CN211519237U - Hybrid power transmission device with single planet row coupled with double motors - Google Patents
Hybrid power transmission device with single planet row coupled with double motors Download PDFInfo
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- CN211519237U CN211519237U CN201922216529.8U CN201922216529U CN211519237U CN 211519237 U CN211519237 U CN 211519237U CN 201922216529 U CN201922216529 U CN 201922216529U CN 211519237 U CN211519237 U CN 211519237U
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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 hybrid transmission of single planet row coupling bi-motor solves current heavy hybrid power system and needs to adopt large-power motor, the axial dimension is long, problem with high costs. The device comprises an engine, a clutch, a first transmission shaft, a first motor, a first sliding sleeve, a second sliding sleeve, a planet row assembly, a second transmission shaft, a second motor, a first transmission shaft, a transmission and an output shaft; the engine is connected with the first transmission shaft through the clutch; the output shaft is connected with the second transmission shaft through a speed changer and a speed changer shaft; the first motor is connected with the first transmission shaft, the second motor is connected with the second transmission shaft, and the first transmission shaft, the second transmission shaft, the first transmission shaft and the output shaft are coaxially arranged; the planet row component comprises a sun gear, a planet gear, an outer gear ring and a planet carrier; the sun gear is connected with the first transmission shaft, and the outer gear ring is connected with the second transmission shaft; the first sliding sleeve and the second sliding sleeve are respectively meshed with the planet wheel and the outer gear ring.
Description
Technical Field
The utility model relates to a power transmission device, concretely relates to hybrid transmission device of single planet row coupling bi-motor.
Background
In 1997, the first Prius hybrid vehicles were introduced by the japan Toyota automobile manufacturing company, and the latest fourth Prius was introduced by 2015, all of them adopt the THS power splitting structure, which mainly includes an engine, a generator MG1, a motor MG2, a single planetary power coupling system, etc., the system directly transmits most of the torque of the engine to the output shaft, and transmits a small part of the torque to a motor MG1 for power generation, and the electric energy generated by the motor MG1 is used for battery charging or driving the motor MG2 according to the instruction, so as to increase the driving force. The hybrid system can realize that the motor MG2 drives the pure electric operation mode alone, and the engine, the generator MG1 and the motor MG2 drive the hybrid power operation mode together, and the structure can lead the engine to be always in a high-efficiency area or a low-emission area by adjusting the torque and the rotating speed of the motor MG1, but the structure adopts a single planet row mode, so that the reduction ratio is low, and the requirements on the rotating speed, the torque and the like of the motor are higher.
The AVL company provides a double-planet-row double-shaft hybrid power transmission device (DHT framework) sharing an outer gear ring, which mainly comprises an engine, a first motor, a second motor and an output shaft, and also comprises a first planet row and a second planet row which are positioned between the first motor and the second motor, wherein the first planet row and the second planet row are connected through the outer gear ring, the first planet row is connected with the first motor, the second planet row is connected with the second motor, the engine is connected with the first planet row through a first transmission shaft, the output shaft is connected with the outer gear ring through a second transmission shaft, and the first transmission shaft and the second transmission shaft are coaxially arranged. The double-planet-row double-shaft arrangement mode sharing the outer gear ring saves arrangement space and improves transmission efficiency, but when the structure is used for transmitting large torque, the second motor bears higher rotating speed and torque, and the requirements on the motors and the cost of the whole transmission system are increased.
At present, the heavy hybrid power tractor technology has just started, a P2 framework becomes a mainstream framework of a current heavy hybrid power tractor, the P2 framework mainly comprises an engine, a clutch, a motor and a transmission to form a parallel hybrid power system, namely, the motor is arranged between the clutch and the transmission, the power assembly is simply connected in this way, but the axial size of the high-power motor is too long, the heavy tractor needs to be matched with a multi-gear 12/16-gear transmission, the length of the power assembly is too large, the whole vehicle arrangement is not facilitated, when the heavy tractor is matched with the heavy commercial vehicle, the high-power motor needs to be adopted, the gear requirements of the transmission are high, and the.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the existing heavy hybrid power system needs to adopt a high-power motor, has long axial dimension and high cost, and providing a hybrid power transmission device with a single planet row and double motors.
