CN108150642A - Six Quick-drying type DCT upshift process clutch start electrical fault fault tolerant control methods - Google Patents
Six Quick-drying type DCT upshift process clutch start electrical fault fault tolerant control methods Download PDFInfo
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- CN108150642A CN108150642A CN201711204232.9A CN201711204232A CN108150642A CN 108150642 A CN108150642 A CN 108150642A CN 201711204232 A CN201711204232 A CN 201711204232A CN 108150642 A CN108150642 A CN 108150642A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1224—Adapting to failures or work around with other constraints, e.g. circumvention by avoiding use of failed parts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1276—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is a friction device, e.g. clutches or brakes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/12—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures
- F16H2061/1256—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected
- F16H2061/1296—Detecting malfunction or potential malfunction, e.g. fail safe; Circumventing or fixing failures characterised by the parts or units where malfunctioning was assumed or detected the failing part is an electric machine forming part of the transmission
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Hybrid Electric Vehicles (AREA)
Abstract
The present invention relates to a kind of six Quick-drying type DCT upshift process clutch start electrical fault fault tolerant control methods, to carry out faults-tolerant control to the possible breakdown of clutch start motor in torque phase and inertia phase stage, it is characterized in that, the possible breakdown operating mode of the clutch start motor includes：Fault condition 1：Upshift instruction is received when keeping off stable operation, high gear clutch start motor breaks down at this time；Fault condition 2：Upshift process torque phase stage separation clutch start motor breaks down；Fault condition 3：Upshift process torque phase stage engagement clutch start motor breaks down；Fault condition 4：Upshift process inertia phase stage engagement clutch start motor breaks down.Compared with prior art, the present invention has many advantages, such as suitable for various faults situation, safe and efficient.
Description
Technical field
The present invention relates to automatic gear-box Failure Detection and Fault-Tolerent Control field, more particularly, to six Quick-drying type DCT of one kind
Upshift process clutch start electrical fault fault tolerant control method.
Background technology
Dry type DCT two clutches during upshift work alternatively, due to vehicle shift gears in normal driving process compared with
To be frequent, over time, the probability that clutch actuating mechanism breaks down during upshift gradually increases, so needle
Particularly important is become to the fault tolerant control method of clutch actuating mechanism failure.Li Kangli be directed to wet type DCT, have studied for from
The fault tolerant control method of clutch control valve failure, after 1 control valve of clutch breaks down, vehicle can only be kept off with even number and be run,
After 2 control valve of clutch breaks down, vehicle can only be kept off with odd number and be run, and be kept off in text there is no research for DCT liftings
The fault tolerant control method of journey clutch control valve failure.Since the DCT clutch actuating mechanisms that the present invention is directed to are motor, so
For the clutch start electrical fault that DCT upshift process each stages are likely to occur, corresponding faults-tolerant control side is formulated respectively
Method ensures that vehicle can continue safely and effectively to travel after clutch start motor breaks down.
Invention content
It is an object of the present invention to overcome the above-mentioned drawbacks of the prior art and provide a kind of six Quick-drying type DCT liters
Gear process clutch start electrical fault fault tolerant control method.
The purpose of the present invention can be achieved through the following technical solutions：
A kind of six Quick-drying type DCT upshift process clutch start electrical fault fault tolerant control methods, in torque phase and
The inertia phase stage carries out the possible breakdown of clutch start motor faults-tolerant control, the possibility event of the clutch start motor
Barrier operating mode includes：
Fault condition 1：Upshift instruction is received when keeping off stable operation, event occurs for high gear clutch start motor at this time
Barrier；
Fault condition 2：Upshift process torque phase stage separation clutch start motor breaks down；
Fault condition 3：Upshift process torque phase stage engagement clutch start motor breaks down；
Fault condition 4：Upshift process inertia phase stage engagement clutch start motor breaks down.
When the possible breakdown operating mode of clutch start motor is fault condition 1, using the clutch that electrical fault does not occur
Device completes single clutch jump upshift.
The single clutch jump upshift specifically includes following steps：
The corresponding clutch separation of low gear that first electrical fault will not occur, it is complete in the clutch that electrical fault does not occur
After fully separating, control synchronizer completion plucks gear, eliminates idle stroke and operation of putting into gear, and after the completion of putting into gear, motor does not occur for control
The clutch engagement of failure, while adjusts engine speed, is allowed to same with clutch driven plate rotating speed that electrical fault does not occur
Step, after synchronization, maximum displacement is compacted to, while motor torque is switched to by the clutch that electrical fault does not occur
Operator demand's value completes single clutch jump upshift.
When the possible breakdown operating mode of clutch start motor is fault condition 2, according to separation clutch start motor not
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the failure of ad eundem.
