CN113511063B - Planetary hybrid transmission for motor vehicles - Google Patents

Planetary hybrid transmission for motor vehicles Download PDF

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Publication number
CN113511063B
CN113511063B CN202110739271.9A CN202110739271A CN113511063B CN 113511063 B CN113511063 B CN 113511063B CN 202110739271 A CN202110739271 A CN 202110739271A CN 113511063 B CN113511063 B CN 113511063B
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China
Prior art keywords
shaft
gear
transmission
main shaft
planetary
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CN202110739271.9A
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Chinese (zh)
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CN113511063A (en
Inventor
彭飞
秦川
张兴江
李江华
罗瑞田
汪国建
尹文杰
马连
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Chongqing Tsingshan Industrial Co Ltd
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Chongqing Tsingshan Industrial Co Ltd
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Priority to CN202110739271.9A priority Critical patent/CN113511063B/en
Publication of CN113511063A publication Critical patent/CN113511063A/en
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Classifications

    • 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
    • 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 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 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 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 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
    • 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 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 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 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
    • 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 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
    • 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)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

A planetary hybrid power transmission device of a motor vehicle comprises an engine and a driving motor, wherein a gear ring of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor and is connected with a hollow transmission shaft, a transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and is in sliding fit with the hollow transmission shaft, a crankshaft of the engine is connected with a planet carrier of the planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, a driving friction component of the clutch is connected with the planet carrier, a driven friction component is connected with the transmission main shaft, a planet wheel of the planetary gear mechanism is arranged between the gear ring and a sun gear, a sun gear shaft of the sun gear is sleeved on the input shaft in a hollow mode to form the concentric shaft, a sun gear shaft is connected with a brake, a driving friction component of the brake is fixed in a planetary hybrid power transmission device box body, and a driven friction component is connected with the sun gear shaft, and an output shaft and the transmission main shaft are both positioned on the same axis, and a transmission auxiliary shaft is arranged in parallel with the output shaft.

