CN112918239A - Dual-motor hybrid power driving system for rear drive - Google Patents
Dual-motor hybrid power driving system for rear drive Download PDFInfo
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- CN112918239A CN112918239A CN202110290911.2A CN202110290911A CN112918239A CN 112918239 A CN112918239 A CN 112918239A CN 202110290911 A CN202110290911 A CN 202110290911A CN 112918239 A CN112918239 A CN 112918239A
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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
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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
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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
- B60K6/40—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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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
- B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
- B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
- B60K6/54—Transmission for changing ratio
- B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
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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
A double-motor hybrid power driving system for rear driving comprises an engine, a clutch and a transmission, wherein the transmission comprises an input shaft, an intermediate shaft, an output shaft, a first motor shaft of a first motor and a second motor shaft of a second motor, the input shaft is provided with a first gear driving gear, a second gear driving gear and a transmission gear, the intermediate shaft is sequentially provided with an output driving gear, a first gear driven gear and a second gear driven gear, the first gear driving gear is meshed with the first gear driven gear, the second gear driving gear is meshed with the second gear driven gear, the first input gear is circumferentially fixed on the first motor shaft, the second input gear is circumferentially fixed on the second motor shaft and meshed with the transmission gear, the output driven gear is circumferentially fixed on the output shaft, and the output driven gear is respectively meshed with the output driving gear and the first input gear; a synchronizer is arranged between the first gear driving gear and the second gear driving gear or between the first gear driven gear and the second gear driven gear, and the engine is connected with the input shaft through the clutch.
Description
Technical Field
The invention relates to the technical field of automobile power transmission, in particular to a dual-motor hybrid power driving system for rear driving.
Background
Along with the continuous consumption of non-renewable energy sources, the lack of energy sources is caused, and the national limit on the emission of automobile exhaust gas seriously restricts the development of the traditional fuel oil automobile, so that the passenger automobile is gradually developed towards a new energy automobile with low emission and low oil consumption, and the national makes clear requirements on the oil consumption of commercial vehicles. At present, a planetary row series-parallel connection scheme or a single-gear series-parallel connection scheme is adopted in the rear-drive longitudinal hybrid power transmission technical scheme, but the two schemes have limited oil saving rate, poor oil saving effect and large pollutant discharge amount.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a dual-motor hybrid power driving system for rear drive, which can ensure that the power is not interrupted during gear shifting, enables the gear shifting to be smoother, has a simple structure, is suitable for most rear drive vehicles, and has high transmission efficiency and good driving performance.
The technical scheme of the invention is as follows: a double-motor hybrid power driving system for rear driving comprises an engine, a clutch and a transmission, wherein the transmission comprises an input shaft, an intermediate shaft, an output shaft, a first motor shaft of a first motor and a second motor shaft of a second motor, a first gear driving gear, a second gear driving gear and a transmission gear are sequentially arranged on the input shaft, the transmission gear is circumferentially fixed on the input shaft, an output driving gear, a first gear driven gear and a second gear driven gear are sequentially arranged on the intermediate shaft, the output driving gear is circumferentially fixed on the intermediate shaft, the first gear driving gear is meshed with the first gear driven gear, the second gear driving gear is meshed with the second gear driven gear, the first input gear is circumferentially fixed on the first motor shaft of the first motor, the second input gear is circumferentially fixed on the second motor shaft of the second motor, and the second input gear is meshed with the transmission gear, an output driven gear is circumferentially fixed on the output shaft and is respectively meshed with the output driving gear and the first input gear; the synchronizer is circumferentially fixed on the middle shaft, the first gear driving gear and the second gear driving gear are circumferentially fixed on the input shaft respectively, the first gear driving gear and the second gear driving gear are respectively in clearance fit on the input shaft, the first gear driving gear and the second gear driving gear are respectively in clearance fit on the middle shaft, and the engine is connected with the input shaft through the clutch.
When a synchronizer is arranged between the first-gear driving gear and the second-gear driving gear, the opposite ends of the first-gear driving gear and the second-gear driving gear are respectively provided with a joint tooth, and a gear ring of the synchronizer is respectively corresponding to the joint teeth of the first-gear driving gear and the second-gear driving gear; when a synchronizer is arranged between the first-gear driven gear and the second-gear driven gear, the opposite ends of the first-gear driven gear and the second-gear driven gear are respectively provided with a joint tooth, and a gear ring of the synchronizer is respectively corresponding to the joint teeth of the first-gear driven gear and the second-gear driven gear.
