CN213082901U - Electric drive and hybrid power transmission device based on compound planetary gear train and vehicle provided with same - Google Patents

Electric drive and hybrid power transmission device based on compound planetary gear train and vehicle provided with same Download PDF

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Publication number
CN213082901U
CN213082901U CN202021016058.2U CN202021016058U CN213082901U CN 213082901 U CN213082901 U CN 213082901U CN 202021016058 U CN202021016058 U CN 202021016058U CN 213082901 U CN213082901 U CN 213082901U
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gear
gear train
clutch
compound
motor
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Chinese (zh)
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韩尔樑
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Rongbo Technology Co.,Ltd.
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Suzhou Rongbo Power Technology Co ltd
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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
    • B60K6/44—Series-parallel 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 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
    • B60K6/50—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)
  • Arrangement Of Transmissions (AREA)

Abstract

The utility model discloses an electric drive and hybrid transmission and installation device's vehicle based on compound planetary gear train, including a compound planetary gear train and a simple planetary gear train drive mechanism, a generator and driving motor, a plurality of clutches and optional direction clutch, controller, motor inverter, external battery package and external power like the engine that have two ring gears. The small gear ring of the composite gear train is connected with the motor through a fixed speed ratio, and the large gear ring is connected with the output shaft through a fixed speed ratio. The compound planet wheel carrier is connected with a gear ring of the simple gear train. The external power input shaft can be connected with a simple planet carrier, a compound gear train sun gear and a motor connecting gear through a clutch. The device can provide three electric drive speed ratio gears, one series and three continuous speed change and 9 hybrid power operation modes with fixed speed ratios. The utility model is suitable for an electric drive and hybrid coupling transmission of electronic and hybrid vehicle, including ship and amphibious vehicle, aircraft and engineering machine tool.

Description

Electric drive and hybrid power transmission device based on compound planetary gear train and vehicle provided with same
Technical Field
The utility model relates to a vehicle electric drive and power transmission device, especially a hybrid power transmission system based on single motor drive, multiple power reposition of redundant personnel mode of compound planetary gear train that is used for increasing journey, inserting electricity and conventional hybrid vehicle.
Background
The pure electric vehicle is clean and environment-friendly, is beneficial to promoting the development and utilization of renewable energy and meeting the strategic demands of energy diversification, has low daily use and maintenance cost and government policy support, and is worthy of great popularization. Pure electric vehicles are far less popular than traditional fuel vehicles because of the limitations of charging facilities. The extended range electric vehicle such as a general vehicle, namely a Chevrolet VOLT, can be operated purely electrically after being charged daily, and can be operated in a power split hybrid power mode when not being charged, so that the oil consumption is superior to that of a traditional fuel vehicle. Hundreds of thousands of U.S. users have demonstrated that the vast majority of their miles are purely electric and are a technology worth promoting. Prius of Toyota automobile adopts an input power split hybrid mode, and achieves very good oil consumption and market scale. VOLT and Prius show that the power split hybrid power technology based on the planetary gear train has excellent performance, and the newer generation technology can promote further promotion and development of the range-extended electric automobile and the hybrid electric automobile. Prius' battery pack is small and low cost compared to Volt, and her large market suggests that low cost and low fuel consumption are important guides for market customers.
VOLT and Prius adopt a power split design of a double motor and two motor inverters based on a planetary gear train, and the cost is higher than that of a single motor power split technology.
Prius has only one continuously variable mode, i.e., the input-power-split mode. This mode is efficient when the vehicle speed is low, but at higher speeds the generator speed is too high and the energy loss is large; especially in the pure electric mode, the generator speed reaches the limit very fast, must start the engine, produces emission and oil consumption.
The 2MH hybrid system of a general purpose vehicle has two power split modes and four fixed speed ratio gears. 2MH indicates that fixed ratio gears and multiple power split modes may improve power and fuel economy.
In order to meet the demand for clean pure electric travel and the requirements of the market on cost and oil consumption, a utility model is needed, which has a single motor low cost and a plurality of power split modes and a fixed speed ratio gear position.
Disclosure of Invention
The utility model discloses promote and improve the demand to above technique, provide an electric drive and hybrid transmission based on single motor compound planetary gear train, have pure electric drive, a series connection charging and a plurality of continuous variable speed series-parallel connection mode of a plurality of fixed speed ratios, be suitable for low, well, high speed of a motor vehicle and 9 fixed speed ratio keep off the position. Not only is the system cost reduced, but also the system volume is reduced, and the oil consumption economy of the system is obviously improved.
