CN220220384U - Range-extending hybrid power speed change system - Google Patents
Range-extending hybrid power speed change system Download PDFInfo
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- CN220220384U CN220220384U CN202321606404.6U CN202321606404U CN220220384U CN 220220384 U CN220220384 U CN 220220384U CN 202321606404 U CN202321606404 U CN 202321606404U CN 220220384 U CN220220384 U CN 220220384U
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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 relates to a range-extending hybrid power speed change system which comprises a range-extending mechanism, a speed change mechanism and a reversing mechanism, wherein the range-extending mechanism is in transmission connection with the speed change mechanism or the reversing mechanism, and the speed change mechanism or the reversing mechanism is in transmission connection with a front axle differential mechanism or a rear axle differential mechanism of a vehicle. The utility model realizes multiple modes of pure electric mode, engine mode, extended range mode, parallel mode and ECVT mode through the extended range mechanism, the speed change mechanism and the reversing mechanism, and can realize reverse gear in the pure electric mode, the engine mode, the parallel mode and the ECVT mode.
Description
Technical Field
The utility model relates to the technical field of automobiles, in particular to a range-extending hybrid power speed change system.
Background
At present, a hybrid transmission system in the industry can realize pure electric and engine direct drive and hybrid drive modes under the control of a motor and an engine, but the hybrid transmission system is generally realized by reversing a driving motor on other axles of a vehicle when the vehicle realizes reverse gear, so that the response of the vehicle reverse gear to various working conditions is limited, and particularly, the defect of the conventional hybrid transmission system is more prominent when the vehicle is in a state of being deficient in electricity and can not realize electric reverse gear.
Therefore, how to realize an extended range hybrid transmission system capable of performing reverse gear driving under a hybrid system with a multifunctional mode is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of the above, the present utility model is directed to a range-extending hybrid power transmission system to solve the problem that the existing hybrid power transmission system cannot meet the requirement for reverse gear under various working conditions.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an extended range hybrid transmission system comprising:
the device comprises a range extending mechanism, a speed changing mechanism and a reversing mechanism, wherein the range extending mechanism is in transmission connection with the speed changing mechanism or the reversing mechanism, and the speed changing mechanism or the reversing mechanism is in transmission connection with a front axle differential mechanism or a rear axle differential mechanism of a vehicle.
The utility model provides a range-extending hybrid power speed change system, which realizes multiple modes of pure electric mode, engine mode, range-extending mode, parallel mode and ECVT mode through a range-extending mechanism, a speed change mechanism and a reversing mechanism, and can realize reverse gear in the pure electric mode, the engine mode, the parallel mode and the ECVT mode.
Preferably, the range-extending mechanism comprises an engine, an electric motor, a first engagement element and a first planetary gear, wherein the engine and the electric motor are respectively in transmission connection with the first planetary gear, and the first engagement element is selectively engaged with a shell or the first planetary gear;
the transmission mechanism includes a second engagement element and a second planetary row, the second engagement element being selectively engaged with the housing or the second planetary row;
the reversing mechanism comprises a forward gear pair, a reverse gear pair and a third joint element, and the third joint element is in transmission connection with the forward gear pair or the reverse gear pair;
the first planetary gear row is in transmission connection with the second planetary gear row or the forward gear and the reverse gear pair.
Preferably, the motor further comprises an input shaft, the first planet row comprises a first sun gear, a first planet carrier and a first gear ring, the output end of the motor is connected with the first sun gear, one end of the input shaft is fixedly connected with the engine, the other end of the input shaft is fixedly connected with the first planet carrier, the first engagement element is fixedly arranged on the input shaft, the first engagement element is engaged with one side, the first planet carrier is fixedly connected with the shell, the first engagement element is engaged with the other side, and the first planet carrier is engaged with the sun gear.
Preferably, the planetary gear system further comprises an intermediate shaft, the second planetary gear comprises a second sun gear, a second planet carrier and a second gear ring, the second sun gear is in transmission connection with the first gear ring, the second planet carrier is connected with the intermediate shaft, the second engagement element is sleeved on the intermediate shaft and fixedly connected with the second gear ring, the second engagement element is engaged with one side and fixedly connected with the shell, the second engagement element is engaged with the other side, and the second gear ring is engaged with the second planet carrier.
