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CN112356651A - Transmission, driving system and vehicle - Google Patents

Transmission, driving system and vehicle Download PDF

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Publication number
CN112356651A
CN112356651A CN202011321062.4A CN202011321062A CN112356651A CN 112356651 A CN112356651 A CN 112356651A CN 202011321062 A CN202011321062 A CN 202011321062A CN 112356651 A CN112356651 A CN 112356651A
Authority
CN
China
Prior art keywords
gear
clutch
transmission
input shaft
planetary gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202011321062.4A
Other languages
Chinese (zh)
Inventor
杨上东
段志辉
原诚寅
邢杰
徐东博
杨良会
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing New Energy Vehicle Technology Innovation Center Co Ltd
Original Assignee
Beijing New Energy Vehicle Technology Innovation Center Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing New Energy Vehicle Technology Innovation Center Co Ltd filed Critical Beijing New Energy Vehicle Technology Innovation Center Co Ltd
Priority to CN202011321062.4A priority Critical patent/CN112356651A/en
Publication of CN112356651A publication Critical patent/CN112356651A/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
    • 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 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 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 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
    • 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 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 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 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 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
    • 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 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 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 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K6/485—Motor-assist type
    • 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
    • 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • 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
    • 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 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 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/48—Parallel type
    • B60K2006/4825—Electric machine connected or connectable to gearbox input shaft
    • 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)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The invention relates to the technical field of speed change, in particular to a transmission, a driving system and a vehicle, wherein the transmission comprises a planetary gear train, a first clutch, a second clutch and a gear box; the gearbox includes a first input shaft and a second input shaft; the first clutch is in transmission connection with the first input shaft; the planetary gear train is in transmission connection with the second clutch and the second input shaft respectively; according to the invention, the double-input shaft can be simultaneously input through the planetary gear train, and the number of gears is increased through the matching of the first clutch, the second clutch and the planetary gear train; the first power source is matched with the planetary gear train through the first clutch, the engine starting function can be realized by utilizing the planetary gear train, and the development difficulty of starting the first clutch is avoided; the in-process that the first power supply shifted gears can utilize the second power supply to carry out driving torque compensation through the second input shaft, when realizing increasing the fender and starting the function, fully guarantees actuating system and shifts the quality.

Description

Transmission, driving system and vehicle
Technical Field
The invention relates to the technical field of speed change, in particular to a transmission, a driving system and a vehicle.
Background
Hybrid power is an important technology for energy conservation and emission reduction of automobiles, and a hybrid power transmission is one of core technologies in the field. Hybrid transmissions having superior performance are required to meet a number of requirements, including: the novel hydraulic power system has the advantages of small size, low cost, multiple gears, low oil consumption, good dynamic property, good driving property, high technical availability and the like. At present, three technical routes mainly exist in the industry: the power distribution system based on the double-motor planet wheel, the single-motor parallel system and the double-motor series-parallel system. The transmission device is based on a single-motor parallel system, particularly based on a gear transmission scheme, has the advantages of low cost, good dynamic property, high transmission efficiency and the like, and is widely applied. However, in the specific implementation, the single-motor parallel hybrid system also has respective limitations, mainly including: (1) if the principle is based on the traditional double-clutch transmission (hereinafter referred to as DCT) or automatic transmission (hereinafter referred to as AT), the difficulty and cost for increasing the gear number are high. (2) The single-motor hybrid transmission based on DCT/AT needs to develop a starting clutch, and the technical difficulty is high, and the single-motor hybrid transmission is monopolized by the technology of a few manufacturers and has poor technical availability. (3) Based on the scheme that planet wheel and biax case combine, there is the process of shifting complicacy mostly, or there is the torque interruption scheduling problem among the process of shifting. The method mainly solves the difficult problems existing in the single-motor parallel type hybrid system: the gear lifting difficulty is high, the starting device development difficulty is high, the drivability in the gear shifting process is possibly influenced, and the like.
