CN215360899U - Dual-motor hybrid power driving system - Google Patents
Dual-motor hybrid power driving system Download PDFInfo
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- CN215360899U CN215360899U CN202120579433.2U CN202120579433U CN215360899U CN 215360899 U CN215360899 U CN 215360899U CN 202120579433 U CN202120579433 U CN 202120579433U CN 215360899 U CN215360899 U CN 215360899U
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Abstract
A double-motor hybrid power driving system comprises an engine, a first motor, a second motor and a differential mechanism, wherein a hollow shaft is sleeved on an input shaft and is circumferentially fixed with a third input gear, a first gear driving gear, a second gear driving gear are in clearance fit with the input shaft, an output gear is circumferentially fixed on an intermediate shaft, a first gear driven gear meshed with the first gear driving gear and a second gear driven gear meshed with the second gear driving gear, a synchronizer is arranged between the first gear driving gear and the second gear driving gear, the engine is respectively connected with the input shaft and the hollow shaft through a clutch, a first input gear is circumferentially fixed on a motor shaft of the first motor, a first transmission gear and a second transmission gear are circumferentially fixed on a transmission shaft, the first input gear is meshed with the first transmission gear, the output gear and the second transmission gear are jointly meshed with a differential gear of the differential mechanism, and a second input gear is circumferentially fixed on a motor shaft of the second motor, the second input gear performs power transmission via the third input gear.
Description
Technical Field
The utility model relates to the technical field of automobile transmission, in particular to a dual-motor hybrid power driving system.
Background
The traditional fuel oil automobile usually uses petroleum as an energy source, and with the shortage of resources and environmental pollution caused by automobile exhaust emission, the national restriction on automobile exhaust emission is more and more strict, so that the research and development directions of many automobile manufacturers gradually tend to new energy automobiles with low emission and low oil consumption. However, a pure electric vehicle in a new energy vehicle has the problems that the cost of the whole vehicle is high, the charging time is long, the battery life is unstable, and the like, which are difficult to solve in a short period, and a hybrid electric vehicle is also used as a new energy vehicle and has the advantages of both a traditional fuel vehicle and a pure electric vehicle. At present, what current hybrid vehicle adopted usually is an engine and a motor, keeps off the position and has generally 5 or more, causes the redundant problem of fender position easily, and the cost is higher, whole car arranges the difficulty, and the limitation of popularization is great, and in addition, some hybrid vehicles can not advance the engine of starting, and the effect of economizing on fuel is relatively poor, perhaps power interruption when shifting gears, and it is not good to drive experience.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provides a dual-motor hybrid power driving system which can reduce oil consumption and pollutant discharge, ensure power continuity during gear shifting, improve gear shifting comfort, start an engine during the advancing of an automobile and improve the power performance and the driving performance of the automobile.
The technical scheme of the utility model is as follows: a double-motor hybrid power driving system comprises an engine, a first motor, a second motor and a differential mechanism, wherein the first motor and the second motor are arranged on the same side, the engine is arranged opposite to the first motor and the second motor, an input shaft, a hollow shaft and a middle shaft are arranged between the first motor and the second motor, the hollow shaft is freely sleeved on the input shaft and is positioned on the same axial lead as the input shaft, a third input gear is circumferentially fixed on the hollow shaft, a first gear driving gear and a second gear driving gear are sequentially matched on the input shaft in a clearance mode, a first gear driven gear, a second gear driven gear and an output gear are sequentially circumferentially fixed on the middle 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, a synchronizer is arranged between the first gear driving gear and the second gear driving gear, and the synchronizer is circumferentially fixed on the input shaft, the engine is respectively connected with the input shaft and the hollow shaft through the clutch, a first input gear is circumferentially fixed on a motor shaft of the first motor, a first transmission gear and a second transmission gear are circumferentially fixed on a transmission shaft, the first input gear is meshed with the first transmission gear, the output gear and the second transmission gear are jointly meshed with a differential gear of a differential, a second input gear is circumferentially fixed on a motor shaft of the second motor, and a third input gear of the second input gear is used for power transmission.
And a driving disc of the clutch is respectively connected and fixed with the engine rotating shaft and the hollow shaft, and a driven disc of the clutch is connected and fixed with the input shaft.
