CN108626271A - A kind of clutch control method and device of double-clutch speed changer - Google Patents
A kind of clutch control method and device of double-clutch speed changer Download PDFInfo
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- CN108626271A CN108626271A CN201710170180.1A CN201710170180A CN108626271A CN 108626271 A CN108626271 A CN 108626271A CN 201710170180 A CN201710170180 A CN 201710170180A CN 108626271 A CN108626271 A CN 108626271A
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- Prior art keywords
- clutch
- double
- speed changer
- block failure
- default
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Classifications
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D48/00—External control of clutches
- F16D48/06—Control by electric or electronic means, e.g. of fluid pressure
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/104—Clutch
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/10—System to be controlled
- F16D2500/11—Application
- F16D2500/1107—Vehicles
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/507—Relating the vehicle
-
- 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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2500/00—External control of clutches by electric or electronic means
- F16D2500/50—Problem to be solved by the control system
- F16D2500/51—Relating safety
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
A kind of clutch control method and device of double-clutch speed changer, the method includes：The first clutch detected in the double-clutch speed changer whether there is catching phenomenon, and the first clutch is the clutch for being currently at bonding state；When detecting the first clutch, there are when catching phenomenon, determine the first clutch with the presence or absence of Block failure；When determining the first clutch, there are shift forks when Block failure, controlled in the first clutch respective shaft to be disengaged to middle position, and controls second clutch combination, to continue to output power.Said program can improve the safety of vehicle traveling in clutch grab.
Description
Technical field
The present invention relates to double-clutch speed changer technical field more particularly to a kind of clutch control sides of double-clutch speed changer
Method and device.
Background technology
Double-clutch speed changer (Dual Clutch Transmission, DCT) possess manual transmission flexibility and
The comfort of automatic transmission, and unremitting power output can also be provided.Double-clutch speed changer has been widely used in one
In a little high-end vehicles.
In vehicle travel process, in shift it is possible that the case where clutch grab.When clutch grab, can lead
Cause can not interrupt power transmission in time, cause shift shock, influence the comfort driven.When there is clamping stagnation in clutch, for example,
Odd number clutch grab, if driver shifts gears at this time, when control even number clutch combines, it is possible that odd number clutch
With even number clutch in combination with the case where.
In the prior art, when two clutches in combination with when, two clutches are opened, to by odd number axis and idol
Shift fork on number axis retracts vacancy, to cut off clutch power transmission.Vehicle can be caused long however, opening simultaneously two clutches
Time is in non-power state, seriously affects the safety of vehicle traveling.
Invention content
Present invention solves the technical problem that being to improve the safety of vehicle traveling in clutch grab.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of clutch control method of double-clutch speed changer,
Including：The first clutch detected in the double-clutch speed changer whether there is catching phenomenon, and the first clutch is current
Clutch in bonding state；When detecting that the first clutch there are when catching phenomenon, determines the first clutch
With the presence or absence of Block failure；When determining the first clutch, there are when Block failure, control the first clutch respective shaft
On shift fork be disengaged to middle position, and control second clutch combination, to continue to output power.
Optionally, the detection first clutch whether there is catching phenomenon, including：Receive the torsion of driver's input
Square requirement command calculates clutch target torque requirements corresponding with torque demand instruction；Obtain first clutch
The actual transfer torque value of device；It is preset when the difference of the actual transfer torque value and the clutch target torque requirements is more than
When the duration of first threshold is more than default first duration, judge that there are catching phenomena for the first clutch.
Optionally, when determining that the first clutch there are after Block failure, further includes：Moment of torsion control is sent to engine
Instruction controls the engine and switches to default first output torque value by current output torque value, and the current output is turned round
Square value is more than the first output torque value.
Optionally, after controlling the second clutch and combining, further include：Torque is sent to the engine to refer to
Enable, control the engine output torque from the first output torque value revert to switching before engine output torque
Value.
Optionally, the determination first clutch whether there is Block failure, including：According to preset detection cycle
Motion control instruction is sent to the first clutch, to control the first clutch in default first position and default second
It is moved back and forth between position；In each detection cycle, the displacement of the first clutch is detected in real time；When detect such as down toward
When a kind of few situation, there are Block failures for the first clutch within the current detection period for judgement：The first clutch
Position can not be reached in preset second duration the default first position, the first clutch position preset
The duration that the default second position can not be reached in three durations reaches default third duration, the first position be it is described it is double from
The distance between driving disc spacing pressing and the driven disc that close speed changer are more than the position of default first distance, and the second position is described
The distance between driving disc spacing pressing and driven disc of double-clutch speed changer are less than the position of default second distance, and first distance is big
In the second distance.
Optionally, the clutch control method of the double-clutch speed changer further includes：In this driving procedure, remember in real time
Record judges the first clutch, and there are the numbers of Block failure；When detecting the judgement first clutch, there are Block failures
Number when reaching preset first number, stop sending motion control instruction to the first clutch；First number
More than 2.
Optionally, it after detecting that the first clutch reaches preset times there are the number of Block failure, also wraps
It includes：It generates clutch grab error code and preserves.
