CN114435107B - Hybrid power transmission system of automobile - Google Patents
Hybrid power transmission system of automobile Download PDFInfo
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- CN114435107B CN114435107B CN202210130347.2A CN202210130347A CN114435107B CN 114435107 B CN114435107 B CN 114435107B CN 202210130347 A CN202210130347 A CN 202210130347A CN 114435107 B CN114435107 B CN 114435107B
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- planetary gear
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- transmission system
- power transmission
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
- B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
- B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
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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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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Hybrid Electric Vehicles (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention provides a hybrid power transmission system of an automobile, and belongs to the technical field of automobiles. The novel transmission system solves the problem that the rotational inertia of an output shaft in the existing transmission system is high. The hybrid power transmission system of the automobile comprises an engine, an output shaft, four planetary gear trains, a second clutch, a motor connected with the output end of the engine and an input shaft connected with the motor, wherein the four planetary gear trains are a second planetary gear train with a second planet carrier connected with the input shaft, a first planetary gear train with a first sun gear connected with a second sun gear of the second planetary gear train, a third planetary gear train with a third sun gear connected with a second external gear of the second planetary gear train and a fourth planetary gear train, the third planet carrier of the third planetary gear train is connected with a fourth planet carrier of the fourth planetary gear train through the second clutch, and the fourth planet carrier of the fourth planetary gear train is connected with the output shaft. The hybrid power transmission system of the automobile achieves the purpose of reducing the rotational inertia of an output shaft, so that the output efficiency is higher.
Description
Technical Field
The invention belongs to the technical field of automobiles, and relates to a hybrid power transmission system of an automobile.
Background
Along with the continuous improvement of life quality of people, the utilization rate of people to automobiles is higher and higher, and the existing automobiles also develop hybrid power transmissions, and the existing hybrid power automatic transmissions are hydraulic mode working automatic transmissions. The hybrid hydraulic automatic transmission consists of a motor, a hydraulic torque converter, a planetary gear train and a hydraulic control mechanism, wherein the automatic transmission realizes automatic gear lifting through the complex multi-group planetary gear train matched with a plurality of clutches, at present, the use proportion of the automatic transmission is continuously increased, the existing brake transmission on the market is mainly a six-speed automatic transmission, and the eight-speed automatic transmission is gradually increased, because the hybrid eight-speed automatic transmission is very complex in terms of control strategy, the hybrid eight-speed automatic transmission is very few, and the hybrid eight-speed automatic transmission has great defects in terms of reliability and the like.
In response to the above-mentioned problems, various hybrid power transmission systems for automobiles have been developed:
Such as chinese patent application [ grant bulletin number: CN101676136B discloses an 8-speed hybrid transmission architecture, the planetary transmission comprising an input member, a planetary gear arrangement including the planetary gear sets 20,30,40 and 50, and an output member continuously connected with the final drive mechanism, and five torque transfer devices 80,82,84,85 and 86, torque transfer devices 80 and 82 being stationary torque transfer devices, commonly referred to as brakes or reaction clutches, and torque transfer devices 84,85 and 86 being rotating torque transfer devices, commonly referred to as clutches. A first torque-transfer device, such as brake 80, selectively connects the sun gear member 22 of the planetary gear set 20 with the transmission housing 60; a second torque-transmitting device, such as brake 82, selectively connects the ring gear member 24 of the planetary gear set 20 with the transmission housing; a third torque-transmitting device, such as clutch 84, selectively connects the ring gear member 34 of the planetary gear set 30 with the sun gear member 52 of the planetary gear set 50; a fourth torque transmitting device, such as clutch 85, selectively connects the carrier assembly member 36 of the planetary gear set 30 with the sun gear member 52 of the planetary gear set 50; a fifth torque transmitting device, such as clutch 86, selectively connects the ring gear member 44 of the planetary gear set 40 with the sun gear member 52 of the planetary gear set 50.
