CN106740810A - Hybrid power system based on double clutch transmission structures - Google Patents
Hybrid power system based on double clutch transmission structures Download PDFInfo
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- CN106740810A CN106740810A CN201710053581.9A CN201710053581A CN106740810A CN 106740810 A CN106740810 A CN 106740810A CN 201710053581 A CN201710053581 A CN 201710053581A CN 106740810 A CN106740810 A CN 106740810A
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- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/06—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of combustion engines
-
- 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
- B60W10/04—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units
- B60W10/08—Conjoint control of vehicle sub-units of different type or different function including control of propulsion units including control of electric propulsion units, e.g. motors or generators
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/10—Controlling the power contribution of each of the prime movers to meet required power demand
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/20—Control strategies involving selection of hybrid configuration, e.g. selection between series or parallel configuration
-
- 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
- B60W20/00—Control systems specially adapted for hybrid vehicles
- B60W20/40—Controlling the engagement or disengagement of prime movers, e.g. for transition between prime movers
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- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/06—Combustion engines, Gas turbines
- B60W2510/0638—Engine speed
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/08—Electric propulsion units
- B60W2510/081—Speed
-
- 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
- B60W2520/00—Input parameters relating to overall vehicle dynamics
- B60W2520/10—Longitudinal speed
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- 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
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- 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
- B60W2710/06—Combustion engines, Gas turbines
- B60W2710/0644—Engine speed
-
- 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
- B60W2710/08—Electric propulsion units
- B60W2710/081—Speed
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- 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)
- Hybrid Electric Vehicles (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The hybrid power system based on double clutch transmission structures that the present invention is provided, including double clutch transmission structures, controller, the first motor, engine and multiple second motors；Second motor driving shaft is connected with the power transmission shaft of wheel of vehicle drive system, is directly used in driving wheel of vehicle motion；Double clutch transmission structures are connected with wheel of vehicle drive system, the first motor and engine；Engine is used to drive the first electric power generation.The system has multiple-working mode, such as pure electric mode and serial mixed power pattern, and can conveniently realize the switching between various modes, has both met the pure motor driving demand of short distance commuting, also meets long range hybrid power demand.
Description
Technical field
The invention belongs to vehicle power field, and in particular to the hybrid power system based on double clutch transmission structures.
Background technology
In terms of the dynamical system that new-energy automobile is used, mainly have pure electronic, tandem it is mixed it is dynamic, parallel it is mixed it is dynamic,
Series parallel type is mixed to move this 4 kinds of schemes.During pure electric automobile only with electrokinetic cell as stored energy power device automobile.Electrokinetic cell
By power conversion unit for motor provides electric energy so that motor work operating, motor is through transmission system band
Motor car wheel rotates, so as to promote automobile to advance or retreat.Relative to traditional combustion engine, motor has speed governing model wider
Enclose, and the low speed permanent torque of motor can preferably meet the starting of automobile, accelerate and high with high speed constant output characteristic
Speed demand.The driving system structure of pure electric automobile is simple, energy efficiency is high, but needs to be equipped with high capacity cell, and faces
Continue a journey limited, electrically-charging equipment imperfection and charging interval problem long.
Serial type hybrid automobile is by traditional combustion engine drive system and the repeatable electrical energy storage system for charging
The automobile that drive system is organically combined.The engine of serial type hybrid automobile is not involved in directly driving vehicle, can
Optimum condition is always worked at, so that more preferable fuel-economy type is obtained, therefore to a certain extent can be with alleviating energy crisis
With reduction environmental pollution.But its motor is bound with engine, it is impossible to be directly used in driving vehicle so that vehicle power is weaker.
The transmission system aspect that automobile dynamic system is used mainly uses gearbox.Gearbox is by complicated machinery knot
Structure completes the switching of different gear ratios, to match engine speed and speed.Also, usual engine is directly to participate in vehicle
Drive.In the connection and disconnection of power, existing dynamical system is by controlling clutch or fluid torque-converter to complete power
Connection or disconnection.When using clutch, the semi-linkage state that system passes through friction clutch disc eliminates the rotating speed of transmission system
It is inconsistent；When using fluid torque-converter, system then reaches identical purpose by the flexible connection of fluid torque-converter.