Optionally, the clutch control method of the double-clutch speed changer further includes：When vehicle powers on, judge whether to deposit
In the clutch grab error code；When there are the clutch grab error code, determine whether the first clutch is deposited
In Block failure；When there are shift forks when Block failure, controlled in the first clutch respective shaft to take off for the first clutch
From extremely middle position, and second clutch combination is controlled, to continue to output power.
Optionally, the determination first clutch whether there is Block failure, including：According to preset detection cycle
Motion control instruction is sent to the first clutch, to control the first clutch in default first position and default second
It is moved back and forth between position；In each detection cycle, the displacement of the first clutch is detected in real time；When detect such as down toward
When a kind of few situation, there are Block failures for the first clutch within the current detection period for judgement：The first clutch
Position can not be reached in preset second duration the default first position, the first clutch position preset
The duration that the default second position can not be reached in three durations reaches default third duration, the first position be it is described it is double from
The distance between driving disc spacing pressing and the driven disc that close speed changer are more than the position of default first distance, and the second position is described
The distance between driving disc spacing pressing and driven disc of double-clutch speed changer are less than the position of default second distance, and first distance is big
In the second distance.
Optionally, the clutch control method of the double-clutch speed changer further includes：Within the current detection period, detection
It can reach the first position and the second position to the position of the first clutch, judge in the current detection period
Block failure is not present in the interior first clutch.
Optionally, the clutch control method of the double-clutch speed changer further includes：It is recorded in real time at this driving procedure
The number of Block failure is not present in the middle judgement first clutch；When detecting the judgement first clutch, there is no clamping stagnations
When the number of failure reaches default second number, the shift fork controlled in the second clutch respective shaft is disengaged to middle position, and controls
It makes the first clutch to combine, to continue to output power；Second number is more than 1.
Optionally, after judging that the first clutch reaches default second number there is no the number of Block failure,
Further include：Removing the judgement first clutch, there are the numbers of Block failure, and judge first clutch by described
There are the numbers of Block failure to be sent to ECU for device.
The embodiment of the present invention additionally provides a kind of clutch controller of double-clutch speed changer, including：Detection unit is used
It whether there is catching phenomenon in detecting the first clutch in the double-clutch speed changer, the first clutch is to be currently at
The clutch of bonding state；Block failure determination unit detects that the first clutch exists for working as the detection unit
When catching phenomenon, determine that the first clutch whether there is Block failure；First control unit, for when determining described first
Clutch is disengaged to middle position there are shift fork when Block failure, controlled in the first clutch respective shaft, and control second from
Clutch combines, to continue to output power.
Optionally, the detection unit, the torque demand instruction for receiving driver's input, calculating needs with the torque
Seek the corresponding clutch target torque requirements of instruction；Obtain the actual transfer torque value of the first clutch；When the reality
Torque value is transmitted on border and the difference of the clutch target torque requirements is more than the duration of preset first threshold value more than default first
When duration, judge that there are catching phenomena for the first clutch.
Optionally, the clutch controller of the double-clutch speed changer further includes：First transmission unit, for described
After Block failure determination unit determines the first clutch there are Block failure, moment of torsion control instruction, control are sent to engine
It makes the engine and default first output torque value is switched to by current output torque value, and the current output torque value is more than
The first output torque value.
Optionally, the clutch controller of the double-clutch speed changer further includes：Second transmission unit, for described
After first control unit controls the second clutch combination, sends torque to the engine and restore to instruct, described in control
Engine output torque reverts to the engine output torque value before switching from the first output torque value.
Optionally, the Block failure determination unit, for being sent out to the first clutch according to preset detection cycle
Motion control instruction is sent, is moved back and forth between default first position and the default second position with controlling the first clutch；
In each detection cycle, the displacement of the first clutch is detected in real time；When detecting following at least one situation, judgement
There are Block failures for the first clutch within the current detection period：The position of the first clutch is at preset second
The default first position can not be reached in length, the position of the first clutch can not reach institute in preset third duration
The duration for stating the default second position reaches default third duration, the first position be the double-clutch speed changer driving disc spacing pressing with
The distance between driven disc is more than the position of default first distance, and the second position is the active of the double-clutch speed changer
The distance between disk and driven disc are less than the position of default second distance, and first distance is more than the second distance.
Optionally, the clutch controller of the double-clutch speed changer further includes：First recording unit, at this
In driving procedure, there are the numbers of Block failure for the first clutch of record judgement in real time；Second control unit, for when inspection
When measuring the judgement first clutch and reaching preset first number there are the number of Block failure, stop to described first from
Clutch sends motion control instruction；First number is more than 2.
Optionally, the clutch controller of the double-clutch speed changer further includes：Block failure code generation unit, is used for
Generate clutch grab error code；Storage unit, for preserving the clutch grab error code.
Optionally, the clutch controller of the double-clutch speed changer further includes：Judging unit, for being powered in vehicle
When, judge whether the clutch grab error code；The Block failure determination unit is additionally operable to when there are the clutches
When device Block failure code, determine that the first clutch whether there is Block failure.
Optionally, the Block failure determination unit, is additionally operable to when in a detection cycle, detect described first from
The position of clutch can reach the first position and the second position, judgement within the current detection period described first from
Block failure is not present in clutch.
