CN111219483A - Hybrid electric vehicle and transmission system thereof - Google Patents
Hybrid electric vehicle and transmission system thereof Download PDFInfo
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- CN111219483A CN111219483A CN201811409371.XA CN201811409371A CN111219483A CN 111219483 A CN111219483 A CN 111219483A CN 201811409371 A CN201811409371 A CN 201811409371A CN 111219483 A CN111219483 A CN 111219483A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/32—Electric motors actuators or related electrical control means therefor
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Abstract
The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid transmission system, which comprises a storage battery, a voltage converter, a first driving motor, a second driving motor, an engine, a clutch assembly, a first input shaft assembly, a second input shaft assembly, a first output shaft assembly, a second output shaft assembly and a speed reducer assembly, wherein the voltage converter is connected with the first driving motor and the second driving motor; the first driving motor comprises a first rotor and a first stator, the first rotor is fixedly connected with an output shaft of the engine and is in transmission connection with the clutch assembly, and the first stator is electrically connected with the storage battery through a voltage converter; the second driving motor comprises a second rotor and a second stator, and the second stator is electrically connected with the storage battery through a voltage converter; the hybrid electric vehicle comprises the transmission system.
Description
Technical Field
The invention relates to the technical field of hybrid electric vehicles, in particular to a hybrid electric vehicle and a transmission system thereof.
Background
The characteristics of energy conservation, low emission and the like of hybrid vehicles cause great attention in the automobile industry and become a key point for automobile research and development. The hybrid power device not only plays the advantages of long continuous working time and good dynamic property of the engine, but also plays the advantages of no pollution and low noise of the motor, the two devices ' fight ' side by side ' makes up for the deficiency, the thermal efficiency of the automobile can be improved by more than 10%, and the exhaust emission can be improved by more than 30%.
The BSG (Belt drive Starter Generator mild hybrid technology) widely applied at present is different from the electric automobile technology, the BSG only optimizes the working condition of the traditional gasoline and diesel engine, and improves the fuel efficiency under the conditions of idling, starting and the like, so the fuel saving effect is only 5%, and the BSG technology is not as good as the fuel cell and pure electric technology no matter the energy saving and emission reduction effect or the advanced degree, and can not meet the requirements gradually along with the increasingly severe emission standard. In addition, the speed changing system in the prior art has the disadvantages of heavy weight, large size, difficult arrangement and poor power transmission efficiency.
Disclosure of Invention
The invention aims to provide a hybrid electric vehicle and a transmission system thereof, wherein the hybrid electric vehicle is used for plug-in hybrid power and self-charging hybrid power, and can improve the power transmission efficiency and the integration level and reduce the energy consumption.
In order to achieve the above object, the present invention provides a hybrid transmission system, which includes a battery, a voltage converter, a first driving motor, a second driving motor, an engine, a clutch assembly, a first input shaft assembly, a second input shaft assembly, a first output shaft assembly, a second output shaft assembly, and a reducer assembly;
the first driving motor comprises a first rotor and a first stator, and the first stator is electrically connected with the storage battery through a voltage converter;
the second driving motor comprises a second rotor and a second stator, and the second stator is electrically connected with the storage battery through a voltage converter;
the first rotor is fixedly connected with an output shaft of the engine and is in transmission connection with the clutch assembly;
the output shaft of the engine can be in transmission connection with the first input shaft assembly or the second input shaft assembly through the clutch assembly;
the first output shaft assembly can be in transmission connection with the first input shaft assembly or the second input shaft assembly, and the second rotor can be in transmission connection with the first input shaft assembly;
the second output shaft assembly can be in transmission connection with the first input shaft assembly or the second input shaft assembly;
the speed reducer assembly can be in transmission connection with the first output shaft assembly or the second output shaft assembly.
Optionally, the clutch assembly includes a first clutch and a second clutch, the output shaft of the engine is in transmission connection with the first clutch or the second clutch, the first input shaft assembly is connected with the second clutch to realize transmission of the second speed and the fourth speed, and the second input shaft assembly is connected with the first clutch to realize transmission of the first speed and the third speed.
