CN113635756A - Hybrid power transmission and vehicle - Google Patents

Hybrid power transmission and vehicle Download PDF

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Publication number
CN113635756A
CN113635756A CN202110786647.1A CN202110786647A CN113635756A CN 113635756 A CN113635756 A CN 113635756A CN 202110786647 A CN202110786647 A CN 202110786647A CN 113635756 A CN113635756 A CN 113635756A
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CN
China
Prior art keywords
gear
driven gear
driven
input shaft
driving
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Pending
Application number
CN202110786647.1A
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Chinese (zh)
Inventor
王德伟
闵立
张志明
李娟�
吴伟
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Dongfeng Motor Group Co Ltd
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Dongfeng Motor Group Co Ltd
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Application filed by Dongfeng Motor Group Co Ltd filed Critical Dongfeng Motor Group Co Ltd
Priority to CN202110786647.1A priority Critical patent/CN113635756A/en
Publication of CN113635756A publication Critical patent/CN113635756A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—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
    • B60K6/40—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 assembly or relative disposition of components

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Structure Of Transmissions (AREA)

Abstract

The invention discloses a hybrid power transmission and a vehicle, and belongs to the technical field of vehicles. The hybrid transmission includes: the second-gear driving gear and the fourth-gear driving gear are both arranged on the first input shaft; the third-gear driving gear and the fifth-gear driving gear are both arranged on the second input shaft; the second-gear driving gear is meshed with the second-gear driven gear, the third-gear driving gear is meshed with the third-gear driven gear, the fourth-gear driving gear is meshed with the fourth-gear driven gear, and the fifth-gear driving gear is meshed with the fifth-gear driven gear; the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear can be combined with the output shaft; the third-gear driven gear can be combined with the fourth-gear driven gear; the motor assembly is connected with the second input shaft. The hybrid power transmission and the vehicle reduce the number of gears, six gears are generated by combining four pairs of gears, the structure is simple and compact, the cost is low, the axial size of the transmission is reduced, the transmission efficiency is high, and the generalization rate of the hybrid power transmission and the vehicle with the traditional transmission part is high.

Description

Hybrid power transmission and vehicle
Technical Field
The invention relates to the technical field of vehicles, in particular to a hybrid transmission and a vehicle.
Background
With the tightening of fuel consumption regulations, various automobile manufacturers develop new energy automobile types. New energy gear boxes need to be developed for new energy vehicle types. At present, most of new energy gearboxes are special hybrid gearboxes which are newly developed, the development period is long, and the cost is high.
In the prior art, a hybrid transmission adopts a double-motor and double-planetary gear mechanism, transmission under four speed ratios of a transmission system is realized under the action of a clutch, only four gears under direct drive of an engine can be driven, and the hybrid transmission adopts the planetary gear mechanism, so that a transmission chain is long, the structure is complex, the cost is high, the size of the transmission is large, and the transmission efficiency is low.
Disclosure of Invention
The invention provides a hybrid transmission and a vehicle, which solve or partially solve the technical problems of complex structure, high cost, large size of the transmission and low transmission efficiency of the hybrid transmission in the prior art.
To solve the above technical problem, the present invention provides a hybrid transmission including: the driving device comprises a first input shaft, a second input shaft, an output shaft, a motor assembly, a second-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear, a second-gear driven gear, a third-gear driven gear, a fourth-gear driven gear and a fifth-gear driven gear; the second-gear driving gear and the fourth-gear driving gear are both arranged on the first input shaft; the third-gear driving gear and the fifth-gear driving gear are both arranged on the second input shaft; the second-gear driving gear is meshed with the second-gear driven gear, the third-gear driving gear is meshed with the third-gear driven gear, the fourth-gear driving gear is meshed with the fourth-gear driven gear, and the fifth-gear driving gear is meshed with the fifth-gear driven gear; the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear can be combined with the output shaft; the third-gear driven gear can be combined with the fourth-gear driven gear; the motor assembly is connected with the second input shaft.
Further, a first synchronizer is arranged on the output shaft and is arranged between the second-gear driven gear and the fourth-gear driven gear; the second-speed driven gear and the fourth-speed driven gear may be coupled with the output shaft through the first synchronizer.
Further, a second synchronizer is arranged on the output shaft and is arranged between the third-gear driven gear and the fifth-gear driven gear; the third-speed driven gear and the fifth-speed driven gear may be coupled with the output shaft through the second synchronizer.