The gearbox is provided with abdicating spaces for installing the first motor and the second motor, a first motor shaft of the first motor and a second motor shaft of the second motor respectively extend into the gearbox, and the first motor shaft and the second motor shaft are respectively supported on a shell of the gearbox through bearings.
The input shaft, the intermediate shaft, a first motor shaft of the first motor and a second motor shaft of the second motor are arranged in parallel.
The clutch adopts a dry clutch or a wet clutch.
Adopt above-mentioned technical scheme: the transmission comprises an engine, a clutch and a transmission, wherein the transmission comprises an input shaft, an intermediate shaft, an output shaft, a first motor shaft of a first motor and a second motor shaft of a second motor, a first gear driving gear, a second gear driving gear and a transmission gear are sequentially arranged on the input shaft, the transmission gear is circumferentially fixed on the input shaft, an output driving gear, a first gear driven gear and a second gear driven gear are sequentially arranged on the intermediate shaft, the output driving gear is circumferentially fixed on the intermediate shaft, the first gear driving gear is meshed with the first gear driven gear, the second gear driving gear is meshed with the second gear driven gear, the first input gear is circumferentially fixed on the first motor shaft of the first motor, the second input gear is circumferentially fixed on the second motor shaft of the second motor, the second input gear is meshed with the transmission gear, and the output driven gear is circumferentially fixed on the output shaft, the output driven gear is respectively meshed with the output driving gear and the first input gear; the synchronizer is circumferentially fixed on the middle shaft, the first gear driving gear and the second gear driving gear are circumferentially fixed on the input shaft respectively, the first gear driving gear and the second gear driving gear are respectively in clearance fit on the input shaft, the first gear driving gear and the second gear driving gear are respectively in clearance fit on the middle shaft, and the engine is connected with the input shaft through the clutch. Set up two fender positions among this actuating system, can satisfy the power demand of vehicle, reduce the oil consumption, can save the space of arranging again, make whole actuating system's structure compacter, be applicable to most rear-drive type vehicles on the market, and, this actuating system can carry out power compensation through first motor at the in-process of shifting, thereby power when guaranteeing to shift is continuous, it is more smooth-going to make to shift, improve and drive and experience the sense, and simultaneously, this actuating system can also advance the in-process at the vehicle through the second motor and start the engine, promote whole actuating system's dynamic property and driveability, furthermore, this actuating system transmission efficiency is high, can reduce the vehicle oil consumption, reduce the pollutant discharge.
When a synchronizer is arranged between the first-gear driving gear and the second-gear driving gear, the opposite ends of the first-gear driving gear and the second-gear driving gear are respectively provided with a joint tooth, and a gear ring of the synchronizer is respectively corresponding to the joint teeth of the first-gear driving gear and the second-gear driving gear; when a synchronizer is arranged between the first-gear driven gear and the second-gear driven gear, the opposite ends of the first-gear driven gear and the second-gear driven gear are respectively provided with a joint tooth, and a gear ring of the synchronizer is respectively corresponding to the joint teeth of the first-gear driven gear and the second-gear driven gear. According to the installation position of the synchronizer, joint teeth corresponding to the synchronizer are arranged on the first-gear driving gear, the second-gear driving gear or the first-gear driven gear and the second-gear driven gear, and power transmission between the input shaft and the intermediate shaft is achieved.
The gearbox is provided with abdicating spaces for installing the first motor and the second motor, a first motor shaft of the first motor and a second motor shaft of the second motor respectively extend into the gearbox, and the first motor shaft and the second motor shaft are respectively supported on a shell of the gearbox through bearings. Install first motor and second motor outside the derailleur respectively, the arrangement of the internal gear train of derailleur of being convenient for distributes, also makes the radiating effect of first motor and second motor better simultaneously, is favorable to the long-term steady operation of actuating system.
The input shaft, the intermediate shaft, the first motor shaft of the first motor and the second motor shaft of the second motor are arranged in parallel, so that the arrangement of gears in the transmission is more compact, and the position space required by the whole starting system is favorably reduced.