Optionally, the clutch controller of the double-clutch speed changer further includes：Second recording unit, for remembering in real time
Record judges that the number of Block failure is not present in the first clutch in this driving procedure；First control unit, also
For when detect judge that the first clutch reaches default second number there is no the number of Block failure when, described in control
Shift fork in second clutch respective shaft is disengaged to middle position, and controls the first clutch and combine, to continue to output power；Institute
It states second number and is more than 1.
Optionally, the clutch controller of the double-clutch speed changer further includes：Clearing cell is sentenced for that ought detect
When the fixed first clutch reaches default second number there is no the number of Block failure, remove it is described judge described first from
There are the numbers of Block failure for clutch；Third transmission unit, be additionally operable to the judgement first clutch there are clamping stagnation therefore
The number of barrier is sent to ECU.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
When determining the first clutch for being currently at bonding state in double-clutch speed changer there are when Block failure, control
Shift fork in first clutch respective shaft is disengaged to middle position, and control second clutch combine to continue to output power, to avoid
Power output is interrupted, so as to avoid because first clutch is there are when clamping stagnation, because second clutch in conjunction with due to lead to two
Clutch in combination with the case where occur, and then non-power state can be in for a long time to avoid vehicle, therefore vehicle can be improved
The safety of traveling.
Further, when determining first clutch there are after Block failure, engine output torque value is reduced, in order to will
There are the shift fork disengagings in the first clutch respective shaft of Block failure.
Further, in this driving procedure, when it is multiple determine that Block failure is not present in first clutch when, just judge the
One clutch can work normally, and occur to avoid because of the case where judging by accident, can further improve the safety of vehicle traveling.
In addition, by the first clutch occurred in this driving procedure, there are the total degrees of Block failure to be sent to ECU, with
Just maintenance personal knows that the number of clamping stagnation occurs in first clutch, can improve the investigation efficiency of wrong operation of motor.
Description of the drawings
Fig. 1 is a kind of flow chart of the clutch control method of double-clutch speed changer in the embodiment of the present invention；
Fig. 2 is a kind of structural schematic diagram of the clutch controller of double-clutch speed changer in the embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the clutch controller of another double-clutch speed changer in the embodiment of the present invention.
Specific implementation mode
In vehicle travel process, in shift it is possible that the case where clutch grab.When clutch grab, example
Such as, odd number clutch grab, if driver shifts gears at this time, control even number clutch combine when, it is possible that odd number from
Clutch and even number clutch in combination with the case where.When two clutches in combination with when, while two clutches being opened, from
And the shift fork on odd number axis and even number axis is retracted into vacancy, to cut off clutch power transmission, and two clutches is maintained to open
State until this driving procedure terminate.
However, after opening two clutches at the same time, vehicle may be in non-power state for a long time.If vehicle exists
Occur long-time non-power state in driving process, then may result in the feelings for the safety for seriously affecting vehicle traveling such as knock into the back
Condition occurs.
In embodiments of the present invention, when determining that the first clutch for being currently at bonding state in double-clutch speed changer deposits
In Block failure, control first clutch respective shaft on shift fork be disengaged to middle position, and control second clutch combine with after
Continuous output power, is interrupted to avoid power output, so as to avoid because first clutch is there are when clamping stagnation, second clutch
In conjunction with cause two clutches in combination with the case where occur, and then can to avoid vehicle for a long time be in non-power state, therefore
The safety of vehicle traveling can be improved.
It is understandable to enable above-mentioned purpose, feature and the advantageous effect of the present invention to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
An embodiment of the present invention provides a kind of clutch control methods of double-clutch speed changer, referring to Fig.1, below by way of tool
Body step is described in detail.
Step S101, the first clutch detected in the double-clutch speed changer whether there is catching phenomenon.
In practical applications, for double-clutch speed changer, in vehicle travel process, at one of clutch
In bonding state, another clutch is in pre- bonding state.In specific implementation, it can detect in double-clutch speed changer in real time
The clutch in bonding state whether there is catching phenomenon.
In embodiments of the present invention, for convenience of description, first clutch is set as the clutch in bonding state, is set
Second clutch is the clutch in pre- bonding state.
For example, in vehicle travel process, vehicle current gear is 3 grades, then the odd number clutch in double-clutch speed changer
In bonding state, even number clutch is in pre- bonding state.At this point it is possible to odd number clutch is set as first clutch,
Even number clutch is set as second clutch, and detection odd number clutch whether there is catching phenomenon in real time.
For another example, vehicle current gear is 4 grades, then the even number clutch in double-clutch speed changer is in bonding state, odd number
Clutch is in pre- bonding state.At this point it is possible to which even number clutch is set as first clutch, even number clutch is set as
Second clutch, and detection odd number clutch whether there is catching phenomenon in real time.
In specific implementation, when detecting driver's step on the accelerator, it is possible to determine that receive driver's input
Torque demand instructs.In the torque demand instruction for receiving driver's input, can calculate corresponding with torque demand instruction
Clutch target torque requirements.
After calculating clutch target torque requirements, the actual transfer torque value of first clutch can be obtained,
Namely the torque of first clutch engine output when being in bonding state.By actual torque delivery value and clutch target torque
Requirements subtract each other, when the difference between the two is all higher than preset first threshold value in default first duration, it is possible to determine that first clutch
There are catching phenomena.