And the opposite ends of the first gear driving gear and the second gear driving gear are respectively provided with a joint tooth, and the gear ring of the synchronizer is respectively corresponding to the joint teeth of the first gear driving gear and the second gear driving gear.
The clutch adopts a dry clutch or a wet clutch.
Adopt above-mentioned technical scheme: the device comprises an engine, a first motor, a second motor and a differential mechanism, wherein the first motor and the second motor are arranged on the same side, the engine is arranged opposite to the first motor and the second motor, an input shaft, a hollow shaft and an intermediate shaft are arranged between the first motor and the second motor, the hollow shaft is freely sleeved on the input shaft and is positioned on the same axial lead with the input shaft, a third input gear is circumferentially fixed on the hollow shaft, a first gear driving gear and a second gear driving gear are sequentially arranged on the input shaft in a clearance fit mode, a first gear driven gear, a second gear driven gear and an output gear are sequentially and 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, a synchronizer is arranged between the first gear driving gear and the second gear driving gear, and the synchronizer is circumferentially fixed on the input shaft, the engine is respectively connected with the input shaft and the hollow shaft through the clutch, a first input gear is circumferentially fixed on a motor shaft of the first motor, a first transmission gear and a second transmission gear are circumferentially fixed on a transmission shaft, the first input gear is meshed with the first transmission gear, the output gear and the second transmission gear are jointly meshed with a differential gear of the differential, a second input gear is circumferentially fixed on a motor shaft of the second motor, and the second input gear carries out power transmission through a third input gear. This actuating system can carry out power compensation through first motor at the in-process of shifting to guarantee that power does not break off, promote the travelling comfort of shifting, also can carry out power assistance through first motor at the acceleration in-process moreover, improve the dynamic property of car, can also start the engine simultaneously between marcing, make the car have good dynamic property and driveability. In addition, this actuating system's first motor and second motor lie in the both ends of system with one side, and the engine sets up with first motor, second motor relatively, make each gear train lie in between two motors, make the structure compacter, can reduce whole actuating system's arrangement space to more tend to miniaturized design, can adapt to the engine cabin of more motorcycle types and arrange the requirement. The driving system also has multiple efficient driving modes such as pure electric driving, pure engine, hybrid driving, energy recovery and the like, so that the engine is kept to operate in a high-efficiency interval, the driving system has good fuel economy, and the aims of reducing oil consumption and pollutant emission are fulfilled.
The driving disk of the clutch is respectively connected and fixed with the rotating shaft and the hollow shaft of the engine, and the driven disk of the clutch is connected and fixed with the input shaft, so that the second motor can be rotated to charge the battery as long as the engine is in a running state no matter whether the clutch is connected or not.
And the opposite ends of the first gear driving gear and the second gear driving gear are respectively provided with a joint tooth, and the gear rings of the synchronizer respectively correspond to the joint teeth of the first gear driving gear and the second gear driving gear, so that the power transmission of the input shaft and the intermediate shaft is realized.
The utility model is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
Referring to fig. 1, a dual-motor hybrid power driving system includes an engine 1, a first motor 3, a second motor 4, and a differential 15, where the first motor 3 and the second motor 4 may share a same battery set, or may use different battery sets, respectively, and the engine 1 may be a three-cylinder or four-cylinder engine, or other engines with similar functions. The first motor 3 and the second motor 4 are arranged on the same side, the engine 1 is arranged opposite to the first motor 3 and the second motor 4, an input shaft 5, a hollow shaft 6 and an intermediate shaft 7 are arranged between the first motor 3 and the second motor 4, namely, the first motor 3 and the second motor 4 are arranged at two ends of the same side of the transmission, and gear sets are arranged between the two motors, so that the structure of the whole driving system is more compact. The input shaft 5, the hollow shaft 6 and the intermediate shaft 7 are supported by the transmission housing through bearings. The hollow shaft 6 is freely sleeved on the input shaft 5 and is located on the same axial lead line with the input shaft 5, a third input gear 14 is circumferentially fixed on the hollow shaft 6, a first gear driving gear 10 and a second gear driving gear 9 are sequentially in clearance fit on the input shaft 5, a first gear driven gear 12, a second gear driven gear 11 and an output gear 17 are sequentially circumferentially fixed on the intermediate shaft 7, the first gear driving gear 10 is meshed with the first gear driven gear 12 to form a first gear pair, and the second gear driving gear 9 is meshed with the second gear driven gear 11 to form a second gear pair. A synchronizer 13 is arranged between the first gear driving gear 10 and the second gear driving gear 9, and the synchronizer 13 is circumferentially fixed on the input shaft 5 at the moment. The opposite ends of the first gear driving gear 10 and the second gear driving gear 9 are respectively provided with a joint tooth, and the gear ring of the synchronizer 13 is respectively corresponding to the joint teeth of the first gear driving gear 10 and the second gear driving gear 9, so that the power transmission of the input shaft 5 and the intermediate shaft 7 is realized.