The invention is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.
Detailed Description
Referring to fig. 1 to 2, the dual-motor hybrid power driving system for rear driving comprises an engine 1, a clutch 2 and a transmission 17, wherein the transmission 17 comprises an input shaft 5, an intermediate shaft 6, an output shaft 18, a first motor shaft 4-1 of a first motor 4 and a second motor shaft 3-1 of a second motor 3, and the output shaft 18 is connected with a rear axle of a whole vehicle. The input shaft, the intermediate shaft 6, the first motor shaft 4-1 of the first motor 4 and the second motor shaft 3-1 of the second motor 3 are arranged in parallel, so that the gear arrangement in the transmission 17 is more compact, and the position space required by the whole starting system is favorably reduced. The transmission 17 is provided with abdicating spaces for installing the first motor 4 and the second motor 3, the first motor 4 and the second motor 3 are respectively installed outside the transmission 17, so that the heat dissipation effects of the two motors are better, and the long-term stable operation of the driving system is facilitated, the first motor shaft 4-1 of the first motor 4 and the second motor shaft 3-1 of the second motor 3 respectively extend into the transmission 17, the first motor shaft 4-1 and the second motor shaft 3-1 are respectively supported on the shell of the transmission 17 through bearings, the arrangement distribution of gear sets in the transmission 17 is facilitated, and the structure of the whole driving system is more compact. The input shaft 5 is sequentially provided with a first-gear driving gear 7, a second-gear driving gear 8 and a transmission gear 12, the transmission gear 12 is circumferentially fixed on the input shaft 5, the intermediate shaft 6 is sequentially provided with an output driving gear 14, a first-gear driven gear 9 and a second-gear driven gear 10, and the output driving gear 14 is circumferentially fixed on the intermediate shaft 6. The first gear driving gear 7 is meshed with the first gear driven gear 9 to form a first gear pair; two keep off driving gear 8 and two keep off driven gear 10 meshing, form two and keep off the gear pair, set up two fender position, can satisfy the power demand of vehicle, can save the arrangement space again. A first input gear 16 is circumferentially fixed on a first motor shaft 4-1 of the first motor 4, a second input gear 13 is circumferentially fixed on a second motor shaft 3-1 of the second motor 3, the second input gear 13 is meshed with the transmission gear 12, an output driven gear 15 is circumferentially fixed on the output shaft 18, and the output driven gear 15 is respectively meshed with the output driving gear 14 and the first input gear 16, so that the torque of the first motor shaft 4-1 can be transmitted to the output shaft 18 only through a group of gears of the first input gear 16 and the output driven gear 15, and the transmission efficiency of the first motor 4 can be improved. A synchronizer 11 is arranged between the first-gear driving gear 7 and the second-gear driving gear 8 or between the first-gear driven gear 9 and the second-gear driven gear 10, and power transmission between the input shaft 5 and the intermediate shaft 6 is realized through the synchronizer 11. The engine 1 is connected with the input shaft 5 through the clutch 2, the clutch 2 adopts a dry clutch or a wet clutch, the engine and the engine 1 can adopt a four-cylinder engine or a three-cylinder engine, or other engines with similar functions, when the clutch 2 is disconnected, the engine 1 is disconnected with the input shaft 5 to carry out power transmission, and when the clutch 2 is connected, the engine 1 is connected with the input shaft 5 to carry out power transmission.
In embodiment 1, as shown in fig. 1, when a synchronizer 11 is disposed between a first-gear driven gear 9 and a second-gear driven gear 10, the synchronizer 11 is circumferentially fixed on an intermediate shaft 6, the first-gear driving gear 7 and the second-gear driving gear 8 are circumferentially fixed on an input shaft 5, the first-gear driven gear 9 and the second-gear driven gear 10 are respectively clearance-fitted on the intermediate shaft 6, and opposite ends of the first-gear driven gear 9 and the second-gear driven gear 10 are respectively provided with engaging teeth, gear rings of the synchronizer 11 correspond to the engaging teeth of the first-gear driven gear 9 and the second-gear driven gear 10, so that the synchronizer 11 is engaged with the corresponding first-gear driven gear 9 or second-gear driven gear 10, thereby completing power transmission between the input shaft 5 and the intermediate shaft 6 and realizing a first-gear function and a second-gear function of a driving system.
