CN116587832B - Four-power-source double-output multi-mode power coupling system - Google Patents

Four-power-source double-output multi-mode power coupling system Download PDF

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Publication number
CN116587832B
CN116587832B CN202310556001.3A CN202310556001A CN116587832B CN 116587832 B CN116587832 B CN 116587832B CN 202310556001 A CN202310556001 A CN 202310556001A CN 116587832 B CN116587832 B CN 116587832B
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China
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gear
motor
clutch
brake
planet carrier
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CN116587832A (en
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胡建军
刘人萍
刘子睿
贾美霞
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Chongqing University
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Chongqing University
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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
    • B60K6/38—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
    • B60K6/22—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
    • B60K6/387—Actuated clutches, i.e. clutches engaged or disengaged by electric, hydraulic or mechanical actuating means
    • 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
    • B60K2006/381—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 characterized by driveline brakes
    • 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)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a four-power source double-output multi-mode power coupling system, which belongs to the technical field of vehicle power systems and comprises an engine, a first motor, a second motor, a third motor, a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, two clutches, two brakes, a plurality of gears and two driving wheels. The invention can change the constraint relation between the system nodes by controlling the engagement and the disengagement of the two clutches and the two brakes, change the power source and the output path of the system, realize multi-mode switching and power transmission, be applicable to different running working conditions, fully utilize the high-efficiency area of the power source, thereby improving the power performance and the fuel economy of the system, solving the problems of single working mode, frequent work of an engine-generator set and excessive energy loss of the crawler transmission system of the existing double-motor coupling driving structure, and improving the overall working efficiency of the system.

Description

Four-power-source double-output multi-mode power coupling system
Technical Field
The invention relates to the technical field of vehicle power systems, in particular to a four-power-source double-output multi-mode power coupling system.
Background
Along with the promotion of national military forces and economy, traditional tracked vehicles gradually tend to be motorized and intelligent. The traditional tracked vehicle has the advantages that the structure is complex, the steering performance is poor, the energy loss is large, the steering performance and the energy utilization rate of the hybrid tracked vehicle can be effectively improved by adding the motor, the running vibration and noise of the tracked vehicle are reduced, and the fuel economy of the vehicle can be improved. The tracked vehicle is mainly divided into a series type, a parallel type and a series-parallel type, and due to a complex structure, the parallel type and the series-parallel type are less in application, the series type has the advantages of simple structure, flexible arrangement and the like, but secondary energy conversion can occur in the running process of the vehicle, and the energy utilization rate is reduced.
The prior Chinese patent with publication number of CN106342040B discloses an electromechanical compound transmission device of a series hybrid tracked vehicle, which comprises an energy storage device, a comprehensive controller, a speed-increasing planetary gear, a generator, a motor/generator M1, a motor/generator M2, two speed-reducing planetary gear and the like. The scheme can realize stepless speed change and stepless steering of the tracked vehicle, solves the problem of steering regeneration power circulation of the double-side motor type hybrid tracked vehicle through the power coupling mechanism between the two motors, and reduces the power requirement on the motors. However, the scheme has a larger occurrence frequency of the series mode, and the energy secondary conversion loss is more serious.
The prior Chinese patent with publication number of CN106926682B discloses a serial-parallel hybrid power transmission device of a tracked vehicle, which comprises an engine, a generator, two driving motors, four planetary gear mechanisms, a plurality of clutches, a brake and the like. The scheme is beneficial to reducing the longitudinal space of the transmission device, and effectively reduces the technical requirement and energy conversion loss of the motor. However, the engine according to this embodiment cannot be ensured to always operate in the optimum efficiency range by mechanical connection.
Disclosure of Invention
In order to improve the power performance and the fuel economy of a power system, the invention provides a four-power-source double-output multi-mode power coupling system.