The solutions in the prior art include:
a typical P2.5 hybrid scheme, for example, patent CN201320639229.0 discloses a DCT-based parallel hybrid scheme, in which a driving motor is connected to a driving shaft of a DCT, and the scheme can implement functions of pure electric drive, engine start, parallel engine-motor drive, and the like, but the transmission still relies on a dual-clutch starter, and the component technology is limited. The scheme can realize the function of a hybrid power function, but the gear lifting of the dual clutch completely depends on the lifting of the number of gears, and the development difficulty of the dual clutch with the starting function is high. Aiming at the defects, the gear lifting and vehicle starting functions are realized by adding the planetary gear train.
A typical parallel AMT hybrid scheme, such as the parallel hybrid scheme disclosed in patent No. cn201821094077.x, does not require a dual clutch, and a driving motor can compensate a system driving torque in an engine shifting process, so as to improve drivability, and has good innovativeness. Although the clutch is only a single clutch, the clutch still needs to have a starting function, which is difficult, and the power transmission path is complicated, which also affects the system efficiency. According to the scheme, a hybrid power function can be realized, the problem of AMT gear shifting power interruption is avoided by adopting motor compensation driving torque in the engine gear shifting process, the gear number is increased based on the number of gears, a single clutch adopted by the engine gear shifting process also needs to have a starting function, the development difficulty is high, the AMT gear shifting part needs to be brand-new developed, and the development cost and the mass production difficulty are high. Aiming at the defects, the scheme adopts a DCT double-axle box part, one shaft drives to ensure that the driving torque is not interrupted, and the other power source shifts gears, so that unpowered interrupted gear shifting is realized. The planet gear is used for starting the whole vehicle, so that the problem of high development difficulty of a starting clutch can be solved. In addition, the DCT double-shaft box has wide production supply chain and is easy to realize mass production.
A typical planetary gear train and double axle box hybrid scheme, such as a hybrid scheme based on a double-shaft input box disclosed in patent DE102012220829a1, uses a planetary gear train to realize engine starting, and realizes engine gear shifting through motor matching. However, due to the connection form, the gears of the hybrid box can only be fixed gears, and the function of adding gears by the planet wheel cannot be realized. According to the scheme, the starting function of the planet gear is utilized, the ordinary double clutches are utilized to realize unpowered interruption gear shifting, but the function of lifting the gear position of the hybrid box cannot be realized, and the system economy is difficult to optimize.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the problems that gears are difficult to increase, a starting clutch is difficult to develop and double clutches are needed to ensure torque uninterrupted in the gear shifting process in the common single-motor parallel hybrid are solved; meanwhile, the transmission, the driving system and the vehicle solve the problems that a gear shifting process is complex and gears are difficult to increase due to the adoption of a scheme of combining a planet wheel with a double axle box.
In order to solve the above technical problems, a first technical solution adopted by the present invention is:
a transmission comprises a planetary gear train, a first clutch, a second clutch and a gear box;
the gearbox includes a first input shaft and a second input shaft;
the first clutch is in transmission connection with the first input shaft;
the planetary gear train is in transmission connection with the second clutch and the second input shaft respectively.
In order to solve the above technical problem, the second technical solution adopted by the present invention is:
a driving system comprises a first power source, a second power source and the transmission;
the first power source is in transmission connection with the first input shaft through a first clutch, and the first power source is in transmission connection with the planetary gear train through a second clutch;
the second power source is in transmission connection with the planetary gear train.
In order to solve the above technical problems, the third technical solution adopted by the present invention is:
a vehicle comprises the transmission and/or the driving system.
