CN213082897U - Dual-motor hybrid power driving system and hybrid power vehicle - Google Patents
Dual-motor hybrid power driving system and hybrid power vehicle Download PDFInfo
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- CN213082897U CN213082897U CN202020333857.6U CN202020333857U CN213082897U CN 213082897 U CN213082897 U CN 213082897U CN 202020333857 U CN202020333857 U CN 202020333857U CN 213082897 U CN213082897 U CN 213082897U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/62—Hybrid vehicles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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Abstract
The utility model discloses a bi-motor hybrid drive system and hybrid vehicle, including engine, first motor, second motor, derailleur, the derailleur includes first input shaft subassembly, intermediate shaft subassembly, second input shaft subassembly and differential mechanism, and wherein second motor and engine lug connection can directly be used for starting the engine, and the engine also can directly charge to the second motor, because engine and second motor lug connection do not have the intermediate gear transmission, consequently transmission efficiency and generating efficiency all compare higher. Carry out power benefit through first motor and turn round in the process of shifting gears, the process of shifting gears power can not be interrupted, and drivability is superior. First motor output has two fender position, and the high-efficient interval of utilization motor that can be better reaches higher pure electric motor speed and stronger pure electric drive power to the various different operating modes of better adaptation.
Description
Technical Field
The utility model relates to a vehicle field, concretely relates to bi-motor hybrid driving system and hybrid vehicle.
Background
With the increasing shortage of petroleum supply and the increasing increase of environmental pollution, the development and utilization of new energy vehicles have gradually become a trend. The hybrid electric vehicle in the new energy vehicle can be driven by the engine or the motor or the engine and the motor simultaneously, and has multiple driving modes, so that the engine and the motor can run in a high-efficiency interval as much as possible, and the hybrid electric vehicle has good fuel economy and low emission.
The currently known dual-motor system is represented by a hybrid power transmission system such as a gasoline EDU (electric drive unit), a Toyota E-CVT (electric-constant voltage transformer), and the Toyota E-CVT comprises two motors and a planetary gear transmission device, and the power transmission route of the dual-motor system is as follows: 1) driving an engine: engine-first motor-planetary gear set-external gear ring-output shaft, 2) pure electric drive: second motor-external gear ring-output shaft, 3) hybrid drive: the engine-first electric machine combines the second electric machine-the planetary gear set-the outer ring gear-the output shaft. The transmission system has the advantages of smooth speed change, high transmission efficiency and simple structure, and has the defects of no pure engine operation mode and fixed and invariable transmission ratio of the motor.
Go up vapour EDU including engine, a generator motor, a driving motor, two clutches and a two keep off drive gear group, because engine and two motors are coaxial arranging, power motor can not carry out the output and mend the turn round because of arranging on the input shaft, so need interrupt the moment of torsion when shifting, shift the travelling comfort poor.
Disclosure of Invention
The utility model aims at the not enough that prior art exists, provide a bi-motor hybrid drive system and hybrid vehicle, the utility model discloses a bi-motor hybrid drive system has many advantages such as transmission efficiency height, compact structure, light in weight, alleviates the power interruption problem that appears when shifting that conventional derailleur traded in engine drive, the hybrid drive mode, has improved the travelling comfort of shifting, has guaranteed that the vehicle has good dynamic nature and the characteristic of shifting, and pure electric operating mode has two motors to keep off the position, keeps off the position variable, guarantees that the vehicle has good economic nature, reduces vehicle oil consumption and pollutant discharge.