In order to achieve the above purpose, the technical scheme of the utility model is that:
a hybrid power transmission device with a single planet row coupled with double motors comprises an engine, a clutch, a first transmission shaft, a first motor, a first sliding sleeve, a second sliding sleeve, a planet row assembly, a second transmission shaft, a second motor, a first transmission shaft, a transmission and an output shaft; the engine is connected with the first transmission shaft through a clutch; the output shaft is connected with the second transmission shaft through a speed changer and a speed changer shaft; the first motor is connected with the first transmission shaft, the second motor is connected with the second transmission shaft, and the first transmission shaft, the second transmission shaft, the first transmission shaft and the output shaft are coaxially arranged; the planet row assembly is positioned between the first motor and the second motor and comprises a sun gear, a planet gear, an outer gear ring and a planet carrier; the sun gear is connected with the first transmission shaft; the planet gear is arranged on the planet carrier, arranged along the circumferential direction of the sun gear and meshed with the sun gear to realize power transmission; the outer gear ring is positioned on the outer side of the planet gear, is meshed with the planet gear and is connected with the second transmission shaft; the first sliding sleeve and the second sliding sleeve are positioned between the first motor and the planet row assembly, and the first sliding sleeve is respectively meshed with the planet wheel and the outer gear ring and is used for realizing the rotation of the planet wheel and the outer gear ring at different rotating speeds; the second sliding sleeve is meshed with the planet wheel and the outer gear ring respectively and used for locking the planet wheel and the outer gear ring to achieve the same rotating speed of the planet wheel and the outer gear ring.
Further, the first motor and the planet bar assembly are integrated within a housing.
Further, the first motor, the planet row assembly and the second motor are integrated within a housing.
Further, the second motor is in meshed connection with the second transmission shaft through splines.
Further, the first motor is in meshed connection with the first transmission shaft through a spline.
Further, the output shaft is connected with the transmission through a coupling.
Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:
1. the utility model provides a hybrid transmission device divide into two small motor with big motor power, has reduced the power of single motor, shortens motor axial dimensions, reduces motor cost, and the planet row can have two gear speed ratios through the meshing in the sliding sleeve, selects the derailleur of less gear to obtain more gear drive ratios, matches in a flexible way, and the covering is wide.
2. The utility model provides a hybrid transmission can further arrange single planet with the bi-motor is integrated, the compression axial dimensions of bigger degree, make whole car arrange more nimble, compact, compare in P2 framework, the more effectual loss that reduces the engine at the wheel limit of coaxial single planet row coupling bi-motor's structure effectively improves the rate of economizing on fuel, with higher speed the cost recovery, this structure can be used for hybrid system and pure electric system in a flexible way.
Drawings
Fig. 1 is a schematic layout diagram of a hybrid transmission device with a single planet row coupled with two motors according to the present invention.
Reference numerals: 1-engine, 2-clutch, 3-first transmission shaft, 4-first electric machine, 5-first sliding sleeve, 6-second sliding sleeve, 7 a-sun gear, 7 b-planet gear, 8-external gear ring, 9-planet carrier, 10-second transmission shaft, 11-second electric machine, 12-transmission shaft, 13-transmission, 14-output shaft, 15-shell.
Detailed Description
The present invention will be described in further detail with reference to the following drawings and specific embodiments.
The utility model provides a single planet row coupling bi-motor's hybrid transmission, the device are compact structure, the cost is lower, improve the hybrid transmission who economizes on fuel the rate and reduce the emission, are applicable to big, medium and small freight train, passenger train, also can be used to pure electric system.
