CN113561758A - Special speed changer for hybrid power - Google Patents

Special speed changer for hybrid power Download PDF

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Publication number
CN113561758A
CN113561758A CN202111055091.5A CN202111055091A CN113561758A CN 113561758 A CN113561758 A CN 113561758A CN 202111055091 A CN202111055091 A CN 202111055091A CN 113561758 A CN113561758 A CN 113561758A
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CN
China
Prior art keywords
gear
shaft
driving
generator
input shaft
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Pending
Application number
CN202111055091.5A
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Chinese (zh)
Inventor
郑勇
郑未伟
李宇栋
杨加丰
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Jifu Automotive Technology Suzhou Co ltd
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Jifu Automotive Technology Suzhou Co ltd
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Priority to CN202111055091.5A priority Critical patent/CN113561758A/en
Publication of CN113561758A publication Critical patent/CN113561758A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/36—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings
    • B60K6/365—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the transmission gearings with the gears having orbital motion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/24—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the combustion engines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention discloses a special hybrid transmission which comprises a generator, a driving motor, a first input shaft, a second input shaft, an output shaft, a generator speed reduction assembly connected with the generator, a first gear transmission mechanism connected with the output shaft, a second gear transmission mechanism connected with the driving motor and the output shaft, a first clutch used for controlling the combination and the separation between the first input shaft and the generator speed reduction assembly, and a second clutch used for controlling the combination and the separation between the first gear transmission mechanism and the second input shaft. According to the special hybrid power transmission, the combination of the engine, the generator, the driving motor, the first clutch and the second clutch can realize that each power source can correspond to the power output of one gear and various working modes, and the economy and the power performance of the whole vehicle are improved.

