CN113352869A - Hybrid power transmission system - Google Patents

Hybrid power transmission system Download PDF

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Publication number
CN113352869A
CN113352869A CN202110851138.2A CN202110851138A CN113352869A CN 113352869 A CN113352869 A CN 113352869A CN 202110851138 A CN202110851138 A CN 202110851138A CN 113352869 A CN113352869 A CN 113352869A
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CN
China
Prior art keywords
output shaft
output
gear
gear train
planetary gear
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Pending
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CN202110851138.2A
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Chinese (zh)
Inventor
陈振坡
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Shanghai Aiqian Enterprise Management Consulting Partnership LP
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Shanghai Aiqian Enterprise Management Consulting Partnership LP
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Priority to CN202110851138.2A priority Critical patent/CN113352869A/en
Publication of CN113352869A publication Critical patent/CN113352869A/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
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—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
    • B60K2006/266—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 with two coaxial motors or generators

Abstract

The invention provides a hybrid power transmission system, which comprises an internal combustion engine, a generator component, a first planetary gear train, a driving motor component and a system output shaft, wherein the internal combustion engine, the generator component, the first planetary gear train, the driving motor component and the system output shaft are coaxially arranged in sequence; the generator component is in meshed connection with the first planetary gear train; a disconnecting and connecting device is arranged on the first planetary gear train, the disconnecting and connecting device is connected with a system output shaft through a first gear train output shaft on the disconnecting and connecting device, and the system output shaft is connected with a vehicle transmission system through an output flange; the driving motor component is connected with the output shaft of the system through the output intermediate shaft of the driving motor. Based on the functional requirements of the hybrid power system, the longitudinal rear-drive coaxial electric drive transmission is formed by configuring the generator assembly, the driving motor assembly, the first planetary gear train and the like and the electric control assembly, all functions required by the hybrid power automobile are realized, the application of platforms of different automobile types is met based on the application of different motors, and the production and application costs are reduced based on the gear structure arrangement and connection.

