CN109664747A - A kind of driving device and hybrid power driving method for hybrid vehicle - Google Patents

A kind of driving device and hybrid power driving method for hybrid vehicle Download PDF

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Publication number
CN109664747A
CN109664747A CN201811648875.7A CN201811648875A CN109664747A CN 109664747 A CN109664747 A CN 109664747A CN 201811648875 A CN201811648875 A CN 201811648875A CN 109664747 A CN109664747 A CN 109664747A
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CN
China
Prior art keywords
gear
clutch
power
mode
drive
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Granted
Application number
CN201811648875.7A
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Chinese (zh)
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CN109664747B (en
Inventor
黎青青
杨林
王若愚
田萌
李双清
韦虹
李军
王瑞平
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
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Zhejiang Geely Holding Group Co Ltd
Ningbo Geely Royal Engine Components Co Ltd
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Priority to CN201811648875.7A priority Critical patent/CN109664747B/en
Publication of CN109664747A publication Critical patent/CN109664747A/en
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Publication of CN109664747B publication Critical patent/CN109664747B/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
    • 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
    • B60K6/442—Series-parallel switching type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K6/00—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00
    • B60K6/20—Arrangement or mounting of plural diverse prime-movers for mutual or common propulsion, e.g. hybrid propulsion systems comprising electric motors and internal combustion engines ; Control systems therefor, i.e. systems controlling two or more prime movers, or controlling one of these prime movers and any of the transmission, drive or drive units Informative references: mechanical gearings with secondary electric drive F16H3/72; arrangements for handling mechanical energy structurally associated with the dynamo-electric machine H02K7/00; machines comprising structurally interrelated motor and generator parts H02K51/00; dynamo-electric machines not otherwise provided for in H02K see H02K99/00 the prime-movers consisting of electric motors and internal combustion engines, e.g. HEVs
    • B60K6/50—Architecture of the driveline characterised by arrangement or kind of transmission units
    • B60K6/54—Transmission for changing ratio
    • B60K6/547—Transmission for changing ratio the transmission being a stepped gearing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/02—Conjoint control of vehicle sub-units of different type or different function including control of driveline clutches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W10/00—Conjoint control of vehicle sub-units of different type or different function
    • B60W10/10—Conjoint control of vehicle sub-units of different type or different function including control of change-speed gearings
    • B60W10/11—Stepped gearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W30/00—Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
    • B60W30/18—Propelling the vehicle
    • B60W30/19—Improvement of gear change, e.g. by synchronisation or smoothing gear shift
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/02—Clutches
    • B60W2710/021—Clutch engagement state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60W—CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
    • B60W2710/00—Output or target parameters relating to a particular sub-units
    • B60W2710/10—Change speed gearings
    • B60W2710/1005—Transmission ratio engaged
    • 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)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Automation & Control Theory (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Hybrid Electric Vehicles (AREA)

Abstract

The present invention provides a kind of driving device for hybrid vehicle and hybrid power driving methods.The driving device includes: to be provided with input shaft gear on primary input axis；First clutch and second clutch are separately positioned on the two sides of input shaft gear；First output shaft is arranged to parallel with primary input axis, is provided with first gear on the first output shaft；Second output shaft is arranged to be provided with second gear on and the second output shaft parallel with primary input axis, and second gear is engaged with first gear；Drive motor shaft is arranged to parallel with primary input axis, third gear and the 4th gear is provided in drive motor shaft, third gear is engaged with second gear；Third clutch is arranged in drive motor shaft；Engagement is set in drive motor shaft, and initial position is arranged on the 4th gear, for simultaneously engaging with third gear and the 4th gear.The present invention incorporates the power source of engine, generator and driving motor, and intelligent optimal combination can be carried out according to power demand.

Description

A kind of driving device and hybrid power driving method for hybrid vehicle
Technical field
The present invention relates to hybrid power actuation techniques field more particularly to a kind of driving devices for hybrid vehicle And hybrid power driving method.
