CN106151501A - The shift control method of automatic transmission, system and vehicle - Google Patents
The shift control method of automatic transmission, system and vehicle Download PDFInfo
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- CN106151501A CN106151501A CN201510143596.5A CN201510143596A CN106151501A CN 106151501 A CN106151501 A CN 106151501A CN 201510143596 A CN201510143596 A CN 201510143596A CN 106151501 A CN106151501 A CN 106151501A
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Abstract
The invention provides the shift control method of a kind of automatic transmission, system and vehicle, described method includes: in shift process, controls selector fork and moves with target velocity；The rotating speed of regulation lock unit, when reaching rotating speed of target difference with the speed discrepancy between the rotating speed of lock unit and the rotating speed of soldered tooth, when control lock unit and soldered tooth carry out synchronizing until the rotating speed of the rotating speed of lock unit and soldered tooth is equal, complete the synchronization of lock unit and soldered tooth；Control selector fork to move with target velocity；When the rotating speed of lock unit and soldered tooth rotating speed not etc. time, control lock unit and engaged with soldered tooth to shift gears.The method of the present invention, has shift process smooth-going, the advantage improving shift quality.
Description
Technical field
The present invention relates to automobile technical field, particularly to shift control method, system and the vehicle of a kind of automatic transmission.
Background technology
For automatic transmission, selector fork (shift fork) control strategy directly affects the longevity of smooth gear shifting and associated mechanical components
Life.In shift process, the phenomenon of shift shock easily occurs, especially synchronously complete rear clutch collar to engaging what gear ring moved
During.This be owing to synchronously completing after, shift fork power is excessive causes that shift fork translational speed is too fast causes " percussion " sound, causes gearshift
Impact.If but shift fork power is too small, clutch collar may be caused can not to stir synchronous ring or synchronous condition is destroyed and cannot complete to change
Gear.
In correlation technique, shift process is divided into 3 stages, synchronizes last stage, synchronous phase and synchronization after-stage.Each
In the individual stage, by the position signalling of shift fork position sensor detection shift fork, then feed back to automatic gear-box control unit TCU
(Transmission Control Unit), is controlled shift fork according to the gear shifting force of default different shift fork positions, completes gearshift.
At synchronous phase, owing to not accounting for shift fork invariant position when synchronizing, shift fork power is a steady state value, adds gearshift
Time；After synchronization, clutch collar is not accounted for the speed engaged when gear ring moves, the problem that shift shock easily occurs.
Summary of the invention
In view of this, it is contemplated that propose the shift control method of a kind of automatic transmission, the method has shift process smooth-going,
The advantage improving shift quality.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
The shift control method of a kind of automatic transmission, comprises the following steps: S1: in shift process, when the position of selector fork
Setting in time between neutral gear position and sync bit, control described selector fork and move with target velocity；S2: regulation lock unit
Rotating speed, when reaching rotating speed of target difference with the speed discrepancy between the rotating speed of described lock unit and the rotating speed of soldered tooth, controls described same
When step device and soldered tooth carry out synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete described lock unit and connect
Close the synchronization of tooth；S3: when the position of described selector fork is between described sync bit and primary importance, changes described in control
Gear shift fork moves with described target velocity, and wherein, described primary importance is clutch collar and soldered tooth contact position；S4: when described
The rotating speed of lock unit and the rotating speed of soldered tooth not etc. time, control described lock unit and engaged gearshift with soldered tooth.
Further, described S1 farther includes: detect the position of described selector fork；Utilize the displacement of described selector fork
Time differential obtains the actual translational speed of described selector fork；Judge that whether etc. the actual translational speed of described selector fork
In described target velocity；If it is not, then make the actual movement of described selector fork by regulating the pressure that performs of described selector fork
Speed is equal to described target velocity.
