CN114179604A - Variable speed coupling device of oil-electricity hybrid power system - Google Patents

Variable speed coupling device of oil-electricity hybrid power system Download PDF

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Publication number
CN114179604A
CN114179604A CN202111661171.5A CN202111661171A CN114179604A CN 114179604 A CN114179604 A CN 114179604A CN 202111661171 A CN202111661171 A CN 202111661171A CN 114179604 A CN114179604 A CN 114179604A
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gear
shaft
planet
ring
sun gear
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CN202111661171.5A
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CN114179604B (en
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黄立然
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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
    • 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
    • B60K6/24—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 combustion engines
    • 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
    • B60K6/38—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
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • 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)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention discloses a variable speed coupling device of an oil-electricity hybrid power system, which is characterized in that a double-planet-carrier structure is arranged in a coupling box body, a planet wheel and a sun wheel are respectively arranged on the double-planet-carrier structure and a middle inner shaft, the planet wheel and the sun wheel are adopted for transmission, each planet wheel is meshed with different gear ring structures, gear transmission output under different transmission ratios is realized, a brake in the coupling box body brakes the gear rings, so that the meshing transmission stopping process of different planet wheels is realized, different gear rings are fixed by jointing the brake to realize input and output of different power sources, torques and rotating speeds, the transmission structure is stable and stable in control, an effective coupling structure is provided for double-output control of the oil-electricity hybrid power system, the respective output of oil-electricity power is realized, and the energy utilization efficiency is improved.

Description

Variable speed coupling device of oil-electricity hybrid power system
Technical Field
The invention belongs to the field of vehicle transmission, and particularly relates to a variable speed coupling device of a gasoline-electric hybrid power system.
Background
The pure electric vehicle is relatively simple and mature in technology, but the storage quantity of the storage battery is too small, the service life is short, the price is high, and the cost performance of the electric vehicle is difficult to surpass that of the traditional fuel vehicle due to the factors; on the other hand, the traditional fuel automobile has low fuel utilization rate, high fuel consumption, large exhaust emission and serious pollution, so that a fuel-electric Hybrid Electric Vehicle (HEV) which integrates the advantages of the fuel automobile and the electric automobile becomes a hot spot of the current automobile technology development. At present, an electric power insertion hybrid mode, namely oil-electric hybrid power output, is mainly adopted, an electric power drive and an engine or a power engine are combined on one vehicle by an oil-electric hybrid vehicle, the electric power output and the engine output power of the existing oil-electric hybrid vehicle are complex in coupling structure, and the power output is unstable in the power switching process, so that the electric power output and the engine output are unstable.
Disclosure of Invention
The invention aims to provide a variable speed coupling device of a gasoline-electric hybrid power system, which overcomes the defects of the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a variable speed coupling device of a gasoline-electric hybrid power system comprises a coupling box body, wherein an inner shaft is arranged in the coupling box body, one end of the inner shaft is an input end, the other end of the inner shaft is an output end, the inner shaft is sequentially sleeved with a first sun gear outer shaft and a second sun gear outer shaft from the input end to the output end, a first sun gear, a second sun gear, a third sun gear, a first planet carrier, a fourth sun gear, a fifth sun gear, a second planet carrier and a reverse gear ring are sequentially sleeved on the first sun gear outer shaft from the input end to the output end of the inner shaft, and a sixth sun gear, a third planet carrier, a seventh sun gear and an output gear are sequentially sleeved on the second sun gear outer shaft from the input end to the output end of the inner shaft; the seventh sun gear and the output gear rotate coaxially;
the first planet carrier is connected with the second planet carrier through a coupler;
the first planet carrier is provided with a first planet wheel, a second planet wheel and a third planet wheel; a fourth planet wheel is arranged on the second planet carrier;
the inner ring of the first planet wheel is meshed with the outer ring of the third sun wheel, and the inner ring of the second planet wheel is meshed with the outer ring of the fourth sun wheel; the inner ring of the third planetary gear is meshed with the outer ring of the reverse gear ring, the inner ring of the reverse gear ring is meshed with the outer ring of the fourth planetary gear, and the inner ring of the fourth planetary gear is meshed with the outer ring of the fifth sun gear;
a fifth planet wheel and a sixth planet wheel are arranged on the third planet carrier, the inner ring of the fifth planet wheel is meshed with the outer ring of the sixth sun wheel, and the inner ring of the sixth planet wheel is meshed with the outer ring of the seventh sun wheel;
the outer rings of the first planet wheel, the second planet wheel, the third planet wheel, the fifth planet wheel and the sixth planet wheel are respectively meshed with a gear ring, each gear ring is respectively connected with a brake, and the brakes are fixed on the inner wall of the coupling box body.
