CN105966393A - Clutch control method, control system and hybrid electric vehicle - Google Patents
Clutch control method, control system and hybrid electric vehicle Download PDFInfo
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- CN105966393A CN105966393A CN201610456923.7A CN201610456923A CN105966393A CN 105966393 A CN105966393 A CN 105966393A CN 201610456923 A CN201610456923 A CN 201610456923A CN 105966393 A CN105966393 A CN 105966393A
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- clutch
- electromotor
- engine start
- instruction
- torsion
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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
- 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
-
- 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
- B60K6/46—Series type
-
- 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
- B60W2510/00—Input parameters relating to a particular sub-units
- B60W2510/02—Clutches
- B60W2510/0275—Clutch torque
-
- 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
- B60W2510/0614—Position of fuel or air injector
-
- 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
- B60W2710/00—Output or target parameters relating to a particular sub-units
- B60W2710/02—Clutches
- B60W2710/021—Clutch engagement state
-
- 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
Abstract
The invention discloses a clutch control method, a control system and a hybrid electric vehicle. The control method includes the steps that firstly, a clutch is switched off before an engine is started; then a start motor is used for starting the engine, so that the start motor only needs to overcome rotation inertia of the engine, the situation that in the prior art, a start motor needs to overcome rotation inertia of the engine and a driving motor while outputting large power is avoided, and vibration of the start motor is reduced; finally, the engine starting process of the hybrid electric vehicle is completed by switching on the clutch. According to the analysis, the situation that the start motor outputs high power can be avoided in the engine starting process of the hybrid electric vehicle through the control method, vibration of the start motor is reduced, and user experiment of the hybrid electric vehicle is improved.
Description
Technical field
The present invention relates to motor vehicles control field, more particularly, it relates to a kind of clutch control method,
Control system and hybrid vehicle.
Background technology
In recent years, along with popularizing of motor vehicles, environment is caused the biggest by the exhaust emissions of motor vehicles
Impact, haze becomes the weather phenomenon that many cities are common, and haze can be to the healthy shape of people
Condition produces very adverse influence.Therefore the motor vehicles developing more energy-saving and environmental protection have become as society
The common recognition of all circles.Under this trend, hybrid vehicle with relatively low waste gas discharge and with little need for
The advantage of user's change car custom becomes the selection replacing orthodox car.
The dynamical system of the hybrid vehicle of main flow is as it is shown in figure 1, include: electromotor 11；It is arranged at and sends out
Startup motor 12 in motivation 11；The clutch 13 being connected with described electromotor 11；With described clutch 13
The driving motor 14 connected；The change speed gear box 15 that is connected with described driving motor 14 and with described change speed gear box 15
The drive system 16 connected.When described hybrid vehicle is closed, at described clutch 13
In bonding state, prior art when needs start described hybrid vehicle, at clutch 13
In bonding state, electromotor 11 and described driving motor 14 are in connection status, and described startup motor 12 needs
To overcome the rotary inertia of described electromotor 11 and described driving motor 14, to the merit starting motor 12 simultaneously
Rate requires higher, and can produce bigger shake when starting motor 12 and being in high power state, reduces
The Consumer's Experience of described hybrid vehicle.
Summary of the invention
For solving above-mentioned technical problem, the invention provides a kind of clutch control method, control system and
Hybrid vehicle；Wherein, can produce when described control method is in order to alleviate conventional hybrid automobile starting
The problem of raw shake.
For realizing above-mentioned technical purpose, embodiments provide following technical scheme:
A kind of clutch control method, is applied to hybrid electric vehicle engine start-up course, described mixing
The startup motor that power vehicle includes electromotor, be arranged on described electromotor is connected with described electromotor
Clutch and the driving motor that is connected with described clutch；Described control method includes:
S100: receive startup electromotor instruction；
S200: cut-off clutch；
S300: utilize startup motor dragging electromotor to start；
S400: Guan Bi clutch.
Preferably, Guan Bi clutch includes:
S401: increase described clutch can the moment of torsion of transmission；
S402: judge described clutch the moment of torsion of transmission whether can reach the peak torque of its institute's energy transmission,
If it is not, then return S401；If it is, clutch is completely combined, described engine start completes.