Optionally, the first input shaft assembly includes a first input shaft and a first driving gear, the first driving gear is disposed on the first input shaft, and the first input shaft is connected with the clutch assembly to realize transmission of the second speed and the fourth speed;
the second input shaft assembly comprises a second input shaft and a second driving gear, the second driving gear is arranged on the second input shaft, and the second input shaft is connected with the clutch assembly to achieve transmission of the first speed and the third speed.
Optionally, the first output shaft assembly includes a first output shaft, and a third driven gear, a fourth driven gear, a motor reduction gear and a first reducer gear that are arranged on the first output shaft, and a first synchronizer is arranged on the first output shaft;
the third driven gear can be meshed with the second driving gear or the fourth driven gear can be meshed with the first driving gear through the first synchronizer;
and the second driving motor is in transmission connection with the motor reduction gear.
Optionally, the first synchronizer includes a third speed gear engaged with the third driven gear and a fourth speed gear engaged with the fourth driven gear.
Optionally, the second output shaft assembly includes a second output shaft, and a first driven gear, a second driven gear and a second reducer gear that are arranged on the second output shaft, and a second synchronizer is arranged on the second output shaft;
the first driven gear can be meshed with the second driving gear or the second driven gear can be meshed with the first driving gear through the second synchronizer.
Optionally, the second synchronizer includes a first speed gear engaged with the first driven gear and a second speed gear engaged with the second driven gear.
Optionally, the first input shaft is sleeved outside the second input shaft, the second input shaft is provided with a needle bearing for rotating and supporting the first input shaft, and two ends of the first input shaft are connected with ball bearings.
Another object of the present invention is to provide a hybrid vehicle including the transmission system.
The embodiment of the invention has the following technical effects:
firstly, the first rotor of the first driving motor is fixedly connected with the output shaft of the engine, so that the following effects are achieved:
1. in the rotation process of the engine, an output shaft of the engine drives the first rotor to rotate, the first rotor and the first stator generate cutting magnetic induction line motion to generate electricity, and meanwhile, the storage battery is charged after voltage stabilization is carried out through the voltage converter, so that conversion and storage from mechanical energy to electric energy are realized, and the hybrid power generator can be used for plug-in hybrid power and can also be used as self-charging hybrid power;
2. the first driving motor and the engine output rotating speed drive together, so that the energy consumption of the engine is saved;
3. the first driving motor and the second driving motor are driven together to realize pure electric driving, green traveling is realized, and oil consumption pollution generated by engine work is reduced.
Secondly, a second driving motor is adopted to drive a first output shaft assembly, the first output shaft assembly is in transmission connection with a speed reducer assembly to realize reverse gear driving, a reverse gear and a reverse gear shaft are omitted, and cost and space are saved;
thirdly, when the automobile brakes, the hub of the automobile continues to slide for a certain distance, and in the sliding process, the hub drives the speed reducer assembly to rotate, and the speed reducer assembly drives the first output shaft to rotate, so that the second rotor of the second driving motor is driven to do cutting magnetic induction line motion relative to the second stator, mechanical energy is converted into electric energy to be stored, and energy conservation and emission reduction of the system are facilitated.
Fourthly, the reasonable layout is adopted to improve the efficiency of system power transmission and reduce the space occupancy rate, the weight and the like of the system.