Description

Special speed changer for hybrid power
Technical Field
The invention belongs to the technical field of transmissions, and particularly relates to a special hybrid transmission.
Background
With the increasing awareness of environmental protection, new energy vehicles have been rapidly developed in recent years. Compared with the traditional fuel vehicle, the new energy vehicle has the advantages of low energy consumption, light pollution and the like, and can solve the problems of energy shortage, environmental pollution and the like. Due to the factors of long charging time, inconvenience in charging, short endurance mileage and the like, the pure electric new energy automobile becomes an important development direction of the technology.
At present, hybrid power transmissions mainly have two technical routes, the first is to add a motor driving system on the basis of a traditional transmission, and the second is a hybrid power special transmission developed by coupling a gear set or a planetary gear train, a clutch or a synchronizer with double motors, namely DHT technology. For the first solution, the disadvantages are: the working mode is single, the motor space is limited, the power is low, and the range extending mode can be realized only by adding an additional motor. For the second scheme, a pure electric mode that double motors work simultaneously is not provided, and the engine cannot be separately stripped to drive the motor to drive the vehicle, so that extra power loss of the engine is caused.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a special hybrid transmission, and aims to realize multiple working modes and improve the energy utilization rate and the power performance of an automobile.
In order to achieve the purpose, the invention adopts the technical scheme that: the hybrid power special transmission comprises a generator, a driving motor, a first input shaft, a second input shaft, an output shaft, a generator speed reduction assembly connected with the generator, a first gear transmission mechanism connected with the output shaft, a second gear transmission mechanism connected with the driving motor and the output shaft, a first clutch used for controlling the combination and the separation between the first input shaft and the generator speed reduction assembly, and a second clutch used for controlling the combination and the separation between the first gear transmission mechanism and the second input shaft.
The generator speed reduction assembly comprises a first driving shaft fixedly connected with the generator, an idler shaft, a generator driving gear arranged on the first driving shaft, an idler wheel arranged on the idler shaft and meshed with the generator driving gear, and a generator driven gear meshed with the idler wheel, the generator driven gear is connected with the first clutch, and the number of teeth of the generator driven gear is more than that of teeth of the generator driving gear.
The idler shaft and the first drive shaft are arranged in parallel on the same side of the first input shaft.
The first gear transmission mechanism comprises a first driving gear arranged on the second input shaft and a first driven gear arranged on the output shaft and meshed with the first driving gear, and the second clutch is arranged to control the combination and separation between the first driving gear and the second input shaft.
The second gear transmission mechanism comprises a second driving shaft connected with the driving motor, a second driving gear arranged on the second driving shaft and a second driven gear arranged on the output shaft and meshed with the second driving gear.
The second driving shaft, the first input shaft and the second input shaft are coaxially arranged, at least part of the second driving shaft is sleeved on the second input shaft in a hollow mode, and the output shaft is parallel to the first input shaft.
The first clutch, the first driving gear, the second clutch, the second driving gear and the driving motor are sequentially arranged along the axial direction of the first input shaft.
The transmission ratio of the second gear transmission mechanism is larger than that of the first gear transmission mechanism.
The special hybrid transmission can realize multiple working modes by combining the engine, the generator, the driving motor, the first clutch and the second clutch. According to the hybrid power patent transmission, each power source can correspond to the power output of one gear through the separation or combination of the first clutch and the second clutch, and the power performance and the economy of the whole vehicle are improved by flexibly combining according to the requirement of the working condition of the whole vehicle and the state of the SOC of the battery; the first clutch and the second clutch are separated or combined, the range extending mode can be achieved, and the engine can drive the generator to generate power according to the requirement of the SOC state of the battery.
Drawings
The description includes the following figures, the contents shown are respectively:
FIG. 1 is a schematic structural diagram of a hybrid transmission embodying the present invention;
labeled as: 1. an engine; 2. a first input shaft; 3. a first clutch; 4. a generator driven gear; 5. an idler pulley; 6. a generator drive gear; 7. a generator; 8. an idler shaft; 9. a first drive shaft; 10. a second clutch; 11. a drive motor; 12. a second drive shaft; 13. a second input shaft; 14. a first drive gear; 15. a first driven gear; 16. a second driving gear; 17. a second driven gear; 18. an output shaft; 19. an output drive gear; 20. a differential assembly; 21. a differential driven gear.
Detailed Description
The following detailed description of the embodiments of the present invention will be given with reference to the accompanying drawings for a purpose of helping those skilled in the art to more fully, accurately and deeply understand the concept and technical solution of the present invention and to facilitate its implementation.
It should be noted that, in the following embodiments, the "first" and "second" do not represent an absolute distinction relationship in structure and/or function, nor represent a sequential execution order, but merely for convenience of description.
As shown in fig. 1, the present invention provides a hybrid transmission, which includes a generator 7, a driving motor 11, a first input shaft 2, a second input shaft 13, an output shaft 18, a generator speed reduction assembly connected to the generator 7, a first gear mechanism connected to the output shaft 18, a second gear mechanism connected to the driving motor 11 and the output shaft 18, a first clutch 3 for controlling the connection and disconnection between the first input shaft 2 and the generator speed reduction assembly, and a second clutch 10 for controlling the connection and disconnection between the first gear mechanism and the second input shaft 13.
Specifically, as shown in fig. 1, the generator speed reduction assembly includes a first driving shaft 9 fixedly connected to the generator 7, an idler shaft 8, a generator driving gear 6 disposed on the first driving shaft 9, an idler gear 5 disposed on the idler shaft 8 and engaged with the generator driving gear 6, and a generator driven gear 4 engaged with the idler gear 5; the generator driving gear 6 is fixedly arranged on the first driving shaft 9, the idler 5 is fixedly arranged on the idler shaft 8, the generator driven gear 4 is fixedly connected with the second input shaft 13, and the number of teeth of the generator driven gear 4 is more than that of the generator driving gear 6; the idler shaft 8 and the first drive shaft 9 are arranged in parallel on the same side of the first input shaft 2, the first input shaft 2 being connected to the engine 1. The first clutch 3 is provided for controlling engagement and disengagement between the generator driven gear 4 and the first input shaft 2.