Further, a bridge synchronizer is arranged on the output shaft and is arranged between the third-gear driven gear and the fourth-gear driven gear; the third driven gear may be coupled with the fourth driven gear through the bridge synchronizer.
Further, the motor assembly includes: a motor and a reducer; the first end of the speed reducer is connected with the motor, and the second end of the speed reducer is connected with the second input shaft.
Further, the second input shaft is disposed within the first input shaft, the second input shaft being coaxial with the first input shaft.
Further, the hybrid transmission further includes: a clutch device; the clutch device includes: a first clutch and a second clutch; the first clutch is connected with the first input shaft; the second clutch is connected with the second input shaft.
Further, the hybrid transmission further includes: a differential mechanism; the differential is connected with the output shaft.
Further, the hybrid transmission further includes: a box body; the first input shaft, the second input shaft, the output shaft, the motor assembly, the second-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear, the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear are all arranged in the box body.
Based on the same inventive concept, the application also provides a vehicle comprising the hybrid transmission.
One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:
because the second-gear driving gear and the fourth-gear driving gear are both arranged on the first input shaft, the third-gear driving gear and the fifth-gear driving gear are both arranged on the second input shaft, the second-gear driving gear is meshed with the second-gear driven gear, the third-gear driving gear is meshed with the third-gear driven gear, the fourth-gear driving gear is meshed with the fourth-gear driven gear, the fifth-gear driving gear is meshed with the fifth-gear driven gear, the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear can be combined with the output shaft, and the third-gear driven gear can be combined with the fourth-gear driven gear, when the vehicle runs in the first gear, the second input shaft transmits power to the third-gear driving gear, the third-gear driving gear drives the third-gear driven gear to act, the third-gear driven gear is combined with the fourth-gear driven gear, the fourth-gear driving gear drives the fourth-gear to act, when the vehicle runs in the third gear, the second input shaft transmits power to the third gear driving gear, the third gear driving gear drives the third gear driven gear to act, the third gear driven gear is combined with the output shaft to transmit power to the output shaft to realize the third gear running of the vehicle, when the vehicle runs in the fourth gear, the first input shaft transmits power to the fourth gear driving gear, the fourth gear driving gear drives the fourth gear driven gear to act, when the vehicle runs in the sixth gear, the first input shaft transmits power to the fourth-gear driving gear, the fourth-gear driving gear drives the fourth-gear driven gear to act, the fourth-gear driven gear is combined with the third-gear driven gear to transmit power to the third-gear driven gear, the third-gear driven gear drives the third-gear driving gear to act, the third-gear driving gear transmits power to the fifth-gear driving gear through the second input shaft, the fifth-gear driving gear transmits power to the fifth-gear driven gear, and the fifth-gear driven gear is combined with the output shaft, the transmission has the advantages that power is transmitted to the output shaft, six-gear running of the vehicle is achieved, the number of gears is reduced, six gears are generated by combining four pairs of gears, the structure is simple and compact, the cost is low, the axial size of the gearbox is reduced, the transmission efficiency is high, the generalization rate of the transmission part and the traditional gearbox is high, the torque compensation of the motor assembly is utilized to fill the engine torque falling pit, the continuous stability of the acceleration of the whole vehicle is guaranteed, and the gear shifting comfort is improved.
Drawings
FIG. 1 is a schematic illustration of a hybrid transmission according to an embodiment of the present invention;
FIG. 2 is a first gear power transfer diagram of the hybrid transmission of FIG. 1;
FIG. 3 is a six speed power transmission diagram of the hybrid transmission of FIG. 1;
FIG. 4 is a schematic illustration of a park fixed ratio charging of the hybrid transmission of FIG. 1;
FIG. 5 is a schematic illustration of a park boost charging of the hybrid transmission of FIG. 1;
FIG. 6 is a schematic illustration of a fourth gear acceleration assist of the hybrid transmission of FIG. 1;
FIG. 7 is a schematic illustration of energy recovery for the fourth gear of the hybrid transmission of FIG. 1;
FIG. 8 is a schematic illustration of torque compensation for the up-shift motor of the hybrid transmission of FIG. 1.
Detailed Description
Referring to fig. 1 to 3, a hybrid transmission provided by an embodiment of the present invention includes: the driving device comprises a first input shaft 1, a second input shaft 2, an output shaft 3, a motor assembly 4, a second-gear driving gear 5, a third-gear driving gear 6, a fourth-gear driving gear 7, a fifth-gear driving gear 8, a second-gear driven gear 9, a third-gear driven gear 10, a fourth-gear driven gear 11 and a fifth-gear driven gear 12.
