WO2024087600A1 - Ensemble de transmission de puissance hybride, système d'entraînement électrique hybride et véhicule - Google Patents

Ensemble de transmission de puissance hybride, système d'entraînement électrique hybride et véhicule Download PDF

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Publication number
WO2024087600A1
WO2024087600A1 PCT/CN2023/095712 CN2023095712W WO2024087600A1 WO 2024087600 A1 WO2024087600 A1 WO 2024087600A1 CN 2023095712 W CN2023095712 W CN 2023095712W WO 2024087600 A1 WO2024087600 A1 WO 2024087600A1
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WIPO (PCT)
Prior art keywords
gear
shaft
assembly
shaft assembly
actuator
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PCT/CN2023/095712
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English (en)
Chinese (zh)
Inventor
唐琛
李曼丽
雷君
薛龙
曹大顾
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东风汽车集团股份有限公司
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Publication of WO2024087600A1 publication Critical patent/WO2024087600A1/fr

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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
    • B60K6/24—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
    • B60K6/36—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
    • 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
    • B60K6/40—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 assembly or relative disposition of components
    • 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

Definitions

  • the present invention belongs to the technical field of hybrid power transmissions, and in particular relates to a hybrid power transmission mechanism assembly, a hybrid power electric drive system and a vehicle.
  • Hybrid vehicle drive technology is the core stage of the development process of new energy vehicles. Improving fuel economy and reducing emissions are important issues facing hybrid technology.
  • the mainstream hybrid electric drive products on the market are still mostly dual-motor single-speed hybrids, which can achieve pure electric, series/parking power generation and parallel/engine direct drive and other working modes, and are suitable for HEV and PHEV models at the same time.
  • multi-speed hybrid engines have become a development trend. Due to the increase in the number of gears, the structure of the entire power transmission device has become complicated, the structure of the entire power transmission device has become huge, and the entire axial size will also increase.
  • the present disclosure provides a hybrid transmission mechanism assembly, a hybrid electric drive system and a vehicle, which can reduce the assembly volume, improve the mounting performance and meet a more flexible layout.
  • a hybrid transmission mechanism assembly comprising an engine input shaft assembly, a generator, an ICE intermediate shaft assembly, a differential shaft assembly, an EV intermediate shaft assembly, a drive motor input shaft assembly and a drive motor that are transmission-connected; wherein the engine input shaft assembly is coaxially arranged with the generator, and the drive motor input shaft assembly is coaxially arranged with the drive motor; the generator and the drive motor are located on the same side; the installation height of the engine input shaft assembly is located between the drive motor and the differential shaft assembly, and the projection of the engine input shaft assembly on the vertical plane has an overlapping part with the projection of the drive motor and the differential shaft assembly on the vertical plane; the engine input shaft assembly comprises a planetary row, at least one actuator, at least one support bearing, at least one gear gear and an inner ring shaft; the inner ring shaft is sleeved outside the planetary row, and the inner ring shaft is transmission-connected with the inner ring of the planetary row; the at least one actuator, the
  • a hybrid electric drive system including: a housing assembly, provided with a shaft gear cavity and a motor cavity; the above-mentioned hybrid power transmission mechanism assembly, in which the engine input shaft assembly, the drive motor input shaft assembly, the ICE intermediate shaft assembly, the EV intermediate shaft assembly and the differential shaft assembly are all installed in the shaft gear cavity, and the generator and the drive motor are both installed in the motor cavity; a shift mechanism assembly, installed in the shaft gear cavity, and acting on the actuator.
  • a vehicle comprising the above-mentioned hybrid electric drive system.
  • FIG1 is a schematic structural diagram of a hybrid transmission mechanism assembly according to some embodiments of the present disclosure.
  • FIG2 is a schematic structural diagram of the hybrid power transmission mechanism assembly of FIG1 at a certain viewing angle
  • FIG3 is a schematic structural diagram of the hybrid power transmission mechanism assembly of FIG1 from another perspective
  • FIG4 is a full cross-sectional view of the engine input shaft assembly in the hybrid transmission mechanism assembly of FIG1 ;
  • FIG5 is a schematic structural diagram of an internal lubrication passage of the engine input shaft assembly of FIG4 ;
  • FIG6 is a schematic structural diagram of the inner ring gear shaft in the engine input shaft assembly of FIG4 ;
  • FIG7 is a full cross-sectional view of the inner gear ring shaft of FIG6;
  • FIG8 is an overall structural diagram of a hybrid electric drive system according to some embodiments of the present disclosure.
  • FIG9 is a schematic diagram of the structure of the hybrid electric drive system of FIG8 after the end cover is removed;
  • FIG10 is a schematic diagram of the structure of the hybrid electric drive system of FIG8 after the right housing is removed.
  • FIG. 11 is a schematic structural diagram of the middle plate of the hybrid electric drive system of FIG. 8 .
  • 600-hybrid power transmission assembly 610-engine input shaft assembly; 620-generator, 621-generator rotor, 622-second hollow cavity; 630-ICE intermediate shaft assembly, 631-ICE intermediate shaft, 632-first ICE intermediate gear, 633-second ICE intermediate gear; 640-differential shaft assembly; 650-EV intermediate shaft assembly, 651-EV intermediate shaft, 652-first EV intermediate gear, 653-second EV intermediate gear; 660-drive motor input shaft assembly, 661-input shaft, 662-transmission gear; 670-drive motor, 671-rotor of drive motor.
  • 200-inner gear ring shaft 201-inner hole; 210-sleeve portion; 220-cover portion, 221-gear sleeve portion, 222-baffle portion, 223-inner spline; 230-first mounting position; 240-assembly position, 241-inner hole wall; 250-second mounting position; 260-limiting structure, 261-circlip groove, 262-end face, 263-convex edge, 264-hole shoulder; 270-oil guide hole; 280-oil guide groove.
  • 10-oil guide pipe 11-oil outlet hole, 12-oil outlet; 20-oil guide piece; 30-bushing; 40-actuator, 41-gear hub, 42- Combining teeth, S1-first actuator, S2-second actuator; 50-first gear, 51-gear ring, 52-connecting part; 60-second gear; 70-circlip; 80-sleeve.
  • FIG. 1 is a schematic diagram of the structure of a hybrid transmission mechanism assembly according to some embodiments of the present disclosure
  • FIG. 2 is a schematic diagram of the structure of the hybrid transmission mechanism assembly of FIG. 1 at a certain viewing angle
  • FIG. 3 is a schematic diagram of the structure of the hybrid transmission mechanism assembly of FIG. 1 at another viewing angle.
  • a hybrid transmission mechanism assembly 600 is provided, as shown in FIGS. 1 to 3 , which may include an engine input shaft assembly 610, a generator 620, an ICE intermediate shaft assembly 630, a differential shaft assembly 640, an EV intermediate shaft assembly 650, a drive motor input shaft assembly 660, and a drive motor 670.
  • 610 is connected to the engine by transmission, and the engine input shaft assembly 610 is provided with a planetary gear 100, an actuator and a gear gear, so that gear shifting can be realized. That is, the hybrid power transmission mechanism assembly 600 can realize the hybrid power input of the engine + motor, and the multi-gear of the hybrid engine.
  • the positions of the above-mentioned assemblies are arranged; the engine input shaft assembly 610 is coaxially arranged with the generator 620, that is, the rotor 621 of the generator 620 is directly connected to the input shaft (sun gear shaft 110, planetary carrier 120 or inner gear ring shaft 200) of the engine input shaft assembly 610 by transmission, for example, by key connection, gear connection, etc.