The technical scheme adopted for solving the technical problems is as follows: a four-power source double-output multimode power coupling system comprises an engine, a first motor, a second motor, a third motor, a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a first clutch, a second clutch, a first brake, a second brake, a left driving wheel and a right driving wheel;
the first planetary gear mechanism comprises a first sun gear, a first planet gear, a first gear ring and a first planet carrier; the second planetary gear mechanism comprises a second sun gear, a second planet gear, a second gear ring and a second planet carrier; the third planetary gear mechanism comprises a third sun gear, a third planet gear, a third gear ring and a third planet carrier;
the first motor is in meshed transmission connection with the first gear through a second gear, the left side of the first planet carrier is connected with a left driving wheel, the right side of the first planet carrier is connected with a second gear ring, the first gear ring is connected with the second planet carrier through the joint of a first clutch, and a first brake is arranged on the first gear ring;
the second motor is meshed with the fifth gear through a sixth gear to drive a second sun gear, the right side of the second planet carrier is connected with a right driving wheel, the second gear ring is meshed with the fourth gear through a third gear to drive and is connected with the third planet carrier by engaging a second clutch, and a second brake is arranged on the third planet carrier; the engine is in meshed transmission connection with a third gear ring through a seventh gear and an eighth gear, and the third motor is in transmission connection with a third sun gear through a third sun gear shaft.
Further, the locking part of the first brake is connected with the first gear ring through a spline, and the fixing part is connected with the first planetary gear mechanism shell through a flange; the locking part of the second brake is connected with the third planet carrier through a spline, and the fixing part is connected with the third planetary gear mechanism shell through a flange.
Further, the first clutch and the second clutch are each wet-type multi-plate clutches.
Further, the third motor, the third sun gear and the seventh gear are coaxially arranged.
Further, the third gear ring and the coaxial gear are respectively in an integral structure.
Further, four straight running modes are included:
straight running mode 1: the first motor and the second motor are in a driving state, the first clutch and the second brake are engaged, the second clutch is separated from the first brake, the first clutch connects the first gear ring with the second planet carrier, and the engine and the third motor do not work;
straight running mode 2: the first motor and the second motor are in a driving state, the first clutch and the second brake are engaged, the second clutch is separated from the first brake, the first clutch connects the first gear ring with the second planet carrier, the engine drives the third motor to generate electricity, and electric energy is transmitted to the first motor and the second motor;
straight running mode 3: the first motor, the second motor and the third motor are all in a driving state, the first brake and the second clutch are engaged, and the first clutch and the second brake are separated;
straight running mode 4: the first motor, the second motor and the third motor are all in a driving state, the first clutch and the second clutch are combined, and the first brake and the second brake are separated.
Compared with the prior art, the invention has the beneficial effects that:
the four-power source double-output multi-mode power coupling system can change the constraint relation between system nodes by controlling the connection and disconnection of the two clutches and the two brakes, so that the power source and the output path of the system are changed, multi-mode switching is realized, and power transmission is performed. The transmission system configuration with multiple modes can select different modes under different running working conditions so as to fully utilize the high-efficiency area of the power source, thereby improving the power performance and the fuel economy of the system, effectively solving the problem that the energy secondary conversion is increased due to the single working mode and frequent working of the engine-generator set of the crawler transmission system with the double-motor coupling driving structure, reducing the frequency of the energy secondary conversion and improving the overall working efficiency of the system.
Drawings
FIG. 1 is a schematic diagram of a four-power source dual-output multi-mode power coupling system of the present invention.
Fig. 2 is a schematic diagram of the energy flow in the straight traveling mode 1 in the embodiment of the present invention.
Fig. 3 is a schematic diagram of the energy flow in the straight traveling mode 2 in the embodiment of the present invention.
Fig. 4 is a schematic diagram of the energy flow in straight traveling mode 3 in the embodiment of the present invention.
Fig. 5 is a schematic diagram of the energy flow in straight traveling mode 4 in the embodiment of the present invention.
Fig. 6 is a schematic diagram of the energy flow in the curve running mode 1 in the embodiment of the present invention.