Further, described S2 farther includes: obtain the rotating speed of described lock unit and the rotating speed of soldered tooth；Calculate described same
Speed discrepancy between rotating speed and the rotating speed of soldered tooth of step device；Judge turning between rotating speed and the rotating speed of soldered tooth of described lock unit
Speed difference is the poorest equal to described rotating speed of target；If it is not, then by the execution pressure regulating described lock unit, so that described synchronization
It is poor that speed discrepancy between rotating speed and the rotating speed of soldered tooth of device meets described rotating speed of target；Control described lock unit and soldered tooth is carried out
When synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete the synchronization of described lock unit and soldered tooth.
Further, described S4 farther includes: when the rotating speed and soldered tooth described lock unit being detected rotating speed not etc. time,
Increase the execution pressure of described selector fork, with control described lock unit with soldered tooth smoothly engaged gearshift.
Further, described target velocity and described rotating speed of target difference are determined by empirical value.
Relative to prior art, the shift control method of automatic transmission of the present invention has the advantage that
The shift control method of automatic transmission of the present invention, by the control to selector fork translational speed, can avoid
The shock sound occurred in shift process, it is to avoid clutch collar and the shock engaging gear ring, extends its service life, by synchronization
Speed discrepancy between rotating speed and the rotating speed of soldered tooth of device is controlled, and effectively reduces the abrasion of lock unit, extends making of lock unit
Use the life-span.The method has shift process smooth-going, the advantage improving shift quality.
Another object of the present invention is to propose the shifting control system of a kind of automatic transmission, the gearshift of this automatic transmission controls
System has shift process smooth-going, the advantage improving shift quality.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of shifting control system of automatic transmission, including: control module, in shift process, when selector fork
When position is between neutral gear position and sync bit, controls described selector fork and move with target velocity, and when described gearshift is dialled
When the position of fork is between described sync bit and primary importance, controls described selector fork and move with described target velocity, its
In, described primary importance is clutch collar and soldered tooth contact position；Synchronization module, for regulating the rotating speed of lock unit, with in institute
State the speed discrepancy between the rotating speed of lock unit and the rotating speed of soldered tooth when reaching rotating speed of target difference, control described lock unit and soldered tooth
When carrying out synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete the synchronization of described lock unit and soldered tooth；
Splice module, for when the rotating speed of described lock unit and soldered tooth rotating speed not etc. time, control described lock unit and engage with soldered tooth
To complete gearshift.
Further, described control module is used for: detect the position of described selector fork；Utilize the displacement pair of described selector fork
The differential of time obtains the actual translational speed of described selector fork；Judge whether the actual translational speed of described selector fork is equal to
Described target velocity；If it is not, then make the actual mobile speed of described selector fork by regulating the pressure that performs of described selector fork
Degree is equal to described target velocity.
Further, described synchronization module is used for: obtain the rotating speed of described lock unit and the rotating speed of soldered tooth；Calculate described synchronization
Speed discrepancy between rotating speed and the rotating speed of soldered tooth of device；Judge the rotating speed between rotating speed and the rotating speed of soldered tooth of described lock unit
Difference is the poorest equal to described rotating speed of target；If it is not, then by the execution pressure regulating described lock unit, so that described lock unit
Rotating speed and the rotating speed of soldered tooth between speed discrepancy to meet described rotating speed of target poor；Control described lock unit and soldered tooth carries out same
When step is until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete the synchronization of described lock unit and soldered tooth.
Further, described splice module is used for: when the rotating speed and soldered tooth described lock unit being detected rotating speed not etc. time, increase
Add the execution pressure of described selector fork, with control described lock unit with soldered tooth smoothly engaged gearshift.
The shift control method of the shifting control system of described automatic transmission and above-mentioned automatic transmission is relative to existing skill
Art have the advantage that is identical, does not repeats them here.
Another object of the present invention is to propose a kind of vehicle, and this vehicle has shift process smooth-going, improves the excellent of shift quality
Point.