  • the drive motor input shaft assembly 660 is coaxially arranged with the drive motor 670, that is, the rotor 671 of the drive motor 670 is directly connected to the input shaft 661 of the drive motor input shaft assembly 660 by transmission, for example, by key connection, gear connection, etc., and a transmission gear 662 is integrally formed on the input shaft 661 of the drive motor input shaft assembly 660.
  • the generator 620 and the drive motor 670 are located on the same side.
  • FIG2 and FIG3 show the structure of the hybrid transmission mechanism assembly 600 when the generator 620 and the drive motor 670 are located on the left side of the engine input shaft assembly 610.
  • the motor assembly generator 620 and the drive motor 670
  • the shaft gear assembly engine input shaft assembly 610, ICE intermediate shaft assembly 630, differential shaft assembly 640, EV intermediate shaft assembly 650, drive motor input shaft assembly 660
  • the motor is usually cooled by oil injection, and the working voltage of the motor is relatively high
  • the bearings of the shaft gear assembly are usually actively lubricated
  • the voltage of the electronic components such as the shift motor and the sensor is relatively low.
  • the scheme of arranging the motor coaxially with the input shaft can reduce the one-way size of the hybrid transmission mechanism assembly 600.
  • the axis center position of the drive motor 670 is the highest, the overall height of the ICE intermediate shaft assembly 630 and the differential shaft assembly 640 is the lowest, the installation height of the engine input shaft assembly 610 is located between the drive motor 670 and the differential shaft assembly 640, and the projection of the engine input shaft assembly 610 on the vertical plane overlaps with the projection of the drive motor 670 and the differential shaft assembly 640 on the vertical plane. Therefore, the axis center of the engine input shaft assembly 610, the axis center of the drive motor 670 and the axis center of the differential shaft assembly 640 are distributed in a triangular shape, as shown in FIG1.
  • the triangular distribution structure can not only reduce the one-way size of the hybrid transmission mechanism assembly 600, but also has a stable structure.
  • the triangular distribution can provide installation space for the ICE intermediate shaft assembly 630 and the EV intermediate shaft assembly 650, and can further reduce the size of the hybrid transmission mechanism assembly 600 on a plane perpendicular to the axis of the engine input shaft.
  • the axis of the EV intermediate shaft assembly 650 is located in a triangular area surrounded by the axis of the engine input shaft assembly 610, the drive motor 670, and the differential shaft assembly 640.
  • the axis of the ICE intermediate shaft assembly 630 is located below the axis line connecting the engine input shaft assembly 610 and the differential shaft assembly 640, and the axis of the ICE intermediate shaft assembly 630 is at the lowest height.
  • the engine input shaft assembly 610 is used to connect the engine, and the gear change of the engine is also achieved through the engine input shaft assembly 610.
  • FIG4 is a full cross-sectional view of the engine input shaft assembly in the hybrid transmission mechanism assembly of FIG1.
  • the engine input shaft assembly 610 may include a planetary gear 100, at least one actuator, at least one support bearing, at least one gear gear and an inner ring shaft 200; the inner ring shaft 200 is sleeved outside the planetary gear 100, and the inner ring shaft 200 is transmission-connected with the inner ring 150 of the planetary gear 100, serving as a part of the planetary gear 100; at least one actuator, at least one support bearing, and at least one gear gear are all arranged on the inner ring shaft 200.
  • the transmission function of the planetary gear 100, the installation of the actuator, the installation of the gear gear and the necessary axial limiting function can be integrated at the same time, thereby greatly improving the integration of the hybrid transmission mechanism assembly 600, reducing the functional volume of the hybrid transmission mechanism assembly 600 in the axial direction, and making it have more flexible layout and mounting performance.
  • the shift mechanism acts on the actuator, which changes the torque transmission path so that gears of different diameters participate in the power transmission, thereby achieving gear shifting.
  • the torque of the engine input shaft assembly 610 is transmitted to the EV intermediate shaft assembly 650 and the ICE intermediate shaft assembly 630 by the gear gears.
  • the EV intermediate shaft assembly 650 may include an EV intermediate shaft 651 and a first EV intermediate gear 652 and a second EV intermediate gear 653 mounted on the EV intermediate shaft 651.
  • the diameter of the first EV intermediate gear 652 is larger than that of the second EV intermediate gear 653.
  • the second EV intermediate gear 653 is relatively small, the second EV intermediate gear 653 and the EV intermediate shaft 651 can be integrally formed, and the first EV intermediate gear 652 is mounted on the EV intermediate shaft 651, and the two are connected by a key.
  • the EV intermediate shaft assembly 650 is connected to the engine input shaft assembly 610 and the drive motor input shaft assembly 660 through the first EV intermediate gear 652, specifically, the first EV intermediate gear 652 is meshed with the first gear 50 and the drive gear 662 of the drive motor input shaft assembly 660; the EV intermediate shaft assembly 650 is connected to the differential shaft assembly 640 through the second EV intermediate gear 653.
  • the ICE intermediate shaft assembly 630 may include an ICE intermediate shaft 631 and a first ICE intermediate gear 632 and a second ICE intermediate gear 633 mounted on the ICE intermediate shaft 631.
  • the diameter of the first ICE intermediate gear 632 is larger than that of the second ICE intermediate gear 633. Since the second ICE intermediate gear 633 is smaller, the second ICE intermediate gear 633 and the ICE intermediate shaft 631 may be integrally formed, and the first ICE intermediate gear 632 is sleeved on the ICE intermediate shaft 631, and the two are connected by a key.
  • the ICE intermediate shaft assembly 630 is transmission-connected to the engine input shaft assembly 610 through the first ICE intermediate gear 632, specifically, the first ICE intermediate gear 632 is meshed with the second gear 60; the ICE intermediate shaft assembly 630 is transmission-connected to the differential shaft assembly 640 through the second ICE intermediate gear 633.
  • the engine input shaft assembly 610 is the most important shaft-tooth assembly in the hybrid transmission mechanism assembly 600, which realizes the functions of engine power input, energy recovery, and gear shifting.
  • the inner ring gear shaft 200 in the engine input shaft assembly 610 serves as a supporting skeleton to realize the installation and fixation of the planetary gear 100, at least one actuator, at least one support bearing, and at least one gear gear.
  • the engine input shaft assembly 610 is provided with only one planetary gear 100, as shown in FIG. 4, and the planetary gear 100 may include a sun gear shaft 110, a planet carrier 120, a sun gear 130, a planetary gear 140, and an inner ring gear 150.
  • the sun gear 130 is mounted on the sun gear shaft 110, or is integrally formed with the sun gear shaft 110.
  • the planetary gear 140 is mounted on the planetary gear 140 shaft 123 of the planetary carrier 120 through the planetary gear 140 bearing 40 .
  • the sun gear 130 , the planetary gear 140 and the inner ring gear 150 are arranged and meshed in sequence from the inside to the outside.
  • the inner ring gear 150 is transmission-connected to the inner ring gear shaft 200 .
  • the sun gear shaft 110 or the planetary carrier shaft 121 of the planetary gear row 100 is connected to the engine to realize the engine power input.
  • the sun gear shaft 110 or the planetary carrier shaft 121 of the planetary gear row 100 is connected to the generator 620 to realize the motor power input.