Drawings
FIG. 1 is a schematic structural diagram of a preferred embodiment of the present invention;
FIG. 2 is a power transmission route diagram of the engine alone driving 1 speed in the preferred embodiment of the present invention;
FIG. 3 is a power transmission route diagram of the engine driven by 2 speeds alone in the preferred embodiment of the present invention;
FIG. 4 is a power transmission route diagram of the engine driven 3 speeds alone in the preferred embodiment of the present invention;
FIG. 5 is a power transmission route diagram of the engine alone driving 4 speeds in the preferred embodiment of the present invention;
FIG. 6 is a power transmission route diagram of the hybrid driving of the engine and the first driving motor for 1 speed in the preferred embodiment of the present invention;
FIG. 7 is a power transmission route diagram of the hybrid driving of the engine and the first driving motor for 2 speeds in the preferred embodiment of the present invention;
FIG. 8 is a power transmission route diagram of the hybrid driving of the engine and the first driving motor for 3 speeds in the preferred embodiment of the present invention;
FIG. 9 is a diagram of a power transmission route of a 4-speed hybrid drive of the engine and the first driving motor in the preferred embodiment of the present invention;
FIG. 10 is a power transmission scheme for pure electric drive for 1 speed of the first and second drive motors in accordance with the preferred embodiment of the present invention;
FIG. 11 is a power transmission scheme for a first drive motor and a second drive motor for pure electric drive at speed 2 in accordance with a preferred embodiment of the present invention;
FIG. 12 is a power transmission scheme for pure electric drive of the first drive motor and the second drive motor for speed 3 in accordance with the preferred embodiment of the present invention;
FIG. 13 is a diagram of a power transmission route for a first drive motor and a second drive motor for pure electric drive at 4 speeds in accordance with a preferred embodiment of the present invention;
FIG. 14 is a power transmission route diagram of the second drive motor driving reverse speed in the preferred embodiment of the present invention;
FIG. 15 is a power transmission route diagram for braking energy recovery in a preferred embodiment of the present invention;
fig. 16 is a power transmission route diagram of the first drive motor starting the engine in the preferred embodiment of the present invention.
Description of reference numerals:
1. the electric vehicle comprises a storage battery, 2, a voltage converter, 3, a first driving motor, 4, a second driving motor, 5, an engine, 6, a clutch assembly, 61, a first clutch, 62, a second clutch, 7, a first input shaft assembly, 71, a first input shaft, 72, a first driving gear, 8, a second input shaft assembly, 81, a second input shaft, 82, a second driving gear, 9, a first output shaft assembly, 91, a first output shaft, 92, a third driven gear, 93, a fourth driven gear, 94, a motor reduction gear, 95, a first reducer gear, 96, a first synchronizer, 10, a second output shaft assembly, 101, a second output shaft, 102, a first driven gear, 103, a second driven gear, 104, a second reducer gear, 105, a second synchronizer, 11 and a reducer assembly.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1, the present embodiment provides a hybrid transmission system including a battery 1, a voltage converter 2, a first driving motor 3, a second driving motor 4, an engine 5, a clutch assembly 6, a first input shaft assembly 7, a second input shaft assembly 8, a first output shaft assembly 9, a second output shaft assembly 10, and a reducer assembly 11;
the first driving motor 3 comprises a first rotor and a first stator, the first stator is electrically connected with the storage battery 1 through the voltage converter 2, the second driving motor 4 is electrically connected with the storage battery 1 through the voltage converter 2, and the first rotor is fixedly connected with an output shaft of the engine 5 and is in transmission connection with the clutch assembly 6;
the first input shaft assembly 7 comprises a first input shaft 71 and a first driving gear 72, the first driving gear 72 is arranged on the first input shaft 71, and the first input shaft 71 is connected with the clutch assembly 6 to realize the transmission of the second speed and the fourth speed;
the second input shaft assembly 8 comprises a second input shaft 81 and a second driving gear 82, the second driving gear 82 is arranged on the second input shaft 81, and the second input shaft 81 is connected with the clutch assembly 6 to realize the transmission of the first speed and the third speed;
the first output shaft assembly 9 includes a first output shaft 91, and a third driven gear 92, a fourth driven gear 93, a motor reduction gear 94, and a first reducer gear 95 that are arranged on the first output shaft 91, and a first synchronizer 96 is arranged on the first output shaft 91;
wherein, the third driven gear 92 can be meshed with the second driving gear 82 or the fourth driven gear 93 can be meshed with the first driving gear 72 through the first synchronizer 96;
wherein, the second driving motor 4 is in transmission connection with the motor reduction gear 94;
the second output shaft assembly 10 includes a second output shaft 101, and a first driven gear 102, a second driven gear 103, and a second reduction gear 104 arranged on the second output shaft 101, a second synchronizer 105 being arranged on the second output shaft 101;
wherein, the second synchronizer 105 can make the first driven gear 102 meshed with the second driving gear 82 or the second driven gear 103 meshed with the first driving gear 72;
the reducer assembly 11 can be selectively in transmission connection with the first reducer gear 95 or the second reducer gear 104.