For reaching above-mentioned purpose, the technical scheme is that and be achieved in that:
A kind of vehicle, is provided with the shifting control system of automatic transmission as described in above-described embodiment.This vehicle has shifted gears
Cheng Pingshun, the advantage improving shift quality.
Described vehicle is identical relative to prior art have the advantage that with the shifting control system of above-mentioned automatic transmission,
This repeats no more.
Accompanying drawing explanation
The accompanying drawing of the part constituting the present invention is used for providing a further understanding of the present invention, the illustrative examples of the present invention and
Its explanation is used for explaining the present invention, is not intended that inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the flow chart of the shift control method of the automatic transmission described in the embodiment of the present invention；
Fig. 2 is the detail flowchart of the shift control method of the automatic transmission described in the embodiment of the present invention；And
Fig. 3 is the structured flowchart of the shifting control system of the automatic transmission described in the embodiment of the present invention.
Description of reference numerals:
The shifting control system of 300-automatic transmission, 310-control module, 320-synchronization module and 330-splice module.
Detailed description of the invention
It should be noted that in the case of not conflicting, the embodiment in the present invention and the feature in embodiment can be mutually combined.
Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
Fig. 1 is the flow chart of the shift control method of automatic transmission according to an embodiment of the invention.
As it is shown in figure 1, the shift control method of automatic transmission according to an embodiment of the invention, comprise the following steps:
Step S101: in shift process, when the position of selector fork is between neutral gear position X1 and sync bit X2,
Control selector fork to move with target velocity.In one embodiment of the invention, the position of selector fork can be by position sensing
Device collects.
Specifically, as in figure 2 it is shown, step S101 specifically includes:
1, the position of selector fork is detected, such as: collected the position of selector fork by position sensor.
2, the differential utilizing the displacement versus time of selector fork obtains actual translational speed V of selector fork.Time i.e. according to difference
Inscribe the position of selector fork, the displacement of selector fork in certain time can be calculated, then, utilize the displacement of selector fork
Time is carried out differential, actual translational speed V of selector fork can be obtained.In order to make the actual shifting of the selector fork got
Dynamic speed V is the most accurate, when obtaining actual translational speed V of selector fork, can be filtered processing to it.
It is of course also possible to changed according to two positions descending selector fork the most in the same time and the two time difference the most in the same time
Actual translational speed V of gear shift fork.As in figure 2 it is shown, detection selector fork (abbreviation shift fork) upper moment and current time
Position signalling, and calculate actual translational speed V of difference and selector fork.
3, judge that whether actual translational speed V of selector fork is equal to target velocity V0.
Target velocity V0 is the speed demarcated in advance, can be saved in automatic gear-box control unit TCU
In (Transmission Control Unit), target velocity V0 can empirically determined (i.e. empirical value) or lead in advance
The mode of overtesting obtains, and target velocity V0 represents a relatively reasonably translational speed, controls selector fork with this mesh
When mark speed V0 moves, selector fork can be prevented effectively from and with associated components, relatively large shock occurs, it is to avoid shift process
The shock sound of middle appearance.
4 if it is not, then make actual translational speed V of selector fork equal to target speed by the pressure that performs of regulation selector fork
Degree V0.
Such as: regulation gear performs the electric current of valve, thus regulates the execution pressure of selector fork, controls the actual shifting of selector fork
Dynamic speed V reaches target velocity V0.
Step S102: the rotating speed of regulation lock unit, reaches with the speed discrepancy between the rotating speed of lock unit and the rotating speed of soldered tooth
During rotating speed of target difference, when control lock unit and soldered tooth carry out synchronizing until the rotating speed of the rotating speed of lock unit and soldered tooth is equal, complete
Become lock unit and the synchronization of soldered tooth.