Preferably, cut-off clutch includes:
S201: reduce described clutch can the moment of torsion of transmission；
S202: judge described clutch can the moment of torsion of transmission whether be zero, if it is, enter step
S300；If it is not, then return step S201.
Preferably, after utilizing startup motor dragging electromotor to start, also wrap before Guan Bi clutch
Include:
S34: judge whether described electromotor starts successfully, if it is, enter step S400；If it does not,
Then return step S300.
Preferably, it is judged that whether described electromotor starts successfully includes:
Judge whether the rotating speed of described electromotor exceedes preset rotation speed, if it is, described engine start
Success.
Preferably, it is judged that whether described electromotor starts successfully includes:
Judge whether described electromotor oil spout number of times is equal to preset times, if it is, described electromotor opens
Move successfully.
A kind of clutch control, is applied to hybrid vehicle, and described hybrid vehicle includes sending out
Motivation, be arranged on described electromotor start the clutch that is connected with described electromotor of motor and with
The driving motor that described clutch connects；Described control system includes: instruction reception unit, the first clutch
Control unit, the second clutch for clutch control unit and engine start unit；Wherein,
Described instruction reception unit is for receiving after startup electromotor instructs to described first clutch for clutch control
Unit sends cut-off clutch instruction；
Described first clutch for clutch control unit controls described clutch after receiving the instruction of described cut-off clutch and breaks
Open, and send engine start instruction to described engine start unit；
Described engine start unit utilizes described startup motor to drag after receiving described engine start instruction
Dynamic electromotor starts, and sends Guan Bi clutch instruction to described second clutch for clutch control unit；
After described second clutch for clutch control unit receives the instruction of described Guan Bi clutch, control described clutch
Guan Bi.
Preferably, described first clutch for clutch control unit is used for receiving described cut-off clutch and instructs and judge institute
State clutch can the moment of torsion of transmission whether be zero, if it is, send to described engine start unit
Engine start instruction；If it is not, then reduce described clutch can the moment of torsion of transmission.
Preferably, described second clutch for clutch control unit is used for receiving described Guan Bi clutch and instructs and judge institute
State clutch can the moment of torsion of transmission whether by the peak torque of its institute's energy transmission, if it is not, then increase institute
State clutch can the moment of torsion of transmission；If it is, described engine starting process completes.
Preferably, described engine start unit judges described after being used for receiving described engine start instruction
Whether electromotor starts successfully, if it is not, then utilize startup motor dragging electromotor to start；If
It is then to send Guan Bi clutch instruction to described second clutch for clutch control unit.
A kind of hybrid vehicle, including: the control system as described in above-described embodiment.
From technique scheme it can be seen that embodiments provide a kind of clutch control method,
Control system and hybrid vehicle；Wherein, first described control method disconnects
Clutch；Then utilizing and start motor dragging electromotor and start, the most described startup motor only needs gram
Take the rotary inertia of described electromotor, it is to avoid starting motor described in prior art needs output bigger
Power overcomes the situation of the rotary inertia of described electromotor and driving motor simultaneously, alleviates described startup horse
The shake reached；Finally Guan Bi clutch completes the engine starting process of described hybrid vehicle.Pass through
Above-mentioned analysis is it is found that apply described controlling party in described hybrid electric vehicle engine start-up course
Method can avoid the situation of described startup motor output higher-wattage, alleviates the shake of described startup motor,
Improve the Consumer's Experience of described hybrid vehicle.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to reality
Execute the required accompanying drawing used in example or description of the prior art to be briefly described, it should be apparent that below,
Accompanying drawing in description is only embodiments of the invention, for those of ordinary skill in the art, not
On the premise of paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
Fig. 1 is the structural representation of hybrid power automobile power system；
The flow chart of a kind of clutch control method that Fig. 2 provides for one embodiment of the present of invention；
The flow chart of a kind of clutch control method that Fig. 3 provides for a preferred embodiment of the present invention；
The structural representation of a kind of clutch control that Fig. 4 provides for one embodiment of the present of invention.
Detailed description of the invention
As described in background, hybrid vehicle of the prior art opens in engine starting process
Dynamic motor can produce bigger shake, reduces the Consumer's Experience of described hybrid vehicle.