The utility model aims at adopting the following scheme to realize: the utility model discloses a double-motor hybrid power driving system, which comprises an engine, a first motor, a second motor and a speed changer, wherein the speed changer comprises a first input shaft assembly, a middle shaft assembly, a second input shaft assembly and a differential mechanism, the first input shaft assembly comprises a first input shaft, the first input shaft is a hollow shaft, the engine and the second motor are respectively arranged at two ends of the first input shaft, an output shaft of the engine is fixedly connected with a motor shaft of the second motor, an output shaft of the engine is connected with the first input shaft through a clutch, a first gear input gear and a second gear input gear are arranged on the first input shaft, the middle shaft assembly comprises a middle shaft, a first gear output gear, a second gear output gear, a first gear output gear of the motor, a second gear output gear of the motor are sleeved on the middle shaft, the first gear output gear is meshed with the first gear input gear, a first gear pair is formed, the second gear output gear is meshed with a second gear input gear to form a second gear pair, a first gear synchronizer and a second gear synchronizer are arranged between the first gear output gear and the second gear output gear and are fixedly connected with a middle shaft, a motor gear synchronizer is arranged between the motor first gear output gear and the motor second gear output gear and is fixedly connected with the middle shaft, the second input shaft assembly comprises a second input shaft, a motor first gear input gear, a motor second gear input gear and a motor middle gear are arranged on the second input shaft, the motor first gear input gear is meshed with the motor first gear output gear to form a motor first gear pair, the motor second gear input gear is meshed with the motor second gear output gear to form a motor second gear pair, the motor middle gear is meshed with the motor input gear, and the motor input gear is fixedly arranged on a motor shaft of the first motor, and a constant mesh gear is arranged on the intermediate shaft and is meshed with an input gear of the differential mechanism or is meshed with the input gear of the differential mechanism through an output gear. The first gear input gear, the second gear input gear and the first input shaft are fixedly connected in the circumferential direction, and can also be integrally formed with the first input shaft into a whole and arranged as required. Constant mesh gear and jackshaft circumference fixed connection also can be as a whole with jackshaft integrated into one piece, set up as required. The motor intermediate gear is fixedly connected with the second input shaft in the circumferential direction, and can also be integrally formed with the second input shaft into a whole and arranged as required. The first gear input gear of the motor and the second gear input gear of the motor are circumferentially and fixedly connected with the second input shaft, and can also be integrally formed with the second input shaft into a whole and arranged as required. The output gear is fixedly connected with the output shaft in the circumferential direction, and can also be integrally formed with the output shaft into a whole and arranged as required.
The utility model discloses a double-motor hybrid power driving system, which comprises an engine, a first motor, a second motor and a speed changer, wherein the speed changer comprises a first input shaft component, a middle shaft component, a second input shaft component and a differential mechanism, the first input shaft component comprises a first input shaft, the first input shaft is a hollow shaft, the engine and the second motor are respectively arranged at two ends of the first input shaft, an output shaft of the engine is fixedly connected with a motor shaft of the second motor, an output shaft of the engine is connected with the first input shaft through a clutch, a first gear input gear and a second gear input gear are arranged on the first input shaft, the middle shaft component comprises a middle shaft, a first gear output gear and a second gear output gear are sleeved on the middle shaft, a second gear synchronizer is arranged between the first gear output gear and the second gear output gear, the first gear synchronizer is fixedly connected with a middle shaft, the first gear output gear is meshed with a first gear input gear to form a first gear pair, the second gear output gear is meshed with a second gear input gear to form a second gear pair, a motor first gear output gear and a motor second gear output gear are further arranged on the middle shaft, the second input shaft assembly comprises a second input shaft, a motor first gear input gear and a motor second gear input gear are sleeved on the second input shaft in a hollow mode, a motor gear synchronizer is arranged between the motor first gear input gear and the motor second gear input gear and is fixedly connected with the second input shaft, the motor first gear input gear is meshed with the motor first gear output gear to form a motor first gear pair, the motor second gear input gear is meshed with the motor second gear output gear to form a motor second gear pair, and a motor middle gear is further arranged on the second input shaft, the motor intermediate gear is meshed with the motor input gear, the motor input gear is fixedly arranged on a motor shaft of the first motor, the intermediate shaft is further provided with a normally meshed gear, and the normally meshed gear is meshed with the input gear of the differential mechanism or meshed with the input gear of the differential mechanism through the output gear. The first gear input gear, the second gear input gear and the first input shaft are fixedly connected in the circumferential direction, and can also be integrally formed with the first input shaft into a whole and arranged as required. Constant mesh gear and jackshaft circumference fixed connection also can be as a whole with jackshaft integrated into one piece, set up as required. The first gear output gear of the motor and the second gear output gear of the motor are circumferentially and fixedly connected with the intermediate shaft, and can also be integrally formed with the intermediate shaft into a whole and arranged as required. The motor intermediate gear is fixedly connected with the second input shaft in the circumferential direction, and can also be integrally formed with the second input shaft into a whole and arranged as required.
The output gear is fixedly connected with the output shaft in the circumferential direction, and can also be integrally formed with the output shaft into a whole and arranged as required.
Further, the clutch comprises a clutch outer hub and a clutch inner hub, the clutch outer hub of the clutch is fixedly connected with the output shaft of the engine, and the clutch inner hub of the clutch is fixedly connected with the first input shaft.
Further, both ends of the intermediate shaft are supported in a housing of the transmission through bearings.
Further, both ends of the second input shaft are supported in a housing of the transmission through bearings.
Further, the output gear is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
Further, the axial lead of the output shaft of the engine, the shaft of the motor shaft of the second motor and the axial lead of the first input shaft are positioned on the same straight line.
The utility model also discloses a hybrid vehicle has adopted above-mentioned bi-motor hybrid driving system.
