CN109484155B - Double-motor double-planet-row multi-mode electromechanical coupling transmission device - Google Patents

Double-motor double-planet-row multi-mode electromechanical coupling transmission device Download PDF

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Publication number
CN109484155B
CN109484155B CN201811543508.0A CN201811543508A CN109484155B CN 109484155 B CN109484155 B CN 109484155B CN 201811543508 A CN201811543508 A CN 201811543508A CN 109484155 B CN109484155 B CN 109484155B
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China
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motor
pivot
shaft
dual
clutch
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CN201811543508.0A
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CN109484155A (en
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董鹏
李松霖
徐向阳
刘艳芳
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Beihang University
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Beihang University
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Priority to CN201811543508.0A priority Critical patent/CN109484155B/en
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Priority to PCT/CN2019/123885 priority patent/WO2020125465A1/en
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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
    • B60K1/00—Arrangement or mounting of electrical propulsion units
    • B60K1/02—Arrangement or mounting of electrical propulsion units comprising more than one electric motor
    • 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
    • B60K6/22—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/60—Other road transportation technologies with climate change mitigation effect
    • Y02T10/62—Hybrid vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Transmissions (AREA)
  • Hybrid Electric Vehicles (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)

Abstract

Compared with a Toyota THS system scheme and a Kohler CHS system scheme, the application can realize input power split and composite power split through opening or closing of a clutch C1, namely, the two hybrid eCVT modes are provided, and higher transmission efficiency can be obtained through switching of the two hybrid modes. Compared with the general Voltec 2 generation structural scheme, the application has one more pure electric gear, and the smaller speed ratio of the pure electric gear 2 can reduce the peak rotating speed of the motor E1 or increase the highest vehicle speed under the pure electric running of the vehicle. In addition, the two motors are arranged on the same side of the planetary gear set, so that the structure is more compact.

Description

Double-motor double-planet-row multi-mode electromechanical coupling transmission device
Technical Field
The application relates to an automobile power transmission device, in particular to a double-motor double-planet-row multi-mode electromechanical coupling transmission device.
Background
The technical scheme described in the patent number CN 101992679B is different from the scheme of the present application in the connection mode and mode types of the planetary gear members. Patent number CN 101992679B can only realize composite power splitting, but the scheme of the present application can realize input power splitting in addition to composite power splitting.
Disclosure of Invention
The application aims to provide a double-motor double-planet-row multi-mode electromechanical coupling transmission device so as to solve the technical problems in the prior art.
The application provides a double-motor double-planet-row multi-mode electromechanical coupling transmission device, wherein an engine is connected with a first rotating shaft, a first planet row sun gear is positioned on a third rotating shaft, a planet carrier is positioned on the first rotating shaft, a gear ring is positioned on a fourth rotating shaft, a second planet row sun gear is positioned on a sixth rotating shaft, the planet carrier is positioned on the fourth rotating shaft, the gear ring is positioned on a fifth rotating shaft, a first brake is connected with the first rotating shaft and a box body, a second brake is connected with the sixth rotating shaft and the box body, a first clutch is connected with the sixth rotating shaft and the third rotating shaft, a first motor is connected with the fifth rotating shaft, a second motor is connected with the third rotating shaft, a first fixed-shaft gear set pinion is positioned on the fourth rotating shaft, a large gear is positioned on a seventh rotating shaft, power is transmitted to a parallel shafting from an input shafting, a second fixed-shaft gear set pinion is positioned on the seventh rotating shaft, a large gear is positioned on the second rotating shaft, and power is transmitted from the parallel shafting to an output shafting, and a differential is positioned on the second rotating shaft.
Further, the first motor is arranged on a parallel shaft through a fixed shaft gear set.
Further, the second motor is arranged on a parallel shaft through a fixed shaft gear set.
Further, the device also comprises a third brake, wherein the third brake is connected with the fifth rotating shaft and the box body.
Further, the device further comprises a second clutch, wherein the second clutch is connected with the first rotating shaft and the third rotating shaft.