  • the inner gear ring shaft 200 is sleeved on the planetary carrier shaft 121 or the sun gear shaft 110 of the planetary gear row 100 for engine power input.
  • the inner gear ring shaft 200 and the planetary carrier shaft 121 are used as outputs, and the inner gear ring shaft 200 is correspondingly sleeved on the planetary carrier shaft 121, and the inner gear ring shaft 200 or the planetary carrier shaft 121 is provided with a connection structure for transmission connection with the generator 620.
  • the planetary gear row 100 uses the planetary carrier shaft 121 as input, the inner ring gear shaft 200 and the sun gear shaft 110 are used as outputs, and the inner ring gear shaft 200 is correspondingly sleeved on the sun gear shaft 110, and the sun gear shaft 110 or the inner ring gear shaft 200 is provided with a connection structure for transmission connection with the generator 620.
  • the planetary gear row 100 uses the planetary carrier shaft 121 to input engine power, and the inner ring gear shaft 200 and the sun gear shaft 110 output engine power.
  • the inner ring gear shaft 200 is sleeved on the sun gear shaft 110.
  • the inner gear ring shaft 200 may include a sleeve portion 210 and a cover portion 220.
  • the sleeve portion 210 is a sleeve structure that can be mounted on a shaft, such as the sun gear shaft 110 or the planetary carrier shaft 121 of the planetary gear 100.
  • the sleeve portion 210 has a relatively long axial dimension, and may be provided with a plurality of first mounting positions 230 for mounting the actuator 40, or a plurality of assembly positions 240 for setting the support bearing, or a plurality of second mounting positions 250 for setting the gear position.
  • the cover portion 220 is in transmission connection with the inner gear ring 150 of the planetary gear 100, and participates in the operation of the planetary gear 100 as a part of the planetary gear 100. Both the inner hole profile and the outer profile of the cover portion 220 may be used as the assembly position 240 for setting the support bearing or the second mounting position 250 for setting the gear. Therefore, by setting the inner ring gear shaft 200, the transmission function of the planetary gear 100, the installation of the actuator 40, the installation of the gear gear and the necessary axial limiting function can be integrated at the same time, thereby greatly improving the integration of the engine input shaft assembly 610, reducing the functional volume of the engine input shaft assembly 610, and making the electric drive system equipped with the engine input shaft assembly 610 have more flexible layout and mounting performance.
  • the cover portion 220 of the inner gear ring shaft 200 and the inner gear ring 150 of the planetary gear row 100 can be specifically integrally formed, welded or keyed.
  • the inner gear ring shaft 200, the planetary carrier shaft 121, and the sun gear shaft 110 need to rotate during operation, and there is a speed difference under certain working conditions, so it is necessary to install a bearing between the inner gear ring shaft 200 and the sun gear shaft 110 or the planetary carrier shaft 121, and the inner ring of the bearing is sleeved on the sun gear shaft 110 or the planetary carrier shaft 121, and the inner gear ring shaft 200 is sleeved on the outer ring of the bearing.
  • the inner gear ring shaft 200 is sleeved on the sun gear shaft 110 through two needle bearings 177b, as shown in Figure 4.
  • the inner gear ring shaft 200 may be an integral structure, that is, the sleeve portion 210 and the cover portion 220 are integrally formed by casting or machining.
  • the inner gear ring shaft 200 may also be a split structure, and the sleeve portion 210 and the cover portion 220 may be fixedly connected by welding, bonding, screwing, etc.
  • the inner gear ring shaft 200 is a one-piece structure formed by casting, and then the inner and outer surfaces are machined, and the material may be a metal material such as stainless steel and cast aluminum.
  • the cover portion 220 of the inner gear ring shaft 200 is covered on the main part of the planetary gear 100, and the sun gear 130, the planetary gear 140, and the inner gear ring 150 of the planetary gear 100 are all located in the inner hole of the cover portion 220.
  • the cover portion 220 may include a gear sleeve portion 221 and a baffle portion 222, and the inner ring of the baffle portion 222 is connected to the shaft sleeve portion 210, and the outer ring is connected to the gear sleeve portion 221.
  • the structure of the gear sleeve portion 221 is similar to that of the shaft sleeve portion 210, and both are shaft sleeve structures.
  • the gear sleeve portion 221 is transmission-connected to the inner gear ring 150 of the planetary gear 100.
  • the baffle portion 222 may be an annular flat plate, an annular spherical shell, or a three-dimensional structure composed of multiple connecting rods. The specific structural form of the baffle portion 222 is not limited in this disclosure.
  • the shaft sleeve portion 210, the baffle portion 222, and the gear sleeve portion 221 may be an integrated structure, or fixedly connected by welding, bonding, screwing, etc.
  • the gear sleeve portion 221 and the inner gear ring 150 may be an integral structure or key-connected to achieve power transmission, so that the entire inner gear ring shaft 200 can rotate together with the inner gear ring 150 of the planetary gear set 100 .
  • the gear sleeve 221 is connected to the inner gear ring 150 through a spline
  • the inner profile of the gear sleeve 221 is provided with an inner spline 223
  • the inner profile of the inner gear ring 150 is a tooth meshing with the planetary gear 140
  • the outer profile is an outer spline
  • the inner gear ring 150 is axially inserted into the inner spline 223
  • one side of the inner gear ring 150 is axially limited by the inner end face 262 of the baffle 222
  • a retaining spring groove 261 is provided on the inner spline 223 of the gear sleeve 221, and after the retaining spring 70 is installed in the retaining spring groove 261, the retaining spring 70 can axially limit the other side of the inner gear ring 150.
  • the retaining spring 70 is a detachable structure and will not affect the installation and removal of the inner gear ring 150.
  • the multiple component installation positions on the inner gear ring shaft 200 mainly include a first installation position 230 for installing the actuator 40, an assembly position 240 for setting the support bearing, and a second installation position 250 for setting the gear.
  • the actuator 40 can be a synchronizer or a clutch, and the actuator 40 can be loosely mounted on the inner gear ring shaft 200, or fixedly connected or transmission connected to the inner gear ring shaft 200.
  • the support bearing is used to install the inner gear ring shaft 200 on the housing assembly 300.
  • the gear can be a gear gear or a transmission gear that only plays a transmission role.
  • the gear can be loosely mounted on the inner gear ring shaft 200, or fixedly connected or transmission connected to the inner gear ring shaft 200.
  • other component installation positions can also be set on the inner gear ring shaft 200 according to specific circumstances, such as a component installation position for installing an oil retaining member, a component installation position for setting a sensor, etc.
  • the first installation position 230 is only arranged on the sleeve portion 210, mainly because the action of the actuator 40 requires a certain axial space, and the axial dimension of the sleeve portion 210 is larger than that of the cover portion 220, which can meet the axial space required for the action of the actuator 40; on the other hand, the sleeve portion 210 is sleeved on the sun gear shaft 110 or the planetary carrier shaft 121 of the planetary gear row 100, and the cover portion 220 is sleeved on the sun gear 130, the planetary gear 140, and the inner ring gear 150 of the planetary gear row 100.
  • the radial dimension of the sleeve portion 210 is smaller than that of the cover portion 220, which is convenient for arranging the actuator 40.
  • the function of the actuator 40 is to change the transmission ratio of the planetary gear row 100, such as engaging the inner gear ring 150 of the planetary gear row 100 with the sun gear shaft 110 for joint rotation, engaging the inner gear ring 150 with the planet carrier for joint rotation, engaging the planet carrier with the sun gear shaft 110 for joint rotation, locking the inner gear ring 150, locking the sun gear 130, locking the planet gear 140, etc.