It is described according to the separation different grades of failure of clutch start motor, for the purpose of vehicle shock extent minimum, adopt
With corresponding method complete control action the specific steps are：
If the fault level for detaching clutch start motor is 1, stops motor power supply at once, electrical fault does not occur
Engagement clutch continues to engage according to revised rules of engagement, after the clutch that electrical fault occurs is completely disengaged, enters
The inertia phase stage adjusts engine speed up to consistent with the clutch driven plate rotating speed of electrical fault does not occur, in engine
During speed governing, keep the engagement clutch transmission torque that electrical fault does not occur constant, it rapidly will not after synchronization
The clutch that electrical fault occurs is compacted to maximum displacement and motor torque is switched to operator demand's value, steady into high gear
Fixed operation；
If the fault level of separation clutch start motor for 2, will occur the clutch of electrical fault according to using the time as
The law of segregation separation that the bang-bang control decisions of optimal performance index go out, the engagement clutch that electrical fault does not occur are pressed
Continue to engage according to revised rules of engagement, after the clutch that electrical fault occurs is completely disengaged, into the inertia phase stage, adjust
Engine speed is saved up to consistent with the clutch driven plate rotating speed of electrical fault does not occur, during engine governed speed,
Keep do not occur electrical fault engagement clutch transmission torque it is constant, after synchronization rapidly by do not occur electrical fault from
Clutch is compacted to maximum displacement and motor torque is switched to operator demand's value, into high gear stable operation；
If the fault level for detaching clutch start motor is 3, the upshift process torque phase stage originally formulated is followed
Control method complete upshift.
When the possible breakdown operating mode of clutch start motor is fault condition 3, according to separation clutch start motor not
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the failure of ad eundem.
It is described according to the separation different grades of failure of clutch start motor, for the purpose of vehicle shock extent minimum, adopt
With corresponding method complete control action the specific steps are：
If the fault level for engaging clutch start motor is 1, stops motor power supply at once, electrical fault will not occur
Separation clutch connect again according to the rules of engagement of clutch separation speed proportion relation with electrical fault occurs
It closes, after the clutch that electrical fault occurs is completely disengaged, into the inertia phase stage, adjusts engine speed until with not occurring
The clutch driven plate rotating speed being re-engaged of electrical fault is consistent, during engine governed speed, keeps what is be re-engaged
Clutch transmission torque is constant, and the clutch that electrical fault does not occur is compacted to maximum displacement rapidly after synchronization and is incited somebody to action
Motor torque switches to operator demand's value, reenters low gear stable operation；
If the fault level of engagement clutch start motor for 2, will occur the clutch of electrical fault according to using the time as
The law of segregation separation that the bang-bang control decisions of optimal performance index go out, at this time to ensure that vehicle shock extent is minimum, does not send out
Generator failure detaches engagement of the clutch according to the clutch separation speed proportion relation with electrical fault occurs
Rule is re-engaged, and after the clutch that electrical fault occurs is completely disengaged, into the inertia phase stage, it is straight to adjust engine speed
It is extremely consistent with the clutch driven plate rotating speed being re-engaged of electrical fault does not occur, during engine governed speed, keep
The clutch transmission torque being re-engaged is constant, and the clutch that electrical fault does not occur is compacted to maximum rapidly after synchronization
Displacement and motor torque is switched into operator demand's value, reenter low gear stable operation；
If the fault level for engaging clutch start motor is 3, the upshift process torque phase stage originally formulated is followed
Control method complete upshift.
When the possible breakdown operating mode of clutch start motor is fault condition 4, according to separation clutch start motor not
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the failure of ad eundem.
It is described according to the separation different grades of failure of clutch start motor, for the purpose of vehicle shock extent minimum, adopt
With corresponding method complete control action the specific steps are：
If the fault level for engaging clutch start motor is 1, stop motor power supply at once, electrical fault is occurring
During clutch separation, engine speed is adjusted up to the clutch with electrical fault does not occur and has been kept completely separate is driven
Disk rotating speed is consistent, completely disengaged and clutch principal and subordinate's Moving plate rotating speed of electrical fault does not occur in the clutch that electrical fault occurs
After consistent, the clutch that electrical fault does not occur and has been kept completely separate is re-engaged and is compacted to maximum displacement rapidly and will send out
Motivation torque switches to operator demand's value, reenters low gear stable operation；
If the fault level of engagement clutch start motor for 2, will occur the clutch of electrical fault according to using the time as
The law of segregation separation that the bang-bang of optimal performance index is controlled, in the mistake for the clutch separation that electrical fault occurs
Cheng Zhong adjusts engine speed up to consistent with the clutch driven plate rotating speed that electrical fault does not occur and has been kept completely separate, when
Occur electrical fault clutch it is completely disengaged it is consistent with clutch principal and subordinate's Moving plate rotating speed that electrical fault does not occur after, will not send out
The clutch that generator failure is kept completely separate at this time is re-engaged and is compacted to maximum displacement rapidly and switches motor torque
To operator demand's value, low gear stable operation is reentered；
If the fault level for engaging clutch start motor is 3, the upshift process inertia phase stage originally formulated is followed
Control method complete upshift.
The rules of engagement of the certain proportion relationship is：
Wherein,Transmission torque rate of change for the separation clutch that electrical fault does not occur,For electrical fault occurs
Separation clutch transmission torque rate of change, i1The corresponding gearbox-gear of separation clutch for electrical fault does not occur passes
Dynamic ratio, i2For the corresponding gearbox-gear gearratio of separation clutch of electrical fault occurs.