In specific implementation, the first duration and first threshold can be according to actual application scenarios sets itselfs.
In one embodiment of the invention, first when a length of 400ms, first threshold is 30 Newton meters (Nm).In other embodiments of the present invention,
First duration and first threshold may be other values, be not repeated herein.
In embodiments of the present invention, after judgement first clutch is there are catching phenomenon, it is understood that there may be the following two kinds situation：
1) first clutch is stuck, can not work normally；2) there are slight catching phenomena for wrong report or first clutch, but not right
The working condition of first clutch has an impact.Therefore, after judgement first clutch is there are catching phenomenon, step can be executed
Rapid S102；When detecting that catching phenomenon is not present in the first clutch in double-clutch speed changer, then step can be continued to execute
S101, namely continue to detect first clutch with the presence or absence of catching phenomenon.
Step S102 determines that the first clutch whether there is Block failure.
In specific implementation, after detecting first clutch there are catching phenomenon, first clutch can be first determined
With the presence or absence of Block failure, first clutch is caused to can not work normally.
In specific implementation, after detecting first clutch there are catching phenomenon, can with preset detection cycle,
Periodically motion control instruction is sent to first clutch.First clutch, can be with after receiving motion control instruction
It is moved back and forth between preset first position and the second position, wherein：First position be double-clutch speed changer driving disc spacing pressing with
The distance between driven disc is more than first apart from corresponding position, and the second position is the driving disc spacing pressing and driven disc of double-clutch speed changer
The distance between be less than the corresponding position of second distance, and first distance be more than second distance.
In embodiments of the present invention, first position can be：Using the driving disc spacing pressing of double clutch as origin, when driven disc and master
The distance of Moving plate is equal to S1The corresponding position of product between default first coefficient, S1Driven disc for double clutch and active
Maximum distance between disk, the first coefficient can be configured according to actual needs.In embodiments of the present invention, the first coefficient can
Think 80%~95%.
In embodiments of the present invention, the second position can be：Using the driving disc spacing pressing of double clutch as origin, when driven disc and master
The distance between Moving plate is equal to S1The corresponding position of product between default second coefficient, the second coefficient can be according to practical need
It is configured, and the second coefficient is less than the first coefficient.In embodiments of the present invention, the second coefficient can be 5%~20%.
It is understood that the first coefficient can be set with the second coefficient according to actual demand, it is not limited in
The numerical value provided in the above embodiment of the present invention.
In each detection cycle, the displacement of first clutch can be detected in real time.In a detection cycle, detection
When being unable to reach first position in default second duration to the position of first clutch, it is possible to determine that first clutch has card
Stagnant failure.In a detection cycle, detect that the position of first clutch is unable to reach second in default third duration
When position, it can also judge that there are Block failures for first clutch.
That is, in each detection cycle, it can be determined that first clutch is during moving back and forth, if energy
Enough reach first position, and judges whether the position of first clutch can reach the second position.If in a detection cycle
Interior, first clutch is unable to reach first position or first clutch in the mistake moved back and forth during moving back and forth
When being unable to reach the second position in journey, you can there are Block failures for judgement first clutch.Correspondingly, if in a detection cycle
It is interior, when first clutch is unable to reach first position during moving back and forth and is unable to reach the second position, it can also sentence
Determining first clutch, there are Block failures.
Above-mentioned judgement first clutch is with the presence or absence of the principle of Block failure：When first clutch is completely stuck,
When control first clutch moves back and forth, since first clutch may be completely stuck, first clutch is possibly can not
It is mobile, therefore first clutch can not move to the second position in a detection cycle from first position.Therefore, when first from
Clutch can not be in a detection cycle, when moving to the second position from first position, you can judgement first clutch has card
Stagnant failure.
Step S103, when determining the first clutch, there are when Block failure, control the first clutch respective shaft
On shift fork be disengaged to middle position, and control second clutch combination, to continue to output power.
In specific implementation, when determining first clutch, there are after Block failure, you can judgement first clutch is current
It may can not work normally.For ensure vehicle can normally travel, can be sent to first clutch and be detached from control instruction, to the
Two clutches, which are sent, combines control instruction.Shift fork in respective shaft is disengaged to by first clutch after receiving control instruction
Middle position is switched to pre- bonding state from bonding state.Second clutch is after receiving in conjunction with control instruction, from advance in conjunction with shape
State is switched to bonding state.At this point, engine can continue through second clutch output torque, so as to drive vehicle after
It continues and sails.
In the prior art, when first clutch is there are when Block failure, if driver switches gear at this time, it is possible to meeting
The case where causing first clutch to be combined with second clutch.When there is the above situation, control first clutch with
Second clutch is detached from, until starting vehicle next time.At this point, vehicle may be in non-power state for a long time, it may
The case where the seriously affecting the safety of vehicle traveling such as can cause to knock into the back occurs.
And in embodiments of the present invention, when determining the first clutch for being currently at bonding state in double-clutch speed changer
There are when Block failure, the shift fork controlled in first clutch respective shaft is disengaged to middle position, and control second clutch combine with
Power is continued to output, is interrupted to avoid power output, so as to avoid because first clutch is there are when clamping stagnation, second clutch
Combination cause two clutches in combination with the case where occur, and then can to avoid vehicle for a long time be in non-power state,
Therefore the safety of vehicle traveling can be improved.