Although the above structure can realize the adjustment of eight gears through four planetary gear trains, three clutches and two brakes, as the planetary carrier assembly member 46 of the third planetary gear train is always connected with the planetary carrier assembly member 56 of the fourth planetary gear train, and the output shaft is connected with the fourth planetary gear train, the third planetary gear train and the fourth planetary gear train are always connected with the output shaft in the driving process, so that the output shaft is always connected with the third planetary gear train and the fourth planetary gear train, the weight of the output shaft connection is increased, the rotational inertia of the output shaft is higher, and more power is required for driving, so that the efficiency of the output shaft is reduced, and the output efficiency of the hybrid power transmission system is affected.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a hybrid power transmission system of an automobile, which aims to solve the technical problems that: how to solve the problem of higher rotational inertia of an output shaft in the existing hybrid power transmission system.
The aim of the invention can be achieved by the following technical scheme:
The utility model provides a hybrid power transmission system of car, includes engine, output shaft, four planetary gear trains, second clutch, the motor of being connected with the engine output and the input shaft of being connected with the motor, four planetary gear trains are the second planetary gear train that second planet carrier and input shaft are connected, the first planetary gear train that first sun gear and the second sun gear of second planetary gear train are connected, the third planetary gear train that the third sun gear and the second external gear of second planetary gear train are connected and the fourth planetary gear train that has the fourth planet carrier, its characterized in that, the third planet carrier of third planetary gear train is connected with the fourth planet carrier of fourth planetary gear train through the second clutch, the fourth planet carrier of fourth planetary gear train is connected with the output shaft.
Working principle: the gear shifting of the hybrid power can be realized through the cooperation of an engine and a motor, the first sun gear of the first planetary gear train is connected with the second sun gear of the second planetary gear train, so that the first planetary gear train and the second planetary gear train can be linked, the second planet carrier of the second planetary gear train is connected with an input shaft, the input shaft can directly drive the second planet carrier of the second planetary gear train to rotate, the second external gear ring of the second planetary gear train is connected with the third sun gear of the third planetary gear train, so that the second planetary gear train and the third planetary gear train can be linked, the third planet carrier of the third planetary gear train is connected with the fourth planet carrier of the fourth planetary gear train through a second clutch, so that in the normal working process of the hybrid power transmission system, through the adjustment of different gears, the third planetary carrier of the third planetary gear train and the fourth planetary carrier of the fourth planetary gear train can be disconnected or connected, and the output shaft of the hybrid power transmission system is only connected with the fourth planetary carrier of the fourth planetary gear train, so that when the hybrid power transmission system is normally used, the output shaft is only connected with the fourth planetary gear train by disconnecting the second clutch, and the output shaft only bears the weight of the fourth planetary gear train, thereby achieving the purpose of reducing the rotational inertia of the output shaft, enabling smaller power to drive the output shaft to rotate, avoiding the problem that the rotational inertia of the output shaft is larger due to the fact that the fourth planetary carrier of the fourth planetary gear train is connected with the third planetary carrier of the third planetary gear train, and further enabling the output efficiency of the hybrid power transmission system to be higher.
In the hybrid power transmission system of the automobile, the hybrid power transmission system further comprises a first clutch and a third clutch, the second external gear ring of the second planetary gear train is connected with the third external gear ring of the third planetary gear train through the third clutch, and the fourth sun gear of the fourth planetary gear train is connected with the second planet carrier of the second planetary gear train through the first clutch.
The first clutch and the second clutch are also arranged at the position close to the output shaft, so that the first clutch, the second clutch and the third clutch can be disconnected when the speed of the transmission is changed, the transmission is used for automobile sliding, and when the automobile slides, the rotational inertia of the output shaft is reduced due to the fact that the first clutch, the second clutch and the third clutch are close to the output shaft, the dragging torque of the hybrid power transmission system is reduced, and the output efficiency of the hybrid power transmission system can be further improved.
In the above hybrid power transmission system of the automobile, the input shaft and the output shaft are located on the same axis.
The arrangement of this structure for four planetary gear sets's setting is more accurate, and the planetary gear sets's of being convenient for arranges, and the input shaft is integrated into one piece design, and the oil circuit of first clutch and third clutch of being convenient for is supplied with on the one hand, simplifies whole oil circuit structure, on the other hand, can strengthen the rigidity of input shaft, promotes hybrid drive system's stability.
In the hybrid power transmission system of the automobile, the input shaft is connected with the third external gear of the third planetary gear train through the first clutch, and the input shaft is connected with the fourth sun gear of the fourth planetary gear train through the first clutch.