In the figure, 1, an engine; 2. a seventh gear; 3. a third motor; 4. a third sun gear shaft; 5. a third planet wheel; 6. a second brake; 7. a third carrier; 8. a third sun gear; 9. a second clutch; 10. a third gear; 11. a fourth gear; 12. a second planet wheel; 13. a first planet; 14. a first sun gear; 15. a first gear; 16. a left driving wheel; 17. a first brake; 18. a first motor; 19. a second gear; 20. a first planet carrier; 21. a first ring gear; 22. a first clutch; 23. a second carrier; 24. a second ring gear; 25. a second sun gear; 26. a sixth gear; 27. a second motor; 28. a right driving wheel; 29. a fifth gear; 30. a third ring gear; 31. and an eighth gear.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. Wherein the drawings are for illustrative purposes only and are shown in schematic, non-physical, and not intended to limit the invention; for the purpose of better illustrating embodiments of the invention, certain elements of the drawings may be omitted, enlarged or reduced and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numbers in the drawings of embodiments of the invention correspond to the same or similar components; in the description of the present invention, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, it is only for convenience of describing the present invention and simplifying the description, but not for indicating or suggesting that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, so that the terms describing the positional relationship in the drawings are merely for exemplary illustration and should not be construed as limiting the present invention, and that the specific meaning of the above terms may be understood by those of ordinary skill in the art according to the specific circumstances.
The invention discloses a four-power-source double-output multi-mode power coupling system.
Referring to fig. 1, the four-power source dual-output multi-mode power coupling system includes an engine 1, a first motor 18, a second motor 27, a third motor 3, a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a first clutch 22, a second clutch 9, a first brake 17, a second brake 6, a left drive wheel 16, and a right drive wheel 28. Wherein, the first planetary gear mechanism comprises a first sun gear 14, a first planet gear 13, a first gear ring 21 and a first planet carrier 20; the second planetary gear mechanism comprises a second sun gear 25, a second planet gear 12, a second gear ring 24 and a second planet carrier 23; the third planetary gear mechanism comprises a third sun gear 8, a third planet wheel 5, a third ring gear 30 and a third planet carrier 7.
The first motor 18 is in meshed transmission connection with the first gear 15 through the second gear 19, the left side of the first planet carrier 20 is connected with the left driving wheel 16, the right side of the first planet carrier 20 is connected with the second gear ring 24, the first gear ring 21 is connected with the second planet carrier 23 through the engagement of the first clutch 22, and the first brake 17 is arranged on the first gear ring 21;
the second motor 27 is meshed with the fifth gear 29 through the sixth gear 26 to drive the second sun gear 25, the right side of the second planet carrier 23 is connected with the right driving wheel 28, the second gear ring 24 is meshed with the fourth gear 11 through the third gear 10 to drive and engage the second clutch 9 to be connected with the third planet carrier 7, and the second brake 6 is arranged on the third planet carrier 7. The engine 1 is in meshed transmission connection with a third gear ring 30 through a seventh gear 2 and an eighth gear 31, and the third motor 3 is in transmission connection with a third sun gear 8 through a third sun gear shaft 4.
In the present embodiment, the locking portion of the first brake 17 is connected to the first ring gear 21 by a spline (not shown in the figure), and the fixing portion is connected to the first planetary gear mechanism housing by a flange (not shown in the figure); the locking portion of the second brake 6 is connected to the third carrier 7 by a spline (not shown in the figure), and the fixing portion is connected to the third planetary gear mechanism housing by a flange (not shown in the figure). The third motor 3, the third sun gear 8 and the seventh gear 2 are coaxially arranged. The third gear ring 30 and the coaxial gears thereof are respectively in an integrated structure, so that the assembly is convenient, and the structure is more stable and reliable. The first clutch 22 and the second clutch 9 are wet multi-plate clutches, and the clutch has the advantages of large transmission torque, small volume, long service life, stable working process, good heat dissipation and the like, and can be effectively suitable for large-tonnage vehicles and high-load running conditions.
The four-power source double-output multi-mode power coupling system has multiple working modes under the working conditions of straight running and turning, and only all modes of straight running and curve running mode 1 are taken as examples for illustration, and the other modes can be analyzed by the same method for a person skilled in the art.