Further, the clutch device further comprises a third clutch, the third clutch and the second clutch form a double clutch module, the third clutch breaks the first rotating shaft, the broken rotating shaft is connected with the engine side to form the first rotating shaft, the planet carrier on the first rotating shaft is connected with the first brake side to form an eighth rotating shaft, and the third clutch is connected with the first rotating shaft and the eighth rotating shaft.
The double-motor double-planet-row multi-mode electromechanical coupling transmission device provided by the application has the following advantages:
compared with the Toyota THS system scheme (input power split) and the Kohl remote CHS system scheme (composite power split), the application can realize input power split and composite power split through opening or closing the clutch C1, namely, the hybrid power split type electric motor vehicle (eCVT) has two hybrid eCVT modes, and higher transmission efficiency can be obtained through switching of the two hybrid modes.
Compared with the general Vo l tec 2 generation structural scheme, the application has one more pure electric gear, and the smaller speed ratio of the pure electric gear 2 can reduce the peak rotating speed of the motor E1 or increase the highest vehicle speed under the pure electric running of the vehicle. In addition, the two motors are arranged on the same side of the planetary gear set, so that the structure is more compact.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present application, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a dual-motor dual-planet-row multi-mode electromechanical coupling transmission device according to an embodiment of the present application.
Fig. 2 is a longitudinal arrangement form of a dual-motor dual-planet-row multi-mode electromechanical coupling transmission device according to a first embodiment of the present application.
Fig. 3 is a diagram of a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a second embodiment of the present application.
Fig. 4 is a diagram of a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a third embodiment of the present application.
Fig. 5 is a diagram of a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a fourth embodiment of the present application.
Fig. 6 is a diagram of a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a fifth embodiment of the present application.
Fig. 7 is a diagram showing a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a sixth embodiment of the present application.
Fig. 8 is a scheme of a purely electric 3-speed transmission mechanism provided in the seventh embodiment of the application.
Reference numerals: 1-a first rotating shaft; 3-a third rotating shaft; 4-a fourth rotating shaft; 6-a sixth rotating shaft; 5-a fifth rotating shaft; b1-a first brake; b2-a second brake; c1-a first clutch; e1-a first motor; e2-a second motor; 7-seventh spindle; 2-a second rotating shaft; b3-third brake; a C2-second clutch; a C3-third clutch; 8-eighth rotating shaft.
Detailed Description
The following description of the embodiments of the present application will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the application are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
In the description of the present application, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
Embodiment one:
FIG. 1 is a schematic structural diagram of a dual-motor dual-planet-row multi-mode electromechanical coupling transmission device according to a first embodiment of the present application; as shown in fig. 1, the engine is connected to a first shaft 1, a first planet row sun gear is located on a third shaft 3, a planet carrier is located on the first shaft 1, a gear ring is located on a fourth shaft 4, a second planet row sun gear is located on a sixth shaft 6, a planet carrier is located on the fourth shaft 4, a gear ring is located on a fifth shaft 5, a first brake B1 is connected to the first shaft 1 and a box, a second brake B2 is connected to the sixth shaft 6 and the box, a first clutch C1 is connected to the sixth shaft 6 and the third shaft 3, a first motor E1 is connected to the fifth shaft 5, a second motor E2 is connected to the third shaft 3, a first gear set pinion is located on the fourth shaft 4, a bull gear is located on a seventh shaft 7, power is transferred from an input shaft to a parallel shaft, a second gear set pinion is located on the seventh shaft 7, a bull gear is located on the second shaft 2, and power is transferred from the parallel shaft to an output shaft 2 on the differential.
The double-motor double-planet-row multi-mode electromechanical coupling transmission device can realize the following working modes.
(1) Pure 1 gear mode (EV 1): the first clutch C1 is engaged, the first brake B1 is engaged for braking, and the second brake B2 is opened. The first motor E1 alone drives the vehicle to run or the first motor E1 and the second motor E2 in combination drive the vehicle to run. The engine is not running. In this mode, reverse gear can be achieved by reversing the two motors.