In order to realize the purpose, the utility model discloses a technical scheme is as follows: the utility model provides an electric drive and hybrid transmission based on compound planetary gear train, includes motor, power output shaft and gearbox body, is connected with the external power input shaft by external power drive on the gearbox body, and its structural feature is: the direction-selectable clutch and the brake are fixedly connected to the gearbox body, and are respectively and rotationally connected to the external power input shaft;
a compound planetary gear train and a simple planetary gear train are arranged in the gearbox body;
the compound planetary gear train comprises a compound gear train planet carrier, a sun planetary gear, a compound gear train small gear ring outer gear, a compound gear train sun gear, a compound gear train gear ring planetary gear, a compound gear train large gear ring and a compound gear train output gear, the braking end of the direction-selectable clutch can be respectively connected with the compound gear train sun gear, the compound gear train planet carrier through a third clutch and the first clutch, the sun planetary gear and the compound gear train gear ring are connected to the compound gear train planet carrier, the sun planetary gear is respectively meshed with the compound gear train sun gear and the compound gear train small gear ring outer gear, the compound gear train large gear ring is respectively meshed with the compound gear train gear ring planetary gear and the compound gear train output gear, and the compound gear train output gear drives the power output shaft to rotate;
the simple planetary gear train comprises a simple gear train planet carrier, a simple gear train composite gear train sun gear and a simple gear train gear ring, the brake can brake the simple gear train composite gear train sun gear, the simple gear train planet carrier is connected with an external power input shaft through a fifth clutch, the simple gear train planet carrier is connected with the composite gear train planet carrier through a second clutch, and the simple gear train composite gear train sun gear is meshed with a small planetary gear on the simple gear train planet carrier;
the external power input shaft is connected with an electric speed change mechanism through a fourth clutch, the electric speed change mechanism is driven by the power of a motor, and the electric speed change mechanism is in power connection with an external gear of a small gear ring of the compound gear train through a linkage device;
the direction-selectable clutch, the brake, the first clutch, the second clutch, the third clutch, the fourth clutch and the fifth clutch are all controlled by the controller. The selectable one-way clutch can realize unidirectional locking braking, bidirectional locking braking and bidirectional separation under the control of the controller, wherein the unidirectional locking braking refers to the counterclockwise rotation (facing the engine 30) of the compound gear train sun gear 7 connected with the locking device, the bidirectional locking braking refers to the counterclockwise and clockwise rotation of the locking compound gear train sun gear 7, and the bidirectional separation refers to the counterclockwise and clockwise rotation of the compound gear train sun gear 7.
The electric speed change mechanism comprises a motor connecting gear connected to the external power input shaft through a fourth clutch, the motor connecting gear is meshed with a motor speed ratio gear, an electric driving gear is connected to a power shaft of a motor rotor of the motor, and the electric driving gear is meshed with the motor speed ratio gear.
The linkage device comprises a linkage shaft, one end of the linkage shaft is connected to the motor speed ratio gear, and the other end of the linkage shaft is connected to the composite gear train small gear ring outer gear.
The electric speed change mechanism comprises a motor connecting gear connected to an external power input shaft through a fourth clutch, a linkage shaft is arranged in the gearbox body, a motor speed ratio gear connected with the motor and meshed with the gear is connected to the linkage shaft, the linkage device comprises a linkage gear, a motor rotor of the motor is connected with a compound gear train small gear ring outer gear through a power shaft, and the compound gear train small gear ring outer gear is in power connection with the motor speed ratio gear through the linkage gear.
The external power input shaft is connected with external power through a torsional damper.
The motor stator of the motor is connected with a motor inverter, and the motor inverter is connected with the controller 27 through an electric signal; the controller and the motor inverter are electrically connected with an external energy storage.
A vehicle is provided with the compound planetary gear train-based electric drive and hybrid transmission device of the above-described structure.
The combined control of the clutches, the direction-selectable clutches and the brake by the controller can enable the system to enter a hybrid power transmission mode of pure electric drive, series charging, power-split continuous speed change and fixed speed ratio gears.
The pure electric driving mode is provided with three different motors and an output shaft for fixing pure electric speed ratios. When the direction-selectable clutch is bidirectionally locked, the pure electric speed ratio is 1 gear;
when the third clutch is combined, the pure electric speed ratio is 2 gears;
and the pure electric speed ratio is 3 gears when the second clutch is combined and the brake is bidirectionally locked.
The series charging mode is realized by combining a fourth clutch, and can work when the vehicle stops or slides.
The power split continuous variable speed working modes are three. When the first clutch is combined, a continuous speed change series-parallel mode 1 and an output power split mode are adopted;
when the second clutch and the fifth clutch are combined, a continuous speed change series-parallel mode 2 and an input power split mode are adopted;
when the brake is bidirectionally locked and the fifth clutch is combined, a continuous speed change series-parallel mode 3 and an input power split mode are adopted.
The fixed speed ratio gear has 10 parallel hybrid power and mechanical transmission speed ratios. The fourth clutch is combined, and the gear 1 is adopted when the direction-selectable clutch is bidirectionally locked;
the second clutch and the fifth clutch are combined, and the selectable one-way clutch is in the 2-gear position during braking;
and when the second clutch is combined and the speed of the motor is zero, the speed is 3 gear. At the moment, theoretically, one hundred percent of external power mechanical energy is transmitted to the output shaft, so that the external power mechanical energy is called as a mechanical speed ratio;
the gear 4 is adopted when the fifth clutch is combined, and the direction selectable clutch and the brake are bidirectionally locked;
the first clutch, the third clutch and the fifth clutch are in 5-gear when combined;
the third clutch is combined, and the brake is in 6 gears during bidirectional locking;
the second clutch and the fifth clutch are combined, and the speed of the motor is zero, namely 7 gears, and the mechanical speed ratio is realized at the moment;
when the third clutch and the fourth clutch are combined, the gear is 9;
the second clutch and the fourth clutch are combined, and the reverse gear is realized when the brake is locked bidirectionally.
The device provides pure electric drive or reversing with three fixed speed ratios when external power stops working or is not connected; the controller selects a speed ratio and controls according to the vehicle state, so that the pure electric dynamic property of the vehicle is improved, and the motor speed and energy loss of the vehicle at high speed are reduced; all clutches do not need oil pressure to work in combination when the electric first gear runs at daily medium speed and low speed, energy consumption of an oil pump hydraulic system can be saved, and therefore electric driving efficiency is improved.
The device provides a series charging and three continuous variable speed series-parallel working modes and 9 fixed speed ratio parallel hybrid power gears by combining external power; the controller selects and controls according to the vehicle state, realizes electric drive, engine drive, series charging, parallel charging and electric power assisted hybrid power drive, deceleration braking energy recovery, parallel-serial mode input power shunting and output power shunting drive, simultaneously carries out charging and discharging on an energy storage system, carries out mountain descending under full power and carries out engine braking when the battery power is limited, improves the dynamic property and the safety of a vehicle power assembly, and reduces the energy consumption; the three continuous speed change series-parallel connection modes are respectively suitable for selecting the optimal working condition of the engine at low speed, medium speed and high speed and providing the power comfort of continuous speed change; fixed ratio shifts can be accomplished by adjusting the engine speed in a continuously variable mode and then shifting, which is more comfortable, reduces friction losses in the clutch and the energy design requirements for shifting, while improving transient combustion control of the engine and thus reducing polluting emissions.