Further, the synchronizer 13 may be provided between the first stage driven gear 12 and the second stage driven gear 11, in which case the synchronizer 13 is circumferentially fixed to the intermediate shaft 7, the first stage driven gear 12 and the second stage driven gear 11 are intermittently engaged with the intermediate shaft 7, and the first stage drive gear 10 and the second stage drive gear 9 are sequentially circumferentially fixed to the input shaft 5.
The engine 1 is respectively connected with the input shaft 5 and the hollow shaft 6 through the clutch 2, the driving disc of the clutch 2 is respectively connected and fixed with the rotating shaft of the engine 1 and the hollow shaft 6, and the driven disc of the clutch 2 is connected and fixed with the input shaft 5, namely, the second motor 4 can be rotated to charge the battery as long as the engine 1 is in a running state no matter whether the clutch 2 is jointed, so that the energy recovery efficiency of the driving system is improved. The clutch 2 may be a dry clutch or a wet clutch. The motor shaft of the first motor 3 axially extends to be supported on a transmission shell through a bearing, a first input gear 19 is circumferentially fixed on the motor shaft of the first motor 3, a first transmission gear 20 and a second transmission gear 21 are circumferentially fixed on the transmission shaft 8, the first input gear 19 is meshed with the first transmission gear 20, the output gear 17 and the second transmission gear 21 are meshed with a differential gear 18 of a differential 15 together, the motor shaft of the second motor 4 axially extends to be supported on the transmission shell through the bearing, a second input gear 16 is circumferentially fixed on the motor shaft of the second motor 4, and the second input gear 16 carries out power transmission through a third input gear 14.
During operation, under the control of the control module, the dual-motor hybrid power driving system has the following driving modes by taking the synchronizer 13 arranged between the first-gear driving gear 10 and the second-gear driving gear 9 as an example:
1. engine only mode
The first gear drive, the clutch 2 is engaged, the synchronizer 13 is engaged with the first gear driving gear 10, the engine 1 transmits torque to the input shaft 5, the input shaft 5 transmits the torque to the intermediate shaft 7 through the first gear driving gear 10 and the first gear driven gear 12, then the intermediate shaft 7 transmits the torque to the differential 15 through the output gear 17 and the differential gear 18, and finally the differential 15 outputs power. Meanwhile, the engine 1 transmits torque to the hollow shaft 6, and then the hollow shaft 6 transmits the torque to the second motor 4 through the third input gear 14 and the second input gear 16, so that the second motor rotates to charge the battery.
The second gear drives, the clutch 2 is engaged, the synchronizer 13 is engaged with the second gear driving gear 9, the engine 1 transmits torque to the input shaft 5, the input shaft 5 transmits the torque to the intermediate shaft 7 through the second gear driving gear 9 and the second gear driven gear 11, then the intermediate shaft 7 transmits the torque to the differential 15 through the output gear 17 and the differential gear 18, and finally the differential 15 outputs power. Meanwhile, the engine 1 transmits torque to the hollow shaft 6, and then the hollow shaft 6 transmits the torque to the second motor 4 through the third input gear 14 and the second input gear 16, so that the second motor rotates to charge the battery.
2. Electric only mode
The engine 1 and the second motor 4 stop running, the first motor 3 runs to transmit the torque to the transmission shaft 8 through the first input gear 19 and the first transmission gear 20, and then the transmission shaft 8 transmits the torque to the differential 15 through the second transmission gear 21 and the differential gear 18, so that the differential 15 outputs power.