Background technique
Hybrid drive device is exactly, according to power demand, to carry out intelligence by control by motor in conjunction with engine Change combination, select best power source stream output route output power, drives vehicle.Power is no longer only provided by internal combustion engine, a part Power is undertaken by battery-electric motor system, can thus do traditional combustion engine small, is conducive to the drop of traditional combustion engine cost It is low.And this mixed power plant can make engine lack work, and most of work is preferable in fuel economy Section.Which improves its fuel economy, reduce discharge.
There are many different schemes, every kind of scheme its advantage and disadvantage for automobile hybrid power plant at present.For example, the first side Case uses two groups of teeth wheel transmission device, and is disconnected by another clutch while a clutch engagement, realizes transmission speed The switching of ratio improves the accelerating ability and climbing capacity of vehicle, reduces the cost of motor.But the gearshift structure is multiple It is miscellaneous, and need the mode of hollow shaft sleeve axis come realize two groups of teeth wheel be driven, it is at high cost.Due to internal combustion engine and the complete machine of generator Tool coupling, internal combustion engine cannot function as one it is independent driving vehicle power source, and when main clutch engagement after, generator with The revolving speed that driving motor just needs to maintain like, therefore, engine can be increased to very high revolving speed when hybrid mode.Hair Motivation offspeed economic zone, fuel economy are deteriorated.
Second scheme is similar with the first scheme, is all to connect a clutch after internal combustion engine is coupled with generator complete mechanical Device, the difference is that the revolving speed of internal combustion engine no longer needs as the revolving speed of motor, can work when hybrid power drives Optimal economic section.But still complete mechanical couples for the technical solution of the patent disclosure, internal combustion engine and generator, and internal combustion engine cannot As the power source of an independent driving vehicle, and internal combustion engine has been all made of single transmission speed to wheel and motor to wheel Than, although structure is simple, the shortcomings that there are motor costs is high, automobile acceleration capacity difference is low with climbing capacity etc..
The third scheme, the program improve the shortcomings that second scheme.It is set between internal combustion engine and generator Set power release mechanism, realize it is full decoupled between generator and internal combustion engine, can in the state that internal combustion engine stops working Make generator and motor two-way kinetic force while driving vehicle.And it uses the realization of synchronizer transmission speed ratio switching device to change Gear, will appear the pause and transition in rhythm or melody sense of power interruption in shift process, the comfort type driven be influenced, although with generator output power The power interruption of synchronizer shift process is compensated.But can still it go out when electricity provides two motor operatings as low as deficiency Existing this phenomenon.
Summary of the invention
It is an object of the present invention to solve mixed power plant in the prior art in the power when switching gear Disconnected problem.
A further object of the invention is the radial direction that solve how to reduce in the prior art entire driving device Size reduces cost.
Another object of the present invention is to make sufficient in electricity and reduce engine direct when driving on a highway The energy loss of drive.
Particularly, the present invention provides a kind of driving device for hybrid vehicle, including engine, generator and Driving motor, the driving device further include:
Primary input axis is provided with input shaft gear on the primary input axis for receiving the torque of the engine；
First clutch and second clutch, are separately positioned on the two sides of the input shaft gear, the engine with The generator is coaxially connected by the first clutch and the second clutch；
First output shaft, be arranged to it is parallel with the primary input axis and arranged apart with the primary input between centers, described First gear is provided on one output shaft；
Second output shaft, be arranged to it is parallel with the primary input axis and arranged spaced apart with first output shaft, it is described Second gear is provided on second output shaft, the second gear is engaged with the first gear；
Drive motor shaft, for receiving the torque of the driving motor, and be arranged to it is parallel with the primary input axis and with Second output shaft is arranged spaced apart, and third gear and the 4th gear, the third tooth are provided in the drive motor shaft Wheel is engaged with the second gear；
Third clutch is arranged in the drive motor shaft；
Clutch collar is arranged in the drive motor shaft, and initial position is arranged on the 4th gear, for simultaneously Engage the third gear and the 4th gear.
