CN115214341A - Hybrid power electromechanical coupling system - Google Patents

Hybrid power electromechanical coupling system Download PDF

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Publication number
CN115214341A
CN115214341A CN202110764753.XA CN202110764753A CN115214341A CN 115214341 A CN115214341 A CN 115214341A CN 202110764753 A CN202110764753 A CN 202110764753A CN 115214341 A CN115214341 A CN 115214341A
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CN
China
Prior art keywords
gear
transmission device
motor
power
power transmission
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Pending
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CN202110764753.XA
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Chinese (zh)
Inventor
周文太
朱永明
祁宏钟
张安伟
赵江灵
李瑶瑶
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Guangzhou Automobile Group Co Ltd
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Guangzhou Automobile Group Co Ltd
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Application filed by Guangzhou Automobile Group Co Ltd filed Critical Guangzhou Automobile Group Co Ltd
Priority to CN202110764753.XA priority Critical patent/CN115214341A/en
Publication of CN115214341A publication Critical patent/CN115214341A/en
Pending legal-status Critical Current

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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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 motors or the generators
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 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
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • 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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—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 Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • 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)

Abstract

The invention relates to the technical field of automobiles, and discloses a hybrid power electromechanical coupling system which comprises an engine, a first motor, a planetary gear transmission device, a first power transmission device, a brake, a second motor, a second power transmission device and a power output end, wherein the first motor is arranged between the engine and the planetary gear transmission device, and the engine and the planetary gear transmission device are both connected with the first motor; one end of the brake is fixed, and the other end of the brake is connected with the planetary gear transmission device; the planetary gear transmission device is connected with the first power transmission device; the second motor is connected with the second power transmission device; the first power transmission device and the second power transmission device are both connected with the power output end. According to the invention, the first motor is arranged between the engine and the planetary gear transmission device, so that the adjustable range of the speed ratio is larger, and the volume of the first motor is reduced.

Description

Hybrid power electromechanical coupling system
Technical Field
The invention relates to the technical field of automobiles, in particular to a hybrid power electromechanical coupling system.
Background
The power system comprises an engine (internal combustion engine) and a transmission system consisting of a transmission, a differential and a transmission shaft, and is used for providing driving power required by driving wheels for the vehicle. Internal combustion engines have a range of speeds and torques and achieve optimum operation over a small range, with minimum fuel consumption, minimum harmful emissions, or both. However, the actual road conditions vary widely, and they are reflected not only in the speed of the driving wheels, but also in the torque required by the driving wheels. Therefore, it is a primary task to achieve the optimum rotation speed and torque of the internal combustion engine, i.e., the optimum power state, and to match the power state of the driving wheels well.
In recent years, motor hybrid technology is a new development direction, and hybrid systems mainly include a series hybrid system and a parallel hybrid system. The series hybrid system has simple structure and flexible layout, but has high power requirement on the motor, large volume and heavy weight. The parallel hybrid system has two independent parallel power chains, one of which employs a continuously variable transmission for speed regulation and the other employs a motor-battery system for power or torque regulation. The motor has low power requirement on the motor and high efficiency. The existing hybrid power system can realize the optimal rotating speed and torque of the engine, but the existing hybrid power system has the defects of small speed ratio adjustable range, large overall structure size and inconvenience for the installation and the arrangement of the hybrid power system.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a hybrid electromechanical coupling system to solve the problems of a small speed ratio adjustable range and a large overall structure size of the existing hybrid system.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention discloses a hybrid power electromechanical coupling system, which comprises an engine, a first motor, a planetary gear transmission device, a first power transmission device, a brake, a second motor, a second power transmission device and a power output end, wherein the first motor is arranged between the engine and the planetary gear transmission device, and the engine and the planetary gear transmission device are connected with the first motor; one end of the brake is fixed, and the other end of the brake is connected with the planetary gear transmission device; the planetary gear transmission device is connected with the first power transmission device; the second motor is connected with the second power transmission device; the first power transmission device and the second power transmission device are both connected with the power output end.
Preferably, the hybrid electromechanical coupling system further includes a first clutch, the first clutch is disposed inside the first motor, one end of the first clutch is connected to the first motor, and the other end of the first clutch is connected to the planetary gear transmission device.