Furthermore, the coupling specifically adopts a Yijida coupling, and the first planet carrier and the second planet carrier are connected through three couplings in a circumferential array.
Furthermore, the planet wheels on the uniform circumference of each planet carrier are all in a multi-wheel array mode.
Further, a shaft shoulder is arranged on the inner shaft and positioned between the first sun gear outer shaft and the second sun gear outer shaft, a bearing is arranged between the first sun gear outer shaft and the shaft shoulder on the inner shaft, and the end part of the first sun gear outer shaft is limited through the bearing; and a bearing is arranged between the shaft shoulder on the outer shaft and the inner shaft of the second sun gear.
Further, a sleeve is arranged between two adjacent sun gears or between the sun gear and the planet carrier.
Further, an output shaft of the motor is connected with a motor output gear, an outer ring of the engine output gear is meshed with an outer ring of the first sun gear, an output shaft of the engine is connected with an engine output gear, an output shaft of the generator is connected with a generator gear, the engine output gear is meshed with the generator gear, an output shaft of the engine is provided with a flywheel, the flywheel is meshed with the motor output gear through a first clutch, and an outer ring of the flywheel is meshed with an outer ring of the second sun gear.
Further, the first clutch adopts an overrunning clutch.
Furthermore, the brake adopts a multi-friction-piece brake.
Furthermore, inner friction plates are arranged on the outer ring of the gear ring, the brake comprises a front friction pressure plate and a rear friction pressure plate, the front friction pressure plate and the rear friction pressure plate are sleeved on the guide shaft, a plurality of outer friction plates are arranged between the front friction pressure plate and the rear friction pressure plate, the inner friction plates and the outer friction plates are arranged in a staggered mode, each inner friction plate is located between two outer friction plates, the outer friction plates are sleeved on the guide shaft, and a return spring is arranged between every two adjacent outer friction plates; wherein the rear friction pressure plate or the front friction pressure plate is connected with the pressure device.
Furthermore, a second clutch is arranged on an output shaft of the generator.
Compared with the prior art, the invention has the following beneficial technical effects:
the invention relates to a variable speed coupling device of an oil-electricity hybrid power system, which is characterized in that a double-planet-carrier structure is arranged in a coupling box body, a planet wheel and a sun wheel are respectively arranged on the double-planet-carrier structure and a middle inner shaft, the planet wheel and the sun wheel are adopted for transmission, each planet wheel is meshed with different gear ring structures, gear transmission output under different transmission ratios is realized, a brake in the coupling box body brakes the gear rings, so that the meshing transmission stopping process of different planet wheels is realized, different gear rings are fixed by jointing the brake to realize input and output of different power sources, torques and rotating speeds, the transmission structure is stable and stable in control, an effective coupling structure is provided for double-output control of the oil-electricity hybrid power system, the respective output of oil-electricity power is realized, and the energy utilization efficiency is improved.
Furthermore, the engine and the motor are connected through the overrunning clutch, the engine is connected with the outer ring of the overrunning clutch, and the motor is connected with the inner ring of the overrunning clutch, so that the flywheel can be driven by the motor to start the engine, the rotating speed of the motor can be increased by increasing the rotating speed of the engine, and the power source can be stably switched from the motor to the engine during gear shifting.