The utility model has the advantages that: because the utility model discloses motor drive mode, engine drive mode, hybrid drive mode have, the utility model discloses in the motor exclusive work, can adopt first motor start, or start engine start with the second motor under the rotational speed and the moment of torsion condition that are fit for the engine start. When the engine and the motor are driven in a mixed mode, the first gear or the second gear of the engine can be selected to transmit power timely according to road condition requirements. When the engine works alone, the motor can be charged and fed back. The utility model discloses carry out power benefit through first motor at the in-process of shifting and turn round, the process of shifting power can not break off, and drivability is superior.
The utility model discloses there are two motors to keep off the position, can switch the fender position at any time according to the operating mode of difference, and a plurality of motor drive ratio can more adapt to various different complicated operating modes.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of a dual-motor hybrid drive system according to the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the dual-motor hybrid drive system of the present invention;
fig. 3 is a pure electric mode path diagram (1 st gear) of the first embodiment of the present invention;
fig. 4 is a pure electric mode path diagram (2 th gear) of the first embodiment of the present invention;
fig. 5 is a pure engine mode path diagram (first gear) of the first embodiment of the present invention;
fig. 6 is a pure engine mode path diagram (second gear) according to the first embodiment of the present invention;
fig. 7 shows a hybrid mode (first engine gear and first motor gear) according to the first embodiment of the present invention;
fig. 8 shows a hybrid mode (second engine speed, first motor speed) according to the first embodiment of the present invention;
fig. 9 shows a hybrid mode (first gear of the engine and second gear of the motor) according to the first embodiment of the present invention;
fig. 10 shows the hybrid mode (second gear for the engine and second gear for the motor) according to the first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, detailed embodiments are given, and the present invention will be further described in detail with reference to the accompanying drawings:
example one
Referring to fig. 1, the embodiment discloses a dual-motor hybrid power drive system, which specifically includes an engine 1, a clutch, a transmission, a first motor 7, and a second motor 4; the clutch comprises a clutch outer hub 2-2 and a clutch inner hub 2-1; the transmission includes a first input shaft assembly 3, a countershaft assembly 5, a second input shaft assembly 6, and a differential and output gear 15. The first input shaft assembly 3 comprises a first input shaft 3-3, a first-gear input gear 3-1 and a second-gear input gear 3-3; the first gear input gear 3-1 is fixedly connected with the first input shaft 3-3, and the second gear input gear 3-3 is fixedly connected with the first input shaft 3-3. The first input shaft 3-3 is fixedly connected with the clutch inner hub 2-1; the engine 1 is fixedly connected with the clutch outer hub 2-2, and the second motor 4 is directly and circumferentially fixedly connected with the engine 1; the axial lead of the output shaft of the engine 1 and the motor shaft of the second motor 4 and the axial lead of the first input shaft 3-3 are positioned on the same straight line. The first input shaft 3-3 is a hollow shaft, and is used for an output shaft of the engine 1 or a motor shaft of the second motor 4 to extend into or pass through. The intermediate shaft assembly 5 comprises an intermediate shaft 5-8, a normally meshed gear 5-1, a first gear output gear 5-2, a second gear output gear 5-4, a first gear synchronizer 5-3, a motor gear synchronizer 5-6, a first motor gear output gear 5-5 and a second motor gear output gear 5-7; the intermediate shaft 5-8 is fixedly connected with a normally meshed gear 5-1, and the first-gear output gear 5-2 is sleeved on the intermediate shaft 5-8 in an empty mode and idles on the intermediate shaft 5-8; the second-gear output gear 5-4 is sleeved on the intermediate shaft 5-8 in an empty way and idles on the intermediate shaft 5-8; the second gear synchronizer 5-3 is fixedly connected to the intermediate shaft 5-8; the motor gear synchronizer 5-6 is fixedly connected to the intermediate shaft 5-8; the first-gear output gear 5-5 of the motor and the second-gear output gear 5-7 of the motor are sleeved on the middle shaft 5-8 in an empty mode and idle on the middle shaft 5-8; the second input shaft assembly 6 comprises a second input shaft 6-2, a first motor gear input gear 6-1, a second motor gear input gear 6-3 and a motor intermediate gear 6-4, and the first motor gear input gear 6-1, the second motor gear input gear 6-3 and the motor intermediate gear 6-4 are fixedly connected with the second input shaft 6-2;
the first-gear input gear 3-1 is meshed with the first-gear output gear 5-2 to form a first-gear pair, and the second-gear input gear 3-3 is meshed with the second-gear output gear 5-4 to form a second-gear pair; the first-gear output gear 5-5 of the motor is meshed with the first-gear input gear 6-1 of the motor to form a first-gear pair of the motor, and the second-gear output gear 5-7 of the motor is meshed with the second-gear input gear 6-3 of the motor to form a second-gear pair of the motor;
the constant mesh gear 5-1 meshes with the output gear 15. The motor intermediate gear 6-4 is meshed with the motor input gear 7-1;
the first motor 7 is fixedly connected with a motor input gear 7-1;
the engine 1 may be a three-cylinder or four-cylinder engine 1, or may be another engine 1.