Specifically, shown in Fig. 2, comprise the following steps:
1, the rotating speed n1 and the rotating speed n2 of soldered tooth of lock unit are obtained.I.e. detect the rotating speed n1 of lock unit, calculate soldered tooth
Rotating speed n2.It should be noted that the rotating speed n2 of the rotating speed n1 of lock unit and soldered tooth can calculate according to existing various ways
Arrive, belong to prior art, do not repeat.
2, the speed discrepancy △ n between the rotating speed n1 and the rotating speed n2 of soldered tooth of lock unit, wherein, △ n=n1-n2 are calculated.
3, judge that whether the speed discrepancy △ n between the rotating speed n1 of lock unit and the rotating speed n2 of soldered tooth is equal to rotating speed of target difference n0.
Wherein, rotating speed of target difference n0 is a value demarcated in advance, can be saved in change automatically and exclusively enjoy control unit TCU
In (Transmission Control Unit), rotating speed of target difference n0 can empirically determined (i.e. empirical value) or lead in advance
The mode of overtesting obtains, and rotating speed of target difference n0 represents a relatively reasonably difference, as the rotating speed n1 of lock unit with connect
The speed discrepancy △ n closed between the rotating speed n2 of tooth synchronizes equal to after rotating speed of target difference n0, can effectively reduce lock unit
Abrasion, plays the purpose in the service life extending lock unit.
4 if it is not, then by the execution pressure regulating lock unit, so that the rotating speed n1 of lock unit and the rotating speed n2 of soldered tooth
Between speed discrepancy meet rotating speed of target difference n0.Such as: the electric current of electromagnetic valve for adjusting, thus change the execution pressure of lock unit,
And then the speed discrepancy △ n controlled between soldered tooth and lock unit reaches rotating speed of target difference n0.
5, when control lock unit and soldered tooth carry out synchronizing until the rotating speed n2 of the rotating speed n1 of lock unit and soldered tooth is equal, complete
Become lock unit and the synchronization of soldered tooth.Speed discrepancy △ n between the i.e. rotating speed n1 and the rotating speed n2 of soldered tooth of lock unit is equal to zero
Time, complete to synchronize.
Step S103: when the position of selector fork is between sync bit X2 and primary importance X3, controls selector fork
Moving with target velocity V0, wherein, primary importance X3 is clutch collar and soldered tooth contact position.Such as set electromagnetic valve
Electric current I0 regulates shift fork pressure P0, controls lock unit and moves with speed V.Control selector fork to move with target velocity V0
The process that dynamic process moves with target velocity V0 with control selector fork in step S101 is similar, in order to reduce redundancy, herein
Do not repeat.
Step S104: when the rotating speed of lock unit and soldered tooth rotating speed not etc. time, control lock unit and engaged with soldered tooth
Gearshift.That is: after completing to synchronize, further when the rotating speed n2 of the rotating speed n1 of lock unit and soldered tooth does not waits, synchronization is controlled
Device has engaged gearshift with soldered tooth.
Specifically, shown in Figure 2, including: when the rotating speed n1 and soldered tooth lock unit being detected rotating speed n2 not etc. time,
Increase the execution pressure (as schemed the electromagnetic valve current I1 > I0 set, perform pressure P1 more than P0) of selector fork, same to control
Step device has engaged gearshift smoothly with soldered tooth.It should be noted that the execution pressure being supplied to selector fork here should be big
In step S103, it is supplied to the execution pressure of selector fork, thereby may be ensured that lock unit engages smoothly with soldered tooth and completes
Whole shift process.
Wherein, step S101, step S102, step S103 and step S104 can be understood as automatic transmission gear shift process
Four-stage, it may be assumed that the first stage is to fourth stage.When selector fork position is between neutral gear position X1 and sync bit X2
Between time, shift process is in the first stage；Second stage divides with lock unit rotating speed and soldered tooth speed discrepancy, works as rotating speed
During difference △ n > 0, lock unit engages and is in second stage；When shift fork position is between sync bit X2 and clutch collar and joint toe joint
When touching position X3, it is in the phase III；When detecting that △ n is not equal to 0, enter the control of fourth stage.