The operation of the motor is not influenced by the operation of the engine, so that the engine can work at any time, the engine can still keep low rotation speed even when the rotation speed of the motor is high due to the large rotation speed ratio, and the redundant fuel consumption is avoided.
Drawings
Fig. 1 is a schematic structural diagram in an embodiment of the present invention.
Fig. 2 is a schematic sectional view of the internal structure of the variable speed coupling device according to the embodiment of the present invention.
Fig. 3 is a schematic perspective view of the inside of the speed change coupling device according to the embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a brake in an embodiment of the invention.
Wherein, 1, coupling the box body; 2. an inner shaft; 3. a first sun gear outer shaft; 4. a second sun gear outer shaft; 5. an output gear; 6. a bearing cap; 7. a first sun gear; 8. a second sun gear; 9. a third sun gear; 10. a first carrier; 11. a fourth sun gear; 12. a fifth sun gear; 13. a second planet carrier; 14. a reverse gear ring gear; 15. a sixth sun gear; 16. a third carrier; 17. a seventh sun gear; 18. a coupling; 19. a first planet gear; 20. a second planet wheel; 21. a third planet gear; 22. a fourth planet gear; 23. a fifth planetary gear; 24. a sixth planet wheel; 25. a brake; 26. a first sleeve; 27. a second sleeve; 28. a third sleeve; 29. a fourth sleeve; 30. a fifth sleeve; 31. a first ring gear; 32. a second ring gear; 33. a third ring gear; 34. a fourth ring gear; 35. a fifth ring gear; 36. a first planet row; 37. a second planet row; 38. a third planet row; 39. a fourth planet row; 40. a fifth planet row; 41. an engine output gear; 42. a generator gear; 43. a flywheel; 44. a first clutch; 45. a motor output gear; 46. a second clutch; 47. an inner friction plate; 48. a front friction platen; 49. a back friction platen; 50. a guide shaft; 51. an outer friction plate; 52. and a return spring.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
As shown in fig. 1 and 3, a variable speed coupling device of a hybrid oil-electric power system includes a coupling box 1, an inner shaft 2 is installed in the coupling box 1, one end of the inner shaft 2 is an input end, and the other end is an output end, the inner shaft 2 is sequentially sleeved with a first sun gear outer shaft 3 and a second sun gear outer shaft 4 from the input end to the output end, a first sun gear 7, a second sun gear 8, a third sun gear 9, a first planet carrier 10, a fourth sun gear 11, a fifth sun gear 12, a second planet carrier 13 and a reverse gear ring 14 are sequentially sleeved on the first sun gear outer shaft 3 from the input end to the output end of the inner shaft, and a sixth sun gear 15, a third planet carrier 16, a seventh sun gear 17 and an output gear 5 are sequentially sleeved on the second sun gear outer shaft 4 from the input end to the output end of the inner shaft; the seventh sun gear 17 and the output gear 5 rotate coaxially;
the first planet carrier 10 and the second planet carrier 13 are connected through a coupler 18, the coupler 18 specifically adopts a Yihe coupler, and the first planet carrier 10 and the second planet carrier 13 are connected through three couplers in a circumferential array.
The first planet carrier 10 is provided with a first planet wheel 19, a second planet wheel 20 and a third planet wheel 21; a fourth planet wheel 22 is arranged on the second planet carrier 13;
the inner ring of the first planet wheel 19 is meshed with the outer ring of the third sun wheel 9, and the inner ring of the second planet wheel 20 is meshed with the outer ring of the fourth sun wheel 11; the inner ring of the third planet wheel 21 is meshed with the outer ring of the reverse gear ring gear 14, the inner ring of the reverse gear ring gear 14 is meshed with the outer ring of the fourth planet wheel 22, and the inner ring of the fourth planet wheel 22 is meshed with the outer ring of the fifth sun wheel 12;
a fifth planet wheel 23 and a sixth planet wheel 24 are arranged on the third planet carrier 16, the inner ring of the fifth planet wheel 23 is meshed with the outer ring of the sixth sun wheel 15, and the inner ring of the sixth planet wheel 24 is meshed with the outer ring of the seventh sun wheel 17;
the outer rings of the first planet wheel 19, the second planet wheel 20, the third planet wheel 21, the fifth planet wheel 23 and the sixth planet wheel 24 are respectively meshed with a gear ring, each gear ring is respectively connected with a brake 25, and the brakes 25 are fixed on the inner wall of the coupling box body 1.