The invention has the beneficial effects that: the double-input-shaft synchronous input device can realize the simultaneous input of double input shafts through the planetary gear train, and the number of gears is improved through the matching of the first clutch, the second clutch and the planetary gear train; the first power source is matched with the planetary gear train through the first clutch, the engine starting function can be realized by utilizing the planetary gear train, and the development difficulty of starting the first clutch is avoided; in the process of shifting by the first power source, the second power source can be utilized to compensate the driving torque through the second input shaft, so that the shifting quality of the driving system is fully ensured while the functions of gear increasing and starting are realized; the invention overcomes the problems that in the prior art, the common single-motor parallel hybrid power is difficult to increase gears, the starting clutch is difficult to develop, and two clutches are needed in the gear shifting process to ensure that the torque is not interrupted; the industry also adopts a scheme of combining a planet wheel with a double axle box, but the gear shifting process is complex, the gear is difficult to increase, and the scheme of the invention also effectively solves the problems.
Drawings
Fig. 1 is a schematic view of a driving system according to a fifth embodiment of the present invention;
FIG. 2 is a schematic diagram of the output compensation torque of an engine unpowered interrupted shift according to a fifth embodiment of the present invention;
FIG. 3 is a schematic diagram of a drive system according to a sixth embodiment of the present invention;
description of reference numerals: 1. a second power source; 2. a second clutch; 3. a first clutch; 4. a ring gear; 5. a sun gear; 6. a planet carrier; 7. a first gear pair; 8. a second gear pair; 9. a third gear pair; 10. a fourth gear pair; 11. a fifth gear pair; 12. a sixth gear pair; 13. a seventh gear pair; 14. a first synchronizer; 15. a second synchronizer; 16. a third synchronizer; 17. a fourth synchronizer; 18. a first input shaft; 19. an output shaft; 20. a second input shaft; 21. a gear case; 22. a first power source; 23. a planetary gear train; 24. and a third clutch.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 3, a transmission includes a planetary gear train 23, a first clutch 3, a second clutch 2, and a gear box 21;
the gearbox 21 comprises a first input shaft 18 and a second input shaft 20;
the first clutch 3 is in transmission connection with the first input shaft 18;
the planetary gear train 23 is in transmission connection with the second clutch 2 and the second input shaft 20 respectively.
Further, the gear box 21 further includes an output shaft 19, a plurality of transmission gear pairs respectively disposed on the first input shaft 18 and the second input shaft 20, and a synchronizing member engaged with the transmission gear pairs and disposed on the output shaft 19.
From the above description, it can be seen that by adopting the arrangement of the transmission gear pair and the synchronizing member cooperating therewith, the number of gears can be controlled by controlling the number of the gear pairs.
Further, the plurality of transmission gear pairs include a first gear pair 7, a second gear pair 8, a third gear pair 9, a fourth gear pair 10, a fifth gear pair 11, a sixth gear pair 12 and a seventh gear pair 13;
the synchronizers include a first synchronizer 14, a second synchronizer 15, a third synchronizer 16 and a fourth synchronizer 17;
the first gear pair 7, the second gear pair 8 and the third gear pair 9 are arranged on the second input shaft 20, and the first synchronizer 14 and the second synchronizer 15 are matched with a transmission gear pair on the second input shaft 20; the fourth gear pair 10, the fifth gear pair 11, the sixth gear pair 12 and the seventh gear pair 13 are arranged on a first input shaft 18, and the third synchronizer 16 and the fourth synchronizer 17 are matched with a transmission gear pair on the first input shaft 18;
the first gear pair 7 and the second gear pair 8 share a first synchronizer 14; said third gear pair 9 cooperates with a second synchronizer 15; the fourth gear pair 10 and the fifth gear pair 11 share a third synchronizer 16; the sixth gear pair 12 shares a fourth synchronizer 17 with the seventh gear pair 13.
Further, the planetary gear train 23 includes a gear ring 4, a sun gear 5, a planetary gear and a planet carrier 6, the planetary gear is arranged between the gear ring 4 and the sun gear 5, and the planet carrier 6 is connected to the planetary gear;
the sun gear 5 is in transmission connection with a second input shaft 20; the second clutch 2 is in transmission connection with a planet carrier 6 or a sun gear 5.
Further, the transmission also comprises a third clutch 24, and the third clutch 24 is in transmission connection with the planetary gear train 23.