Further, both ends of the intermediate shafts 5 to 8 are supported in a housing of the transmission through bearings.
Further, both ends of the second input shaft 6-2 are supported in a housing of the transmission through bearings.
Further, the output gear 15 is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
Example two
Referring to fig. 2, the present embodiment discloses a dual-motor hybrid driving system, which is characterized in that: the transmission comprises an engine 1, a first motor 7, a second motor 4 and a transmission, wherein the transmission comprises a first input shaft assembly 3, an intermediate shaft assembly 5, a second input shaft assembly 6 and a differential mechanism, the first input shaft assembly 3 comprises a first input shaft 3-3, the first input shaft 3-3 is a hollow shaft, the engine 1 and the second motor 4 are respectively positioned at two ends of the first input shaft 3-3, an output shaft of the engine 1 is fixedly connected with a motor shaft of the second motor 4, an output shaft of the engine 1 is connected with the first input shaft 3-3 through a clutch 2, a first gear input gear 3-1 and a second gear input gear 3-2 are arranged on the first input shaft 3-3, the intermediate shaft assembly 5 comprises an intermediate shaft 5-8, and a first gear output gear 5-2 is sleeved on the intermediate shaft 5-8 in an empty manner, A second gear synchronizer 5-3 is arranged between a second gear output gear 5-4, a first gear output gear 5-2 and the second gear output gear 5-4, the second gear synchronizer 5-3 is fixedly connected with an intermediate shaft 5-8, the first gear output gear 5-2 is meshed with a first gear input gear 3-1 to form a first gear pair, the second gear output gear 5-4 is meshed with a second gear input gear 3-2 to form a second gear pair, the intermediate shaft 5-8 is also provided with a first gear output gear 5-5 of a motor and a second gear output gear 5-7 of the motor, the second input shaft assembly 6 comprises a second input shaft 6-2, the second input shaft 6-2 is sleeved with a first gear input gear 6-1 of the motor and a second gear input gear 6-3 of the motor, a motor gear synchronizer 6-5 is arranged between a first-gear input gear 6-1 of the motor and a second-gear input gear 6-3 of the motor, the motor gear synchronizer 6-5 is fixedly connected with a second input shaft 6-2, the first-gear input gear 6-1 of the motor is meshed with a first-gear output gear 5-5 of the motor to form a first-gear pair of the motor, the second-gear input gear 6-3 of the motor is meshed with a second-gear output gear 5-7 of the motor to form a second-gear pair of the motor, a middle gear 6-4 of the motor is also arranged on the second input shaft 6-2, the middle gear 6-4 of the motor is meshed with a motor input gear 7-1 of the motor, the input gear 7-1 of the motor is fixedly arranged on a motor shaft of a first motor 7, and a normally meshed gear 5-1 is also, the constant mesh gear 5-1 meshes with the output gear 15. Other technical features of the present embodiment are the same as those of the first embodiment.
EXAMPLE III
The embodiment provides a hybrid vehicle which adopts the dual-motor hybrid driving system of the first embodiment or the second embodiment.
As shown in fig. 1, the working principle of the present invention is as follows:
in the embodiment, all gears on the transmission can be used for transmission of the first motor 7, the second motor 4 and the engine 1, and the gear selection function of the existing hybrid power system in three modes of a pure electric drive mode, a hybrid drive mode and a pure engine 1 is added through a synchronizer. When the transmission shifts gears, the first motor 7 transmits torque to the intermediate shaft 5-8, and the intermediate shaft 5-8 constant meshed gear 5-1 is output to a wheel end through the differential and the output gear 15, so that the phenomenon of torque interruption during shifting is prevented, and the shifting comfort is improved.
Pure electric mode (first gear) as shown in fig. 3:
the clutch is in a separation state, the steel sheets of the clutch outer hub 2-22 and the friction sheets of the clutch inner hub 2-13 are not combined, the first-gear synchronizer 5-3 is in a neutral state, the motor gear synchronizer 5-6 slides to the first-gear output gear 5-55 of the motor and is connected with the first-gear output gear 5-5 of the motor, at the moment, the intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-55 of the motor, the first motor 7 is started to input power to the motor input gear, and the motor input gear transmits the power to the first-gear input gear 3-1 of the motor, the first-gear output gear 5-5-intermediate shaft 5-8 of the motor, the constant mesh gear 5-1-differential and the output gear 15 through the intermediate gear of the motor.