Optionally, it is additionally provided with the 5th gear on first output shaft, the 5th gear and the first gear are same Axis；
The driving device further includes differential mechanism, and the input shaft gear passes through the first gear and the 5th gear It is connected with the differential mechanism.
Optionally, the 6th gear is additionally provided on second output shaft；
The 7th gear is additionally provided in the drive motor shaft, the 7th gear is engaged with the 6th gear；
Optionally, eighth gear is additionally provided in the drive motor shaft, the eighth gear passes through the second gear It is connected with the first gear.
Particularly, the present invention also provides a kind of hybrid power driving methods, applied to above-mentioned driving device, feature It is, comprising:
Obtain the power demand of hybrid vehicle；
Target operational mode is determined from multiple operating modes of the hybrid vehicle according to the power demand；
Three engine, generator and driving motor power sources are combined under the target operational mode, with most Good kinetic current output route output power, to drive vehicle.
Optionally, the operating mode includes: pure electric drive mode, and the pure electric drive mode includes: corresponding to described The battery capacity abundance of hybrid vehicle and the demand power of vehicle are lower than the feelings for the power that the driving motor can be provided First operational mode of condition, wherein
Under first operational mode, first clutch and second clutch are disconnected, and select a gear pattern or second gear Mode is selectively engaged third clutch or clutch collar is selectively made to simultaneously engage with third gear and the 4th gear, makes The hybrid vehicle is operated alone in the driving motor；
Optionally, the pure electric drive mode further includes the battery capacity abundance and vehicle corresponding to the hybrid vehicle Demand power can be provided lower than the driving motor power the case where the second operational mode, wherein
In the second mode of operation, first clutch is disconnected, engages second clutch, and select a gear pattern or two Gear pattern is selectively engaged third clutch or clutch collar is selectively made to simultaneously engage with third gear and the 4th gear, The generator and the driving motor is set to drive the hybrid vehicle jointly.
Optionally, the operating mode includes: hybrid power drive mode, and the hybrid power drive mode includes: Three operational modes, wherein
Under the third operational mode, the first clutch is engaged, disconnects the second clutch, engages described the Three clutches make the clutch collar simultaneously engage with the third gear and the 4th gear, make the engine with it is described Driving motor drives the hybrid vehicle jointly；
Optionally, the hybrid power drive mode further include: the 4th operational mode, wherein
Under the 4th operational mode, the first clutch is engaged, engages the second clutch, and described in selection One gear pattern or two gear pattern are selectively engaged the third clutch or selectively make the clutch collar simultaneously The third gear and the 4th gear are engaged, makes also to drive institute while hybrid vehicle described in the engine driving Electrical power generators or the generator are stated as driving motor output power, together with the engine and the driving motor Drive wheel.
Optionally, under a gear pattern, the third clutch is engaged, and the clutch collar is made only to engage described Four gears, the power of the driving motor output is through the drive motor shaft, the third clutch, the 7th gear, the 6th tooth Wheel, the second output shaft and second gear are transferred to the first output shaft after slowing down；
Optionally, under two gear pattern, the third clutch is disconnected, and it is described to simultaneously engage with the clutch collar Third gear and the 4th gear, the power of the driving motor output is through the drive motor shaft, the 4th gear, engagement Set, third gear, eighth gear and second gear are transferred to first output shaft after slowing down.
Optionally, the operating mode includes: neutral gear park mode, wherein under the neutral gear park mode, the hair Three motivation, the generator and the driving motor power sources stop working, the first clutch, second clutch Device and the third clutch disconnect, and the clutch collar is made to engage the third gear or the 4th gear, make described Connection between three power sources and first output shaft disconnects.
Optionally, the operating mode includes: that engine direct drives mode, wherein under the engine direct drive mode, is connect The first clutch is closed, the second clutch is disconnected or engage, disconnect the third clutch and makes the clutch collar only Engage the 4th gear.
Optionally, the operating mode includes: Brake energy recovery mode, wherein in the Brake energy recovery mode Under, the first clutch is disconnected, the second clutch or the engagement third clutch is engaged or makes the clutch collar The third gear and the 4th gear are simultaneously engaged with, or in combination with second clutch and third clutch or the engagement Set simultaneously engages with the third gear and the 4th gear.