Compared with prior art, the present invention has the following advantages：
The structural redundancy characteristic that the present invention makes full use of DCT and has double clutches and its actuation mechanism has been formulated for DCT liters
The fault tolerant control method of gear process clutch start electrical fault, the advantage is that：
1st, DCT vehicles receive upshift instruction when keeping off stable operation, but high gear clutch start motor occurs at this time
Failure can utilize the fault tolerant control method that the present invention formulates to realize jump upshift, ensure that vehicle wherein make by a clutch
Dynamic motor still can continue safely and efficiently to travel after breaking down with higher speed；
If the 2, DCT vehicles break down in upshift process torque phase stage separation clutch start motor, this can be utilized
The fault tolerant control method formulated is invented, ensures that vehicle continues to complete upshift operation after clutch start motor breaks down, makes
Vehicle efficiently travels；
If the 3, DCT vehicles break down in upshift process torque phase stage engagement clutch start motor, this can be utilized
The fault tolerant control method formulated is invented, vehicle is made to retract low gear operation again after clutch start motor breaks down, is had
Effect engine power is avoided since clutch start electrical fault can not be directly passed to vehicle and cause vehicle can not be just
Often traveling.
If the 4, DCT vehicles break down in upshift process inertia phase stage engagement clutch start motor, this can be utilized
The fault tolerant control method formulated is invented, vehicle is equally made to retract low gear stabilization again after clutch start motor breaks down
Operation ensures that vehicle continues safely and efficiently to travel after clutch start motor breaks down.
Description of the drawings
Fig. 1 for DCT vehicles 1 gear with 30% pedal aperture stable operation when, receive upshift instruction, but 2 gear institute it is right
The fault tolerant control method that the clutch start motor answered breaks down, wherein, (1a) is schemed for engine and clutch torque curve,
Scheme (1b) for throw-out-of clutch stage engine and clutch rotational speed curve, figure (1c) for clutch zygophase engine with from
Clutch speed curves.
Fig. 2 is under 30% accelerator pedal aperture, is risen for 2 gear process torque phase stages in the gear of DCT vehicles 1, the corresponding clutch of 1 gear
The fault tolerant control method of 1 grade of failure occurs for device start motor, wherein, figure (2a) is engine and clutch torque curve, is schemed
(2b) is engine and clutch rotational speed curve.
Fig. 3 is under 30% accelerator pedal aperture, is risen for 2 gear process torque phase stages in the gear of DCT vehicles 1, the corresponding clutch of 1 gear
The fault tolerant control method of 2 grades of failures occurs for device start motor, wherein, figure (3a) is engine and clutch torque curve, is schemed
(3b) is engine and clutch rotational speed curve.
Fig. 4 is under 30% accelerator pedal aperture, is risen for 2 gear process torque phase stages in the gear of DCT vehicles 1, the corresponding clutch of 2 gears
The fault tolerant control method of 1 grade of failure occurs for device start motor, wherein, figure (4a) is engine and clutch torque curve, is schemed
(4b) is engine and clutch rotational speed curve.
Fig. 5 is under 30% accelerator pedal aperture, is risen for 2 gear process torque phase stages in the gear of DCT vehicles 1, the corresponding clutch of 2 gears
The fault tolerant control method of 2 grades of failures occurs for device start motor, wherein, figure (5a) is engine and clutch torque curve, is schemed
(5b) is engine and clutch rotational speed curve.
Fig. 6 is under 30% accelerator pedal aperture, is risen for 2 gear process inertia phase stages in the gear of DCT vehicles 1, the corresponding clutch of 2 gears
The fault tolerant control method of 1 grade of failure occurs for device start motor, wherein, figure (6a) is engine and clutch torque curve, is schemed
(6b) is engine and clutch rotational speed curve.
Fig. 7 is under 30% accelerator pedal aperture, is risen for 2 gear process inertia phase stages in the gear of DCT vehicles 1, the corresponding clutch of 2 gears
The fault tolerant control method of 2 grades of failures occurs for device start motor, wherein, figure (7a) is engine and clutch torque curve, is schemed
(7b) is engine and clutch rotational speed curve.
Fig. 8 is the faults-tolerant control strategy schematic diagram for fault condition 1.
Fig. 9 is the faults-tolerant control strategy schematic diagram for fault condition 2.
Figure 10 is the faults-tolerant control strategy schematic diagram for fault condition 3.
Figure 11 is the faults-tolerant control strategy schematic diagram for fault condition 4.
Specific embodiment
Embodiment of the present invention is described in the following with reference to the drawings and specific embodiments, it is clear that described embodiment
Only it is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, such as six Quick-drying type DCT
The failure tolerant method of downshift process clutch start motor, shall fall within the protection scope of the present invention.