Pure electric mode (two gear) as shown in fig. 4:
the clutch is in a separation state, a steel sheet of an outer hub 2-2 of the clutch and a friction sheet of an inner hub 2-1 of the clutch are not combined, a first gear synchronizer 5-3 is in a neutral gear state, a motor gear synchronizer 5-6 slides to a second gear output gear 5-7 of a motor and is connected with the second gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the second gear output gear 5-7 of the motor, a first motor 7 is started to input power to a motor input gear, and the motor input gear transmits the power to the second gear input gear 3-3 of the motor, the second gear output gear 5-7 of the motor, the intermediate shaft 5-8, a normally meshed gear 5-1-differential and an output gear 15 through a motor intermediate gear.
The clutch is in an engaging state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first-gear synchronizer 5-3 slides towards the first-gear output gear 5-2, the first-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected with the first-gear synchronizer 5-3 at the moment, the first motor 7 is closed, the engine 1 is started, the engine 1 transmits power to the clutch inner hub 2-1 and the clutch outer hub 2-2, the clutch outer hub 2-2 transmits power to the first input shaft 3-3, the first input shaft 3-3 is transmitted to a first-gear input gear 3-1, a first-gear output gear 5-2, an intermediate shaft 5-8, a constant mesh gear 5-1, a differential and an output gear 15;
The clutch is in an engaging state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the second-gear output gear 5-4, the second-gear output gear 5-4 and the first-gear synchronizer 5-3 are fixedly connected together at the moment, a first motor 7 is closed, an engine 1 is started, the engine 1 transmits power to the outer hub 2-2 of the clutch, the clutch outer hub 2-2 transmits power to the clutch inner hub 2-1, the first input shaft 3-3, the second gear input gear 3-3, the second gear output gear 5-4, the intermediate shaft 5-8, the constant mesh gear 5-1, the differential and the output gear 15;
hybrid mode as shown in FIG. 7 (Engine 1 first gear, Motor first gear)
The clutch is in an engagement state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first-gear synchronizer 5-3 slides towards the first-gear output gear 5-2, the second-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected with the second-gear synchronizer 5-3, the motor-gear synchronizer 5-6 slides towards the motor-gear output gear 5-5 and is engaged with the motor-gear output gear 5-5, the intermediate shaft 5-8 is fixedly connected with the motor-gear output gear 5-5, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the clutch outer hub 2-2-1-2-3-1-5-3-5-one-gear output gear 2-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, the first motor 7 transfers power to the motor input gear-motor first gear input gear 3-1-motor first gear output gear 5-5-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode as shown in FIG. 8 (Engine 1 second gear, motor first gear)
The clutch is in an engagement state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-4, a first-gear synchronizer 5-3 is engaged with a second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards a first-gear output gear 5-5 of the motor and is engaged with the first-gear output gear 5-5 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the clutch outer hub 2-2-clutch inner hub 2-1-first input shaft 3-3-two-gear input gear 3-two-gear output gear 5 4-two-gear synchronizer 5-3-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15, first motor 7 transfers power to motor input gear-motor first gear input gear 3-1-motor first gear output gear 5-5-intermediate shaft 5-8-constant mesh gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode as shown in FIG. 9 (first gear of engine 1, second gear of motor)
The clutch is in an engagement state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first-gear synchronizer 5-3 slides towards the first-gear output gear 5-2, the second-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected with the first-gear synchronizer 5-3, the motor-gear synchronizer 5-6 slides towards the motor-second-gear output gear 5-7 and is engaged with the motor-second-gear output gear 5-7, the intermediate shaft 5-8 is fixedly connected with the motor-second-gear output gear 5-7, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the clutch outer hub 2-2-clutch inner hub 2-1-first input shaft 3-3-first-gear input gear 3-1-first-gear output gear 5 2-first and second gear synchronizer 5-3-intermediate shaft 5-8-normally meshed gear 5-1-differential and output gear 15, first motor 7 transfers power to motor input gear-motor second gear input gear 3-3-motor second gear output gear 5-7-motor gear synchronizer 5-6-intermediate shaft 5-8-normally meshed gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Hybrid mode as shown in FIG. 10 (Engine 1 second gear, motor second gear)
The clutch is in an engaged state, a steel sheet of the clutch outer hub 2-2 is engaged with a friction sheet of the clutch inner hub 2-1, the first and second synchronizers 5-3 slide towards the second output gear 5-4, the first and second synchronizers 5-3 are engaged with the second output gear 5-4, the second output gear 5-4 is fixedly connected with the first and second synchronizers 5-3, the motor gear synchronizers 5-6 slide towards the second output gear 5-7 of the motor and are engaged with the second output gear 5-7 of the motor, the intermediate shaft 5-8 is fixedly connected with the second output gear 5-7 of the motor, the engine 1 is started, the first motor 7 is started, the engine 1 transmits power to the clutch outer hub 2-2-clutch inner hub 2-1-first input shaft 3-3-two input gear 3-3-two output gear 5 4-first and second gear synchronizer 5-3-intermediate shaft 5-8-normally meshed gear 5-1-differential and output gear 15, first motor 7 transfers power to motor input gear-motor second gear input gear 3-3-motor second gear output gear 5-7-motor gear synchronizer 5-6-intermediate shaft 5-8-normally meshed gear 5-1-differential and output gear 15. The engine 1 and the motor transmit power simultaneously.
