CN116252614A - Dual-motor multimode series-parallel hybrid power system - Google Patents

Dual-motor multimode series-parallel hybrid power system Download PDF

Info

Publication number
CN116252614A
CN116252614A CN202111499355.6A CN202111499355A CN116252614A CN 116252614 A CN116252614 A CN 116252614A CN 202111499355 A CN202111499355 A CN 202111499355A CN 116252614 A CN116252614 A CN 116252614A
Authority
CN
China
Prior art keywords
clutch
output
motor
transmission
mode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202111499355.6A
Other languages
Chinese (zh)
Inventor
柳建新
卢威
应红亮
谭飞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Prestolite Electric Weifang Ltd
Original Assignee
Prestolite Electric Weifang Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Prestolite Electric Weifang Ltd filed Critical Prestolite Electric Weifang Ltd
Priority to CN202111499355.6A priority Critical patent/CN116252614A/en
Publication of CN116252614A publication Critical patent/CN116252614A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/26—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the motors or the generators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/22—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs
    • B60K6/38—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by apparatus, components or means specially adapted for HEVs characterised by the driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/42—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs characterised by the architecture of the hybrid electric vehicle
    • B60K6/44—Series-parallel type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • 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

Landscapes

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

Abstract

The double-motor multimode series-parallel hybrid power system is connected with driving wheels of an automobile and provides power output and is characterized by comprising an engine, a generator, a driving motor, a first clutch, a second clutch, a third clutch, a first reduction/transmission and a second reduction/transmission; the engine is connected with the generator through the first clutch, the generator is connected with the first reduction/transmission through the second clutch, and the first reduction/transmission is a first path of power output; the driving motor is connected with the second reduction/transmission through the third clutch, and the second reduction/transmission is a second path of power output; the first path of power output and the second path of power output are coupled and output through gears; the double-motor multimode hybrid power system comprises pure electric output and hybrid power output. The invention has small volume, multiple functional modes and high fuel saving rate.