Preferably, the transmission shaft is further included, the third engagement element is fixedly arranged on the intermediate shaft, the input gear of the forward gear pair and the input gear blank of the reverse gear pair are arranged on the intermediate shaft and are respectively positioned at two sides of the third engagement element, and the output gear of the forward gear pair and the output gear of the reverse gear pair are fixedly arranged on the transmission shaft and are correspondingly in transmission connection with the input gear of the forward gear pair and the input gear of the reverse gear pair respectively.
In another preferred mode, the device further comprises a transmission shaft, the third joint element is fixedly arranged on the transmission shaft, the output gear of the forward gear pair and the output gear of the reverse gear pair are arranged on the transmission shaft in a hollow mode and are respectively positioned on two sides of the third joint element, and the input gear of the forward gear pair and the input gear of the reverse gear pair are fixedly arranged on the intermediate shaft and are correspondingly in transmission connection with the output gear of the forward gear pair and the output gear of the reverse gear pair respectively.
Preferably, the gear further comprises an intermediate shaft, the first gear ring is in transmission connection with the intermediate shaft, the third joint element is fixedly arranged on the intermediate shaft, and the input gear of the forward gear pair and the input gear blank of the reverse gear pair are arranged on the intermediate shaft.
Preferably, the device further comprises a first transmission shaft and a second transmission shaft, the output gear of the forward gear pair and the output gear of the reverse gear pair are fixedly arranged on the first transmission shaft, the second planet row comprises a second sun gear, a second planet carrier and a second gear ring, the second sun gear is fixedly connected with the first transmission shaft, the second engagement element is sleeved on the second transmission shaft and fixedly connected with the second gear ring, the second engagement element is engaged with one side, the second gear ring is fixedly connected with the shell, the second engagement element is engaged with the other side, and the second gear ring is engaged with the second planet carrier.
Specifically, the forward gear pair further comprises an idler wheel assembly, the idler wheel assembly comprises an idler wheel shaft and an idler wheel, the idler wheel is fixedly arranged on the idler wheel shaft, the idler wheel is meshed with an input gear of the forward gear pair and an output gear of the reverse gear pair at the same time, and the input gear and the output gear of the reverse gear pair are meshed.
Preferably, the engine, the motor, the first planetary row and the second planetary row are coaxially arranged, or the engine, the motor and the first planetary row are coaxially arranged and spatially parallel to the second planetary row.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, illustrate and explain the utility model and are not to be construed as limiting the utility model. In the drawings:
fig. 1 is a schematic structural diagram of a range-extending hybrid power transmission system provided by the utility model.
FIG. 2 is a schematic diagram of another embodiment of a range-extending hybrid transmission system according to the present utility model;
FIG. 3 is a schematic structural diagram of a third embodiment of a range-extending hybrid transmission system according to the present utility model;
fig. 4 is a schematic structural diagram of a fourth embodiment of a range-extending hybrid power transmission system according to the present utility model.
Reference numerals illustrate:
1 extend range mechanism 11 first engagement element of engine 12
13 motor 14 first planetary gear set 2 speed change mechanism
21 second engagement element 22 second planetary row 3 reversing mechanism
31 forward gear pair 32 reverse gear pair 33 idler shaft
34 idler 4 input shaft 5 intermediate shaft
First sun gear of front axle differential mechanism 15 of 6 transmission shafts 7
16 first planet carrier 17 first gear ring 23 second sun gear
24 second planet carrier 25 second ring gear 35 third engagement element
8 casing 9-first drive shaft 10-second drive shaft
18 rear axle differential mechanism
Detailed Description
In addition, the embodiments of the present utility model and the features of the embodiments may be combined with each other without collision.
The present utility model will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The embodiment of the utility model provides a range-extending hybrid power speed change system which comprises a range-extending mechanism 1, a speed change mechanism 2 and a reversing mechanism 3, wherein the range-extending mechanism 1 is in transmission connection with the speed change mechanism 2 or the reversing mechanism 3, and the speed change mechanism 2 or the reversing mechanism 3 is in transmission connection with a front axle differential mechanism 7 or a vehicle rear axle differential mechanism 18. The range extender mechanism 1 enables the hybrid power transmission system to have a range extender power generation function, ensures continuous electric quantity supply of the vehicle, and meets the requirement of vehicle driving; when power is transmitted to the speed change mechanism 2, a low-speed gear or a high-speed gear is output according to different gears of the speed change mechanism, so that the requirements of the vehicle on the different gears are met. In order to realize that the vehicle can carry out reverse gear, a reversing mechanism is arranged, and power can be output to forward gear and reverse gear through the reversing mechanism after passing through the speed change mechanism, so that the reverse gear requirement of the vehicle is met.