The method of six Quick-drying type DCT upshift process clutch start Diagnosing Faults of Electrical is clutch start parameter of electric machine shape
State is estimated.By the parameter and state of real-time estimation clutch start motor, to judge the current state of motor, so as to motor
Carry out fault diagnosis.The parameter and state of estimation mainly include：Turn-to-turn winding resistance value R, back EMF coefficient ke, motor busbar electricity
Flow I.Due to the number of turn of turn-to-turn winding direct proportionality approximate with the resistance value size of turn-to-turn winding, and turn-to-turn winding resistance value is big
The small size for directly affecting bus current, thus can by estimate turn-to-turn winding resistance value and bus current size come to motor
Shorted-turn fault is diagnosed；During due to working as motor temperature raising (decline), the turn-to-turn winding resistance value of motor, which can increase, (to be subtracted
It is small), and the variation of turn-to-turn winding resistance value can directly affect the size of bus current, therefore equally can be by estimating the resistance of turn-to-turn winding
Value and the size of bus current diagnose come the excess temperature failure to motor.Due to the magnetic field intensity and its anti-electricity of motor permanent magnet
Emf coefficient is positively correlated, thus can by the back EMF coefficient of estimating clutch start motor come the demagnetization failure to motor into
Row diagnosis.
The division of clutch start electrical fault grade is based on its parameter (R, ke) variable quantity, for motor stator winding
Shorted-turn fault, as R≤0.5R0When be defined as level fault, 0.5R0＜ R≤0.7R0When be defined as secondary failure, 0.7R0
＜ R≤0.95R0When be defined as three-level fault, wherein R0Resistance value for machine winding under normal condition.For motor excess temperature failure,
Since the machine winding class of insulation is B, the maximum temperature that motor insulation material can bear is 130 degree, so motor is worked as in definition
It is level fault when temperature is more than 130 degree, motor temperature is defined as secondary failure when 80-130 is spent, and motor temperature is in 50-80
Three-level fault is defined as when spending.Utilize relationship R=((T+K)/(T between machine winding resistance value and motor temperature0+K))R0(K=235,
T0For environment temperature, it is taken as 26 degree), the critical-temperature of above-mentioned division fault level can be converted as critical winding resistance value, division
As a result it is as R >=1.4R0When be defined as level fault, 1.4R0＞ R >=1.22R0When be defined as secondary failure, 1.22R0＞ R >=
1.1R0When be defined as three-level fault.For motor demagnetization failure, work as ke≤0.5k0When be defined as level fault, 0.5k0＜ ke≤
0.8k0When be defined as secondary failure, 0.8k0＜ ke≤0.95k0When be defined as three-level fault, wherein k0For under motor normal condition
Back EMF coefficient.
For different fault levels, it is for the processing mode of faulty motor in itself：When clutch start motor occurs
During level fault, it need to stop powering to motor at once, motor is allowed to be stopped.When secondary failure occurs for clutch start motor
When, it is contemplated that the working time of faulty motor need to be shortened as possible, failure is avoided to aggravate, is referred to so using by optimal performance of the time
Target control method decision set out generator failure clutch law of segregation, after clutch is kept completely separate, faulty motor
It stops using.Since electrical fault can cause clutch start motor output torque to reduce, in design time optimal control algorithm
When this influence has been considered.The timing-optimal control algorithm for the DCT upshift process torque phase stages is designed, needs to build first
The kinetic model in DCT shift process torque phase stages, and the model built is simplified, the model after simplifying is：(wherein Tc1、Tc2For clutch transmission torque, K1、K2It is equivalent for clutch transmission torque
Conversion factor, T on to output shaft of gear-boxrFor load torque, ωsRotating speed, c for transmission output shaftsTo be equivalent to speed change
Damped coefficient, the I of device output shaftsFor the equivalent rotary inertia to transmission output shaft), based on six Quick-drying type DCT shift processes
Torque phase kinetic model chooses state variablex2=Tc1、x3=Tc2, controlled quentity controlled variableIt is adopted in the torque phase stage
Principle with " no crash change of speed " is：State variable based on mentioned above principle and setting, which can be derived, shifted gears
The state equation in journey torque phase stage：
The performance indicator of the control algolithm is：Range-the u of controlled quentity controlled variable umax0 (wherein, u of≤u ＜maxIt is determining be synthesis examine
Consider the characteristic of clutch start motor and influence of the failure to clutch start motor), association's state vector of system is (λ1、λ2、
λ3), Hamiltonian is H=1+ λ1u((K1/Is)-(i1K2/i2K1))-(cs/Is)x1λ1+λ2u-λ3(i1/i2) u, regular equation isH change rates are H*(tf)=0, boundary condition areλ2
(tf)=ν based on above-mentioned formula, can solve the shift process torque phase stage, the corresponding clutch of motor of 2 grades of failures occurs
Device law of segregation.The timing-optimal control algorithm for the DCT upshift process inertia phase stages is designed, equally needs to build first
DCT shift process inertia phase kinetic models, and the model built is simplified, the model after simplifying is：(wherein Tc1For clutch transmission torque, K1It is equivalent to gearbox output for clutch transmission torque
Conversion factor, T on axisrFor load torque, ωsRotating speed, c for transmission output shaftsFor the equivalent resistance to transmission output shaft
Buddhist nun's coefficient, IsFor the equivalent rotary inertia to transmission output shaft), based on six Quick-drying type DCT shift process inertia phase dynamics
Model chooses state variablex2=Tc1, controlled quentity controlled variableIt can be pushed away using the state variable of kinetic model and setting
The state equation of guiding system：The performance indicator of the control algolithm is：Range-the u of controlled quentity controlled variable umax0 (wherein, u of≤u ＜maxIt is determining be the characteristic for considering clutch start motor
With influence of the failure to clutch start motor), association's state vector of system is (λ1、λ2), Hamiltonian is H=1+ λ1K1(u/Is)-λ1(cs/Is)x1+λ2U, regular equation areH change rates are H*(tf)=0, boundary condition areλ2(tf)=ν based on above-mentioned formula, can solve the shift process inertia phase stage,
The corresponding clutch separation rule of motor of 2 grades of failures occurs.When three-level fault occurs for clutch start motor, do not do temporarily
Any processing.The failure tolerant control of six Quick-drying type double-clutch automatic gearbox upshift process clutch start motors hereafter designed
Method processed is all based on the above-mentioned processing mode to faulty motor and is unfolded.