The working state of the executing mechanism in each working mode is shown in a table 1, wherein C1 is a first clutch 22, C2 is a second clutch 9, and B1 is a first brake 17; b2 is a second brake 6; the specific modes are detailed as follows:
table 1 working mode actuator table
(1) Straight running mode 1: namely, when the SOC of the battery is sufficient, the system is in a pure electric working mode; the first motor 18 and the second motor 27 are both in a driven state, the first clutch 22 and the second brake 6 are engaged, the second clutch 9 and the first brake 17 are disengaged, the first clutch 22 connects the first ring gear 21 with the second carrier 23, and the engine 1 and the third motor 3 are not operated. Therefore, under the straight-line driving working condition, the rotation speeds of all points on the first planet row and the second planet row are equal.
Therefore, the power transmission path of the output of the first motor 18 is: a second gear 19, a first gear 15, a first sun gear 14, a first planet gear 13, a first planet carrier 20, a left drive wheel 16. The power transmission path of the output of the second motor 27 is: the sixth gear 26, the fifth gear 29, the second sun gear 25, the second planet gears 12, the second planet carrier 23 and the right driving wheel 28 can realize mute running of the tracked vehicle in the working mode, and riding comfort is improved. The energy flow path of the system in this mode is shown in fig. 2.
(2) Straight running mode 2: namely, when the SOC (state of charge) of the battery is insufficient, the system is in a series working mode; the first motor 18 and the second motor 27 are both in a driving state, the first clutch 22 and the second brake 6 are engaged, the second clutch 9 and the first brake 17 are separated, the first clutch 22 connects the first gear ring 21 with the second planet carrier 23, the engine 1 drives the third motor 3 to generate electricity, and then the electric energy is transmitted to the first motor 18 and the second motor 27.
The power transmission path of the output of the first motor 18 is: a second gear 19, a first gear 15, a first sun gear 14, a first planet gear 13, a first planet carrier 20, a left drive wheel 16. The power transmission path of the output of the second motor 27 is: a sixth gear 26, a fifth gear 29, a second sun gear 25, a second planet wheel 12, a second planet carrier 23, a right drive wheel 28. The tandem mode generally has the secondary conversion of energy and has relatively low efficiency, but the engine 1 and the third motor 3 are respectively connected to the gear ring and the sun gear of the third planetary row, and the planetary gear mechanism has the advantages of compact structure, high transmission efficiency, large bearing capacity and the like. Therefore, the power generation efficiency of the motor can be effectively improved in the mode, and the driving range of the vehicle can be prolonged; the motion rule characteristic equation of the planet row can also know that the mode can achieve the effect of speed increase through the gear ratio of the planet row gear transmission. The energy flow path of the system in this mode is shown in fig. 3.
(3) Straight running mode 3: the first motor 18, the second motor 27 and the third motor 3 are all in a driving state, the first brake 17 and the second clutch 9 are engaged, and the first clutch 22 and the second brake 6 are disengaged.
The power transmission path of the output of the first motor 18 is: a second gear 19, a first gear 15, a first sun gear 14, a first planet gear 13. The power transmission path of the output of the second motor 27 is: a sixth gear 26, a fifth gear 29, a second sun gear 25, a second planet gear 12. The power transmission path of the engine 1 output is: the eighth gear 31, the seventh gear 2, the third ring gear 30, the third planetary gear 5, and the power transmission path of the output of the third motor 3 is: the third sun gear shaft 4, the third sun gear 8 and the third planet gears 5, the power transmitted by the engine 1 and the third motor 3 is converged at the third planet carrier 7, and the power transmission path after the convergence is as follows: the third planet carrier 7, the third gear 10, the fourth gear 11, the second ring gear 24, and after the second ring gear 24, are split into two paths, the first path is: the power output from the first motor 18 is combined at the first carrier 20 and then output to the left driving wheel 16, and the second path is: the power output from the second motor 27 is merged at the second carrier 23 and then output to the right driving wheel 28.