As shown in fig. 3, the planet wheels on the uniform circumference of each planet carrier are in a multi-wheel array mode, for example, three first planet wheels 19 are circumferentially arranged on the first planet carrier 10 to improve the smoothness of transmission. The planet wheels with the same circumference form a planet wheel set, and the planet wheel set with the same group can also be arranged in a circumferential array of four planet wheels.
As shown in fig. 2, a first ring gear 31 is engaged with the outer ring of the first planet gear 19, a second ring gear 32 is engaged with the outer ring of the second planet gear 20, a third ring gear 33 is engaged with the outer ring of the third planet gear 21, a fourth ring gear 34 is engaged with the outer ring of the fifth planet gear 23, and a fifth ring gear 35 is engaged with the outer ring of the sixth planet gear 24.
A shaft shoulder is arranged on the inner shaft 2 and positioned between the first sun gear outer shaft 3 and the second sun gear outer shaft 4, a bearing is arranged between the first sun gear outer shaft 3 and the shaft shoulder on the inner shaft 2, and the end part of the first sun gear outer shaft 3 is limited by the bearing; a bearing is also arranged between the shaft shoulders on the outer shaft 4 and the inner shaft 2 of the second sun gear, an output gear 5 is sleeved at the outer end of the outer shaft 3 of the first sun gear, and the end part of the output gear 5 is installed and limited through the end part of a bearing cover 6.
The second sun gear 8 and the third sun gear 9 are linked and are in key connection or in a double-row gear structure.
As shown in fig. 2, a sleeve is provided between two adjacent sun gears or between the sun gear and the planet carrier, for example, a first sleeve 26 is provided between the second sun gear 8 and the first sun gear 7, a second sleeve 27 is provided between the first planet carrier 10 and the fourth sun gear 11, a third sleeve 28 is provided between the fourth sun gear 11 and the fifth sun gear 12, a fourth sleeve 29 is provided between the second planet carrier 13 and the reverse gear ring gear 14, and a fifth sleeve 30 is provided between the sixth sun gear 15 and the third planet carrier 16.
As shown in fig. 1, a motor output gear 45 is connected to an output shaft of the motor, an outer ring of the engine output gear 40 is meshed with an outer ring of the first sun gear 7, an engine output gear 41 is connected to an output shaft of the engine, a generator gear 42 is connected to an output shaft of the generator, the engine output gear 41 is meshed with the generator gear 42, a flywheel 43 is mounted on an output shaft of the engine, the flywheel 43 is meshed with the motor output gear 40 through a first clutch 44, and an outer ring of the flywheel 43 is meshed with an outer ring of the second sun gear 8.
The output shaft of the generator is provided with a second clutch 46. The first clutch 44 is an overrunning clutch.
In this application, the position of the planet wheel corresponding to the first ring gear 31 is the first planet row 36, and the first ring gear 31 is separated into K by the brakeHair-like deviceControlling; the position of the planet wheel corresponding to the second ring gear 32 is the second planet row 37, and the brake separation of the second ring gear 32 is KElectric powerControlling; the position of the planet wheel corresponding to the third gear ring 33 is a third planet row 38, and the brake separation of the third gear ring 33 is KFalling downControlling; the position of the planet wheel corresponding to the fourth gear ring 34 is a fourth planet row 39, and the fourth gear ring 34 is braked and separated into K by a brake1Controlling; the position of the planet wheel corresponding to the fifth gear ring 35 is the fifth planet row 40, and the brake separation of the fifth gear ring 35 is K2And (5) controlling.