According to the solution of the present invention, the power source of engine, generator and driving motor is incorporated, it can be according to power Demand carries out intelligent optimal combination.By increasing first clutch and second clutch between generator and engine, disconnect The second clutch being connected with generator, can make sufficient in electricity and on a highway when driving, reduce what engine direct drove Energy loss.First clutch and second clutch are disconnected, while driving motor outgoing route also disconnects, and neutral gear may be implemented and stay Vehicle, the problem of being can solve when vehicle trouble that may be present needs trailer in this way because of the excessively high damage motor of potential and inverter.
In addition, by being staggeredly arranged, engine and generator coaxle are arranged and the quantity of reduction axis, so that entire driving Device radial dimension reduces, and cost is also reduced.Also, third clutch and clutch collar are used in driving motor power output path Combination is to switch gear, by preferably controlling, can disengage, complete same in the moment in the engagement of third clutch, clutch collar When switch, so can solve switching gear when power interruption problem.
According to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings, those skilled in the art will be brighter The above and other objects, advantages and features of the present invention.
Detailed description of the invention
Some specific embodiments of the present invention is described in detail by way of example and not limitation with reference to the accompanying drawings hereinafter. Identical appended drawing reference denotes same or similar part or part in attached drawing.It should be appreciated by those skilled in the art that these What attached drawing was not necessarily drawn to scale.In attached drawing:
Fig. 1 is the schematic diagram of the driving device according to an embodiment of the invention for hybrid vehicle；
Fig. 2 is the schematic flow chart of hybrid power driving method according to an embodiment of the invention；
Specific embodiment
Fig. 1 is the schematic diagram of the driving device according to an embodiment of the invention for hybrid vehicle. As shown in Figure 1, the driving device includes engine 1, generator 6 and driving motor 11.The engine 1 is provided by non-combusted fuels Power, driving motor 11 provide power by electric energy.The generator 6 and driving motor 11 are connected with battery, both can be to Battery charging.Wherein the generator 6 may also participate in driving, provide torque compensation for pure electric drive.
The driving device further include various axis, the gear being set on various axis, first clutch 2, second clutch 5, Third clutch 12 and clutch collar 104.
Axis may include be parallel to each other and primary input axis 3 arranged spaced apart, the first output shaft 7, the second output shaft 9 and drive Dynamic motor shaft 10.Wherein, primary input axis 3 is used to receive and transmit the torque of engine 1.Drive motor shaft 10 is for receiving and passing Pass the torque of driving motor 11.
The gear being set on various axis may include input shaft gear 4, first gear 71, second gear 92, third tooth Take turns the 103, the 4th gear 105, the 5th gear 72, the 6th gear 91, the 7th gear 101 and eighth gear 102.
Input shaft gear 4 is arranged on primary input axis 3.First gear 71 is arranged on the first output shaft 7, second gear 92 It is arranged on the second output shaft 9, third gear 103 and the 4th gear 105 are arranged in drive motor shaft 10.First gear 71 with Second gear 92 is meshed, and third gear 103 is meshed with second gear 92.In one embodiment, on the first output shaft 7 also It is provided with the 5th gear 72, the 5th gear 72 and first gear 71 are coaxial.The 6th gear is additionally provided on second output shaft 9 91, the 7th gear 101 is additionally provided in drive motor shaft 10, and the 7th gear 101 is engaged with the 6th gear 91.Drive motor shaft 10 On be additionally provided with eighth gear 102, eighth gear 102 is connected by second gear 92 with first gear 71.
First clutch 2 and second clutch 5 are separately positioned on the two sides of input shaft gear 4, for make engine 1 with Generator 6 is coaxially connected by first clutch 2 and second clutch 5.Third clutch 12 is arranged in drive motor shaft 10. Clutch collar 104 is arranged in drive motor shaft 10, and initial position is arranged on the 4th gear, described for simultaneously engaging with Third gear and the 4th gear.