The arrangement of the structure enables the third planetary gear train and the fourth planetary gear train to be braked relatively independently, the connection of the third planetary gear train and the fourth planetary gear train can be disconnected through the second clutch and the first clutch, the mutual interference of the third planetary gear train and the fourth planetary gear train is avoided, and the first clutch can ensure the smooth gear shifting of the third planetary gear train and the fourth planetary gear train, so that the gear shifting of the hybrid power transmission system is smoother.
In the hybrid power transmission system of the automobile, the hybrid power transmission system comprises the first shock absorber, the second shock absorber and the hydraulic torque converter locking clutch, the engine comprises an engine clutch, the motor comprises a motor rotor, the output end of the engine is connected with the engine clutch and the motor rotor through the first shock absorber, and the motor rotor is connected with the input shaft through the hydraulic torque converter locking clutch and the second shock absorber.
By adopting the hydraulic torque converter lockup clutch, the power output by the motor can be transmitted at high speed through the hydraulic torque converter lockup clutch, and the stepless speed change function can be realized, so that the stability of the output of the motor is improved; the arrangement of the first shock absorber and the second shock absorber ensures the output stability of the engine and the motor, avoids larger vibration during energy supply, and improves the gear shifting flexibility and riding comfort.
In the above hybrid power transmission system of an automobile, the motor includes a motor stator, and the hybrid power transmission system includes a transmission case to which the motor stator is fixedly connected.
The motor stator is directly fixedly connected to the transmission shell, so that the motor is more stable to install, and the stability of the hybrid power transmission system is further improved.
In the above hybrid power transmission system of the automobile, the hybrid power transmission system includes a torque converter having a pump impeller, and the motor rotor is connected to the pump impeller.
Through directly being connected the pump impeller of motor rotor and torque converter for the power of motor rotor output can be fast pass through the liquid in the torque converter and transmit, further promoted energy transmission efficiency.
In the above hybrid power transmission system of the automobile, the engine clutch, the torque converter lockup clutch, the first clutch, the second clutch, and the third clutch are all multi-plate clutches.
The multi-plate clutch has the advantages of small friction plate abrasion and long service life. The advantages of small radial size and large moment are improved, and the reversing and speed changing performances of the hybrid power transmission system are improved.
Compared with the prior art, the hybrid power transmission system has the following advantages:
1. The third planet carrier of the third planetary gear train is connected with the fourth planet carrier of the fourth planetary gear train through the second clutch, so that in the normal working process of the transmission, the third planet carrier of the third planetary gear train and the fourth planet carrier of the fourth planetary gear train can be disconnected or connected through adjustment of different gears, and the output shaft of the transmission is only connected with the fourth planet carrier of the fourth planetary gear train, so that when the transmission is in normal use, the output shaft is only connected with the fourth planetary gear train by disconnecting the second clutch, and the output shaft only bears the weight of the fourth planetary gear train, thereby achieving the purpose of reducing the rotational inertia of the output shaft, enabling smaller power to drive the output shaft to rotate, avoiding the problem that the rotational inertia of the output shaft is large due to the fact that the fourth planet carrier of the fourth planetary gear train is connected with the third planet carrier of the third planetary gear train, and further enabling the output efficiency of the hybrid power transmission system to be higher.
2. The first clutch and the second clutch are also arranged at the position close to the output shaft, so that the first clutch, the second clutch and the third clutch can be disconnected when the speed of the transmission is changed, the transmission is used for the automobile to slide, and when the automobile slides, the rotational inertia of the output shaft is reduced due to the fact that the first clutch, the second clutch and the third clutch are close to the output shaft, the dragging torque of the hybrid power transmission system is reduced, and the output efficiency of the hybrid power transmission system can be further improved.