The second gear driving gear 5 and the fourth gear driving gear 7 are both disposed on the first input shaft 1.
The third gear driving gear 6 and the fifth gear driving gear 8 are both arranged on the second input shaft 2.
The second-gear driving gear 5 is meshed with the second-gear driven gear 9, the third-gear driving gear 6 is meshed with the third-gear driven gear 10, the fourth-gear driving gear 7 is meshed with the fourth-gear driven gear 11, and the fifth-gear driving gear 8 is meshed with the fifth-gear driven gear 12.
The second-speed driven gear 9, the third-speed driven gear 10, the fourth-speed driven gear 11 and the fifth-speed driven gear 12 are coupled to the output shaft 3.
The third driven gear 10 may be combined with the fourth driven gear 11.
The motor assembly 4 is connected with the second input shaft 2.
In the embodiment of the present application, since the second driving gear 5 and the fourth driving gear 7 are both disposed on the first input shaft 1, the third driving gear 6 and the fifth driving gear 8 are both disposed on the second input shaft 2, the second driving gear 5 is engaged with the second driven gear 9, the third driving gear 6 is engaged with the third driven gear 10, the fourth driving gear 7 is engaged with the fourth driven gear 11, the fifth driving gear 8 is engaged with the fifth driven gear 12, the second driven gear 9, the third driven gear 10, the fourth driven gear 11 and the fifth driven gear 12 can be combined with the output shaft 3, the third driven gear 10 can be combined with the fourth driven gear 11, when the vehicle runs in the first gear, the second input shaft 2 transmits power to the third driving gear 6, the third driving gear 6 drives the third driven gear 10 to move, the third driven gear 10 is combined with the fourth driven gear 11, the power is transmitted to a fourth-gear driven gear 11 from a third-gear driven gear 10, the fourth-gear driven gear 11 drives a fourth-gear driving gear 7 to move, the fourth-gear driving gear 7 transmits the power to a second-gear driving gear 5 through a first input shaft 1, the second-gear driving gear 5 transmits the power to a second-gear driven gear 9, the second-gear driven gear 9 is combined with an output shaft 3 to transmit the power to the output shaft 3, so that the first-gear running of the vehicle is realized, when the second-gear running of the vehicle is realized, the first input shaft 1 transmits the power to the second-gear driving gear 5, the second-gear driving gear 5 drives the second-gear driven gear 9 to move, the second-gear driven gear 9 is combined with the output shaft 3 to transmit the power to the output shaft 3, so that the second-gear running of the vehicle is realized, when the third-gear running of the vehicle is realized, the second input shaft 2 transmits the power to the third-gear driving gear 6, and the third-gear driving gear 6 drives the third-gear driven gear 10 to move, the third-gear driven gear 10 is combined with the output shaft 3 to transmit power to the output shaft 3, so that the vehicle can run in three gears, when the vehicle runs in four gears, the first input shaft 1 transmits power to the fourth-gear driving gear 7, the fourth-gear driving gear 7 drives the fourth-gear driven gear 11 to act, the fourth-gear driven gear 11 is combined with the output shaft 3 to transmit power to the output shaft 3, so that the vehicle can run in four gears, when the vehicle runs in five gears, the second input shaft 2 transmits power to the fifth-gear driving gear 8, the fifth-gear driving gear 8 drives the fifth-gear driven gear 12 to act, the fifth-gear driven gear 12 is combined with the output shaft 3 to transmit power to the output shaft 3, so that the vehicle can run in five gears, when the vehicle runs in six gears, the first input shaft 1 transmits power to the fourth-gear driving gear 7, the fourth-gear driving gear 7 drives the fourth-gear driven gear 11 to act, and the fourth-gear driven gear 11 is combined with the third-gear driven gear 10, the power is transmitted to the third-gear driven gear 10 from the fourth-gear driven gear 11, the third-gear driven gear 10 drives the third-gear driving gear 6 to act, the third-gear driving gear 6 transmits the power to the fifth-gear driving gear 8 through the second input shaft 2, the fifth-gear driving gear 8 transmits the power to the fifth-gear driven gear 12, the fifth-gear driven gear 12 is combined with the output shaft 3, the power is transmitted to the output shaft 3, six-gear running of a vehicle is achieved, the number of gears is reduced, six gears are generated by combining four pairs of gears, the structure is simple and compact, the cost is low, the axial size of the gearbox is reduced, the transmission efficiency is high, the generalization rate with traditional gearbox parts is high, due to the fact that the motor assembly is connected with the second input shaft, torque compensation of the motor assembly can be used for filling engine torque falling pits, continuous and stable acceleration of the whole vehicle is guaranteed, and gear shifting comfort is improved.