In specific implementation, when determining first clutch, there are after Block failure, be quickly and easily by first clutch
It is detached from, moment of torsion control instruction can be sent to engine.Engine, can be by output torque after receiving moment of torsion control instruction
Value is switched to default first output torque value from current output torque value, and current output torque value is more than the first output torque
Value.
That is, reducing current output there are when Block failure, can first control engine when determining first clutch
Torque value, so that first clutch can rapidly switch from bonding state.
After second clutch combination, torque can be sent to engine and restore instruction.Engine is receiving torque
After restoring instruction, output torque value can be reverted to the output torque value before switching, to guarantee to meet driver's
Drive demand.
For example, engine current output torque value is A.After determining first clutch there are Block failure, to engine
Moment of torsion control instruction is sent, control engine current output torque value is reduced to B, A ＞ B from A.After second clutch combination,
Torque is sent to engine and restores instruction, and the output torque for controlling engine reverts to A again from B.
In practical applications, first clutch may be simply due to mechanical breakdown, it is possible that card within certain a period of time
Stagnant failure., may be after there are Block failure with the traveling of vehicle, and restore normal.Therefore, in the embodiment of the present invention
In, it can determine that first clutch whether there is Block failure in multiple detection cycles, in this driving procedure with this
To determine number of the first clutch there are Block failure.
From in the above embodiment of the present invention it is found that after determining the first clutch there are catching phenomenon, can be according to preset
Detection cycle, timing controlled first clutch move back and forth between the first location and the second location.In each detection cycle
In, if detecting, first clutch is unable to reach first position in the second duration, or is unable to reach second in third duration
Position, or when being unable to reach first position in the second duration and being unable to reach the second position in third duration, it is possible to determine that
In the current detection period, there are Block failures for first clutch.
In specific implementation, it in a driving procedure, can be deposited in multiple detection cycles, namely to first clutch
Whether Block failure is repeatedly confirmed.In a driving procedure, can recording first clutch in real time, there are clamping stagnation events
The number of barrier.When first clutch reaches preset first number there are the number of Block failure, it is possible to determine that the first clutch
Device is completely stuck, can not work normally.At this point it is possible to which control stopping sends motion control instruction, Ye Jiting to first clutch
Only control first clutch moves back and forth between the first location and the second location.
In practical applications, first number can be set according to actual needs.In specific implementation, first number is big
In 2 times.In an embodiment of the present invention, first number is set as 3 times.In an alternative embodiment of the invention, first number setting
It is 5 times.
After stopping sending motion control instruction to first clutch, clutch grab error code can be generated, and will give birth to
At clutch grab error code preserve.
In specific implementation, it is also possible to which there are following situations：First clutch is not completely stuck, in control first clutch
When moving back and forth between the first location and the second location, in first detection cycle, there are clamping stagnations for judgement first clutch
Failure, and in other multiple detection cycles, first clutch can reach first position and the second position.At this point, can
To judge that Block failure is not present in clutch.
In specific implementation, it can be recorded in real time in this driving procedure, there is no clamping stagnation events for judgement first clutch
The number of barrier.That is, in this driving procedure, after detecting first clutch there are catching phenomenon, judging
When first clutch whether there is Block failure, if detecting first clutch in a detection cycle, there are Block failures
Afterwards, there are the numbers of Block failure for record first clutch；If being detected in some detection cycle, first clutch is not deposited
In Block failure, then the number that Block failure is not present in first clutch can be recorded.
In multiple detection cycles, detecting first clutch, there is no the numbers of Block failure to reach second number,
And when detecting that first clutch is not up to first number there are the number of Block failure, it is possible to determine that the current energy of first clutch
Enough normal works.At this point it is possible to the shift fork in the second clutch for being currently at bonding state respective shaft is disengaged to middle position, and
Control first clutch recombines, to continue to output power.In embodiments of the present invention, second number is the integer more than 2.
In specific implementation, detecting first clutch, there is no the numbers of Block failure to reach second number, and examines
When measuring first clutch and being not up to first number there are the number of Block failure, it can also remove and be recorded in this driving procedure
First clutch there are the numbers of Block failure, and there are the transmissions of the number of Block failure by recorded first clutch
To ECU.The number that ECU is received and preserved first clutch there are Block failure, in order to which maintenance personnel can be informed in this
First clutch whether there is Block failure and the number there are Block failure in driving procedure, improve the event of maintenance personnel
Barrier investigation efficiency.
From, it is found that within multiple test periods, detecting first clutch, there are clamping stagnation events in the above embodiment of the present invention
After the number of barrier is more than first number, stops after first clutch sends motion control instruction, clutch grab can be generated
Error code, and the clutch grab error code of generation is preserved.That is, in this driving procedure, be used only second from
Clutch drives vehicle to travel, and does not use first clutch to drive vehicle to travel.
When driver is in startup vehicle next time, it can first detect and currently whether there is clutch grab error code.
When detecting the presence of clutch grab error code, it is possible to determine that there are stuck feelings for first clutch in upper primary driving procedure
Condition, at this point it is possible to determine that first clutch whether there is Block failure.
In specific implementation, it when determining that first clutch whether there is Block failure, may be used above-mentioned with the present invention
The identical method of first clutch Block failure confirmation method provided in embodiment.