In the present embodiment, first, by fixedly connecting the first rotor of the first drive motor 3 to the output shaft of the engine 5, the following are achieved:
1. in the rotation process of the engine 5, an output shaft of the engine 5 drives the first rotor to rotate, the first rotor and the first stator generate cutting magnetic induction line motion to generate electricity, and the storage battery 1 is charged after voltage stabilization through the voltage converter 2, so that conversion and storage from mechanical energy to electric energy are realized, and the hybrid power generator can be used for plug-in hybrid power and can also be used as self-charging hybrid power;
2. the first driving motor 3 and the engine 5 output rotating speed drive together, so that the energy consumption of the engine 5 is saved;
3. the first driving motor 3 and the second driving motor 4 are driven together to realize pure electric driving, green traveling is realized, and oil consumption pollution generated by the work of the engine 5 is reduced.
Secondly, the reverse gear is driven by a second driving motor 4, so that a reverse gear and a reverse shaft are omitted, and the cost and the space are saved;
thirdly, the reasonable layout is adopted to improve the efficiency of system power transmission and reduce the space occupancy rate, weight and the like of the system.
Specifically, the second driving motor 4 includes the second rotor, second stator and casing, the second rotor is rotatable to be installed in the casing, the second stator is fixed in the casing, the second rotor is connected with motor reduction gear 94 transmission, the second stator is connected with battery 1 electricity through voltage converter 2, when the car brakes, the wheel hub of car continues to slide a distance, at the in-process that slides, wheel hub drives first output shaft 91 through reduction gear assembly 11 and rotates, thereby drive the second rotor of second driving motor 4 and do the motion of cutting magnetic induction line relative to the second stator, convert mechanical energy into electric energy and store, be favorable to the energy saving and emission reduction of system.
The clutch assembly 6 of the present embodiment includes a first clutch 61 and a second clutch 62, the output shaft of the engine 5 is in transmission connection with the first clutch 61 or the second clutch 62, when the vehicle outputs a first speed and a third speed, the output shaft of the engine 5 is connected with the first clutch 61, and when the vehicle outputs a second speed and a fourth speed, the output shaft of the engine 5 is connected with the second clutch 62.
That is, the first input shaft 71 is connected with the second clutch 62 to effect transmission of the second speed and the fourth speed;
the second input shaft 81 is connected to the first clutch 61 to effect transmission of the first speed and the third speed.
Further, the first synchronizer 96 includes a third speed gear engaged with the third driven gear 92 and a fourth speed gear engaged with the fourth driven gear 93.
The second synchronizer 105 includes a first speed gear that meshes with the first driven gear 102 and a second speed gear that meshes with the second driven gear 103.
In the present embodiment, the first input shaft 71 is sleeved outside the second input shaft 81, and the second input shaft 81 is sleeved with a needle bearing for rotating and supporting the first input shaft 71, as will be known to those skilled in the art, the needle bearing is suitable for a bearing structure with a limited radial installation dimension, in the present embodiment, the second input shaft 81 is sleeved inside the first input shaft 71 through the needle bearing for supporting the second input shaft 81 to rotate inside the first input shaft 71, and two ends of the first input shaft 71 are connected with ball bearings, so that the first input shaft 71 is stably installed and rotates at a high rotation speed.