The engine can be started through a series mode, and the controller can also select the proper clutches with 9 fixed speed ratios to control the differential torque of the clutches to start; the controller can also select the proper clutch with 9 fixed speed ratios to control the differential torque of the clutch and the engine torque to drive the vehicle to start or reverse when required.
The utility model discloses technical scheme has following advantage:
A. the utility model discloses a pure electric drive arrangement of many speed ratios promotes the dynamic property of motor during the low-speed, reduces the rotational speed noise and the energy loss of motor when high-speed, does not need outside power like the engine.
B. The utility model provides a series connection charges and the driven series-parallel connection mode of three continuous variable speed, and the parallelly connected hybrid of 9 fixed velocity ratios keep off the position, be superior to the range-extending electric motor car and the fuel hybrid product of international market mainstream, high speed has been improved, the high-efficient operating mode of low-speed engine and fuel economy, steady engine speed change has promoted the transient state combustion control that drives the travelling comfort and improved the engine simultaneously and consequently reduce pollution emission, 9 fixed velocity ratios have promoted the dynamic nature that high horsepower driven and the economic nature of long-distance traveling.
C. The utility model discloses integrated motor and motor inverter have saved the cost than the double motor products of the same kind of international market mainstream.
D. The utility model discloses can select suitable fender position and mode to gain comfortable engine braking performance and avoid the brake heat damage, promote the brake fail safe nature when mountain and electric power are restricted under full electricity.
E. The utility model discloses a synchronous engine speed of series-parallel connection mode can be selected in fixed speed ratio gear shifting, has reduced the clutch and has rubbed the harm and increased the reliability.
F. The utility model discloses reduced energy loss, but the direction-selecting clutch does not need the oil pressure to be in locking state promptly and gets into pure electric 1 drive when keeping off, and its frictional energy loss is less than the ordinary stopper of system and at the energy loss of separation state, has further promoted high-speed operating efficiency.
Drawings
While the drawings facilitate the description of the embodiments, as follows, it will be apparent that various changes may be made in the embodiments to achieve similar or partial results;
FIG. 1 is a schematic structural diagram of an electric drive and hybrid power transmission device based on a compound planetary gear train of the present invention;
FIG. 2 is a schematic structural diagram of another embodiment of the present invention;
the labels in the figure are as follows:
1-motor rotor, 2-external energy storage, 3-torsion shock absorber, 4-compound gear train sun planet wheel, 5-compound gear train small gear ring external gear, 6-compound gear train ring planet wheel, 7-compound gear train sun wheel, 8-compound gear train planet carrier, 9-compound gear train large gear ring, 10-compound gear train output gear, 11-first clutch, 12-second clutch, 13-third clutch, 14-fourth clutch, 15-fifth clutch, 16-simple gear train ring, 17-simple gear train compound gear train sun wheel, 18-simple gear train planet carrier, 19-motor ratio gear, 20-motor gear, 21-direction-selectable clutch, 22-brake, 25-power output shaft, 26-motor inverter, 27-controller, 28-compound planet wheel sun wheel 29-simple planetary gear train, 30-external power, 31-external power input shaft, 33-motor stator and 34-motor connecting gear.
Detailed Description
The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings. It is to be understood that the described embodiments are part of the invention and are not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the present invention provides an electric drive and hybrid power transmission system based on compound planetary gear train, which comprises an electric motor, a power output shaft 25 and a transmission case, wherein the transmission case is connected with an external power input shaft 31 driven by external power 30, the transmission case is fixedly connected with the above selectable direction clutch 21 and brake 22, and the selectable direction clutch 21 and brake 22 are respectively connected to the external power input shaft 31 in a rotating manner; a compound planetary gear train and a simple planetary gear train are arranged in the gearbox body; the compound planetary gear train comprises a compound gear train planet carrier 8, a sun planetary gear 4, a compound gear train small-gear-ring external gear 5, a compound gear train sun gear 7, a compound gear train gear-ring planetary gear 6, a compound gear train large-gear-ring 9 and a compound gear train output gear 10, the braking end of the direction-selectable clutch 21 can be respectively connected with the sun gear 7 of the compound gear train, the planet carrier 8 of the compound gear train through a third clutch 13 and the first clutch 11, the compound gear train gear ring planetary gear 6 is connected on a compound gear train planet carrier 8, the sun planetary gear 4 is respectively meshed with a compound gear train sun gear 7 and a compound gear train small gear ring outer gear 5, the compound gear train large gear ring 9 is respectively meshed with the compound gear train gear ring planet gear 6 and the compound gear train output gear 10, the compound gear train output gear 10 drives the power output shaft 25 to rotate through a speed reducing mechanism; the simple planetary gear train comprises a simple gear train planet carrier 18, a simple gear train compound gear train sun gear 17 and a simple gear train gear ring 16, the brake 22 can brake the simple gear train compound gear train sun gear 17, the simple gear train planet carrier 18 is connected with an external power input shaft 31 through a fifth clutch 15, the simple gear train planet carrier 18 is connected with a compound gear train planet carrier 8 through a second clutch 12, and the simple gear train compound gear train sun gear 17 is meshed with a small planetary gear on the simple gear train planet carrier 18; the external power input shaft 31 is connected with an electric speed change mechanism through a fourth clutch 14, the electric speed change mechanism is driven by the power of a motor, and the electric speed change mechanism is in power connection with the small gear ring external gear 5 of the compound gear train through a linkage device; the direction selectable clutch 21, the brake 22, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, and the fifth clutch 15 are controlled by a controller 27.