Description

Planetary hybrid power transmission device for motor vehicle
Technical Field
The invention relates to the field of hybrid electric vehicles, in particular to a planetary hybrid power transmission device of a motor vehicle.
Background
At present, most hybrid electric vehicles adopt a transmission device of oil-electricity hybrid power, and most transmission devices of oil-electricity hybrid power adopt a double-motor structure, namely, the oil-electricity hybrid power transmission device comprises an engine for obtaining power from fuel oil and a driving motor running by means of electric power, a generator is further added, the generator utilizes the power generated by the running of the motor vehicle to provide electric energy for the motor vehicle, and after the engine is stopped, the motor vehicle is driven by the driving motor to run, so that the exhaust emission of the motor vehicle is reduced, and the environment is protected. The connection and control between the engine, the generator, and the drive motor have a direct influence on the running performance of the hybrid vehicle.
Patent publication US 20210053434 A1, hybrid and motor drive transmission for an electric power system and method of operating the same, discloses a transmission for a power system comprising a first electric motor EM1, a second electric motor EM2, a single planetary gear train PG and a reduction gear train. The transmission is provided with a brake B1 and two clutches C1 and C2, can realize a two-gear motor driving mode, and meets the low-speed high-torque and high-speed use requirements of motor driving. In the hybrid drive process, an input power split and fixed ratio mode is employed to achieve efficient operation of the electric power system. However, the technical scheme in the patent adopts a plurality of clutches, brakes and planetary mechanisms to mutually cooperate to realize hybrid power driving, the pure electric drive gear and the fuel oil drive gear are few, the hybrid mode and the realized function are single, and the hybrid mode is used for vehicles with rich functions and environmental requirements, cannot more effectively optimize the fuel economy and is not beneficial to richer economic power distribution.
Disclosure of Invention
Aiming at the corresponding defects of the prior art, the invention provides the planetary hybrid power transmission device of the motor vehicle, which utilizes a planetary gear mechanism to split the power of an engine and a driving motor, improves the quantity of pure electric gears and fuel oil driving gears, is used for vehicles with rich functional and environmental requirements, can more effectively optimize the fuel economy and is beneficial to richer economic power distribution.
The invention aims at realizing the following scheme that the planetary hybrid power transmission device of the motor vehicle comprises an engine and a driving motor, wherein a gear ring of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor and is connected with a hollow transmission shaft, a transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and is in sliding fit with the hollow transmission shaft, a crankshaft of the engine is connected with a planet carrier of the planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, a driving friction component of the clutch is connected with the planet carrier, a driven friction component is connected with the transmission main shaft, a planet wheel of the planetary gear mechanism is arranged between the gear ring and a sun wheel, a sun wheel shaft of the sun wheel is sleeved on the input shaft in an empty mode to form a concentric shaft, the sun wheel shaft is connected with a brake, the driving friction component of the brake is fixedly arranged in a box body of the planetary hybrid power transmission device, and the driven friction component is connected with the sun wheel shaft, an output shaft and the input shaft and the transmission main shaft are all positioned on the same axis, and a transmission auxiliary shaft is arranged in parallel with the output shaft;
A first gear is circumferentially fixed on the hollow transmission shaft, a third gear is sleeved on the transmission main shaft, and a first synchronizer is arranged between the first gear and the third gear and circumferentially fixed on the transmission main shaft;
a fifth gear is sleeved on the upper part of the output shaft, a third synchronizer is arranged between the third gear and the fifth gear and circumferentially fixed on the output shaft, a left gear ring of the third synchronizer is circumferentially fixed on the transmission main shaft, and a seventh gear is circumferentially fixed on the output shaft;
The second gear and the fourth gear are circumferentially fixed on the transmission auxiliary shaft, a sixth gear and an eighth gear are arranged on the transmission auxiliary shaft in an empty sleeve manner, and a second synchronizer is arranged between the sixth gear and the eighth gear and circumferentially fixed on the transmission auxiliary shaft;
the first gear is meshed with the second gear, the third gear is meshed with the fourth gear, the fifth gear is meshed with the sixth gear, and the seventh gear is meshed with the eighth gear.
A motor shaft of a generator is sleeved on the input shaft in a hollow mode and is connected with the sun gear shaft.
By adopting the scheme, the gear ring of the planetary gear mechanism is fixedly arranged in the rotor of the driving motor and is connected with the hollow transmission shaft, the transmission main shaft penetrates through the hollow transmission shaft to form a concentric shaft and is in sliding fit with the hollow transmission shaft, the crankshaft of the engine is connected with the planet carrier of the planetary gear mechanism through an input shaft, the planet carrier is connected with the transmission main shaft through a clutch, the driving friction component of the clutch is connected with the planet carrier, the driven friction component is connected with the transmission main shaft, the planet wheel of the planetary gear mechanism is arranged between the gear ring and the sun gear, the sun gear shaft of the sun gear is sleeved on the input shaft in an empty way to form the concentric shaft, the sun gear shaft is connected with a brake, the driving friction component of the brake is fixed in the planetary hybrid power transmission device box body, the driven friction component is connected with the sun gear shaft, the output shaft and the input shaft and the transmission main shaft are all positioned on the same axis, and the transmission auxiliary shaft is arranged in parallel to the output shaft, and the power of the engine and the driving motor is split by the planetary gear mechanism, so that the quantity of pure driving gears and fuel driving gears is improved, vehicles with rich functional and environmental requirements can be used, the economic and economic distribution of fuel can be more effectively optimized.