It is under 30% accelerator pedal aperture as shown in Figure 1, DCT vehicles receive upshift and refer in 1 gear stable operation
It enables, but the clutch start motor corresponding to 2 gears breaks down, and odd number is utilized to keep off corresponding clutch at this time and completes isolated conjunction
The fault tolerant control method for upshift of jumping.Fault tolerant control method for such failure it is characterized in that：It needs first that 1 gear is corresponding
The clutch separation of electrical fault is not occurred, law of segregation uses class index curve, is 420ms the time required to separation, when not sending out
After the clutch of generator failure is kept completely separate, control synchronizer completion plucks gear, eliminates idle stroke, operation (position of putting into gear of putting into gear
For 3 gears), after the completion of putting into gear, the clutch engagement of electrical fault does not occur for control, at the same time adjusts engine speed, makes
The clutch driven plate rotating speed with electrical fault does not occur it is consistent.When clutch principal and subordinate's Moving plate rotating speed that electrical fault does not occur
After synchronizing, the clutch that electrical fault does not occur is compacted to maximum displacement, while motor torque is switched to driving rapidly
Member's requirements complete single clutch jump upshift.Under 30% pedal aperture, DCT vehicles are by the isolated jump upshift of closing of 1 gear to 3
The time of gear is 1.72s.
It is illustrated in figure 2 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch of 1 gear
The fault tolerant control method of 1 grade of failure occurs for device start motor.If the corresponding clutch start motor of 1 gear proceeds in shift process
1 grade of failure occurs for (shift process torque phase stage) during 0.357s, then stops giving motor power supply at once, due to for clutch open in usual
Device, after clutch start motor stops powering, occur electrical fault the 1 corresponding clutch of gear can quick separating, at this time for
Ensure that vehicle shock extent is minimum, the 2 of electrical fault does not occur and keeps off corresponding clutch according to revised rules of engagement after continued access
It closes, when electrical fault occurs 1 keeps off corresponding clutch after 75ms is completely disengaged, into the inertia phase stage, adjusting is started
Machine rotating speed is consistent up to clutch driven plate rotating speed corresponding with 2 gears that electrical fault does not occur, during engine governed speed,
For the purposes of ensureing that vehicle shock extent is minimum, the corresponding clutch transmission torque of 2 gears need to be kept constant, after synchronization rapidly
The corresponding clutch of 2 gears that electrical fault does not occur is compacted to maximum displacement and motor torque is switched into operator demand
Value, into 2 gear stable operations, it is 617ms to be out of order from diagnosis to the time undergone into 2 gear stable operations.
It is illustrated in figure 3 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch of 1 gear
The fault tolerant control method of 2 grades of failures occurs for device start motor.If the corresponding clutch start motor of 1 gear proceeds in shift process
2 grades of failures occur for (shift process torque phase stage) during 0.357s, it is contemplated that shorten the working time of faulty motor as possible, keep away
Exempt from failure aggravation, so the corresponding clutch of 1 gear of electrical fault occurs according to the bang- using the time as optimal performance index
The law of segregation separation that bang control decisions go out, at this time to ensure that vehicle shock extent is minimum, 2 gears that electrical fault does not occur correspond to
Clutch continue to engage according to revised rules of engagement, when occur electrical fault from clutch by 91ms it is completely disengaged
Afterwards, into the inertia phase stage, engine speed is adjusted until turning with the corresponding clutch driven plate of 2 gear that electrical fault does not occur
It is fast consistent, during engine governed speed, it for the purposes of ensureing that vehicle shock extent is minimum, need to keep that the 2 of electrical fault does not occur
Keep off the corresponding clutch pressure of 2 gears that corresponding clutch transmission torque is constant, electrical fault will not occur rapidly after synchronization
Tightly switch to operator demand's value to maximum displacement and by motor torque, into 2 gear stable operations, from diagnosis be out of order into
It is 642ms to enter the time that 2 gear stable operations are undergone.
Under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch start motor hair of 1 gear
The time for rising up into 2 gears after raw 2 grades of failures is longer 25ms than the time that 2 gears are risen up into after 1 grade of failure of generation.