Referring to fig. 1, in the present embodiment, the electric speed changing mechanism includes a motor connecting gear 34 connected to the external power input shaft 31 through a fourth clutch 14, the motor connecting gear 34 is engaged with a motor speed ratio gear 19, an electric gear is connected to a power shaft of a motor rotor 1 of the electric motor, the electric gear is engaged with the motor speed ratio gear 19, the linkage device includes a linkage shaft, one end of the linkage shaft is connected to the motor speed ratio gear 19, and the other end of the linkage shaft is connected to the compound gear train small-ring outer gear 5.
The external power input shaft 31 is in power connection with the external power 30 via the torsional vibration damper 3. The motor stator 33 of the motor is connected with a motor inverter 26, and the motor inverter is connected with the controller 27 through an electric signal; the controller 27 and the motor inverter 26 are electrically connected to the external energy storage 2.
The utility model also provides a vehicle, the electric drive and the hybrid transmission based on compound planetary gear train of above-mentioned structure are installed to the vehicle.
Referring to fig. 2, the present invention provides another embodiment, which has the same basic structure as the first embodiment, but is different from the first embodiment, the electric speed change mechanism comprises a motor connecting gear 34 connected with the external power input shaft 31 through a fourth clutch 14, a linkage shaft is arranged in the gearbox body, a motor speed ratio gear 19 meshed with the motor connecting gear 34 is connected on the linkage shaft, the linkage device comprises a linkage gear, a motor rotor 1 of the motor is connected with a small gear ring outer gear 5 of the compound gear train through a power shaft, the external gear of the small gear ring of the compound gear train is in power connection with the motor speed ratio gear 19 through a linkage gear, namely, the transmission route of the electric speed change mechanism is slightly changed, the direct purpose is that the motor is arranged closer to the compound gear train small-ring outer gear 5, the transmission route is shorter and the structure is more compact.
The utility model can make the system enter various hybrid power transmission modes of pure electric drive, series charging, power split continuous speed change and fixed speed ratio gear by controlling the states of each clutch, brake and clutch with selectable direction through the controller 27; according to the operating instruction of a driver, the energy and thermal management state of an energy storage system, the vehicle speed, the HVAC (heating ventilation and air conditioning) state and the like, an optimal mode is selected to enable the vehicle to efficiently run, accelerate, decelerate, recover energy and brake and safely brake an engine, and meanwhile, the energy of the energy storage system is optimally managed through the electricity generated by a motor.
In the utility model, the external power 31 can be an engine on a power vehicle, the specific structure of the torsional damper 3 is the prior art, and the torsional damper mainly comprises an elastic element, a damping element and the like, wherein the spring element is used for reducing the torsional rigidity of the head end of the transmission system, thereby reducing the natural frequency of a certain order of the torsional system of the transmission system, changing the natural vibration mode of the system and leading the system to avoid the excitation caused by the excitation of the main harmonic quantity of the engine torque; the damping element serves to dissipate the vibration energy efficiently, and its structure will not be described in detail here. The specific structure of the selectable direction clutch 21 is also known in the art, and may be a SOWC (selectable direction clutch) manufactured by a company, and the specific structure thereof is known to those skilled in the art and will not be described in detail herein. The external energy storage 2 may be a prior art electrical storage device such as a battery.
The following is a detailed description of the power transmission of the typical pure electric and hybrid power operation modes and operating conditions of the present invention, and under the control of the controller 27, the methods of output, pure electric drive, and series charging using the regulation speed ratio of the electric drive and hybrid power transmission system based on the compound planetary gear train are as follows:
TABLE-ELECTRIC DRIVE AND HYBRID TYPE OPERATION MODE
Figure DEST_PATH_RE-DEST_PATH_IMAGE001
Note: c1, C2, C3, C4, and C5 represent the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, and the fifth clutch 15, L1 represents the selectable direction clutch 21, L2 represents the brake 22, and state x represents the engaged and locked state.
1. Series charging mode of operation: the fourth clutch 14 is in neutral gear when locked, under the control of the controller 27, the first clutch 11, the second clutch 12, the third clutch 13, the fifth clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, so that the process of charging the motor from the external power input shaft 31 is realized, and the external power 30 engine keeps a fixed transmission speed ratio through the torsional vibration damper 3, the external power input shaft 31, the fourth clutch 14, the motor connecting gear 34, the motor speed ratio gear 19, the motor gear 20 and a rotor of the motor; the rotating speed of the engine can be adjusted to the optimal working condition point to generate electricity by controlling the torque of the motor; the engine may also be started by this mode.
2. Pure electric drive mode: the power direction is reversible when pure electric drive, and the motor can convert the electric energy of energy storage device 2 into mechanical energy to drive the vehicle, also can convert the kinetic energy of vehicle into electric energy to charge energy storage device 2 when the motor brakes and decelerates simultaneously.
The pure electric drive working mode has three gears of a pure electric drive EV1, a pure electric drive EV2 and a pure electric drive EV3, the three modes of the pure electric drive are meant by EV1, EV2 and EV3, and under the control action of the controller 27, the states of the selectable one-way clutch 21, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15 and the brake 22 are controlled to realize the three pure electric drive modes, and the three pure electric drive modes are described in detail below.