The shift control method of automatic transmission according to embodiments of the present invention, by the control to selector fork translational speed, can
To avoid the shock sound occurred in shift process, it is to avoid clutch collar and the shock engaging gear ring, extend its service life, pass through
Speed discrepancy between rotating speed and the rotating speed of soldered tooth of lock unit is controlled, effectively reduces the abrasion of lock unit, extend and synchronize
The service life of device.The method has shift process smooth-going, the advantage improving shift quality.
Fig. 3 is the structured flowchart of the shifting control system of automatic transmission according to an embodiment of the invention.As it is shown on figure 3,
The shifting control system 300 of automatic transmission according to an embodiment of the invention, including: control module 310, synchronization module
320 and splice module 330.
Wherein, control module 310 in shift process, when the position of selector fork be positioned at neutral gear position and sync bit it
Between time, control selector fork and move with target velocity, and when the position of selector fork is between sync bit and primary importance,
Controlling selector fork to move with target velocity, wherein, primary importance is clutch collar and soldered tooth contact position.Synchronization module 320
For regulating the rotating speed of lock unit, reach rotating speed of target with the speed discrepancy between the rotating speed of lock unit and the rotating speed of soldered tooth poor
Time, control lock unit and soldered tooth when carrying out synchronizing until the rotating speed of the rotating speed of lock unit and soldered tooth is equal, complete lock unit and
The synchronization of soldered tooth.Splice module 330 for when the rotating speed of lock unit and the rotating speed of soldered tooth do not wait, control lock unit and connecing
Close indented joint to complete gearshift.
In one embodiment of the invention, control module 310 is used for: the position of detection selector fork；Utilize selector fork
The differential of displacement versus time obtains the actual translational speed of selector fork；Judge that whether the actual translational speed of selector fork is equal to mesh
Mark speed；If it is not, then make the actual translational speed of selector fork equal to target velocity by the pressure that performs of regulation selector fork.
In one embodiment of the invention, synchronization module 320 is used for: obtain rotating speed and the rotating speed of soldered tooth of lock unit；Meter
Calculate the speed discrepancy between rotating speed and the rotating speed of soldered tooth of lock unit；Judge turning between the rotating speed of lock unit and the rotating speed of soldered tooth
Speed difference is the poorest equal to rotating speed of target；If it is not, then by the execution pressure regulating lock unit, so that the rotating speed of lock unit and connecing
It is poor that speed discrepancy between the rotating speed of conjunction tooth meets rotating speed of target；Control lock unit and soldered tooth carries out synchronizing until the rotating speed of lock unit
Time equal with the rotating speed of soldered tooth, complete the synchronization of lock unit and soldered tooth.
In one embodiment of the invention, splice module 330 is used for: when the rotating speed of the rotating speed and soldered tooth lock unit being detected
Not wait time, increase selector fork execution pressure, with control lock unit with soldered tooth smoothly engaged shift gears.
The shifting control system of automatic transmission according to embodiments of the present invention, by the control to selector fork translational speed, can
To avoid the shock sound occurred in shift process, it is to avoid clutch collar and the shock engaging gear ring, extend its service life, pass through
Speed discrepancy between rotating speed and the rotating speed of soldered tooth of lock unit is controlled, effectively reduces the abrasion of lock unit, extend and synchronize
The service life of device.This system has shift process smooth-going, the advantage improving shift quality.
It should be noted that the specific implementation of the shifting control system of the automatic transmission of the embodiment of the present invention is real with the present invention
The specific implementation of the shift control method executing the automatic transmission of example is similar to, and specifically refers to the description of method part, in order to
Reduce redundancy, do not repeat.
Further, embodiment of the invention discloses that a kind of vehicle, this vehicle is provided with the fluid drive described in above-described embodiment
The shifting control system of device.This vehicle has shift process smooth-going, the advantage improving shift quality.