The brake 25 is a multi-friction-plate brake, as shown in fig. 4, taking an enlarged view of the first ring gear 31 engaged with the outer ring of the first planet gear 19 as an example, an inner friction plate 47 is arranged on the outer ring of the first ring gear 31, the brake 25 includes a front friction pressure plate 48 and a rear friction pressure plate 49, the front friction pressure plate 48 and the rear friction pressure plate 49 are sleeved on the guide shaft 50, a plurality of outer friction plates 51 are arranged between the front friction pressure plate 48 and the rear friction pressure plate 49, the inner friction plates 47 and the outer friction plates 51 are arranged in a staggered manner, each inner friction plate 47 is located between two outer friction plates 51, the outer friction plates 51 are sleeved on the guide shaft 50, and a return spring 52 is arranged between two adjacent outer friction plates 51; the rear friction pressure plate 49 or the front friction pressure plate 48 is connected with a pressure device, and the rear friction pressure plate 49 or the front friction pressure plate 48 is pushed by the pressure device to move, so that the outer friction plates 51 are squeezed with each other, the friction locking of the inner friction plates 47 is realized, and the rotation of the gear ring is limited.
This application pressure device adopts hydraulic means, and back friction pressure disk 49 or preceding friction pressure disk 48 are as for the hydraulic pressure intracavity, through the activity of hydraulic oil control back friction pressure disk 49 or preceding friction pressure disk 48 in the hydraulic pressure intracavity, and back friction pressure disk 49 or preceding friction pressure disk 48 move with the mode of piston in the hydraulic pressure intracavity.
Pressure oil enters a cavity between the pressure plate and the piston from the radial hole to push the piston to move left, the spring is compressed, the inner friction plate and the outer friction plate are pressed together, the brake is engaged, and the gear ring connected with the inner friction plate is fixed, so that gear replacement is realized.
The input and output of different power sources, torques and rotational speeds are realized by fixing different gear rings by engaging a brake, where KHair-like deviceKElectric powerKFalling downK1K2Are all brake controlled. Pressure oil enters a cavity of the rear friction pressure plate 49 or the front friction pressure plate 48 from the radial hole, the rear friction pressure plate 49 or the front friction pressure plate 48 moves to the left, the inner friction plate and the outer friction plate are pressed together by the compression spring, the brake is engaged, the gear ring connected with the inner friction plate is fixed, and gear replacement is achieved. The engine can work at any time, and the engine can still keep low rotating speed even when the rotating speed of the motor is high due to the high rotating speed ratio, so that redundant fuel consumption is avoided. When the engine reaches a certain rotating speed, the engine is connected with the clutch of the generator, so that the engine drives the generator to operate and further charge the storage battery.
After the vehicle is ignited, the engine keeps idling, when only the motor is used as a power source or the vehicle is braked, the second clutch 46 is connected, the engine charges the storage battery through the generator, when the engine is used as the power source, the clutch is released, and the engine torque is totally output as power.
The specific operation for realizing different gears, namely power source input, is as follows:
gear 1: kElectric power、K1The connection is a first driving gear, and is used for the processes of starting, driving in urban areas and 0-70/h of speed per hour, at the moment, the motor is used as a power source, the engine is started and keeps a low rotating speed, a transmission system is not connected, the storage battery is charged, and the power system has a large torque;
gear 2: kElectric power、K2The first transition gear is used for the processes of speeding up and speed per hour of 60-90/h during the running on an expressway or suburb, the motor is a power source at the moment, the engine is increased along with the increase of the rotating speed of the motor and is in a state of being switched into the power source at any time, and the power system has higher rotating speed;
(if a motor with a smaller rated power (rated speed) is used in the design, the transition first gear can be replaced by the transition second gear)
Gear 3: kHair-like device、K2The power source is switched to the engine by the motor, the engine is kept as the power source within a certain range of the rotating speed of the wheels, the motor does not run and is not connected to a transmission system, and the power system has the highest rotating speed;
gear 4: kHair-like device、K1The clutch is in a transition second gear during the engagement, and is used for turning or increasing resistance, reducing the vehicle speed and keeping the speed at 60-80/h during high-speed running, at the moment, the engine is a power source, and a power system has larger torque and higher rotating speed;
gear 5: kHair-like device、KElectric power、K1Meanwhile, the clutch is in a climbing gear when in joint, and at the moment, the engine and the motor are both power sources, so that the system has the maximum torque;
gear 6: kFalling down、K1When the reverse gear is engaged, the motor is a power source, the engine is started but is not connected to a transmission system, the storage battery is charged, and the reverse gear can be realized.
