CN108150640A - Automatic transmission slides downshift control method, device and vehicle - Google Patents
Automatic transmission slides downshift control method, device and vehicle Download PDFInfo
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- CN108150640A CN108150640A CN201611111142.0A CN201611111142A CN108150640A CN 108150640 A CN108150640 A CN 108150640A CN 201611111142 A CN201611111142 A CN 201611111142A CN 108150640 A CN108150640 A CN 108150640A
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- synchronizer
- synchronous
- thrust
- downshift control
- point
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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
- F16H61/02—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 characterised by the signals used
- F16H61/0202—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 characterised by the signals used the signals being electric
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
A kind of automatic transmission slides downshift control method, device and vehicle, and the downshift control method that slides of automatic transmission includes：When synchronous phase starts, the first thrust is applied to synchronizer, so that the synchronizer is advanced into synchronous point；First thrust is cancelled, so that the synchronizer eliminates speed difference by friction；Second thrust is applied to the synchronizer, until the synchronizer reaches synchronous end point.Technical solution of the present invention realizes smooth-going downshift of the vehicle during downshift is slided.
Description
Technical field
Downshift control method, device are slided the present invention relates to automation field more particularly to a kind of automatic transmission
And vehicle.
Background technology
Automatic transmission type is more at present, and for the mechanical gear box shifted gears by synchronizer, synchronizer moves
Flowing mode is generally controlled by the way of " fast-slow-fast ", that is, synchronize before starting with it is synchronous after quickly to move as mesh
, accelerate synchronizer as possible and move speed；And in synchronizing process then for the purpose of smooth-going, that slows down synchronizer moves speed.
On vehicle generally using first reduce pressure then gradually increased mode controlled, with reach slow down move speed and smoothly
Complete the purpose of synchronizing process.
In the prior art, popularizing with new-energy automobile, automatic mechanical transmission has increasingly been used for new energy
Source automotive field.When sliding downshift, the synchronizing process of synchronizer is realized mainly by certain simultaneous force is applied to synchronous ring
Synchronization between power source and target gear tooth, that is, the friction that speed discrepancy when shifting gears between gear is mainly generated by synchronous ring
Power smoothly completes to eliminate in order to ensure to shift gears, and needs to ensure certain frictional force, then simultaneous force cannot be too small.
But when synchronizing control using above-mentioned control mode, synchronously completing in a flash, as produced by simultaneous force
Moment of friction can suddenly disappear, similar to torque step；Since the moment of friction that simultaneous force generates is very big, so as to cause to input
Rotating speed fluctuates, this fluctuation can be transferred to output shaft of gear-box and wheel through meshing gear, vehicle is caused to shake.Especially sliding
During downshift, driver perceives shake more apparent so that sliding the comfort of downshift reduces, poor user experience.
Invention content
Present invention solves the technical problem that it is the smooth-going downshift for how realizing vehicle during downshift is slided.
In order to solve the above technical problems, a kind of dynamic speed changer of offer of the embodiment of the present invention slides downshift control method, move
The downshift control method that slides of speed changer includes：
When synchronous phase starts, the first thrust is applied to synchronizer, so that the synchronizer is advanced into synchronous point；Revocation
First thrust, so that the synchronizer eliminates speed difference by friction；Second thrust is applied to the synchronizer, until described
Synchronizer reaches synchronous end point.
Optionally, second thrust is started from scratch and is gradually increased at any time.
Optionally, it is described that the second thrust of synchronizer application is included：According to the execution machine for applying second thrust
The ability of structure, increase of starting from scratch is until reach the executable power of its maximum, to apply second thrust to the synchronizer.
Optionally, when the synchronous phase starts, the synchronizer is located at synchronous phase initial position, the same to step
Section initial position is located at the first setpoint distance before the synchronous point.
Optionally, the synchronous point is predefined by way of self study；The synchronous end point is located at described
The second setpoint distance after synchronous point.
Optionally, the size of first thrust and second thrust is controlled by the control electric current of control pressure valve
System, the pressure valve are coupled with the synchronizer.
In order to solve the above technical problems, slide downshift control dress the embodiment of the invention also discloses a kind of automatic transmission
It puts, the downshift control device that slides of automatic transmission includes：
Synchronous start element, suitable for when synchronous phase starts, applying the first thrust to synchronizer, so that the synchronizer
It is advanced into synchronous point；Speed difference eliminates unit, suitable for cancelling first thrust, so that the synchronizer eliminates speed by rubbing
Difference；Synchronous end unit, suitable for applying the second thrust to the synchronizer, until the synchronizer reaches synchronous end point.
Optionally, second thrust is started from scratch and is gradually increased at any time.