Referring to fig. 8, in the prior art, an engine is driven, in the gear shifting process, a gear is raised, the speed ratio of a gearbox is reduced, the rotating speed of the engine is reduced, a torque reduction request needs to be sent to the engine in the gear shifting process according to the gear shifting strategy of a double clutch, the rotating speed of the engine is reduced to a target rotating speed, the torque of the engine is unchanged, the speed ratio of the gear is reduced, the driving torque of the whole vehicle is reduced, the acceleration of the whole vehicle is discontinuous, and the driving comfort is affected, the driving torque of wheels caused by the fact that the rotating speed of the engine drops and the speed ratio is reduced in the gear shifting process of the double clutch gearbox is reduced, and in the dual clutch gearbox, the motor torque compensation can be used for filling the torque of the engine, the acceleration of the whole vehicle is ensured to be continuous and stable, and the gear shifting comfort is improved.
Specifically, the output shaft 3 is provided with a first synchronizer 13, and the first synchronizer 13 is provided between the second-speed driven gear 9 and the fourth-speed driven gear 11.
The second-speed driven gear 9 and the fourth-speed driven gear 11 can be coupled to the output shaft 3 through a first synchronizer 13.
In the present embodiment, when the vehicle is running in the second gear, the second-gear driven gear 9 is coupled to the output shaft 3 via the first synchronizer 13. When the vehicle is running in the fourth gear, the fourth-gear driven gear 11 is coupled to the output shaft 3 through the first synchronizer 13.
Specifically, the output shaft 3 is provided with a second synchronizer 14, and the second synchronizer 14 is provided between the third-speed driven gear 10 and the fifth-speed driven gear 12.
The third and fifth driven gears 10 and 12 may be coupled with the output shaft 3 through a second synchronizer 14.
In the present embodiment, when the vehicle is running in third gear, the third driven gear 10 is coupled to the output shaft 3 via the second synchronizer 14. When the vehicle is running in fifth gear, the fifth-gear driven gear 12 is coupled with the output shaft 3 through the second synchronizer 14.
Specifically, a bridge synchronizer 15 is provided on the output shaft 3, and the bridge synchronizer 15 is provided between the third-speed driven gear 10 and the fourth-speed driven gear 11.
The third driven gear 10 may be coupled with the fourth driven gear 11 through a bridge synchronizer 15.
In the present embodiment, when the vehicle is running in the first gear, the third driven gear 10 is coupled to the fourth driven gear 11 via the bridge synchronizer 15, and at this time, the second driven gear 9 is coupled to the output shaft 3. When the vehicle is running in the sixth gear, the fourth-gear driven gear 11 is coupled to the third-gear driven gear 10 via the bridge synchronizer 15, and at this time, the fifth-gear driven gear 12 is coupled to the output shaft 3.
Specifically, the motor assembly 4 includes: a motor 4-1 and a speed reducer 4-2.
The first end of the speed reducer 4-2 is connected with the motor 4-1, and the second end of the speed reducer 4-2 is connected with the second input shaft 2.
The power of the motor 4-1 can be transmitted to the second input shaft 2 through the speed reducer 4-2, the engine torque falling pit can be filled by utilizing the motor torque compensation, the continuous stability of the acceleration of the whole vehicle is ensured, and the gear shifting comfort is improved.
When the vehicle needs to be backed, the motor 4-1 rotates reversely to transmit power to the second input shaft 2, the second input shaft 2 transmits the power to the second-gear driven gear 9 through the second-gear driving gear 5, the second-gear driven gear 9 is combined with the output shaft 3 to transmit the power to the output shaft 3, and the vehicle can be backed.
Specifically, the hybrid transmission further includes: a clutch device 16.
The clutch device 16 includes: a first clutch 16-1 and a second clutch 16-2.
The first clutch 16-1 is connected to the first input shaft 1.
The second clutch 16-2 is connected with the second input shaft 2, the second input shaft 2 is arranged in the first input shaft 1, the second input shaft 2 is coaxial with the first input shaft 1, and the second clutch 16-2 controls a first gear, a third gear and a fifth gear; the first clutch 16-1 controls second, fourth, and sixth gears, implementing a dual clutch configuration.