Preferably, the planetary gear transmission device comprises a planet carrier, a planetary gear train, a sun gear train, a second clutch and a first connecting shaft, wherein the planetary gear train is installed on the planet carrier, the sun gear train is engaged with the planetary gear train, one end of the second clutch is connected with the planet carrier, the other end of the second clutch is connected with the sun gear train, one end of the first connecting shaft is connected with the brake, and the other end of the first connecting shaft penetrates through the second clutch and is connected with the sun gear train.
Preferably, the planetary gear train includes first planet wheel and second planet wheel, the sun gear train includes first sun gear and second sun gear, first sun gear with first planet wheel meshes mutually, the second sun gear with second planet wheel meshes mutually, the second clutch with the second sun gear is connected, first even axle with first sun gear is connected.
Preferably, the first power transmission device and the second power transmission device are both gear sets; the power output end is provided with a differential, a fifth gear is arranged on the differential, and the first power transmission device and/or the second power transmission device are in power transmission connection with the fifth gear.
Preferably, the first power transmission device comprises a first gear, a second gear, a first intermediate shaft and a fourth gear, the second power transmission device comprises a third gear, the first gear is in power transmission connection with the planetary gear transmission device, the second gear is meshed with the first gear, the third gear is connected with the second motor and is meshed with the second gear, the second gear and the fourth gear are both mounted on the first intermediate shaft, and the fourth gear is meshed with a fifth gear of the differential.
Preferably, the first power transmission device includes a first gear, a second gear, a first intermediate shaft and a fourth gear, the second power transmission device includes a third gear and a sixth gear, the first gear is in power transmission connection with the planetary gear transmission device, the second gear is meshed with the first gear, the third gear is connected with the second motor, the third gear is meshed with the sixth gear, the second gear, the fourth gear and the sixth gear are all mounted on the first intermediate shaft, and the fourth gear is meshed with a fifth gear of the differential.
Preferably, the second gear and the sixth gear are located on both sides of the fourth gear, respectively.
Preferably, the first power transmission device comprises a first gear, a second gear, a first intermediate shaft and a fourth gear, the first gear is in power transmission connection with the planetary gear transmission device, the second gear is meshed with the first gear, the second gear and the fourth gear are both mounted on the first intermediate shaft, and the fourth gear is meshed with a fifth gear of the differential; the second power transmission device comprises a third gear, a seventh gear, an eighth gear and a second intermediate shaft, the third gear is connected with the second motor, the seventh gear is meshed with the third gear, the seventh gear and the eighth gear are both mounted on the second intermediate shaft, and the eighth gear is meshed with a fifth gear of the differential.
Preferably, the second intermediate shaft is arranged in parallel with the first intermediate shaft.
Compared with the prior art, the hybrid electromechanical coupling system has the beneficial effects that:
according to the hybrid electromechanical coupling system, the first motor is arranged between the engine and the planetary gear transmission device, so that the adjustable range of the speed ratio is large, the size of the first motor is reduced, the overall size of the system is further reduced, and the system is convenient to install and arrange.
In addition, the invention can realize various working modes such as a pure electric mode of 3 gears, a series hybrid mode of 3 gears, a parallel hybrid mode of two gears and the like, and can obtain good dynamic property and economy under different working conditions.
Drawings
Fig. 1 is a schematic structural view of a hybrid electromechanical coupling system according to a first embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a hybrid electromechanical coupling system according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a hybrid electromechanical coupling system according to a third embodiment of the present invention;
fig. 4 is a schematic structural diagram of a hybrid electromechanical coupling system according to a fourth embodiment of the present invention;
fig. 5 is a schematic structural diagram of a hybrid electromechanical coupling system according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural view of a hybrid electromechanical coupling system according to a sixth embodiment of the present invention;
in the figure, 1, an engine; 2. a first motor; 3. a second motor; 4. an input shaft; 5. a first clutch; 6. a second clutch; 7. a brake; 8. a first motor rotor; 9. a first motor stator; 10. a planet carrier; 11. a first sun gear; 12. a second sun gear; 13. a first planet gear; 14. a second planet wheel; 15. a first coupling shaft; 16. a first gear; 17. a second gear; 18. a second coupling shaft; 19. a third gear; 20. a first intermediate shaft; 21. a fourth gear; 22. a fifth gear; 23. a differential mechanism; 24. a housing; 25. a sixth gear; 26. a seventh gear; 27. an eighth gear; 28. a second intermediate shaft.