In embodiments of the present invention, it after starting vehicle, detects there is currently when clutch grab error code, Ke Yizhou
Motion control instruction is sent to phase property to first clutch, is come between the first location and the second location with controlling first clutch
It backhauls dynamic.In each detection cycle, the displacement of first clutch is detected in real time.If in a detection cycle, is detected
One clutch can reach first position in the second duration and reach the second position in third duration, then judges the first clutch
Block failure is not present in device；Conversely, then judging first clutch, there are Block failures.
In the same manner, in multiple detection cycles, there are the numbers of Block failure to reach for the first time for judgement first clutch
When number, then clutch grab error code is generated, and in this driving procedure, power is exported only in conjunction with second clutch.
In multiple detection cycles, there are the numbers of Block failure to be not up to first number for judgement first clutch, and
When judgement first clutch reaches second number there is no the number of Block failure, then judge that first clutch being capable of normal work
Make.Judgement first clutch can work normally after, when receiving shifting commands input by user, then can by first from
Clutch is switched to bonding state.
In this driving procedure, if detecting, there are clutch grab error code in a driving procedure, again really
Determine first clutch and whether there is Block failure.When determining first clutch, there are the numbers of Block failure to be more than first number
When, then in this driving procedure, power is exported only in conjunction with second clutch, so as to which there are clamping stagnations in first clutch
It can continue to output power when failure.When determining that first clutch is more than second number there is no the number of Block failure,
First clutch is allowed to combine, to further increase travel safety.
With reference to Fig. 2, an embodiment of the present invention provides a kind of clutch controllers 20 of double-clutch speed changer, including：Inspection
Unit 201, Block failure determination unit 202 and the first control unit 203 are surveyed, wherein：
Detection unit 201 whether there is catching phenomenon, institute for detecting the first clutch in the double-clutch speed changer
It is the clutch for being currently at bonding state to state first clutch；
Block failure determination unit 202 detects the first clutch there are clamping stagnations for working as the detection unit 201
When phenomenon, determine that the first clutch whether there is Block failure；
First control unit 203, for when determining the first clutch there are when Block failure, control described first from
Shift fork in clutch respective shaft is disengaged to middle position, and controls the second clutch and combine, to continue to output power.
In specific implementation, the detection unit 201 can be used for receiving the torque demand instruction of driver's input, meter
Calculate clutch target torque requirements corresponding with torque demand instruction；The actual transfer for obtaining the first clutch is turned round
Square value；When the difference of the actual transfer torque value and the clutch target torque requirements is more than the duration of preset first threshold value
When more than default first duration, judge that there are catching phenomena for the first clutch.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：First hair
Unit 204 is sent, for after the Block failure determination unit 202 determines the first clutch there are Block failure, Xiang Fa
Motivation sends moment of torsion control instruction, controls the engine and switches to default first output torque value by current output torque value,
And the current output torque value is more than the first output torque value.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：Second hair
Unit 205 is sent, after controlling the second clutch combination in first control unit 203, is sent out to the engine
It send torque to restore instruction, controls and start before the engine output torque reverts to switching from the first output torque value
Machine output torque value.
In specific implementation, the Block failure determination unit 202 can be used for according to preset detection cycle to described
First clutch sends motion control instruction, with control the first clutch default first position and the default second position it
Between move back and forth；In each detection cycle, the displacement of the first clutch is detected in real time；When detecting following at least one
When situation, there are Block failures for the first clutch within the current detection period for judgement：The position of the first clutch exists
Can not be reached in preset second duration the default first position, the first clutch position in preset third duration
The interior duration that can not reach the default second position reaches default third duration, and the first position is double clutch speed-changings
The distance between driving disc spacing pressing and driven disc of device are more than the position of default first distance, and the second position is double clutches
The distance between driving disc spacing pressing and driven disc of speed changer are less than the position of default second distance, and first distance is more than described
Second distance.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：First note
Unit 206 is recorded, in this driving procedure, there are the numbers of Block failure for the first clutch of record judgement in real time；
Second control unit 207, for there are the numbers of Block failure to reach preset the when detect the judgement first clutch
When number, stop sending motion control instruction to the first clutch；First number is more than 2.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：Clamping stagnation event
Hinder code generation unit 208, for generating clutch grab error code；Storage unit 209, for preserving the clutch grab event
Hinder code.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：Judge single
Member 210, for when vehicle powers on, judging whether the clutch grab error code；The Block failure determination unit
202, it can be also used for when there are the clutch grab error code, determine the first clutch with the presence or absence of clamping stagnation event
Barrier.
In specific implementation, the Block failure determination unit 202 can be also used in a detection cycle, inspection
The first position and the second position can be reached by measuring the position of the first clutch, and judgement is in current detection week
Block failure is not present in the first clutch in phase.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：Second note
Unit 211 is recorded, for being recorded in real time at the number for judging that Block failure is not present in the first clutch in this driving procedure；
First control unit 203 can be also used for working as the number for detecting and judging that Block failure is not present in the first clutch
When reaching default second number, the shift fork controlled in the second clutch respective shaft is disengaged to middle position, and controls described first
Clutch combines, to continue to output power；Second number is more than 1.