3. The input shaft is integrated, so that oil paths of the first clutch and the third clutch are conveniently supplied, the integral oil path structure is simplified, and on the other hand, the rigidity of the input shaft can be enhanced, and the stability of the hybrid power transmission system is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
In the figure, 1, an engine; 1a, an engine clutch; 2. an output shaft; 3. a first brake; 4. a second brake; 5. a first planetary gear train; 5a, a first sun gear; 5b, a first planet; 5c, a first external gear ring; 5d, a first planet carrier; 6. a second planetary gear train; 6a, a second sun gear; 6b, a second planet wheel; 6c, a second outer ring gear; 6d, a second planet carrier; 7. a third planetary gear train; 7a, a third sun gear; 7b, a third planet wheel; 7c, a third external gear ring; 7d, a third planet carrier; 8. a fourth planetary gear train; 8a, a fourth sun gear; 8b, a fourth planet wheel; 8c, a fourth external gear ring; 8d, a fourth planet carrier; 9. a first clutch; 10. a second clutch; 11. a third clutch; 12. a motor; 12a, a motor rotor; 13. an input shaft; 14. a first damper; 15. a second damper; 16. a torque converter lockup clutch; 16a, a torque converter; 17. a transmission housing.
Detailed Description
The following are specific embodiments of the present invention and the technical solutions of the present invention will be further described with reference to the accompanying drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1, the hybrid power transmission system of the present automobile comprises an engine 1, a first damper 14, a second damper 15, a torque converter lockup clutch 16, a torque converter 16a, a transmission housing 7, an output shaft 2, a first brake 3, a second brake 4, a first planetary gear train 5, a second planetary gear train 6, a third planetary gear train 7, a fourth planetary gear train 8, a first clutch 9, a second clutch 10, a third clutch 11, a motor 12 connected to an output end of the engine 1, and an input shaft 13 connected to the motor 12, the motor 12 comprises a motor rotor 12a and a motor stator 12b, the engine 1 comprises an engine clutch 1a, the first planetary gear train 5 comprises a first sun gear 5a, a first planetary gear 5b, a first outer ring gear 5c, and a first carrier 5d; the second planetary gear train 6 includes a second sun gear 6a, a second planet gear 6b, a second external ring gear 6c, and a second planet carrier 6d; the third planetary gear train 7 includes a third sun gear 7a, a third planet gear 7b, a third external ring gear 7c, and a third planet carrier 7d; the fourth planetary gear train 8 includes a fourth sun gear 8a, a fourth planet gear 8b, a fourth external ring gear 8c, and a fourth planet carrier 8d.
Specifically, as shown in fig. 1, the first sun gear 5a of the first planetary gear train 5 and the second sun gear 6a of the second planetary gear train 6 can be braked in the transmission case 17 by the first brake 3, the first ring gear 5c of the first planetary gear train 5 can be braked in the transmission case 17 by the second brake 4, and the first carrier 5d of the first planetary gear train 5 is connected to the fourth ring gear 8c of the fourth planetary gear train 8;
the second sun gear 6a of the second planetary gear train 6 can be braked in the transmission housing 17 by the first brake 3 with the first sun gear 5a of the first planetary gear train 5, the second external ring gear 6c of the second planetary gear train 6 is connected with the third sun gear 7a of the third planetary gear train 7, the second external ring gear 6c of the second planetary gear train 6 can be connected with the third external ring gear 7c of the third planetary gear train 7 and the fourth sun gear 8a of the fourth planetary gear train 8 simultaneously by the third clutch 11, and the second planet carrier 6d of the second planetary gear train 6 is connected with the input shaft 13 and the first clutch 9;
The third sun gear 7a of the third planetary gear train 7 is connected with the second external gear 6c of the second planetary gear train 6, the third external gear 7c of the third planetary gear train 7 is connected with the fourth sun gear 8a of the fourth planetary gear train 8, the third external gear 7c of the third planetary gear train 7 can be connected with the third sun gear 7a of the third planetary gear train 7 and the second external gear 6c of the second planetary gear train 6 through the third clutch 11, the third external gear 7c of the third planetary gear train 7 can be connected with the input shaft 13 and the second planet carrier 6d of the second planetary gear train 6 through the first clutch 9, and the third planet carrier 7d of the third planetary gear train 7 can be connected with the fourth planet carrier 8d of the fourth planetary gear train 8 through the second clutch 10;
The fourth sun gear 8a of the fourth planetary gear train 8 is connected to the third external ring gear 7c of the third planetary gear train 7, the fourth sun gear 8a of the fourth planetary gear train 8 can be connected to the third sun gear 7a of the third planetary gear train 7 and the second external ring gear 6c of the second planetary gear train 6 simultaneously through the third clutch 11, the fourth sun gear 8a of the fourth planetary gear train 8 can be connected to the input shaft 13 and the second carrier 6d of the second planetary gear train 6 simultaneously through the first clutch 9, the fourth external ring gear 8c of the fourth planetary gear train 8 is connected to the first external ring gear 5c of the first planetary gear train 5, the fourth carrier 8d of the fourth planetary gear train 8 can be connected to the third carrier 7d of the third planetary gear train 7 through the second clutch 10, and the fourth carrier 8d of the fourth planetary gear train 8 is connected to the output shaft 2.