Pure electric drive EV 1: the selectable one-way clutch 21 is combined, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15 and the brake 22 are in a separated or non-braking state, a rotor of the motor is connected with the motor gear 20, the external meshing motor speed ratio gear 19, the meshing compound gear train small gear ring external gear 5 and rotates the compound gear train small gear ring, and the fixed transmission speed ratio (Nm/Nr 0) of the motor and the compound gear train small gear ring external gear 5 is obviously determined by the gear number of the components set forth herein; the compound gear train large gear ring 9 is connected with the compound gear train output gear 10 and drives the power output shaft 25 to drive the vehicle through a speed reducing mechanism, and the fixed transmission speed ratio (Nr 1/No) of the compound gear train large gear ring 9 and the output shaft 25 is obviously determined by the number of the part gears stated herein.
The direction selectable clutch 21 locks the compound gear train sun gear 7, and the speed Ns1 is zero; the speed ratio (Nr 0/Nr 1) of the compound gear train small gear ring external gear 5 and the compound gear train large gear ring 9 is obviously determined by the design parameters of the compound planetary gear train 28 when the speed of the compound gear train sun gear 7 is zero; the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0), (Nr 0/Nr 1), and (Nr 1/No). By controlling the magnitude and direction of the motor torque, acceleration of the vehicle in forward or reverse can be driven.
The (Nm/Nr 0) and (Nr 1/No) speed ratios remain unchanged in the various operating modes, as will be referred to in the description of the subsequent modes, and when the (Nr 0/Nr 1) speed ratio relationship is determined, the transmission speed ratio (Nm/No) of the motor and the output shaft is the product of (Nm/Nr 0), (Nr 0/Nr 1), and (Nr 1/No), and the description will not be repeated.
Pure electric drive EV 2: the third clutch 13 is engaged, and the first clutch 11, the second clutch 12, the fourth clutch 14 and the fifth clutch are engagedThe clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, when the third clutch 13 is locked, the large gear ring 9 of the compound planetary gear train 28 and the small gear ring external gear 5 of the compound gear train rotate together,（Nr0/Nr1）=1. The transmission speed ratio (Nm/No) of the motor and the output shaft is the product of the speed ratios (Nm/Nr 0) and (Nr 1/No).
Pure electric drive EV 3: the second clutch 12 and the brake 22 are combined, the first clutch 11, the third clutch 13, the fourth clutch 14, the fifth clutch 15 and the selectable one-way clutch 21 are in a separated or non-braking state, when the third clutch 13 and the brake 22 are locked, the compound gear train planet carrier 8 does not rotate, and the rotation speed ratio of the large gear ring 9 of the compound planetary gear train 28 and the small gear ring outer gear 5 of the compound gear train is a negative value; the compound gear train small gear ring rotates the compound gear train large gear ring 9 through the compound planetary gear train 28, and the speed ratio (Nr 0/Nr 1) can be determined by design parameters.
The EV3 electric launch post-reverse gear GR may be selected if engine reverse is desired.
3. Power split continuous variable speed mode of operation:
the power split continuously variable transmission mode is an operation mode in which the external power 30 and the motor can drive power output together, and three modes of power split continuously variable transmission are realized by controlling states of the selectable one-way clutch 21, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15, and the brake 22 by the control action of the controller 27, and the three modes of power split continuously variable transmission are described in detail below.
Power split continuously variable transmission EVT 1: the first clutch 11 is combined, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, and the motor drives a small gear ring external gear of the compound gear train; the compound gear train large gear ring 9 drives a vehicle, the external power 30 engine drives the compound gear train sun gear 7, the first clutch 11 is connected with the compound gear train sun gear 7 and the external power input shaft 31 in a locking mode, is connected with the torsion damper 3 and the external power 30 engine, and drives the power output shaft 25 to drive the vehicle through the speed reducing mechanism. For convenience, the following description will be considered with respect to the external power input shaft 31 and the external power 30 engine.
Output power splitting: by controlling the magnitude and the direction of the motor torque, the rotating speed of the engine can be controlled and the optimal point of the combustion working condition can be selected; the rotor of the motor drives the vehicle together with the engine when rotating in the forward direction, and generates and feeds back energy to the motor inverter 26 and the energy storage system 2 when rotating in the negative direction and driving the vehicle.
By controlling the magnitude and direction of the motor torque, it is also possible to control the optimal point of engine braking and simultaneously generate electricity.
Power split continuously variable transmission EVT 2: the second clutch 12 and the fifth clutch 15 are combined, the first clutch 11, the third clutch 13, the fourth clutch 14, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, the external power 30 is used for driving the compound gear train planet carrier 8 by the engine, the second clutch 12 is connected with the compound gear train planet carrier 8, the simple gear train gear ring 16 and the simple gear train planet carrier 18 in a locking and locking manner, and the external power 30 is connected through the fifth clutch 15 for the engine to rotate at the same speed; the motor drives the small-ring gear outer gear of the compound gear train; the compound gear train large gear ring 9 drives a power output shaft 25 through a speed reducing mechanism so as to drive the vehicle.
Input power splitting: the rotating speed of the engine can be adjusted and the optimal point of the combustion working condition can be selected by controlling the magnitude and the direction of the motor torque; when the rotor of the motor rotates in the forward direction, the engine drives the vehicle and the motor generates electricity to charge the motor inverter 26 and the energy storage system 2; when the engine is adjusted to decelerate and the rotor of the motor rotates in the negative direction, the output power of the engine is reduced, and the power of the motor is increased to keep the same driving power.
By controlling the magnitude and direction of the motor torque, it is also possible to control the optimal point of braking of the engine and generate electricity at the same time.
Power split continuously variable transmission EVT 3: the fifth clutch 15 is combined, the brake 22 brakes, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14 and the selectable one-way clutch 21 are in a separated or non-braking state, and the brake 22 locks the sun gear 17 of the simple gear train compound gear train; external power 30 engine drives simple gear train planet carrier 18: the fifth clutch 15 is connected with the simple gear train planet carrier 18 and the external power 30 engine; the motor drives the small-ring gear outer gear of the compound gear train; the compound gear train large gear ring 9 drives a power output shaft 25 through a speed reducing mechanism so as to drive the vehicle.