It addition, other of vehicle according to embodiments of the present invention constitutes and acts on the most all
It is known, in order to reduce redundancy, does not repeats.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all spirit in the present invention and former
Within then, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. the shift control method of an automatic transmission, it is characterised in that comprise the following steps:
S1: in shift process, when the position of selector fork is between neutral gear position and sync bit, controls described gearshift
Shift fork moves with target velocity；
S2: the rotating speed of regulation lock unit, reaches target with the speed discrepancy between the rotating speed of described lock unit and the rotating speed of soldered tooth
During speed discrepancy, control described lock unit and soldered tooth carries out synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal
Time, complete the synchronization of described lock unit and soldered tooth；
S3: when the position of described selector fork is between described sync bit and primary importance, control described selector fork with
Described target velocity moves, and wherein, described primary importance is clutch collar and soldered tooth contact position；
S4: when the rotating speed of described lock unit and soldered tooth rotating speed not etc. time, control described lock unit and engaged with soldered tooth
Gearshift.
The shift control method of automatic transmission the most according to claim 1, it is characterised in that described S1 wraps further
Include:
Detect the position of described selector fork；
The differential utilizing the displacement versus time of described selector fork obtains the actual translational speed of described selector fork；
Judge that whether the actual translational speed of described selector fork is equal to described target velocity；
If it is not, then make the actual translational speed of described selector fork equal to described by regulating the pressure that performs of described selector fork
Target velocity.
The shift control method of automatic transmission the most according to claim 1, it is characterised in that described S2 wraps further
Include:
Obtain the rotating speed of described lock unit and the rotating speed of soldered tooth；
Calculate the speed discrepancy between rotating speed and the rotating speed of soldered tooth of described lock unit；
Judge that the speed discrepancy between rotating speed and the rotating speed of soldered tooth of described lock unit is the poorest equal to described rotating speed of target；
If it is not, then by regulate described lock unit execution pressure so that the rotating speed of the rotating speed of described lock unit and soldered tooth it
Between speed discrepancy to meet described rotating speed of target poor；
Control described lock unit and time soldered tooth carries out synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete
Described lock unit and the synchronization of soldered tooth.
The shift control method of automatic transmission the most according to claim 2, it is characterised in that described S4 wraps further
Include:
When the rotating speed and soldered tooth described lock unit being detected rotating speed not etc. time, increase the execution pressure of described selector fork, with
Control described lock unit and engage gearshift with soldered tooth smoothly.
5. according to the shift control method of the automatic transmission described in any one of claim 1-4, it is characterised in that described mesh
Mark speed and described rotating speed of target difference are determined by empirical value.
6. the shifting control system of an automatic transmission, it is characterised in that including:
Control module, in shift process, when the position of selector fork is between neutral gear position and sync bit, control
Make described selector fork to move with target velocity, and when the position of described selector fork be positioned at described sync bit and primary importance it
Between time, control described selector fork and move with described target velocity, wherein, described primary importance is that clutch collar contacts with soldered tooth
Position；
Synchronization module, for regulating the rotating speed of lock unit, with the rotating speed between the rotating speed and the rotating speed of soldered tooth of described lock unit
Difference is when reaching rotating speed of target difference, controls described lock unit and soldered tooth carries out synchronizing until the rotating speed of described lock unit and soldered tooth
When rotating speed is equal, complete the synchronization of described lock unit and soldered tooth；
Splice module, for when the rotating speed of described lock unit and soldered tooth rotating speed not etc. time, control described lock unit and soldered tooth
Engage to complete gearshift.
The shifting control system of automatic transmission the most according to claim 6, it is characterised in that described control module is used
In:
Detect the position of described selector fork；
The differential utilizing the displacement versus time of described selector fork obtains the actual translational speed of described selector fork；
Judge that whether the actual translational speed of described selector fork is equal to described target velocity；
If it is not, then make the actual translational speed of described selector fork equal to described by regulating the pressure that performs of described selector fork
Target velocity.