As can be seen from the above description, by setting the third clutch 24, when the engine is shifted, the unpowered shift can be realized through the second clutch 2 and the third clutch 24 without the motor intervening in the shift process; because the motor does not intervene in the engine for gear shifting, the power and torque selection of the motor can be flexibly configured, the gear shifting quality and the driving comfort cannot be influenced, and the second clutch 2 and the third clutch 24 only have the gear shifting function and do not need to develop the starting function, so that the common clutch can be adopted.
Further, the planetary gear train 23 is a double planetary gear train 23.
A drive system comprising a first power source 22, a second power source 1, and a transmission as claimed in any one of claims 1 to 6;
the first power source 22 is in transmission connection with the first input shaft 18 through the first clutch 3, and the first power source 22 is in transmission connection with the planetary gear train 23 through the second clutch 2;
the second power source 1 is in transmission connection with the planetary gear train 23.
Further, the first power source 22 is in transmission connection with the planet carrier 6 of the planetary gear train 23 through the second clutch 2, and the second power source 1 is in transmission connection with the sun gear 5 of the planetary gear train 23;
or the first power source 22 is in transmission connection with the sun gear 5 of the planetary gear train 23 through the second clutch 2, and the second power source 1 is in transmission connection with the ring gear 4 of the planetary gear train 23.
Further, the first power source 22 is an engine, and the second power source 1 is an electric motor.
A vehicle comprising a transmission as claimed in any preceding claim and/or a drive system as claimed in any preceding claim.
From the above description, the present application can realize the simultaneous input of the two input shafts through the planetary gear train 23, and realize the lifting of the gear number through the cooperation of the first clutch 3, the second clutch 2 and the planetary gear train 23; the first power source 22 is matched with the planetary gear train 23 through the first clutch 3, the engine starting function can be realized by utilizing the planetary gear train 23, and the development difficulty of starting the first clutch 3 is avoided; the gear shifting quality of a driving system is fully ensured while the functions of gear increasing and starting are realized; the invention overcomes the problems that in the prior art, the common single-motor parallel hybrid power is difficult to increase gears, the starting clutch is difficult to develop, two clutches are needed in the gear shifting process, and the torque is not interrupted, and the invention effectively solves the problems; the industry also adopts a scheme of combining a planet wheel with a double axle box, but the gear shifting process is complex, the gear is difficult to increase, and the scheme of the invention also effectively solves the problems.
Example one
A transmission comprises a planetary gear train, a first clutch, a second clutch and a gear box;
the gearbox includes a first input shaft and a second input shaft;
the first clutch is in transmission connection with the first input shaft;
the planetary gear train is in transmission connection with the second clutch and the second input shaft respectively.
The gear box also comprises an output shaft, a plurality of transmission gear pairs and a synchronizing part matched with the transmission gear pairs; the gear box is a double-shaft gear box;
the transmission gear pairs are respectively arranged on the first input shaft and the second input shaft, and the synchronizing part is arranged on the output shaft.
Seven transmission gear pairs comprise a first gear pair, a second gear pair, a third gear pair, a fourth gear pair, a fifth gear pair, a sixth gear pair and a seventh gear pair;
the four synchronizing pieces comprise a first synchronizer, a second synchronizer, a third synchronizer and a fourth synchronizer;
the first gear pair, the second gear pair and the third gear pair are arranged on the second input shaft, and the first synchronizer and the second synchronizer are matched with the transmission gear pair on the second input shaft;
the first gear pair and the second gear pair share a first synchronizer;
the third gear pair is matched with the second synchronizer;
the fourth gear pair, the fifth gear pair, the sixth gear pair and the seventh gear pair are arranged on the first input shaft, and the third synchronizer and the fourth synchronizer are matched with the transmission gear pair on the first input shaft;
the fourth gear pair and the fifth gear pair share a third synchronizer;
and the sixth gear pair and the seventh gear pair share a fourth synchronizer.