According to the solution of the present invention, the power source of engine 1, generator 6 and driving motor 11 is incorporated, it can basis Power demand carries out intelligent optimal combination.By increasing first clutch 2 and the second clutch between generator 6 and engine 1 Device 5 disconnects the second clutch 5 that is connected with generator 6, can make sufficient in electricity and on a highway when driving, and reduction is sent out The energy loss that motivation 1 is directly driven.First clutch 2 and second clutch 5 are disconnected, while 11 outgoing route of driving motor also breaks It opens, neutral gear parking may be implemented, can solve when vehicle trouble that may be present needs trailer in this way because of the excessively high damage electricity of potential The problem of machine and inverter.
In addition, by being staggeredly arranged, engine 1 and generator 6 it is coaxially arranged and reduce the quantity of axis so that entire drive Dynamic device radial dimension reduces, and cost is also reduced.Also, 12 He of third clutch is used in 11 power output path of driving motor Clutch collar 104 combines to switch gear, can be in the moment in the engagement of third clutch 12, clutch collar by preferably controlling 104 disengage, and complete while switching, and so can solve power interruption problem when switching gear.
Fig. 2 shows the schematic flow charts of hybrid power driving method according to an embodiment of the invention.Such as Fig. 2 institute Show, which includes:
Step S100 obtains the power demand of hybrid vehicle；
Step S200 determines target operation mould from multiple operating modes of hybrid vehicle according to power demand Formula；
Step S300 carries out 11 3 engine 1, generator 6 and driving motor power sources under target operational mode Combination, to select best power source stream output route to carry out output power, to drive vehicle.
Wherein, which has multiple operating modes, may include neutral gear park mode, pure electric drive mould Formula, hybrid power drive mode, engine 1 directly drive mode, driving charging series model and Brake energy recovery mode.The following table 1 Show the working condition of driving device under multiple operating modes.
Table 1
When the vehicle applied by driving device is in neutral gear park mode, engine 1, generator 6 and driving motor 11 It stops working, first clutch 2, second clutch 5 and third clutch 12 disconnect, and clutch collar 104 is made to engage third Gear 103 or the 4th gear 105.Under the neutral gear park mode, the connection between three power sources and the first output shaft 7 is disconnected Open, so as to realize the function of vehicle neutral gear parking, when can also prevent vehicle trouble trailer because of the excessively high damage motor of potential and Inverter.
When the vehicle applied by driving device is in pure electric drive mode, the pure electric drive mode again there are two types of mode, Respectively the first operational mode and the second operational mode.
Under the first operational mode, first clutch 2 and second clutch 5 are disconnected, and select a gear pattern as needed Or two gear patterns, to be selectively engaged third clutch 12 or selectively clutch collar 104 be made to simultaneously engage with third gear 103 and the 4th gear 105, make driving motor 11 that hybrid vehicle be operated alone.When being selected as a gear pattern, third is engaged Clutch 12, and clutch collar 104 is made only to engage the 4th gear 105, the power that driving motor 11 exports is through drive motor shaft 10, the It is defeated that three clutches 12, the 7th gear 101, the 6th gear 91, the second output shaft 9 and second gear 92 are transferred to first after slowing down Shaft 7.The torque of power output is big under the mode and revolving speed is small.The gear be mainly used to meet automobile in starting, go up a slope and Power demand under the operating conditions such as anxious acceleration.When being selected as second gear mode, third clutch 12 is disconnected, and keeps clutch collar 104 same When engaging third gear 103 and the 4th gear 105, the power that driving motor 11 exports is through drive motor shaft 10, the 4th gear 105, clutch collar 104, third gear 103, eighth gear 102 and second gear 92 are transferred to the first output shaft 7 after slowing down.It should The dynamic torque exported under mode is small and revolving speed is big.The gear be mainly used to meet general traveling of the automobile on flat road or Power demand under the operating conditions such as run at high speed.In this mode, the demand power of battery capacity abundance and vehicle is lower than driving The power that motor 11 can be provided.