In view of this, embodiments provide a kind of clutch control method, be applied to hybrid power
Automobile engine starting process, described hybrid vehicle includes electromotor, is arranged on described electromotor
Start the clutch that is connected with described electromotor of motor and the driving motor being connected with described clutch；
Described control method includes:
S100: receive startup electromotor instruction；
S200: cut-off clutch；
S300: utilize startup motor dragging electromotor to start；
S400: Guan Bi clutch.
Accordingly, the embodiment of the present invention additionally provides a kind of clutch control, is applied to hybrid power
Automobile, described hybrid vehicle includes electromotor, the startup motor that is arranged on described electromotor and
Clutch that described electromotor connects and the driving motor that is connected with described clutch；Described control system
Including: instruction reception unit, the first clutch for clutch control unit, the second clutch for clutch control unit and engine start
Unit；Wherein,
Described instruction reception unit is for receiving after startup electromotor instructs to described first clutch for clutch control
Unit sends cut-off clutch instruction；
Described first clutch for clutch control unit controls described clutch after receiving the instruction of described cut-off clutch and breaks
Open, and send engine start instruction to described engine start unit；
Described engine start unit utilizes described startup motor to drag after receiving described engine start instruction
Dynamic electromotor starts, and sends Guan Bi clutch instruction to described second clutch for clutch control unit；
After described second clutch for clutch control unit receives the instruction of described Guan Bi clutch, control described clutch
Guan Bi.
Accordingly, the embodiment of the present invention additionally provides a kind of hybrid vehicle, including: as any of the above-described
Control system described in embodiment.
From technique scheme it can be seen that embodiments provide a kind of clutch control method,
Control system and hybrid vehicle；Wherein, first described control method disconnects
Clutch；Then utilizing and start motor dragging electromotor and start, the most described startup motor only needs gram
Take the rotary inertia of described electromotor, it is to avoid starting motor described in prior art needs output bigger
Power overcomes the situation of the rotary inertia of described electromotor and driving motor simultaneously, alleviates described startup horse
The shake reached；Finally Guan Bi clutch completes the engine starting process of described hybrid vehicle.Pass through
Above-mentioned analysis is it is found that apply described controlling party in described hybrid electric vehicle engine start-up course
Method can avoid the situation of described startup motor output higher-wattage, alleviates the shake of described startup motor,
Improve the Consumer's Experience of described hybrid vehicle.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under creative work premise, broadly fall into the scope of protection of the invention.
Embodiments provide a kind of clutch control method, be applied to hybrid electric vehicle engine
Start-up course, described hybrid vehicle includes electromotor, the startup motor that is arranged on described electromotor,
The clutch being connected with described electromotor；As in figure 2 it is shown, described control method includes:
S100: receive startup electromotor instruction.
It should be noted that the instruction of described startup electromotor can come from the startup of described hybrid vehicle
Device；Can be from the entire car controller of described hybrid vehicle.Described startup is started by the present invention
The concrete source of machine instruction does not limit, concrete depending on practical situation.
S200: cut-off clutch.
On the basis of above-described embodiment, in one embodiment of the invention, cut-off clutch includes:
S201: reduce described clutch can the moment of torsion of transmission；
S202: judge described clutch can the moment of torsion of transmission whether be zero, if it is, enter step
S300；If it is not, then return step S201.
It should be noted that the combination degree of described clutch is the lowest, its can the moment of torsion of transmission the lowest,
When described clutch is fully disconnected, its can the moment of torsion of transmission be zero.Therefore step S202 works as clutch
Device can the moment of torsion of transmission be that the purpose entering back into engine starting process when zero is to ensure starting
In machine start-up course, described clutch is fully disconnected.So can avoid at described engine starting process
Middle electromotor remains in that with described driving motor and is necessarily connected, and described startup motor be need nonetheless remain for
The situation overcoming the rotary inertia of part driving motor occurs.
S300: utilize startup motor dragging electromotor to start.