The planetary gear train comprises a gear ring, a sun gear, a planet gear and a planet carrier, the planet gear is arranged between the gear ring and the sun gear, and the planet carrier is connected to the planet gear;
the sun gear is in transmission connection with the second input shaft;
the second clutch is in transmission connection with the planet carrier.
Example two
A transmission, the same as the first embodiment, will not be described again
The second clutch is in transmission connection with the sun gear.
EXAMPLE III
A transmission, the same as the first embodiment or the second embodiment will not be described again, wherein
The transmission also comprises a third clutch, and the third clutch is in transmission connection with the planetary gear train.
Example four
A transmission, which is the same as any of the first, second and third embodiments, is not repeated herein, wherein
The planetary gear train is a double-planetary gear train.
EXAMPLE five
Referring to fig. 1 and 2;
a drive system comprising a first power source, a second power source, and the transmission of embodiment one;
the first power source is in transmission connection with the first input shaft through a first clutch, and the first power source is in transmission connection with the planetary gear train through a second clutch;
the second power source is in transmission connection with the planetary gear train.
The first power source is in transmission connection with a planet carrier of the planetary gear train through a second clutch, and the second power source is in transmission connection with a sun gear of the planetary gear train;
the first power source is an engine and the second power source is an electric motor.
This embodiment can realize that multiple gearbox keeps off the position combination, greatly improves driving system's efficiency, and the main combination has:
Figure BDA0002792891440000081
the scheme can be realized as follows: the hybrid power system has all hybrid power functions of a pure electric mode, starting of an engine, starting of the engine, unpowered interruption and gear shifting of the engine, energy recovery, driving of the engine assisted by a motor or power generation and the like. The main implementation functions are described as follows:
Figure BDA0002792891440000091
EXAMPLE six
Referring to fig. 3;
a driving system similar to the fifth embodiment will not be described again
The transmission also comprises a third clutch, and the third clutch is in transmission connection with a sun gear of the planetary gear train.
EXAMPLE seven
A drive system comprising a first power source, a second power source, and the transmission of embodiment two;
the first power source is in transmission connection with the first input shaft through a first clutch, and the first power source is in transmission connection with the planetary gear train through a second clutch;
the second power source is in transmission connection with the planetary gear train.
The first power source is in transmission connection with a sun gear of the planetary gear train through a second clutch, and the second power source is in transmission connection with a gear ring of the planetary gear train.
The first power source is an engine and the second power source is an electric motor.
Example eight
A vehicle comprising a transmission of embodiment one to embodiment four and/or a drive system of embodiment five to embodiment seven.
In conclusion, in the fifth embodiment provided by the invention, when the engine shifts gears, the driving motor performs driving torque compensation through the input shaft connected with the driving motor, so that the unpowered interrupted gear shifting of the engine is realized, the motor does not participate in the speed regulation of the engine in the gear shifting process, and the gear shifting quality and reliability are ensured; in the sixth embodiment, during the shifting process of the engine, the unpowered interrupted shifting can be realized through the first clutch (the first clutch does not need to be specially designed, and can be directly realized through a common clutch). In the driving system of the present application, the first power source and the second power source may be selectively connected to achieve transmission, and the above two forms and one of the other modifications in the multiple embodiments may be: the first clutch is connected with the gear ring, and the second clutch is connected with the planet carrier; the first clutch can also be connected with the planet carrier, and the second wheel and the air connection gear ring realize similar functions; a double planetary gear train can be adopted to replace a single planetary gear train to realize similar functions.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.

Claims (10)

1. A transmission is characterized by comprising a planetary gear train, a first clutch, a second clutch and a gear box;
the gearbox includes a first input shaft and a second input shaft;
the first clutch is in transmission connection with the first input shaft;
the planetary gear train is in transmission connection with the second clutch and the second input shaft respectively.
2. The transmission of claim 1, wherein the gearbox further comprises an output shaft, a plurality of pairs of drive gears disposed on the first and second input shafts, respectively, and a synchronizing member engaged with the pairs of drive gears disposed on the output shaft.