The engagement of the brake and the clutch can be realized by the ECU, the invention is not designed, in addition, the transmission ratio can be quantitatively designed by the personnel in the field according to the actual design requirement, and the invention is not described.

Claims (10)

1. The variable-speed coupling device of the oil-electricity hybrid power system is characterized by comprising a coupling box body (1), wherein an inner shaft (2) is installed in the coupling box body (1), one end of the inner shaft (2) is an input end, the other end of the inner shaft is an output end, the inner shaft (2) is sequentially sleeved with a first sun gear outer shaft (3) and a second sun gear outer shaft (4) from the input end to the output end, a first sun gear (7), a second sun gear (8), a third sun gear (9), a first planet carrier (10), a fourth sun gear (11), a fifth sun gear (12), a second planet carrier (13) and a reverse gear ring gear (14) are sequentially sleeved on the first sun gear outer shaft (3) from the input end to the output end of the inner shaft, and a sixth sun gear (15), a third planet carrier (16) and a reverse gear ring gear (14) are sequentially sleeved on the second sun gear outer shaft (4) from the input end to the output end of the inner shaft, A seventh sun gear (17) and an output gear (5); the seventh sun gear (17) and the output gear (5) rotate coaxially;
the first planet carrier (10) is connected with the second planet carrier (13) through a coupling (18);
a first planet wheel (19), a second planet wheel (20) and a third planet wheel (21) are arranged on the first planet carrier (10); a fourth planet wheel (22) is arranged on the second planet carrier (13);
the inner ring of the first planet wheel (19) is meshed with the outer ring of the third sun wheel (9), and the inner ring of the second planet wheel (20) is meshed with the outer ring of the fourth sun wheel (11); the inner ring of the third planet wheel (21) is meshed with the outer ring of the reverse gear ring (14), the inner ring of the reverse gear ring (14) is meshed with the outer ring of the fourth planet wheel (22), and the inner ring of the fourth planet wheel (22) is meshed with the outer ring of the fifth sun wheel (12);
a fifth planet wheel (23) and a sixth planet wheel (24) are arranged on the third planet carrier (16), the inner ring of the fifth planet wheel (23) is meshed with the outer ring of the sixth sun wheel (15), and the inner ring of the sixth planet wheel (24) is meshed with the outer ring of the seventh sun wheel (17);
the outer rings of the first planet wheel (19), the second planet wheel (20), the third planet wheel (21), the fifth planet wheel (23) and the sixth planet wheel (24) are respectively meshed with a gear ring, each gear ring is respectively connected with a brake (25), and the brakes (25) are fixed on the inner wall of the coupling box body (1).
2. A variable-speed coupling of a hybrid-electric powertrain according to claim 1, characterized in that the coupling (18) is a clutch coupling, and the first planet carrier (10) and the second planet carrier (13) are connected by three couplings in a circumferential array.
3. The variable speed coupling device of a hybrid electric system according to claim 1, wherein the planet wheels on a uniform circumference of each planet carrier are in a multi-wheel array.