  • the first mounting position 230 is a key connection structure, so that the actuator 40 is transmission-connected with the inner gear ring shaft 200.
  • the actuator 40 can change the movement of the inner gear ring 150, such as engaging the inner gear ring 150 with the sun gear shaft 110 or the planet carrier, or locking the inner gear ring 150.
  • the inner gear ring shaft 200 is provided with a plurality of limiting structures 260 for axial limiting, and the limiting structures 260 may be limiting bosses, limiting steps or grooves for installing retaining springs 70. If the limiting structure 260 is used to limit the bearing axially, a limiting boss, limiting step or structural end face limiting is usually selected; if the limiting structure 260 is used to limit the gear axially, and the gear is connected to the inner gear ring shaft 200 by transmission, such as a spline connection, then retaining springs 70 are usually selected for axial limiting.
  • the outer surface of the sleeve part 210 is designed as a stepped shaft, specifically, from the far planetary gear end to the near planetary gear end, the outer diameter of the sleeve part 210 increases, and each structural part is mounted on the sleeve part 210 one by one.
  • the stepped shaft itself can form a number of limiting steps for axial positioning.
  • the stepped shaft is also provided with a number of convex edges 263 for axially limiting the shaft sleeve 80, bearings, etc.
  • a limiting structure 260 for axially limiting the actuator 40 is provided on the first installation position 230 to prevent the actuator 40 from Axial relative rotation occurs between the actuator 40 and the inner gear ring shaft 200.
  • the actuator 40 and the inner gear ring shaft 200 are splined, that is, the key connection structure of the first installation position 230 adopts an external spline, and the inner ring of the gear hub 41 and/or the combined tooth 42 of the actuator 40 is provided with an internal spline.
  • the actuator 40 and the inner gear ring shaft 200 are limited by a retaining spring 70, and the corresponding limiting structure 260 is a retaining spring groove 261 provided on the external spline, and the retaining spring 70 is stuck in the retaining spring groove 261 after the gear hub 41 and/or the combined tooth 42 of the actuator 40 are installed in place.
  • first support bearing 175 and the second support bearing 176 two support bearings are provided, namely, the first support bearing 175 and the second support bearing 176.
  • the first support bearing 175 and the second support bearing 176 can adopt ball bearings, needle bearings, thrust bearings, etc. Some embodiments adopt ball bearings.
  • the number of assembly positions 240 is correspondingly two, and both the gear sleeve part 221 and the shaft sleeve part 210 are provided with assembly positions 240.
  • the first support bearing 175 and the second support bearing 176 are respectively installed on the shaft sleeve part 210 and the cover part 220.
  • the first support bearing 175 is arranged in the inner hole of the cover part 220, and the second support bearing 176 is arranged between the first actuator S1 and the second actuator S2 through the shaft sleeve 80. Since the first support bearing 175 and the second support bearing 176 mainly play the role of supporting the inner gear ring shaft 200, they can both adopt ball bearings.
  • the first support bearing 175 is axially limited by the end surface 262 of the first mounting position 230, that is, the hole shoulder 264 formed by the first mounting position 230 and the supporting position of the cover part 220; the second support bearing 176 is axially limited by the boss provided on the sleeve 80.
  • the inner ring of the first support bearing 175 and the outer ring of the second support bearing 176 are respectively interference fit with the bearing mounting holes of the housing assembly 300.
  • the support bearing and the gear work in the form of rotation, and do not need to move axially, so they can be set on the cover part 220 and/or the sleeve part 210 according to actual needs.
  • the first support bearing 175 is installed on the assembly position 240 of the gear sleeve part 221, and the second support bearing 176 is installed on the assembly position 240 of the sleeve part 210.
  • FIG6 is a schematic diagram of the structure of the inner gear ring shaft in the engine input shaft assembly of FIG4 ;
  • FIG7 is a full cross-sectional view of the inner gear ring shaft of FIG6 .
  • the assembly position 240 of the cover part 220 is the inner hole wall 241 of the gear sleeve part 221
  • the assembly position 240 of the shaft sleeve part 210 is the bare rod section
  • the first support bearing 175 is interference fit with the inner hole wall 241
  • the second support bearing 176 is interference fit with the bare rod section.
  • a limiting structure 260 for axially limiting the first support bearing 175 is provided between the assembly position 240 of the gear sleeve part 221 and the installation position of the inner gear ring 150 , and the limiting structure 260 at this place can adopt end face limiting (such as shaft shoulder limiting, boss limiting) or retaining spring limiting.
  • end face limiting such as shaft shoulder limiting, boss limiting
  • retaining spring limiting As shown in FIG. 7 , in some embodiments, a hole shoulder 264 is formed between the inner hole wall 241 of the gear sleeve portion 221 and the inner spline 223 , and the hole shoulder 264 is used to axially limit the first support bearing 175 installed on the inner hole wall 241 .
  • a sleeve 80 is provided on the assembly position 240 of the sleeve portion 210, which can compensate for the diameter difference between the second support bearing 176 and the polished rod section on the one hand, and can be used for axial positioning of surrounding structural members on the other hand.
  • the sleeve 80 is press-fitted with the corresponding polished rod section by interference fit, and the second support bearing 176 is installed on the sleeve 80 by interference fit.
  • the surrounding structural members also play a role in axial positioning of the sleeve 80.
  • the engine input shaft assembly 610 is configured to meet the engine fourth gear, specifically, the engine fourth gear is achieved through two actuators 40 and two gear gears, the two actuators 40 and the two gear gears are respectively recorded as: the first actuator S1, the second actuator S2, the first gear gear 50 and the second gear gear 60.
  • the first actuator S1 and the second actuator S2 are both synchronizers, the first gear gear 50 is a large gear ring, and the engine third gear and the engine fourth gear are achieved; the second gear gear 60 is a small gear ring, and the engine first gear and the engine second gear are achieved.
  • the inner gear ring shaft 200 is provided with two first mounting positions 230, two assembly positions 240, and two second mounting positions 250.
  • the two first mounting positions 230 are distributed at both ends of the sleeve portion 210. It should be noted that the first mounting position 230 can be used to install all components of the actuator 40, or only part of the components of the actuator 40, such as only installing the gear hub 41 of the synchronizer or the single-sided coupling gear 42.
  • the two assembly positions 240 and the two second mounting positions 250 are respectively provided on the sleeve portion 210 and the cover portion 220, as shown in FIG6.
  • the first actuator S1 and the second actuator S2 are distributed at both ends of the sleeve portion 210.
  • the first actuator S1 and the second actuator S2 can use synchronizers (single or double) or clutches as needed.
  • the first actuator S1/the second actuator S2 can be set to selectively connect the sun gear shaft 110 and the inner gear ring shaft 200, selectively connect the planet carrier shaft 121 and the inner gear ring shaft 200, and selectively connect the inner gear ring shaft 200 and the first gear gear 50 according to actual needs.
  • the ring gear shaft 200 and the second gear gear 60 may be connected.
  • the first actuator S1 adopts a synchronizer, having a gear hub 41 and combining teeth 42 on both sides.
  • the gear hub 41 of the first actuator S1 is transmission-connected to the first mounting position 230; the combining teeth 42 on one side of the first actuator S1 are fixedly connected to the first gear gear 50; the combining teeth 42 on the other side of the first actuator S1 are fixedly connected to the second gear gear 60.