3. The transmission of claim 2, wherein the plurality of transmission gear pairs includes a first gear pair, a second gear pair, a third gear pair, a fourth gear pair, a fifth gear pair, a sixth gear pair, and a seventh gear pair;
the synchronizer comprises a first synchronizer, a second synchronizer, a third synchronizer and a fourth synchronizer;
the first gear pair, the second gear pair and the third gear pair are arranged on the second input shaft, and the first synchronizer and the second synchronizer are matched with the transmission gear pair on the second input shaft; the fourth gear pair, the fifth gear pair, the sixth gear pair and the seventh gear pair are arranged on the first input shaft, and the third synchronizer and the fourth synchronizer are matched with the transmission gear pair on the first input shaft;
the first gear pair and the second gear pair share the first synchronizer; the third gear pair is matched with the second synchronizer; the fourth gear pair and the fifth gear pair share the third synchronizer; the sixth gear pair and the seventh gear pair share the fourth synchronizer.
4. The transmission of claim 1, wherein the planetary gear train comprises a ring gear, a sun gear, planet gears disposed between the ring gear and the sun gear, and a planet carrier connected to the planet gears;
the sun gear is in transmission connection with the second input shaft; the second clutch is in transmission connection with the planet carrier or the sun gear.
5. The transmission of claim 1, further comprising a third clutch, wherein the third clutch is in driving connection with the planetary gear set.
6. The transmission of claim 1, wherein the planetary gear train is a double planetary gear train.
7. A drive system comprising a first power source, a second power source, and the transmission of any one of claims 1-6;
the first power source is in transmission connection with the first input shaft through a first clutch, and the first power source is in transmission connection with the planetary gear train through a second clutch;
the second power source is in transmission connection with the planetary gear train.
8. The drive system of claim 7, wherein the first power source is drivingly connected to the planet carrier of the planetary gear train through a second clutch, and the second power source is drivingly connected to the sun gear of the planetary gear train;
or the first power source is in transmission connection with a sun gear of the planetary gear train through a second clutch, and the second power source is in transmission connection with a gear ring of the planetary gear train.
9. The drive system of any one of claims 7-8, wherein the first power source is an engine and the second power source is an electric motor.
10. A vehicle comprising a transmission according to any one of claims 1 to 6 and/or a drive system according to any one of claims 7 to 9.
CN202011321062.4A 2020-11-23 2020-11-23 Transmission, driving system and vehicle Pending CN112356651A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020088291A1 (en) * 2001-01-10 2002-07-11 Bowen Thomas C. Twin clutch automated transmission with integrated transfer case
CN204845513U (en) * 2015-08-28 2015-12-09 上海中科深江电动车辆有限公司 Insert an electric formula hybrid vehicle driving system
WO2016053171A1 (en) * 2014-09-29 2016-04-07 Scania Cv Ab Hybrid powertrain, method for controlling such a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program for controlling such a hybrid power- train, and a computer program product comprising program code
CN106864247A (en) * 2017-01-25 2017-06-20 段志辉 For the hybrid power system of vehicle
CN110525191A (en) * 2019-09-20 2019-12-03 段志辉 Hybrid power system and its control method for vehicle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020088291A1 (en) * 2001-01-10 2002-07-11 Bowen Thomas C. Twin clutch automated transmission with integrated transfer case
WO2016053171A1 (en) * 2014-09-29 2016-04-07 Scania Cv Ab Hybrid powertrain, method for controlling such a hybrid powertrain, vehicle comprising such a hybrid powertrain, computer program for controlling such a hybrid power- train, and a computer program product comprising program code
CN204845513U (en) * 2015-08-28 2015-12-09 上海中科深江电动车辆有限公司 Insert an electric formula hybrid vehicle driving system
CN106864247A (en) * 2017-01-25 2017-06-20 段志辉 For the hybrid power system of vehicle
CN110525191A (en) * 2019-09-20 2019-12-03 段志辉 Hybrid power system and its control method for vehicle

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