4. The variable-speed coupling device of the hybrid power system is characterized in that a shaft shoulder is arranged on the inner shaft (2) and positioned between the first sun gear outer shaft (3) and the second sun gear outer shaft (4), a bearing is arranged between the first sun gear outer shaft (3) and the shaft shoulder on the inner shaft (2), and the end part of the first sun gear outer shaft (3) is limited by the bearing; a bearing is arranged between the second sun gear outer shaft (4) and a shaft shoulder on the inner shaft (2).
5. The variable speed coupling device of a hybrid oil-electric power system according to claim 1, wherein a sleeve is provided between two adjacent sun gears or between a sun gear and a planet carrier.
6. A variable speed coupling device of a hybrid system according to claim 1, wherein the output shaft of the motor is connected with a motor output gear (45), the outer ring of the engine output gear (40) is meshed with the outer ring of the first sun gear (7), the output shaft of the engine is connected with an engine output gear (41), the output shaft of the generator is connected with a generator gear (42), the engine output gear (41) is meshed with the generator gear (42), the output shaft of the engine is provided with a flywheel (43), the flywheel (43) is meshed with the motor output gear (40) through a first clutch (44), and the outer ring of the flywheel (43) is meshed with the outer ring of the second sun gear (8).
7. A variable speed coupling of a gasoline-electric hybrid powertrain according to claim 6, characterized in that the first clutch (44) is an overrunning clutch.
8. A variable speed coupling of a hybrid system according to claim 1, characterized in that the brake (25) is a multi-disc brake.
9. The variable-speed coupling device of the oil-electricity hybrid power system according to claim 1, characterized in that an inner friction plate (74) is arranged on an outer ring of a gear ring, a brake (25) comprises a front friction pressure plate (48) and a rear friction pressure plate (49), the front friction pressure plate (48) and the rear friction pressure plate (49) are sleeved on a guide shaft (50), a plurality of outer friction plates (51) are arranged between the front friction pressure plate (48) and the rear friction pressure plate (49), the inner friction plates (47) and the outer friction plates (51) are arranged in a staggered manner, each inner friction plate (47) is positioned between two outer friction plates (51), the outer friction plates (51) are sleeved on the guide shaft (50), and a return spring (52) is arranged between two adjacent outer friction plates (51); wherein the rear friction pressure plate (49) or the front friction pressure plate (48) is connected with the pressure device.
10. A variable speed coupling of a petrol electric hybrid according to claim 6, characterized in that the output shaft of the generator is provided with a second clutch (46).
CN202111661171.5A 2021-12-30 2021-12-30 Variable speed coupling device of oil-electricity hybrid power system Active CN114179604B (en)

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CN106342041B (en) * 2012-06-29 2014-07-30 中国北方车辆研究所 A kind of electromechanical compound gearing for series parallel hybrid power endless-track vehicle
CN105774520A (en) * 2016-03-03 2016-07-20 科力远混合动力技术有限公司 Transmission device for rear-wheel-drive plug-in type hybrid power vehicle
CN106926682A (en) * 2017-02-14 2017-07-07 北京理工大学 Endless-track vehicle connection in series-parallel hybrid transmissions
CN107215199A (en) * 2017-05-02 2017-09-29 北京理工大学 The mode mixture actuating unit of heavy goods vehicles four
CN217598334U (en) * 2021-12-30 2022-10-18 黄立然 Variable speed coupling device of oil-electricity hybrid power system

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007203787A (en) * 2006-01-31 2007-08-16 Toyota Motor Corp Driving device for vehicle
US7645206B2 (en) * 2007-02-26 2010-01-12 Gm Global Technology Operations, Inc. Three mode electrically-variable transmission
CN106342041B (en) * 2012-06-29 2014-07-30 中国北方车辆研究所 A kind of electromechanical compound gearing for series parallel hybrid power endless-track vehicle
CN105774520A (en) * 2016-03-03 2016-07-20 科力远混合动力技术有限公司 Transmission device for rear-wheel-drive plug-in type hybrid power vehicle
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CN217598334U (en) * 2021-12-30 2022-10-18 黄立然 Variable speed coupling device of oil-electricity hybrid power system

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