  • the first actuator S1 is used to optionally connect the inner ring shaft 200 to the first gear gear 50 or the second gear gear 60.
  • the second actuator S2 also uses a synchronizer, having a gear hub 41 and coupling teeth 42 on both sides.
  • the gear hub 41 of the second actuator S2 is transmission-connected to the sun gear shaft 110 of the planetary gear row 100, the coupling teeth 42 on one side of the second actuator S2 are transmission-connected to the shaft sleeve 210, and the coupling teeth 42 on the other side of the second actuator S2 are fixedly connected to the housing assembly 300.
  • the second actuator S2 is used to connect the sun gear shaft 110 to the inner gear ring shaft 200 or the housing assembly 300 to achieve different speed ratio outputs of the planetary gear row 100.
  • a thrust bearing is provided between the gear hub 41 of the second actuator S2 and the housing assembly 300, and the thrust bearing is sleeved on the sun gear shaft 110.
  • the first gear gear 50 and the second gear gear 60 are respectively installed at two second installation positions 250. Since the first gear gear 50 and the second gear gear 60 are both loosely sleeved on the inner gear ring shaft 200, the inner holes of the first gear gear 50 and the second gear gear 60 are both installed with bearings, such as ball bearings, as shown in FIG4. In some embodiments, if the gears are in transmission connection with the inner gear ring shaft 200, no bearings are required.
  • the gear sleeve portion 221 and the shaft sleeve portion 210 are both provided with second installation positions 250, that is, the first gear gear 50 is loosely sleeved on the gear sleeve portion 221 through a bearing, and the second gear gear 60 is loosely sleeved on the shaft sleeve portion 210 through a bearing.
  • the first gear 50 and the second gear 60 are both gear rings.
  • the first gear 50 is sleeved on the cover portion 220 through a needle bearing 177a
  • the second gear 60 is sleeved on the shaft sleeve portion 210 through a needle bearing 177c and is located between the first actuator S1 and the second support bearing 176.
  • Both the first gear 50 and the second gear 60 can rotate freely relative to the inner gear ring shaft 200.
  • the first gear 50 is a large gear ring, and the inner diameter of the first gear 50 is larger than that of the second gear 60.
  • the first gear gear 50 must not only meet the diameter requirement of being able to be sleeved on the cover part 220, but also meet the connection with the first actuator S1 installed on the sleeve part 210. Therefore, the first gear gear 50 is specifically configured to include a ring gear part 51 and a connecting part 52.
  • the ring gear part 51 is similar in structure to the sleeve part 221 of the inner gear ring shaft 200, both of which are sleeve structures.
  • the connecting part 52 is similar in structure to the baffle part 222 of the inner gear ring shaft 200, both of which are annular plate structures.
  • the ring gear part 51 and the connecting part 52 can be an integrally formed structure, or connected and fixed by welding or threaded fasteners.
  • the ring gear part 51 is sleeved on the cover part 220 through a needle bearing 177a, and the bearing is axially limited by a convex edge 263 provided on the outer surface of the cover part 220.
  • the connecting part 52 is fixedly connected to the coupling tooth 42 on one side of the first actuator S1.
  • the connecting part 52 and the coupling tooth 42 of the first actuator S1 can be integrally formed, welded, or transmission-connected.
  • the second gear 60 is fixedly connected to the coupling tooth 42 on the other side of the first actuator S1 , and the second gear 60 and the coupling tooth 42 of the first actuator S1 can be integrally formed, welded, or transmission-connected.
  • the second gear 60 is axially limited by the sleeve 80 of the second support bearing 176 .
  • a thrust bearing 178 is provided between the connecting portion 52 and the cover portion 220, specifically, a thrust bearing 178 is provided between the connecting portion 52 and the baffle portion 222. That is, the first gear position gear 50 is sleeved on the inner gear ring shaft 200 through the needle bearing 177a and the thrust bearing 178, and is axially limited by the thrust bearing 178 and the end face 262 outside the baffle portion 222.
  • the cover portion 220 of the inner gear ring shaft 200 is provided with an oil guide hole 270 that penetrates the wall thickness, so that the lubricating oil splashed in the planetary gear 100 can enter the gap between the first gear position gear 50 and the cover portion 220 through the oil guide hole 270 on the cover portion 220, and lubricate the needle bearing 177a and the thrust bearing 178 therein.
  • the lubrication requirements of the multiple bearings and gears need to be guaranteed. Specifically, splash lubrication or active lubrication can be used. Since the bearings and gears of the inner ring shaft 200 are compactly arranged and form an axial limiting effect on each other, it may be difficult to achieve the expected lubrication effect only by external splashing lubricating oil. Therefore, some embodiments adopt an active lubrication solution.
  • the shaft sleeve 210 is provided with at least one oil guide hole 270 penetrating the sleeve wall of the shaft sleeve 210.
  • the oil guide holes 270 are usually arranged in a plurality along the circumferential direction.
  • the plurality of oil guide holes 270 located in the same cross section are grouped together.
  • the shaft sleeve 210 may be provided with a plurality of groups of oil guide holes 270 along its axial direction.
  • the outer surface of the shaft sleeve 210 is provided with an oil guide groove 280 connected to the oil guide hole 270.
  • the oil guide groove 280 is connected to a group of oil guide holes 270.
  • the specific number of the oil guide grooves 280 is determined according to the embodiment of the present invention.
  • the oil guide groove 280 is a concave groove, and the lubricating oil flowing out of the oil guide hole 270 can be evenly distributed along the circumference by setting the oil guide groove 280.
  • the oil guide groove 280 is a groove, the groove can also be used as a backing groove when machining the outer surface of the inner gear ring shaft 200.
  • the cover portion 220 may also be provided with an oil guide hole 270, which may be selectively provided on the gear sleeve portion 221 and/or the baffle portion 222 to facilitate the lubricating oil to enter and exit the inner hole of the cover portion 220.
  • the baffle portion 222 may be provided with a plurality of oil guide holes 270, which are arranged to be inclined outwardly along the splashing direction, so that the splashed lubricating oil is thrown out from the oil guide hole 270 when the planetary gear 100 rotates, and lubricating the external structural parts of the inner gear ring shaft 200.
  • the planetary gear 100 is the main component for power distribution.
  • the lubrication of the planetary gear 100 is an important condition for ensuring the normal operation of the engine input shaft assembly 610.
  • the main lubrication requirement of the planetary gear 100 is the planetary gear bearing 171.
  • the number of planetary gear bearings 171 is large and the distribution is wide.
  • the installation position of the planetary gear bearing 171 is located in the area surrounded by the planetary carrier 120 and between the planetary gear 140 and the planetary gear shaft 123, it is blocked by the planetary gear 140 and the planetary carrier 120, and it is difficult for lubricating oil to enter the installation position of the planetary gear bearing 171. Therefore, the planetary gear bearing 171 is prone to ablation, affecting the use of the entire planetary gear 100.
  • FIG5 is a schematic diagram of the structure of the internal lubrication channel of the engine input shaft assembly of FIG4.
  • the planetary gear 100 is provided with a lubrication channel 160
  • the sun gear shaft 110 of the planetary gear 100 is provided with a first hollow cavity 111 that penetrates along the axial direction, and the sun gear shaft 110 can be integrally formed with the sun gear 130 of the planetary gear 100, or key-connected.
  • the sun gear shaft 110 is integrally formed with the sun gear 130.