According to the transmission system of the present embodiment, there are the following driving methods:
the engine 5 is driven by the 1-speed motor alone
Referring to fig. 2, at this time, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the first speed gear of the second synchronizer 105 is engaged with the first driven gear 102, the second output shaft 101 drives the second reduction gear to rotate synchronously, and the second reduction gear is connected to the reduction gear assembly 11 to output the first speed.
The engine 5 is driven by 2 speed alone
Referring to fig. 3, at this time, the output shaft of the engine 5 is connected to the first input shaft 71 through the second clutch 62, the second speed gear of the second synchronizer 105 is engaged with the second driven gear 103, the second output shaft 101 drives the second reduction gear to rotate synchronously, and the second reduction gear is connected to the reducer assembly 11 to output the second speed.
The engine 5 is driven by itself for 3 speeds
Referring to fig. 4, at this time, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the third speed gear of the first synchronizer 96 is engaged with the third driven gear 92, the first reduction gear is driven to rotate synchronously through the first output shaft 91, and the first reduction gear is connected to the reducer assembly 11 to output the third speed.
The engine 5 is driven by 4 speed alone
Referring to fig. 5, at this time, the output shaft of the engine 5 is connected to the first input shaft 71 through the second clutch 62, the fourth speed gear of the first synchronizer 96 is engaged with the fourth driven gear 93, the first reduction gear is driven to rotate synchronously through the first output shaft 91, and the first reduction gear is connected to the reducer assembly 11 to output the fourth speed.
When the output shaft of the engine 5 outputs the first speed to the fourth speed, the output shaft of the engine 5 drives the first rotor of the first driving motor 3 to rotate in the rotating process, so that the first rotor and the first stator generate a magnetic flux cutting line motion to generate electricity, a stable voltage is formed through the voltage converter 2 to charge the storage battery 1, and the conversion and storage from mechanical energy to electric energy are realized.
The engine 5 and the first drive motor 3 are driven in a mixed manner at a speed of 1
Referring to fig. 6, at this time, the engine 5 is started, and at the same time, the first driving motor 3 is started to synchronously drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the first speed gear of the second synchronizer 105 is meshed with the first driven gear 102, the second output shaft 101 drives the second reduction gear to synchronously rotate, and the second reduction gear is connected to the reducer assembly 11 to output the first speed.
The engine 5 and the first driving motor 3 are driven in a mixed mode at a speed of 2
Referring to fig. 7, at this time, the engine 5 is started, and at the same time, the first driving motor 3 is started to synchronously drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected with the first input shaft 71 through the second clutch 62, the second speed gear of the second synchronizer 105 is meshed with the second driven gear 103, the second output shaft 101 drives the second speed reduction gear to synchronously rotate, and the second speed reduction gear is connected with the reducer assembly 11 to output a second speed.
The engine 5 and the first drive motor 3 are driven in a mixed manner at a speed of 3
Referring to fig. 8, at this time, the engine 5 is started, and at the same time, the first driving motor 3 is started to synchronously drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the third speed gear of the first synchronizer 96 is meshed with the third driven gear 92, the first output shaft 91 drives the first reduction gear to synchronously rotate, and the first reduction gear is connected to the reducer assembly 11 to output a third speed.
The engine 5 and the first driving motor 3 are driven in a mixed mode at a speed of 4
Referring to fig. 9, at this time, the engine 5 is started, and at the same time, the first driving motor 3 is started to synchronously drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the first input shaft 71 through the second clutch 62, the fourth speed gear of the first synchronizer 96 is meshed with the fourth driven gear 93, the first output shaft 91 drives the first reduction gear to synchronously rotate, and the first reduction gear is connected to the reducer assembly 11 to output a fourth speed.
The first driving motor 3 and the second driving motor 4 are purely electrically driven at the speed of 1
Referring to fig. 10, at this time, the first driving motor 3 starts to drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the first speed gear of the second synchronizer 105 is engaged with the first driven gear 102, and the second reduction gear is driven to rotate synchronously through the second output shaft 101;
meanwhile, the second driving motor 4 drives the motor reduction gear 94 to rotate, so that the first output shaft 91 drives the first reduction gear to rotate, and the first speed is output when the first reduction gear and the second reduction gear are both connected with the reducer assembly 11.