Specifically, as shown in fig. 1, in the embodiment provided by the present utility model, the range-extending mechanism 1 includes an engine 11, a motor 13, a first engagement element 12 and a first planetary gear set 14, the engine 11 and the motor 13 are respectively in driving connection with the first planetary gear set 14, the first engagement element 12 is selectively engaged with the housing 8 or the first planetary gear set 14, when the first engagement element 12 is connected with the housing 8, one of the execution elements in the first planetary gear set 14 is braked, and the power output by the motor 13 is purely electric-driven through the first planetary gear set 14; when the first engagement element 12 is engaged with the first planetary gear set 14, the first planetary gear set 14 is linked, and the power output by the engine 11 drives the motor 13 to generate electricity through the first planetary gear set 14, so that a range-extending mode is realized; the transmission mechanism 2 includes a second engagement element 21 and a second planetary gear set 22, the second engagement element 21 is selectively engaged with the housing 8 or the second planetary gear set 22, when the second engagement element 21 is engaged with the housing 8, one of the actuators in the second planetary gear set 22 is braked, and at this time, the power transmitted to the second planetary gear set 22 is decelerated by the second planetary gear set 22 and then output a low gear; when the second engagement element 21 is engaged with the second planetary gear set 22, the second planetary gear set 22 performs linkage, and at this time, the power transmitted to the second planetary gear set 22 is directly output, thereby forming a high gear. The reversing mechanism 3 comprises a forward gear pair 31 and a reverse gear pair 32, the forward gear pair 31 is used for driving the vehicle to move forward after being transmitted to the reversing mechanism 3, and the reverse gear pair 32 is used for driving the vehicle to move backward, so that the reverse gear requirement of the vehicle is met, and the reverse gear can be still driven particularly under the condition of power shortage of the vehicle.
The present utility model provides a more preferable embodiment, as shown in fig. 1, further comprising an input shaft 4, a first planet carrier 14 comprises a first sun gear 15, a first planet carrier 16 and a first gear ring 17, an output end of a motor 13 is connected with the first sun gear 15, one end of the input shaft 4 is fixedly connected with an output end of an engine 11, the other end of the input shaft is fixedly connected with the first planet carrier 16, a first joint element 12 is fixedly arranged on the input shaft 4, based on the above, when the first joint element 12 is jointed to one side, the first planet carrier 16 is fixedly connected with a shell 8, and then the first planet carrier 16 is braked, and at the moment, the power output transmitted to the first planet carrier 14 by the motor 13 is purely electric; when the first engaging element 12 is engaged with the other side, the first planet carrier 16 is engaged with the first sun gear, at this time, the whole first planet row 14 is linked to form a whole, and at this time, the power output by the engine 11 drives the motor 13 to work through the first planet row 14 to generate electricity, so that a range-extending electricity generation mode is realized. The first engagement element in this embodiment may be a synchronizer, which is well known to the person skilled in the art, having a gear hub fixedly arranged on the input shaft 4 and a gear sleeve axially movable along the input shaft 4 for engaging the input shaft 4 with the housing 8 or the first sun gear 15 on both sides of the synchronizer, in this embodiment the input shaft 4 is fixedly connected with the first planet carrier 16, so that the input shaft 4 is engaged with the housing 8 or the first sun gear 15 on both sides of the synchronizer, i.e. the first planet carrier 16 is engaged with the housing 8 or the first sun gear 15 on both sides of the synchronizer.