Detailed Description
The following detailed description of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
First embodiment
As shown in fig. 1, a hybrid electromechanical coupling system according to an embodiment of the present invention includes an engine 1, a first motor 2, a planetary gear transmission device, a first power transmission device, a brake 7, a second motor 3, a second power transmission device, and a power output end, where the first motor 2 is disposed between the engine 1 and the planetary gear transmission device, and both the engine 1 and the planetary gear transmission device are connected to the first motor 2; one end of the brake 7 is fixed on the wall surface of the shell 24, and the other end of the brake 7 is connected with the planetary gear transmission device; the planetary gear transmission device is connected with the first power transmission device; the second motor 3 is connected with the second power transmission device; the first power transmission device and the second power transmission device are both connected with the power output end. The power of the engine 1 and the power of the first motor 2 are transmitted to a power output end through the planetary gear transmission device and the first power transmission device in sequence, and the planetary gear transmission device can be locked and unlocked through the brake 7, when the brake 7 is combined, the brake 7 can lock the planetary gear transmission device, and when the brake 7 is separated, the brake 7 unlocks the planetary gear transmission device; the power of the second motor 3 is transmitted to the power output end through the second power transmission device. Through setting up first motor 2 between engine 1 and planetary gear for the adjustable range of velocity ratio is great, reduces the volume of first motor 2, and then reduces the overall size of system, is convenient for install the system and arranges.
Preferably, the engine 1, the first electric machine 2 and the planetary gear transmission are coaxially arranged, and both the engine 1 and the planetary gear transmission are connected with the first electric machine 2 through the input shaft 4. The first motor 2 comprises a first motor stator 9 and a first motor rotor 8, the first motor stator 9 is arranged on the outer peripheral side of the first motor rotor 8, the first motor stator 9 is fixedly connected with the shell 24, and the input shaft 4 is connected with the first motor rotor 8.
In this embodiment, the planetary gear transmission device includes planet carrier 10, planetary gear train, sun gear train, second clutch 6 and first connecting shaft 15, planetary gear train installs on planet carrier 10, sun gear train with planetary gear train meshes mutually, the one end of second clutch 6 with planet carrier 10 is connected, the other end of second clutch 6 with sun gear train connects, the one end of first connecting shaft 15 with stopper 7 is connected, the other end of first connecting shaft 15 passes second clutch 6 with sun gear train connects, and second clutch 6 makes planet carrier 10 and sun gear train combine or separate, and stopper 7 realizes the locking or the unblock to sun gear train through locking or unblock first connecting shaft 15.
Further, in this embodiment, the planetary gear train includes a first planet gear 13 and a second planet gear 14, the sun gear train includes a first sun gear 11 and a second sun gear 12, the first sun gear 11 is engaged with the first planet gear 13, the second sun gear 12 is engaged with the second planet gear 14, the second clutch 6 is connected with the second sun gear 12, and the first connecting shaft 15 is connected with the first sun gear 11. The second clutch 6 couples or decouples the carrier 10 to or from the second sun gear 12, and when the brake 7 is operated, the first connecting shaft 15 is locked, so that the first connecting shaft 15 is fixed and cannot rotate, and the first sun gear 11 connected with the first connecting shaft 15 is fixed. Wherein the second sun gear 12 is located between the first sun gear 11 and the brake 7.
In this embodiment, the power output end is provided with a differential 23, the differential 23 is provided with a fifth gear 22, and the first power transmission device and/or the second power transmission device is/are in power transmission connection with the fifth gear 22 so as to transmit power to the differential 23 and output the power outwards through the differential 23. Further, the first power transmission device and the second power transmission device are both gear sets, and one or two gear sets are in meshing transmission connection with the fifth gear 22.