The motor assembly 4 is connected with the second input shaft 2, namely the motor assembly 4 and the double clutch structure are combined to generate a P2.5 hybrid structure, so that direct drive, starting, energy recovery, pure electric starting, parking power generation, pure electric running and parallel running of the engine can be realized. The double-clutch structure and the P2.5 hybrid structure can realize parallel acceleration power assistance and improve the dynamic property; the hybrid mode can realize pure electric starting and braking energy recovery, and improve fuel economy; in the double clutch gear shifting process, the motor can perform torque compensation, and driving comfort and power responsiveness are improved.
The dual clutch structure, in cooperation with the configuration of P2.5, can realize 7 hybrid modes, see table 1. The 7 mixing modes can enrich the selection of the control strategy of the whole vehicle. An optimal control strategy can be found through a whole vehicle energy management strategy so as to reduce the vehicle oil consumption and improve the vehicle fuel economy; besides optimizing fuel economy, the power-assisted mode of the 7 hybrid modes can improve the power performance of the whole vehicle; the motor torque filling function in the gear-up process can ensure the acceleration to be continuous, and the driving comfort is improved.
Figure BDA0003159163750000081
Figure BDA0003159163750000091
Table 1: hybrid power function realization way
Referring to fig. 4, when the parking fixed-speed ratio charging is performed, the second clutch 16-2 transmits power to the second input shaft 2, and the second input shaft 2 transmits power to the motor 4-1 through the reducer 4-2 of the motor assembly 4, so as to charge the motor 4-1. Referring to fig. 5, when the parking acceleration charging is performed, the first clutch 16-1 transmits power to the first input shaft 1, the first input shaft 1 drives the fourth-gear driving gear 7 to move, the fourth-gear driving gear 7 transmits power to the fourth-gear driven gear 11, the fourth-gear driven gear 11 is combined with the third-gear driven gear 10, the power is transmitted to the third-gear driving gear 6 through the third-gear driven gear 10, the third-gear driving gear 6 reaches the second input shaft 2 to move, the second input shaft 2 transmits power to the motor 4-1 through the reducer 4-2 of the motor assembly 4, and the motor 4-1 is charged.
Accelerating assistance and braking energy recovery working principle: in order to realize the power-interruption-free gear shifting of the double-clutch transmission, a gear pre-selection strategy is developed on a control strategy, for example, the second clutch 16-2 transmits torque, the third gear is a driving gear, and the double-clutch gear shifting control strategy can pre-select the second gear or the fourth gear. The pre-selection control strategy of the double clutch transmission can simultaneously engage 2 gears (1 odd gear and 1 even gear), and all the gears share one output shaft 3. When the output shaft 3 rotates, the first input shaft 1 and the second input shaft 2 rotate together. The first input shaft 1 and the second input shaft 2 rotate regardless of whether the odd-numbered gear is in the gear or the even-numbered gear is the current driving gear. The motor 4-1 of the motor assembly 4 is connected with the second input shaft 2 (odd gears) through the speed reducer 4-2, and can provide assistance or brake energy recovery at any time. The motor accelerating power assisting and braking energy recycling do not need to shift gears, and the motor accelerating power assisting and braking energy recycling device is good in executive performance and recycling effect.
For example, the vehicle is running in 4 gear, i.e. 4 gear is running in gear, and 3 gear working condition is pre-engaged. Referring to fig. 6, the fourth gear acceleration assist, namely: a motor 4-1 of a motor assembly 4 transmits power to a second input shaft 2 through a speed reducer 4-2, the second input shaft 2 drives a third-gear driven gear 10 through a third-gear driving gear 6, the third-gear driven gear 10 is combined with an output shaft 3 to transmit the power to the output shaft 3, meanwhile, a first clutch 16-1 transmits the power to a first input shaft 1, the first input shaft 1 transmits the power to a fourth-gear driven gear 11 through a fourth-gear driving gear 7, and the fourth-gear driven gear 11 is combined with the output shaft 3 to transmit the power to the output shaft 3. Referring to fig. 7, the fourth gear energy recovery, namely: the energy of the wheel end is transmitted to the output shaft 3, the output shaft 3 is combined with the third-gear driven gear 10, the third-gear driven gear 10 transmits power to the third-gear driving gear 6, the third-gear driving gear 6 drives the second input shaft 2 to act, and the second input shaft 2 transmits the power to the motor 4-1 through the reducer 4-2 of the motor assembly 4, so that the energy recovery is realized.