Description

Hybrid power transmission system
Technical Field
The invention relates to the technical field of vehicle power transmission, in particular to a hybrid power transmission system.
Background
With the increasing strictness of oil consumption regulations and the improvement of the acceptance of new energy products in the market, electrification of a traditional power assembly becomes a necessary choice for a plurality of host computer plants, and electrification of a transmission system of a medium-large vehicle also becomes a first problem to be considered in each large host computer plant. The oil-electricity hybrid power system mainly comprises a single motor and a double motor.
The parallel single-motor hybrid power gearbox is improved based on a traditional gearbox, the system is additionally provided with a motor and a clutch device for electric coupling, and the four-quadrant adjusting technology of the motor is adopted to realize the functions of driving, generating and backing up, so that the electrified purpose is achieved, meanwhile, the internal combustion engine system is designed to be refined, and the purpose of economy is achieved on the basis of ensuring the dynamic property.
The dual-motor hybrid technology does not depend on a traditional gearbox, and realizes the cooperative work of an engine, a generator and a driving motor by performing power distribution through a coupling system, so that the fuel economy and the power performance are improved.
However, in the existing dual-motor hybrid power system, the system structure is complex, a multi-gear clutch and a hydraulic control system need to be integrated, the robustness of the whole system is poor, and the actual production and application cost is high.
Disclosure of Invention
In order to solve the problems, the invention adopts the following technical scheme:
the hybrid power transmission system comprises an internal combustion engine, a generator component, a first planetary gear train, a driving motor component and a system output shaft which are coaxially arranged in sequence;
the internal combustion engine is connected with the first planetary gear train through a torsional damper;
the generator assembly is in meshed connection with the first planetary gear train;
a disconnecting and connecting device is arranged on the first planetary gear train and is connected with the system output shaft through a first gear train output shaft on the disconnecting and connecting device, and the system output shaft is connected with a vehicle transmission system through an output flange;
the driving motor assembly is connected with the system output shaft through a driving motor output intermediate shaft;
the generator assembly and the driving motor assembly are both controlled by the electric control assembly.
In some embodiments, the drive motor assembly includes a drive motor stator and a drive motor rotor to which a drive motor output gear is connected; a first driving output pinion and a driving output gearwheel are respectively arranged at two ends of the output intermediate shaft of the driving motor; the first gear train output shaft is also provided with a gear train output shaft gear; the driving motor rotor is in transmission connection with the driving output gear wheel through the driving motor output gear, the first driving output pinion is connected with the gear train output shaft gear, and power is transmitted to the system output shaft.
In some embodiments, the first internal combustion engine output intermediate shaft is provided with a first internal combustion engine output large gear and a first internal combustion engine output small gear at two ends; the output shaft of the first gear train is not directly connected with the output shaft of the system, and the output shaft of the system is also provided with a system output gearwheel; the gear train output shaft gear is meshed with the first internal combustion engine output large gear, and the system output large gear is meshed with the first internal combustion engine output small gear and the first driving output small gear at the same time.
In some embodiments, the engine further comprises a second internal combustion engine output intermediate shaft, and the two ends of the second internal combustion engine output intermediate shaft are provided with a second internal combustion engine output large gear and a second internal combustion engine output small gear; the output shaft of the first gear train is not directly connected with the output shaft of the system, and the output shaft of the system is also provided with a system output gearwheel and a system output pinion; the gear train output shaft gear is meshed with the second internal combustion engine output pinion, the second internal combustion engine output large gear is meshed with the system output pinion, and the system output large gear is meshed with the first driving output pinion.
In some embodiments, the output shaft of the first gear train is not directly connected with the output shaft of the system, and the output shaft of the system is also provided with a system output gearwheel; the middle part of the output intermediate shaft of the driving motor is also provided with a second driving output pinion; the gear train output shaft gear is meshed with the second drive output pinion, and the first drive output pinion is meshed with the system output gearwheel.
The other hybrid power transmission system is characterized by comprising an internal combustion engine, a generator component, a first planetary gear train, a driving motor component and a system output shaft which are coaxially arranged in sequence;
the internal combustion engine is connected with the first planetary gear train through a torsional damper;
the generator assembly is in meshed connection with the first planetary gear train;
a disconnecting and connecting device is arranged on the first planetary gear train and is connected with the system output shaft through a first gear train output shaft on the disconnecting and connecting device, and the system output shaft is connected with a vehicle transmission system through an output flange;
the driving motor component is connected with the system output shaft through a second planetary gear train;
the generator assembly and the driving motor assembly are both controlled by the electric control assembly.
In some embodiments, the drive motor assembly includes a drive motor stator and a drive motor rotor; the second planetary gear train comprises a second planetary gear ring, a second planetary gear and a second sun gear; the system output shaft is in transmission connection with a second planet wheel, the driving motor rotor is in meshing connection with the second planet wheel through the second sun wheel, and the second planet gear ring is connected and arranged on a shell of the transmission system.