Description

Dual-motor multimode series-parallel hybrid power system
Technical Field
The invention relates to a hybrid power system, in particular to a double-motor multimode hybrid power system.
Background
With the increasing proliferation of new energy vehicles, particularly recent research on hybrid systems has been rescheduled. The mainstream hybrid power system in the prior art mainly comprises a Toyota Purui planetary gear system configuration, but the design of a planetary gear transmission is complex, and the failure rate is relatively high. In addition, the range-extending system has a relatively simple system structure, but the power performance advantages of the double motors are not exerted, and meanwhile, the engine is not directly involved in the whole vehicle driving, so that the driving efficiency is low.
Disclosure of Invention
The invention aims to solve the technical problem of providing a double-motor multi-mode hybrid power system aiming at the defects in the prior art.
In order to achieve the above object, the present invention provides a dual-motor multimode hybrid system connected with driving wheels of an automobile and providing power output, wherein the dual-motor multimode hybrid system includes an engine, a generator, a driving motor, a first clutch, a second clutch, a third clutch, a first reduction/transmission and a second reduction/transmission; the engine is connected with the generator through the first clutch, the generator is connected with the first reduction/transmission through the second clutch, and the first reduction/transmission is a first path of power output; the driving motor is connected with the second reduction/transmission through the third clutch, and the second reduction/transmission is a second path of power output; the first path of power output and the second path of power output are coupled and output through gears;
the double-motor multimode hybrid power system comprises pure electric output and hybrid power output.
The dual-motor multimode hybrid power system comprises a single-motor pure electric output mode, a dual-motor pure electric output mode and a series range-extending mode.
In the above dual-motor multimode hybrid power system, in the single-motor pure electric output mode, the input torque of the whole vehicle end=the output torque of the driving motor after the second speed reduction/transmission speed reduction and torque increase.
In the above dual-motor multi-mode hybrid system, in the dual-motor pure electric output mode, the input torque of the whole vehicle end=the output torque of the driving motor after the second speed reduction/transmission speed reduction and torque increase+the output torque of the generator after the first speed reduction/transmission speed reduction and torque increase.
According to the dual-motor multi-mode hybrid power system, in the single-motor pure electric output mode, the first clutch and the second clutch are opened, the third clutch is closed, and the driving motor outputs power to the driving wheels to drive the vehicle to run after the speed and the torque of the driving motor are reduced through the second speed reduction/transmission.
According to the dual-motor multi-mode series-parallel hybrid power system, in the dual-motor pure electric power output mode, the first clutch is opened, the second clutch and the third clutch are closed, the generator reduces speed and increases torque through the first speed reduction/transmission, the driving motor reduces speed and increases torque through the second speed reduction/transmission, and power of the generator and the driving motor is output to the driving wheels to drive a vehicle to run after being coupled and overlapped at the output ends of the first speed reduction/transmission and the second speed reduction/transmission.
In the dual-motor multi-mode series-parallel hybrid power system, when in the series range-increasing mode, the first clutch and the third clutch are closed, the second clutch is opened, and the power of the driving motor is output to the driving wheels to drive the vehicle to run after the speed and the torque of the driving motor are reduced through the second speed reduction/transmission; the engine drives the generator to generate electricity.
The double-motor multimode series-parallel hybrid power system comprises a hybrid power output system, wherein the hybrid power output system comprises an engine direct-drive mode and a multi-power common-drive mode.
According to the dual-motor multi-mode hybrid power system, when the engine is in the direct drive mode, the third clutch is opened, the first clutch and the second clutch are closed, the generator idles in a follow-up mode, and the power of the engine is output to the driving wheels to drive the vehicle to run after the first speed reduction/transmission is used for reducing speed and increasing torque.
In the dual-motor multi-mode hybrid power system, during the multi-power driving mode, the first clutch, the second clutch and the third clutch are simultaneously closed, the driving motor reduces speed and increases torque through the second speed reduction/transmission, torque of the engine and torque of the generator are overlapped and then reduced and increased through the first speed reduction/transmission, and power of the engine, the power of the generator and the power of the driving motor are output to the driving wheels to drive the vehicle to run after being coupled and overlapped at the output ends of the first speed reduction/transmission and the second speed reduction/transmission.
The invention has the technical effects that:
the invention carries out energy coupling with the speed reducer through a plurality of clutches; the pure electric mode can use double-motor driving to enhance the power performance of the whole vehicle, and meanwhile, the mutual decoupling of the torque of the double motors is beneficial to improving the efficiency of the system; the function of a two-gear gearbox is realized by using a double-motor system; the three power sources can be driven together and the engine can be driven independently in the hybrid power mode, so that the hybrid power system is favorable for adapting to changeable urban application scenes, and the energy-saving and emission-reducing effects are better; the two-way driving mode realizes redundant design, and when one of the two ways fails, the function of vehicle limping back to the factory can be realized. Compared with the prior art, the invention has the advantages of small volume, multiple functional modes, high fuel saving rate and the like.