Optionally, the synchronous end unit is started from scratch according to the ability for the executing agency for applying second thrust
Increase is until reach the executable power of its maximum, to apply second thrust to the synchronizer.
Optionally, when the synchronous phase starts, the synchronizer is located at synchronous phase initial position, the same to step
Section initial position is located at the first setpoint distance before the synchronous point.
Optionally, the synchronous point is predefined by way of self study；The synchronous end point is located at described
The second setpoint distance after synchronous point.
Optionally, the size of first thrust and second thrust is controlled by the control electric current of control pressure valve
System, the pressure valve are coupled with the synchronizer.
In order to solve the above technical problems, the embodiment of the invention also discloses a kind of vehicle, the vehicle includes described automatic
Speed changer slides downshift 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 applies the first thrust when synchronous phase starts, to synchronizer, so that the synchronizer promotes
To synchronous point；Next first thrust is cancelled, so that the synchronizer eliminates speed difference by friction；Later to the synchronization
Device applies the second thrust, until the synchronizer reaches synchronous end point.Technical solution of the present invention eliminate speed difference stage, apply
The first thrust for being added in synchronizer is revoked namely synchronizer is not applied in external force after synchronous point is advanced into, then same
It walks on device also not because of the frictional force that external force generates, so when speed difference eliminates completion, avoids the frictional force generated by external force
Square suddenly disappears, and so as to slow down the fluctuation of transmission input shaft, and then slows down the shake of vehicle, realizes what is more smoothed out
Downshift process is slided, the driver comfort of user is improved, improves user experience.
Further, being started from scratch according to the ability for the executing agency for applying second thrust, it is executable to perform its maximum
Power, to apply second thrust to the synchronizer.Technical solution of the present invention performs its maximum by executing agency and can perform
Power, until the synchronizer reaches synchronous end point, can ensure to slide downshift it is smooth on the basis of realize Fast synchronization, into
One step improves user experience.
Description of the drawings
Fig. 1 is a kind of flow chart for sliding downshift control method of automatic transmission of the embodiment of the present invention；
Fig. 2 is a kind of change curve schematic diagram of simultaneous force of the embodiment of the present invention；
Fig. 3 is a kind of structure chart for sliding downshift control device of automatic transmission of the embodiment of the present invention.
Specific embodiment
As described in the background art, when the prior art synchronizes control using above-mentioned control mode, what is synchronously completed
In a flash, moment of friction can suddenly disappear as caused by simultaneous force, similar to torque step；The friction generated due to simultaneous force
Torque is very big, and so as to which input shaft rotating speed be caused to fluctuate, this fluctuation can be transferred to output shaft of gear-box and wheel through meshing gear, make
It is shaken into vehicle.Especially during downshift is slided, driver perceives shake more apparent so that slides the comfort of downshift
It reduces, poor user experience.
Present inventor analyzes the prior art, and in new energy vehicle, power source can include motor.By
The speed-regulating function and response quickly having in itself in motor, thus new energy vehicle in gearshift can by electric machine speed regulation function Lai
Eliminate most of speed difference between gear.That is, the synchronizer of the automatic transmission of new energy vehicle works as front when synchronous
Speed difference between position and target gear has been eliminated substantially, only the remaining speed difference of remaining very little.Therefore it need to only ensure to be applied to synchronizer
Simultaneous force synchronizer can be promoted to move, you can complete synchronous to be simultaneously linked into target gear.
That is, since most of speed difference can be eliminated beforehand through electric machine speed regulation control so that synchronizer synchronizes
Load substantially reduce, therefore promote by way of adjusting simultaneous force size the ride comfort for sliding downshift there is feasibility.
The embodiment of the present invention is revoked namely synchronizer in the stage for eliminating speed difference, the first thrust for being applied to synchronizer
Do not apply external force；The frictional force also generated so on synchronizer without external force so when speed difference eliminates completion, avoids
Suddenly disappearing for the frictional force that external force generates, so as to slow down the fluctuation of transmission input shaft, and then slows down the shake of vehicle,
The driver comfort for sliding downshift process, improving user more smoothed out is realized, improves user experience.
It is understandable for the above objects, features and advantages of the present invention is enable to become apparent, below in conjunction with the accompanying drawings to the present invention
Specific embodiment be described in detail.
Fig. 1 is a kind of flow chart for sliding downshift control method of automatic transmission of the embodiment of the present invention.
The downshift control method that slides of automatic transmission shown in FIG. 1 may comprise steps of：
Step S101：When synchronous phase starts, the first thrust is applied to synchronizer, so that the synchronizer is advanced into together
Beans-and bullets shooter；
Step S102：First thrust is cancelled, so that the synchronizer eliminates speed difference by friction；
Step S103：Second thrust is applied to the synchronizer, until the synchronizer reaches synchronous end point.