As shown in fig. 1, the utility model provides a hybrid transmission of two motors of single planet row coupling includes engine 1, clutch 2, first transmission shaft 3, secondary drive axle 10, a derailleur 12, output shaft 14, first motor 4, second motor 11, derailleur 13, casing 15, is located the planet row subassembly between first motor 4 and the second motor 11, and is located first sliding sleeve 5 and the second sliding sleeve 6 between first motor 4 and the planet row.
The engine 1 is connected with a first transmission shaft 3 through a clutch 2; the output shaft 14 is connected with the second transmission shaft 10 through the transmission 13 and the transmission shaft 12; the first motor 4 is connected with the first transmission shaft 3, the second motor 11 is connected with the second transmission shaft 10, and the first transmission shaft 3, the second transmission shaft 10, the transmission shaft 12 and the output shaft 14 are coaxially arranged. The planet row assembly is positioned between the first motor 4 and the second motor 11 and comprises a sun gear 7a, a planet gear 7b, an outer gear ring 8 and a planet carrier 9; the sun gear 7a is connected with the first transmission shaft 3, and the planet gear 7b is arranged on the planet carrier 9, is arranged along the circumferential direction of the sun gear 7a, and is meshed with the sun gear 7a to realize power transmission; the outer ring gear 8 is located outside the planet wheels 7b, meshes with the planet wheels 7b and is connected with a second transmission shaft 10. The first sliding sleeve 5 and the second sliding sleeve 6 are positioned between the first motor 4 and the planet row assembly, and the first sliding sleeve 5 is respectively meshed with the planet wheel 7b and the outer gear ring 8 and is used for realizing the rotation of the planet wheel 7b and the outer gear ring 8 at different rotating speeds; the second sliding sleeve 6 is respectively meshed with the planet wheel 7b and the outer gear ring 8 and used for locking the planet wheel 7b and the outer gear ring 8, and the rotation speeds of the planet wheel 7b and the outer gear ring 8 are the same.
Specifically, the second motor 11 is engaged with the second transmission shaft 10 through a spline, the first motor 4 is engaged with the first transmission shaft 3 through a spline, and the output shaft 14 is connected with the transmission 13 through a coupling.
The utility model provides an among the hybrid transmission of single planet row coupling bi-motor, engine 1 passes through clutch 2, first transmission shaft 3 and first motor 4 link to each other, second motor 11 is arranged the subassembly with the planet and is connected through second transmission shaft 10, derailleur 13 is connected with second motor 11 through a derailleur axle 12, first transmission shaft 3, second transmission shaft 10, a derailleur axle 12 and 14 coaxial arrangements of output shaft, outer ring gear 8 and second motor 11 link to each other through second transmission shaft 10, sun gear 7a links to each other with the rotor of first motor 4 through first transmission shaft 3, be equipped with first sliding sleeve 5 and second sliding sleeve 6 between first motor 4 and the planet row subassembly; the structure can be integrated in two ways: (1) a first integrated form: the first motor 4 is integrated with the planet row assembly, and further comprises a first motor 4 and a shell 15 surrounded by the planet row assembly; (2) a second integrated form: the first electric machine 4, the planet bar assembly and the second electric machine 11 are integrated, and will also comprise a housing 15 enclosed by the first electric machine 4, the planet bar assembly and the second electric machine 11.
The utility model provides a hybrid power transmission of single planet row coupling bi-motor passes through bi-motor and single planet row coupling, makes the power assembly framework compacter, compares traditional P2 framework, has further compressed the axial dimensions of power assembly, has improved the integration degree of device to a certain extent; the double motors can divide a high-power motor into two smaller-power motors, the speed changer in the device reduces the rotating speed change range and the torque requirement of the second motor, and the overall requirement on the two motors is low.