Working principle: the first brake 3 and the second brake 4 are arranged, so that the first planetary gear train 5 and the second planetary gear train 6 are braked, the cooperation of the engine 1 and the motor 12 can realize the gear shifting of the hybrid power, the first sun gear 5a of the first planetary gear train 5 and the second sun gear 6a of the second planetary gear train 6 can synchronously brake through the first brake 3 through connecting the first planetary gear train 5 and the second planetary gear train 6 with the first planetary gear train 5, the second external gear 6c of the second planetary gear train 6 is connected with the third sun gear 7a of the third planetary gear train 7, the second planetary gear train 6 and the third planetary gear train 7 can be linked, the third planetary carrier 7d of the third planetary gear train 7 is connected with the fourth planetary carrier 8d of the fourth planetary gear train 8 through the second clutch 10, the third planetary carrier 7d of the third planetary gear train 7 and the fourth carrier 8 are disconnected or communicated through the adjustment of different gears in the normal working process of the transmission, the moment of inertia is reduced through connecting the fourth carrier 8 with the fourth carrier 8, and the fourth carrier 2 is only connected with the fourth carrier 8, the moment of inertia is reduced, and the moment of inertia is reduced compared with the fourth carrier 8, the moment of inertia is reduced, the moment is required, the moment of inertia is reduced, the output by the fourth carrier 2 is realized, and the moment is only has the output by the fourth carrier 2, and the moment is connected with the fourth output, and has the fourth output 2.
Under the cooperation of the first brake 3, the second brake 4, the first clutch 9, the second clutch 10, the third clutch 11 and the four planetary gear trains, eight-gear forward gears and one reverse gear are realized, so that the vehicle is more comfortable to ride.
As shown in fig. 1, the input shaft 13 is located on the same axis as the output shaft 2.
As shown in fig. 1, the present hybrid power transmission system includes a first damper 14, a second damper 15, and a torque converter lockup clutch 16, the engine 1 includes an engine clutch 1a, the motor 12 includes a motor rotor 12a, an input end of the engine 1 is connected to the engine clutch 1a and the motor rotor 12a through the first damper 14, and the motor rotor 12a is connected to the input shaft 13 through the torque converter lockup clutch 16 and the second damper 15.
As shown in fig. 1, the electric machine 12 includes a motor stator, and the present hybrid powertrain includes a transmission housing 17 to which the motor stator is fixedly connectable and a torque converter 16a having a pump impeller to which the motor rotor 12a is connected.
As shown in fig. 1, the engine clutch 1a, the torque converter lockup clutch 16, the first clutch 9, the second clutch 10, the third clutch 11, the first brake 3, and the second brake 4 are all multi-plate clutches.
The following table is a clutch operating table:
The following table is a table of transmission operating conditions:
the specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (6)
1. The hybrid power transmission system of the automobile comprises an engine (1), an output shaft (2), four planetary gear trains, a second clutch (10), a motor (12) connected with the output end of the engine (1) and an input shaft (13) connected with the motor (12), wherein the four planetary gear trains are a second planetary gear train (6) with a second planet carrier (6 d) connected with the input shaft (13), a first planetary gear train (5) with a first sun gear (5 a) of the second planetary gear train (6) connected with a second sun gear (6 a), a third planetary gear train (7) with a third sun gear (7 a) connected with a second external gear (6 c) of the second planetary gear train (6) and a fourth planetary gear train (8) with a fourth planet carrier (8 d), the hybrid power transmission system is characterized in that the third planetary gear train (7) with the fourth planet carrier (8 d) of the fourth planetary gear train (8) connected with the fourth planet carrier (8 d) through the second clutch (10), the fourth output shaft (8) is connected with the third planetary gear train (8) with the third clutch (8), the second external gear ring (6 c) of the second planetary gear system (6) is connected with the third external gear ring (7 c) of the third planetary gear system (7) through a third clutch (11), the fourth sun gear (8 a) of the fourth planetary gear system (8) can be connected with the second planet carrier (6 d) of the second planetary gear system (6) through a first clutch (9), the input shaft (13) is connected with the third external gear ring (7 c) of the third planetary gear system (7) through the first clutch (9), and the input shaft (13) is connected with the fourth sun gear (8 a) of the fourth planetary gear system (8) through the first clutch (9).