Simultaneous force alleged by the embodiment of the present invention can be applied to the power of synchronizer, can be pushed away including the first thrust and second
Power.
The present embodiment slides downshift control method and can apply in new energy vehicle.Downshift control method is slided to implement
Before, most of speed difference between current shift and target gear has been eliminated by the speed-regulating function of motor.That is,
When downshift control method is slided in execution, the speed difference between current shift and target gear has been eliminated substantially, current shift and mesh
Remaining speed difference is only existed between mark gear.Namely in step s 102 the synchronizer by friction eliminate speed difference when, the speed
Difference is the remaining speed difference after electric machine speed regulation.Relative to the speed difference that synchronizer in the prior art is eliminated, the remnants speed difference very littles.
In specific implementation, in step S101, when synchronous phase starts, by applying the first thrust to synchronizer, make institute
It states synchronizer and is advanced into synchronous point.Only after synchronizer is judged as entering synchronous phase, the control of power is just synchronized,
I.e. after synchronizer is judged as entering synchronous phase, the first thrust just is applied to synchronizer.Specifically, determining that first pushes away
During the size of power, it is ensured that the first thrust can promote synchronizer.Preferably, it under the premise of it can promote synchronizer, chooses
The power of numerical value minimum on the basis of ensureing that synchronizer can be advanced synchronous point, reduces vehicular impact as the first thrust.
In specific implementation, through step S101, synchronizer reaches synchronous point, and synchronizer starts to generate frictional force at this time.Specifically
For, between synchronous point, synchronous ring and combination gear ring (also referred to as combined cover) frictional force is generated because rubbing surface contacts.Current shift
Remaining speed difference between target gear is eliminated by synchronous ring and with reference to the frictional force between gear ring.In this case,
First thrust is cancelled, additional frictional force is generated to avoid when applying simultaneous force to synchronizer.It has been eliminated in this way in speed difference
Cheng Shi is only that synchronous ring and the frictional force combined between gear ring disappear.The frictional force phase generated with simultaneous force of the prior art
Than synchronous ring and the frictional force combined between gear ring are much smaller, also just substantially reduce the fluctuation of transmission input shaft, and then subtract
The shake of vehicle is delayed, has realized the driver comfort for sliding downshift process, improving user more smoothed out, improve user
Experience.
In specific implementation, through step S102, the speed difference between current shift and target gear is all eliminated, applies at this time
The simultaneous force being added on synchronizer will not generate harmful effect to vehicle.Therefore in step s 103, the is applied to the synchronizer
Two thrusts, until the synchronizer reaches synchronous end point, synchronous phase terminates.
In specific implementation, due to cancelling first thrust in step S102, the simultaneous force applied to synchronizer is zero, therefore
Second thrust is started from scratch and is gradually increased at any time.
In specific implementation, the size of first thrust and second thrust can pass through the control electricity of control pressure valve
Stream controls, and the pressure valve is coupled with the synchronizer.Specifically, control electric current is bigger, the pressure that pressure valve generates is got over
Greatly, the simultaneous force for being applied to synchronizer is also bigger.
A kind of specific embodiment of step S103 can be：According to the energy for the executing agency for applying second thrust
Power, increase of starting from scratch is until reach the executable power of its maximum, to apply second thrust to the synchronizer.Due to holding
During row step S103, the speed difference between current shift and target gear is all eliminated, is applied at this time same on synchronizer
Harmful effect will not be generated to vehicle by walking power；Therefore it in order to ensure to slide the rapidity of downshift, can be held with the maximum of executing agency
Row power is the second thrust, so that synchronizer can quickly reach synchronous end point, ensures that automatic transmission slides the speed of downshift.
Specifically, the executing agency can be pressure valve and piston cylinder, executing agency can directly drive synchronizer.
In specific implementation, when the synchronous phase starts, the synchronizer is located at synchronous phase initial position, described same
Step section initial position is located at the first setpoint distance before the synchronous point.
In specific implementation, the synchronous point can be predefined by way of self study；The synchronous end point
The second setpoint distance after the synchronous point.Specifically, the position of synchronous point can be determined by way of self study
It puts；First setpoint distance and the second setpoint distance can be determined by way of calibration.As a result, synchronous phase initial position and
Synchronous end point can be determined based on synchronous point, the first setpoint distance and the second setpoint distance.