The shifting control system of automatic transmission the most according to claim 6, it is characterised in that described synchronization module is used
In:
Obtain the rotating speed of described lock unit and the rotating speed of soldered tooth；
Calculate the speed discrepancy between rotating speed and the rotating speed of soldered tooth of described lock unit；
Judge that the speed discrepancy between rotating speed and the rotating speed of soldered tooth of described lock unit is the poorest equal to described rotating speed of target；
If it is not, then by regulate described lock unit execution pressure so that the rotating speed of the rotating speed of described lock unit and soldered tooth it
Between speed discrepancy to meet described rotating speed of target poor；
Control described lock unit and time soldered tooth carries out synchronizing until the rotating speed of the rotating speed of described lock unit and soldered tooth is equal, complete
Described lock unit and the synchronization of soldered tooth.
The shifting control system of automatic transmission the most according to claim 7, it is characterised in that described splice module is used
In:
When the rotating speed and soldered tooth described lock unit being detected rotating speed not etc. time, increase the execution pressure of described selector fork, with
Control described lock unit and engage gearshift with soldered tooth smoothly.
10. a vehicle, it is characterised in that the gearshift control just like the automatic transmission described in any one of claim 6-9 is set
System processed.
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| CN201510143596.5A CN106151501B (en) | 2015-03-30 | 2015-03-30 | Shift control method, system and the vehicle of automatic transmission |
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| CN201510143596.5A CN106151501B (en) | 2015-03-30 | 2015-03-30 | Shift control method, system and the vehicle of automatic transmission |
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| CN106594112A (en) * | 2016-12-16 | 2017-04-26 | 广州汽车集团股份有限公司 | Automatic control method of synchronizer for automatic transmission |
| CN106678354A (en) * | 2017-01-25 | 2017-05-17 | 安徽江淮汽车集团股份有限公司 | Self-adaptive control method and system for position of shifting fork of automatic gearbox |
| CN109386603A (en) * | 2017-08-08 | 2019-02-26 | 大众汽车有限公司 | Method for being protected from the overload of synchronizing device |
| TWI685430B (en) * | 2018-10-29 | 2020-02-21 | 財團法人工業技術研究院 | Electric vehicle tansmission apparatus and method thereof |
| CN110906000A (en) * | 2018-09-17 | 2020-03-24 | 纬湃科技投资(中国)有限公司 | Method for adjusting the fork synchronization position of a transmission and vehicle |
| CN110939731A (en) * | 2019-12-30 | 2020-03-31 | 潍柴动力股份有限公司 | Method and device for adjusting gear engaging distance |
| CN110966395A (en) * | 2018-09-28 | 2020-04-07 | 长城汽车股份有限公司 | Gear shifting control method and device and vehicle |
| CN111102304A (en) * | 2018-10-26 | 2020-05-05 | 上海汽车集团股份有限公司 | Synchronizer synchronization method and device |
| CN112081913A (en) * | 2020-09-14 | 2020-12-15 | 中国一拖集团有限公司 | AMT transmission variable parameter gear shifting process control method |
| CN113404856A (en) * | 2021-06-24 | 2021-09-17 | 东风商用车有限公司 | Real-time monitoring method and monitoring device for service life of commercial vehicle synchronizer |
| CN115076359A (en) * | 2022-08-01 | 2022-09-20 | 一汽解放汽车有限公司 | Gear shifting control method and device, computer equipment and computer program product |
| CN115217967A (en) * | 2021-04-26 | 2022-10-21 | 广州汽车集团股份有限公司 | Automatic transmission synchronizer characteristic point self-learning method and system |
| CN117231737A (en) * | 2023-11-14 | 2023-12-15 | 广汽埃安新能源汽车股份有限公司 | Gear shifting control method and device, electronic equipment and storage medium |
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