The first driving motor 3 and the second driving motor 4 are purely electrically driven at the speed of 2
Referring to fig. 11, at this time, the first driving motor 3 starts to drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the first input shaft 71 through the second clutch 62, the second speed gear of the second synchronizer 105 is meshed with the second driven gear 103, and the second reduction gear is driven to rotate synchronously through the second output shaft 101;
meanwhile, the second driving motor 4 drives the motor reduction gear 94 to rotate, so that the first output shaft 91 drives the first reduction gear to rotate, and the first speed is output when the first reduction gear and the second reduction gear are both connected with the reducer assembly 11.
The first driving motor 3 and the second driving motor 4 are purely electrically driven at 3 speeds
Referring to fig. 12, at this time, the first driving motor 3 starts to drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the second input shaft 81 through the first clutch 61, the third speed gear of the first synchronizer 96 is engaged with the third driven gear 92, and the first reduction gear is driven to rotate synchronously through the first output shaft 91;
meanwhile, the second driving motor 4 drives the motor reduction gear 94 to rotate, and the first output shaft 91 and the first driving motor 3 synchronously drive the first reduction gear to rotate, so that a third speed is output when the first reduction gear is connected with the speed reducer assembly 11.
The first driving motor 3 and the second driving motor 4 are purely electrically driven at 4 speeds
Referring to fig. 13, at this time, the first driving motor 3 starts to drive the output shaft of the engine 5 to rotate, the output shaft of the engine 5 is connected to the first input shaft 71 through the second clutch 62, the fourth speed gear of the first synchronizer 96 is meshed with the fourth driven gear 93, and the first reduction gear is driven to rotate synchronously through the first output shaft 91;
meanwhile, the second driving motor 4 drives the motor reduction gear 94 to rotate, and the first output shaft 91 and the first driving motor 3 synchronously drive the first reduction gear to rotate, so that the fourth speed is output when the first reduction gear is connected with the speed reducer assembly 11.
The second driving motor 4 drives the reverse speed
Referring to fig. 14, at this time, the second driving motor 4 drives the motor reduction gear 94 to rotate, and drives the first reduction gear to rotate through the first output shaft 91, so as to output the reverse speed when the first reduction gear is connected with the reducer assembly 11.
Braking energy recovery
Referring to fig. 15, when the automobile is braked, the speed reducer assembly 11 outputs a rotation speed to the first reduction gear, the first reduction gear drives the motor reduction gear 94 to rotate through the first output shaft 91, so that the second rotor and the second stator of the second driving motor 4 generate a cutting magnetic induction line motion to generate power, and a stable voltage is formed through the voltage converter 2 to charge the storage battery 1, so that conversion and storage from mechanical energy to electric energy are realized.
The first drive motor 3 starts the engine 5
Referring to fig. 16, at this time, the first drive motor 3 drives the output shaft of the engine 5 to rotate, thereby achieving the starting of the engine 5.
In summary,
first, the present embodiment realizes that:
1. in the rotation process of the engine 5, an output shaft of the engine 5 drives the first rotor to rotate, the first rotor and the first stator generate cutting magnetic induction line motion to generate electricity, and meanwhile, the storage battery 1 is charged after voltage stabilization is carried out through the voltage converter 2, so that conversion and storage from mechanical energy to electric energy are realized;
2. the first driving motor 3 and the engine 5 output rotating speed drive together, so that the energy consumption of the engine 5 is saved;
3. the first driving motor 3 and the second driving motor 4 are driven together to realize pure electric driving, green traveling is realized, and oil consumption pollution generated by the work of the engine 5 is reduced.
