CN112895883B - Dual-drive-source and double-row planetary gear train multi-mode coupling driving system and automobile - Google Patents

Dual-drive-source and double-row planetary gear train multi-mode coupling driving system and automobile Download PDF

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CN112895883B
CN112895883B CN202110189250.4A CN202110189250A CN112895883B CN 112895883 B CN112895883 B CN 112895883B CN 202110189250 A CN202110189250 A CN 202110189250A CN 112895883 B CN112895883 B CN 112895883B
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planetary gear
row
double
gear
automobile
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CN112895883A (en
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赵升吨
杜威
郑臻皓
高景洲
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Xian Jiaotong University
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Xian Jiaotong University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/50Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54Transmission for changing ratio
    • B60K6/547Transmission for changing ratio the transmission being a stepped gearing
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/24Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/26Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/38Arrangement 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
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60KARRANGEMENT 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
    • B60K6/00Arrangement 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
    • B60K6/20Arrangement 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
    • B60K6/22Arrangement 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
    • B60K6/38Arrangement 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
    • B60K2006/381Arrangement 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 characterized by driveline brakes
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/62Hybrid vehicles

Abstract

The invention relates to a drive transmission system of an automobile, in particular to a double-drive source and double-row planetary gear train multi-mode coupling drive system for the automobile, which comprises a main drive source and an auxiliary drive source; the first row of planetary gear mechanisms comprise a first planet carrier, a first planet wheel and a first sun gear, the second row of planetary gear mechanisms comprise a second planet carrier, a second planet wheel and a second sun gear, the first row of planetary gear mechanisms and the second row of planetary gear mechanisms share a gear ring, and the first sun gear and the second sun gear are connected through an overrunning clutch; the first brake is used for braking the gear ring, and the second brake is used for braking the second planet carrier; the first planet carrier of the first row of planetary gear mechanism is the output of power. The invention has the characteristics of compact structure and simple control, has a plurality of working modes, and selects the working modes according to the change of road conditions, so that the two motors always work in a high-efficiency region, the efficiency of a driving system is improved, and the driving range of the electric automobile is prolonged.