Specifically, the hybrid transmission further includes: a differential 17.
The differential 17 is connected with the output shaft 3 and is used for receiving power transmitted by the output shaft 3.
Specifically, the hybrid transmission further includes: and (4) a box body.
The first input shaft 1, the second input shaft 2, the output shaft 3, the motor assembly 4, the second-gear driving gear 5, the third-gear driving gear 6, the fourth-gear driving gear 7, the fifth-gear driving gear 8, the second-gear driven gear 9, the third-gear driven gear 10, the fourth-gear driven gear 11 and the fifth-gear driven gear 12 are all arranged in the box body, and the first input shaft 1, the second input shaft 2, the output shaft 3, the motor assembly 4, the second-gear driving gear 5, the third-gear driving gear 6, the fourth-gear driving gear 7, the fifth-gear driving gear 8, the second-gear driven gear 9, the third-gear driven gear 10, the fourth-gear driven gear 11 and the fifth-gear driven gear 12 are accommodated in the box body, so that safety is guaranteed.
Based on the same inventive concept, the present application further provides a vehicle, where the vehicle employs the hybrid transmission, and the specific structure of the hybrid transmission refers to the above embodiments, and since the hybrid transmission employs all technical solutions of all the above embodiments, at least all beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

Claims (10)

1. A hybrid transmission, comprising: the driving device comprises a first input shaft, a second input shaft, an output shaft, a motor assembly, a second-gear driving gear, a third-gear driving gear, a fourth-gear driving gear, a fifth-gear driving gear, a second-gear driven gear, a third-gear driven gear, a fourth-gear driven gear and a fifth-gear driven gear;
the second-gear driving gear and the fourth-gear driving gear are both arranged on the first input shaft;
the third-gear driving gear and the fifth-gear driving gear are both arranged on the second input shaft;
the second-gear driving gear is meshed with the second-gear driven gear, the third-gear driving gear is meshed with the third-gear driven gear, the fourth-gear driving gear is meshed with the fourth-gear driven gear, and the fifth-gear driving gear is meshed with the fifth-gear driven gear;
the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear can be combined with the output shaft;
the third-gear driven gear can be combined with the fourth-gear driven gear;
the motor assembly is connected with the second input shaft.
2. The hybrid transmission of claim 1, wherein:
the output shaft is provided with a first synchronizer which is arranged between the second-gear driven gear and the fourth-gear driven gear;
the second-speed driven gear and the fourth-speed driven gear may be coupled with the output shaft through the first synchronizer.
3. The hybrid transmission of claim 1, wherein:
a second synchronizer is arranged on the output shaft and is arranged between the third-gear driven gear and the fifth-gear driven gear;
the third-speed driven gear and the fifth-speed driven gear may be coupled with the output shaft through the second synchronizer.
4. The hybrid transmission of claim 1, wherein:
a bridge synchronizer is arranged on the output shaft and is arranged between the third-gear driven gear and the fourth-gear driven gear;
the third driven gear may be coupled with the fourth driven gear through the bridge synchronizer.
5. The hybrid transmission of claim 1, wherein the electric machine assembly comprises: a motor and a reducer;
the first end of the speed reducer is connected with the motor, and the second end of the speed reducer is connected with the second input shaft.
6. The hybrid transmission of claim 1, wherein:
the second input shaft is disposed within the first input shaft, the second input shaft being coaxial with the first input shaft.
7. The hybrid transmission of claim 1, further comprising: a clutch device;
the clutch device includes: a first clutch and a second clutch;
the first clutch is connected with the first input shaft;
the second clutch is connected with the second input shaft.
8. The hybrid transmission of claim 1, further comprising: a differential mechanism;
the differential is connected with the output shaft.
9. The hybrid transmission of claim 1, further comprising: a box body;
the first input shaft, the second input shaft, the output shaft, the motor assembly, the second-gear driving gear, the third-gear driving gear, the fourth-gear driving gear, the fifth-gear driving gear, the second-gear driven gear, the third-gear driven gear, the fourth-gear driven gear and the fifth-gear driven gear are all arranged in the box body.
10. A vehicle characterized by comprising the hybrid transmission of any one of claims 1-9.
CN202110786647.1A 2021-07-12 2021-07-12 Hybrid power transmission and vehicle Pending CN113635756A (en)

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