It is illustrated in figure 4 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch of 2 gears
The faults-tolerant control of 1 grade of failure occurs for device start motor.If the corresponding clutch start motor of 2 gears proceeds in shift process
1 grade of failure occurs for (shift process torque phase stage) during 0.384s, then stops giving motor power supply at once, due to for clutch open in usual
Device, after clutch start motor stops powering, occur electrical fault the 2 corresponding clutches of gear can quick separating, at this time for
Ensure that vehicle shock extent is minimum, the corresponding separation clutch of 1 gear of electrical fault does not occur according to 2 gears with electrical fault occurs
The rules of engagement of corresponding clutch separation speed proportion relation is re-engaged, when 2 gears pair that electrical fault occurs
The clutch answered, into the inertia phase stage, adjusts engine speed until with motor event does not occur after 104ms is completely disengaged
The corresponding clutch driven plate rotating speed of 1 gear of barrier is consistent, during engine governed speed, for the purposes of ensureing vehicle shock extent most
It is small, the corresponding clutch transmission torque of 1 gear that electrical fault does not occur need to be kept constant, will not occurred rapidly after synchronization
The corresponding clutch of 1 gear of electrical fault is compacted to maximum displacement and motor torque is switched to operator demand's value, again
Into 1 gear stable operation, it is 298ms to be out of order from diagnosis to the time that low gear stable operation undergone is reentered.
It is illustrated in figure 5 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch of 2 gears
Fault tolerant control method after 2 grades of failures occurs for device start motor.If the corresponding clutch start motor of 2 gears is carried out in shift process
2 grades of failures occur to (shift process torque phase stage) during 0.384s, it is contemplated that shorten the time of faulty motor work as possible,
Failure is avoided to aggravate, so the corresponding clutch of 2 gears of electrical fault occurs according to the bang- using the time as optimal performance index
The law of segregation separation that bang control decisions go out, at this time to ensure that vehicle shock extent is minimum, 1 gear that electrical fault does not occur corresponds to
Separation clutch according to the corresponding clutch separation speed proportion relation of 2 gears with electrical fault occurs engagement rule
Rule is re-engaged, when 2 corresponding clutches of gear of electrical fault occur after 125ms is completely disengaged, into the inertia phase stage,
Adjusting engine speed is consistent up to clutch driven plate rotating speed corresponding with 1 gear that electrical fault does not occur, in engine tune
During speed, for the purposes of ensureing that vehicle shock extent is minimum, the corresponding clutch of 1 gear that electrical fault does not occur need to be kept to transmit
Torque is constant, and the corresponding clutch of 1 gear that electrical fault does not occur is compacted to maximum displacement rapidly after synchronization and will be sent out
Motivation torque switches to operator demand's value, reenters 1 gear stable operation, from diagnosis be out of order to reenter 1 gear stablize
Operation the undergone time is 315ms.
Under 30% accelerator pedal aperture, 1 gear rose for 2 gear process torque phase stages, the corresponding clutch start motor hair of 2 gears
Again the time that 1 gear is retracted after raw 2 grades of failures is longer 17ms than the time for retracting 1 gear after 1 grade of failure of generation again.
It is illustrated in figure 6 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process inertia phase stages, the corresponding clutch of 2 gears
The fault tolerant control method of 1 grade of failure occurs for device start motor.If the corresponding clutch start motor of 2 gears proceeds in shift process
1 grade of failure occurs for (shift process inertia phase stage) during 0.874s, then stops giving motor power supply at once, due to for clutch open in usual
Device after clutch start motor stops powering, occurs the corresponding clutch meeting quick separating of 2 gears of electrical fault, passes through
The corresponding clutch of 2 gears that electrical fault occurs after 92ms is kept completely separate, in the corresponding clutch point of 2 gears that electrical fault occurs
From while, adjust engine speed until be kept completely separate at this time the 1 corresponding clutch of gear of electrical fault does not occur
Driven disk rotating speed is consistent, when the corresponding clutch of 2 gears that electrical fault occurs is completely disengaged and the 1 of electrical fault gear pair does not occur
After clutch principal and subordinate's Moving plate rotating speed for answering is consistent, the corresponding clutch of 1 gear that electrical fault is kept completely separate at this time will not occur and think highly of
It is new to engage and be compacted to maximum displacement rapidly and motor torque is switched into operator demand's value, it reenters 1 gear and stablizes fortune
Row, it is 569ms to be out of order from diagnosis to the time that 1 gear stable operation undergone is reentered.
It is illustrated in figure 7 under 30% accelerator pedal aperture, 1 gear rose for 2 gear process inertia phase stages, the corresponding clutch of 2 gears
The fault tolerant control method of 2 grades of failures occurs for device start motor.If the corresponding clutch start motor of 2 gears proceeds in shift process
2 grades of failures occur for (shift process inertia phase stage) during 0.874s, it is contemplated that shorten the time of faulty motor work as possible, keep away
Exempt from failure aggravation, so the corresponding clutch of 2 gears of electrical fault occurs according to the bang- using the time as optimal performance index
The law of segregation separation that bang control decisions go out, the corresponding clutch of 2 gears of the generation electrical fault divides completely after 163ms
From while keeping off corresponding clutch separation in 2 that electrical fault occurs, adjusting engine speed is not until with motor event occurs
Be kept completely separate at this time the 1 corresponding clutch driven plate rotating speed of gear of barrier is consistent, when 2 gears that electrical fault occurs it is corresponding from
Clutch it is completely disengaged it is consistent with the 1 corresponding clutch principal and subordinate Moving plate rotating speed of gear that electrical fault does not occur after, motor will not occur
The corresponding clutch of 1 gear that failure is kept completely separate at this time is re-engaged and is compacted to maximum displacement rapidly and cuts motor torque
Operator demand's value is shifted to, reenters 1 gear stable operation, is out of order to reentering 1 gear stable operation and is undergone from diagnosis
Time be 597ms.
