN220923810U (en) | 2023-09-15 | 2023-09-15 | Integrated planetary speed change system and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322528482.5U CN220923810U (en) | 2023-09-15 | 2023-09-15 | Integrated planetary speed change system and vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN220923810U true CN220923810U (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322528482.5U Active CN220923810U (en) | 2023-09-15 | 2023-09-15 | Integrated planetary speed change system and vehicle |
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| Country | Link |
|---|---|
| CN (1) | CN220923810U (en) |
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2023
- 2023-09-15 CN CN202322528482.5U patent/CN220923810U/en active Active
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