Description

Dual-drive-source and double-row planetary gear train multi-mode coupling driving system and automobile
Technical Field
The invention relates to a driving transmission system of an electric automobile, in particular to a multi-mode coupling driving system of a double-driving source and a double-row planetary gear train for an automobile.
Background
At present, a driving system of an electric automobile generally comprises a motor and a 1-gear or 2-gear transmission, in order to meet the driving performance requirements of the automobile under different working conditions, the requirements on the torque and the power capacity of the motor are higher, and the efficiency of a large-capacity motor is lower under the light-load working condition and is different from the highest efficiency by 20-30%.
The chinese patent with application number 201310633682.5 discloses a dual-motor coupling driving system for an electric vehicle, which comprises two driving motors, three clutches, a locking device, a row of planetary gear mechanisms and a group of gear transmission mechanisms. The two motors can be respectively in an independent driving mode, a rotating speed coupling driving mode and a torque coupling driving mode by controlling the working states of the clutch and the lockup device. The technical scheme has the disadvantages that the number of executing elements is large, three clutches and one locker need to be controlled simultaneously, and the requirement on a control system is high; and the radial size of the system is large because the main driving motor is connected to the gear ring of the planetary gear through a group of gears.
The chinese patent with application number 201410584883.5 discloses a double-motor double-planet-row power coupling driving structure, which mainly comprises two driving motors, two rows of planet gear mechanisms, three brakes and two speed reducers. When the automobile is in low speed, the torque of the two motors is coupled or the single motor is decelerated through two stages of planets to output large torque; when the automobile is in high speed, the two motors can output high rotating speed through rotating speed coupling. The disadvantage of this solution is the large number of actuators; the two motors are arranged in parallel, and the structure is not compact enough.
In summary, in the prior art, in order to enable the driving system to realize three driving modes, i.e., single motor driving, rotational speed coupling and torque coupling, at least three actuators (clutches or brakes) need to be controlled; in order to reduce the requirement on the performance of the motor, the motor connected to the ring gear needs to be connected to the ring gear after being subjected to primary speed reduction, so that the system is not compact.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a multi-mode coupling driving system of a double-driving-source and double-row planetary gear train for an automobile, which has the characteristics of compact structure and simple control, has multiple working modes, selects the working modes according to the change of road conditions, enables two motors to work in a high-efficiency region all the time, improves the efficiency of the driving system, and prolongs the driving range of the electric automobile.
The technical scheme for realizing the functions is as follows: a multi-mode coupling driving system of a double-driving source and a double-row planetary gear train for an automobile is characterized in that:
the device comprises a main driving source, an auxiliary driving source, a first row of planetary gear mechanisms, a second row of planetary gear mechanisms, a first brake, a second brake and an overrunning clutch;
the first row of planetary gear mechanism comprises a first planet carrier, a first planet wheel and a first sun wheel,
the second row of planetary gear mechanisms comprise a second planet carrier, a second planet gear and a second sun gear, the first row of planetary gear mechanisms and the second row of planetary gear mechanisms share a gear ring, and the first sun gear and the second sun gear are connected through an overrunning clutch;
the main driving source drives the first sun gear to move, and the auxiliary driving source drives the second sun gear to move;
the first brake is used for braking the gear ring, and the second brake is used for braking the second planet carrier;
the first planet carrier of the first row of planetary gear mechanisms is the output of power.
Further, the differential mechanism is further included, and the first planet carrier transmits power to the differential mechanism through the first transmission gear and the second transmission gear.
Furthermore, the power output shafts of the main driving source and the auxiliary driving source are coaxial with the axes of the second sun gear and the first sun gear.
Further, the main driving source and the auxiliary driving source are respectively a main driving motor and an auxiliary driving motor.
Further, the main drive source and the auxiliary drive source are internal combustion engines.
In addition, the invention also provides an automobile, which is characterized in that:
the automotive multi-mode coupling driving system comprises the automotive multi-mode coupling driving system with the double driving sources and the double rows of planetary gear trains.
The invention has the advantages that:
(1) the invention has a plurality of working modes, and can select a proper working mode according to road conditions in the driving process of the vehicle, thereby improving the overall efficiency of the driving system and prolonging the driving range of the vehicle.
(2) The invention can realize three different working modes by two executing elements by utilizing the working characteristics of the overrunning clutch, thereby reducing the control difficulty of the system.
(3) The two driving sources and the planetary gear mechanism are coaxially arranged, and the structure is compact.
Drawings
FIG. 1 is a schematic structural diagram of a dual-drive source and dual-row planetary gear train multi-mode coupling driving system for an automobile, which is disclosed by the invention;
FIG. 2 is a schematic diagram of the present invention in a single motor drive mode;
FIG. 3 is a schematic illustration of the present invention in a dual motor torque coupling drive mode;
fig. 4 is a schematic diagram of the present invention in a dual motor tacho coupling drive mode.
The reference numbers in the figures illustrate: 1. the planetary gear transmission mechanism comprises a main driving motor, 2, a first transmission gear, 3, a first planet carrier, 4, a gear ring, 5, a first brake, 6, a first planet wheel, 7, a second planet wheel, 8, a second planet carrier, 9, a second brake, 10, an auxiliary driving motor, 11, a second sun gear, 12, an overrunning clutch, 13, a second transmission gear, 14, a first sun gear, 15 and a differential mechanism.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Example 1
Referring to fig. 1, the multimode coupling driving system of the double-drive source and the double-row planetary gear train for the automobile comprises a main driving motor 1, an auxiliary driving motor 10, a first row of planetary gear mechanisms, a second row of planetary gear mechanisms, a first brake 5, a second brake 9 and an overrunning clutch 12.