On the basis of the scheme, the utility model provides a more preferable embodiment, as shown in fig. 1, the planetary gear transmission device further comprises an intermediate shaft 5, the second planet row 22 comprises a second sun gear 23, a second planet carrier 24 and a second gear ring 25, the second sun gear 23 is in transmission connection with the first gear ring 17, the second planet carrier 24 is in transmission connection with the intermediate shaft 5, the second gear ring 25 and a second joint element 21 are fixedly connected with the intermediate shaft 5, the second joint element 21 can axially move along the intermediate shaft 5 and is connected to one side, the second gear ring 25 is fixedly connected with the shell, the second gear ring 25 is braked, and power transmitted to the second planet row 22 by the first planet row 14 is slowed down and a low-speed gear is output; engaging the second ring gear 25 with the second carrier 24, with the other engaged, wherein the entire second planetary row 22 is linked to form a whole, wherein the power transmitted from the first planetary row 14 to the second planetary row 22 is 1:1, and a high gear is formed. The second engagement element in this embodiment may be a synchronizer, which is well known to those skilled in the art, having a gear hub fixedly connected to the second gear ring 25 and a hollow sleeve provided on the intermediate shaft 5, the hollow sleeve being axially movable along the intermediate shaft 5 to engage the second gear ring 5 with the housing 8 or the second planet carrier 24 on both sides of the synchronizer.
The present utility model also provides a more preferable embodiment, as shown in fig. 1, further comprising a transmission shaft, wherein a third joint element 35 is fixedly arranged on the intermediate shaft 5, the input gear of the forward gear pair 31 and the input gear of the reverse gear pair 32 are arranged on the intermediate shaft 5 in a hollow manner and are respectively positioned at two sides of the third joint element 35, the output gear of the forward gear pair 31 and the output gear of the reverse gear pair 32 are fixedly arranged on the transmission shaft 6, and the input gear of the forward gear pair 31 and the input gear of the reverse gear pair 32 are in transmission connection. When the third engagement element 35 moves axially to engage with the input gear of the forward gear pair 31, the power transmitted to the input gear of the forward gear pair 31 via the third engagement element 35 outputs a forward gear from the output gear of the forward gear pair 31, and drives the vehicle to move forward; when the third engagement element 35 moves axially to engage with the input gear of the reverse gear pair 32, power is transmitted to the input gear of the reverse gear pair 32 via the third engagement element 35, and reverse gear is output by the output gear of the reverse gear pair 32, driving the vehicle to reverse.
As a preferred alternative embodiment, as shown in fig. 2, the transmission shaft 6 is further included, the third engaging element 35 is fixedly arranged on the transmission shaft 6, the output gear of the forward gear pair 31 and the output gear of the reverse gear pair 32 are arranged on the transmission shaft 6 in a hollow manner and are respectively positioned at two sides of the third engaging element 35, and the input gear of the forward gear pair 31 and the input gear of the reverse gear pair 32 are fixedly arranged on the intermediate shaft 5 and are correspondingly in transmission connection with the output gear of the forward gear pair 31 and the output gear of the reverse gear pair 32.
As another preferred embodiment, as shown in fig. 4, the device further comprises an intermediate shaft, the first gear ring is in transmission connection with the intermediate shaft, the third joint element is fixedly arranged on the intermediate shaft, and the input gear of the forward gear pair and the input gear blank of the reverse gear pair are arranged on the intermediate shaft.
Based on the above, more preferably, the device further comprises a first transmission shaft and a second transmission shaft, the output gear of the forward gear pair and the output gear of the reverse gear pair are fixedly arranged on the first transmission shaft, the second planet row comprises a second sun gear, a second planet carrier and a second gear ring, the second sun gear is fixedly connected with the first transmission shaft, the second engagement element is sleeved on the second transmission shaft and is fixedly connected with the second gear ring, the second gear ring is fixedly connected with the shell when the second engagement element is engaged to one side, and the second engagement element is engaged to the other side.
In order to ensure the output of the forward gear, the utility model also provides a specific embodiment, the forward gear pair 31 further comprises an idler wheel assembly, the idler wheel assembly comprises an idler wheel shaft 33 and an idler wheel 34, the idler wheel 34 is meshed with an input gear and an output gear of the forward gear pair 31 at the same time, the change of the power transmission direction is realized, and the output of the forward gear is ensured.
In the embodiments provided by the present utility model, as shown in fig. 1, 2, 3 and 4, the engine, the motor, the first planetary row and the second planetary row are coaxially arranged, or the engine, the motor and the first planetary row are coaxially arranged and are parallel to each other between the second planetary rows.