Under second operational mode, first clutch 2 is disconnected, engages second clutch 5, and select a gear pattern as needed Or two gear patterns, to be selectively engaged third clutch 12 or selectively clutch collar 104 be made to simultaneously engage with third gear 103 and the 4th gear 105, generator 6 and driving motor 11 driving hybrid vehicle jointly.Generator 6 exports under the mode Power, the mainly torque compensation to driving motor 11 under the operating conditions such as starting, anxious acceleration and climbing.Under this kind of mode, Have a gear pattern and two gear patterns, this under the first above-mentioned operational mode a gear pattern and two gear patterns it is identical, herein not It repeats again.
When the vehicle applied by driving device is in hybrid power drive mode, which is divided into again Third operational mode and the 4th operational mode.
Under third operational mode, first clutch 2 is engaged, disconnects second clutch 5, engage third clutch 12 or is made Clutch collar 104 simultaneously engages with third gear 103 and the 4th gear 105, mixes engine 1 with the common driving of driving motor 11 dynamic Power vehicle.By only engagement third clutch 12 under the third operational mode, or clutch collar 104 is only made to simultaneously engage with third Gear 103 and the 4th gear 105 are, it can be achieved that different drive ratios power output.
Under 4th operational mode, first clutch 2 is engaged, engages second clutch 5, and select a gear pattern as needed Or two gear patterns, to be selectively engaged third clutch 12 or selectively clutch collar 104 be made to simultaneously engage with third gear 103 and the 4th gear 105, if engine 1 also drives generator 6 to generate electricity while driving hybrid vehicle, at this time the 4th Operational mode also may be referred to driving charging paralleling model.If generator 6 is used as driving motor output power, with engine 1 and drive Dynamic motor 11 drives wheel together.The 4th operational mode is the parallel drive mode of three power sources at this time.When being selected as a gear When mode, third clutch 12 is engaged, and clutch collar 104 is made only to engage the 4th gear 105, the power warp that driving motor 11 exports Drive motor shaft 10, third clutch 12, the 7th gear 101, the 6th gear 91, the second output shaft 9 and second gear 92 subtract The first output shaft 7 is transferred to after speed.The torque of power output is big under the mode and revolving speed is small.The gear is mainly used to meet automobile Power demand under the operating conditions such as starting, upward slope and anxious acceleration.When being selected as second gear mode, third clutch 12 is disconnected, And clutch collar 104 is made to simultaneously engage with third gear 103 and the 4th gear 105, the power that driving motor 11 exports is through driving motor Axis 10, the 4th gear 105, clutch collar 104, third gear 103, eighth gear 102 and second gear 92 are transferred to after slowing down First output shaft 7.The dynamic torque exported under the mode is small and revolving speed is big.The gear is mainly used to meet automobile on flat road The power demand for generally travelling or running at high speed etc. under operating conditions.In this mode, the need of battery capacity abundance and vehicle Power is asked to be lower than the power that driving motor 11 can be provided.
The vehicle applied by driving device be in engine 1 directly drive mode when, engage first clutch 2, disconnect or connect Second clutch 5 is closed, third clutch 12 is disconnected and clutch collar 104 is made only to engage the 4th gear 105.When battery capacity abundance When, second clutch 5 disconnects, and engine 1 no longer needs to drive 6 rotor of generator to dally, it can be achieved that reducing energy loss, will move Power maximum delivered is to the first output shaft 7.When battery capacity deficiency, second clutch 5 is combined, and engine 1 drives generator 6 to send out Electricity, the mode are known as charging series model of driving a vehicle.
When the vehicle applied by driving device is in Brake energy recovery mode, first clutch 2, engagement second are disconnected Clutch 5 engages third clutch 12 or clutch collar 104 is made to simultaneously engage with third gear 103 and the 4th gear 105.This kind In the case of, generator 6 and driving motor 11 are involved in Brake energy recovery and power generation.When the engagement of only second clutch 5 or When only the engagement of third clutch 12 or clutch collar 104 simultaneously engage with third gear 103 and four gears 105, only generate electricity Machine 6 or driving motor 11 participate in Brake energy recovery.