The motor shaft of a generator is sleeved on the input shaft in an empty mode and connected with the sun gear shaft, and the generator is used for generating electricity by utilizing power transmitted by the sun gear shaft.
The advantages of the invention are as follows:
1. According to the technical scheme, the two motors can realize the idle speed power generation function, and the hybrid power function selection mode is richer.
2. According to the technical scheme, when the driving motor can compensate fuel power driving, power interruption caused by gear switching is avoided, so that the automobile has better comfort and power performance.
3. The invention has simple structure, definite purpose of the participating functional components and low cost, and is beneficial to the integration and matching of the hybrid power system vehicle;
4. The technical scheme of the invention has good expansibility, can realize more reasonable modularization and platform development, and can adapt to the requirements of more vehicle types;
5. the technical scheme of the invention can realize the requirements of a power transmission system with multiple gears of an engine and a motor, and can select a driving motor with smaller torque requirement.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 2, a planetary hybrid transmission device of a motor vehicle comprises an engine 1 and a driving motor 2, wherein a gear ring X3 of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor 2 and is connected with a hollow transmission shaft Z5, a transmission main shaft Z2 penetrates through the hollow transmission shaft Z5 to form a concentric shaft and is in sliding fit with the hollow transmission shaft Z5, a crankshaft of the engine 1 is connected with a planet carrier X4 of the planetary gear mechanism through an input shaft Z1, the planet carrier X4 is connected with the transmission main shaft Z2 through a clutch C1, a driving friction component of the clutch C1 is connected with the planet carrier X4, a driven friction component is connected with the transmission main shaft Z2, a planet wheel X2 of the planetary gear mechanism is arranged between the gear ring X3 and the sun wheel X1, a sun wheel X6 of the sun wheel X1 is sleeved on the input shaft Z1 to form a concentric shaft, the sun wheel X6 is connected with a brake B1, a driving friction component of the brake B1 is fixed in a planetary hybrid transmission device box, and a driven friction component is connected with the output shaft X6, and the sun wheel X4 is connected with the sun wheel X1, and the sun wheel X6 is arranged on the same axis Z2, and the sun wheel X2 is arranged in parallel with the transmission main shaft Z2;
A first gear G1 is circumferentially fixed on the hollow transmission shaft Z5, a third gear G3 is sleeved on the transmission main shaft Z2, and a first synchronizer T1 is arranged between the first gear G1 and the third gear G3 and circumferentially fixed on the transmission main shaft Z2;
A fifth gear G5 is sleeved on the upper part of the output shaft Z4, a third synchronizer T3 is arranged between the third gear G3 and the fifth gear G5 and is circumferentially fixed on the output shaft Z4, a left gear ring of the third synchronizer T3 is circumferentially fixed on a transmission main shaft Z2, and a seventh gear G7 is circumferentially fixed on the output shaft Z4;
The second gear G2 and the fourth gear G4 are circumferentially fixed on the transmission auxiliary shaft Z3, a sixth gear G6 and an eighth gear G8 are sleeved on the transmission auxiliary shaft Z3, and a second synchronizer T2 is circumferentially fixed on the transmission auxiliary shaft Z3 between the sixth gear G6 and the eighth gear G8;
The first gear G1 is meshed with the second gear G2, the third gear G3 is meshed with the fourth gear G4, the fifth gear G5 is meshed with the sixth gear G6, and the seventh gear G7 is meshed with the eighth gear G8.
In this embodiment, a motor shaft of a generator 3 is connected to a sun gear shaft X6 on an input shaft Z1 for generating power by using the power of the engine 1.
The input shaft Z1, the transmission main shaft Z2, the transmission auxiliary shaft Z3, the output shaft Z4 and the hollow transmission shaft Z5 are all supported in the planetary hybrid power transmission device box body through bearings.
The operation mode of the hybrid electric vehicle adopting the scheme is as follows:
Pure engine mode:
the power of the engine 1 is matched with each other through the clutch C1, the brake B1, the first synchronizer T1, the second synchronizer T2 and the third synchronizer T3, so that 9 driving gears comprising one direct driving gear can be realized, and the AMT automatic transmission function is realized.
Pure electric mode:
the power of the driving motor 2 is matched with each other through the first synchronizer T1, the second synchronizer T2 and the third synchronizer T3, 4 pure electric driving gears can be realized, and gear selection can be performed according to requirements such as motor states in the driving process.
Hybrid drive mode:
The power of the engine 1 and the power of the driving motor 2 are matched with each other through the clutch C1, the brake B1, the first synchronizer T1, the second synchronizer T2 and the third synchronizer T3, 9 fuel driving gears and 4 pure electric driving gears comprising one direct driving gear can be realized, in the driving process, the power of the driving motor 2 can assist the power of the engine 1 to realize power interruption-free gear shifting, and the power is more sufficient, and meanwhile, the gear shifting has better comfort and smoothness.
Idle mode:
the clutch C1, the brake B1 and the first synchronizer T1 cooperate with each other to achieve selection of two idle gears, and if the generator 3 is not provided, the power of the engine 1 can cause the drive motor 2 to generate electricity through the two idle gears.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the invention, and those skilled in the art will appreciate that the modifications made to the invention fall within the scope of the invention without departing from the spirit of the invention.