  • the planet carrier 120 of the planetary gear 100 is provided with an oil collecting cavity 124, and the first hollow cavity 111, the oil collecting cavity 124 and the lubrication channel 160 are connected in sequence, and the outlet of the lubrication channel 160 faces the planetary gear bearing 171 of the planetary gear 100.
  • the sun gear shaft 110 is provided with a plurality of fourth oil guide holes 112 connected to the first hollow cavity 111, and the outlet of a fourth oil guide hole 112 among the plurality of fourth oil guide holes 112 faces the bearing between the sun gear shaft 110 and the inner ring shaft 200.
  • the lubrication channel 160 of the planetary carrier 120 may be an oil channel opened in the base material of the planetary carrier 120, or may be an oil channel formed by enclosing external components, as long as the lubricating oil can be delivered to the installation location of the planetary gear bearing 171.
  • the planetary gear bearing 171 is a needle bearing, specifically a full needle bearing or a steel cage needle bearing.
  • the planetary gear bearing 171 adopts a double-row needle bearing with a gasket in the middle. The gasket should form a gap with the planetary gear shaft 123 in the radial direction to ensure that the lubricating oil can enter the needle bearing and lubricate the roller surface of the needle bearing.
  • the planet carrier 120 may include a planet carrier shaft 121, a connecting plate 122, and a plurality of planetary gear shafts 123 connected in sequence, the planetary gear 140 is sleeved on the planetary gear shaft 123, a planetary gear bearing 171 is installed between the planetary gear 140 and the planetary gear shaft 123, and the two sides of the planetary gear 140 are respectively meshed with the gear of the sun gear 130 and the gear of the inner gear ring 150 through gears.
  • the planetary carrier shaft 121 is located at the center of the connecting plate 122, and the planetary gear shafts 123 are evenly distributed along the circumference with the planetary carrier shaft 121 as the center.
  • the planetary carrier shaft 121 and the connecting plate 122 can be detachably connected by threaded fasteners, snap-fit structures, etc., or fixed by welding, or the planetary carrier shaft 121 and the connecting plate 122 are an integrated structure. In some embodiments, the planetary carrier shaft 121 is pressed onto the connecting plate 122 by interference fit.
  • the connecting plate 122 and the planetary gear shaft 123 can also be detachably connected by threaded fasteners, snap-fit structures, etc., or welded and fixed, or the connecting plate 122 and the planetary gear shaft 123 are an integrated structure, which is not limited in the present disclosure.
  • the overall external shape and profile of the planetary carrier 120 are also not limited in the present disclosure, for example, the planetary carrier 120 can adopt a cage structure.
  • the planet carrier shaft 121 is provided with a connected oil collecting chamber 124 and a first oil guide hole 125.
  • the oil collecting chamber 124 is located at the center of the planet carrier shaft 121, preferably coaxial with the planet carrier shaft 121.
  • the planetary gear shaft 123 is provided with a second oil guide hole 126, and the outlet of the second oil guide hole 126 faces the planetary gear bearing 171 of the planetary gear row 100.
  • An oil guide member 20 is provided on the outer side of the connecting plate 122.
  • the first oil guide hole 125, the gap between the oil guide member 20 and the connecting plate 122, and the second oil guide hole 126 are connected in sequence to form a lubrication channel 160.
  • the oil guide member 20 is riveted to the planet carrier 120, and the oil guide member 20 guides the lubricating oil in the oil collecting chamber 124 that is thrown out from the first oil guide hole 125 under the action of centrifugation to the second oil guide hole 126.
  • an intermediate bearing 174 is provided between the planet carrier shaft 121 and the sun gear shaft 110.
  • the intermediate bearing 174 is a thrust bearing that can withstand a large axial force.
  • One end of the sun gear shaft 110 is against the planet carrier shaft 121 through the thrust bearing.
  • the thrust bearing can meet the working requirements of the planetary gear 100 when there is a speed difference between the planet carrier 120 and the sun gear shaft 110 under certain working conditions.
  • the intermediate bearing 174 is specifically located at the end of the sun gear shaft 110. In some embodiments, the intermediate bearing 174 can be located at the end of the sun gear shaft 110.
  • An inwardly concave bearing mounting groove 113 is provided at the end of the male wheel shaft 110 , and the bearing mounting groove 113 is connected to the first hollow cavity 111 , thereby making the internal gap of the intermediate bearing 174 connected to the first hollow cavity 111 , and the lubricating oil in the first hollow cavity 111 can enter the intermediate bearing 174 .
  • the second oil guide hole 126 may be a channel extending radially and/or axially along the planetary gear shaft 123, or may be a channel extending circumferentially along the planetary gear shaft 123, that is, the second oil guide hole 126 may be an axial straight channel, a radial straight channel, an oblique straight channel, a curved channel, etc., which is not limited in the present disclosure. As shown in FIG.
  • the second oil guide hole 126 includes an axial oil guide hole 1261 extending axially along the planetary gear shaft 123 and at least one radial oil guide hole 1262 extending radially along the planetary gear shaft 123, and the outlet of the radial oil guide hole 1262 constitutes the outlet of the lubrication channel 160.
  • the number of radial oil guide holes 1262 is determined according to the size of the planetary gear bearing 171, and is usually set to more than two. The outlets of the more than two radial oil guide holes 1262 are spaced and evenly distributed along the circumferential surface of the planetary gear shaft 123.
  • the second oil guide hole 126 includes an axial oil guide hole 1261 extending axially along the planetary gear shaft 123 and four radial oil guide holes 1262 extending radially along the planetary gear shaft 123.
  • the four radial oil guide holes 1262 are distributed at 90 degrees to each other to ensure that the oil reaches the planetary gear bearing 171 and avoid sintering of the entire planetary gear row 100 due to insufficient lubrication of the planetary gear bearing 171.
  • the inlet of the axial oil guide hole 1261 is set to be a flared port, and the flared port is preferably a circular flared port to reduce flow resistance.
  • the aperture of the flared port gradually increases from the middle to the end, so as to facilitate the entry of lubricating oil into the axial oil guide hole 1261.
  • a first planetary carrier bearing 172 is mounted on the planetary carrier 120, and the first planetary carrier bearing 172 is arranged in the lubrication channel 160, and the internal gap of the first planetary carrier bearing 172 is connected to the lubrication channel 160 for the circulation of lubricating oil. As shown in FIG5 , the first planetary carrier bearing 172 is mounted on the planetary carrier shaft 121 and is close to the connecting plate 122 of the planetary carrier 120.
  • the first planetary carrier bearing 172 is a thrust bearing, and the loose ring of the thrust bearing is in contact with the connecting plate 122, and the tight ring of the thrust bearing is connected and/or in contact with an external fixed member (for example, a housing assembly 300 for mounting the planetary gear 100), so that the planetary gear 100 is axially stable.
  • a channel for the circulation of lubricating oil can be formed between the loose ring and the tight ring, and the roller of the thrust bearing can also be lubricated when the lubricating oil circulates between the loose ring and the tight ring.
  • the first planetary carrier bearing 172 can also be arranged at other positions of the planetary carrier 120, and completely separated from the lubrication channel 160, so as to avoid the internal structure of the first planetary carrier bearing 172 from generating flow resistance.
  • a second planet carrier bearing 173 is further installed on the planet carrier shaft 121, and the second planet carrier bearing 173 adopts a needle bearing.
  • the planet carrier 120 is installed in the housing through the second planet carrier bearing 173.