Above-mentioned mixed power plant is according to power demand, by controlling engine 1, generator 6, driving motor 11 3 Power source carries out intelligent combination, selects best power source stream output route output power, drives vehicle.While engine 1 is not only It individually can directly drive, moreover it is possible to generate electricity in battery capacity deficiency to generator 6.Generator 6 can not only charge to battery, also Torque compensation can be given in pure electric drive.By the combined control of third clutch 12 and clutch collar 104, it can be achieved that two kinds Gear selection, the requirement that can be exported in this way to 11 torque of driving motor suitably reduce, and make hybrid vehicle in parallel The working condition range of work expands, while the working efficiency of driving motor 11 can also increase.Therefore, the present invention by pair Driving device optimization design solves hybrid vehicle vehicle trouble that may be present and needs trailer in conjunction with preferable control When suddenly accelerate and the problem of when climbing is short of power because of the excessively high damage motor of potential and inverter, pure electric drive.The optimization design The interchangeability for improving mixed power plant reduces the cost of whole device, improves its fuel economy, reduces row It puts.
Also, clutch (first clutch 2 and second clutch 5) and a shift combination (third clutch there are two setting Device 12 and clutch collar 104), it can be achieved that engine 1, generator 6 and driving motor 11 decoupling, can make sufficient in electricity and in height On fast highway when driving, the energy loss that internal combustion engine directly drives is reduced.It can also be achieved neutral gear parking.The gearshift is a clutch The combination of device and clutch collar 104, and on same axis, it can be achieved while switching by preferably controlling, can solve and shifted gears The power interruption problem of journey, and cost is lower than the combination of double clutch shiftings.The shift combination does not have to be integrated in rotor In space, structure is simpler and interchangeability is more preferable.
So far, although those skilled in the art will appreciate that present invention has been shown and described in detail herein multiple shows Example property embodiment still without departing from the spirit and scope of the present invention, still can according to the present disclosure directly Determine or deduce out many other variations or modifications consistent with the principles of the invention.Therefore, the scope of the present invention is understood that and recognizes It is set to and covers all such other variations or modifications.

Claims (10)

1. a kind of driving device for hybrid vehicle, which is characterized in that including engine, generator and driving motor, The driving device further include:
Primary input axis is provided with input shaft gear on the primary input axis for receiving the torque of the engine；
First clutch and second clutch, are separately positioned on the two sides of the input shaft gear, the engine with it is described Generator is coaxially connected by the first clutch and the second clutch；
First output shaft, is arranged to parallel with the primary input axis and arranged apart with the primary input between centers, and described first is defeated First gear is provided on shaft；
Second output shaft, be arranged to it is parallel with the primary input axis and arranged spaced apart with first output shaft, described second Second gear is provided on output shaft, the second gear is engaged with the first gear；
Drive motor shaft, for receiving and transmitting the torque of the driving motor, and be arranged to it is parallel with the primary input axis and It is arranged spaced apart with second output shaft, third gear and the 4th gear, the third are provided in the drive motor shaft Gear is engaged with the second gear；
Third clutch is arranged in the drive motor shaft；
Clutch collar is arranged in the drive motor shaft, and initial position is arranged on the 4th gear, for simultaneously engaging with The third gear and the 4th gear.
2. driving device according to claim 1, which is characterized in that be additionally provided with the 5th tooth on first output shaft Wheel, the 5th gear and the first gear are coaxial；
The driving device further includes differential mechanism, and the input shaft gear passes through the first gear and the 5th gear and institute Differential mechanism is stated to be connected.
3. driving device according to claim 1, which is characterized in that be additionally provided with the 6th tooth on second output shaft Wheel；
The 7th gear is additionally provided in the drive motor shaft, the 7th gear is engaged with the 6th gear；
Optionally, eighth gear is additionally provided in the drive motor shaft, the eighth gear passes through the second gear and institute First gear is stated to be connected.