(2) Pure 2 gear mode (EV 2): the first clutch C1 is opened, the first brake B1 is engaged for braking (when the first motor E1 and the second motor E2 are driven by two motors) or is not loaded (when the first motor E1 is driven by itself), and the second brake B2 is engaged. The first motor E1 alone drives the vehicle to run or the first motor E1 and the second motor E2 in combination drive the vehicle to run. The engine is not running. In this mode, reverse gear can be achieved by reversing the two motors.
(3) Low speed hybrid mode (HEV 1): the first clutch C1 is opened, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is engaged. The first motor E1 outputs power to drive the vehicle to run, and the second motor E2 generates power. The output power of the engine is split in the first planetary gear set, part of the output power is transmitted to the wheel end to drive the vehicle to run, and the other part of the output power is transmitted to the second motor E2 to drive the second motor E2 to generate electricity, namely, the input power is split. In this mode, the second electric machine E2 may achieve stepless speed regulation of the engine, i.e. this mode is the eCVT mode.
(4) Fixed ratio mode 1 (FR): the first clutch C1 is engaged, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is engaged. At this time, the speed ratio of the first rotating shaft 1 and the second rotating shaft 2 connected with the engine is fixed. The second motor E2 rotates at 0, and neither outputs power nor generates electricity. The engine output power may be used to drive the vehicle entirely, or may be used to drive the vehicle partially or the first motor E1 partially to generate electricity. The first electric machine E1 may also drive the vehicle in conjunction with the engine. The speed ratio of the first rotating shaft 1 to the fourth rotating shaft 4 in the fixed speed ratio mode is smaller than 1.
(5) High speed hybrid mode (HEV 2): the first clutch C1 is engaged, the first brake B1 is opened (the first rotating shaft 1 overruns), and the second brake B2 is opened. At this time, the engine, the first motor E1 and the second motor E2 can realize four-axis composite power split. The engine output partially drives the vehicle to run and partially generates electricity through the second motor E2. The first motor E1 outputs power to drive the vehicle. In this mode, the vehicle may be driven by the combined output power of the engine, the first motor E1, and the second motor E2, when the battery pack output and the motor controller power permit. At this time, the engine speed may be continuously and steplessly adjusted by the first electric machine E1 or the second electric machine E2, also in the eCVT mode.
(6) Engine start mode: according to the scheme, the second motor E2 can directly output torque to start the engine.
(7) Parking power generation mode: when the automobile is in a parking state, the seventh rotating shaft 7 or the fourth rotating shaft 4 is locked by the parking locking mechanism, and the second brake B2 and the first brake B1 are opened. The engine output power is transmitted to the second electric machine E2 through the first planetary gear set to generate electric power and used for charging the battery pack. If the first clutch C1 is engaged, the engine output portion power may continue to be transmitted to the first electric machine E1 through the second planetary gear set, i.e., the first electric machine E1 and the second electric machine E2 may generate electricity simultaneously and be used for charging the battery pack.
(8) Braking energy recovery mode: when the vehicle descends or brakes, the reduced kinetic energy is transmitted to the first motor E1 through the second planetary gear, and the first motor E1 outputs braking torque to generate power and charge the battery pack; if the first clutch C1 is engaged, the second electric machine E2 may also output a braking torque in conjunction with the first electric machine E1 to generate electricity and charge the battery pack.
Specifically, the first brake B1 is a one-way brake.
Specifically, the second brake B2 is a wet-type multi-disc brake.
Specifically, the first clutch C1 is a wet multiplate clutch.
In the present embodiment, the first brake B1, the second brake B2, and the first clutch C1 are not limited to the one-way brake/clutch described herein, and are wet-type multi-plate clutches/brakes. All other forms of clutch/brake, such as synchronizers, tooth clutches, selectable one-way clutches, etc., are within the scope of the present application as long as the connection between the elements of the present application is followed.
As shown in fig. 2, the longitudinal arrangement form of the double-motor double-planet-row multi-mode electromechanical coupling transmission device provided by the embodiment of the application belongs to the protection scope of the application as long as the structural connection mode among each member of the planet row, the double motor and the engine is followed.
Embodiment two:
fig. 3 is a diagram showing a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a second embodiment of the present application, wherein the dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to the first embodiment of the present application is configured to place a first motor E1 on a parallel shaft through a fixed-shaft gear set on the basis of the first embodiment and fig. 1.