The content of the invention
For defect of the prior art, the present invention provides the hybrid power system based on double clutch transmission structures, while
Possess pure electric mode and serial mixed power pattern, and can conveniently realize the switching between both of which, it is both full
The pure motor driving demand of sufficient short distance commuting, also meets long range hybrid power demand.
Based on the hybrid power system of double clutch transmission structures, including double clutch transmission structures, controller, the first motor,
Engine and multiple second motors；Second motor driving shaft is connected with the power transmission shaft of wheel of vehicle drive system, is directly used in drive
Motor-car；Double clutch transmission structures are connected with wheel of vehicle drive system, the first motor and engine；Engine is used to drive the
One electric power generation.
Preferably, there are two transmission break-make roads in described pair of clutch transmission structure：The first motor driving shaft is arranged on hair
Transmission break-make road between motivation output shaft, and it is arranged on the transmission in the first motor driving shaft and wheel of vehicle drive system
Transmission break-make road between axle；Only have a transmission break-make road to connect in synchronization, or two transmission break-make roads are broken
Open.
Preferably, the system includes 3 kinds of main mode of operations：Neutral park mode, pure electric bi-motor pattern and tandem are mixed
Dynamic model formula；Also include 3 kinds from mode of operation：Power generation in parking pattern, pure electricity list motor mode and temporary transient bi-motor pattern；Wherein,
Mutually switch between the main mode of operation of any two, mutually switch between neutral park mode and power generation in parking pattern, pure electricity is double
Mutually switch between motor mode and pure electricity list motor mode, tandem is mixed mutually to cut between dynamic model formula and temporary transient bi-motor pattern
Change, during failure, mutually switch between neutral park mode and pure electricity list motor mode.
Preferably, the transmission break-make road is provided with clutch, by the break-make on the clutch control transmission break-make road.
Preferably, the controller is additionally operable to the engagement of control clutch or separates, and obtains power transmission shaft or engine output
The rotary speed information of axle；When controller controls the clutch that break-make road is driven between the first motor and power transmission shaft to engage, when detecting
When the rotating speed of the first motor driving shaft is matched with the rotating speed of power transmission shaft, clutch engagement；Controller controls the first motor with hair
When the clutch that break-make road is driven between motivation is engaged, when the rotating speed and engine output shaft that detect the first motor driving shaft
When rotating speed is matched, clutch engagement.
Preferably, the controller is additionally operable to adjust the rotating speed of the first motor driving shaft so that the first motor driving shaft
Rotating speed is matched with the rotating speed of the power transmission shaft for obtaining, or causes the rotating speed and the engine output shaft for obtaining of the first motor driving shaft
Rotating speed matching.
Preferably, when the rotating speed of the first motor driving shaft and the difference of the rotating speed of engine output shaft are less than the threshold value for setting
When, judge that the rotating speed of the first motor driving shaft is matched with the rotating speed of engine output shaft；When the first motor driving shaft rotating speed with
When the difference of the rotating speed of power transmission shaft is less than the threshold value, judge that the rotating speed of the first motor driving shaft is matched with the rotating speed of power transmission shaft.
Preferably, the rotary speed information is obtained by vehicle speed sensor or engine speed sensor, can also be by connecing
Receive rotary speed information or the determination of default tachometer value that other equipment sends.
As shown from the above technical solution, the present invention provides the hybrid power system based on double clutch transmission structures, with many
Kind of mode of operation, such as pure electric mode and serial mixed power pattern, and can conveniently realize between various modes
Switching, both met short distance commuting pure motor driving demand, also meet long range hybrid power demand.
Brief description of the drawings
In order to illustrate more clearly of the specific embodiment of the invention or technical scheme of the prior art, below will be to specific
The accompanying drawing to be used needed for implementation method or description of the prior art is briefly described.In all of the figs, similar element
Or the general reference by being similar in part is identified.In accompanying drawing, each element or part might not draw according to actual ratio.