The mode is suitable for running working conditions with the speed lower than 30km/h, torque decoupling of the engine 1 and wheels is achieved, namely, the working point of the engine 1 is not affected by the running working conditions, the working point of the engine 1 can be freely selected, and the compensation required torque is regulated through the third motor 3, so that the engine 1 always works in a high-efficiency area. In addition, the power of the engine 1 and the power of the third motor 3 are output through the third planetary gear mechanism, so that four power sources work simultaneously, and the power performance of the whole vehicle is improved. The energy flow path of the system in this mode is shown in fig. 4.
(4) Straight running mode 4: the first motor 18, the second motor 27 and the third motor 3 are all in a driving state, the first clutch 22 and the second clutch 9 are engaged, and the first brake 17 and the second brake 6 are disengaged.
The power transmission path of the output of the first motor 18 is: a second gear 19, a first gear 15, a first sun gear 14, a first planet gear 13. The power transmission path of the output of the second motor 27 is: a sixth gear 26, a fifth gear 29, a second sun gear 25, a second planet gear 12. The power transmission path of the engine 1 output is: an eighth gear 31, a seventh gear 2, a third ring gear 30, and third planet gears 5. The power transmission path of the third motor 3 output is: a third sun gear shaft 4, a third sun gear 8 and a third planet gear 5. The power transmitted by the engine 1 and the third motor 3 is merged at the third carrier 7, and the merged power transmission path is: the third planet carrier 7, the third gear 10, the fourth gear 11, the second ring gear 24, and after the second ring gear 24, are split into two paths, the first path is: the power output from the first motor 18 is combined at the first carrier 20 and then output to the left driving wheel 16; the second path is: the power output from the second motor 27 is merged at the second carrier 23 and then output to the right driving wheel 28.
The mode is suitable for running working conditions that the speed of the vehicle is higher than 30km/h, the engine 1 and the third motor 3 output power to the first planetary gear set and the second planetary gear set through the third planetary gear mechanism, the combined work of four power sources is realized, and the power performance of the whole vehicle is improved. Under different driving conditions and power requirements, according to the rotation speed and torque rule characteristics of the planetary gear mechanism, the torque and rotation speed of the third motor 3 can be regulated, so that the engine 1 can freely select a working point, and the fuel economy of the whole vehicle is improved on the premise of meeting the required power. The energy flow path of the system in this mode is shown in fig. 5.
(5) Curve travel mode 1: namely, when the SOC of the battery is sufficient, the system is in a pure electric working mode; the first motor 18 and the second motor 27 are both in a driven state, the first clutch 22 and the second brake 6 are engaged, the second clutch 9 and the first brake 17 are disengaged, the first clutch 22 connects the first ring gear 21 with the second carrier 23, and the engine 1 and the third motor 3 are not operated.
The tracked vehicle has two paths for power transmission of the first motor 18 and the second motor 27 in cornering conditions. The first motor 18 power transmission path is: a second gear 19, a first gear 15, a first sun gear 14, a first planet gear 13. The second motor 27 has a power transmission path of: a sixth gear 26, a fifth gear 29, a second sun gear 25, second planet gears 12, a second planet carrier 23, a first ring gear 21, a first planet gear 13. The power transmission paths of the first motor 18 and the second motor 27 are merged at the first carrier 20, and the merged power transmission paths are: the first carrier 20 and the left driving wheel 16, and the power transmission path of the first motor 18 is: the second gear 19, the first gear 15, the first sun gear 14, the first planet gears 13, the first planet carrier 20, the second ring gear 24, the second planet gears 12. The second motor 27 has a power transmission path of: a sixth gear 26, a fifth gear 29, a second sun gear 25, a second planet gear 12. The power transmission paths of the first motor 18 and the second motor 27 are merged at the second carrier 23, and the merged power transmission paths are: a second planet carrier 23, a right drive wheel 28. The energy flow path of the system in this mode is shown in fig. 6.
The invention can change the constraint relation between the system nodes by controlling the connection and disconnection of the two clutches and the two brakes, thereby changing the power source and the output path of the system, realizing multi-mode switching and power transmission. The transmission system configuration with multiple modes can select different modes under different running working conditions so as to fully utilize the high-efficiency area of the power source, thereby improving the power performance and the fuel economy of the system, effectively solving the problem that the energy secondary conversion is increased due to the single working mode and frequent working of the engine-generator set of the crawler transmission system with the double-motor coupling driving structure, reducing the frequency of the energy secondary conversion and improving the overall working efficiency of the system.