The transmission gears of the device can be flexibly matched, different speed ratios and torques can meet the requirements of the whole vehicle on power performance and economy under various working conditions, in addition, the planetary row structure and the sliding sleeve are matched to enable the planetary row structure to have two gear speed ratios, the 12/16 gear speed ratio can be realized by matching an 6/8 gear transmission, the vehicle type and the working condition which can be met only by using an 12/16 gear transmission in the original P2 framework can be met by using a 6/8 gear transmission in the device, the adaptation range is wide, the structure of the transmission device is more compact, the axial size is shorter, the mass is small, the cost is reduced, and the arrangement space is optimized; in the working mode, the torques of the three inputs of the first motor, the second motor and the engine are coupled and then transmitted to the output end, the combination of different working modes and states of the three inputs can generate various different output modes, and the planetary row structure can enable the engine to be directly connected with a load, so that the transmission efficiency is improved, the wheel edge loss is reduced, the oil saving rate is improved, and the emission is reduced.
The utility model discloses in, the torque coupling of the three input of engine, first motor, second motor passes to the output shaft through the planet row and derailleur respectively, and the different mode of operation of three input and the combination of state can produce the output mode of multiple difference, and the concrete appearance is:
1) purely electric mode drive
The single planet row is connected with double motors in front and back, when the clutch 2 is separated, the connection between the engine 1 and the first motor 4 is disconnected, and the motor is the only power source of the whole vehicle. When the second motor 11 is driven, power is transmitted to the transmission 13 through the transmission shaft 12 by the second motor 11, the transmission 13 amplifies the torque in proportion to the speed ratio after being selected to a proper gear through the whole vehicle control, and then the amplified torque is transmitted to the output shaft 14 to drive the whole vehicle to meet the current demand working condition.
When the power of the second motor 11 is not enough to provide the power required by the whole vehicle, the first motor 4 is involved, namely, the dual-motor common driving mode is adopted, at the moment, the torque of the first motor 4 is transmitted and output through the rotor, the sun gear 7a, the planet gear 7b and the outer gear ring 8, the torque is coupled with the torque of the second motor 11 and then is input into the transmission 13 through the transmission shaft 12, the transmission 13 amplifies the torque coupled by the dual motors in proportion, the speed ratio of the transmission 13 can be amplified in proportion by the planet gear, the rotating speeds of the transmission shaft 12 and the output shaft 14 can be changed by changing the torque and the rotating speed of the two motors in the power transmission process, the operation is convenient and strong, the dual motors output the torque externally, the acceleration performance is good, and the design requirements and the.
2) Hybrid parallel drive
When the clutch 2 is engaged, the engine 1 is connected with the first motor 4, the first sliding sleeve 5 is opened at the original position, the second sliding sleeve 6 is engaged to lock the planet wheel 7b and the outer gear ring 8, the engine 1, the first motor 4 and the second motor 11 work, the rotation speed of the planet wheel 7b is the same as that of the outer gear ring 8, the torque of the engine 1 is directly transmitted to a shaft 12 of the transmission, the first motor 4 and the second motor 11 can be used as auxiliary power, the torques of the two motors are coupled with the torque of the engine 1 after being converged to form an output mode of three power output simultaneously, the auxiliary power output by the motors can ensure that the engine 1 always works in the best working state, the emission is reduced, the fuel saving rate is improved, the interruption of the vehicle in the running is ensured, the suspension feeling is reduced, and the driving comfort is.
3) Purely engine 1 drive
When the clutch 2 is combined, the first sliding sleeve 5 is opened at the original position, the second sliding sleeve 6 is meshed to lock the planet wheel 7b and the outer gear ring 8, the rotation speed of the planet wheel 7b is the same as that of the outer gear ring 8, the first motor 4 and the second motor 11 idle, the torque of the engine 1 is directly transmitted to a shaft 12 of the transmission, and at the moment, the whole vehicle power system is equivalent to a traditional fuel vehicle, the transmission efficiency is high, and the power performance of the whole vehicle is good.
The utility model provides a hybrid transmission of coupling bi-motor is arranged to single planet divides into two small motor with big motor power, has reduced the power of single motor, shortens motor axial dimensions, reduces motor cost, and the planet is arranged and can has two gear speed ratios through the meshing in the sliding sleeve, selects less gear derailleur 13 can obtain more gear drive ratios, matches in a flexible way, and the covering is wide.