Power recovery mode
Wherein the clutch is disconnected, the engine 1 and the second motor 4 stop running, the motor gear synchronizer 5-6 on the intermediate shaft 5-8 is connected with the motor first gear output gear 5-5 or connected with the motor second gear output gear 5-7, the synchronizer on the transmission is disconnected with the gear of the corresponding gear, the first motor 7 is in a running state, and in the process of braking or sliding, the differential and the output gear 15 enable power to pass through the intermediate shaft 5-8, the motor gear synchronizer 5-6, the motor first gear output gear 5-5 or the motor second gear output gear 5-7, the motor first gear input gear 3-1 or the motor second gear input gear 3-3, the motor intermediate gear, the motor input gear and the first motor 7, the first motor 7 is caused to charge the battery.
Wherein the clutch is jointed, the steel sheet of the clutch outer hub 2-2 is jointed with the friction sheet of the clutch inner hub 2-1, the first and second gear synchronizers 5-3 slide towards the direction of the first gear output gear 5-2, the first and second gear synchronizers 5-3 are jointed with the first gear output gear 5-2, at the moment, the first gear output gear 5-2 is fixedly connected with the first and second gear synchronizers 5-3, when braking, the power passes through a differential and an output gear 15, a normally meshed gear 5-1, an intermediate shaft 5-8, a two-gear synchronizer 5-3, a first-gear output gear 5-2, a first-gear input gear 3-1, a first input shaft 3-3, a clutch inner hub 2-1, a clutch outer hub 2-2 and a second motor 4, so that the second motor 4 charges a battery.
Wherein the clutch is jointed, the steel sheet of the clutch outer hub 2-2 is jointed with the friction sheet of the clutch inner hub 2-1, the first and second synchronizers 5-3 slide towards the direction of the second output gear 5-4, the first and second synchronizers 5-3 are jointed with the second output gear 5-4, the second output gear 5-4 is fixedly connected with the first and second synchronizers 5-3, when braking, the power passes through a differential and an output gear 15, a normally meshed gear 5-1, an intermediate shaft 5-8, a first-second gear synchronizer 5-3, a second-second gear output gear 5-4, a second-second gear input gear 3-3, a first input shaft 3-3, a clutch inner hub 2-1, a clutch outer hub 2-2 and a second motor 4, so that the second motor 4 charges a battery.
Charging mode
In the hybrid power mode and the pure engine 1 mode, the engine 1 and the second motor 4 are directly and fixedly connected together, and as long as the engine 1 is started to operate, power is directly transmitted to the second motor 4, so that the second motor 4 charges the battery.
The clutch is in an engaging state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-2 or a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2 or the second-gear output gear 5-4, the first-gear output gear 5-2 or the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, the engine 1 is started, the engine 1 transmits power to the outer hub 2-2 of, the clutch outer hub 2-2 transmits power to the clutch outer hub 2-2, the clutch outer hub 2-2 is fixedly connected with a first input shaft 3-3, the first input shaft 3-3 transmits power to a first gear input gear 3-1 or a second gear input gear 3-3, a first gear output gear 5-2 or a second gear output gear 5-4, an intermediate shaft 5-8, a motor gear synchronizer 5-6, a motor first gear output gear 5-5 or a motor second gear output gear 5-7, a motor first gear input gear 3-1 or a motor second gear input gear 3-3, a motor intermediate gear, a motor input gear and a first motor 7, and the first motor 7 charges a battery.
The second electric machine 4 starts the engine 1 mode:
the second electric machine 4 is operated, the clutch is disconnected, and the second electric machine 4 transmits power to the engine 1 for starting the engine 1.