Embodiment III:
fig. 4 is a diagram showing a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a third embodiment of the present application, in which, based on the first embodiment and fig. 1, the dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to the third embodiment of the present application places the second motor E2 on a parallel shaft through a fixed-shaft gear set.
Embodiment four:
fig. 5 is a diagram showing a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a fourth embodiment of the present application, wherein a third brake B3 is added to the dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to the first embodiment and fig. 1, and the fifth rotating shaft 5 is connected to the case, and the following working modes are added to the working modes according to the first embodiment:
parking power generation mode 2: the second brake B2 and the third brake B3 are engaged, the first clutch C1 is opened, and the first brake B1 is opened. In this mode, the second brake B2, the third brake B3 are engaged to lock the fourth rotation shaft 4, i.e., the output is locked, and the engine output can be transmitted to the second electric machine E2 through the first planetary gear to generate electricity and be used for charging the battery pack. The parking power generation mode does not require the use of the parking lock mechanism to lock the seventh rotation shaft 7 or the fourth rotation shaft 4.
Fixed ratio mode 2: the third brake B3 and the first clutch C1 are engaged, the first brake B1 is opened, and the second brake B2 is opened. In this mode, the first motor E1 rotates at 0, and neither output nor generate power. The engine output power may be used to drive the vehicle entirely, or may be used to drive the vehicle partially or the second motor E2 partially to generate electricity. The second electric machine E2 may also drive the vehicle in conjunction with the engine. The fixed speed ratio mode has a speed ratio of the first rotating shaft 1 to the fourth rotating shaft 4 greater than 1.
Fifth embodiment:
fig. 6 is a diagram of a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a fifth embodiment of the present application, wherein on the basis of the first embodiment and fig. 1, a second clutch C2 is added to connect the first rotating shaft 1 and the third rotating shaft 3, and on the basis of the first embodiment, the following working modes are added:
fixed ratio mode 3: the second clutch C2 and the first clutch C1 are engaged, the first brake B1 and the second brake B2 are opened, at this time, the first planetary gear set and the second planetary gear set integrally rotate, and the rotation speeds of all the components of the two planetary gear sets are the same, that is, the rotation speeds of the first rotation shaft 1, the third rotation shaft 3, the fourth rotation shaft 4, the fifth rotation shaft 5 and the sixth rotation shaft 6 are the same. At this time, the speed ratio of the first rotating shaft 1 to the fourth rotating shaft 4 is equal to 1. In this mode, the engine can drive the vehicle alone; the first motor E1 and the second motor E2 can also be used for driving the vehicle to run together; the output power can be partially supplied to the second motor E2 to generate power, and the output power of the second motor E1 is partially converged to drive the vehicle to run.
Fixed ratio mode 4: the second clutch C2 and the second brake B2 are engaged, the first clutch C1 and the second brake B2 are opened, and the first planet row integrally rotates at the moment, namely the rotation speeds of the first rotating shaft 1, the third rotating shaft 3 and the fourth rotating shaft 4 are the same. At this time, the speed ratio of the first rotating shaft 1 to the fourth rotating shaft 4 is equal to 1. The difference from the fixed speed ratio mode 3 is that the sixth rotating shaft 6 is braked by the second brake B2 at a rotation speed of 0 and the first electric motor E1 (i.e., the fifth rotating shaft 5) is rotated at a rotation speed higher than the engine speed. In this mode, the engine can drive the vehicle alone; the first motor E1 and the second motor E2 can also be used for driving the vehicle to run together; the output power can be partially supplied to the second motor E2 to generate power, and the output power of the second motor E1 is partially converged to drive the vehicle to run.
Example six:
fig. 7 is a diagram showing a dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to a sixth embodiment of the present application, on the basis of the fifth embodiment and fig. 6, a third clutch C3 is added to the dual-motor dual-planetary-row multi-mode electromechanical coupling transmission device according to the sixth embodiment, the third clutch C3 and the second clutch C2 form a dual-clutch module, the third clutch C3 breaks the first rotating shaft 1, the broken rotating shaft is connected with an engine to form a first rotating shaft 1, the planet carrier on the first rotating shaft 1 is connected with an eighth rotating shaft 8 on the first brake B1 side, and the third clutch C3 connects the first rotating shaft 1 with the eighth rotating shaft 8.