The device provided by the utility model can further arrange single planet with the bi-motor is integrated, the compression axial dimensions of bigger degree, make whole car arrange more nimble, compact, compare in P2 framework, the more effectual loss that reduces the engine of structure of coaxial single planet row coupling bi-motor effectively improves the rate of economizing on fuel, with higher speed the cost recovery, this structure can be used for hybrid system and pure electric system in a flexible way.
Claims (6)
1. A hybrid power transmission device with a single planet row coupled with double motors is characterized in that: the transmission device comprises an engine (1), a clutch (2), a first transmission shaft (3), a first motor (4), a first sliding sleeve (5), a second sliding sleeve (6), a planet row assembly, a second transmission shaft (10), a second motor (11), a transmission shaft (12), a transmission (13) and an output shaft (14);
the engine (1) is connected with the first transmission shaft (3) through the clutch (2);
the output shaft (14) is connected with the second transmission shaft (10) through a transmission (13) and a transmission shaft (12);
the first motor (4) is connected with the first transmission shaft (3), the second motor (11) is connected with the second transmission shaft (10), and the first transmission shaft (3), the second transmission shaft (10), the transmission shaft (12) and the output shaft (14) are coaxially arranged;
the planet row assembly is positioned between the first motor (4) and the second motor (11), and comprises a sun gear (7a), a planet gear (7b), an outer gear ring (8) and a planet carrier (9); the sun gear (7a) is connected with the first transmission shaft (3); the planet gear (7b) is arranged on the planet carrier (9), arranged along the circumferential direction of the sun gear (7a) and meshed with the sun gear (7a) to realize power transmission; the outer gear ring (8) is positioned on the outer side of the planet wheel (7b), is meshed with the planet wheel (7b) and is connected with a second transmission shaft (10);
the first sliding sleeve (5) and the second sliding sleeve (6) are located between the first motor (4) and the planet row assembly, and the first sliding sleeve (5) is respectively meshed with the planet wheel (7b) and the outer gear ring (8) and is used for realizing the rotation of the planet wheel (7b) and the outer gear ring (8) at different rotating speeds; the second sliding sleeve (6) is meshed with the planet wheel (7b) and the outer gear ring (8) respectively and used for locking the planet wheel (7b) and the outer gear ring (8) so that the rotation speeds of the planet wheel (7b) and the outer gear ring (8) are the same.
2. The single planet row coupled dual motor hybrid transmission as defined in claim 1, wherein: the first electric machine (4) and the planet row assembly are integrated in a housing (15).
3. The single planet row coupled dual motor hybrid transmission as defined in claim 1, wherein: the first motor (4), the planet row assembly and the second motor (11) are integrated in a housing (15).
4. The single planet row coupled dual motor hybrid transmission as claimed in claim 1, 2 or 3, wherein: and the second motor (11) is in meshed connection with the second transmission shaft (10) through a spline.
5. The single planet row coupled dual motor hybrid transmission as defined in claim 4, wherein: the first motor (4) is in meshed connection with the first transmission shaft (3) through a spline.
6. The single planet row coupled dual motor hybrid transmission as defined in claim 5, wherein: the output shaft (14) is connected with the speed changer (13) through a coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216529.8U CN211519237U (en) | 2019-12-11 | 2019-12-11 | Hybrid power transmission device with single planet row coupled with double motors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922216529.8U CN211519237U (en) | 2019-12-11 | 2019-12-11 | Hybrid power transmission device with single planet row coupled with double motors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211519237U true CN211519237U (en) | 2020-09-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922216529.8U Active CN211519237U (en) | 2019-12-11 | 2019-12-11 | Hybrid power transmission device with single planet row coupled with double motors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211519237U (en) |
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2019
- 2019-12-11 CN CN201922216529.8U patent/CN211519237U/en active Active
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