Secondly, the reverse gear is driven by a second driving motor 4, so that a reverse gear and a reverse shaft are omitted, and the cost and the space are saved;
thirdly, when the automobile is braked, the braking energy is recovered through the second driving motor 4, and the mechanical energy is converted into electric energy to be stored, so that the energy conservation and emission reduction of the system are facilitated;
fourthly, the reasonable layout is adopted to improve the efficiency of system power transmission and reduce the space occupancy rate, the weight and the like of the system.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
In addition, the terms "first", "second", and the like are employed in the present invention to describe various information, but the information should not be limited to these terms, which are used only to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A hybrid power transmission system is characterized by comprising a storage battery, a voltage converter, a first driving motor, a second driving motor, an engine, a clutch assembly, a first input shaft assembly, a second input shaft assembly, a first output shaft assembly, a second output shaft assembly and a speed reducer assembly;
the first driving motor comprises a first rotor and a first stator, the first rotor is fixedly connected with an output shaft of the engine and is in transmission connection with the clutch assembly, and the first stator is electrically connected with the storage battery through a voltage converter;
the second driving motor comprises a second rotor and a second stator, and the second stator is electrically connected with the storage battery through a voltage converter;
the output shaft of the engine can be in transmission connection with the first input shaft assembly or the second input shaft assembly through the clutch assembly;
the first output shaft assembly can be in transmission connection with the first input shaft assembly or the second input shaft assembly, and the second rotor can be in transmission connection with the first input shaft assembly;
the second output shaft assembly can be in transmission connection with the first input shaft assembly or the second input shaft assembly;
the speed reducer assembly can be in transmission connection with the first output shaft assembly or the second output shaft assembly.
2. The hybrid transmission system of claim 1, wherein the clutch assembly includes a first clutch and a second clutch, the output shaft of the engine is drivingly connected to either the first clutch or the second clutch, the first input shaft assembly is connected to the second clutch to effect the transfer of the second speed and the fourth speed, and the second input shaft assembly is connected to the first clutch to effect the transfer of the first speed and the third speed.
3. The hybrid transmission system of claim 1, wherein the first input shaft assembly includes a first input shaft and a first drive gear, the first drive gear disposed on the first input shaft, the first input shaft coupled to the clutch assembly to effect the transfer of the second speed and the fourth speed;
the second input shaft assembly comprises a second input shaft and a second driving gear, the second driving gear is arranged on the second input shaft, and the second input shaft is connected with the clutch assembly to achieve transmission of the first speed and the third speed.
4. The hybrid transmission system of claim 3, wherein the first output shaft assembly includes a first output shaft and third, fourth, motor reduction gears and a first reducer gear disposed on the first output shaft, the first output shaft having a first synchronizer disposed thereon;
and the second driving motor is in transmission connection with the motor reduction gear.
5. The hybrid transmission system of claim 4, wherein the first synchronizer includes a third speed gear in mesh with a third driven gear and a fourth speed gear in mesh with a fourth driven gear.
6. The hybrid transmission system of claim 4, wherein the second output shaft assembly includes a second output shaft and first, second and second reducer gears disposed on the second output shaft, the second output shaft having a second synchronizer disposed thereon;
the first driven gear can be meshed with the second driving gear or the second driven gear can be meshed with the first driving gear through the second synchronizer.
7. The hybrid transmission system of claim 6, wherein the second synchronizer includes a first speed gear in mesh with the first driven gear and a second speed gear in mesh with the second driven gear.
8. The hybrid transmission system as recited in claim 6, wherein the first input shaft is disposed outside the second input shaft, the second input shaft being provided with a needle bearing for rotation and support of the first input shaft, ball bearings being connected to both ends of the first input shaft.
9. A hybrid vehicle comprising the transmission system according to any one of claims 1 to 8.
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| CN201811409371.XA CN111219483A (en) | 2018-11-23 | 2018-11-23 | Hybrid electric vehicle and transmission system thereof |
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| CN201811409371.XA CN111219483A (en) | 2018-11-23 | 2018-11-23 | Hybrid electric vehicle and transmission system thereof |
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