The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein reference numerals are used to refer to
1. Engine with a motor
2. Electric generator
3. Driving motor
4. First clutch
5. Second clutch
6. Third clutch
7. First reduction/transmission
8. Second reduction/transmission
9. Driving wheel
Detailed Description
The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:
referring to fig. 1, fig. 1 is a schematic structural diagram of an embodiment of the present invention. The double-motor multimode series-parallel hybrid power system is connected with driving wheels 9 of an automobile and provides power output, and comprises an engine 1, a generator 2, a driving motor 3, a first clutch 4, a second clutch 5, a third clutch 6, a first reduction/transmission 7 and a second reduction/transmission 8; the engine 1 is connected with the generator 2 through the first clutch 4, the generator 2 is connected with the first reduction/transmission 7 through the second clutch 5, and the first reduction/transmission 7 is a first power output; the driving motor 3 is connected with the second reduction/transmission 8 through the third clutch 6, and the second reduction/transmission 8 is a second path of power output; the first path of power output and the second path of power output are coupled and output through gears; the double-motor multimode hybrid power system comprises pure electric output and hybrid power output.
The pure electric output comprises a single-motor pure electric output mode, a double-motor pure electric output mode and a series range-extending mode. In the single-motor pure electric output mode, the first clutch 4 and the second clutch 5 are opened, the third clutch 6 is closed, and the driving motor 3 outputs power to the driving wheels 9 to drive the vehicle to run after reducing speed and increasing torque through the second speed reduction/transmission 8. During the pure electric motor output mode, the first clutch 4 is opened, the second clutch 5 and the third clutch 6 are closed, the generator 2 is used for reducing speed and increasing torque through the first speed reduction/transmission 7, the driving motor 3 is used for reducing speed and increasing torque through the second speed reduction/transmission 8, and the power of the generator 2 and the driving motor 3 is output to the driving wheel 9 to drive the vehicle to run after being coupled and overlapped at the output ends of the first speed reduction/transmission 7 and the second speed reduction/transmission 8. In the series range-increasing mode, the first clutch 4 and the third clutch 6 are closed, the second clutch 5 is opened, and the power of the driving motor 3 is output to the driving wheel 9 to drive the vehicle to run after the speed and the torque of the driving motor are reduced through the second speed reducing/reducing transmission 8; the engine 1 drives the generator 2 to generate electricity. In the single-motor pure electric mode, the input torque of the whole vehicle end=the output torque of the driving motor 3 after the speed and torque of the driving motor are reduced by the second speed reduction/transmission 8. In the dual-motor pure electric mode, the input torque of the whole vehicle end=the output torque of the driving motor 3 after the speed and torque of the driving motor are reduced by the second speed reduction/transmission 8+the output torque of the generator 2 after the speed and torque of the driving motor are reduced by the first speed reduction/transmission 7.
Wherein the hybrid power output includes an engine direct drive mode and a multi-power co-drive mode. In the engine direct drive mode, the third clutch 6 is opened, the first clutch 4 and the second clutch 5 are closed, the generator 2 idles in a follow-up mode, and the power of the engine 1 is output to the driving wheels 9 to drive the vehicle to run after being reduced in speed and increased in torque through the first speed reduction/transmission 7. In the multi-power driving mode, the first clutch 4, the second clutch 5 and the third clutch 6 are simultaneously closed, the driving motor 3 reduces speed and increases torque through the second speed reduction/transmission 8, the torque of the engine 1 and the torque of the generator 2 are overlapped and then reduced and increased through the first speed reduction/transmission 7, and the power of the engine 1, the power of the generator 2 and the power of the driving motor 3 are coupled and overlapped at the output ends of the first speed reduction/transmission 7 and the second speed reduction/transmission 8 and then output to the driving wheels 9 to drive the vehicle to run.
The operation modes in this embodiment, and the operation states of the clutches in the different modes are shown in table 1:
table 1 table of modes of operation of hybrid powertrain system
Figure BDA0003402161940000051
Each mode in the table above, wherein the specific implementation of each mode is as follows:
single motor pure electric output mode of pure electric output: during vehicle start, the first clutch 4 and the second clutch 5 are opened, and the third clutch 6 is closed. Because the second clutch 5 disconnects the engine 1 and the generator 2 and does not participate in driving, the driving motor 3 outputs power to the wheels to drive the vehicle to run after reducing speed and increasing torque through the second speed reduction/transmission 8, and only the driving motor 3 participates in pure electric starting running in the mode, the pure electric system efficiency of the whole vehicle can be better improved.
Pure electric output mode of pure electric output with double motors: when the vehicle requires a large torque output during climbing, the first clutch 4 is opened, and the second clutch 5 and the third clutch 6 are closed. Because the first clutch 4 is opened to enable the engine 1 not to participate in driving, the generator 2 is used for reducing speed and increasing torque through the first speed reduction/transmission 7, the driving motor 3 is used for reducing speed and increasing torque through the second speed reduction/transmission 8, the power of the double motors is output to the wheel drive vehicle to run after the output ends of the first speed reduction/transmission 7 and the second speed reduction/transmission 8 are coupled and overlapped, and in the mode, the driving motor 3 and the generator 2 participate in pure electric running together, so that the pure electric capacity of the vehicle is greatly improved.