As shown in fig. 1, the first gear transmission mechanism includes a first driving gear 14 disposed on the second input shaft and a first driven gear 15 disposed on the output shaft 18 and engaged with the first driving gear 14, and the second clutch 10 is disposed to control engagement and disengagement between the first driving gear 14 and the second input shaft 13. The second gear transmission mechanism includes a second driving shaft 12 connected to the driving motor 11, a second driving gear 16 provided on the second driving shaft 12, and a second driven gear 17 provided on the output shaft 18 and engaged with the second driving gear 16. The second driving shaft 12 is coaxially arranged with the first input shaft 2 and the second input shaft 13, the second driving shaft 12 is at least partially hollow on the second input shaft 13, and the output shaft 18 is parallel with the first input shaft 2. The second driving shaft 12 is fixedly connected with a rotor of the driving motor 11, the first driving gear 14 is sleeved on the second input shaft 13 in a hollow manner, the second driving gear 16 is fixedly arranged on the second driving shaft 12, and the first driven gear 15 and the second driven gear 17 are fixedly arranged on the output shaft 18.
As shown in fig. 1, the first clutch 3, the first driving gear 14, the second clutch 10, the second driving gear 16, and the driving motor 11 are sequentially arranged in the axial direction of the first input shaft 2, and the first clutch 3 is disposed on a side close to the engine 1.
As shown in fig. 1, the gear ratio of the second gear transmission mechanism is greater than the gear ratio of the first gear transmission mechanism. The diameter of the first driving gear 14 is larger than that of the second driving gear 16, and the diameter of the first driven gear 15 is smaller than that of the second driven gear 17.
As shown in fig. 1, an output driving gear 19 is further provided on the output shaft 18, the output driving gear 19 is engaged with a differential driven gear 21, and the output driving gear 19 is located between the first driven gear 15 and the second driven gear 17. The differential driven gear 21 is fixedly arranged on the differential assembly 20, the differential assembly 20 is connected with the transmission shaft, and the number of teeth of the differential driven gear 21 is more than that of the output driving gear 19. The differential assembly 20 transmits the power of the transmission to the propeller shaft of the vehicle, thereby rotating the wheels.
Next, different operation modes of the hybrid transmission configured as described above will be described.
As shown in fig. 1, when the hybrid transmission is operated in the electric-only mode, the first clutch 3 is in a disengaged state, the first input shaft 2 and the second input shaft 13 cannot rotate synchronously, and the power of the engine 1 cannot be transmitted to the differential assembly 20. The driving motor 11 is operated, and power generated by the driving motor 11 is transmitted to the wheels through the second driving shaft 12, the second driving gear 16, the second driven gear 17, the output shaft 18, the output driving gear 19 and the differential assembly 20 in sequence, so as to drive the vehicle to run. According to the SOC state of the power battery and the power demand of the vehicle, when the second clutch 10 is controlled to be in a separation state, single-motor driving in the mode is realized; when the second clutch 10 is controlled to be in a combined state, the first driving gear 14 can synchronously rotate with the second input shaft 13, the generator 7 is controlled to work, power generated by the generator 7 is transmitted to the output shaft 18 sequentially through the first driving shaft 9, the generator driving gear 6, the idler gear 5, the generator driven gear 4, the second input shaft 13, the first driving gear 14 and the first driven gear 15, power generated by the generator 7 and the driving motor 11 is coupled on the output shaft 18, then power on the output shaft 18 is transmitted to wheels sequentially through the output driving gear 19 and the differential assembly 20, the vehicle is driven to run, double-motor driving in the mode is achieved, and output power is enhanced.
As shown in fig. 1, when the hybrid transmission is operated in the series range-extending mode, the first clutch 3 is in an engaged state, the generator driven gear 4 and the first input shaft 2 can rotate synchronously, the second clutch 10 is in a disengaged state, the first driving gear 14 cannot rotate synchronously with the second input shaft 13, the engine 1 drives the generator 7 to generate electricity only through the first clutch 3, the generator driven gear 4, the idler gear 5, the generator driving gear 6 and the first driving shaft 9, the driving motor 11 is driven, and power generated by the driving motor 11 is transmitted to wheels through the second driving shaft 12, the second driving gear 16, the second driven gear 17, the output shaft 18, the output driving gear 19 and the differential assembly 20 in sequence to drive the vehicle to run.
As shown in fig. 1, when the hybrid transmission is operated in the engine drive mode, the first clutch 3 is engaged to allow the second input shaft 13 and the first input shaft 2 to rotate synchronously, the second clutch 10 is engaged to allow the first drive gear 14 and the second input shaft 13 to rotate synchronously, the generator 7 and the drive motor 11 are both in a non-operating state, and the power generated by the engine 1 is transmitted to the wheels through the first input shaft 2, the first clutch 3, the second input shaft 13, the second clutch 10, the first drive gear 14, the first driven gear 15, the output shaft 18, the output drive gear 19, and the differential assembly 20 in this order to drive the vehicle to travel. The generator 7 may be engaged in driving, generating or idling in the engine driving mode and the driving motor 11 may be engaged in driving or idling, depending on the state of the power battery SOC and the power demand of the vehicle.
As shown in fig. 1, when the hybrid transmission is operated in the braking energy recovery mode, the first clutch 3 is in the disengaged state, the generator driven gear 4 and the first input shaft 2 cannot rotate synchronously, the second clutch 10 is in the disengaged state, the braking energy of the vehicle is transmitted to the driving motor 11 through the differential assembly 20, the output driving gear 19, the output shaft 18, the second driven gear 17, the second driving gear 16 and the second driving shaft 12, the driving motor 11 generates power, and the storage battery is charged.
As shown in fig. 1, when the hybrid transmission is operated in the parking power generation mode, the first clutch 3 is engaged to allow the generator driven gear 4 and the first input shaft 2 to rotate synchronously, the second clutch 10 is disengaged, the driving motor 11 is not operated, the engine 1 is operated, the power generated by the engine 1 is transmitted to the generator 7 through the first input shaft 2, the first clutch 3, the generator driven gear 4, the idle gear 5, the generator driving gear 6, and the first drive shaft 9 in this order, the generator 7 generates power, and the battery is charged.
The invention is described above with reference to the accompanying drawings. It is to be understood that the specific implementations of the invention are not limited in this respect. Various insubstantial improvements are made by adopting the method conception and the technical scheme of the invention; the present invention is not limited to the above embodiments, and can be modified in various ways.

