CN108150639A - Synchronisation control means and device, the automobile of synchronizer - Google Patents
Synchronisation control means and device, the automobile of synchronizer Download PDFInfo
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- CN108150639A CN108150639A CN201611096923.7A CN201611096923A CN108150639A CN 108150639 A CN108150639 A CN 108150639A CN 201611096923 A CN201611096923 A CN 201611096923A CN 108150639 A CN108150639 A CN 108150639A
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- synchronizer
- gear
- synchronous
- synchronisation
- synchronization
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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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
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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
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0418—Synchronisation before shifting by using different synchronisation devices simultaneously, e.g. for faster synchronisation
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
Synchronisation control means and device, the automobile of a kind of synchronizer, the method includes：The synchronous regime of the synchronizer is received in gear shift；If the synchronous regime of the synchronizer shows that the synchronizer is synchronized to the synchronization time of first object gear more than default waiting time with the first standard synchronisation force value, the synchronizer is then controlled to be retried synchronization at least once, the synchronous simultaneous force desired value used is retried every time and is gradually increased on the basis of the first standard synchronisation force value.The present invention program can overcome the moment of inertia of synchronizer to a greater degree, improve the synchronization success rate of synchronizer.
Description
Technical field
The present invention relates to car transmissions control field, the synchronisation control means and device of especially a kind of synchronizer,
Automobile.
Background technology
The automatic gear-box of automobile can be according to the operating modes such as engine load and speed, the transmission of auto-changing transmission system
Than so that automobile obtains good dynamic property, safety, riding comfort and the manipulation for significantly increasing vehicle traveling are light
Property, and engine emission pollution is efficiently reduced, since the advent of the world is just concerned.
Specifically, when driving employs the automobile of automatic gear-box, driver only need to need to control according to traveling to be added
Speed pedal, speed changer can automatically change to different stalls work, so as to make according to the variation of engine load and car speed
Driver behavior is greatly simplified light, is conducive to drive safely, and makes the variation smooth-going of gearshift procedure medium velocity, so as to improve automobile
Acceleration and comfort.
During self-changing gearbox gear-shifting, ensure to realize smoothly into engagement between gear using synchronizer, and then
Gear shift success.But when automobile storage is in failure, such as there is automotive networking failure or automatic gear-box generation problem, hold
Easily lead to the situation of synchronization failure.
In the prior art, for synchronization failure, the solution taken is tasted repeatedly with the identical method of synchronization
Examination, but there are problems that leading to synchronizer increased wear due to continued synchronization failure.If specifically, due to automobile hardware
Hinder and problem (such as the fluid of automatic gear-box is mixed with impurity or mechanical clamping stagnation) occurs, synchronizer is carried out repeatedly, for a long time
Synchronize repeatedly do not ensure that gear shift success, instead can acceleration synchronization device abrasion, reduce gear shift efficiency, and then influence drive sense
By.
Invention content
The technical problem to be solved by the present invention is to provide synchronisation control means and device, the automobile of a kind of synchronizer, Ke Yigeng
Overcome to big degree the moment of inertia of synchronizer, improve the synchronization success rate of synchronizer, reduce the abrasion frequency to synchronizer, into
And effectively synchronizer is protected.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of synchronisation control means of synchronizer, including following
Step：The synchronous regime of the synchronizer is received in gear shift；If the synchronous regime of the synchronizer show the synchronizer with
The synchronization time that first standard synchronisation force value is synchronized to first object gear is more than default waiting time, then controls the synchronizer
Retried synchronization at least once, retry every time the synchronous simultaneous force desired value used on the basis of the first standard synchronisation force value by
Secondary increase.
Optionally, when retrying synchronous every time, the synchronizer is controlled to be synchronized to described using the simultaneous force desired value
One target gear, until synchronize successfully or synchronization time be more than the default waiting time..
Optionally, the synchronisation control means of the synchronizer further includes：It retries synchronous number when described and reaches default time
During number, the synchronizer is controlled to be synchronized to the second target gear using the second standard synchronisation force value, the second target gear is not
It is same as the first object gear.
Optionally, the simultaneous force desired value is the first standard synchronisation force value and the product of enhancement coefficient.
Optionally, the enhancement coefficient retries synchronous counting how many times with correspondence with described, described to retry synchronization
Counting how many times it is bigger, the enhancement coefficient is bigger.
Optionally, the enhancement coefficient also has correspondence with following one or more vehicle-states：Gear switch shape
State, TOT Transmission Oil Temperature, vehicle mileage；With the gear switch state for downshift to preset gear when compared with, when the gear
When switching state is upshifts to the preset gear, the enhancement coefficient bigger；The TOT Transmission Oil Temperature is lower, the increase system
Number is bigger；The vehicle mileage is higher, and the enhancement coefficient is bigger.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of sync control device of synchronizer, including：It receives
Module, suitable for receiving the synchronous regime of the synchronizer in gear shift；First control module, suitable for working as the synchronization of the synchronizer
State shows that the synchronizer is synchronized to the synchronization time of first object gear more than default waiting with the first standard synchronisation force value
During duration, then the synchronizer is controlled to be retried synchronization at least once, retry every time the synchronous simultaneous force desired value used with
Gradually increase on the basis of first standard synchronisation force value.
Optionally, when retrying synchronous every time, the synchronizer is controlled to be synchronized to described using the simultaneous force desired value
One target gear, until synchronize successfully or synchronization time be more than the default waiting time..
Optionally, the second control module, suitable for when it is described retry synchronous number and reach preset times when, control described same
Step device is synchronized to the second target gear using the second standard synchronisation force value, and the second target gear is different from the first object
Gear.
Optionally, the sync control device of the synchronizer further includes：Second control module, suitable for retrying synchronization when described
Number when reaching preset times, the synchronizer is controlled to be synchronized to the second target gear, institute using the second standard synchronisation force value
The second target gear is stated different from the first object gear.
Optionally, the simultaneous force desired value is the first standard synchronisation force value and the product of enhancement coefficient.
Optionally, the enhancement coefficient retries synchronous counting how many times with correspondence with described, described to retry synchronization
Counting how many times it is bigger, the enhancement coefficient is bigger.
Optionally, the enhancement coefficient also has correspondence with following one or more vehicle-states：Gear switch shape
State, TOT Transmission Oil Temperature, vehicle mileage；With the gear switch state for downshift to preset gear when compared with, when the gear
When switching state is upshifts to the preset gear, the enhancement coefficient bigger；The TOT Transmission Oil Temperature is lower, the increase system
Number is bigger；The vehicle mileage is higher, and the enhancement coefficient is bigger.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of automobile, the automobile includes above-mentioned synchronizer
Sync control device.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that：
The embodiment of the present invention receives the synchronous regime of the synchronizer in gear shift；If the synchronous regime table of the synchronizer
The bright synchronizer is more than default waiting time with the synchronization time that the first standard synchronisation force value is synchronized to first object gear, then
The synchronizer is controlled to be retried synchronization at least once, it is same with the first standard to retry the synchronous simultaneous force desired value used every time
Gradually increase on the basis of step force value.It relative in the prior art, is made repeated attempts with the identical method of synchronization, the present invention is implemented
Example can overcome the moment of inertia of synchronizer to a greater degree, and then improve the synchronization success rate of synchronizer, reduce to synchronizer
Abrasion frequency, and then effectively synchronizer is protected.Also, when synchronization failure occurs, after waiting for a period of time again
Increased simultaneous force desired value is exported, helps avoid frequently adjusting the simultaneous force, and then avoids that synchronizer stress occurs not
The problem of even damaging, effectively protects synchronizer.
Further, when the synchronization failure time is longer, the more but still synchronization failure of the frequency of failure, when can not complete into shelves,
It using the embodiment of the present invention, can stop being synchronized to the trial of current target gear, and then be synchronized to different target gears,
Make vehicle successful switch target gear.Relative in the prior art, for synchronization failure, carried out repeatedly with the identical method of synchronization
Attempt, there are severe hardware problems in automobile in setting Stop node of the embodiment of the present invention, described problem can cause it is synchronous entirely without
During method success, effectively avoid attempting to synchronize for a long time, and then protect synchronizer, avoid it by meaningless loss.
Further, relative in the prior art only the output phase with synchronization force value, the embodiment of the present invention can be according to automobile
A variety of vehicle-states calibrate enhancement coefficient, and simultaneous force target is calculated according to enhancement coefficient combination simultaneous force output scheme
Value so as under different vehicle conditions, select suitable simultaneous force desired value, improves synchronous success rate.
Description of the drawings
Fig. 1 is a kind of flow chart of the synchronisation control means of synchronizer in the embodiment of the present invention；
Fig. 2 is the flow chart of the synchronisation control means of another synchronizer in the embodiment of the present invention；
Fig. 3 is a kind of structure diagram of the sync control device of synchronizer in the embodiment of the present invention.
Specific embodiment
As previously mentioned, during self-changing gearbox gear-shifting, when automobile storage is in failure, such as there is automotive networking event
Problem occurs for barrier or automatic gear-box, is easy to cause the situation of synchronization failure.In the prior art, it for synchronization failure, adopts
The solution taken there are problems that leading to synchronizer increased wear due to continued synchronization failure.
The present inventor pass through the study found that the above problem it is crucial that the prior art using with identical
Synchronous the step of hanging shelves is repeated in simultaneous force, can not solve the synchronization failure occurred due to automobile hardware fault.Specifically,
For because the subproblem (such as the fluid of automatic gear-box is mixed with impurity or mechanical clamping stagnation) occurred during automobile hardware fault, warp
Maiden attempt, on the basis of it can not overcome the moment of inertia of synchronizer using smaller simultaneous force, repeatedly using smaller same
Step power do not ensure that gear shift success, instead can acceleration synchronization device abrasion.
The embodiment of the present invention receives the synchronous regime of the synchronizer in gear shift；If the synchronous regime table of the synchronizer
The bright synchronizer is more than default waiting time with the synchronization time that the first standard synchronisation force value is synchronized to first object gear, then
The synchronizer is controlled to be retried synchronization at least once, it is same with the first standard to retry the synchronous simultaneous force desired value used every time
Gradually increase on the basis of step force value.It relative in the prior art, is made repeated attempts with the identical method of synchronization, the present invention is implemented
Example can overcome the moment of inertia of synchronizer, and then improve synchronizer to a greater degree using the method for gradually increasing simultaneous force
Synchronization success rate, reduce the abrasion frequency to synchronizer, and then effectively synchronizer is protected.Also, occurring together
During step failure, increased simultaneous force desired value is exported after waiting for a period of time again, helps avoid frequently adjusting the simultaneous force,
And then avoid the problem that synchronizer unbalance stress, which occurs, even to be damaged, and effectively protects synchronizer.
It is understandable for above-mentioned purpose, feature and advantageous effect of the invention is enable to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
With reference to figure 1, Fig. 1 is a kind of flow chart of the synchronisation control means of synchronizer in the embodiment of the present invention, described same
The synchronisation control means of step device can include step S101 to step S102.
Step S101：The synchronous regime of the synchronizer is received in gear shift.
Step S102：If the synchronous regime of the synchronizer shows that the synchronizer is synchronized to the first standard synchronisation force value
The synchronization time of first object gear is more than default waiting time, then the synchronizer is controlled to be retried synchronization at least once,
The synchronous simultaneous force desired value used is retried every time on the basis of the first standard synchronisation force value gradually to increase.
The specific embodiment of the synchronisation control means of the synchronizer is described in detail with reference to Fig. 1.
In the specific implementation of step S101, the synchronous regime of the synchronizer can be same with the first standard including synchronizer
Force value is walked, first object gear is successfully synchronized to or is synchronized to first object gear with failing.When failing into
When work(synchronizes, synchronizer will use identical standard synchronisation force value, again attempt to be synchronized to identical target gear.
Specifically, in gear shift, if two gears of speed changer carry out forcing to hang shelves when the gear teeth are asynchronous, because of two teeth
Existing speed difference between wheel, it may occur that impact and noise.It needs to mutually compress the effect conical surface by simultaneous force used so as to generate
Property torque (also known as moment of friction) so that the peripheral speed of a pair gear tooth to be engaged of selected gear rapidly close to until
It is equal, and then two gears is made smoothly to engage and hang up gear, it can successfully be synchronized to target shift into shelves namely synchronizer
Position., whereas if the moment of inertia fails to make principal and subordinate's rotating speed equal close to the peripheral speed to two gears, lead to two gears not
It can successfully engage, then synchronizer is synchronized to target gear with failing.
Further, the effect conical surface is mutually compressed so as to which the process for generating moment of inertia is by joint element and position
In the synchronization ring contact on idler gear, and generate friction on the contact surface and realize.Using the joint element as clutch collar
For, only identical with idler gear rotating speed in clutch collar, when moment of inertia disappears, locking effect failure, clutch collar is in axial direction
Under power effect, the spline engagement with idler gear successfully completes gear shift.
In specific implementation, can be when combined cover start to contact with synchronous ring, setting combined cover position is that distance is initial
Point (be otherwise known as synchronous point) when combined cover exceeds pre-determined distance threshold value with the relative motion distance of synchronous ring, is considered as described
The spline engagement of clutch collar and idler gear is successful namely synchronizes success.It is possible to further pass through synchronizer position sensor
Detect relative motion distance of the combined cover with synchronous ring.The pre-determined distance threshold value can be based on the different type kind of synchronizer
Class is configured according to actual conditions.By taking inertial type of synchronizer as an example, as a non-limitative example, the pre-determined distance
Threshold value can be selected from 2mm~10mm, and preferred value can be 5mm.
In the specific implementation of step S102, if the synchronous regime of the synchronizer shows the synchronizer with the first standard
Synchronous force value is synchronized to first object gear with failing, and synchronization time is more than default waiting time, then described in control
Synchronizer is retried synchronization at least once, retry every time the synchronous simultaneous force desired value used using the first standard synchronisation force value as
Benchmark gradually increases.When retrying synchronous every time, is synchronized to using when previous retrying synchronizes corresponding simultaneous force desired value
One target gear, if synchronization time is more than default waiting time, this retries same the end of the step, uses the simultaneous force mesh of bigger
Scale value is retried synchronization next time；If this, which is retried, synchronizes success, this time gear shift operation terminates, next without carrying out again
It is secondary to retry synchronization.
Specifically, the default waiting time is longer, more with the number that the first standard synchronisation force value is attempted.If it sets
The problem of default waiting time is long, and easily generation causes synchronizer frictional dissipation serious because synchronizing repeatedly is put, if setting is pre-
If waiting time is too short, then synchronous force value increase is excessively frequent, easily causes synchronizer and hits damage.It is nonrestrictive as one
Example, default waiting time can be set as 100ms to 5s, preferably 500ms.
Wherein, it is extremely short when the default waiting time, such as during equal or close to 0, the synchronizer can be considered as only
One subsynchronous trial is carried out using the first standard synchronisation force value, failing to successful synchronization then controls institute to first object gear
Synchronizer is stated directly to carry out retrying synchronization using increased simultaneous force desired value.
In another specific embodiment, default waiting time can also be changed to be defined with preset times, if described same
The synchronous regime of step device shows that the synchronizer is synchronized to the synchronization times of first object gear with the first standard synchronisation force value and surpassed
Preset times are crossed, then the synchronizer is controlled to be retried synchronization at least once, retry the simultaneous force target of synchronous use every time
Value is gradually increased on the basis of the first standard synchronisation force value.
As a unrestricted example, preset times can be set as to 1 time to 20 times, preferably 3 times.
Further, the simultaneous force desired value for synchronizing and using that retries gradually is increased on the basis of the first standard synchronisation force value
Greatly.This is because the synchronization force value used is bigger, more contributes to synchronize success, by stepping up synchronous force value, help to carry
The synchronous success rate of height.
Specifically, in the course of work of synchronizer, mutually compress the effect conical surface by simultaneous force used so as to generate
Property torque so that principal and subordinate's rotating speed approaches, and then successful synchronization and into shelves.Wherein, the formula for calculating the moment of inertia can be with
For:
Moment of inertia=simultaneous force * synchronization factors；
Wherein, synchronization factor=conical surface amplification coefficient * friction coefficient * synchronizes ring radius；
As can be seen that synchronous force value is bigger from formula, the moment of inertia of generation is bigger, completes synchronous required time and gets over
It is short, it is higher into shelves success rate.
Further, the simultaneous force desired value is the first standard synchronisation force value and the product of enhancement coefficient.
In embodiments of the present invention, the enhancement coefficient can be obtained by the mode of demarcating, the number meter synchronous with retrying
Number has correspondence, described to retry that synchronous counting how many times are bigger, and the enhancement coefficient is bigger.
Specifically, retry that synchronous number is more, it is bigger to demonstrate the need for the synchronization force value used, to increase into shelves success
Rate.
The enhancement coefficient also has correspondence with following one or more vehicle-states：Gear switch state, speed change
Case oil temperature, vehicle mileage.
Wherein, with the gear switch state for downshift to preset gear when compared with, when the gear switch state for rise
When shelves are to the preset gear, the enhancement coefficient bigger.Specifically, during upshift, vehicle often in acceleration mode, needs
Higher gear shift success rate is wanted and faster into notch speed degree, to ensure that engine provides higher dynamic torque.At this time use compared with
Big enhancement coefficient obtains the synchronization force value of bigger, helps to shorten synchronization time, and improve into shelves success rate.
The TOT Transmission Oil Temperature is lower, and the enhancement coefficient is bigger.Specifically, TOT Transmission Oil Temperature is lower, fluid restrains
Power is bigger, also just needs the simultaneous force of bigger that fluid is overcome to draw.At this time using larger enhancement coefficient, to obtain the same of bigger
Force value is walked, is helped to improve into shelves success rate.
The vehicle mileage is higher, and the enhancement coefficient is bigger.Specifically, vehicle mileage is higher, occur soft or hard
The probability of part failure is accordingly higher, it is necessary to be attempted using the simultaneous force of bigger.Larger enhancement coefficient is used at this time, with
The synchronization force value of bigger is obtained, is helped to improve into shelves success rate.
In another specific embodiment, enhancement coefficient can also be set greater than to 1 fixed value, such as using increase
When primary simultaneous force desired value carries out retrying synchronous, enhancement coefficient is set as 150%.Correspondingly, increase is being used twice
Simultaneous force desired value when carrying out retrying synchronous, enhancement coefficient is set as 225%, as (150%)2.And so on, it can be with
It is subsequently carried out retrying synchronous enhancement coefficient (150%)n, wherein, n is the increase number of simultaneous force desired value.
Relative in the prior art only the output phase with synchronization force value, the embodiment of the present invention can be according to a variety of vehicles of automobile
State calibrates enhancement coefficient, and calculates simultaneous force desired value according to enhancement coefficient combination simultaneous force output scheme, so as to
Under different vehicle conditions, suitable simultaneous force desired value is selected, improves synchronous success rate.
With reference to figure 2, Fig. 2 is the flow chart of the synchronisation control means of another synchronizer in the embodiment of the present invention, described
The synchronisation control means of synchronizer can include step S201 to step S209.
Step S201：Start timing.
Specifically, the timing module that may be used in car running computer realizes clocking capability, can also use integrated or external
Time set realize clocking capability, such as conventional timing electromagnetic shooting point timer and electric spark clock.The present invention
To time set and realize that the mode of timing is not limited.
Step S202：Control synchronizer is synchronized to first object gear using the first standard synchronisation force value.
Step S203：Judge whether to synchronize success, when judging result is when being, realizes and synchronize, can be considered as flow and terminate；
Conversely, it can then perform step S204.
Execution in relation to step S202 and the judgement to step S203, the description for referring to the step S101 in Fig. 1 carry out
It performs, details are not described herein again.
Step S204：Judge whether timing reaches default waiting time, when judging result is when being, can perform step
S205；Conversely, it can then be continued to execute with return to step S202.
In specific implementation, failing to default waiting time has not yet been reached in the duration of successful synchronization, synchronizer will
Using identical standard synchronisation force value, again attempt to be synchronized to identical target gear.
Execution in relation to step S204, the description for referring to the step S102 in Fig. 1 are performed, and details are not described herein again.
Step S205：Start timing.
In specific implementation, start timing to be used in follow-up process, judge whether to adopt according to the period that timing reaches
With increased synchronous force value.
, can be with the timed process shown in common steps S201, and then in follow-up process in another specific embodiment, root
Judge whether according to the longer time section that timing reaches using increased synchronous force value.So as to omit the timing shown in step S205
Step
Step S206：Control synchronizer retries synchronization using simultaneous force desired value, and wherein simultaneous force desired value is with the first mark
Increase on the basis of plesiochronous force value with the number being obstructed into shelves and increase.
Wherein, if carrying out retrying the synchronization time for being synchronized to the first object gear using the simultaneous force desired value
More than default waiting time, then the number for being recorded as being obstructed into shelves increases primary.
In embodiments of the present invention, when retrying synchronous every time, corresponding simultaneous force mesh is synchronized using when previous retrying
Scale value is synchronized to first object gear, if synchronization time is more than default waiting time, this retries same the end of the step, using more
Big simultaneous force desired value is retried synchronization next time；If this, which is retried, synchronizes success, this time gear shift operation terminates, nothing
Synchronization need to be retried next time again.
In specific implementation, it may be used into the number that shelves are obstructed as the simultaneous force desired value gradually increased counting
Foundation.It is more than default waiting time due to needing synchronization time, can just increases the number being obstructed into shelves namely time being obstructed into shelves
Number is less than or equal to the number of synchronization failure.Using the number being obstructed into shelves as foundation is counted, help avoid synchronous force value and increase
Add excessively frequently, cause synchronizer hit damage.
Setting in relation to simultaneous force desired value, the description for referring to the step S102 in Fig. 1 are performed, no longer superfluous herein
It states.
Step S207：Judge whether to synchronize success, when judging result is when being, realizes and synchronize, can be considered as flow and terminate；
Conversely, it can then perform step S208.
Execution in relation to step S207, the description for referring to the step S101 in Fig. 1 are performed, and details are not described herein again.
Step S208：Judge whether timing reaches default waiting time, when judging result is when being, can perform step
S209；Conversely, it can then be continued to execute with return to step S206.
Execution in relation to step S208, the description for referring to the step S102 in Fig. 1 are performed, and details are not described herein again.
Step S209：Add one into the number that shelves are obstructed.
In specific implementation, the number being obstructed into shelves is more, and simultaneous force desired value is bigger.With the number using synchronization failure
As counting according to comparing, helping avoid synchronous force value increases excessively frequent, and synchronizer shock is caused to damage.
It is understood that when synchronizing successfully, the number being obstructed into shelves should be reset, be obstructed with subsynchronous under guarantee
When count from zero.
Step S210：Judgement retries whether synchronous counting how many times reach preset times, can be with when judging result is when being
Perform step S211；Conversely, it can then be continued to execute with return to step S206.
Step S211：Control synchronizer is synchronized to the second target gear using the second standard synchronisation force value.
In specific implementation, when it is described retry synchronous number and reach preset times when, control the synchronizer using the
Two standard synchronisation force value are synchronized to the second target gear, and the second target gear is different from the first object gear.
Specifically, when vehicle carries out upshift operation, the second target gear is than first object gear higher one
The drive shift of shelves.When vehicle carries out downshift operation, before the second target gear is one grade lower than first object gear
Into shelves.
By taking the gear highest gear number of vehicle drive shift is 5 grades as an example, when vehicle carries out upshift operation, the first object shelves
Position controls the synchronizer using the second standard synchronisation force value corresponding with 5 grades for 4 grades, and when being synchronized to 4 grades of failures, synchronous
To 5 grades of the second target gear.Wherein, if the first object gear is most high-grade, such as 5 grades, then the synchronization is controlled
Device returns to 4 grades and synchronizes.
When the vehicle carries out downshift operation, first object gear is 2 grades, when being synchronized to 2 grades of failures, controls the synchronization
Device uses the second standard synchronisation force value corresponding with 1 grade, is synchronized to 1 grade of the second target gear.Wherein, if the first object
Gear is deep low gear, such as 1 grade, then the synchronizer is controlled to return to 2 grades and is synchronized.
It, can not be complete when the synchronization failure time is longer, the more but still synchronization failure of the frequency of failure using the embodiment of the present invention
During into shelves, synchronous trial can be stopped, and then be synchronized to different target gears, make vehicle successful switch target gear.Phase
For in the prior art, for synchronization failure, being made repeated attempts with the identical method of synchronization, setting of the embodiment of the present invention stops
There are severe hardware problems in automobile in node, and described problem can cause to synchronize when completely can not succeed, and effectively avoid tasting for a long time
Examination synchronizes, and then protects synchronizer, it is avoided meaninglessly to be lost.
With reference to Fig. 3, Fig. 3 is a kind of structure diagram of the sync control device of synchronizer in the embodiment of the present invention.Together
The sync control device of step device can include receiving module 301, the first control module 302 and the second control module 303.
Wherein, the receiving module 301 is suitable for receiving the synchronous regime of the synchronizer in gear shift.First control module
302 are suitable for showing that the synchronizer is synchronized to first object shelves with the first standard synchronisation force value when the synchronous regime of the synchronizer
When the synchronization time of position is more than default waiting time, then the synchronizer is controlled to be retried synchronization at least once, is retried every time
The synchronous simultaneous force desired value used is gradually increased on the basis of the first standard synchronisation force value.Second control module 303 is suitable
In when it is described retry synchronous number and reach preset times when, the synchronizer is controlled to be synchronized to using the second standard synchronisation force value
Second target gear, the second target gear are different from the first object gear.
More detailed contents of sync control device about the synchronizer are please referred to be controlled previously for the synchronous of synchronizer
The associated description of method processed, details are not described herein again.
The embodiment of the present invention additionally provides a kind of automobile, and the automobile includes the sync control device of above-mentioned synchronizer, institute
The synchronisation control means of above-mentioned synchronizer can be performed by stating automobile.
Further, the synchronisation control means of Fig. 1 to synchronizer shown in Fig. 2 can be with existing standard synchronisation force value
Algorithm is matched.The sync control device of synchronizer shown in Fig. 3 can be applied to conventional synchronizer.
Specifically, corresponding to conventional synchronizer, in normal gear change, enter new gear from current gear and undergo altogether
Six stages.Wherein, three kinds of control models are employed：Power control, speed control and shelves be closed control.
In six stages, each stage corresponds to different control models.(including two by taking automobile gear level state is third gear as an example
1 grade, 2 grades of a drive shift and neutral gear), when vehicle is in shelves state, i.e., in neutral gear, 1 grade or 2 grades when, pass through and be closed control
System ensures that gear is in lockup state.When vehicle, which carries out drive shift, hangs shelves, synchronous phase is controlled for power, is controlled and ensured using power
Steadily into shelves.When vehicle pluck grade step, faster speed is needed to complete, belongs to speed control.
For with the relevant standard synchronisation force value of automobile gear level, need to be selected according to the difference of operating mode.Vehicle into
During row slides downshift, in order to realize the advance and retreat shelves of smooth-going, using revocable standard synchronisation force value.It upshifts in vehicle
In the process, initial synchronisation power uses the control mode of linear increment, to ensure shorter synchronization time.
Specifically, when vehicle downshifts, using the opened loop control with time correlation, Synchronization Control is divided into following several synchronizer
A step：It carries out removing power process first, notch speed degree is moved back to slow down；Then maintenance process is carried out, shifts synchronizer onto synchronous point；
Followed by carrying out removing power process, to reduce synchronous thrust；Afterburner process is finally carried out, is ensured with being reinforced after completing to synchronize into shelves
Success.So as to fulfill when synchronous point will be arrived at, reduce simultaneous force, moment of inertia is reduced with this, and then synchronous ring is avoided to support
During up to synchronous point, simultaneous force crosses the inertia that conference causes impulsive sound and simultaneous force to be generated on cone of friction to combining gear ring
Transmission dither axis caused by torque.
When vehicle upshifts, the control mode of linear increment may be used in the standard synchronisation force value, can pass through following public affairs
Formula obtains：
Standard synchronisation power=initial synchronisation power+simultaneous force change rate * current sync timing times；
With the extension of current sync timing time, the standard synchronisation force value increase.
Further, it when calculating the simultaneous force desired value, can be obtained by the following formula：
Simultaneous force desired value=(initial synchronisation power+simultaneous force change rate * current syncs timing time) * enhancement coefficients；
To realize the control to simultaneous force desired value using the control mode of linear increment.
In another specific embodiment, when vehicle is in each gear, the standard synchronisation force value could be provided as fixed
Value, as non-limitative example, the standard synchronisation force value can be selected from 20N to 500N, it is preferable that can be 100N.
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 computer readable storage medium, to store
Medium can 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 (13)
1. a kind of synchronisation control means of synchronizer, which is characterized in that include the following steps：
The synchronous regime of the synchronizer is received in gear shift；
If the synchronous regime of the synchronizer shows that the synchronizer is synchronized to first object gear with the first standard synchronisation force value
Synchronization time be more than default waiting time, then the synchronizer is controlled to be retried synchronization at least once, retries synchronization every time
The simultaneous force desired value used is gradually increased on the basis of the first standard synchronisation force value.
2. the synchronisation control means of synchronizer according to claim 1, which is characterized in that when retrying synchronous every time, control
The synchronizer is synchronized to the first object gear using the simultaneous force desired value,
Until synchronize successfully or synchronization time be more than the default waiting time.
3. the synchronisation control means of synchronizer according to claim 1, which is characterized in that further include：
When it is described retry synchronous number and reach preset times when, the synchronizer is controlled to be synchronized using the second standard synchronisation force value
To the second target gear, the second target gear is different from the first object gear.
4. the synchronisation control means of synchronizer according to claim 1, which is characterized in that the simultaneous force desired value is institute
State the first standard synchronisation force value and the product of enhancement coefficient.
5. the synchronisation control means of synchronizer according to claim 4, which is characterized in that the enhancement coefficient with it is described heavy
The synchronous counting how many times of examination have a correspondence, described to retry that synchronous counting how many times are bigger, and the enhancement coefficient is bigger.
6. the synchronisation control means of synchronizer according to claim 5, which is characterized in that the enhancement coefficient also with it is following
One or more vehicle-states have correspondence：Gear switch state, TOT Transmission Oil Temperature, vehicle mileage；
With the gear switch state for downshift to preset gear when compared with, when the gear switch state is upshift to described pre-
If during gear, the enhancement coefficient bigger；
The TOT Transmission Oil Temperature is lower, and the enhancement coefficient is bigger；
The vehicle mileage is higher, and the enhancement coefficient is bigger.
7. a kind of sync control device of synchronizer, which is characterized in that including：
Receiving module, suitable for receiving the synchronous regime of the synchronizer in gear shift；
First control module, the synchronous regime suitable for working as the synchronizer show that the synchronizer is same with the first standard synchronisation force value
It is more than when presetting waiting time, then the synchronizer to be controlled to be retried at least once to walk to the synchronization time of first object gear
It is synchronous, the synchronous simultaneous force desired value used is retried every time gradually to be increased on the basis of the first standard synchronisation force value.
8. the sync control device of synchronizer according to claim 7, which is characterized in that when retrying synchronous every time, control
The synchronizer is synchronized to the first object gear using the simultaneous force desired value,
Until synchronize successfully or synchronization time be more than the default waiting time.
9. the sync control device of synchronizer according to claim 7, which is characterized in that further include：
Second control module, suitable for when it is described retry synchronous number and reach preset times when, control the synchronizer using the
Two standard synchronisation force value are synchronized to the second target gear, and the second target gear is different from the first object gear.
10. the sync control device of synchronizer according to claim 7, which is characterized in that the simultaneous force desired value is
The product of the first standard synchronisation force value and enhancement coefficient.
11. the sync control device of synchronizer according to claim 10, which is characterized in that the enhancement coefficient with it is described
Synchronous counting how many times are retried with correspondence, it is described to retry that synchronous counting how many times are bigger, and the enhancement coefficient is bigger.
12. the sync control device of synchronizer according to claim 11, which is characterized in that the enhancement coefficient also with
The next item down or multinomial vehicle-state have correspondence：Gear switch state, TOT Transmission Oil Temperature, vehicle mileage；
With the gear switch state for downshift to preset gear when compared with, when the gear switch state is upshift to described pre-
If during gear, the enhancement coefficient bigger；
The TOT Transmission Oil Temperature is lower, and the enhancement coefficient is bigger；
The vehicle mileage is higher, and the enhancement coefficient is bigger.
A kind of 13. automobile, which is characterized in that the Synchronization Control dress including such as claim 7 to 12 any one of them synchronizer
It puts.
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| CN201611096923.7A CN108150639A (en) | 2016-12-02 | 2016-12-02 | Synchronisation control means and device, the automobile of synchronizer |
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| CN201611096923.7A CN108150639A (en) | 2016-12-02 | 2016-12-02 | Synchronisation control means and device, the automobile of synchronizer |
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