Series range extending mode of pure electric output: when the vehicle is running in electric only with the drive motor 3, the first clutch 4 and the second clutch 5 are open and the third clutch 6 is closed. If the current battery is not enough, the first clutch 4 and the third clutch 6 are closed, and the second clutch 5 is opened. The driving motor 3 outputs power to wheels to drive the vehicle to run after reducing speed and increasing torque through the second speed reducing/transmitting device 8; the rotating speed of the engine 1 is controlled in a fixed rotating speed interval, the torque of the generator 2 is controlled under a target torque, and the engine 1 drives the generator 2 to generate electricity. On the one hand, the normal running of the vehicle is ensured under the mode, meanwhile, the stable electric quantity of the battery can be ensured, and meanwhile, the engine 1 can work in a working interval with better economic emission because of the decoupling of the rotation speed (the adjustable rotation speed interval).
Hybrid output engine 1 direct drive mode: when the vehicle runs to the middle and high vehicle speed, the third clutch 6 turns on the driving motor 3 and does not participate in the whole vehicle running; the first clutch 4 and the second clutch 5 are closed, the generator 2 idles in a follow-up mode, and the power of the engine 1 is output to wheels to drive the vehicle to run after the speed and the torque of the engine are reduced through the first speed reduction/transmission 7. In the mode, the rotating speed of the engine 1 works in a higher rotating speed interval to directly participate in the whole vehicle driving running, and the engine has better economy and emission performance.
Hybrid output multi-power common drive mode: when the vehicle is driven to a middle-high speed and overtaking or climbing is required, the whole vehicle needs stronger power demand, and the first clutch 4, the second clutch 5 and the third clutch 6 are simultaneously closed. The driving motor 3 is used for reducing speed and increasing torque through the second speed reducing/reducing transmission 8, the torque of the engine 1 and the torque of the generator 2 are added, then the speed and the torque are reduced through the first speed reducing/reducing transmission 7, the power of the engine 1, the power of the generator 2 and the power of the driving motor 3 are coupled and added at the output ends of the first speed reducing/reducing transmission 7 and the second speed reducing/reducing transmission 8, and then the power is output to wheels to drive the vehicle to run. When the battery capacity of the whole vehicle is insufficient, the load of the engine 1 is increased, and the engine 1 drives the vehicle to run and drags the generator 2 to generate electricity. Under the mode, the engine 1, the generator 2 and the driving motor 3 participate in the running of the vehicle at the same time, and the working mode of the whole vehicle is strong in adjustability and meets different working condition demands.
The invention has the following advantages:
when the vehicle runs, the second clutch 5 and the third clutch 6 are closed and opened, so that the assembly system can work in a single motor driving or double motor driving mode, the torque required by the whole vehicle can be decoupled in a single motor or double motor participation mode, for example, the high-efficiency torque interval of the single motor is about 1000Nm, the whole vehicle requirement is 1000Nm, and the motor high efficiency can be ensured by the single motor operation; if the whole vehicle needs 2000Nm, the double motors can work, and each motor outputs 1000Nm to work in a high-efficiency torque zone, so that the motor system is ensured to work in the high-efficiency zone for a long time.
The dual-motor pure electric mode in pure electric output can enhance the power performance of the whole vehicle and is beneficial to the working condition requirements such as climbing. In the single-motor pure electric mode in pure electric output, only the driving motor 3 participates in running, and the input torque of the whole vehicle end=the output torque of the driving motor 3 after the speed and torque of the driving motor 3 are reduced by the second speed reduction/transmission 8; when the second clutch 5 is closed at the same time, the whole vehicle enters a double-motor pure electric mode in a pure electric mode, the driving motor 3 and the generator 2 participate in pure electric running at the same time, and the input torque of the whole vehicle end = the output torque of the driving motor 3 after the speed reduction and torque increase of the second speed reduction/transmission 8 and the output torque of the generator 2 after the speed reduction and torque increase of the first speed reduction/transmission 7; thereby realizing the function of the two-gear gearbox.
When the three groups of clutches are simultaneously closed, the whole vehicle is in a hybrid power multi-power driving mode. In the mode, the engine 1 participates in whole vehicle driving, and the driving motor 3 is used as supplementary power to meet the strong power overtaking requirement of the whole vehicle; meanwhile, the generator 2 can work in a driving state to supplement power and can also work in a power generation state to supplement the electric quantity requirement of the whole vehicle battery. The device is favorable for adapting to changeable city working conditions, and meanwhile, because the torque of the engine 1 can be compensated through the generator 2, the device can work in a higher efficiency interval for a long time, and the device is favorable for improving the performance of the whole vehicle.
When the driving motor 3 fails, the single-motor pure electric mode of pure electric output fails, the third clutch 6 is opened, the first clutch 4 and the second clutch 5 are closed, and the engine 1 and the generator 2 directly participate in the whole vehicle driving; when the electric drive system fails at the same time, the mode can still ensure that the engine 1 works normally to drive the whole vehicle to run. And the function of vehicle limp back to the factory is realized through a two-way redundancy design. The engine 1 and the generator 2 are used as one-way driving output, the driving motor 3 is used as one-way output, and when any one of the two-way output is abnormal, the other one can enter a limp-home mode to continuously drive the whole vehicle to normally run.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (10)