2. Hybrid powertrain system of a motor vehicle according to claim 1, characterized in that the input shaft (13) is co-axial with the output shaft (2).
3. The hybrid power transmission system of an automobile according to claim 1, characterized in that the hybrid power transmission system comprises a first damper (14), a second damper (15) and a torque converter lockup clutch (16), the engine (1) comprises an engine clutch (1 a), the motor (12) comprises a motor rotor (12 a), an output end of the engine (1) is connected with the engine clutch (1 a) and the motor rotor (12 a) through the first damper (14), and the motor rotor (12 a) is connected with the input shaft (13) through the torque converter lockup clutch (16) and the second damper (15).
4. A hybrid powertrain system for a motor vehicle according to claim 1, characterized in that the electric machine (12) comprises a motor stator, the hybrid powertrain system comprising a transmission housing (17) to which the motor stator is connectable.
5. A hybrid powertrain for a motor vehicle according to claim 3, characterized in that the hybrid powertrain comprises a torque converter (16 a) with a pump impeller, to which the electric motor rotor (12 a) is connected.
6. A hybrid powertrain system of a vehicle according to claim 3, characterized in that the engine clutch (1 a), the torque converter lockup clutch (16), the first clutch (9), the second clutch (10) and the third clutch (11) are all multiplate clutches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210130347.2A CN114435107B (en) | 2022-02-11 | 2022-02-11 | Hybrid power transmission system of automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210130347.2A CN114435107B (en) | 2022-02-11 | 2022-02-11 | Hybrid power transmission system of automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114435107A CN114435107A (en) | 2022-05-06 |
| CN114435107B true CN114435107B (en) | 2024-07-12 |
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ID=81370882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210130347.2A Active CN114435107B (en) | 2022-02-11 | 2022-02-11 | Hybrid power transmission system of automobile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114435107B (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676136A (en) * | 2008-09-16 | 2010-03-24 | 通用汽车环球科技运作公司 | 8-speed hybrid transmission architectures |
| DE102013225770A1 (en) * | 2013-09-20 | 2015-03-26 | Zf Friedrichshafen Ag | Multi-stage automatic transmission |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009028719A1 (en) * | 2009-08-20 | 2011-02-24 | Zf Friedrichshafen Ag | Planetary type multi-stage transmission i.e. automatic transmission, for passenger car, has shaft connected to web of planetary gear set, where another planetary gear set is interlocked by closing clutch |
| DE102013205387A1 (en) * | 2013-03-27 | 2014-10-02 | Zf Friedrichshafen Ag | Transmission for a motor vehicle |
| DE102016202723B4 (en) * | 2016-02-23 | 2018-01-11 | Schaeffler Technologies AG & Co. KG | High-ratio epicyclic gearbox, in particular for an electrically operated motor vehicle |
| CN107804156A (en) * | 2017-09-28 | 2018-03-16 | 北京理工大学 | One kind simplifies double-planet train Multimode hybrid power system and control method |
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2022
- 2022-02-11 CN CN202210130347.2A patent/CN114435107B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101676136A (en) * | 2008-09-16 | 2010-03-24 | 通用汽车环球科技运作公司 | 8-speed hybrid transmission architectures |
| DE102013225770A1 (en) * | 2013-09-20 | 2015-03-26 | Zf Friedrichshafen Ag | Multi-stage automatic transmission |
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| CN114435107A (en) | 2022-05-06 |
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