  • the second planet carrier bearing 173 also needs lubrication during operation.
  • the planet carrier shaft 121 is provided with a third oil guide hole 127 connected to the oil collecting chamber 124, and the outlet of the third oil guide hole 127 faces the second planet carrier bearing 173.
  • the oil collecting chamber 124 is required to accommodate the end of the oil guide pipe 10 near the planetary row 100, and store a certain amount of oil to be transported to the third oil guide hole 127.
  • the oil collecting chamber 124 has a stepped hole structure, wherein the large hole section 1241 is used to accommodate the end of the oil guide pipe 10 near the planetary row 100, and the small hole section 1242 is connected to the third oil guide hole 127.
  • the sun gear shaft 110 is embedded with an oil guide pipe 10, and the oil guide pipe 10 is installed through the sun gear shaft 110 of the planetary gear row 100, specifically, it is installed through the first hollow cavity 111, and the end of the oil guide pipe 10 near the planetary gear row 100 extends into the oil collecting cavity 124 to guide the oil in the sun gear shaft 110 into the oil collecting cavity 124 of the planetary gear row.
  • the oil guide pipe 10 when the axial oil guide channel is relatively long, the oil guide pipe 10 is used to transfer the lubricating oil from the lubricating oil inlet at the end of the far planetary gear 100 to the planetary carrier 120 of the planetary gear 100, so as to avoid the situation that the oil is thrown out and cannot reach the planetary gear 100 due to the centrifugal force formed by the high-speed operation of the sun gear shaft 110, and the near planetary gear end of the oil guide pipe 10 extends into the oil collecting chamber 124, which can reduce the leakage of the lubricating oil at the gap between the sun gear shaft 110 and the planetary carrier 120.
  • the lubricating oil circulates in the lubrication channel 160 and finally flows to the planetary gear bearing 171 to lubricate the bearings of each planetary gear 140, ensure sufficient oil volume of the bearing, and avoid the safety problem of the whole vehicle caused by the ablation of the entire planetary gear 100.
  • the oil guide pipe 10 is provided with a plurality of oil outlet holes 11 spaced apart along the axial direction and/or radial direction of the oil guide pipe 10. There are usually a plurality of oil outlet holes 11 along the axial direction of the oil guide pipe, and the diameter and hole spacing of each oil outlet hole 11 are the same.
  • the oil outlet holes 11 may also be provided in a plurality, and the plurality of oil outlet holes 11 located at the same axial position are spaced apart along the circumferential direction, so that the oil can flow evenly into the first hollow cavity 111 of the sun gear shaft 110.
  • An additional oil outlet hole 11 may be provided at the axial position of the oil guide pipe 10 corresponding to the installation position of the bearing.
  • the distal planetary gear 100 end of the oil guide tube 10 is provided with more than one oil outlet 12. Since the oil outlet 12 is provided on the tube wall of the oil guide tube 10, oil can be discharged radially, reducing resistance and facilitating oil to enter the lubrication channel 160.
  • the oil outlet 12 can be set as a slot with an opening or a complete hole, for example, the oil outlet 12 can be a U-shaped slot or a circular hole.
  • the number of the oil outlets 12 is not limited in the present disclosure. For example, if the number of the oil outlets 12 is set to 3, the shapes of the 3 oil outlets 12 can be the same or different.
  • At least one bushing 30 is sleeved on the oil guiding tube 10, and the bushing 30 fills the gap between the oil guiding tube 10 and the cavity wall of the first hollow cavity 111.
  • the bushing 30 plays a role in supporting the oil guiding tube 10, and the material of the bushing 30 is copper or composite plastic.
  • the sun gear shaft 110 of the engine input shaft assembly 610 is rotatably connected to the rotor 621 of the generator 620, as shown in Figure 4.
  • the rotor 621 of the generator 620 is provided with a second hollow cavity 622 that penetrates along the axial direction, and the second hollow cavity 622 is connected to the first hollow cavity 111.
  • the rotor of the generator 620 is coaxially arranged with the planetary row 100.
  • the lubricating oil introduced into the oil inlet channel 303 of the housing assembly 300 is introduced into the first hollow cavity 111 of the planetary row 100 through the second hollow cavity 622.
  • the oil guide pipe 10 of the planetary row lubrication structure is installed in the second hollow cavity 622 and the first hollow cavity 111.
  • the far planetary row 100 end of the oil guide pipe 10 is directly connected to the oil inlet channel 303 of the housing assembly 300, and the near planetary row 100 end of the oil guide pipe 10 is directly connected to the oil collecting chamber 124 of the planetary carrier 120.
  • the rotor of the generator 620 By connecting the rotor of the generator 620 to the internal oil circuit of the planetary gear 100, the rotor of the motor acts as a pipeline for lubricating oil, which simplifies the structure of the lubrication system and improves the integration and vehicle mountability of the hybrid electric drive system 1000.
  • a hybrid electric drive system 1000 is provided according to a second aspect of the present disclosure.
  • FIG8 is an overall structural diagram of a hybrid electric drive system according to some embodiments of the present disclosure
  • FIG9 is a structural schematic diagram of the hybrid electric drive system of FIG8 after removing the end cover
  • FIG10 is a structural schematic diagram of the hybrid electric drive system of FIG8 after removing the right housing.
  • the hybrid electric drive system 1000 may include a housing assembly 300, a shift mechanism assembly 500, and the hybrid transmission mechanism assembly 600, and the shift mechanism assembly 500 and the hybrid transmission mechanism assembly 600 are both installed in the housing assembly 300.
  • the housing assembly 300 is provided with a shaft gear cavity 302 and a motor cavity 301
  • the generator 620 and the drive motor 670 of the hybrid transmission mechanism assembly 600 are both installed in the motor cavity 301
  • the shift mechanism assembly 500 and the engine input shaft assembly 610, the drive motor input shaft assembly 660, the ICE intermediate shaft assembly 630, the EV intermediate shaft assembly 650 and the differential shaft assembly 640 of the hybrid transmission mechanism assembly 600 are all installed in the shaft gear cavity 302.
  • the housing assembly 300 adopts a split structure.
  • the specific division method is not limited in this disclosure.
  • the housing assembly 300 can be divided in a horizontal plane to form two upper and lower housings, or divided in a vertical plane to form three left, middle and right housings.
  • the housing assembly 300 includes a right housing 310, a left housing 320 and an end cover 330 connected in sequence.
  • the right housing 310 and the left housing 320 enclose a shaft gear cavity 302.
  • the left housing 320 and the end cover 330 enclose a motor cavity 301, and the generator 620 and the drive motor 670 are both located in the motor cavity 301.
  • the left housing 320 is provided with an intermediate plate 321, and the intermediate plate 321 is a cover body, which is fixedly connected to the left housing 320 by threaded fasteners or welding.
  • the intermediate plate 321 is installed with a ball bearing 179 for supporting the rotor 621 of the generator 620, as shown in FIG. 4.
  • the coupling teeth 42 of the second actuator S2 are fixedly connected to the intermediate plate 321, and specifically, the coupling teeth 42 of the second actuator S2 can be directly processed on the intermediate plate 321. In some embodiments, the coupling teeth 42 of the second actuator S2 can also be welded or interference-pressed on the intermediate plate 321.
  • FIG11 is a schematic diagram of the structure of the middle plate of the hybrid electric drive system of FIG8.