In some embodiments, the generator assembly includes a generator stator and a generator rotor; the first planetary gear train also comprises a first planetary gear ring, a first planetary gear and a first sun gear; the generator rotor is connected with the first sun gear, the first planet gear is meshed with the outer gear teeth of the first sun gear, and the first planet gear ring is connected with the torsion damper assembly.
In some embodiments, an oil pump is further arranged between the generator assembly and the driving motor assembly, an oil pump driving gear is arranged at the tail end of an oil pump output shaft of the oil pump, and the oil pump driving gear is meshed with the outer ring of the first planetary gear ring to drive the disconnecting and connecting device to be opened and closed.
The invention has the beneficial effects that:
the invention is based on the functional requirements of a hybrid power system, the longitudinal rear-drive coaxial electric drive transmission is formed by configuring a generator component, a driving motor component, a first planetary gear train and the like and an electric control component, the application of the traditional gearbox is replaced by matching and connecting double motors, all functions required by the hybrid power automobile are realized, the application of platforms of different automobile types is met based on the application of different motors, and the production and application cost is reduced based on the arrangement and connection of gear structures.
Drawings
FIG. 1 is a system block diagram of one embodiment of the present invention;
FIG. 2 is a system block diagram of a first optimization design according to an embodiment of the present invention;
FIG. 3 is a system block diagram of a second exemplary design in accordance with an embodiment of the present invention;
FIG. 4 is a system block diagram of a third exemplary design in accordance with an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of another embodiment of the present invention;
in the figure:
1 internal combustion engine, 2 torsional damper assembly, 3 generator assembly, 3a generator stator, 3b generator rotor, 4 first planetary gear train, 4a disconnecting and connecting device, 4b first planetary gear ring, 4c first planet carrier, 4d first sun gear, 4e gear train output shaft gear, 4f first gear train output shaft, 5 electric control assembly, 6 driving motor assembly, 6a driving motor stator, 6b driving motor rotor, 7 driving motor output intermediate shaft, 7a first driving output pinion, 7b driving output gear wheel, 7c second driving output pinion, 8 system output shaft, 8a output flange, 8b system output gear wheel, 8c system output pinion, 9 first internal combustion engine output intermediate shaft, 9a first internal combustion engine output pinion, 9b first internal combustion engine output gear wheel, 10 driving motor output gear wheel, 11 oil pump output shaft, 11a oil pump, 11b oil pump driving gear, 12 second internal combustion engine output intermediate shaft, 12a second internal combustion engine output large gear, 12b second internal combustion engine output small gear, 13 second planetary gear train, 13a second planetary gear ring, 13b second planetary gear and 13c second sun gear.
Detailed Description
The technical scheme of the invention is explained in detail in the following with the accompanying drawings.
Example 1
The hybrid power transmission system shown in fig. 1 comprises an internal combustion engine 1, a generator assembly 3, a first planetary gear train 4, a driving motor assembly 6 and a system output shaft 8 which are coaxially arranged in sequence; the internal combustion engine 1 is connected with a first planetary gear train 4 through a torsional damper 2; the generator component 3 is meshed with the first planetary gear train 4; a disconnecting and connecting device 4a is arranged on the first planetary gear train 4, the disconnecting and connecting device 4a is connected with a system output shaft 8 through a first gear train output shaft 4f on the disconnecting and connecting device, and the system output shaft 8 is connected with a vehicle transmission system through an output flange 8 a; the driving motor assembly 6 is connected with a system output shaft 8 through a driving motor output intermediate shaft 7; the generator assembly 3 and the driving motor assembly 6 are both controlled by the electronic control assembly 5.
The generator component 3 and the driving motor component 6 are coaxially connected with a system output shaft 8 through a first planetary gear train 4, and the internal combustion engine 1 is coaxially configured through the connection of the torsion damper component 2 and the first planetary gear train 4, so that the integrated coaxial output of a transmission system is realized; the generator component 3 and the driving motor component 6 adopt a cylindrical rotating motor design, the radial size of the whole system is reduced, the performance of the system is improved, and different vehicle types can be adapted through different axial size configurations; the output end of the system is designed through a fixed speed ratio, so that the axial length design can be effectively simplified, the robustness of the system is improved, and the cost is reduced; the internal combustion engine 1 and the generator component 3 are connected through the first planetary gear train 4, the efficiency matching of the internal combustion engine 1 and the generator component 3 is adjusted through the speed ratio of the first planetary gear train 4, and the efficiency of the system is improved; the first planetary gear train 4 is connected with the system output shaft 8 through the disconnecting device 4a, so that the functions of series range extension and parallel driving are realized, and the electric driving device of the double-motor hybrid driving vehicle is realized.
The driving motor assembly 6 comprises a driving motor stator 6a and a driving motor rotor 6b connected with a driving motor output gear 10; a first driving output small gear 7a and a driving output large gear 7b are respectively arranged at two ends of the driving motor output intermediate shaft 7; a gear train output shaft gear 4e is also arranged on the first gear train output shaft 4 f; the driving motor rotor 6b is in transmission connection with a driving output big gear 7b through a driving motor output gear 10, and a first driving output small gear 7a is connected with a gear train output shaft gear 4 e. Therefore, the driving motor assembly 6 and the system output shaft 8 are connected and output, and the automobile is driven to run under the driving motor assembly 6.
The internal combustion engine 1 is connected through the first planetary gear ring 4b and the disconnecting and connecting device 4a, and the disconnecting and connecting device 4a can control the disconnection and connection of the internal combustion engine 1 and the system output shaft 8, so that different working states of the internal combustion engine 1 in the hybrid power system can be switched.