The first row of planetary gear mechanism comprises a first planet carrier 3, a first planet wheel 6 and a first sun wheel 13. The second row of planetary gear mechanism comprises a second planet carrier 7, a second planet wheel 8 and a second sun gear 11, the first row of planetary gear mechanism and the second row of planetary gear mechanism share a gear ring 4, and a first sun gear 14 and the second sun gear 11 are connected through an overrunning clutch 12. The main driving motor 1 drives the first sun gear 14 to move, and the auxiliary driving motor 10 drives the second sun gear 11 to move; the power output shafts of the main driving motor 1 and the auxiliary driving motor 10 are coaxial with the axes of the second sun gear 11 and the first sun gear 14.
The first brake 5 is used for braking the gear ring 4, and the second brake 9 is used for braking the second planet carrier 8; the first planet carrier 3 of the first row of planetary gear mechanisms is the output of power. And a differential 15, wherein the first planet carrier 3 transmits power to the differential 15 through the first transmission gear 2 and the second transmission gear 13.
Due to the working characteristics of the overrunning clutch 12, the overrunning clutch 12 can transmit the power of the auxiliary driving motor 9 to the first sun gear 14 only when the rotation directions and the rotation speeds of the second sun gear 11 of the second row of planetary gear mechanism and the first sun gear 14 of the first row of planetary gear mechanism are the same, otherwise, the auxiliary driving motor and the first sun gear 14 are in a relative sliding state, and the automatic clutch function can be realized by utilizing the characteristics of the overrunning clutch, so that only two executing elements needing to be controlled in the system, namely the first brake 5 and the second brake 9, can enable the system to work in a single-motor driving mode, a double-motor torque coupling working mode and a double-motor rotation speed coupling working mode by controlling the two brakes.
Three operation modes of single motor drive, dual motor rotational speed coupling drive, and dual motor torque coupling drive will be described with embodiment 1 as an example.
1) Single motor drive mode
When the first brake 5 is engaged, i.e. the ring gear 4 is braked, the system is in single motor drive mode, in which the vehicle is driven solely by the main drive motor 1, the main drive motor 1 drives the first sun gear 14, which is then transmitted to the first planet carrier 3 of the first row of planetary gear mechanisms, and the power is then transmitted to the differential 15 via the primary gear reduction mechanism. The power transmission path is shown in fig. 2.
2) Dual motor torque coupling mode
When the first brake 5 is engaged and the second brake 9 is disengaged, the system operates in the dual motor torque coupling mode, in which the output torques of the two motors are superimposed on the first sun gear 14 by controlling the rotation directions and rotation speeds of the main drive motor 1 and the auxiliary drive motor 10 to be the same, and then the power is output through the first carrier 3 of the first planetary gear mechanism. When the system is in the single motor driving mode and the second brake 9 is disconnected, the auxiliary driving motor 10 is started, the rotating speed of the auxiliary driving motor 10 is adjusted to be the same as the rotating speed of the main driving motor 1, the overrunning clutch is connected, and the system enters a torque coupling mode. The power transmission path is shown in fig. 3.
3) Dual motor speed coupling mode
When the first brake 5 is disconnected and the second brake 9 is engaged, the system is in a dual-motor speed coupling mode, the main driving motor 1 drives the first sun gear 14, the auxiliary driving motor can drive the ring gear 4 through the second sun gear 11 because the second planet carrier 7 of the second row of planetary gear mechanism is braked, and power is output through the first planet carrier 3 of the first row of planetary gear mechanism. The rotational speed of the first carrier 3 at this time is a linear function of the rotational speeds of the main drive motor 1 and the auxiliary drive motor 10. And because of the motion relationship of the planetary gear mechanism, the main driving motor 1 and the auxiliary driving motor 10 are reversely rotated at the moment, so that the overrunning clutch 12 is in a disconnected state. The power transmission path is shown in fig. 4.
The above three different operation modes and the operation states of the components are shown in table 1.
TABLE 1 working states of parts in different working modes
Figure GDA0003475693610000061
Example 2
A multi-mode coupling driving system of a double-driving source and a double-row planetary gear train for an automobile comprises a main internal combustion engine, an auxiliary internal combustion engine, a first row of planetary gear mechanisms, a second row of planetary gear mechanisms, a first brake 5, a second brake 9 and an overrunning clutch 12.
The first row of planetary gear mechanism comprises a first planet carrier 3, planet wheels 6 and a first sun wheel 14. The second row of planetary gear mechanism comprises a second planet carrier 7 and a second sun gear 11, the first row of planetary gear mechanism and the second row of planetary gear mechanism share a gear ring 4, and a first sun gear 14 and the second sun gear 11 are connected through an overrunning clutch 12. The main internal combustion engine drives the first sun gear 14 to move, and the auxiliary internal combustion engine drives the second sun gear 11 to move; the power output shafts of the main driving motor 1 and the auxiliary driving motor 10 are coaxial with the axes of the second sun gear 11 and the first sun gear 14.
The first brake 5 is used for braking the gear ring 4, and the second brake 9 is used for braking the second planet carrier 7; the first planet carrier 3 of the first row of planetary gear mechanism is the output of power. And the differential mechanism 15 is further included, and the first planet carrier 3 transmits power to the differential mechanism 15 through the first transmission gear 2 and the second transmission gear 12.
This embodiment can realize the same functions as embodiment 1, and will not be described herein again.
Example 3
An automobile comprises the automotive dual-drive source and double-row planetary gear train multi-mode coupling drive system in the embodiment 1 or the embodiment 2.
The automobile comprises the automotive dual-drive source and dual-row planetary gear train multi-mode coupling drive system in the embodiment 1 or the embodiment 2, so that the automobile also has the functions, and the details are not repeated herein.
The invention can realize three working modes of single motor drive, rotating speed coupling drive and torque coupling drive by only needing two executing elements, and has simple control; and two motors and the planetary gear mechanism are coaxially arranged, so that the structure is compact.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes performed by the present specification and the accompanying drawings, or directly or indirectly applied to other related system fields, are included in the scope of the present invention.