Fig. 1 is the system construction drawing of hybrid power system.
Fig. 2 is the mode of operation-transition graph of hybrid power system.
Fig. 3 is system construction drawing of the hybrid power system under neutral park mode.
Fig. 4 is system construction drawing of the hybrid power system under pure electric bi-motor pattern.
Fig. 5 is the system construction drawing under the mixed dynamic model formula of tandem of hybrid power system.
Fig. 6 is a kind of pair of clutch transmission structure in hybrid power system.
Fig. 7 is another double clutch transmission structures in hybrid power system.
Specific embodiment
The embodiment of technical solution of the present invention is described in detail below in conjunction with accompanying drawing.Following examples are only used for
Technical scheme is clearly illustrated, therefore is only used as example, and protection model of the invention can not be limited with this
Enclose.It should be noted that unless otherwise indicated, technical term used in this application or scientific terminology are should be belonging to the present invention
The ordinary meaning that art personnel are understood.
Based on the hybrid power system of double clutch transmission structures, as shown in Figure 1, 2, including double clutch transmission structures, control
Device, the first motor, engine and multiple second motors；Second motor driving shaft connects with the power transmission shaft of wheel of vehicle drive system
Connect, be directly used in driving vehicle；Double clutch transmission structures are connected in wheel of vehicle system, the first motor and engine；Engine
For driving the first electric power generation.
Heavy line represents mechanical connection in Fig. 1, and fine line represents electrical connection, and dotted line represents that signal is connected, and 1 passes for speed
Sensor.During specific implementation, also including battery, the electricity for storing the first electric power generation, and to the first motor and the second motor
Power supply.Mechanical connection can realize using existing attachment structure, such as direct connection (plus connection sleeve pipe connected), by shaft coupling company
Connect, connected by driving belt, being connected by gear, being connected by clutch etc..
The wheel of vehicle drive system includes 2 drives subsystems：Front-wheel drive subsystem and rear wheel drive subsystem；
Second motor driving shaft is connected with the power transmission shaft of any drives subsystem in wheel of vehicle drive system, another drives subsystem
Power transmission shaft is connected to the first motor by double clutch transmission structures.
Usual first motor and the second motor should not be connected in same drives subsystem, if the second motor connection exists
On rear wheel drive subsystem, then the first motor should be connected on front-wheel drive subsystem, if instead the second motor connection is preceding
In wheel driving subsystem, then the first motor should be connected on rear wheel drive subsystem.Under special circumstances, before being limited to such as chassis
Put forerunner or in postpone drive, the second motor and the first motor can be simultaneously connected to front-wheel drive subsystem or rear wheel drive
In system.
During specific implementation, the device of the change rotating speed without gear can also be added, such as change-speed gearing (case), to match the
Required rotating ratio, engine are connected rotating ratio, the driving of the second motor when being generated electricity with the first motor when one motor drives
The rotating ratio of Shi Suoxu, to enable that the first motor and the second motor have optimal moment of torsion and power output when vehicle is driven,
So that there is optimal fuel efficiency and generating efficiency during the first electric power generation of driven by engine.
Simultaneously as there is no gearbox in hybrid power system of the present invention, and this hybrid power system design
Purpose is to obtain optimal fuel efficiency, so when realizing, should not by force simultaneously engage with two clutches to cause engine direct
Connect intervention vehicle traction.Further, since there is the device of foregoing change rotating speed in hybrid power system, two are simultaneously engaged with by force
The engine that clutch is brought-rotating speed of transmission shaft ratio may cause that engine cannot normal work.
During specific implementation, engine is a kind of equipment that other energy (nonelectrical energy) are converted into mechanical energy, such as uses vapour
Oil, the internal combustion engine of diesel oil or natural gas, external-combustion engine, the equipment etc. that converts compressed air into mechanical energy.Sent out using Miller cycle
Motivation, the engine using more high compression ratio, start using diesel engine, using the fuel efficiency such as HCCI technology engines are high
Machine, can improve the fuel efficiency of this hybrid power system.