Specifically, self study determines that synchronous point can be realized by application software.The application software can be with
It is accurate to find the physics limit of synchronizer and the specific location of synchronous point, and the control sky of synchronous point determines according to actual conditions
Between namely the first setpoint distance and the second setpoint distance, in order to the realization of Synchronization Control.
In specific implementation, the position of synchronizer can be detected by synchronizer position sensor.That is, by connecing
The synchronizer position signal of synchronizer position sensor is received, judges the position of synchronizer, and then is come according to the position of synchronizer true
Surely it is applied to the size of the simultaneous force of synchronizer.
The downshift control method that slides of the automatic transmission of the embodiment of the present invention is controlled by the simultaneous force to synchronizer
System realizes the smooth-going downshift of vehicle.
It is understood that the downshift control method that slides of the automatic transmission of the embodiment of the present invention can be applied to new energy
Source vehicle slides downshift scene.Downshift control method is slided in implementation process due to automatic transmission, it is defeated without power
Go out (namely throttle is off), driver easily feels that vehicle is shaken at this time, for the upshift scene of vehicle, the present invention
The automatic transmission of embodiment slides downshift control method and can influence driving experience.
Fig. 2 is a kind of change curve schematic diagram of simultaneous force of the embodiment of the present invention.
As shown in Fig. 2, abscissa represents the time in figure, ordinate represents simultaneous force.Curve 1 is simultaneous force in the prior art
Schematic diagram；Curve 2 represents the schematic diagram of the simultaneous force of the embodiment of the present invention.
In the present embodiment, at the T1 moment, synchronizer is in synchronous phase initial position.Synchronizer enters synchronous phase, this
When executing agency can be controlled to synchronize the control of power.That is, at the T1 moment, apply that size is F1 to synchronizer the
One thrust, and time duration t1.At the T2 moment, synchronizer is advanced synchronous point.Specifically, by reducing pressure valve
Control electric current so that piston cylinder generates a size as the first thrust of F1 to push synchronizer, and forward push；It maintains
After the time span for the first thrust that size is F1 is t1, synchronizer is sent to synchronous point, and synchronous ring starts to generate frictional force.
It should be noted that T1 and synchronizer are sent at the time of the concrete numerical value of time span t1 is started with synchronous phase
T2 is determined at the time of synchronous point.
At the T2 moment, while synchronizer is advanced synchronous point, the first thrust is cancelled.Specifically, reduction can be passed through
The control electric current of pressure valve realizes the first thrust of revocation, synchronizer is made to rub naturally on condition that an external force is not applied, so as to disappear
Except the remaining speed difference after electric machine speed regulation.Synchronizer holds time length as after t2 on condition that an external force is not applied, that is,
Moment T3, the remaining speed difference after synchronizer speed governing are eliminated, and can start to put into gear.
While remaining speed difference after moment T3, synchronizer speed governing is eliminated, the second thrust is applied to synchronizer, until
Synchronizer reaches synchronous end point in moment T4.Specifically, quick increase can be realized by increasing the control electric current of pressure valve
Second thrust so that synchronizer quickly propels, until the physical location of synchronizer reaches synchronous end point, completes entire same step
Section.
Specifically, the size of the second thrust can be according to the executive capability and current gearshift demand of executing agency come really
It is fixed.
In a specific embodiment of the invention, after synchronizer enters synchronous phase, executing agency starts simultaneous force therewith
Control：In the time span t1 started in moment T1, synchronizer is pushed with smaller first thrust, is passed to synchronous point；
In the time span t2 that T2 starts at the time of reaching synchronous point, first thrust is removed, synchronizer is made almost to be not added with external force
In the case of rub naturally, so as to eliminate the remaining speed difference after electric machine speed regulation；T3 at the time of after speed difference completely eliminates, executing agency
It is quick to increase power so that synchronizer quickly propels, to complete entire synchronizing process.
With continued reference to Fig. 2, as shown by curve 1, synchronizer completes synchronizing process in moment T4 in the prior art.At the moment
T4, the speed difference between target gear and current shift are completely eliminated, and the frictional force that simultaneous force F2 is generated at this time disappears, and causes vehicle
Shake.And in the embodiment of the present invention, with reference to curve 2, it can be seen that, the speed difference between target gear and current shift is complete
T3 at the time of removing is totally disappeared, the simultaneous force size for being applied to synchronizer is 0, and simultaneous force does not have between synchronous ring and combination gear ring at this time
There is generation frictional force；And the frictional force generated between ring and combination gear ring (also referred to as combined cover) is synchronized at this time and is not enough to cause vehicle
Shake.By upper, the embodiment of the present invention realizes the driver comfort for sliding downshift process, improving user more smoothed out, carries
High user experience.