Input power splitting: the rotating speed of the engine can be adjusted and the optimal point of the combustion working condition can be selected by controlling the magnitude and the direction of the motor torque; when the rotor of the motor rotates in the forward direction, the engine drives the vehicle and the motor generates electricity to charge the motor inverter 26 and the energy storage system 2; when the engine is adjusted to decelerate and the rotor of the motor rotates in a negative direction, the output power of the engine is reduced, and the power of the motor is increased to keep the same driving power.
By controlling the magnitude and direction of the motor torque, it is also possible to control the optimal point of braking of the engine and generate electricity at the same time.
4. Fixed mechanical ratio mode of operation:
the fixed mechanical speed ratio operation mode refers to that the external power 30 and the motor can drive power output together, and the states of the selectable one-way clutch 21, the first clutch 11, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15 and the brake 22 are controlled through the control action of the controller 27 to realize the speed ratio change of input and output, that is, the switching of nine gears of the fixed mechanical speed ratio and the state of gradient locking are realized, and the specific process of realizing the fixed mechanical speed ratio operation mode is described in detail below.
Fixed mechanical ratio G1 gear: the fourth clutch 14 is combined, the one-way clutch 21 can be selected to be locked, the first clutch 11, the second clutch 12, the third clutch 13, the fifth clutch 15 and the brake 22 are in a separated or non-braking state, the engine external power input shaft 31 is connected with a motor connecting gear 34, a meshing motor speed ratio gear 19 and a meshing motor gear 20 through the fourth clutch 14 to be connected with a rotor of a motor, the transmission speed ratio (Ne/Nr 0) of the engine and the compound gear train small gear ring and external gear 5 is determined, and the motor is connected with a compound gear train small gear ring and external gear (Nm/Nr 0) in parallel; the direction selectable clutch 21 locks the compound gear train sun gear 7, and the speed Ns1 is zero; the compound gear train large gear ring 9 drives a vehicle (Nr 1/No); the speed ratio (Nr 0/Nr 1) of the compound gear train small gear ring external gear 5 and the compound gear train large gear ring 9 is obviously determined by the design parameters of the compound planetary gear train 28 when the speed of the compound gear train sun gear 7 is zero; the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratios (Ne/Nr 0), (Nr 0/Nr 1) and (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0), (Nr 0/Nr 1) and (Nr 1/No);
the engine and the motor are driven by parallel hybrid power, the motor torque control can realize parallel driving or power generation when the engine is driven, and the engine needs corresponding adjusting torque to keep the vehicle driving torque; the request for a change in torque of the vehicle can also be satisfied by a change in torque of the electric machine when the engine torque is constant.
Fixed mechanical ratio G2 gear: the second clutch 12 and the fifth clutch 15 are combined, the one-way clutch 21 can be selected for locking, the first clutch 11, the third clutch 13, the fourth clutch 14 and the brake 22 are in a separated or non-braking state, and the external power 30 engine drives the compound gear train planet carrier 8 through the fifth clutch 15 and the second clutch 12; the direction selectable clutch 21 locks the compound gear train sun gear 7, and the speed Ns1 is zero; the compound gear train large gear ring 9 drives a vehicle; the speed ratio of the compound gear train planet carrier 8 and the compound gear train large gear ring 9 (Nc 1/Nr 1), the speed ratio of the compound gear train small gear ring external gear 5 and the compound gear train large gear ring 9 (Nr 0/Nr 1) is obviously determined by the design parameters of the compound planetary gear train 28 when the speed of the compound gear train sun gear 7 is zero; the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratio (Nc 1/Nr 1) and (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0), (Nr 0/Nr 1), and (Nr 1/No).
Fixed mechanical ratio G3 gear: the first clutch 11 is combined, the second clutch 12, the third clutch 13, the fourth clutch 14, the fifth clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, and the engine external power 30 drives the compound gear train sun gear 7 through the first clutch 11; the rotor of the motor is connected with a motor gear 20, an external meshing motor speed ratio gear 19, a compound gear train small gear ring external gear 5 and rotates a compound gear train small gear ring 9 to drive a vehicle, when the speed of the motor controlling small gear ring is zero, only mechanical energy is transmitted, and the speed ratio (Ns 1/Nr 1) of a compound gear train sun gear and the compound gear train large gear ring 9 is obvious; the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratio (Ns 1/Nr 1), (Ns 1/Nr 1) and (Nr 1/No) of the compound gear train sun gear and the compound gear train large ring gear 9.
Fixed mechanical ratio G4 gear: the fifth clutch 15 is combined, the selectable one-way clutch 21 and the brake 22 are locked and braked, the first clutch 11, the second clutch 12, the third clutch 13 and the fourth clutch 14 are in a separated or non-braked state, the direction selectable clutch 21 locks the compound gear train sun gear 7, the speed Ns1 of the compound gear train sun gear is zero, and the speed ratio of the compound gear train planet carrier 8 and the compound gear train large ring gear 9 (Nc 1/Nr 1), the speed ratio of the compound gear train small ring gear outer gear 5 and the compound gear train large ring gear 9 (Nr 0/Nr 1) is obviously determined by the design parameters of the compound planetary gear train 28 when the speed of the compound gear train sun gear 7 is zero; the brake 22 locks the simple gear train compound gear train sun gear 17, the speed Ns2 of the simple gear train compound gear train sun gear is zero, and the speed ratio (Nc 2/Nr 2) = (Ne/Nr 2) of the simple gear train planet carrier 18 and the simple gear train ring gear 16 is obviously determined by the design parameters of the simple planetary gear train 29; the fifth clutch 15 lock-connects the simple gear train carrier 18 and the engine external power 30, and the carrier 18 speed is equal to the engine speed, so the speed ratio (Nc 2/Nr 2) = (Ne/Nr 2); the simple-train ring gear 16 is connected to the compound-train carrier 8, (Nc 2/Nr 2) = (Ne/Nr 2) = (Ne/Nc 1); the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratios (Ne/Nc 1), (Nc 1/Nr 1), and (Nr 0/Nr 1); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0), (Nr 0/Nr 1), and (Nr 1/No).