Enter it should be noted that recycle described startup motor dragging electromotor after described clutch disconnects
When row starts, the power of described startup motor output has only to overcome the rotary inertia of described electromotor,
Avoid starting motor described in prior art needs output relatively high power to overcome described electromotor and driving simultaneously
The situation of the rotary inertia of motor, alleviates the shake of described startup motor, improves described hybrid power
The Consumer's Experience of the Consumer's Experience automobile of automobile.
S400: Guan Bi clutch.
On the basis of above-described embodiment, in another embodiment of the present invention, Guan Bi clutch includes:
S401: increase described clutch can the moment of torsion of transmission；
S402: judge described clutch the moment of torsion of transmission whether can reach the peak torque of its institute's energy transmission,
If it is not, then return S401；If it is, clutch is completely combined, described engine start completes.
It should be noted that in a preferred embodiment of the invention, increasing described clutch can pass
The speed of dynamic moment of torsion can not be too fast, it is achieved being steadily connected between described electromotor with described driving motor.
Due to be gradually increased described clutch can the moment of torsion of transmission to realize described electromotor and described driving motor
Between the specific implementation method steadily connected be well known to those skilled in the art, the present invention is at this not
Repeat.
Also, it should be noted when described clutch is completely combined, described clutch can the torsion of transmission
Square reach its can the peak torque of transmission.Therefore, when described clutch the moment of torsion of transmission can reach it
Can the peak torque of transmission time, described clutch is completely combined.
Described clutch can the peak torque of transmission according to described maximum engine torque depending on, typically
For, in order to avoid the situation of overload, the energy transmission of described clutch institute occurs in described hybrid vehicle
Peak torque should be less than or equal to described maximum engine torque.Described clutch can be passed by the present invention
The concrete value of dynamic peak torque does not limit, concrete depending on practical situation.
On the basis of above-described embodiment, in yet another embodiment of the present invention, startup motor is utilized to drag
After dynamic electromotor starts, also include before Guan Bi clutch:
S34: judge whether described electromotor starts successfully, if it is, enter step S400；If it does not,
Then return step S300.
It should be noted that the purpose of step S34 is to enter back into step after confirming engine start success
S400, it is to avoid enter step S400 in the case of engine start failure, cause whole start-up course not
Can complete.
On the basis of above-described embodiment, An embodiment provides and start described in two kinds of judgements
Whether machine starts successful method, specifically includes:
Method 1: judge whether the rotating speed of described electromotor exceedes preset rotation speed, if it is, described in start
Machine starts successfully.
It should be noted that due to engine start success after rotating speed by electromotor self number of cylinders, drive
The factors such as dynamic motor performance are relevant, and the concrete value of the most described preset rotation speed is moved in different configuration of mixing
In power vehicle different.In one embodiment of the invention, the span of described preset rotation speed
For 50rpm-1500rpm, including endpoint value.The present invention is to the concrete value of described preset rotation speed and value model
Enclose and do not limit, concrete depending on practical situation.
Method 2: judge whether described electromotor oil spout number of times is equal to preset times, if it is, described
Motivation starts successfully.
It should be noted that due to the difference of electromotor injection mode and the difference of each distributive value, right
In the hybrid vehicle of the dissimilar electromotor of outfit, the concrete value of described preset times is the most different.
In one embodiment of the invention, the span of described preset times is more than or equal to 1 time.The present invention
The concrete value of described preset times is not limited, concrete depending on practical situation.
One specific embodiment of the present invention provides the idiographic flow of a kind of control method, as it is shown on figure 3,
Including:
S11: receive startup electromotor instruction；
S12: reduce described clutch can the moment of torsion of transmission；
S13: judge described clutch can the moment of torsion of transmission whether be zero, if it is, enter step S14；
If it is not, then return step S12；
S14: utilize startup motor dragging electromotor to start；
S15: increase described clutch can the moment of torsion of transmission；
S16: judge described clutch the moment of torsion of transmission whether can reach the peak torque of its institute's energy transmission,
If it is not, then return S15；If it is, clutch is completely combined, described engine start completes.