In embodiment 2, as shown in fig. 2, when a synchronizer 11 is disposed between the first-gear driving gear 7 and the second-gear driving gear 8, the synchronizer 11 is circumferentially fixed on the input shaft 5, the first-gear driving gear 7 and the second-gear driving gear 8 are respectively in clearance fit on the input shaft 5, the first-gear driven gear 9 and the second-gear driven gear 10 are respectively circumferentially fixed on the intermediate shaft 6, opposite ends of the first-gear driving gear 7 and the second-gear driving gear 8 are respectively provided with engaging teeth, and gear rings of the synchronizer 11 respectively correspond to the engaging teeth of the first-gear driving gear 7 and the second-gear driving gear 8, so that the synchronizer 11 is engaged with the corresponding first-gear driving gear 7 or second-gear driving gear 8, thereby completing power transmission between the input shaft 5 and the intermediate shaft 6 and realizing the first-gear function and the second.
In operation, taking the synchronizer 11 located between the first-gear driven gear 9 and the second-gear driven gear 10 as an example, the dual-motor hybrid power driving system has the following working modes:
1. engine only mode
The first gear is driven, the clutch 2 is engaged, the first motor 4 does not work, the engine 1 transmits torque to the input shaft 5, the synchronizer 11 is engaged with the first gear driven gear 9, the input shaft 5 transmits the torque to the intermediate shaft 6 through the first gear driving gear 7 and the second gear driven gear 9, then the intermediate shaft 6 transmits the torque to the output shaft 18 through the output driving gear 14 and the output driven gear 15, and finally the output shaft 18 outputs power to the rear axle of the automobile. Meanwhile, when the engine 1 transmits the torque to the input shaft 5, the torque on the input shaft 5 is transmitted to the second motor shaft 3-1 of the first motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 rotates to charge the battery.
The second gear is driven, the clutch 2 is engaged, the first motor 4 does not work, the engine 1 transmits torque to the input shaft 5, the synchronizer 11 is engaged with the second gear driven gear 10, the input shaft 5 transmits the torque to the intermediate shaft 6 through the second gear driving gear 8 and the second gear driven gear 10, then the intermediate shaft 6 transmits the torque to the output shaft 18 through the output driving gear 14 and the output driven gear 15, and finally the power is output to the rear axle of the automobile through the output shaft 18. Meanwhile, when the engine 1 transmits the torque to the input shaft 5, the torque on the input shaft 5 is transmitted to the second motor shaft 3-1 of the first motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 rotates to charge the battery.
2. Electric only mode
The engine 1 and the second motor 3 stop running, and the first motor 4 runs to transmit torque to the output shaft 18 through the first input gear 16 and the output driven gear 15, so that the output shaft 18 outputs power to the rear axle of the automobile.
3. Hybrid drive mode
The first gear drive is performed, the clutch 2 is engaged, the engine 1 and the first motor 4 are both in a working state, the engine 1 transmits torque to the input shaft 5, the synchronizer 11 is engaged with the first gear driven gear 9, the input shaft 5 transmits the torque to the intermediate shaft 6 through the first gear driving gear 7 and the first gear driven gear 9, then the intermediate shaft 6 transmits the torque to the output shaft 18 through the output driving gear 14 and the output driven gear 15, meanwhile, the first motor shaft 4-1 of the first motor 4 transmits the torque to the output shaft 18 through the first input gear 16 and the output driven gear 15, so that the power of the engine 1 and the first motor 4 is coupled on the output shaft 18, and finally the coupled power is transmitted to the rear axle of the automobile through the output shaft 18. When the engine 1 transmits torque to the input shaft 5, the input shaft 5 can transmit torque to the second motor shaft 3-1 of the second motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 is operated to charge the battery.
The second gear drive, the clutch 2 is engaged, the engine 1 and the first motor 4 are both in working state, the engine 1 transmits torque to the input shaft 5, the synchronizer 11 is engaged with the second gear driven gear 10, the input shaft 5 transmits torque to the intermediate shaft 6 through the second gear driving gear 8 and the second gear driven gear 10, then the intermediate shaft 6 transmits torque to the output shaft 18 through the output driving gear 14 and the output driven gear 15, meanwhile, the first motor shaft 4-1 of the first motor 4 transmits torque to the output shaft 18 through the first input gear 16 and the output driven gear 15, so that the power of the engine 1 and the first motor 4 is coupled on the output shaft 18, and finally the coupled power is transmitted to the rear axle of the automobile through the output shaft 18. When the engine 1 transmits torque to the input shaft 5, the input shaft 5 can transmit torque to the second motor shaft 3-1 of the second motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 is operated to charge the battery.