The following working modes are added on the basis of the working modes of the fifth embodiment:
serial mixing mode: the second clutch C2 and the second brake B2 are engaged, and the first brake B1, the first clutch C1, and the third clutch C3 are opened. At this time, the output power of the engine completely generates power for the second motor E2, and the output power of the first motor E1 drives the vehicle to run. The engine speed torque is decoupled from the output speed torque.
Embodiment seven:
fig. 8 shows a pure electric 3-gear transmission scheme according to a seventh embodiment of the present application, and the scheme according to the first embodiment may be extended to a pure electric 3-gear transmission scheme based on the connection manner of the first planetary row and the second planetary row according to the first embodiment. As shown in fig. 8, the first planet carrier is located on the first rotating shaft 1, and is connected with a driving motor to be a power input end; the first planet gear ring is positioned on the fourth rotating shaft 4, and power is output to the parallel shafting through the fourth rotating shaft 4 until wheels; the first planet row sun gear is located on the third rotating shaft 3. The second planet row sun gear is also positioned on the third rotating shaft 3; the second planet carrier is positioned on the fourth rotating shaft 4; the second planet gear ring is located on the fifth rotating shaft 5. The first brake B1 is connected with the fifth rotating shaft 5 and the box body, and the second brake B2 is connected with the third rotating shaft 3 and the box body. The first clutch C1 connects the fourth rotating shaft 4 and the third rotating shaft 3. The first brake B1 of the 1 st gear is engaged, and the first clutch C1 and the second brake B2 are opened; the first clutch C1 of the 2 nd gear is engaged, and the first brake B1 and the second brake B2 are opened; the 3 rd gear second brake B2 is engaged, and the first brake B1 and the first clutch C1 are opened.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (6)

1. The utility model provides a two motor double planet row multimode electromechanical coupling transmission, its characterized in that, the engine links to each other with first pivot, and first planet row sun gear is located the third pivot, and the planet carrier is located in the first pivot, the ring gear is located the fourth pivot, and second planet row sun gear is located the sixth pivot, and the planet carrier is located the fourth pivot, the ring gear is located the fifth pivot, first stopper is connected first pivot and box, second stopper is connected the sixth pivot with the box, first clutch connects the sixth pivot with the third pivot, first motor with the fifth pivot links to each other, and the second motor with the third pivot links to each other, and first fixed axle gear set pinion is located in the fourth pivot, and the bull gear is located the seventh pivot, will power by input shafting to transfer to parallel shafting, second fixed axle gear set pinion is located in the seventh pivot, the bull gear is located the second pivot, will power by parallel shafting transfer to the output, differential mechanism is located in the second pivot.
2. The dual motor, dual planetary multi-mode electromechanical coupling transmission according to claim 1, wherein the first motor is disposed on parallel shafts through a fixed shaft gear set.
3. The dual motor, dual planetary multi-mode electromechanical coupling transmission according to claim 1, wherein the second motor is disposed on parallel shafts through a fixed shaft gear set.
4. The dual-motor, dual-planetary-row, multi-mode electromechanical coupling transmission of claim 1, further comprising a third brake connecting the fifth shaft with the housing.
5. The dual-motor, dual-planetary-row, multi-mode electromechanical coupling transmission of claim 1, further comprising a second clutch connecting the first shaft and the third shaft.
6. The dual-motor, dual-planetary-row, multi-mode, electromechanical coupling transmission of claim 5, further comprising a third clutch, wherein the third clutch and the second clutch form a dual clutch module, wherein the third clutch breaks the first shaft, the broken shaft is connected to the first shaft on the engine side, the planet carrier on the first shaft is connected to the eighth shaft on the first brake side, and the third clutch is connected to the first shaft and the eighth shaft.
CN201811543508.0A 2018-12-17 2018-12-17 Double-motor double-planet-row multi-mode electromechanical coupling transmission device Active CN109484155B (en)

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