With reference to Fig. 3, in specific implementation, the clutch controller 20 of double-clutch speed changer can also include：It removes single
Member 212, for when detect judge that the first clutch reaches default second number there is no the number of Block failure when, clearly
Except there are the numbers of Block failure for the judgement first clutch；Third transmission unit 213 is additionally operable to the judgement institute
Stating first clutch, there are the numbers of Block failure to be sent to ECU.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include：ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (23)
1. a kind of clutch control method of double-clutch speed changer, which is characterized in that including：
It detects the first clutch in the double-clutch speed changer and whether there is catching phenomenon, the first clutch is current place
In the clutch of bonding state；
When detecting the first clutch, there are when catching phenomenon, determine the first clutch with the presence or absence of Block failure；
When determining the first clutch, there are shift forks when Block failure, controlled in the first clutch respective shaft to be disengaged to
Middle position, and second clutch combination is controlled, to continue to output power.
2. the clutch control method of double-clutch speed changer as described in claim 1, which is characterized in that the detection described the
One clutch whether there is catching phenomenon, including：
The torque demand instruction of driver's input is received, calculating clutch target torque corresponding with torque demand instruction needs
Evaluation；
Obtain the actual transfer torque value of the first clutch；
When the difference of the actual transfer torque value and the clutch target torque requirements is more than the duration of preset first threshold value
When more than default first duration, judge that there are catching phenomena for the first clutch.
3. the clutch control method of double-clutch speed changer as described in claim 1, which is characterized in that when determining described first
After clutch is there are Block failure, further include：
Moment of torsion control instruction is sent to engine, the engine is controlled and default first output is switched to by current output torque value
Torque value, and the current output torque value is more than the first output torque value.
4. the clutch control method of double-clutch speed changer as claimed in claim 3, which is characterized in that in control described second
After clutch combines, further include：
Torque is sent to the engine and restores instruction, and it is extensive from the first output torque value to control the engine output torque
The multiple engine output torque value for before switching.
5. the clutch control method of double-clutch speed changer as described in claim 1, which is characterized in that the determination described
One clutch whether there is Block failure, including：
Motion control instruction is sent to the first clutch according to preset detection cycle, is existed with controlling the first clutch
It is default to be moved back and forth between first position and the default second position；
In each detection cycle, the displacement of the first clutch is detected in real time；
When detecting following at least one situation, there are clamping stagnation events for the first clutch within the current detection period for judgement
Barrier：The position of the first clutch can not be reached in preset second duration the default first position, described first from
The duration that the position of clutch can not reach the default second position in preset third duration reaches default third duration, institute
The position that the distance between driving disc spacing pressing and the driven disc that first position is the double-clutch speed changer are more than default first distance is stated,
The second position is the position that the distance between driving disc spacing pressing and driven disc of the double-clutch speed changer are less than default second distance
It sets, and first distance is more than the second distance.
6. the clutch control method of double-clutch speed changer as claimed in claim 5, which is characterized in that further include：
In this driving procedure, there are the numbers of Block failure for the first clutch of record judgement in real time；
When detecting that the judgement first clutch reaches preset first number there are the number of Block failure, stop to institute
It states first clutch and sends motion control instruction；First number is more than 2.
7. the clutch control method of double-clutch speed changer as claimed in claim 6, which is characterized in that when detecting described
After one clutch reaches preset times there are the number of Block failure, further include：
It generates clutch grab error code and preserves.
8. the clutch control method of double-clutch speed changer as claimed in claim 7, which is characterized in that further include：
When vehicle powers on, the clutch grab error code is judged whether；
When there are the clutch grab error code, determine that the first clutch whether there is Block failure；When described
There are shift forks when Block failure, controlled in the first clutch respective shaft to be disengaged to middle position for one clutch, and controls second
Clutch combines, to continue to output power.
9. the clutch control method of double-clutch speed changer as claimed in claim 8, which is characterized in that the determination described
One clutch whether there is Block failure, including：
Motion control instruction is sent to the first clutch according to preset detection cycle, is existed with controlling the first clutch
It is default to be moved back and forth between first position and the default second position；
In each detection cycle, the displacement of the first clutch is detected in real time；
When detecting following at least one situation, there are clamping stagnation events for the first clutch within the current detection period for judgement
Barrier：The position of the first clutch can not be reached in preset second duration the default first position, described first from
The duration that the position of clutch can not reach the default second position in preset third duration reaches default third duration, institute
The position that the distance between driving disc spacing pressing and the driven disc that first position is the double-clutch speed changer are more than default first distance is stated,
The second position is the position that the distance between driving disc spacing pressing and driven disc of the double-clutch speed changer are less than default second distance
It sets, and first distance is more than the second distance.
10. the clutch control method of double-clutch speed changer as claimed in claim 5, which is characterized in that further include：
Within the current detection period, detect that the position of the first clutch can reach the first position and described
Block failure is not present in the second position, judgement first clutch within the current detection period.
11. the clutch control method of double-clutch speed changer as claimed in claim 10, which is characterized in that further include：
It is recorded in real time at the number for judging that Block failure is not present in the first clutch in this driving procedure；
When detecting that the judgement first clutch reaches default second number there is no the number of Block failure, described in control
Shift fork in second clutch respective shaft is disengaged to middle position, and controls the first clutch and combine, to continue to output power；Institute
It states second number and is more than 1.