Fixed mechanical ratio G5 gear: the first clutch 11 and the third clutch 13 are combined, the second clutch 12, the fourth clutch 14, the fifth clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, and the large gear ring 9, the small gear ring external gear 5 and the compound gear train sun gear 7 of the compound planetary gear train 28 rotate together when the third clutch 13 is combined; the first clutch 11 is locked and connected with the compound gear train sun gear 7 and the engine external power 30, so that the transmission speed ratio (Ne/No) of the engine and the power output shaft is a speed ratio (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0) and (Nr 1/No).
Fixed mechanical ratio G6 gear: the first clutch 11, the fifth clutch 15 are combined, the brake 22 is braked, the second clutch 12, the third clutch 13, the fourth clutch 14 and the selectable one-way clutch 21 are in a separated or non-braked state, the brake 22 locks the simple gear train compound gear train sun gear 17, the speed Ns2 of the simple gear train compound gear train sun gear is zero, and the speed ratio of the simple gear train planet carrier 18 and the simple gear train ring gear 16 (Nc 2/Nr 2) can be obviously determined; the fifth clutch 15 is connected with the simple gear train planet carrier 18 through lock and the external power 30 of the engine with equal speed Nc2= Ne, the compound gear train sun gear 7 is connected with the external power input shaft 31 through the first clutch 11 with equal speed of the engine with Ns1= Ne; the compound gear train carrier 8 is connected with the simple gear train ring gear 16 speed Nc1= Nr2, and the speed ratio (Nc 2/Nr 2) = (Ne/Nr 2) = (Ne/Nc 1) is obviously determined by the simple planetary gear train 29 when the simple gear train compound gear train sun gear 17 speed is zero; the speed ratio (Nc 1/Nr 1) of the compound gear train planet carrier 8 and the compound gear train large gear ring 9, the speed ratio (Nr 0/Nr 1) of the compound gear train small gear ring external gear 5 and the compound gear train large gear ring 9 can be obviously determined, and the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratios (Ne/Nc 1), (Nc 1/Nr 1) and (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0), (Nr 0/Nr 1), and (Nr 1/No).
Fixed mechanical ratio G7 gear: the second clutch 12 and the fifth clutch 15 are combined, the first clutch 11, the third clutch 13, the fourth clutch 14, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, the second clutch 12 is locked, the fifth clutch 15 is locked and connected with the simple gear train planet carrier 18 and the external power 30 of the engine, the rotating speed Nr2 of the simple gear train ring gear 16 is equal to the engine speed Ne and the speed Nc1 of the compound gear train planet carrier 8;
when the speed of the motor-controlled compound gear train small gear ring external gear is zero, only mechanical energy is used for transmission, and the speed ratio (Nc 1/Nr 1) of the compound gear train planet carrier 8 and the compound gear train large gear ring 9 is obvious; the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratio (Nc 1/Nr 1) and (Nr 1/No) of the compound gear train sun gear and the compound gear train large ring gear 9.
Fixed mechanical ratio G8 gear: the third clutch 13 and the fourth clutch 14 are combined, the first clutch 11, the second clutch 12, the fifth clutch 15, the selectable one-way clutch 21 and the brake 22 are in a separated or non-braking state, and when the third clutch 13 is combined, the large gear ring 9 of the compound planetary gear train 28, the small gear ring outer gear 5 of the compound gear train and the sun gear 7 of the compound gear train rotate together; the engine external power input shaft 31 is connected with a motor connecting gear 34, a meshing motor speed ratio gear 19 and a meshing motor gear 20 through a fourth clutch 14 and is connected with a rotor of a motor, and the transmission speed ratio (Ne/Nr 0) of the engine and the compound gear train small gear ring external gear 5 is determined, so that the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratio (Ne/Nr 0) and (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0) and (Nr 1/No).
Fixed mechanical ratio GR keeps off: the second clutch 12 and the fourth clutch 14 are combined, the brake 22 brakes, the first clutch 11, the third clutch 13, the fifth clutch 15 and the selectable one-way clutch 21 are in a separated or non-braking state, the second clutch 12, the fourth clutch 14 and the brake 22 are locked, the brake 22 locks the sun gear 17 of the simple gear train composite gear train, and the speed of the planet carrier 8 of the composite gear train is zero; the engine external power input shaft 31 is connected with a motor connecting gear 34, a meshing motor speed ratio gear 19 and a meshing motor gear 20 through a fourth clutch 14 and is connected with a rotor of a motor, and the transmission speed ratio (Ne/Nr 0) of the engine and the compound gear train small gear ring external gear 5 is determined, so that the transmission speed ratio (Ne/No) of the engine and the power output shaft is the product of the speed ratio (Ne/Nr 0) and (Nr 1/No); the transmission speed ratio (Nm/No) of the motor and the power output shaft is the product of the speed ratios (Nm/Nr 0) and (Nr 1/No).