Furthermore, the engine 1, the first motor 4 and the second motor 3 can work simultaneously to carry out hybrid driving, the clutch 2 is combined, the engine 1 transmits torque to the input shaft 5, the second motor 3 transmits torque to the input shaft 5 through the second input gear 13 and the transmission gear 12, so that the power of the engine 1 and the second motor 3 is coupled on the input shaft 5, then the input shaft 5 transmits the coupled power to the intermediate shaft 6 through the corresponding first gear pair or second gear pair, and then the intermediate shaft 6 transmits the coupled power to the output shaft 18 through the output driving gear 14 and the output driven gear 15, meanwhile, the first motor 4 transmits torque to the output shaft 18 through the first input gear 16 and the output driven gear 15, so that the power of the engine 1, the first motor 4 and the second motor 3 is combined with the output shaft 18, and the combined power is transmitted to the rear axle of the automobile through the output shaft 18, hybrid driving is realized.
In addition, the first motor 4 can also provide power for driving the whole vehicle independently, at the moment, the torque transmitted to the input shaft 5 by the engine 1 is transmitted to the second motor shaft 3-1 of the second motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 rotates to charge the battery, and then the battery provides power for the first motor 4, and the range extending mode under hybrid driving is realized.
4. Energy recovery mode
When the clutch 2 is engaged, the engine 1, the first motor 4 and the second motor 3 are all in working states, the engine 1 transmits torque to the input shaft 5, then the input shaft 5 transmits the torque to the second motor shaft 3-1 of the second motor 3 through the transmission gear 12 and the second input gear 13, so that the second motor 3 charges the battery, meanwhile, the rear axle of the whole vehicle transmits the torque to the output shaft 18 during braking, the output shaft 18 transmits power to the first motor shaft 4-1 of the first motor 4 through the output driven gear 15 and the first input gear 16, so that the first motor charges the battery.
When the clutch 2 is disconnected, the engine 1 and the second motor 3 are both in a non-operating state, the first motor 4 works, at the moment, the rear axle of the whole vehicle transfers torque to the output shaft 18 during braking, and the output shaft 18 transfers power to the first motor shaft 4-1 of the first motor 4 through the output driven gear 15 and the first input gear 16, so that the first motor charges a battery.
5. Starting an engine
The clutch 2 is engaged, the first motor 4 is not operated, the power of the second motor 3 is transmitted to the input shaft 5 through the second input gear 13 and the transmission gear 12, and then the input shaft 5 transmits the torque to the engine 1 through the clutch 2, thereby starting the engine 1.
6. Dynamic compensation
In the gear shifting process, the first motor 4 transmits torque to the output shaft 18 through the first input gear 16 and the output driven gear 15 for driving the vehicle, so that power compensation during gear shifting is realized, and continuity of power is guaranteed.
Similarly, another embodiment of the driving system can also realize the above operation modes.
The driving system can reduce the oil consumption of the vehicle and reduce the emission of pollutants, has simple and compact structure, saves the layout space, is suitable for the layout space of various rear-drive vehicles such as micro-trucks, light trucks, pickup trucks and the like in the market, and is suitable for wide vehicle types, and the driving system tends to be electrified and miniaturized. Moreover, this actuating system can carry out power compensation through first motor 4 at the in-process of shifting, thereby guarantee that the power when shifting is continuous, it is more smooth-going to make to shift, improve the driving and experience and feel, simultaneously, this actuating system can also start engine 1 at the vehicle in-process of marcing through second motor 3, promote whole actuating system's dynamic property and driveability, in addition, first motor 4 and engine 1, the power of second motor 3 can directly converge on output shaft 18, can reduce actuating system's power loss, improve transmission efficiency.