In sum, embodiments providing a kind of clutch control method, described control method exists
First cut-off clutch before engine start；Then startup motor dragging electromotor is utilized to start,
The most described startup motor only need to overcome the rotary inertia of described electromotor, it is to avoid institute in prior art
State startup motor needs output relatively high power to overcome described electromotor and the rotary inertia driving motor simultaneously
Situation, alleviates the shake of described startup motor；Finally Guan Bi clutch completes described hybrid vehicle
Engine starting process.By above-mentioned analysis it is found that open at described hybrid electric vehicle engine
Apply described control method can avoid the situation of described startup motor output higher-wattage during Dong, subtract
The light shake of described startup motor, improves the Consumer's Experience of described hybrid vehicle.
Accordingly, embodiments provide a kind of clutch control, be applied to hybrid power vapour
Car, described hybrid vehicle includes electromotor, the startup motor that is arranged on described electromotor and institute
State the clutch that electromotor connects and the driving motor being connected with described clutch；As shown in Figure 4, institute
State control system to include: instruction reception unit the 100, first clutch for clutch control unit the 200, second clutch for clutch control
Unit 400 and engine start unit 300；Wherein,
Described instruction reception unit 100 is for receiving after startup electromotor instructs to described first clutch
Control unit 200 sends cut-off clutch instruction；
Described first clutch for clutch control unit 200 controls described clutch after receiving the instruction of described cut-off clutch
Device disconnects, and sends engine start instruction to described engine start unit 300；
Described engine start unit 300 utilizes described startup horse after receiving described engine start instruction
Reach dragging electromotor to start, and send Guan Bi clutch finger to described second clutch for clutch control unit 400
Order；
After described second clutch for clutch control unit 400 receives the instruction of described Guan Bi clutch, control described from
Clutch closes.
It should be noted that the instruction of described startup electromotor can come from the startup of described hybrid vehicle
Device；Can be from the entire car controller of described hybrid vehicle.Described startup is started by the present invention
The concrete source of machine instruction does not limit, concrete depending on practical situation.
Also, it should be noted recycle described startup motor dragging electromotor after described clutch disconnects
When starting, the power of described startup motor output has only to overcome the rotary inertia of described electromotor i.e.
Can, it is to avoid described in prior art start motor need export relatively high power overcome simultaneously described electromotor and
Drive the situation of the rotary inertia of motor, alleviate the shake of described startup motor, improve described mixing
The Consumer's Experience of the Consumer's Experience automobile of power vehicle.
On the basis of above-described embodiment, in one embodiment of the invention, described first clutch for clutch control
Unit 200 for receive described cut-off clutch and instruct and judge described clutch the moment of torsion of energy transmission be
No is zero, if it is, send engine start instruction to described engine start unit 300；If
No, then reduce described clutch can the moment of torsion of transmission.
It should be noted that the combination degree of described clutch is the lowest, its can the moment of torsion of transmission the lowest,
When described clutch is fully disconnected, its can the moment of torsion of transmission be zero.The most in the present embodiment when from
Clutch can the moment of torsion of transmission be to enter back into the purpose of engine starting process when zero to be to ensure to send out carrying out
In motivation start-up course, described clutch is fully disconnected.So can avoid in described engine start mistake
In journey, electromotor remains in that with described driving motor and is necessarily connected, and described startup motor is still needed
Part to be overcome drives the situation of the rotary inertia of motor to occur.
On the basis of above-described embodiment, in another embodiment of the present invention, described second clutch control
Unit processed 400 for receive described Guan Bi clutch and instruct and judge described clutch the moment of torsion of energy transmission
Whether by its peak torque of energy transmission, if it is not, then increase described clutch can the moment of torsion of transmission；
If it is, described engine starting process completes.
It should be noted that in a preferred embodiment of the invention, increasing described clutch can pass
The speed of dynamic moment of torsion can not be too fast, it is achieved being steadily connected between described electromotor with described driving motor.
Due to be gradually increased described clutch can the moment of torsion of transmission to realize described electromotor and described driving motor
Between the specific implementation method steadily connected be well known to those skilled in the art, the present invention is at this not
Repeat.
Also, it should be noted when described clutch is completely combined, described clutch can the torsion of transmission
Square reach its can the peak torque of transmission.Therefore, when described clutch the moment of torsion of transmission can reach it
Can the peak torque of transmission time, described clutch is completely combined.