The first electric machine 7 starts the engine 1 mode:
the clutch is in an engaging state, a steel sheet of an outer hub 2-2 of the clutch is engaged with a friction sheet of an inner hub 2-1 of the clutch, a first-gear synchronizer 5-3 slides towards a first-gear output gear 5-2 or a second-gear output gear 5-4, the first-gear synchronizer 5-3 is engaged with the first-gear output gear 5-2 or the second-gear output gear 5-4, the first-gear output gear 5-2 or the second-gear output gear 5-4 is fixedly connected with the first-gear synchronizer 5-3, a motor-gear synchronizer 5-6 slides towards a first-gear output gear 5-5 of the motor or a second-gear output gear 5-7 of the motor, an intermediate shaft 5-8 is fixedly connected with the first-gear output gear 5-5 of the motor or the second-gear output gear 5-7 of the motor, the first motor 7 is started, and the first motor 7 transmits power to the input gear of the motor, the intermediate gear of The engine 1 is started by the output gear 5-5 or the motor two-gear output gear 5-7-the intermediate shaft 5-8-the first-gear synchronizer 5-3-the first-gear output gear 5-2 or the two-gear output gear 5-4-the first input shaft 3-3-the clutch inner hub 2-1-the clutch outer hub 2-2, and the power is transmitted to the engine 1.
In the embodiment, when the first-gear synchronizer 5-3 acts on the first-gear output gear 5-2, the first-gear output gear 5-2 is fixedly connected to the intermediate shaft 5-8, and the first-gear output gear 5-2 and the first-gear input gear 3-1 are always in a meshing state, so that a gear pair 1 is formed;
in the embodiment, when the first-gear synchronizer 5-3 acts on the second-gear output gear 5-4, the second-gear output gear 5-4 is fixedly connected to the intermediate shaft 5-8, and the second-gear output gear 5-4 and the second-gear input gear 3-3 are always in a meshing state to form a 2-gear pair;
in the embodiment, when the motor gear synchronizer 5-6 acts on the motor first gear output gear 5-5, the motor first gear output gear 5-5 is fixedly connected to the intermediate shaft 5-8, the motor first gear output gear 5-5 and the motor first gear input gear 3-1 are always in a meshed state, and a motor 1 gear pair is formed;
in the embodiment, when the motor gear synchronizer 5-6 acts on the motor secondary output gear 5-75-4, the motor secondary output gear 5-7 is fixedly connected to the intermediate shaft 5-8, the motor secondary output gear 5-7 and the motor secondary input gear 3-3 are always in a meshed state, and a motor 2 gear pair is formed;
in the present embodiment, the reverse gear function is realized by the reverse rotation of the first electric motor 7;
in the present embodiment, during power generation or energy recovery, if the rotation speed of the first electric machine 7 exceeds the maximum design limit rotation speed, the electric machine gear synchronizer 5-6 is disconnected, and the power transmission route of the first electric machine 7 is cut off to protect the first electric machine 7.
The utility model discloses a bi-motor hybrid driving system includes two motors, and wherein second motor and engine lug connection can directly be used for starting the engine, and the engine also can directly charge to the second motor, because engine and second motor lug connection do not have the intermediate gear transmission, consequently transmission efficiency and generating efficiency are all higher. Carry out power benefit through first motor and turn round in the process of shifting gears, the process of shifting gears power can not be interrupted, and drivability is superior. First motor output has two fender position, and the high-efficient interval of utilization motor that can be better reaches higher pure electric motor speed and stronger pure electric drive power to the various different operating modes of better adaptation.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and it is obvious that those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A dual-motor hybrid drive system, characterized in that: the transmission comprises an engine (1), a first motor (7), a second motor (4) and a transmission, wherein the transmission comprises a first input shaft assembly (3), a middle shaft assembly (5) and a second input shaft assembly (6), the first input shaft assembly (3) comprises a first input shaft (3-3), the first input shaft (3-3) is a hollow shaft, the engine (1) and the second motor (4) are respectively positioned at two ends of the first input shaft (3-3), an output shaft of the engine (1) is fixedly connected with a motor shaft of the second motor (4), an output shaft of the engine (1) is connected with the first input shaft (3-3) through a clutch (2), a first gear input gear (3-1) and a second gear input gear (3-2) are arranged on the first input shaft (3-3), the middle shaft assembly (5) comprises a middle shaft (5-8), a first-gear output gear (5-2), a second-gear output gear (5-4), a first-gear output gear (5-5) of a motor and a second-gear output gear (5-7) of the motor are sleeved on the middle shaft (5-8), the first-gear output gear (5-2) is meshed with a first-gear input gear (3-1) to form a first-gear pair, the second-gear output gear (5-4) is meshed with a second-gear input gear (3-2) to form a second-gear pair, a first-gear synchronizer (5-3) and a second-gear synchronizer (5-4) are arranged between the first-gear output gear (5-2) and the second-gear output gear (5-4), the first-gear synchronizer (5-3) is fixedly connected with the middle shaft (5-8), and a motor gear is arranged between the first-gear output gear (5-5 The synchronous device comprises a synchronizer (5-6), a motor gear synchronizer (5-6) is fixedly connected with an intermediate shaft (5-8), the second input shaft assembly (6) comprises a second input shaft (6-2), a first motor gear input gear (6-1), a second motor gear input gear (6-3) and a motor intermediate gear (6-4) are arranged on the second input shaft (6-2), the first motor gear input gear (6-1) is meshed with the first motor gear output gear (5-5) to form a first motor gear pair, the second motor gear input gear (6-3) is meshed with the second motor gear output gear (5-7) to form a second motor gear pair, the motor intermediate gear (6-4) is meshed with the motor input gear (7-1), and the motor input gear (7-1) is fixedly arranged on a motor shaft of a first motor (7), a constant mesh gear (5-1) is arranged on the intermediate shaft (5-8), the constant mesh gear (5-1) is meshed with an input gear of a differential mechanism or the constant mesh gear (5-1) passes through
The output gear (15) meshes with an input gear of the differential.