4. a kind of hybrid power driving method is applied to driving device described in any one of claim 1-3, which is characterized in that Include:
Obtain the power demand of hybrid vehicle；
Target operational mode is determined from multiple operating modes of the hybrid vehicle according to the power demand；
Three engine, generator and driving motor power sources are combined under the target operational mode, with most preferably dynamic Force flow output route output power, to drive vehicle.
5. hybrid power driving method according to claim 4, which is characterized in that the operating mode includes: that pure electricity drives Dynamic model formula, the pure electric drive mode include: corresponding to the battery capacity abundance of the hybrid vehicle and the demand of vehicle First operational mode of the case where power is lower than the power that the driving motor can be provided, wherein
Under first operational mode, first clutch and second clutch are disconnected, and select a gear pattern or two gear patterns, It is selectively engaged third clutch or clutch collar is selectively made to simultaneously engage with third gear and the 4th gear, make the drive The hybrid vehicle is operated alone in dynamic motor；
Optionally, the pure electric drive mode further includes the battery capacity abundance and vehicle corresponding to the hybrid vehicle Second operational mode of the case where demand power is lower than the power that the driving motor can be provided, wherein
In the second mode of operation, first clutch is disconnected, engages second clutch, and select a gear pattern or second gear mould Formula is selectively engaged third clutch or clutch collar is selectively made to simultaneously engage with third gear and the 4th gear, makes institute It states generator and the driving motor drives the hybrid vehicle jointly.
6. hybrid power driving method according to claim 5, which is characterized in that the operating mode includes: that mixing is dynamic Power drive mode, the hybrid power drive mode include: third operational mode, wherein
Under the third operational mode, engage the first clutch, disconnect the second clutch, engage the third from Clutch makes the clutch collar simultaneously engage with the third gear and the 4th gear, makes the engine and the driving Motor drives the hybrid vehicle jointly；
Optionally, the hybrid power drive mode further include: the 4th operational mode, wherein
Under the 4th operational mode, the first clutch is engaged, engages the second clutch, and selects a gear Mode or two gear pattern are selectively engaged the third clutch or selectively simultaneously engage with the clutch collar The third gear and the 4th gear, make also to drive the hair while hybrid vehicle described in the engine driving Electric power generation or the generator drive together with the engine and the driving motor as driving motor output power Wheel.
7. hybrid power driving method according to claim 5 or 6, which is characterized in that under a gear pattern, engagement The third clutch, and the clutch collar is made only to engage the 4th gear, described in the power warp that the driving motor exports Drive motor shaft, the third clutch, the 7th gear, the 6th gear, the second output shaft and second gear are transmitted after slowing down To the first output shaft；
Optionally, under two gear pattern, the third clutch is disconnected, and the clutch collar is made to simultaneously engage with the third Gear and the 4th gear, the power of driving motor output is through the drive motor shaft, the 4th gear, clutch collar, the Three gears, eighth gear and second gear are transferred to first output shaft after slowing down.
8. hybrid power driving method according to claim 4, which is characterized in that the operating mode includes: that neutral gear is stayed Vehicle mode, wherein under the neutral gear park mode, three engine, the generator and the driving motor power Source stops working, and the first clutch, the second clutch and the third clutch disconnect, and make the engagement Set engages the third gear or the 4th gear, keeps the connection between three power sources and first output shaft disconnected It opens.
9. hybrid power driving method according to claim 4, which is characterized in that the operating mode includes: engine It is straight to drive mode, wherein under the engine direct drive mode, engage the first clutch, disconnect or engage described second from Clutch disconnects the third clutch and the clutch collar is made only to engage the 4th gear.
10. hybrid power driving method according to claim 4, which is characterized in that the operating mode includes: Brake Energy Measure take-back model, wherein under the Brake energy recovery mode, disconnect the first clutch, engage second clutch Device or the third clutch, or the clutch collar is made to simultaneously engage with the third gear and the 4th gear, Huo Zhetong When combine second clutch and third clutch, or the clutch collar is made to simultaneously engage with the third gear and the 4th tooth Wheel.
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