In the embodiment, the first power transmission device comprises a first gear 16, a second gear 17, a first intermediate shaft 20 and a fourth gear 21, the second power transmission device comprises a third gear 19, the first gear 16 is in power transmission connection with the planetary gear transmission device, specifically, the first gear 16 is installed on the first connecting shaft 15, the first gear 16 is positioned between the second clutch 6 and the brake 7, and the power of the second sun gear 12 can be transmitted to the first gear 16; the second gear 17 is engaged with the first gear 16, the third gear 19 is connected to the second motor 3 through a second connecting shaft 18, the third gear 19 is engaged with the second gear 17, the second gear 17 and the fourth gear 21 are both mounted on the first intermediate shaft 20, and the fourth gear 21 is engaged with the fifth gear 22 of the differential 23. Preferably, the second connecting shaft 18 is disposed in parallel with the first intermediate shaft 20, and the second connecting shaft 18 and the first intermediate shaft 20 are respectively located on both sides of the second gear 17. The power of the planetary gear transmission device is sequentially output to a differential 23 through a first gear 16, a second gear 17, a first intermediate shaft 20, a fourth gear 21 and a fifth gear 22; the power of the second motor 3 is output to the differential 23 through the second connecting shaft 18, the third gear 19, the second gear 17, the first intermediate shaft 20, the fourth gear 21 and the fifth gear 22 in sequence, and the transmission path from the engine 1 to the differential 23 and the transmission path from the second motor 3 to the differential 23 share the second gear, the first intermediate shaft 20 and the fourth gear 21.
The hybrid electromechanical coupling system according to the present embodiment can realize the following operation modes, as shown in table 1 below.
TABLE 1
Figure BDA0003149048450000071
The respective operation modes are explained below with reference to table 1.
In the electric only mode, the engine 1 is not operated, the second clutch 6 is disengaged, and the brake 7 is disengaged. The second electric machine 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the series hybrid mode, the engine 1 operates, the second clutch 6 is disengaged, and the brake 7 is disengaged. The engine 1 transmits power to the first motor 2 through the input shaft 4 to drive the first motor 2 to generate electricity; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 1-gear parallel hybrid mode, the engine 1 operates, the second clutch 6 is disengaged, and the brake 7 is engaged. At this time, the power of the engine 1 and the first motor 2 is transmitted to the second sun gear 12 through the carrier 10, and then is output to the differential 23 through the first gear 16, the second gear 17, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 2-speed parallel hybrid mode, the engine 1 operates, the second clutch 6 is engaged, and the brake 7 is disengaged. At this time, the power of the engine 1 and the first motor 2 is transmitted to the second sun gear 12 through the carrier 10, and then is output to the differential 23 through the first gear 16, the second gear 17, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
The Hybrid electromechanical coupling system is suitable for new energy vehicles, and can be Plug-in Hybrid Electric vehicles (PHEVs) or Hybrid Electric Vehicles (HEVs).
Second embodiment
As shown in fig. 2, the structure of the hybrid electromechanical coupling system according to the present embodiment is substantially the same as that of the first embodiment, except that the hybrid electromechanical coupling system according to the present embodiment further includes a first clutch 5, the first clutch 5 is disposed inside the first electric machine 2, one end of the first clutch 5 is connected to the first electric machine 2, and the other end of the first clutch 5 is connected to the planetary gear transmission device, specifically, to the carrier 10 of the planetary gear transmission device. Through setting up first clutch 5 is integrated in the inside of first motor 2, realized the design of integrating of first clutch 5 and first motor 2 for the structure is compacter.
The first motor 2 includes a first motor stator 9 and a first motor rotor 8, the first motor stator 9 is disposed on an outer peripheral side of the first motor rotor 8, the first clutch 5 is disposed inside the first motor rotor 8, and the first clutch 5 is connected to the first motor rotor 8.
The hybrid power electromechanical coupling system has a dual-motor pure electric mode with 3 gears, a series hybrid mode with 3 gears, and a parallel hybrid mode with two gears, and can automatically realize switching of different modes according to the charge state of a battery and the vehicle speed requirement, as shown in table 2 below.
TABLE 2
Figure BDA0003149048450000081
Figure BDA0003149048450000091
Each operation mode is described in detail below with reference to table 1.