The generator assembly 3 comprises a generator stator 3a and a generator rotor 3 b; the first planetary gear train 4 further includes a first planetary ring 4b, a first planetary gear 4c, a first sun gear 4 d; generator rotor 3b and first sun gear 4d are connected, first planet wheel 4c and the meshing of the outer round teeth of a cogwheel of first sun gear 4d, first planet wheel 4b is connected with torsion damper subassembly 2, first planet carrier 4c links firmly together with the system's casing, thereby make internal-combustion engine 1 and generator component 3 can carry out the rotational speed coupling with fixed velocity ratio, realize the system electricity generation, the internal-combustion engine 1 of being convenient for simultaneously carries out high-efficient the matching with generator component 3, reach the effect of lifting system's efficiency.
An oil pump 11a is further arranged between the generator assembly 3 and the driving motor assembly 6, an oil pump driving gear 11b is arranged at the tail end of an oil pump output shaft 11 of the oil pump 11a, and the oil pump driving gear 11b is meshed with the outer ring of the first planetary gear ring 4b to drive the disconnecting and connecting device 4a to be opened and closed. When the pressure requirement of the system is low, oil pressure distribution action can be carried out through a switch assembly in the oil pump 11a, and the electronic pump controlled by the electronic control assembly 5 is matched to realize cooling and gear shaft lubrication of the driving motor assembly 6 and the generator assembly 3.
Example 2
A hybrid power transmission system as shown in fig. 2, which is an optimized design of embodiment 1, has a similar general structure, except that the output shaft 4f of the first gear train is not directly connected to the output shaft 8 of the system, and the output shaft 8 of the system is further provided with a large output gear 8b of the system; the transmission system also comprises a first internal combustion engine output intermediate shaft 9, two ends of which are provided with a first internal combustion engine output large gear 9b and a first internal combustion engine output small gear 9 a; the gear train output shaft gear 4e is meshed with the first internal combustion engine output large gear 9b, and the system output large gear 8b is simultaneously meshed with the first internal combustion engine output small gear 9a and the first driving output small gear 7 a. The internal combustion engine 1 is engaged with the first internal combustion engine output large gear 9b through the gear train output shaft gear 4e, is transmitted to the first internal combustion engine output small gear 9a through the first internal combustion engine output intermediate shaft 9, and then is engaged with the system output large gear 8b of the system output shaft 8.
Example 3
A hybrid power transmission system as shown in fig. 3, which is another optimized design of embodiment 1, has a similar general structure, except that the output shaft 4f of the first gear train is not directly connected with the output shaft 8 of the system, and the output shaft 8 of the system is further provided with a large system output gear 8b and a small system output gear 8 c; the transmission system also comprises a second internal combustion engine output intermediate shaft 12, and a second internal combustion engine output large gear 12a and a second internal combustion engine output small gear 12b are arranged at two ends of the second internal combustion engine output intermediate shaft; the gear train output shaft gear 4e is meshed with a second internal combustion engine output small gear 12b, a second internal combustion engine output large gear 12a is meshed with a system output small gear 8c, and a first driving output small gear 7a is meshed with a system output large gear 8 b.
Example 4
A hybrid power transmission system as shown in fig. 4, which is another optimized design of embodiment 1, has a similar general structure, except that the output shaft 4f of the first gear train is not directly connected to the output shaft 8 of the system, and the output shaft 8 of the system is further provided with a large output gear 8b of the system; a second driving output pinion 7c is also arranged in the middle of the driving motor output intermediate shaft 7; the gear train output shaft gear 4e is meshed with the second driving output pinion 7c, and the first driving output pinion 7a is meshed with the system output large gear 8 b.
The difference between the above embodiments 2 to 4 and embodiment 1 is that the output speed ratio of the internal combustion engine 1 is optimized, and an additional gear engagement arrangement is correspondingly added, so that the driving efficiency interval of the internal combustion engine 1 is optimized, and the system performance is improved.
Example 5
The hybrid power transmission system shown in fig. 5 comprises an internal combustion engine 1, a generator assembly 3, a first planetary gear train 4, a driving motor assembly 6 and a system output shaft 8 which are coaxially arranged in sequence; the internal combustion engine 1 is connected with a first planetary gear train 4 through a torsional damper 2; the generator component 3 is meshed with the first planetary gear train 4; a disconnecting and connecting device 4a is arranged on the first planetary gear train 4, the disconnecting and connecting device 4a is connected with a system output shaft 8 through a first gear train output shaft 4f on the disconnecting and connecting device, and the system output shaft 8 is connected with a vehicle transmission system through an output flange 8 a; the driving motor component 6 is connected with the system output shaft 8 through a second planetary gear train 13; the generator assembly 3 and the driving motor assembly 6 are both controlled by the electronic control assembly 5. The driving motor assembly 6 comprises a driving motor stator 6a and a driving motor rotor 6 b; the second planetary gear train 13 includes a second planetary ring gear 13a, a second planetary gear 13b, and a second sun gear 13 c; the system output shaft 8 is in transmission connection with a second planet wheel 13b, the driving motor rotor 6b is in meshing connection with the second planet wheel 13b through a second sun wheel 13c, and a second planet gear ring 13a is connected and arranged on a shell of the transmission system.
The connection of the parallel shafts is converted into the connection through the second planetary gear train 13, so that the axial expansion capacity of the system can be increased, and the integration complexity of the system is reduced; the drive motor rotor 6b of the drive motor assembly 6 is engaged by the second sun gear 13c and the second planet carrier 13b, while the second planet ring gear 13a is fixed to the housing of the system, outputting at a fixed speed ratio of the second planetary gear set 13. Correspondingly, the first planetary gear ring 4b is connected and output through the disconnecting device 4a, the second planetary gear carrier 13b and the system output shaft 8, so that the function of hybrid power transmission is realized.
It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.