The working condition of this hybrid power system is as shown in Fig. 2 have 3 main mode of operations：Neutral park mode, Fig. 2
Middle abbreviation stays (Fig. 3), pure electric bi-motor pattern (Fig. 4) and mixed dynamic model formula (Fig. 5) of tandem, can be mutual between main mode of operation
Switching；Also there are 3 from mode of operation：Power generation in parking pattern, pure electricity list motor mode and power generation in parking pattern, secondary pattern is only
As shown in Figure 2 can mutually switch between a certain Main Patterns.
When vehicle breaks down, the clutch in such as double clutch transmission structures cannot be engaged, the first motor damage, can be straight
Connect using the second motor to drive the dotted line in vehicle, that is, Fig. 2：Phase between pure electricity list motor mode and neutral gear park mode
Mutually switching.
The concrete condition of every kind of mode of operation is as shown in the table：
When vehicle is in pure electric bi-motor pattern or temporary transient bi-motor pattern, controller should be according to driving condition, will be dynamic
Power demand it is appropriate distribute to two motors.
The system possesses 2 motors that can be used to drive vehicle, such as can respectively use alternating current asynchronous electricity by different modes
First motor different speed reducing ratio corresponding from the second motor when machine and permagnetic synchronous motor, driving so that the first motor and second
Motor lays particular emphasis on different driving conditions respectively, and such as the first motor is adapted to below 70km/h speeds, and the second motor is adapted to 70km/
More than h speeds, the first motor are adapted to torque output to be used to accelerate, and the second motor is adapted to power output and is adapted to hold speed, most
Whole system is reached eventually obtains preferable power performance in full vehicle speed intervals.
In this hybrid power system, arrangement of clutch can be set between the second motor and wheel, to break under steam
The second motor is driven, but this is not required.
For safety, antitheft or other reasons considerations, locking system, lock-up clutch, can be in the present system added
One motor, engine or the second motor, but this is not required.
As shown in Figure 6,7, there are two transmission break-make roads in double clutch transmission structures described in this hybrid power system：Set
Transmission break-make road between the first motor driving shaft and engine output shaft, and it is arranged on the first motor driving shaft and vehicle
Transmission break-make road between power transmission shaft in wheel drive system；Only have a transmission break-make road to connect in synchronization, or
It is that two transmission break-make roads disconnect.
Due to that can only there is a transmission break-make road to connect in synchronization, so double clutch transmission structures only need to bear 1
Moment of torsion of the part from the first motor or engine.
The transmission break-make road is provided with clutch, by the break-make on the clutch control transmission break-make road.Use clutch
Device complete break-make benefit be：Transmission is directly, low cost of manufacture, control and control logic be simple, saving weight and space.Especially
, it is noted that due to only having a transmission break-make road to connect in synchronization, it is impossible to simultaneously engage with two transmission break-make roads
Clutch.
Double clutch transmission structures can realize that transmission case includes each extending over out transmission using transmission case as shown in Figure 6
The left axle of case, right axle and main shaft, are connected wherein between left axle and main shaft by clutch, and clutch is passed through between right axle and main shaft
Connection, double vertical lines represent clutch in figure, and the left axle of transmission case is connected with power transmission shaft, form the first motor driving shaft and vehicle car
Transmission break-make road between power transmission shaft in wheel drive system, the right axle of transmission case is connected with the output shaft of engine, forms the
Transmission break-make road between one motor driving shaft and engine output shaft, the main shaft of transmission case is connected with the output shaft of motor, when
During the clutch that engagement is connected with left axle, the output of the first motor passes to power transmission shaft, driving moment operating.When engagement and right axle
During the clutch of connection, the output of engine passes to the first motor, is generated electricity.