Claims (2)

1. A planetary hybrid power transmission device of a motor vehicle comprises an engine (1) and a driving motor (2), and is characterized in that a gear ring (X3) of a planetary gear mechanism is fixedly arranged in a rotor of the driving motor (2) and is connected with a hollow transmission shaft (Z5), a transmission main shaft (Z2) passes through the hollow transmission shaft (Z5) to form a concentric shaft and is in sliding fit with the hollow transmission shaft (Z5), a crankshaft of the engine (1) is connected with a planet carrier (X4) of the planetary gear mechanism through an input shaft (Z1), the planet carrier (X4) is connected with the transmission main shaft (Z2) through a clutch (C1), a driving friction component of the clutch (C1) is connected with the planet carrier (X4), a driven friction component is connected with the transmission main shaft (Z2), the planet wheel (X2) of the planetary gear mechanism is arranged between the gear ring (X3) and the sun wheel (X1), a sun wheel (X6) of the sun wheel (X1) is sleeved on an input shaft (Z1) in a sliding mode to form a concentric shaft, the same shaft (X6) is connected with a brake main shaft (Z1), the brake main shaft (Z1) is connected with the same shaft (Z1), the brake main shaft is connected with the brake main shaft (Z1) in a friction component, a transmission auxiliary shaft (Z3) is arranged in parallel with the output shaft (Z4);
A first gear (G1) is circumferentially fixed on the hollow transmission shaft (Z5), a third gear (G3) is arranged on the transmission main shaft (Z2) in a sleeved mode, and a first synchronizer (T1) is arranged between the first gear (G1) and the third gear (G3) and circumferentially fixed on the transmission main shaft (Z2);
A fifth gear (G5) is sleeved above the output shaft (Z4), a third synchronizer (T3) is arranged between the third gear (G3) and the fifth gear (G5) and is circumferentially fixed on the output shaft (Z4), a left gear ring of the third synchronizer (T3) is circumferentially fixed on a transmission main shaft (Z2), and a seventh gear (G7) is circumferentially fixed on the output shaft (Z4);
a second gear (G2) and a fourth gear (G4) are circumferentially fixed on the transmission auxiliary shaft (Z3), a sixth gear (G6) and an eighth gear (G8) are arranged on the transmission auxiliary shaft (Z3) in a sleeved mode, and a second synchronizer (T2) is circumferentially fixed on the transmission auxiliary shaft (Z3) between the sixth gear (G6) and the eighth gear (G8);
The first gear (G1) is meshed with the second gear (G2), the third gear (G3) is meshed with the fourth gear (G4), the fifth gear (G5) is meshed with the sixth gear (G6), and the seventh gear (G7) is meshed with the eighth gear (G8).
2. The planetary hybrid transmission according to claim 1, characterized in that the motor shaft of a generator (3) is connected to the sun gear shaft (X6) over the input shaft (Z1).
CN202110739271.9A 2021-06-30 2021-06-30 Planetary hybrid transmission for motor vehicles Active CN113511063B (en)

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Publication number Priority date Publication date Assignee Title
CN114987191B (en) * 2022-05-20 2025-12-05 宁波圣龙新能源汽车动力有限公司 A hybrid drive device
CN115853975B (en) * 2022-11-29 2026-04-17 中国第一汽车股份有限公司 Dual-clutch transmission drive system and its control method and vehicle

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CN215360911U (en) * 2021-06-30 2021-12-31 重庆青山工业有限责任公司 Planetary Hybrid Transmissions for Motor Vehicles

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JP3803493B2 (en) * 1998-06-23 2006-08-02 本田技研工業株式会社 Hybrid vehicle
JP4207908B2 (en) * 2005-03-15 2009-01-14 トヨタ自動車株式会社 Hybrid drive device
CN104343903B (en) * 2014-10-09 2017-02-01 重庆青山工业有限责任公司 Two-gear planetary gear transmission for full electric vehicle
FR3029854B1 (en) * 2014-12-12 2016-12-16 Ifp Energies Now POWER PLANT FOR DRIVING A MOTOR VEHICLE WITH AN EPICYCLOIDAL DOUBLE-AXIS SPEED VARIATION TRANSMISSION DEVICE AND ESPECIALLY A POWER PLANT FOR A HYBRID-TYPE VEHICLE.
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