The extended-range hybrid power speed change system provided by the utility model can realize a plurality of modes including a pure electric mode, an ECVT mode, an extended-range mode, an engine direct drive mode and a strong hybrid mode, and the working mode of each mode is as follows (taking fig. 1 as an example):
1. pure electric mode:
the first engagement element 12 is fixedly connected with the housing 8, the first planet carrier 16 is stationary, the output of the motor 13 is connected with the first sun gear 15, the motor 13 outputs power to the first sun gear 15, the power is transferred to the first ring gear 17 through the interaction of gears inside the first planet row 14, and thus to the second sun gear 23, and different gears are realized through the selection of the second engagement element 21. Wherein when the second engagement element 21 is selectively connected with the housing 8, power is transmitted from the second sun gear 23 to the second planet carrier 24, achieving a low gear ratio; when the second engagement element 21 is selectively connected with the second carrier 24, the second sun gear 23, the second carrier 24 and the second ring gear 25 are integrated, and power is transmitted from the second sun gear 23 to the second carrier 24, achieving a high gear speed ratio. The power is transmitted from the second planet carrier 24 to the intermediate shaft 5 and thus to the third coupling element 35, whereby a different gear is achieved by the selection of the third coupling element 35. Wherein, when the third engagement element 35 is selectively connected with the input gear of the forward gear pair 31, power is transmitted from the input gear of the forward gear pair 31 to the output gear of the forward gear pair 31, and thus to the drive shaft 6, thereby realizing the pure electric mode forward gear; when the third engagement element is selectively connected with the input gear of the reverse gear pair 32, power is transmitted from the third engagement element 35 to the output gear of the reverse gear pair 32 and thus to the propeller shaft 6, achieving the reverse gear in the pure mode. In addition, the motor can reverse to realize electric reverse gear.
2. ECVT mode:
when the first engagement element 12 is not engaged and the engine 11 and the motor 13 act on the first carrier 16 and the first sun gear 15, respectively, the output power of the engine 11 is transmitted to the first carrier 16 through the input shaft 4, so that the power is transmitted to the first sun gear 15 and the first ring gear 17, respectively, through the internal gear engagement of the first row of gears 14: a part of power is transmitted to the motor 13 by the first sun gear 15, and the motor 13 is controlled by the motor controller to generate power; another part of the power is transmitted from the first ring gear 17 to the second sun gear 23, and a different gear is achieved by the selection of the second engagement element 21. Wherein when the second engagement element 21 is selectively connected with the housing 8, power is transmitted from the second sun gear 23 to the second planet carrier 24, achieving a low gear ratio; when the second engagement element 21 is selectively connected with the second carrier 24, the second sun gear 23, the second carrier 24 and the second ring gear 25 are integrated, and power is transmitted from the second sun gear 23 to the second carrier 24, achieving a high gear speed ratio. The power is transmitted from the second planet carrier 24 to the intermediate shaft 5 and thus to the third engagement element 35, whereby the gear selection is achieved by selection of the third engagement element 35. Wherein, when the third engagement element 35 is selectively connected with the input gear of the forward gear pair 31, power is transmitted from the third engagement element 35 to the output gear of the forward gear pair 31, and thus to the propeller shaft 6, thereby realizing the ECVT mode forward gear; when the third engagement element 35 is selectively connected with the input gear of the reverse gear pair 32, power is transmitted from the third engagement element 35 to the output gear of the reverse gear pair 32 and thus to the propeller shaft 6, achieving the ECVT mode reverse gear. In particular, when the reverse gear by the motor cannot be realized in the state of vehicle power shortage, the normal reverse gear of the vehicle can be ensured in the mode.
3. Range extending mode:
the first engagement element 12 is engaged and connected with the first sun gear 15, so that the first carrier 16 and the first sun gear 15 are fixedly connected, and the first sun gear 15, the first carrier 16 and the first ring gear 17 are integrated, and the power of the engine 11 is input to the first carrier 17 and is transmitted to the first sun gear 15, so that the electric motor 13 generates electric power. At this time, the second engagement element 21 and the third engagement element 35 are not connected.