Described clutch can the peak torque of transmission according to described maximum engine torque depending on, typically
For, in order to avoid the situation of overload, the energy transmission of described clutch institute occurs in described hybrid vehicle
Peak torque should be less than or equal to described maximum engine torque.Described clutch can be passed by the present invention
The concrete value of dynamic peak torque does not limit, concrete depending on practical situation.
On the basis of above-described embodiment, in a preferred embodiment of the invention, described electromotor opens
Moving cell 300 judges whether described electromotor starts successfully after being used for receiving described engine start instruction,
If it is not, then utilize startup motor dragging electromotor to start；If it is, to described second clutch
Control unit 400 sends Guan Bi clutch instruction.
It should be noted that confirming that the success of described engine start is again to described second clutch for clutch control unit
400 purposes sending Guan Bi clutch instruction are to be closed again clutch after confirming engine start success；Keep away
Exempt to close clutch in the case of engine start failure, cause whole start-up course not complete.
On the basis of above-described embodiment, An embodiment provides and start described in two kinds of judgements
Whether machine starts successful method, a kind of is whether the rotating speed judging described electromotor exceedes preset rotation speed,
If it is, the success of described engine start；Another kind is to judge that whether etc. described electromotor oil spout number of times
In preset times, if it is, the success of described engine start.
It should be noted that due to engine start success after rotating speed by electromotor self number of cylinders, drive
The factors such as dynamic motor performance are relevant, and the concrete value of the most described preset rotation speed is moved in different configuration of mixing
In power vehicle different.In one embodiment of the invention, the span of described preset rotation speed
For 50rpm-1500rpm, including endpoint value.The present invention is to the concrete value of described preset rotation speed and value model
Enclose and do not limit, concrete depending on practical situation.
Also, it should be noted due to the difference of electromotor injection mode and the difference of each distributive value,
For being equipped with the hybrid vehicle of dissimilar electromotor, the concrete value of described preset times is the most not
With.In one embodiment of the invention, the span of described preset times is more than or equal to 1 time.This
Invent the concrete value to described preset times not limit, concrete depending on practical situation.
On the basis of above-described embodiment, in one particular embodiment of the present invention, described command reception
Unit the 100, first clutch for clutch control unit the 200, second clutch for clutch control unit 400 and engine start unit 300
It is integrated in the entire car controller of described hybrid vehicle；In other embodiments of the invention, described
Instruction reception unit the 100, first clutch for clutch control unit the 200, second clutch for clutch control unit 400 and electromotor open
Moving cell 300 can also be separately set in described hybrid vehicle.This is not limited by the present invention,
Concrete depending on practical situation.
Accordingly, the embodiment of the present invention additionally provides a kind of hybrid vehicle, including: as any of the above-described
Control system described in embodiment.
Specifically, described hybrid vehicle includes: drive system, dynamical system and as the most any of the above-described
Control system described in embodiment；Wherein,
Described dynamical system includes:
Electromotor；
The startup motor being arranged on described electromotor；
The clutch being connected with described electromotor；
The driving motor being connected with described clutch；
The change speed gear box being connected with described driving motor, described change speed gear box is connected with described drive system；
Described control system is connected with described dynamical system.
In sum, a kind of clutch control method, control system and mixing are embodiments provided
Power vehicle；Wherein, described control method first cut-off clutch；Then profit
Starting with starting motor dragging electromotor, the most described startup motor only need to overcome described electromotor
Rotary inertia, it is to avoid start motor described in prior art needs output relatively high power to overcome institute simultaneously
State the situation of the rotary inertia of electromotor and driving motor, alleviate the shake of described startup motor；Finally
Guan Bi clutch completes the engine starting process of described hybrid vehicle.Can be sent out by above-mentioned analysis
Existing, apply described control method to avoid in described hybrid electric vehicle engine start-up course described
Start the situation of motor output higher-wattage, alleviate the shake of described startup motor, improve described mixed
Close the Consumer's Experience of power vehicle.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
For device disclosed in embodiment, owing to it corresponds to the method disclosed in Example, so describing
Fairly simple, relevant part sees method part and illustrates.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
The present invention.Multiple amendment to these embodiments will be aobvious and easy for those skilled in the art
See, generic principles defined herein can without departing from the spirit or scope of the present invention,
Realize in other embodiments.Therefore, the present invention is not intended to be limited to the embodiments shown herein,
And it is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (11)
1. a clutch control method, is applied to hybrid electric vehicle engine start-up course, described mixed
Close power vehicle include electromotor, the startup motor that is arranged on described electromotor and described electromotor even
The clutch connect and the driving motor being connected with described clutch；It is characterized in that, described control method
Including:
S100: receive startup electromotor instruction；
S200: cut-off clutch；
S300: utilize startup motor dragging electromotor to start；
S400: Guan Bi clutch.