Claims (8)

1. The special hybrid transmission comprises a generator, a driving motor, a first input shaft, a second input shaft, an output shaft, a generator speed reduction assembly connected with the generator, a first gear transmission mechanism connected with the output shaft, and a second gear transmission mechanism connected with the driving motor and the output shaft, and is characterized in that: the first clutch is used for controlling connection and disconnection between the first input shaft and the generator speed reduction assembly, and the second clutch is used for controlling connection and disconnection between the first gear transmission mechanism and the second input shaft.
2. The hybrid dedicated transmission according to claim 1, characterized in that: the generator speed reduction assembly comprises a first driving shaft fixedly connected with the generator, an idler shaft, a generator driving gear arranged on the first driving shaft, an idler wheel arranged on the idler shaft and meshed with the generator driving gear, and a generator driven gear meshed with the idler wheel, the generator driven gear is connected with the first clutch, and the number of teeth of the generator driven gear is more than that of teeth of the generator driving gear.
3. The hybrid dedicated transmission according to claim 2, characterized in that: the idler shaft and the first drive shaft are arranged in parallel on the same side of the first input shaft.
4. The hybrid dedicated transmission according to any one of claims 1 to 3, characterized in that: the first gear transmission mechanism comprises a first driving gear arranged on the second input shaft and a first driven gear arranged on the output shaft and meshed with the first driving gear, and the second clutch is arranged to control the combination and separation between the first driving gear and the second input shaft.
5. The hybrid dedicated transmission according to any one of claims 1 to 3, characterized in that: the second gear transmission mechanism comprises a second driving shaft fixedly connected with the driving motor, a second driving gear arranged on the second driving shaft and a second driven gear arranged on the output shaft and meshed with the second driving gear.
6. The gear hybrid transmission of claim 5, wherein: the second driving shaft, the first input shaft and the second input shaft are coaxially arranged, at least part of the second driving shaft is sleeved on the second input shaft in a hollow mode, and the output shaft is parallel to the first input shaft.
7. The hybrid dedicated transmission according to any one of claims 1 to 5, characterized in that: the first clutch, the first driving gear, the second clutch, the second driving gear and the driving motor are sequentially arranged along the axial direction of the first input shaft.
8. The hybrid dedicated transmission according to any one of claims 1 to 3, characterized in that: the transmission ratio of the second gear transmission mechanism is larger than that of the first gear transmission mechanism.
CN202111055091.5A 2021-09-09 2021-09-09 Special speed changer for hybrid power Pending CN113561758A (en)

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Application Number Priority Date Filing Date Title
CN202111055091.5A CN113561758A (en) 2021-09-09 2021-09-09 Special speed changer for hybrid power

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Application Number Priority Date Filing Date Title
CN202111055091.5A CN113561758A (en) 2021-09-09 2021-09-09 Special speed changer for hybrid power

Publications (1)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101450608A (en) * 2007-12-07 2009-06-10 比亚迪股份有限公司 Parking powder facility of hybrid drive vehicle and control method thereof
WO2017107849A1 (en) * 2015-12-25 2017-06-29 比亚迪股份有限公司 Power drive system and vehicle having said power drive system
CN110578772A (en) * 2019-09-26 2019-12-17 吉孚汽车技术(浙江)有限公司 Special gearbox for hybrid power
CN213082898U (en) * 2020-06-22 2021-04-30 重庆青山工业有限责任公司 Hybrid power driving system and hybrid power automobile
CN215705646U (en) * 2021-09-09 2022-02-01 吉孚汽车技术(苏州)有限公司 Special speed changer for hybrid power

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101450608A (en) * 2007-12-07 2009-06-10 比亚迪股份有限公司 Parking powder facility of hybrid drive vehicle and control method thereof
WO2017107849A1 (en) * 2015-12-25 2017-06-29 比亚迪股份有限公司 Power drive system and vehicle having said power drive system
CN110578772A (en) * 2019-09-26 2019-12-17 吉孚汽车技术(浙江)有限公司 Special gearbox for hybrid power
CN213082898U (en) * 2020-06-22 2021-04-30 重庆青山工业有限责任公司 Hybrid power driving system and hybrid power automobile
CN215705646U (en) * 2021-09-09 2022-02-01 吉孚汽车技术(苏州)有限公司 Special speed changer for hybrid power

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