4. Pure engine direct drive mode:
the first engagement element 12 is engaged and connected with the first sun gear 15, so that the first carrier 16 and the first sun gear 15 are fixedly connected, and the first sun gear 15, the first carrier 16 and the first ring gear 17 are integrated, and the power of the engine 11 is input to the first carrier 16, is transmitted to the first ring gear 17, is transmitted to the second sun gear 23 from the first ring gear 17, and different gears are realized through the selection of the second engagement element 21. Wherein when the second engagement element 21 is selectively connected with the housing 8, power is transmitted from the second sun gear 23 to the second planet carrier 24, achieving a low gear ratio; when the second engagement element 21 is selectively connected with the second carrier 24, the second sun gear 23, the second carrier 24 and the second ring gear 25 are integrated, and power is transmitted from the second sun gear 23 to the second carrier 24, achieving a high gear speed ratio. Further, the power is transmitted from the second carrier 24 to the intermediate shaft 5 and thus to the third engagement element 35, and the gear selection is achieved by the selection of the third engagement element 35. When the third engagement element 35 is selectively connected with the input gear of the forward gear pair 31, power is transmitted from the third engagement element 35 to the output gear of the forward gear pair 31 and thus to the propeller shaft 6, and the direct drive forward gear in the engine-only mode is realized. When the third engagement element 35 is selectively connected with the input gear of the reverse gear pair 32, power is transmitted from the third engagement element 35 to the output gear of the reverse gear pair 32 and thus to the propeller shaft 6, achieving the pure engine direct drive mode reverse gear.
5. Strong mixing mode:
the first engagement element 12 is engaged and connected with the first sun gear 15, so that the first planet carrier 16 and the first sun gear 15 are fixedly connected, the first sun gear 15, the first planet carrier 16 and the first gear ring 17 are integrated, power of the engine 11 is input to the first planet carrier 16, power of the motor 13 is input to the first sun gear 15, the power of the motor 13 is coupled with the power of the first sun gear 15, the power is transmitted to the first gear ring 17, the first gear ring 17 transmits the second sun gear 23, and different gears are realized through selection of the second engagement element 21. Wherein when the second engagement element 21 is selectively connected with the housing 8, power is transmitted from the second sun gear 23 to the second planet carrier 24, achieving a low gear ratio; when the second engagement element 21 is selectively connected with the second carrier 24, the second sun gear 23, the second carrier 24 and the second ring gear 25 are integrated, and power is transmitted from the second sun gear 23 to the second carrier 24, achieving a high gear speed ratio. The power is transmitted from the second planet carrier 24 to the intermediate shaft 5 and thus to the third engagement element 35, whereby the gear selection is achieved by selection of the third engagement element 35. When the third engagement element 35 is selectively connected with the input gear of the forward gear pair 31, the power is transmitted from the third engagement element 35 to the output gear of the forward gear pair 31, and thus to the transmission shaft 6, so as to realize the direct drive forward gear in the strong hybrid mode. When the third engagement element 35 is selectively connected with the input gear of the reverse gear pair 32, power is transmitted from the third engagement element 35 to the output gear of the reverse gear pair 31 and thus to the propeller shaft 6, achieving a strong-mixing mode reverse gear.
When none of the first engagement element 12, the second engagement element 21 and the third engagement element 35 are connected, the engine 11 and the motor 13 are not power-input, and the system is in a disconnected state, and no power is transmitted.
The range-extending hybrid power system provided by the utility model can be applied to a vehicle, so that the vehicle can realize a pure electric mode, an ECVT mode, a range-extending mode, an engine direct drive mode and a strong hybrid mode, and the vehicle is ensured to realize reverse gear, especially in a state of power shortage, the vehicle can be enabled to normally perform reverse gear in the ECVT mode, and the capability of the vehicle for coping with various working conditions is improved.
The foregoing description of the preferred embodiments of the utility model 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 utility model.
Claims (10)
1. An extended range hybrid transmission system, comprising: the device comprises a range extending mechanism, a speed changing mechanism and a reversing mechanism, wherein the range extending mechanism is in transmission connection with the speed changing mechanism or the reversing mechanism, and the speed changing mechanism or the reversing mechanism is in transmission connection with a front axle differential mechanism or a rear axle differential mechanism of a vehicle.