  • the middle plate 321 is provided with a bearing hole 3211 for setting a bearing and an avoidance area 3212 for avoiding the shift fork of the shift mechanism assembly 500.
  • the middle plate 321 can be provided with a bearing, and a certain installation space can be formed between the middle plate 321 and the left housing 320.
  • a shift fork installation position can be set between the middle plate 321 and the left housing 320, and the shift fork can be installed in the shift fork installation position through the avoidance area 3212 on the middle plate 321, making the installation of the shift fork more convenient.
  • a bearing hole 3211 is provided on the middle plate 321 for setting the bearing of the rotor of the generator 620, increasing the number of bearing installation holes of the entire left housing 320.
  • the rotor 621 of the generator 620 is supported on the middle plate 321 and the end cover 330 by two bearings, and the planetary carrier shaft 121 of the planetary gear 100 is supported on the right housing 310 by the first planetary carrier bearing 172 and the second planetary carrier bearing 173.
  • the bottom of the left housing 320 forms an oil pan, and the lubricating oil falls into the oil pan after lubricating the hybrid transmission mechanism assembly 600.
  • An oil inlet channel 303 is provided in the end cover 330, and the oil inlet channel 303 is connected to the second hollow cavity 622 of the rotor 621 of the generator 620.
  • the lubricating oil is pumped by an external oil pump, so that the lubricating oil circulates in the oil pan, the oil inlet channel 303, the oil guide pipe 10 (or the second hollow cavity 622 and the first hollow cavity 111), and the lubrication channel 160.
  • the hybrid electric drive system 1000 also includes a controller assembly 400, which is used to control the operation of the motor and the shift mechanism assembly 500.
  • the controller assembly 400 can also control the operation of electronic devices such as the oil pump and some sensors (temperature sensors, pressure sensors, etc.) set inside the hybrid electric drive system 1000.
  • the controller assembly 400 can be set separately from the housing assembly 300 and connected by wires. As shown in Figure 8, in some embodiments, the controller assembly 400 is installed on the housing assembly 300, and the controller assembly 400 is provided with a control board, a drive board and an IGBT for controlling the generator 620 and the drive motor 670.
  • the controller assembly 400 has three output copper bars for electrical connection with the three-phase input copper bars of the generator 620 and the drive motor 670.
  • the controller assembly 400 also has a low-voltage wiring harness for connecting low-voltage equipment (sensors, pumps, etc.) on the housing assembly 300 or inside the housing assembly 300.
  • the specific structure of the controller assembly 400 can refer to the relevant disclosure of the prior art, and the present disclosure is not limited.
  • a vehicle is provided according to the third aspect of the present disclosure, which may include the hybrid electric drive system 1000, that is, the vehicle is a hybrid vehicle, powered by an engine and a motor. Since the vehicle is equipped with the hybrid electric drive system 1000, it at least has all the beneficial effects brought by the technical solution of the hybrid electric drive system 1000.
  • the hybrid electric drive system 1000 has high integration and small size, and can be installed in the engine compartment of vehicles of different models. Other undetailed structures of the vehicle can refer to the relevant disclosure of the prior art, and will not be described here.
  • the hybrid transmission mechanism assembly includes an engine input shaft assembly, a generator, an ICE intermediate shaft assembly, a differential shaft assembly, an EV intermediate shaft assembly, a drive motor input shaft assembly and a drive motor that are transmission-connected.
  • the engine input shaft assembly is transmission-connected to the engine, and the engine input shaft assembly is provided with a planetary gear, an actuator and a gear gear, so that gear shifting can be achieved. That is, the hybrid transmission mechanism assembly of the present disclosure can achieve hybrid power input of the engine + motor, and multi-gearing of the hybrid engine.
  • the hybrid transmission mechanism assembly has an engine input shaft assembly coaxially arranged with the generator, a drive motor input shaft assembly coaxially arranged with the drive motor, and the generator and the drive motor are located on the same side.
  • the motor assembly and the shaft gear assembly can be placed separately, thereby facilitating the design of the cooling and lubrication system and the high and low pressure partitioning.
  • the present disclosure adopts a technical solution of coaxially arranging the motor and the input shaft, which can reduce the one-way size of the hybrid transmission mechanism assembly.
  • the installation height of the engine input shaft assembly is located between the drive motor and the differential shaft assembly, and the projection of the engine input shaft assembly on the vertical plane overlaps with the projection of the drive motor and the differential shaft assembly on the vertical plane.
  • the axis of the engine input shaft assembly, the axis of the drive motor and the axis of the differential shaft assembly of the hybrid transmission mechanism assembly are distributed in a triangular shape, which can not only reduce the one-way size of the hybrid transmission mechanism assembly, but also the triangular distribution structure is stable, and the triangular distribution can provide installation space for the ICE intermediate shaft assembly and the EV intermediate shaft assembly.
  • the above structural design can reduce the size of the hybrid transmission mechanism assembly on a plane perpendicular to the axis of the engine input shaft.
  • the hybrid transmission mechanism assembly provided by the present disclosure has an inner gear ring shaft, which can be sleeved outside the planetary gear and is drivingly connected to the inner gear ring of the planetary gear.
  • the inner gear ring shaft is installed on the housing assembly through a support bearing, and multiple component installation positions can be set on it.
  • the actuator, support bearing and gear are all installed and fixed through the inner gear ring shaft.
  • the hybrid transmission mechanism assembly compared with the existing hybrid transmission, can reduce the size along the axial direction of the engine input shaft and on the plane perpendicular to the axis of the engine input shaft through the position design of the internal assembly, and by providing an inner ring shaft on the engine input shaft assembly, the planetary gear transmission function, actuator installation, gear gear installation and necessary axial limit function can be integrated at the same time, thereby greatly improving the integration of the hybrid transmission mechanism assembly, reducing the functional volume of the hybrid transmission mechanism assembly in the axial direction, so that it has more flexible layout and mounting performance.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)

Abstract

L'invention concerne un ensemble de transmission de puissance hybride (600), comprenant un ensemble arbre d'entrée de moteur (610), un générateur (620), un ensemble arbre intermédiaire ICE (630), un ensemble arbre différentiel (640), un ensemble arbre intermédiaire EV (650), un ensemble arbre d'entrée de moteur d'entraînement (660) et un moteur d'entraînement (670). L'invention concerne également un système d'entraînement électrique hybride (1000) et un véhicule.
PCT/CN2023/095712 2022-10-24 2023-05-23 Ensemble de transmission de puissance hybride, système d'entraînement électrique hybride et véhicule WO2024087600A1 (fr)

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CN202211305951.0A CN115635838A (zh) 2022-10-24 2022-10-24 一种混合动力变速机构总成、混合动力电驱动系统和车辆
CN202211305951.0 2022-10-24

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CN115750752A (zh) * 2022-10-24 2023-03-07 东风汽车集团股份有限公司 一种混合动力电驱动系统以及混合动力车辆
CN115638239A (zh) * 2022-10-24 2023-01-24 东风汽车集团股份有限公司 一种行星排润滑结构、混合动力电驱动总成及车辆
CN115635838A (zh) * 2022-10-24 2023-01-24 东风汽车集团股份有限公司 一种混合动力变速机构总成、混合动力电驱动系统和车辆

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US20040121870A1 (en) * 2001-12-27 2004-06-24 Masayuki Takenaka Drive unit equipped with electric motor
CN108674170A (zh) * 2018-06-19 2018-10-19 西安法士特汽车传动有限公司 一种两挡混合动力变速器
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