3. Hybrid drive mode
The first gear drive is performed, the clutch 2 is connected, the synchronizer 13 is connected with the first gear driving gear 10, the engine 1 transmits torque to the input shaft 5, the input shaft 5 transmits the torque to the intermediate shaft 7 through the first gear driving gear 10 and the first gear driven gear 12, and then the intermediate shaft 7 transmits the torque to the differential 15 through the output gear 17 and the differential gear 18; meanwhile, the first motor 3 operates to transmit torque to the transmission shaft 8 through the first input gear 19 and the first transmission gear 20, then the transmission shaft 8 transmits the torque to the differential 15 through the second transmission gear 21 and the differential gear 18, so that the torque of the engine 1 and the torque of the first motor 3 are combined with the differential 15, and then the differential 15 outputs power, thereby realizing first-gear hybrid drive. When the engine 1 is operated, torque is transmitted to the hollow shaft 6, and then the hollow shaft 6 transmits the torque to the second motor 4 via the third input gear 14 and the second input gear 16, so that the second motor 4 is rotated to charge the battery.
The second gear is driven, the clutch 2 is jointed, the synchronizer 13 is jointed with the second gear driving gear 9, the engine 1 transmits torque to the input shaft 5, the input shaft 5 transmits the torque to the intermediate shaft 7 through the second gear driving gear 9 and the second gear driven gear 11, and then the intermediate shaft 7 transmits the torque to the differential 15 through the output gear 17 and the differential gear 18; meanwhile, the engine 1 and the second motor 4 stop operating, the first motor 3 operates to transmit torque to the transmission shaft 8 through the first input gear 19 and the first transmission gear 20, then the transmission shaft 8 transmits torque to the differential 15 through the second transmission gear 21 and the differential gear 18, so that the torque of the engine 1 and the torque of the first motor 3 are combined with the differential 15, and finally the differential 15 outputs power. When the engine 1 is operated, torque is transmitted to the hollow shaft 6, and then the hollow shaft 6 transmits the torque to the second motor 4 via the third input gear 14 and the second input gear 16, so that the second motor 4 is rotated to charge the battery.
In addition, the first motor 1 can be independently used as the power for driving the whole vehicle, at the moment, the clutch 2 is disconnected, the engine 1 operates to transmit the torque to the hollow shaft 6, the hollow shaft 6 transmits the torque to the second motor 4 through the third input gear 14 and the second input gear 16, the second motor 4 rotates to charge the battery, and then the first motor 1 is powered by the battery, so that the range extending mode under hybrid driving is realized.
4. Energy recovery
When the clutch 2 is engaged, the engine 1 is in a running state, the first motor 3 and the second motor 4 are in a running state, the engine 1 transmits torque to the hollow shaft 6, the hollow shaft 6 transmits the torque to the second motor 4 through the third input gear 14 and the second input gear 16, so that the second motor 4 rotates to charge the battery, meanwhile, the power of the differential 15 is transmitted to the first motor 3 through the differential gear 18, the second transmission gear 21, the transmission shaft 8, the first transmission gear 20 and the first input gear 19, so that the first motor 3 rotates to charge the battery; when the clutch 2 is disconnected, the engine 1 and the second motor 4 both stop operating, and the first motor 3 is in an operating state, at this time, the power of the differential 15 is transmitted to the first motor 3 through the differential gear 18, the second transmission gear 21, the transmission shaft 8, the first transmission gear 20 and the first input gear 19, so that the first motor 3 rotates to charge the battery.
When the whole vehicle is in idling, the clutch 2 is disconnected, the engine 1 is in an idling state, the first motor 1 stops running, the second motor is in a running state, the engine 1 transmits torque to the hollow shaft 6, the hollow shaft 6 transmits the torque to the second motor 4 through the third input gear 14 and the second input gear 16, and the second motor 4 rotates to charge the battery.
5. Starting an engine
The clutch 2 is disconnected, the first motor 3 stops running, the second motor 4 transmits torque to the hollow shaft 6 through the second input gear 16 and the third input gear 14, and the rotating shafts of the hollow shaft 6 and the engine 1 are connected with the driving disc of the clutch 2, so that the torque of the hollow shaft 6 can be transmitted to the engine 1 through the clutch 2, and the purpose of starting the engine 1 is achieved.
6. Dynamic compensation
During gear shifting, the first motor 3 transmits torque to the transmission shaft 8 through the first input gear 19 and the first transmission gear 20, and then the transmission shaft 8 transmits the torque to the differential 15 through the second transmission gear 21 and the differential gear 18 to drive the differential 15 to realize power compensation.