2. The range-extending hybrid transmission system of claim 1, wherein the range-extending mechanism comprises an engine, an electric machine, a first engagement element, and a first planetary gear, the engine and electric machine being drivingly connected to the first planetary gear, respectively, the first engagement element being selectively engaged with either the housing or the first planetary gear;
the transmission mechanism includes a second engagement element and a second planetary row, the second engagement element being selectively engaged with the housing or the second planetary row;
the reversing mechanism comprises a forward gear pair, a reverse gear pair and a third joint element, and the third joint element is in transmission connection with the forward gear pair or the reverse gear pair;
the first planetary gear row is in transmission connection with the second planetary gear row or the forward gear and the reverse gear pair.
3. The range-extending hybrid transmission system of claim 2, further comprising an input shaft, wherein the first row of planets comprises a first sun gear, a first planet carrier, and a first ring gear, wherein the output end of the electric machine is connected to the first sun gear, one end of the input shaft is fixedly connected to the engine, the other end is fixedly connected to the first planet carrier, the first engagement element is fixedly disposed on the input shaft, the first engagement element engages the first planet carrier with the housing fixedly connected to one side, and the first engagement element engages the sun gear to the other side.
4. A range-extending hybrid transmission system as recited in claim 3 further comprising an intermediate shaft, said second planetary row including a second sun gear, a second planet carrier, and a second ring gear, said second sun gear being drivingly connected to said first ring gear, said second planet carrier being connected to said intermediate shaft, said second engagement member being disposed over said intermediate shaft and fixedly connected to said second ring gear, said second engagement member being engaged on one side with said second ring gear being fixedly connected to said housing, said second engagement member being engaged on the other side with said second planet carrier.
5. The range-extending hybrid transmission system according to claim 4, further comprising a transmission shaft, wherein the third engagement element is fixedly disposed on the intermediate shaft, the input gear of the forward gear pair and the input gear of the reverse gear pair are disposed on the intermediate shaft and are disposed on both sides of the third engagement element, respectively, and the output gear of the forward gear pair and the output gear of the reverse gear pair are fixedly disposed on the transmission shaft and are correspondingly in driving connection with the input gear of the forward gear pair and the input gear of the reverse gear pair, respectively.
6. The range-extending hybrid transmission system according to claim 4, further comprising a transmission shaft, wherein the third engagement element is fixedly disposed on the transmission shaft, the output gear of the forward gear pair and the output gear of the reverse gear pair are disposed on the transmission shaft and are disposed on both sides of the third engagement element, respectively, and the input gear of the forward gear pair and the input gear of the reverse gear pair are fixedly disposed on the intermediate shaft and are correspondingly in driving connection with the output gear of the forward gear pair and the output gear of the reverse gear pair, respectively.
7. A range-extending hybrid transmission system in accordance with claim 3, further comprising an intermediate shaft, said first ring gear being drivingly connected to said intermediate shaft, said third engagement element being fixedly disposed on said intermediate shaft, said input gear of said forward gear pair and said input gear of said reverse gear pair being blank disposed on said intermediate shaft.
8. The range-extending hybrid transmission system according to claim 7, further comprising a first transmission shaft and a second transmission shaft, wherein the output gear of the forward gear pair and the output gear of the reverse gear pair are fixedly disposed on the first transmission shaft, the second planetary gear row comprises a second sun gear, a second planet carrier and a second ring gear, the second sun gear is fixedly connected with the first transmission shaft, the second engagement element is sleeved on the second transmission shaft and is fixedly connected with the second ring gear, the second engagement element is fixedly connected with the housing toward one side, the second engagement element is combined toward the other side, and the second ring gear is engaged with the second planet carrier.
9. The range-extending hybrid transmission system of claim 5 or claim 6 or claim 7, wherein the forward gear pair further comprises an idler assembly comprising an idler shaft and an idler fixedly disposed on the idler shaft, the idler meshing with both the input gear of the forward gear pair and the output gear of the forward gear pair, and the input gear of the reverse gear pair and the output gear.
10. The extended range hybrid transmission system of claim 2, wherein the engine, the motor, the first planetary row and the second planetary row are coaxially arranged, or the engine, the motor and the first planetary row are coaxially arranged and spatially parallel with the second planetary row.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321606404.6U CN220220384U (en) | 2023-06-21 | 2023-06-21 | Range-extending hybrid power speed change system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321606404.6U CN220220384U (en) | 2023-06-21 | 2023-06-21 | Range-extending hybrid power speed change system |
Publications (1)
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