Double clutch transmission structures can also realize that the drive shaft of the first motor has left and right two using structure as shown in Figure 7
End, wherein one end is connected by clutch with power transmission shaft, forms the biography in the first motor driving shaft and wheel of vehicle drive system
Transmission break-make road between moving axis, the other end is connected by clutch with the output shaft of engine, forms the first motor driving shaft
Transmission break-make road between engine output shaft.When the clutch that engagement is connected with power transmission shaft, the first motor will be exported and passed
Pass power transmission shaft, driving moment operating.When the clutch that engagement is connected with engine, the output of engine passes to the first electricity
Machine, is generated electricity.
During specific implementation, need to ensure two clutches of double clutch transmission structures can not simultaneously engage with.As in the controller
Setting avoids the control routine that clutch simultaneously engages with, set one " prevents another clutch when a clutch has been engaged
Device engage " mechanical structure, double clutch transmission structures machinery realize on cannot just simultaneously engage with two clutches etc..
For clutch, there are " engagement " and " separation " two actions.The separation of clutch, need to only be directly separated；From
The engagement of clutch is directly engaged by condition of geo-stationary, it is necessary to ensure that the two ends rotating speed of clutch is equal.
When the clutch of the double clutch transmission structures of controller control is engaged, power transmission shaft or engine output shaft are obtained first
Rotary speed information.When controller controls the clutch that break-make road is driven between the first motor and power transmission shaft to engage, when detecting first
When the rotating speed of motor driving shaft is matched with the rotating speed of power transmission shaft, clutch engagement；Controller controls the first motor and engine
Between when being driven the clutch on break-make road and engaging, when the rotating speed and the rotating speed of engine output shaft that detect the first motor driving shaft
During matching, clutch engagement.
When the rotating speed of the first motor driving shaft is less than the threshold value of setting with the difference of the rotating speed of engine output shaft, judge
The rotating speed of the first motor driving shaft is matched with the rotating speed of engine output shaft；When the rotating speed and power transmission shaft of the first motor driving shaft
When the difference of rotating speed is less than the threshold value, judge that the rotating speed of the first motor driving shaft is matched with the rotating speed of power transmission shaft.
The controller be additionally operable to adjust the first motor driving shaft rotating speed so that the rotating speed of the first motor driving shaft with obtain
The rotating speed matching of the power transmission shaft for taking, or cause the rotating speed of the first motor driving shaft and the rotating speed of the engine output shaft for obtaining
Match somebody with somebody.
The rotary speed information is obtained by vehicle speed sensor or engine speed sensor, can also be set by receiving other
The rotary speed information or default tachometer value that preparation is sent determine.
When controller control clutch is engaged, rotating speed can be reached by adjusting the rotating speed of the first motor and matched.First
The rotary speed information of aforementioned drive axle or engine output shaft is obtained, turning for the first motor for causing clutch-plate constant speed is then calculated
Speed, and control the first motor to reach this rotating speed.
In the above-mentioned control method of application, engine speed also can be simultaneously adjusted.
Controller controls the first motor to reach the rotating speed for causing clutch-plate constant speed, can be the process of moment, also may be used
Being a process for continuation.That is, controller can complete rotating speed control when the first motor reaches rotating speed of target for the first time
Task processed, or controller continuously follows the trail of the rotating speed of power transmission shaft or engine output shaft within a period of time, and constantly adjusts first
Motor is allowed to be consistent with newest rotating speed of target.
Wherein so that the computational methods of the rotating speed of the first motor of clutch-plate constant speed are：After the completion of Design of Transmission System,
Rotating ratio of the equipment at clutch two ends when clutch is engaged be it is fixed, rotating speed needed for the first motor can by power transmission shaft or
The rotating speed of engine output shaft is multiplied by (or divided by) correspondence rotating ratio and obtains.