This actuating system sets up two fender positions and drives, can satisfy the many gears demand under the different operating modes of vehicle, can avoid keeping off the redundant problem of position again, the simplified system, and this actuating system is at the in-process of shifting, can carry out power compensation through first motor 3, thereby guarantee that power does not break off, improve the travelling comfort of shifting, and also can carry out power assistance through first motor 3 at the in-process with higher speed, improve the dynamic property of car, simultaneously can also start engine 1 between marcing, make the car have good dynamic property and driveability. In addition, the first motor 3 and the second motor 4 of the driving system are positioned at two ends of the same side of the system, and the engine 1 is arranged opposite to the first motor 3 and the second motor 4, so that each gear set is positioned between the two motors, the structure is more compact, the arrangement space of the whole driving system can be reduced, the miniaturization design is more tended, and the engine cabin arrangement requirement of more vehicle types can be met. The driving system also has multiple efficient driving modes such as pure electric driving, pure engine, hybrid driving, energy recovery and the like, so that the engine is kept to operate in a high-efficiency interval, the driving system has good fuel economy, and the aims of reducing oil consumption and pollutant emission are fulfilled.
Claims (4)
1. The utility model provides a bi-motor hybrid drive system, includes engine (1), first motor (3), second motor (4), differential mechanism (15), its characterized in that: the first motor (3) and the second motor (4) are arranged on the same side, the engine (1) is arranged opposite to the first motor (3) and the second motor (4), an input shaft (5), a hollow shaft (6) and an intermediate shaft (7) are arranged between the first motor (3) and the second motor (4), the hollow shaft (6) is sleeved on the input shaft (5) in an empty way and is positioned on the same axial lead with the input shaft (5), a third input gear (14) is circumferentially fixed on the hollow shaft (6), a first gear driving gear (10) and a second gear driving gear (9) are sequentially matched on the input shaft (5) in a clearance way, a first gear driven gear (12), a second gear driven gear (11) and an output gear (17) are sequentially circumferentially fixed on the intermediate shaft (7), the first gear driving gear (10) is meshed with the first gear driven gear (12), and the second gear driving gear (9) is meshed with the second gear driven gear (11), a synchronizer (13) is arranged between the first gear driving gear (10) and the second gear driving gear (9), the synchronizer (13) is circumferentially fixed on the input shaft (5), the engine (1) is respectively connected with the input shaft (5) and the hollow shaft (6) through the clutch (2), a first input gear (19) is circumferentially fixed on a motor shaft of the first motor (3), a first transmission gear (20) and a second transmission gear (21) are circumferentially fixed on a transmission shaft (8), the first input gear (19) is meshed with a first transmission gear (20), the output gear (17) and a second transmission gear (21) are meshed with a differential gear (18) of a differential (), a second input gear (16) is circumferentially fixed on a motor shaft of the second motor (4), the second input gear (16) is in power transmission with the third input gear (14).
2. The dual-motor hybrid drive system of claim 1, wherein: and a driving disc of the clutch (2) is respectively connected and fixed with a rotating shaft and a hollow shaft (6) of the engine (1), and a driven disc of the clutch (2) is connected and fixed with the input shaft (5).
3. The dual-motor hybrid drive system of claim 1, wherein: the opposite ends of the first gear driving gear (10) and the second gear driving gear (9) are respectively provided with a joint tooth, and the gear ring of the synchronizer (13) is respectively corresponding to the joint teeth of the first gear driving gear (10) and the second gear driving gear (9).
4. The dual-motor hybrid drive system of claim 1, wherein: the clutch (2) adopts a dry clutch or a wet clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579433.2U CN215360899U (en) | 2021-03-22 | 2021-03-22 | Dual-motor hybrid power driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120579433.2U CN215360899U (en) | 2021-03-22 | 2021-03-22 | Dual-motor hybrid power driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215360899U true CN215360899U (en) | 2021-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120579433.2U Active CN215360899U (en) | 2021-03-22 | 2021-03-22 | Dual-motor hybrid power driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215360899U (en) |
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2021
- 2021-03-22 CN CN202120579433.2U patent/CN215360899U/en active Active
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