Under 30% accelerator pedal aperture, 1 gear rose for 2 gear process inertia phase stages, the corresponding clutch start motor hair of 2 gears
Again the time that 1 gear is retracted after raw 2 grades of failures is longer 28ms than the time for retracting 1 gear after 1 grade of failure of generation again.
The above embodiments merely illustrate the technical concept and features of the present invention, and its object is to allow person skilled in the art
Present disclosure can be understood and implemented according to this, it is not intended to limit the scope of the present invention.It is all main according to the present invention
The failure tolerant of the modification that the Spirit Essence of technical solution is wanted to be done, such as six Quick-drying type DCT downshift process clutch start motors
Control method should be covered by the protection scope of the present invention.
Claims (10)
1. a kind of six Quick-drying type DCT upshift process clutch start electrical fault fault tolerant control methods, in torque phase and used
Property the phase stage faults-tolerant control is carried out to the possible breakdown of clutch start motor, which is characterized in that
The possible breakdown operating mode of the clutch start motor includes：
Fault condition 1：Upshift instruction is received when keeping off stable operation, high gear clutch start motor breaks down at this time；
Fault condition 2：Upshift process torque phase stage separation clutch start motor breaks down；
Fault condition 3：Upshift process torque phase stage engagement clutch start motor breaks down；
Fault condition 4：Upshift process inertia phase stage engagement clutch start motor breaks down.
2. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 1
Method, which is characterized in that when the possible breakdown operating mode of clutch start motor is fault condition 1, using electrical fault does not occur
Clutch complete single clutch jump upshift.
3. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 2
Method, which is characterized in that the single clutch jump upshift specifically includes following steps：
The corresponding clutch separation of low gear that first electrical fault will not occur, divides completely in the clutch that electrical fault does not occur
From rear, control synchronizer completion plucks gear, eliminates idle stroke and operation of putting into gear, and after the completion of putting into gear, controls and electrical fault does not occur
Clutch engagement, while adjust engine speed, be allowed to the clutch driven plate synchronization with electrical fault does not occur, when
After synchronization, the clutch that electrical fault does not occur is compacted to maximum displacement, while motor torque is switched to driving
Member's requirements complete single clutch jump upshift.
4. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 1
Method, which is characterized in that when the possible breakdown operating mode of clutch start motor is fault condition 2, according to separation clutch start
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the different grades of failure of motor.
5. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 4
Method, which is characterized in that it is described according to the separation different grades of failure of clutch start motor, with the minimum mesh of vehicle shock extent
, using corresponding method complete control action the specific steps are：
If the fault level for detaching clutch start motor is 1, stops motor power supply at once, the engagement of electrical fault does not occur
Clutch continues to engage according to revised rules of engagement, after the clutch that electrical fault occurs is completely disengaged, into inertia
The phase stage adjusts engine speed up to consistent with the clutch driven plate rotating speed of electrical fault does not occur, in engine governed speed
During, it keeps the engagement clutch transmission torque that electrical fault does not occur constant, will not occur rapidly after synchronization
The clutch of electrical fault is compacted to maximum displacement and motor torque is switched to operator demand's value, stablizes into high gear and transports
Row；
If the clutch of electrical fault for 2, will occur for the fault level of separation clutch start motor according to using the time to be optimal
The engagement clutch of electrical fault does not occur for the separation of law of segregation that the bang-bang control decisions of performance indicator go out according to repairing
Rules of engagement after just continues to engage, and after the clutch that electrical fault occurs is completely disengaged, into the inertia phase stage, adjusts hair
Motivation rotating speed is up to consistent with the clutch driven plate rotating speed of electrical fault does not occur, during engine governed speed, keeps
The engagement clutch transmission torque that electrical fault does not occur is constant, the clutch that electrical fault will not occur rapidly after synchronization
It is compacted to maximum displacement and motor torque is switched into operator demand's value, into high gear stable operation；
If the fault level for detaching clutch start motor is 3, the control in upshift process torque phase stage originally formulated is followed
Method processed completes upshift.
6. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 1
Method, which is characterized in that when the possible breakdown operating mode of clutch start motor is fault condition 3, according to separation clutch start
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the different grades of failure of motor.
7. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 6
Method, which is characterized in that it is described according to the separation different grades of failure of clutch start motor, with the minimum mesh of vehicle shock extent
, using corresponding method complete control action the specific steps are：
If the fault level for engaging clutch start motor is 1, stop motor power supply at once, point of electrical fault will not occur
Luxuriant clutch is re-engaged according to the rules of engagement of the clutch separation speed proportion relation with electrical fault occurs, when
Occur electrical fault clutch it is completely disengaged after, into the inertia phase stage, adjust engine speed until with motor does not occur
The clutch driven plate rotating speed being re-engaged of failure is consistent, during engine governed speed, keeps the clutch being re-engaged
Device transmission torque is constant, and the clutch that electrical fault does not occur is compacted to maximum displacement rapidly after synchronization and will be started
Machine torque switches to operator demand's value, reenters low gear stable operation；
If the clutch of electrical fault for 2, will occur for the fault level of engagement clutch start motor according to using the time to be optimal
The law of segregation separation that the bang-bang control decisions of performance indicator go out, at this time to ensure that vehicle shock extent is minimum, electricity does not occur
Machine failure detaches rules of engagement of the clutch according to the clutch separation speed proportion relation with electrical fault occurs
Be re-engaged, after the clutch that electrical fault occurs is completely disengaged, into the inertia phase stage, adjust engine speed until with
The clutch driven plate rotating speed being re-engaged that electrical fault does not occur is consistent, during engine governed speed, keeps again
The clutch transmission torque of engagement is constant, and the clutch that electrical fault does not occur is compacted to maximum displacement rapidly after synchronization
And motor torque is switched into operator demand's value, reenter low gear stable operation；
If the fault level for engaging clutch start motor is 3, the control in upshift process torque phase stage originally formulated is followed
Method processed completes upshift.
8. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 1
Method, which is characterized in that when the possible breakdown operating mode of clutch start motor is fault condition 4, according to separation clutch start
For the purpose of vehicle shock extent minimum, control action is completed using corresponding method for the different grades of failure of motor.
9. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 8
Method, which is characterized in that it is described according to the separation different grades of failure of clutch start motor, with the minimum mesh of vehicle shock extent
, using corresponding method complete control action the specific steps are：
If the fault level for engaging clutch start motor is 1, stop motor power supply at once, in the clutch that electrical fault occurs
During device detaches, engine speed is adjusted until turning with the clutch driven plate that electrical fault does not occur and has been kept completely separate
It is fast consistent, it is completely disengaged consistent with clutch principal and subordinate's Moving plate rotating speed that electrical fault does not occur in the clutch that electrical fault occurs
Afterwards, the clutch that electrical fault does not occur and has been kept completely separate is re-engaged and is compacted to maximum displacement rapidly and by engine
Torque switches to operator demand's value, reenters low gear stable operation；
If the clutch of electrical fault for 2, will occur for the fault level of engagement clutch start motor according to using the time to be optimal
The law of segregation separation that the bang-bang of performance indicator is controlled, during the clutch separation that electrical fault occurs,
Engine speed is adjusted up to consistent with the clutch driven plate rotating speed that electrical fault does not occur and has been kept completely separate, it is electric when occurring
The clutch of machine failure it is completely disengaged it is consistent with clutch principal and subordinate's Moving plate rotating speed that electrical fault does not occur after, motor will not occur
The clutch that failure is kept completely separate at this time is re-engaged and is compacted to maximum displacement rapidly and motor torque is switched to driving
Member's requirements, reenter low gear stable operation；
If the fault level for engaging clutch start motor is 3, the control in upshift process inertia phase stage originally formulated is followed
Method processed completes upshift.
10. a kind of six Quick-drying types DCT upshifts process clutch start electrical fault faults-tolerant control side according to claim 7
Method, which is characterized in that the rules of engagement of the certain proportion relationship is：
Wherein,Transmission torque rate of change for the separation clutch that electrical fault does not occur,For point of electrical fault occurs
The transmission torque rate of change of luxuriant clutch, i1The corresponding gearbox-gear transmission of separation clutch for electrical fault does not occur
Than i2For the corresponding gearbox-gear gearratio of separation clutch of electrical fault occurs.
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| CN201711204232.9A CN108150642B (en) | 2017-11-27 | 2017-11-27 | Six Quick-drying type DCT upshift process clutch actuation electrical fault fault tolerant control methods |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107214A1 (en) * | 2003-11-17 | 2005-05-19 | Melissa Koenig | Method for controlling a dual clutch transmission |
| CN102822555A (en) * | 2010-04-01 | 2012-12-12 | 舍弗勒技术股份两合公司 | Method for operating a double clutch |
| US20130274062A1 (en) * | 2010-12-15 | 2013-10-17 | Yamaha Hatsudoki Kabushiki Kaisha | Control device for dual clutch transmission and control method for dual clutch transmission |
| CN106438990A (en) * | 2015-08-03 | 2017-02-22 | Avl里斯脱有限公司 | Method for control vehicle drive unit |
-
2017
- 2017-11-27 CN CN201711204232.9A patent/CN108150642B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050107214A1 (en) * | 2003-11-17 | 2005-05-19 | Melissa Koenig | Method for controlling a dual clutch transmission |
| CN102822555A (en) * | 2010-04-01 | 2012-12-12 | 舍弗勒技术股份两合公司 | Method for operating a double clutch |
| US20130274062A1 (en) * | 2010-12-15 | 2013-10-17 | Yamaha Hatsudoki Kabushiki Kaisha | Control device for dual clutch transmission and control method for dual clutch transmission |
| CN106438990A (en) * | 2015-08-03 | 2017-02-22 | Avl里斯脱有限公司 | Method for control vehicle drive unit |
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