1. The double-motor multimode series-parallel hybrid power system is connected with driving wheels of an automobile and provides power output and is characterized by comprising an engine, a generator, a driving motor, a first clutch, a second clutch, a third clutch, a first reduction/transmission and a second reduction/transmission; the engine is connected with the generator through the first clutch, the generator is connected with the first reduction/transmission through the second clutch, and the first reduction/transmission is a first path of power output; the driving motor is connected with the second reduction/transmission through the third clutch, and the second reduction/transmission is a second path of power output; the first path of power output and the second path of power output are coupled and output through gears;
the double-motor multimode hybrid power system comprises pure electric output and hybrid power output.
2. The dual-motor, multi-mode, parallel-series hybrid system of claim 1, wherein the electric-only output comprises a single-motor, electric-only output mode, a dual-motor, electric-only output mode, and a series range-extending mode.
3. The two-motor multi-mode hybrid system according to claim 2, wherein in the single-motor pure electric output mode, the input torque at the whole vehicle end=the output torque of the driving motor after the second reduction/transmission is reduced in speed and increased in torque.
4. The two-motor multi-mode hybrid system of claim 2, wherein in the two-motor pure electric output mode, the input torque at the vehicle end=the output torque of the driving motor after the second speed reduction/transmission is reduced and the torque is increased+the output torque of the generator after the first speed reduction/transmission is reduced and the torque is increased.
5. The dual-motor multi-mode hybrid system of claim 2, wherein in the single-motor pure electric output mode, the first clutch and the second clutch are opened, the third clutch is closed, and the driving motor outputs power to the driving wheels to drive the vehicle to run after the speed and torque of the driving motor are reduced through the second speed reducing/transmitting device.
6. The dual-motor multi-mode series-parallel hybrid system according to claim 2, wherein in the dual-motor pure electric output mode, the first clutch is opened, the second clutch and the third clutch are closed, the generator is used for reducing speed and increasing torque through the first speed reduction/transmission, the driving motor is used for reducing speed and increasing torque through the second speed reduction/transmission, and power of the generator and the driving motor is output to the driving wheels to drive the vehicle to run after being coupled and overlapped at output ends of the first speed reduction/transmission and the second speed reduction/transmission.
7. The dual-motor multi-mode series-parallel hybrid system according to claim 2, wherein in the series range-increasing mode, the first clutch and the third clutch are closed, the second clutch is opened, and the power of the driving motor is output to the driving wheels to drive the vehicle to run after being reduced in speed and increased in torque through the second speed reduction/transmission; the engine drives the generator to generate electricity.
8. The two-motor, multi-mode, series-parallel hybrid system of claim 1, wherein the hybrid output comprises an engine direct drive mode and a multi-power co-drive mode.
9. The dual-motor multi-mode series-parallel hybrid system according to claim 8, wherein the third clutch is opened, the first clutch and the second clutch are closed, the generator idles in a follow-up mode, and the power of the engine is output to the driving wheels to drive the vehicle to run after the first speed reduction/transmission is used for reducing speed and increasing torque.
10. The dual-motor multi-mode hybrid system of claim 8, wherein in the multi-power driving mode, the first clutch, the second clutch and the third clutch are simultaneously closed, the driving motor is used for reducing speed and increasing torque through the second speed reduction/transmission, the torque of the engine and the torque of the generator are added and then reduced and increased through the first speed reduction/transmission, and the power of the engine, the power of the generator and the power of the driving motor are output to the driving wheels to drive the vehicle to run after being coupled and added at the output ends of the first speed reduction/transmission and the second speed reduction/transmission.
CN202111499355.6A 2021-12-09 2021-12-09 Dual-motor multimode series-parallel hybrid power system Pending CN116252614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111499355.6A CN116252614A (en) 2021-12-09 2021-12-09 Dual-motor multimode series-parallel hybrid power system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111499355.6A CN116252614A (en) 2021-12-09 2021-12-09 Dual-motor multimode series-parallel hybrid power system