The gradient lock C3, the third clutch 13 is engaged, the selectable one-way clutch 21 is locked, the first clutch 11, the second clutch 12, the fourth clutch 14, the fifth clutch 15 and the brake 22 are in a separated or non-braking state, and the selectable direction clutch 21, the third clutch 13, the large gear ring 9 of the compound planetary gear train 28, the small gear ring external gear 5 of the compound gear train and the compound gear train sun gear 7 rotate together; the direction selectable clutch 21 locks the compound gear train sun gear 7 and the large gear ring 9 of the compound planetary gear train 28 at zero speed, so that the output shaft speed is zero and the vehicle is prevented from sliding.
In the above description of the present invention, Ne represents the rotation speed of the engine (external power 30), No represents the rotation speed of the power output shaft 25, Nr0 represents the rotation speed of the compound train small ring gear 5, and Nm represents the rotation speed of the motor rotor 1 of the motor; ns1 represents the speed of the compound-train sun gear 7, Nr1 represents the speed of the compound-train large ring gear 9, Nc1 represents the speed of the compound-train carrier 8, Nr2 represents the speed of the simple-train ring gear 16, Nc2 represents the speed of the simple-train carrier 18, and Ns2 represents the speed of the simple-train compound-train sun gear 17.
The utility model discloses do not receive the restriction of above-mentioned embodiment, at this technical field personnel, based on the utility model discloses the equivalent change and the part replacement of last concrete structure are all in the protection scope of the utility model.

Claims (7)

1. The utility model provides an electric drive and hybrid transmission based on compound planetary gear train, includes motor, power output shaft and gearbox body, is connected with external power input shaft (31) by external power (30) drive on the gearbox body, characterized by: the gearbox body is fixedly connected with a direction-selectable clutch (21) and a brake (22), and the direction-selectable clutch (21) and the brake (22) are respectively and rotationally connected to the external power input shaft (31);
a compound planetary gear train and a simple planetary gear train are arranged in the gearbox body;
compound planetary gear train includes compound gear train planet carrier (8), sun planet wheel (4), compound gear train little ring gear external gear (5), compound gear train sun gear (7), compound gear train ring gear planet wheel (6), compound gear train big ring gear (9) and compound gear train output gear (10), the brake end of selectable direction clutch (21) can be connected with compound gear train sun gear (7) respectively, be connected with compound gear train planet carrier (8) through third clutch (13), be connected with first clutch (11), sun planet wheel (4) and compound gear train ring gear planet wheel (6) are connected on compound gear train planet carrier (8), sun planet wheel (4) mesh with compound gear train sun gear (7), compound gear train little ring gear external gear (5) respectively, compound gear train big ring gear (9) mesh with compound gear train planet wheel ring gear (6) respectively, The composite gear train output gear (10) is meshed, and the composite gear train output gear (10) drives the power output shaft to rotate through the speed reducing mechanism;
the simple planetary gear train comprises a simple gear train planet carrier (18), a simple gear train composite gear train sun gear (17) and a simple gear train gear ring (16), the brake (22) can brake the simple gear train composite gear train sun gear (17), the simple gear train planet carrier (18) is connected with an external power input shaft (31) through a fifth clutch (15), the simple gear train planet carrier (18) is connected with a composite gear train planet carrier (8) through a second clutch (12), and the simple gear train composite gear train sun gear (17) is meshed with a small planetary gear on the simple gear train planet carrier (18);
the external power input shaft (31) is connected with an electric speed change mechanism through a fourth clutch (14), the electric speed change mechanism is driven by the power of a motor, and the electric speed change mechanism is in power connection with a small gear ring external gear (5) of the compound gear train through a linkage device;
the direction-selectable clutch (21), the brake (22), the first clutch (11), the second clutch (12), the third clutch (13), the fourth clutch (14) and the fifth clutch (15) are all controlled by a controller (27).
2. An electric drive and hybrid transmission based on compound planetary gear train as claimed in claim 1, wherein: the electric speed change mechanism comprises a motor connecting gear (34) connected to the external power input shaft (31) through a fourth clutch (14), the motor connecting gear (34) is meshed with a motor speed ratio gear (19), an electric driving gear is connected to a power shaft of a motor rotor (1) of the motor, and the electric driving gear is meshed with the motor speed ratio gear (19).
3. An electric drive and hybrid transmission based on compound planetary gear train as claimed in claim 2, wherein: the linkage device comprises a linkage shaft, one end of the linkage shaft is connected with a motor speed ratio gear (19), and the other end of the linkage shaft is meshed with a small gear ring external gear (5) of the compound gear train through a linkage gear.
4. An electric drive and hybrid transmission based on compound planetary gear train as claimed in claim 1, wherein: the electric speed change mechanism comprises a motor connecting gear (34) connected onto an external power input shaft (31) through a fourth clutch (14), a linkage shaft is arranged in a gearbox body, a motor speed ratio gear (19) meshed with the motor connecting gear (34) is connected onto the linkage shaft, the linkage device comprises a linkage gear, a motor rotor (1) of the motor is connected with a compound gear train small gear ring outer gear (5) through a power shaft, and the compound gear train small gear ring outer gear is in power connection with the motor speed ratio gear (19) through the linkage gear.
5. An electric drive and hybrid drive transmission based on compound planetary gear train as claimed in any of claims 1-4, characterized in that: the external power input shaft (31) is in power connection with the external power (30) through the torsional damper (3).
6. An electric drive and hybrid drive transmission based on compound planetary gear train as claimed in any of claims 1-4, characterized in that: a motor stator (33) of the motor is connected with a motor inverter (26), and the motor inverter is connected with a controller (27) through an electric signal; the controller (27) and the motor inverter (26) are electrically connected to an external energy store (2).
7. A vehicle equipped with a compound planetary gear train-based electric drive and hybrid transmission as claimed in any one of claims 1 to 6.
CN202021016058.2U 2020-04-17 2020-06-05 Electric drive and hybrid power transmission device based on compound planetary gear train and vehicle provided with same Active CN213082901U (en)

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