Control method the most according to claim 1, it is characterised in that Guan Bi clutch includes:
S401: increase described clutch can the moment of torsion of transmission；
S402: judge described clutch the moment of torsion of transmission whether can reach the peak torque of its institute's energy transmission,
If it is not, then return S401；If it is, clutch is completely combined, described engine start completes.
Control method the most according to claim 1, it is characterised in that cut-off clutch includes:
S201: reduce described clutch can the moment of torsion of transmission；
S202: judge described clutch can the moment of torsion of transmission whether be zero, if it is, enter step
S300；If it is not, then return step S201.
Control method the most according to claim 1, it is characterised in that utilize startup motor dragging to send out
After motivation starts, also include before Guan Bi clutch:
S34: judge whether described electromotor starts successfully, if it is, enter step S400；If it does not,
Then return step S300.
Control method the most according to claim 4, it is characterised in that whether judge described electromotor
Start and successfully include:
Judge whether the rotating speed of described electromotor exceedes preset rotation speed, if it is, described engine start
Success.
Control method the most according to claim 4, it is characterised in that whether judge described electromotor
Start and successfully include:
Judge whether described electromotor oil spout number of times is equal to preset times, if it is, described electromotor opens
Move successfully.
7. a clutch control, is applied to hybrid vehicle, and described hybrid vehicle includes
Electromotor, be arranged on described electromotor start the clutch that is connected with described electromotor of motor and
The driving motor being connected with described clutch；It is characterized in that, described control system includes: command reception
Unit, the first clutch for clutch control unit, the second clutch for clutch control unit and engine start unit；Wherein,
Described instruction reception unit is for receiving after startup electromotor instructs to described first clutch for clutch control
Unit sends cut-off clutch instruction；
Described first clutch for clutch control unit controls described clutch after receiving the instruction of described cut-off clutch and breaks
Open, and send engine start instruction to described engine start unit；
Described engine start unit utilizes described startup motor to drag after receiving described engine start instruction
Dynamic electromotor starts, and sends Guan Bi clutch instruction to described second clutch for clutch control unit；
After described second clutch for clutch control unit receives the instruction of described Guan Bi clutch, control described clutch
Guan Bi.
Control system the most according to claim 7, it is characterised in that described first clutch for clutch control list
Unit for receive described cut-off clutch and instruct and judge described clutch the moment of torsion of energy transmission be whether
Zero, if it is, send engine start instruction to described engine start unit；If it is not, then fall
Low described clutch can the moment of torsion of transmission.
Control system the most according to claim 7, it is characterised in that described second clutch for clutch control list
Unit for receive described Guan Bi clutch instruct and judge described clutch energy transmission moment of torsion whether be it
Can the peak torque of transmission, if it is not, then increase the moment of torsion of described clutch institute energy transmission；If it is,
The most described engine starting process completes.
Control system the most according to claim 7, it is characterised in that described engine start list
Unit judges whether described electromotor starts successfully after being used for receiving described engine start instruction, if it does not,
Startup motor dragging electromotor is then utilized to start；If it is, to described second clutch for clutch control unit
Send Guan Bi clutch instruction.
11. 1 kinds of hybrid vehicles, it is characterised in that including: such as any one of claim 7-10 institute
The control system stated.
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| CN201610456923.7A CN105966393A (en) | 2016-06-21 | 2016-06-21 | Clutch control method, control system and hybrid electric vehicle |
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| CN201610456923.7A CN105966393A (en) | 2016-06-21 | 2016-06-21 | Clutch control method, control system and hybrid electric vehicle |
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