Claims (5)
1. A dual-motor hybrid drive system for rear drive, comprising an engine (1), a clutch (2), a transmission (17), characterized in that: the transmission (17) comprises an input shaft (5), an intermediate shaft (6), an output shaft (18), a first motor shaft (4-1) of a first motor (4) and a second motor shaft (3-1) of a second motor (3), wherein a first gear driving gear (7), a second gear driving gear (8) and a transmission gear (12) are sequentially arranged on the input shaft (5), the transmission gear (12) is circumferentially fixed on the input shaft (5), an output driving gear (14), a first gear driven gear (9) and a second gear driven gear (10) are sequentially arranged on the intermediate shaft (6), the output driving gear (14) is circumferentially fixed on the intermediate shaft (6), the first gear driving gear (7) is meshed with the first gear driven gear (9), the second gear driving gear (8) is meshed with the second gear driven gear (10), and a first input gear (16) is circumferentially fixed on the first motor shaft (4-1) of the first motor (4) A second input gear (13) is circumferentially fixed on a second motor shaft (3-1) of the second motor (3), the second input gear (13) is meshed with the transmission gear (12), an output driven gear (15) is circumferentially fixed on the output shaft (18), and the output driven gear (15) is respectively meshed with the output driving gear (14) and the first input gear (16); the synchronizer (11) is arranged between the first gear driving gear (7) and the second gear driving gear (8) or between the first gear driven gear (9) and the second gear driven gear (10), the synchronizer (11) is arranged between the first gear driving gear (7) and the second gear driving gear (8), the synchronizer (11) is circumferentially fixed on the input shaft (5), the first gear driving gear (7) and the second gear driving gear (8) are respectively in clearance fit on the input shaft (5), the first gear driven gear (9) and the second gear driven gear (10) are respectively circumferentially fixed on the intermediate shaft (6), the synchronizer (11) is arranged between the first gear driven gear (9) and the second gear driven gear (10), the synchronizer (11) is circumferentially fixed on the intermediate shaft (6), the first gear driving gear (7) and the second gear driving gear (8) are respectively circumferentially fixed on the input shaft (5), the first gear driven gear (9) and the second gear driven gear (10) are in clearance fit with the intermediate shaft (6) respectively, and the engine (1) is connected with the input shaft (5) through the clutch (2).
2. The dual motor hybrid drive system for rear drive of claim 1, characterized in that: when a synchronizer (11) is arranged between the first-gear driving gear (7) and the second-gear driving gear (8), the opposite ends of the first-gear driving gear (7) and the second-gear driving gear (8) are respectively provided with a joint tooth, and a gear ring of the synchronizer (11) is respectively corresponding to the joint teeth of the first-gear driving gear (7) and the second-gear driving gear (8); when setting up synchronous ware (11) between one fender driven gear (9), two fender driven gear (10), one keeps off driven gear (9), two keep off driven gear (10) and set up the joint tooth respectively in opposite directions one end, the ring gear of synchronous ware (11) corresponds with the joint tooth that keeps off driven gear (9), two keep off driven gear (10) respectively.
3. The dual motor hybrid drive system for rear drive of claim 1, characterized in that: the stepping space for installing the first motor (4) and the second motor (3) is arranged on the speed changer (17), the first motor shaft (4-1) of the first motor (4) and the second motor shaft (3-1) of the second motor (3) extend into the speed changer (17) respectively, and the first motor shaft (4-1) and the second motor shaft (3-1) are supported on the shell of the speed changer (17) through bearings respectively.
4. The dual-motor hybrid drive system of claim 1, wherein: the input shaft (5), the intermediate shaft (6), a first motor shaft (4-1) of the first motor (4) and a second motor shaft (3-1) of the second motor (3) are arranged in parallel.
5. The dual motor hybrid drive system for rear drive of claim 1, characterized in that: the clutch (2) adopts a dry clutch or a wet clutch.
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| CN202110290911.2A CN112918239A (en) | 2021-03-18 | 2021-03-18 | Dual-motor hybrid power driving system for rear drive |
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| CN202110290911.2A CN112918239A (en) | 2021-03-18 | 2021-03-18 | Dual-motor hybrid power driving system for rear drive |
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| CN202110290911.2A Pending CN112918239A (en) | 2021-03-18 | 2021-03-18 | Dual-motor hybrid power driving system for rear drive |
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Application publication date: 20210608 |