By taking Fig. 7 as an example, left side clutch connects the first motor and power transmission shaft respectively.If the rotating speed of power transmission shaft and the first motor
Than being 1：10., it is necessary to when the clutch is coupled so that into the intervention of the first motor drives, control so in vehicle travel process
Method is as follows：First, the rotating speed of power transmission shaft (or wheel), then such as 1000 revs/min, control machine calculating are obtained by vehicle speed sensor
Go out now so that the first motor speed of clutch-plate constant speed should be 10000 revs/min；Then, controller controls the first motor to reach
The rotating speed；Finally, now the first motor is matched with rotating speed of transmission shaft, engages the clutch.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
Pipe has been described in detail with reference to foregoing embodiments to the present invention, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme, it all should cover in the middle of the scope of claim of the invention and specification.
Claims (8)
1. the hybrid power system based on double clutch transmission structures, it is characterised in that including double clutch transmission structures, controller,
First motor, engine and multiple second motors；Second motor driving shaft is connected with the power transmission shaft of wheel of vehicle drive system, directly
Connect for driving vehicle；Double clutch transmission structures are connected with wheel of vehicle drive system, the first motor and engine；Engine is used
In driving the first electric power generation.
2. the hybrid power system based on double clutch transmission structures according to claim 1, it is characterised in that it is described it is double from
Close drive mechanism and there are two transmission break-make roads：It is arranged on the transmission break-make between the first motor driving shaft and engine output shaft
Road, and it is arranged on the transmission break-make road between the power transmission shaft in the first motor driving shaft and wheel of vehicle drive system；Same
One moment only had a transmission break-make road to connect, or two transmission break-make roads disconnect.
3. the hybrid power system based on double clutch transmission structures according to any claim in claim 1-2, its
It is characterised by, the system includes 3 kinds of main mode of operations：The mixed dynamic model formula of neutral park mode, pure electric bi-motor pattern and tandem；
Also include 3 kinds from mode of operation：Power generation in parking pattern, pure electricity list motor mode and temporary transient bi-motor pattern；Wherein, any two
Mutually switch between main mode of operation, mutually switch between neutral park mode and power generation in parking pattern, pure electric bi-motor pattern
Mutually switch and pure electricity list motor mode between, tandem is mixed mutually to be switched between dynamic model formula and temporary transient bi-motor pattern, failure
When, mutually switch between neutral park mode and pure electricity list motor mode.
4. the hybrid power system based on double clutch transmission structures according to claim 2, it is characterised in that the transmission
Break-make road is provided with clutch, by the break-make on the clutch control transmission break-make road.
5. the hybrid power system based on double clutch transmission structures according to claim 4, it is characterised in that the control
Device is additionally operable to the engagement of control clutch or separates, and obtains the rotary speed information of power transmission shaft or engine output shaft；Controller is controlled
When the clutch that break-make road is driven between first motor and power transmission shaft is engaged, when the rotating speed and biography that detect the first motor driving shaft
When the rotating speed of moving axis is matched, clutch engagement；Controller controls to be driven the clutch on break-make road between the first motor and engine
When device is engaged, when detecting the rotating speed of the first motor driving shaft and being matched with the rotating speed of engine output shaft, the clutch is engaged.
6. the hybrid power system based on double clutch transmission structures according to claim 5, it is characterised in that the control
Device is additionally operable to adjust the rotating speed of the first motor driving shaft so that the rotating speed of the rotating speed of the first motor driving shaft and the power transmission shaft for obtaining
Matching, or cause that the rotating speed of the first motor driving shaft is matched with the rotating speed of the engine output shaft for obtaining.
7. the hybrid power system based on double clutch transmission structures according to any claim in claim 5-6, its
It is characterised by, when the rotating speed of the first motor driving shaft is less than the threshold value of setting with the difference of the rotating speed of engine output shaft, sentences
The rotating speed of fixed first motor driving shaft is matched with the rotating speed of engine output shaft；When the rotating speed and power transmission shaft of the first motor driving shaft
Rotating speed difference be less than the threshold value when, judge the first motor driving shaft rotating speed matched with the rotating speed of power transmission shaft.
8. the hybrid power system based on double clutch transmission structures according to claim 5, it is characterised in that the rotating speed
Information is obtained by vehicle speed sensor or engine speed sensor, can also be by receiving the rotary speed information that other equipment sends
Or default tachometer value determines.
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