Publications (1)

Publication Number Publication Date
CN116252614A true CN116252614A (en) 2023-06-13

Family

ID=86684832

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111499355.6A Pending CN116252614A (en) 2021-12-09 2021-12-09 Dual-motor multimode series-parallel hybrid power system

Country Status (1)

Country Link
CN (1) CN116252614A (en)

Similar Documents

Publication Publication Date Title
CN100595085C (en) Plug-in type integrated actuating electric generator hybrid power car driving system
CN107082014B (en) A kind of automobile multimodal fusion dynamic coupling device
CN210526287U (en) Two grades of hybrid coupling systems and vehicle
CN106004409B (en) Modularized hybrid power coupling device
CN112590530A (en) Dual-motor hybrid power driving device and vehicle with same
CN108099578B (en) Single-motor hybrid electric vehicle multi-mode coupling power transmission system
CN109228842B (en) Driving system of hybrid electric vehicle
CN111319449A (en) Hybrid power coupling system and vehicle
CN111114284A (en) Power split hybrid power coupling system and vehicle
CN113815399A (en) Double-motor hybrid system with two gears
CN111731089A (en) Two series-parallel type oil-electricity hybrid power driving devices suitable for commercial vehicle
CN110758084A (en) Multi-mode power coupling system of single-motor electric automobile
CN109383269B (en) Differential stepless transmission system and application thereof
CN111688470B (en) Series-parallel configuration plug-in hybrid power system and control method thereof
CN112248790A (en) Multi-mode hybrid power transmission device and control method thereof
CN108819698B (en) Single-motor hybrid electric vehicle multi-mode coupling power transmission system
CN217623106U (en) Double-motor two-gear planet row hybrid transmission
CN210760228U (en) Hybrid drive device and vehicle
CN110789328B (en) Hybrid power drive system
CN116252614A (en) Dual-motor multimode series-parallel hybrid power system
CN114211950A (en) Hybrid power system and vehicle
CN111114279B (en) Hybrid power driving system and vehicle
CN108638835B (en) Hybrid power driving system
CN112460210A (en) Hybrid power transmission for motor vehicle and using method thereof
CN111301146A (en) Hybrid power coupling system and vehicle

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination