CN106895143B - A kind of no synchronizer AMT cycle is put into gear control method - Google Patents
A kind of no synchronizer AMT cycle is put into gear control method Download PDFInfo
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- CN106895143B CN106895143B CN201710180433.3A CN201710180433A CN106895143B CN 106895143 B CN106895143 B CN 106895143B CN 201710180433 A CN201710180433 A CN 201710180433A CN 106895143 B CN106895143 B CN 106895143B
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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
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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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
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- General Engineering & Computer Science (AREA)
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- Control Of Transmission Device (AREA)
Abstract
It puts into gear control method the invention discloses a kind of adjacent gear cycles of no synchronizer AMT, including：It keeps clutch to be in discrete state, is asked compared with low gear if there is being linked into, be then linked into compared with low gear, ask, be then linked into compared with high gear compared with high gear if there is being linked into；Judgement is linked into compared with low gear or is linked into compared with whether high gear succeeds, if being linked into success, has continued to determine whether request of putting into gear；If no success, judges to be linked into compared with low gear or whether be linked into the continuous frequency of failure compared with high gear more than setting times N, if the continuous frequency of failure for being linked into gear is less than N, be linked into compared with low gear, otherwise, pluck neutral gear and keep separation clutch.The present invention can ensure that the impact put into gear is small, success rate of putting into gear is high and duration is strong, and only rely on the signal of AMT itself, carry out cycle and put into gear, and have the characteristics that flexibility is strong, at low cost and be easily achieved.
Description
Technical field
The present invention relates to automatic mechanical transmission AMT control fields, and in particular to a kind of no synchronizer AMT cycle is put into gear
Control method.
Background technology
No synchronizer AMT is installation shift and clutch actuating mechanism on the mechanical gear box of no synchronizer, Neng Goujin
A kind of automatic transmission of row self shifter.As no synchronizer automatic mechanical transmission AMT is in the universal of commercial car field,
An important link of the shift test as exploitation needs the success rate for ensureing to shift gears especially as the gearbox of no synchronizer.
Due to inevitably there is apical tooth in no non-clashing gear set and cause to put into gear failure the phenomenon that, so shift test process
In, it can continuously shift gears, ensure the duration and integrality of test, just put on agenda.For no synchronization
Device gearbox, synchronous rotational speed are unreasonable, it may appear that occur impacting big, apical tooth and can not being linked into, even beat the phenomenon that tooth when shift.
After shift fails, without subsequent treatment measures, test process will be terminated.
Patent document 1 (Publication No. CN104791480A) and patent document 2 (Publication No. CN103697154A) are open
Rotating speed synchronisation control means when shift, synchronous rotational speed are calculated according to speed ??signal, target gear speed ratio, obtain input shaft
Synchronous rotational speed, this synchronous rotational speed is equal with input shaft rotating speed when being linked into target gear, and the method is for asynchronous device
AMT gearboxes when being linked into gear, are easy to happen apical tooth, cause to put into gear unsuccessfully；3 (Publication No. of patent document
CN102507179A the pilot system that ceaselessly increasing gear, downshift act between certain two gear) is disclosed, needs to be related to ECU moulds
Quasi- module communicate with TCU, throttle signal and speed ??signal, realize certain two keep off between recycle and put into gear, however the system complex, realization
Period of getting up is long, of high cost.
Invention content
In view of the above technical problems, the present invention, which provides, a kind of can ensure that the impact of shift is small, shift success rate is high and holds
Continuous property is strong to put into gear control method without the adjacent gear cycles of synchronizer AMT.
The technical solution adopted by the present invention is：
The embodiment of the present invention provides a kind of adjacent gear cycle of no synchronizer AMT and puts into gear control method, including：
S100：It keeps clutch to be in discrete state, and is alternately performed the upshift and downshift of adjacent gear with fixed intervals
Operation；
S200：Request of putting into gear is judged whether there is, if there is request of putting into gear, thens follow the steps S300, otherwise repeatedly step
S200；
S300：Judgement put into gear request be linked into compared with low gear ask or be linked into compared with high gear ask, if it is be linked into compared with
Low gear is asked, and S400 is thened follow the steps, and is asked compared with high gear if it is being linked into, is thened follow the steps S500；
S400：It is linked into compared with low gear, and enters step S600；
S500：It is linked into compared with high gear, and enters step S600；
S600：Judgement is linked into compared with low gear or is linked into compared with whether high gear succeeds, if being linked into success, return to step
S100；If it fails, then entering step S700；
S700：Judge to be linked into compared with low gear or is linked into the continuous frequency of failure compared with high gear whether more than setting times N, such as
Fruit be linked into compared with low gear the continuous frequency of failure be less than N, then return to step S400 otherwise enter step S800；If be linked into compared with
The continuous frequency of failure of high gear is less than N, then otherwise return to step S400 enters step S800；
S800：It plucks neutral gear and keeps separation clutch；
Wherein, be linked into the transmission input shaft for making target gear compared with low gear and during be linked into compared with high gear and
The rotating speed of output shaft keeps synchronizing, the wherein synchronous rotational speed n of the transmission input shaft of target geariWith turning for output shaft of gear-box
Fast n0Between for example following formula (1) of relationship shown in：
ni=n0×ig+nerror (1)
Wherein, niFor the synchronous rotational speed of the transmission input shaft of target gear, unit rpm；n0For output shaft of gear-box
Rotating speed, unit rpm；igFor target gear speed ratio；nerrorPoor, the unit rpm for the target gear gear rotational speed of gearbox.
Optionally, step S400 is specifically included：
S401：Judge whether clutch is discrete state, if being in discrete state, enters step S402；If do not located
In discrete state, S408 is entered step；
S402：Pluck neutral gear；
S403：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enters step S404, such as
Fruit speed changer is not at neutral position state, enters step S408；
S404：Quasi integration clutch keeps the input shaft of gearbox synchronous according to above-mentioned formula (1) progress rotating speed with output shaft,
And block selecting is carried out in rotating speed synchronizing process；
S405：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S406；If synchronization failure,
Enter step S408；
S406：It is linked into compared with low gear while detaching clutch, if being linked into success, S407 is entered step, if be linked into
It is unsuccessful, into S408；
S407：Success status is returned, S600 is entered step；
S408：Status of fail is returned, S600 is entered step.
Optionally, step S500 is specifically included：
S501：Judge whether clutch is discrete state, if being in discrete state, enters step S502；If do not located
In discrete state, S508 is entered step；
S502：Pluck neutral gear；
S503：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enters step S504, such as
Fruit speed changer is not at neutral position state, enters step S508；
S504：Make the input shaft reduction of speed of gearbox until by rotating speed determined by above-mentioned formula (1), with defeated with gearbox
Shaft carries out rotating speed synchronization, and carries out block selecting in the process；
S505：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S506；If synchronization failure,
Enter step S508；
S506：Be linked into compared with high gear, if being linked into success, enter step S507, if be linked into it is unsuccessful, into S508；
S507：Success status is returned, S600 is entered step；
S508：Status of fail is returned, S600 is entered step.
Compared with the prior art, the advantages of the present invention are as follows：Turn the invention is characterized in that being introduced in rotating speed synchronizing process
The measure of speed difference carries out the processing mode of downshift immediately after upshift failure, can ensure that the impact of shift is small, success rate of shifting gears
The high and strong feature of duration, and only rely on the signal of AMT itself, carries out cycle shift, have flexibility it is strong, it is at low cost and
The characteristics of being easily achieved.
Description of the drawings
Fig. 1 is the flow chart of the present invention put into gear without the adjacent gear cycles of synchronizer AMT；
Fig. 2 is the flow chart that more high/low gear is linked into when the adjacent gear cycle of the present invention is put into gear.
Specific implementation mode
To keep the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool
Body embodiment is described in detail.
The adjacent gear cycle of no synchronizer AMT provided by the invention put into gear control method for no synchronizer mechanically from
During the testing experiment of dynamic speed changer AMT, the cycle shift of no synchronizer automatic mechanical transmission AMT is tested,
To carry out long-time durable test to each gear or carry out shift quality performance test.The present invention's is mechanical without synchronizer
The both ends of automatic transmission AMT are connect by inertial flywheel with driving motor.
Fig. 1 is the flow chart of the present invention put into gear without the adjacent gear cycles of synchronizer AMT.As shown in Figure 1, the present invention is implemented
The adjacent gear cycles of a kind of no synchronizer AMT that example provides are put into gear control method, are included the following steps：
S100：It keeps clutch to be in discrete state, and is alternately performed the upshift and downshift of adjacent gear with fixed intervals
Operation；The fixed intervals for executing upshift and downshift are not particularly limited in the present invention, can be determined according to actual conditions,
In the example of the present invention, fixed intervals are more than 2s.
S200：Request of putting into gear is judged whether there is, if there is request of putting into gear, thens follow the steps S300, otherwise repeatedly step
S200.This step is mainly to ensure that is linked into operation execute that the at the time of of putting into gear carries out corresponding gear, for example, with 5s to put into gear
In the case of period, at the 3s moment, due to being not carried out operation of putting into gear, then operation of putting into gear is continued waiting for, when 5s, due to
It needs to execute operation of putting into gear, then needs to be linked into corresponding gear at this time.Generally, in operation of putting into gear, it is drop to be initially linked into gear
Gear operation.
S300：Judgement put into gear request be linked into compared with low gear ask or be linked into compared with high gear ask, if it is be linked into compared with
Low gear is asked, and S400 is thened follow the steps, and is asked compared with high gear if it is being linked into, is thened follow the steps S500；
S400：It is linked into compared with low gear, and enters step S600；
S500：It is linked into compared with high gear, and enters step S600；
S600：Judgement is linked into compared with low gear or is linked into compared with whether high gear succeeds, if being linked into success, return to step
S100；If no success, enters step S700；
S700：Judge to be linked into compared with low gear or is linked into the continuous frequency of failure compared with high gear whether more than setting times N, such as
Fruit be linked into compared with low gear the continuous frequency of failure be less than N, then return to step S400 otherwise enter step S800；If be linked into compared with
The continuous frequency of failure of high gear is less than N, then otherwise return to step S400 enters step S800；
S800：It plucks neutral gear and keeps separation clutch；
Wherein, during being linked into compared with low gear and being linked into compared with high gear, need to make the gearbox of target gear to input
Axis is synchronous with the holding of the rotating speed of output shaft, wherein the synchronous rotational speed n of the transmission input shaft of target geariWith output shaft of gear-box
Rotating speed n0Between for example following formula (1) of relationship shown in：
ni=n0×ig+nerror (1)
Wherein, niFor the synchronous rotational speed of the transmission input shaft of target gear, unit rpm；n0For output shaft of gear-box
Rotating speed, unit rpm；igIt is fixed value for specific vehicle for target gear speed ratio；nerrorFor the targeted gear of gearbox
Position gear rotational speed it is poor, unit rpm, value can by experiment obtain, the present invention an example in, for enable gear by
It is easily linked into, nerrorDesirable 150rpm.
In the present invention, being linked into the setting times N of the continuous frequency of failure of gear can be configured according to experiment, non-one
It is 3 in restrictive example.Relatively low gear in the present invention and compared with high gear be opposite gearbox current shift for, example
Such as, current shift is that 3 gears are known as being linked into compared with high gear if request is linked into 4 gears, if request is linked into 2 gears, is known as hanging
Enter compared with low gear.
Below with reference to Fig. 2 being linked into compared with low gear and being specifically described compared with the method for high gear to the present invention.
As shown in Fig. 2, when being linked into compared with low gear, the process of being linked into may include following steps：
S401：Judge whether clutch is discrete state, if being in discrete state, enters step S402；If do not located
In discrete state, S408 is entered step；
S402：Pluck neutral gear；
S403：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enters step S404, such as
Fruit speed changer is not at neutral position state, enters step S408；
S404：Quasi integration clutch keeps the input shaft of gearbox synchronous with output shaft progress rotating speed, specifically, passes through half hitch
Clutch is closed, the input shaft raising speed of gearbox is driven by the constant speed motor of clutch front end, when the input shaft rotating speed of gearbox
When reaching rotating speed determined by above-mentioned formula (1), as synchronizing process is completed；And block selecting is carried out in rotating speed synchronizing process, lead to
It crosses the actuator finger that will put into gear to be moved to target gear and put into gear groove location, carries out block selecting；
S405：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S406；It is lost if rotating speed synchronizes
It loses, then enters step S408；
S406：It is linked into compared with low gear while detaching clutch, if being linked into success, S407 is entered step, if be linked into
It is unsuccessful, into S408；
S407：Success status is returned, S600 is entered step；
S408：Status of fail is returned, S600 is entered step.
As shown in Fig. 2, when being linked into compared with high gear, the process of being linked into may include following steps：
S501：Judge whether clutch is discrete state, if being in discrete state, enters step S502；If do not located
In discrete state, S508 is entered step；
S502：Pluck neutral gear；
S503：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enters step S504, such as
Fruit speed changer is not at neutral position state, enters step S508；
S504：Make the input shaft reduction of speed of gearbox with synchronous with output shaft of gear-box progress rotating speed, specifically, by taking
After neutral gear, input shaft rotating speed carries out reduction of speed under the action of inertia, turns determined by above-mentioned formula (1) when input shaft rotating speed reaches
When fast, as synchronizing process is completed；And carry out block selecting in the process, by actuator will put into gear finger be moved to target gear hang
Retaining groove position carries out block selecting；
S505：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S506；It is lost if rotating speed synchronizes
It loses, then enters step S508；
S506：Be linked into compared with high gear, if being linked into success, enter step S507, if be linked into it is unsuccessful, into S508；
S507：Success status is returned, S600 is entered step；
S508：Status of fail is returned, S600 is entered step.
In addition, the present invention is during execution is linked into low gear and high gear, due to being needed when being linked into compared with low gear
Half hitch clutch, therefore also need to input constant rotational speed in clutch input and output shaft of gear-box end, i.e., it is required that AMT
The rotating speed of the driving motor at both ends keeps synchronizing, and enables to successfully be linked into low gear, clutch input and gearbox
Shown in for example following formula (2) of relationship between the rotating speed of output shaft end：
ni'=n0′×i′g+ne′rror (2)
Wherein, ni' be clutch input synchronous rotational speed, unit rpm；n0' be output shaft of gear-box rotating speed, it is single
Position is rpm, due to the invariablenes turning speed of output shaft, n0' with above-mentioned formula (1) in n0It is identical；i′gFor turning compared with low gear
Speed ratio is fixed value for specific vehicle；n′errorFor the rotating speed of the rotating speed and output shaft of gear-box end of clutch input
Between speed discrepancy, unit rpm, value can by experiment obtain, the present invention an example in, for enable gear by
It is easily linked into, nerrorDesirable 150rpm.
To sum up, the adjacent gears of no synchronizer AMT provided by the invention recycle control method of putting into gear and pass through in shift process
So that the input shaft of the gearbox of target gear and the rotating speed of output shaft be maintained synchronized to it is stable be linked into gear, and take
The measure that speed discrepancy is introduced in rotating speed synchronizing process carries out the processing mode of downshift after upshift failure, can ensure to change immediately
The feature that impacting for gear is small, shift success rate is high and duration is strong, and the signal of AMT itself is only relied on, cycle shift is carried out,
Have the characteristics that flexibility is strong, at low cost and be easily achieved.
The above is the preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, several improvements and modifications can also be made, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (3)
- The control method 1. a kind of adjacent gear cycle of no synchronizer AMT is put into gear, which is characterized in that including：S100：It keeps clutch to be in discrete state, and is alternately performed upshift and the downshift operation of adjacent gear with fixed intervals；S200：Request of putting into gear is judged whether there is, if there is request of putting into gear, thens follow the steps S300, otherwise repeatedly step S200；S300：Judgement request of putting into gear is linked into ask or be linked into compared with low gear and is asked compared with high gear, if it is being linked into compared with low gear Position request, thens follow the steps S400, is asked compared with high gear if it is being linked into, thens follow the steps S500；S400：It is linked into compared with low gear, and enters step S600；S500：It is linked into compared with high gear, and enters step S600；S600：Judgement is linked into compared with low gear or is linked into compared with whether high gear succeeds, if being linked into success, return to step S100；Such as Fruit fails, then enters step S700；S700：Judge to be linked into compared with low gear or is linked into the continuous frequency of failure compared with high gear whether more than setting times N, if hung The continuous frequency of failure entered compared with low gear is less than N, then otherwise return to step S400 enters step S800；If be linked into compared with high gear The continuous frequency of failure of position is less than N, then otherwise return to step S400 enters step S800；S800：It plucks neutral gear and keeps separation clutch；Wherein, during being linked into compared with low gear and being linked into compared with high gear, make transmission input shaft and the output of target gear The rotating speed of axis keeps synchronizing, the wherein synchronous rotational speed n of the transmission input shaft of target geariWith the rotating speed n of output shaft of gear-box0 Between for example following formula (1) of relationship shown in：ni=n0×ig+nerror (1)Wherein, niFor the synchronous rotational speed of the transmission input shaft of target gear, unit rpm；n0For turning for output shaft of gear-box Speed, unit rpm；igFor target gear speed ratio；nerrorPoor, the unit rpm for the target gear gear rotational speed of gearbox.
- The control method 2. the adjacent gear cycle of no synchronizer AMT according to claim 1 is put into gear, which is characterized in that step S400 is specifically included：S401：Judge whether clutch is discrete state, if being in discrete state, enters step S402；If be not at point From state, S408 is entered step；S402：Pluck neutral gear；S403：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enter step S404, if become Fast device is not at neutral position state, enters step S408；S404：Quasi integration clutch keeps the input shaft of gearbox synchronous according to above-mentioned formula (1) progress rotating speed with output shaft, and Block selecting is carried out in rotating speed synchronizing process；S405：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S406；If synchronization failure enters Step S408；S406：It is linked into compared with low gear while detaching clutch, if being linked into success, S407 is entered step, if can not be linked into Work(, into S408；S407：Success status is returned, S600 is entered step；S408：Status of fail is returned, S600 is entered step.
- The control method 3. the adjacent gear cycle of no synchronizer AMT according to claim 1 is put into gear, which is characterized in that step S500 is specifically included：S501：Judge whether clutch is discrete state, if being in discrete state, enters step S502；If be not at point From state, S508 is entered step；S502：Pluck neutral gear；S503：Judge whether speed changer is neutral position state, if speed changer is in neutral position state, enter step S504, if become Fast device is not at neutral position state, enters step S508；S504：Make the input shaft reduction of speed of gearbox until by rotating speed determined by above-mentioned formula (1), with output shaft of gear-box Rotating speed synchronization is carried out, and carries out block selecting in the process；S505：Judge whether rotating speed synchronizes success, if synchronizing success, enters step S506；If synchronization failure enters Step S508；S506：Be linked into compared with high gear, if being linked into success, enter step S507, if be linked into it is unsuccessful, into S508；S507：Success status is returned, S600 is entered step；S508：Status of fail is returned, S600 is entered step.
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| CN201710180433.3A CN106895143B (en) | 2017-03-23 | 2017-03-23 | A kind of no synchronizer AMT cycle is put into gear control method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2019218123A1 (en) * | 2018-05-14 | 2019-11-21 | 舍弗勒技术股份两合公司 | Gear shift control method and device for automatic transmission, automatic transmission, and power system for vehicle |
| CN109185450A (en) * | 2018-08-29 | 2019-01-11 | 汽解放汽车有限公司 | A kind of automatic mechanical transmission shift fault handling method |
| CN109707841B (en) * | 2019-01-03 | 2020-07-28 | 海马汽车有限公司 | Fault clearing method and device |
| CN110131403A (en) * | 2019-04-15 | 2019-08-16 | 汉腾汽车有限公司 | A kind of AMT gearbox shifting control method |
| CN110281860B (en) * | 2019-06-29 | 2021-11-19 | 潍柴动力股份有限公司 | Control method and system of gear shifting motor |
| CN110645351B (en) * | 2019-09-26 | 2021-05-18 | 潍柴动力股份有限公司 | Gear shifting control method and device |
| CN112360970B (en) * | 2020-11-24 | 2022-03-25 | 一汽解放汽车有限公司 | Static gear-engaging self-adaption method without synchronizer |
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| CN106895143A (en) | 2017-06-27 |
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