Under 1 fender pure electric mode, engine 1 is out of work, and first motor 2 is out of work, and first clutch 5 separates, and the separation of second clutch 6, stopper 7 combines. At this time, the second motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
Under 2 keep off pure electric mode, engine 1 is out of work, and first motor 2 is out of work, and first clutch 5 separation, second clutch 6 combines, and stopper 7 separation. At this time, the second electric motor 3 outputs power to the differential 23 through the second coupling shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
Under 3 keep off pure electric mode, engine 1 is out of work, and first motor 2 is out of work, and first clutch 5 separation or combination, second clutch 6 separation, stopper 7 separation. At this time, the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 1-gear series hybrid mode, the engine 1 operates, the first clutch 5 is disengaged, the second clutch 6 is disengaged, and the brake 7 is engaged. At the moment, the engine 1 transmits power to the first motor 2 through the input shaft 4 to drive the first motor 2 to generate electricity; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 2-speed series hybrid mode, the engine 1 operates, the first clutch 5 is disengaged, the second clutch 6 is engaged, and the brake 7 is disengaged. At the moment, the engine 1 transmits power to the first motor 2 through the input shaft 4 to drive the first motor 2 to generate electricity; the second electric motor 3 outputs power to the differential 23 via the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 3-speed series hybrid mode, the engine 1 operates, the first clutch 5 is disengaged or engaged, the second clutch 6 is disengaged, and the brake 7 is disengaged. At the moment, the engine 1 transmits power to the first motor 2 through the input shaft 4 to drive the first motor 2 to generate electricity; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 1-gear parallel hybrid mode, the engine 1 operates, the first clutch 5 is engaged, the second clutch 6 is disengaged, and the brake 7 is engaged. At this time, the power of the engine 1 and the first motor 2 is transmitted to the second sun gear 12 through the carrier 10, and then is output to the differential 23 through the first gear 16, the second gear 17, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
In the 2-speed parallel hybrid mode, the engine 1 operates, the first clutch 5 is engaged, the second clutch 6 is engaged, and the brake 7 is disengaged. At this time, the power of the engine 1 and the first motor 2 is transmitted to the second sun gear 12 through the carrier 10, and then is output to the differential 23 through the first gear 16, the second gear 17, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22; the second electric motor 3 outputs power to the differential 23 through the second connecting shaft 18, the third gear 19, the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22.
It should be noted that other specific embodiments of the present embodiment are the same as the specific embodiment of the first embodiment, and are not described in detail here.
Third embodiment
As shown in fig. 3, the structure of the hybrid electromechanical coupling system of the present embodiment is substantially the same as that of the second embodiment, except that in the present embodiment, the first power transmission device includes a first gear 16, a second gear 17, a first intermediate shaft 20 and a fourth gear 21, the second power transmission device includes a third gear 19 and a sixth gear 25, the first gear 16 is in power transmission connection with the planetary gear transmission device, specifically, the first gear 16 is mounted on the first connecting shaft 15, and the first gear 16 is located between the second clutch 6 and the brake 7; the second gear 17 is meshed with the first gear 16, the third gear 19 is connected with the second motor 3 through a second connecting shaft 18, the third gear 19 is meshed with the sixth gear 25, the second gear 17, the fourth gear 21 and the sixth gear 25 are all mounted on the first intermediate shaft 20, and the fourth gear 21 is meshed with the fifth gear 22 of the differential 23. The power of the planetary gear transmission device is transmitted to a differential 23 through a first gear 16, a second gear 17, a first intermediate shaft 20, a fourth gear 21 and a fifth gear 22 in sequence; the power of the second motor 3 is transmitted to the differential 23 through the second connecting shaft 18, the third gear 19, the sixth gear 25, the first intermediate shaft 20, the fourth gear 21 and the fifth gear 22 in sequence. The power transmission path from the engine 1 to the differential 23 shares the first intermediate shaft 20, the fourth gear 21, and the fifth gear 22 with the power transmission path from the second electric machine 3 to the differential 23. The power transmission path from the second electric machine 3 to the differential 23 no longer passes through the second gear 17, so that the gear ratio from the second electric machine 3 to the differential 23 can be easily adjusted without affecting the gear ratio from the engine 1 to the differential 23.
Further, the second gear 17 and the sixth gear 25 are located on both sides of the fourth gear 21, respectively.
It should be noted that other specific embodiments of the present embodiment are the same as the specific embodiments of the second embodiment, and are not described in detail herein.
Fourth embodiment
As shown in fig. 4, the structure of the hybrid electromechanical coupling system of the present embodiment is substantially the same as that of the third embodiment except that the hybrid electromechanical coupling system of the present embodiment does not include the first clutch 5. The engine 1, the first motor 2 and the planetary gear transmission device are coaxially arranged, and the engine 1 and the planetary gear transmission device are both connected with the first motor 2 through the input shaft 4 and are specifically connected with the first motor rotor 8.