Claims (9)

1. The hybrid power transmission system is characterized by comprising an internal combustion engine (1), a generator component (3), a first planetary gear train (4), a driving motor component (6) and a system output shaft (8) which are coaxially arranged in sequence;
the internal combustion engine (1) is connected with the first planetary gear train (4) through a torsional damper (2);
the generator assembly (3) is in meshed connection with the first planetary gear train (4);
a disconnecting and connecting device (4a) is arranged on the first planetary gear train (4), the disconnecting and connecting device (4a) is connected with the system output shaft (8) through a first gear train output shaft (4f) on the disconnecting and connecting device, and the system output shaft (8) is connected with a vehicle transmission system through an output flange (8 a);
the driving motor component (6) is connected with the system output shaft (8) through a driving motor output intermediate shaft (7);
the generator assembly (3) and the driving motor assembly (6) are both controlled by the electric control assembly (5).
2. A hybrid powertrain according to claim 1, characterized in that the drive motor assembly (6) comprises a drive motor stator (6a) and a drive motor rotor (6b) to which a drive motor output gear (10) is connected;
two ends of the driving motor output intermediate shaft (7) are respectively provided with a first driving output pinion (7a) and a driving output gearwheel (7 b);
a gear train output shaft gear (4e) is also arranged on the first gear train output shaft (4 f);
drive motor rotor (6b) pass through drive motor output gear (10) with drive output gear wheel (7b) transmission is connected, first drive output pinion (7a) with train output shaft gear (4e) are connected, with power transmission extremely system output shaft (8).
3. A hybrid powertrain according to claim 2, characterized by a first engine output countershaft (9) provided at both ends with a first engine output gearwheel (9b) and a first engine output pinion (9 a);
the first gear train output shaft (4f) is not directly connected with the system output shaft (8), and a system output gearwheel (8b) is also arranged on the system output shaft (8);
train output shaft gear (4e) with first internal-combustion engine output gear wheel (9b) meshing connection, system output gear wheel (8b) simultaneously with first internal-combustion engine output pinion (9a), first drive output pinion (7a) meshing connection.
4. A hybrid powertrain according to claim 2, further comprising a second engine output countershaft (12) provided at both ends thereof with a second engine output gearwheel (12a) and a second engine output pinion (12 b);
the first gear train output shaft (4f) is not directly connected with the system output shaft (8), and the system output shaft (8) is also provided with a system output large gear (8b) and a system output small gear (8 c);
train output shaft gear (4e) with second internal-combustion engine output pinion (12b) meshing connection, second internal-combustion engine output gear wheel (12a) with system output pinion (8c) meshing connection, system output gear wheel (8b) with first drive output pinion (7a) meshing connection.
5. A hybrid transmission system according to claim 2, characterised in that the first train output shaft (4f) is not directly connected to the system output shaft (8), and the system output shaft (8) is further provided with a system output gearwheel (8 b);
the middle part of the driving motor output intermediate shaft (7) is also provided with a second driving output pinion (7 c);
the gear train output shaft gear (4e) is in meshed connection with the second drive output pinion (7c), and the first drive output pinion (7a) is in meshed connection with the system output large gear (8 b).
6. The hybrid power transmission system is characterized by comprising an internal combustion engine (1), a generator component (3), a first planetary gear train (4), a driving motor component (6) and a system output shaft (8) which are coaxially arranged in sequence;
the internal combustion engine (1) is connected with the first planetary gear train (4) through a torsional damper (2);
the generator assembly (3) is in meshed connection with the first planetary gear train (4);
a disconnecting and connecting device (4a) is arranged on the first planetary gear train (4), the disconnecting and connecting device (4a) is connected with the system output shaft (8) through a first gear train output shaft (4f) on the disconnecting and connecting device, and the system output shaft (8) is connected with a vehicle transmission system through an output flange (8 a);
the driving motor component (6) is connected with the system output shaft (8) through a second planetary gear train (13);
the generator assembly (3) and the driving motor assembly (6) are both controlled by the electric control assembly (5).
7. Hybrid powertrain according to claim 6, characterized in that the drive motor assembly (6) comprises a drive motor stator (6a) and a drive motor rotor (6 b);
the second planetary gear train (13) comprises a second planetary gear ring (13a), a second planetary gear (13b) and a second sun gear (13 c);
the system output shaft (8) is in transmission connection with a second planet wheel (13b), the driving motor rotor (6b) is in meshing connection with the second planet wheel (13b) through a second sun wheel (13c), and a second planet gear ring (13a) is connected and arranged on a shell of the transmission system.
8. Hybrid powertrain according to any of claims 1-7, characterized in that the generator assembly (3) comprises a generator stator (3a) and a generator rotor (3 b);
the first planetary gear train (4) further comprises a first planetary gear ring (4b), a first planetary gear (4c) and a first sun gear (4 d);
the generator rotor (3b) is connected with the first sun gear (4d), the first planet gear (4c) is meshed with the outer gear teeth of the first sun gear (4d), and the first planet gear ring (4b) is connected with the torsion damper assembly (2).
9. The hybrid power transmission system according to claim 8, wherein an oil pump (11a) is further arranged between the generator assembly (3) and the driving motor assembly (6), an oil pump driving gear (11b) is arranged at the tail end of an oil pump output shaft (11) of the oil pump (11a), and the oil pump driving gear (11b) is meshed with the outer ring of the first planetary gear ring (4b) to drive the disconnecting and connecting device (4a) to open and close.
CN202110851138.2A 2021-07-27 2021-07-27 Hybrid power transmission system Pending CN113352869A (en)