With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (6)

1. A four-power source double-output multimode power coupling system is characterized in that: comprises an engine (1), a first motor (18), a second motor (27), a third motor (3), a first planetary gear mechanism, a second planetary gear mechanism, a third planetary gear mechanism, a first clutch (22), a second clutch (9), a first brake (17), a second brake (6), a left driving wheel (16) and a right driving wheel (28);
the first planetary gear mechanism comprises a first sun gear (14), a first planet gear (13), a first gear ring (21) and a first planet carrier (20); the second planetary gear mechanism comprises a second sun gear (25), a second planet gear (12), a second gear ring (24) and a second planet carrier (23); the third planetary gear mechanism comprises a third sun gear (8), a third planet gear (5), a third gear ring (30) and a third planet carrier (7);
the first motor (18) is in meshed transmission connection with the first gear (15) through the second gear (19), the left side of the first planet carrier (20) is connected with the left driving wheel (16), the right side of the first planet carrier is connected with the second gear ring (24), the first gear ring (21) is connected with the second planet carrier (23) through the engagement of the first clutch (22), and the first brake (17) is arranged on the first gear ring (21);
the second motor (27) is meshed with a fifth gear (29) through a sixth gear (26) to drive a second sun gear (25), the right side of the second planet carrier (23) is connected with a right driving wheel (28), the second gear ring (24) is meshed with a fourth gear (11) through a third gear (10) to drive and engage a second clutch (9) to be connected with a third planet carrier (7), and a second brake (6) is arranged on the third planet carrier (7); the engine (1) is in meshed transmission connection with a third gear ring (30) through a seventh gear (2) and an eighth gear (31), and the third motor (3) is in transmission connection with a third sun gear (8) through a third sun gear shaft (4).
2. The four-power source dual-output multi-mode power coupling system of claim 1, wherein: the locking part of the first brake (17) is connected with the first gear ring (21) through a spline, and the fixing part is connected with the first planetary gear mechanism shell through a flange; the locking part of the second brake (6) is connected with the third planet carrier (7) through a spline, and the fixing part is connected with the third planetary gear mechanism shell through a flange.
3. The four-power source dual-output multi-mode power coupling system of claim 1, wherein: the first clutch (22) and the second clutch (9) are wet multi-plate clutches.
4. The four-power source dual-output multi-mode power coupling system of claim 1, wherein: the third motor (3), the third sun gear (8) and the seventh gear (2) are coaxially arranged.
5. The four-power source dual-output multi-mode power coupling system of claim 1, wherein: the third gear ring (30) and the coaxial gear are respectively of an integrated structure.
6. A four-power source dual output multi-mode power coupling system as in any of claims 1-5, wherein: four straight running modes are included:
straight running mode 1: the first motor (18) and the second motor (27) are in a driving state, the first clutch (22) and the second brake (6) are engaged, the second clutch (9) is separated from the first brake (17), the first clutch (22) connects the first gear ring (21) with the second planet carrier (23), and the engine (1) and the third motor (3) do not work;
straight running mode 2: the first motor (18) and the second motor (27) are in a driving state, the first clutch (22) and the second brake (6) are engaged, the second clutch (9) is separated from the first brake (17), the first clutch (22) connects the first gear ring (21) with the second planet carrier (23), and the engine (1) drives the third motor (3) to generate electricity and transmits the electric energy to the first motor (18) and the second motor (27);
straight running mode 3: the first motor (18), the second motor (27) and the third motor (3) are all in a driving state, the first brake (17) and the second clutch (9) are engaged, and the first clutch (22) and the second brake (6) are separated;
straight running mode 4: the first motor (18), the second motor (27) and the third motor (3) are all in a driving state, the first clutch (22) and the second clutch (9) are engaged, and the first brake (17) and the second brake (6) are separated.
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