2. A dual-motor hybrid drive system, characterized in that: the transmission comprises an engine (1), a first motor (7), a second motor (4) and a transmission, wherein the transmission comprises a first input shaft assembly (3), a middle shaft assembly (5), a second input shaft assembly (6) and a differential mechanism, the first input shaft assembly (3) comprises a first input shaft (3-3), the first input shaft (3-3) is a hollow shaft, the engine (1) and the second motor (4) are respectively positioned at two ends of the first input shaft (3-3), an output shaft of the engine (1) is fixedly connected with a motor shaft of the second motor (4), an output shaft of the engine (1) is connected with the first input shaft (3-3) through a clutch (2), a first gear input gear (3-1) and a second gear input gear (3-2) are arranged on the first input shaft (3-3), the middle shaft assembly (5) comprises a middle shaft (5-8), a first-gear output gear (5-2) and a second-gear output gear (5-4) are sleeved on the middle shaft (5-8) in a hollow mode, a first-gear synchronizer (5-3) is arranged between the first-gear output gear (5-2) and the second-gear output gear (5-4), the first-gear synchronizer (5-3) is fixedly connected with the middle shaft (5-8), the first-gear output gear (5-2) is meshed with the first-gear input gear (3-1) to form a first-gear pair, the second-gear output gear (5-4) is meshed with the second-gear input gear (3-2) to form a second-gear pair, the middle shaft (5-8) is further provided with a first-gear motor output gear (5-5) and a second-gear motor output gear (5-7), the second input shaft assembly (6) comprises a second input shaft (6-2), a first motor gear input gear (6-1) and a second motor gear input gear (6-3) are sleeved on the second input shaft (6-2) in a hollow mode, a first motor gear synchronizer (6-5) is arranged between the first motor gear input gear (6-1) and the second motor gear input gear (6-3), the first motor gear synchronizer (6-5) is fixedly connected with the second input shaft (6-2), the first motor gear input gear (6-1) is meshed with the first motor gear output gear (5-5) to form a first motor gear pair, the second motor gear input gear (6-3) is meshed with the second motor gear output gear (5-7) to form a second motor gear pair, and a middle motor gear (6-4) is further arranged on the second input shaft (6-2), the motor intermediate gear (6-4) is meshed with a motor input gear (7-1), the motor input gear (7-1) is fixedly arranged on a motor shaft of the first motor (7), a normally meshed gear (5-1) is further arranged on the intermediate shaft (5-8), and the normally meshed gear (5-1) is meshed with an input gear of the differential or the normally meshed gear (5-1) is meshed with the input gear of the differential through an output gear (15).
3. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the clutch (2) comprises a clutch outer hub (2-2) and a clutch inner hub (2-1), the clutch outer hub (2-2) of the clutch (2) is fixedly connected with an output shaft of the engine (1), and the clutch inner hub (2-1) of the clutch (2) is fixedly connected with the first input shaft (3-3).
4. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the two ends of the intermediate shafts (5-8) are supported in a shell of the transmission through bearings.
5. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: both ends of the second input shaft (6-2) are supported in a housing of the transmission through bearings.
6. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the output gear (15) is fixed on the output shaft; the output shaft is supported within a housing of the transmission by bearings.
7. The dual-motor hybrid drive system according to claim 1 or 2, characterized in that: the axial lead of the output shaft of the engine (1), the axial lead of the motor shaft of the second motor (4) and the axial lead of the first input shaft (3-3) are positioned on the same straight line.
8. A hybrid vehicle characterized in that: a two-motor hybrid drive system as claimed in claim 1 or 2 is employed.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435106A (en) * | 2022-02-24 | 2022-05-06 | 北方汤臣传动科技有限公司 | Electric drive axle structure for hybrid new energy automobile |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114435106A (en) * | 2022-02-24 | 2022-05-06 | 北方汤臣传动科技有限公司 | Electric drive axle structure for hybrid new energy automobile |
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