It should be noted that other specific embodiments of this embodiment are the same as the specific embodiments of the third embodiment, and are not described again here.
Fifth embodiment
As shown in fig. 5, the structure of the hybrid electromechanical coupling system according to the present embodiment is substantially the same as that of the second embodiment except that, in the present embodiment, the first power transmission device includes a first gear 16, a second gear 17, a first intermediate shaft 20 and a fourth gear 21, the first gear 16 is in power transmission connection with the planetary gear transmission device, the second gear 17 is meshed with the first gear 16, both the second gear 17 and the fourth gear 21 are mounted on the first intermediate shaft 20, and the fourth gear 21 is meshed with a fifth gear 22 of the differential 23; the power of the planetary gear is transmitted to the differential 23 via the first gear 16, the second gear 17, the first intermediate shaft 20, the fourth gear 21 and the fifth gear 22 in this order.
The second power transmission device includes a third gear 19, a seventh gear 26, an eighth gear 27 and a second intermediate shaft 28, the third gear 19 is connected to the second electric motor 3 through a second connecting shaft 18, the seventh gear 26 is engaged with the third gear 19, the seventh gear 26 and the eighth gear 27 are both mounted on the second intermediate shaft 28, and the eighth gear 27 is engaged with the fifth gear 22 of the differential 23. The power of the second motor 3 is transmitted to the differential 23 through the second connecting shaft 18, the third gear 19, the seventh gear 26, the second intermediate shaft 28, the eighth gear 27 and the fifth gear 22 in sequence.
In the present embodiment, the transmission paths of the engine 1 to the differential 23 and the transmission paths of the second electric machine 3 and the differential 23 do not share any component, and the gear sets of the first power transmission device and the second power transmission device are respectively engaged with the fifth gear 22 of the differential 23, so that the transmission ratios of the engine 1 to the differential 23 and the transmission ratios of the second electric machine 3 to the differential 23 can be respectively adjusted, thereby more conveniently adjusting the transmission ratios of the second electric machine 3 to the differential 23 without affecting the transmission ratios of the engine 1 to the differential 23.
Compared with the third embodiment, in the embodiment, the transmission path from the engine 1 to the differential 23 and the transmission path from the second motor 3 to the differential 23 do not share any component, so that the second motor 3 is spaced farther from the first motor 2 and the planetary gear transmission, and the arrangement of the second motor 3 is more flexible and convenient.
In the present embodiment, the second connecting shaft 18, the second intermediate shaft 28 and the first intermediate shaft 20 are all arranged in parallel.
It should be noted that other specific embodiments of the present embodiment are the same as the specific embodiments of the second embodiment, and are not described in detail here.
Sixth embodiment
As shown in fig. 6, the structure of the hybrid electromechanical coupling system according to the present embodiment is substantially the same as that of the fifth embodiment except that the hybrid electromechanical coupling system according to the present embodiment does not include the first clutch 5. The engine 1, the first motor 2 and the planetary gear transmission device are coaxially arranged, and the engine 1 and the planetary gear transmission device are both connected with the first motor 2 through the input shaft 4 and are specifically connected with the first motor rotor 8.
It should be noted that other embodiments of the present embodiment are the same as those of the fifth embodiment, and are not described in detail here.
To sum up, the embodiment of the present invention provides a hybrid electromechanical coupling system, which enables an adjustable range of a speed ratio to be large by disposing a first motor 2 between an engine 1 and a planetary gear transmission device, and reduces the volume of the first motor 2, thereby reducing the overall size of the system and facilitating installation and arrangement of the system. In addition, the invention can realize various working modes such as a pure electric mode of 3 gears, a series hybrid mode of 3 gears, a parallel hybrid mode of two gears and the like, and can obtain good dynamic economy under different working conditions; and in the switching process of each working mode, the first motor or the second motor participates in driving, and the power cannot be interrupted. In addition, the first clutch 5 is arranged inside the first motor rotor 8, so that the integration degree is high, and the structure is more compact. In addition, the hybrid electromechanical coupling system can be suitable for HEV (hybrid electric vehicle) models and PHEV (hybrid electric vehicle) models, and is better in platformization and wide in application range.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (10)

1. A hybrid electromechanical coupling system is characterized by comprising an engine, a first motor, a planetary gear transmission device, a first power transmission device, a brake, a second motor, a second power transmission device and a power output end, wherein the first motor is arranged between the engine and the planetary gear transmission device, and the engine and the planetary gear transmission device are both connected with the first motor; one end of the brake is fixed, and the other end of the brake is connected with the planetary gear transmission device; the planetary gear transmission device is connected with the first power transmission device; the second motor is connected with the second power transmission device; the first power transmission device and the second power transmission device are connected with the power output end.