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Application Number Priority Date Filing Date Title
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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160280215A1 (en) * 2015-03-24 2016-09-29 Toyota Jidosha Kabushiki Kaisha Control system for hybrid vehicle
CN107599819A (en) * 2017-09-27 2018-01-19 四川省特种设备检验研究院 A kind of power drive system of plug-in hybrid special purpose vehicle
CN107839467A (en) * 2017-12-08 2018-03-27 广西玉柴机器股份有限公司 A kind of integrated hybrid electric vehicle power output device of double electric machine double row planetary gear
CN111546872A (en) * 2020-06-15 2020-08-18 无锡明恒混合动力技术有限公司 Dual-motor hybrid vehicle driving device
CN111572328A (en) * 2020-05-20 2020-08-25 哈尔滨东安汽车发动机制造有限公司 Hybrid vehicle driving device
CN111605394A (en) * 2019-07-24 2020-09-01 蜂巢电驱动科技河北有限公司 Power transmission system for vehicle and vehicle
CN211892821U (en) * 2020-03-13 2020-11-10 上汽大众汽车有限公司 Double-motor coaxial hybrid gearbox

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160280215A1 (en) * 2015-03-24 2016-09-29 Toyota Jidosha Kabushiki Kaisha Control system for hybrid vehicle
CN107599819A (en) * 2017-09-27 2018-01-19 四川省特种设备检验研究院 A kind of power drive system of plug-in hybrid special purpose vehicle
CN107839467A (en) * 2017-12-08 2018-03-27 广西玉柴机器股份有限公司 A kind of integrated hybrid electric vehicle power output device of double electric machine double row planetary gear
CN111605394A (en) * 2019-07-24 2020-09-01 蜂巢电驱动科技河北有限公司 Power transmission system for vehicle and vehicle
CN211892821U (en) * 2020-03-13 2020-11-10 上汽大众汽车有限公司 Double-motor coaxial hybrid gearbox
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CN111546872A (en) * 2020-06-15 2020-08-18 无锡明恒混合动力技术有限公司 Dual-motor hybrid vehicle driving device

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