12. the clutch control method of double-clutch speed changer as claimed in claim 11, which is characterized in that judging described the
After one clutch reaches default second number there is no the number of Block failure, further include：Remove the judgement described first
There are the numbers of Block failure for clutch, and there are the numbers of Block failure to be sent to by the judgement first clutch
ECU。
13. a kind of clutch controller of double-clutch speed changer, which is characterized in that including：
Detection unit, for detect the first clutch in the double-clutch speed changer whether there is catching phenomenon, described first
Clutch is the clutch for being currently at bonding state；
Block failure determination unit, for detecting the first clutch there are when catching phenomenon, really when the detection unit
The fixed first clutch whether there is Block failure；
First control unit, for when determining that the first clutch there are when Block failure, controls the first clutch pair
It answers the shift fork on axis to be disengaged to middle position, and controls second clutch combination, to continue to output power.
14. the clutch controller of double-clutch speed changer as claimed in claim 13, which is characterized in that the detection is single
Member, the torque demand instruction for receiving driver's input, calculates clutch target corresponding with torque demand instruction and turns round
Square requirements；Obtain the actual transfer torque value of the first clutch；When the actual transfer torque value and the clutch
When the duration that the difference of target torque requirements is more than preset first threshold value is more than default first duration, the first clutch is judged
There are catching phenomena.
15. the clutch controller of double-clutch speed changer as claimed in claim 13, which is characterized in that further include：First
Transmission unit, for after the Block failure determination unit determines the first clutch there are Block failure, to engine
Moment of torsion control instruction is sent, the engine is controlled and default first output torque value, and institute is switched to by current output torque value
It states current output torque value and is more than the first output torque value.
16. the clutch controller of double-clutch speed changer as claimed in claim 15, which is characterized in that further include：Second
Transmission unit sends to the engine and turns round after controlling the second clutch combination in first control unit
Square restores instruction, and the engine controlled before the engine output torque reverts to switching from the first output torque value is defeated
Go out torque value.
17. the clutch controller of double-clutch speed changer as claimed in claim 13, which is characterized in that the Block failure
Determination unit, for sending motion control instruction to the first clutch according to preset detection cycle, to control described the
One clutch moves back and forth between default first position and the default second position；In each detection cycle, institute is detected in real time
State the displacement of first clutch；When detecting following at least one situation, judgement within the current detection period described first from
There are Block failures for clutch：The position of the first clutch can not reach described first default in preset second duration
It sets, the position of the first clutch can not reach the duration of the default second position in preset third duration and reach pre-
If third duration, the first position is that the distance between driving disc spacing pressing and driven disc of the double-clutch speed changer are more than and preset the
The position of one distance, the second position are that the distance between driving disc spacing pressing and driven disc of the double-clutch speed changer are less than in advance
If the position of second distance, and first distance is more than the second distance.
18. the clutch controller of double-clutch speed changer as claimed in claim 17, which is characterized in that further include：
First recording unit, in this driving procedure, there are Block failures for the first clutch of record judgement in real time
Number；
Second control unit, for there are the numbers of Block failure to reach preset the when detect the judgement first clutch
When number, stop sending motion control instruction to the first clutch；First number is more than 2.
19. the clutch controller of double-clutch speed changer as claimed in claim 18, which is characterized in that further include：
Block failure code generation unit, for generating clutch grab error code；
Storage unit, for preserving the clutch grab error code.
20. the clutch controller of double-clutch speed changer as claimed in claim 19, which is characterized in that further include：
Judging unit, for when vehicle powers on, judging whether the clutch grab error code；
The Block failure determination unit is additionally operable to when there are the clutch grab error code, determines first clutch
Device whether there is Block failure.
21. the clutch controller of double-clutch speed changer as claimed in claim 17, which is characterized in that the Block failure
Determination unit is additionally operable in a detection cycle, detects that the position of the first clutch can reach described first
Block failure is not present in position and the second position, judgement first clutch within the current detection period.
22. the clutch controller of double-clutch speed changer as claimed in claim 21, which is characterized in that further include：
Second recording unit judges that Block failure is not present in the first clutch for being recorded in real time in this driving procedure
Number；
First control unit is additionally operable to judge the first clutch there is no the numbers of Block failure to reach when detecting
When presetting second number, the shift fork controlled in the second clutch respective shaft is disengaged to middle position, and controls first clutch
Device combines, to continue to output power；Second number is more than 1.
23. the clutch controller of double-clutch speed changer as claimed in claim 22, which is characterized in that further include：
Clearing cell, for there is no the numbers of Block failure to reach default second when detecting the judgement first clutch
When number, removing the judgement first clutch, there are the numbers of Block failure；
Third transmission unit, is additionally operable to that there are the numbers of Block failure to be sent to ECU by the judgement first clutch.
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| CN201710170180.1A CN108626271B (en) | 2017-03-21 | 2017-03-21 | A kind of clutch control method and device of double-clutch speed changer |
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| CN201710170180.1A CN108626271B (en) | 2017-03-21 | 2017-03-21 | A kind of clutch control method and device of double-clutch speed changer |
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| CN108626271B (en) | 2019-11-15 |
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