2. The hybrid electromechanical coupling system according to claim 1, further comprising a first clutch that is provided inside the first electric machine, and one end of the first clutch is connected to the first electric machine, and the other end of the first clutch is connected to the planetary gear transmission.
3. A hybrid electromechanical coupling system according to claim 1 wherein the epicyclic gearing comprises a planet carrier, a planetary gear train mounted on the planet carrier, a sun gear train engaged with the planetary gear train, a second clutch having one end connected to the planet carrier and the other end connected to the sun gear train, and a first coupling having one end connected to the brake and the other end connected to the sun gear train through the second clutch.
4. A hybrid electromechanical coupling system according to claim 3, wherein the planetary gear train includes first and second planet gears, the sun gear train includes first and second sun gears, the first sun gear meshes with the first planet gear, the second sun gear meshes with the second planet gear, the second clutch is connected with the second sun gear, and the first connecting shaft is connected with the first sun gear.
5. The hybrid electromechanical coupling system according to claim 1, wherein the first and second power transmission devices are each a gear set; the power output end is provided with a differential, a fifth gear is arranged on the differential, and the first power transmission device and/or the second power transmission device are/is in power transmission connection with the fifth gear.
6. The hybrid electromechanical coupling system according to claim 5, wherein the first power transfer device includes a first gear, a second gear, a first countershaft, and a fourth gear, the second power transfer device includes a third gear, the first gear is in power transfer connection with the planetary gear transmission, the second gear is in meshing engagement with the first gear, the third gear is connected with the second electric machine, and the third gear is in meshing engagement with the second gear, both the second gear and the fourth gear being mounted on the first countershaft, and the fourth gear is in meshing engagement with a fifth gear of the differential.
7. The hybrid electromechanical coupling system according to claim 5, wherein the first power transmission device includes a first gear, a second gear, a first countershaft, and a fourth gear, the second power transmission device includes a third gear and a sixth gear, the first gear is in power transmitting connection with the planetary gear transmission, the second gear is in mesh with the first gear, the third gear is connected with the second electric machine, the third gear is in mesh with the sixth gear, the second gear, the fourth gear, and the sixth gear are all mounted on the first countershaft, and the fourth gear is in mesh with a fifth gear of the differential.
8. The hybrid electromechanical coupling system according to claim 7, wherein the second gear and the sixth gear are located on either side of the fourth gear.
9. The hybrid electromechanical coupling system according to claim 5, wherein the first power transmitting device includes a first gear in power transmitting connection with the planetary gear transmission, a second gear in mesh with the first gear, both the second gear and the fourth gear being mounted on the first countershaft, and a fourth gear in mesh with a fifth gear of the differential;
the second power transmission device comprises a third gear, a seventh gear, an eighth gear and a second intermediate shaft, the third gear is connected with the second motor, the seventh gear is meshed with the third gear, the seventh gear and the eighth gear are both mounted on the second intermediate shaft, and the eighth gear is meshed with a fifth gear of the differential.
10. The hybrid electromechanical coupling system according to claim 9, wherein the second countershaft is disposed parallel to the first countershaft.
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CN210454446U (en) * 2019-03-26 2020-05-05 王佩英 Hybrid power transmission device
CN112428813A (en) * 2020-11-28 2021-03-02 王佩英 Series-parallel hybrid power transmission device
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Publication number Priority date Publication date Assignee Title
CN203697946U (en) * 2014-02-20 2014-07-09 合肥工业大学 Oil, electricity and hydraulic pressure hybrid power drive system
CN106314126A (en) * 2016-08-29 2017-01-11 广州汽车集团股份有限公司 Electromechanical integrated hybrid power system and hybrid electrical vehicle
CN109318704A (en) * 2018-12-11 2019-02-12 上海汉老汽车科技有限公司 A kind of electric drive transmission device
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