Claims (6)

1. The utility model provides a double drive source and double planetary gear train multimode coupling actuating system for car which characterized in that:
the device comprises a main driving source, an auxiliary driving source, a first row of planetary gear mechanisms, a second row of planetary gear mechanisms, a first brake (5), a second brake (9) and an overrunning clutch (12);
the first row of planetary gear mechanism comprises a first planet carrier (3), a first planet wheel (6) and a first sun wheel (14),
the second row of planetary gear mechanisms comprise a second planet carrier (8), a second planet gear (7) and a second sun gear (11), the first row of planetary gear mechanisms and the second row of planetary gear mechanisms share a gear ring (4), and the first sun gear (14) and the second sun gear (11) are connected through an overrunning clutch (12);
the main driving source drives the first sun gear (14) to move, and the auxiliary driving source drives the second sun gear (11) to move;
the first brake (5) is used for braking the gear ring (4), and the second brake (9) is used for braking the second planet carrier (8);
the first planet carrier (3) of the first row of planetary gear mechanisms is the output end of the power.
2. The multimode coupling driving system of the double driving sources and the double rows of planetary gear trains for the automobile as claimed in claim 1, characterized in that:
the planetary gear transmission mechanism further comprises a differential (15), and the first planet carrier (3) transmits power to the differential (15) through the first transmission gear (2) and the second transmission gear (13).
3. The multimode coupling driving system of the double-drive source and the double-row planetary gear train for the automobile as claimed in claim 2, wherein:
and the power output shafts of the main driving source and the auxiliary driving source are coaxial with the axes of the second sun gear (11) and the first sun gear (14).
4. The multimode coupling drive system of the double-drive source and the double-row planetary gear train for the automobile according to any one of claims 1 to 3, characterized in that:
the main driving source and the auxiliary driving source are respectively a main driving motor (1) and an auxiliary driving motor (10).
5. The multimode coupling driving system of the double driving sources and the double row planetary gear train for the automobile according to any one of claims 1 to 3, characterized in that:
the main driving source and the auxiliary driving source are internal combustion engines.
6. An automobile, characterized in that:
the multimode coupling drive system of the double-drive source and the double-row planetary gear train for the automobile, which comprises any one of the claims 1 to 5.
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