Fig. 3 is a kind of structure chart for sliding downshift control device of automatic transmission of the embodiment of the present invention.
Automatic transmission shown in Fig. 3 slides downshift control device 30 and can include：Synchronous start element 301, speed difference
Eliminate unit 302 and synchronous end unit 303.
Wherein, synchronous start element 301 is suitable for when synchronous phase starts, and applies the first thrust to synchronizer, so that institute
It states synchronizer and is advanced into synchronous point.
Speed difference eliminates unit 302 and is suitable for cancelling first thrust, so that the synchronizer eliminates speed difference by friction.
Synchronous end unit 303 is suitable for applying the second thrust to the synchronizer, until the synchronizer reaches synchronous knot
Spot.
In specific implementation, second thrust is started from scratch and is gradually increased at any time.
In specific implementation, synchronous end unit 303 can according to the ability of the executing agency for applying second thrust from
Zero starts to perform the executable power of its maximum, to apply second thrust to the synchronizer.
In specific implementation, when the synchronous phase starts, the synchronizer is located at synchronous phase initial position, described same
Step section initial position is located at the first setpoint distance before the synchronous point.
In specific implementation, the synchronous point is predefined by way of self study；The synchronous end point is located at
The second setpoint distance after the synchronous point.
In specific implementation, the size of first thrust and second thrust by the control electric current of control pressure valve come
Control, the pressure valve are coupled with the synchronizer.
What the specific embodiment of the embodiment of the present invention can refer to automatic transmission shown in FIG. 1 slides downshift control method
Embodiment, details are not described herein again.
The embodiment of the invention also discloses a kind of vehicle, the vehicle can include the cunning of automatic transmission shown in Fig. 3
Row downshift control device 30.The vehicle is new energy vehicle, and the new energy vehicle can include motor, and motor can change
Speed difference during gear between gear is adjusted.
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 automatic transmission slides downshift control method, which is characterized in that including：
When synchronous phase starts, the first thrust is applied to synchronizer, so that the synchronizer is advanced into synchronous point；
First thrust is cancelled, so that the synchronizer eliminates speed difference by friction；
Second thrust is applied to the synchronizer, until the synchronizer reaches synchronous end point.
2. according to claim 1 slide downshift control method, which is characterized in that second thrust is started from scratch at any time
Between gradually increase.
3. according to claim 2 slide downshift control method, which is characterized in that described to apply second to the synchronizer
Thrust includes：
According to the ability for the executing agency for applying second thrust, increase of starting from scratch can perform power until reaching its maximum,
To apply second thrust to the synchronizer.
4. according to claim 1 slide downshift control method, which is characterized in that when the synchronous phase starts, institute
It states synchronizer and is located at synchronous phase initial position, the synchronous phase initial position is located at the first setting before the synchronous point
Distance.
5. according to claim 1 slide downshift control method, which is characterized in that the side that the synchronous point passes through self study
Formula is predefined；The synchronous end point is located at the second setpoint distance after the synchronous point.
6. according to claim 1 slide downshift control method, which is characterized in that first thrust and described second pushes away
The size of power is controlled by the control electric current of control pressure valve, and the pressure valve is coupled with the synchronizer.
7. a kind of automatic transmission slides downshift control device, which is characterized in that including：
Synchronous start element, suitable for when synchronous phase starts, applying the first thrust to synchronizer, so that the synchronizer promotes
To synchronous point；
Speed difference eliminates unit, suitable for cancelling first thrust, so that the synchronizer eliminates speed difference by friction；
Synchronous end unit, suitable for applying the second thrust to the synchronizer, until the synchronizer reaches synchronous end point.
8. according to claim 7 slide downshift control device, which is characterized in that second thrust is started from scratch at any time
Between gradually increase.
9. according to claim 8 slide downshift control device, which is characterized in that the synchronous end unit is according to application
The ability of the executing agency of second thrust, increase of starting from scratch is until reach the executable power of its maximum, with to the synchronization
Device applies second thrust.
10. according to claim 7 slide downshift control device, which is characterized in that when the synchronous phase starts, institute
It states synchronizer and is located at synchronous phase initial position, the synchronous phase initial position is located at the first setting before the synchronous point
Distance.
11. according to claim 7 slide downshift control device, which is characterized in that the synchronous point passes through self study
Mode is predefined；The synchronous end point is located at the second setpoint distance after the synchronous point.
12. according to claim 7 slide downshift control device, which is characterized in that first thrust and described second
The size of thrust is controlled by the control electric current of control pressure valve, and the pressure valve is coupled with the synchronizer.
13. a kind of vehicle, which is characterized in that slide drop including such as claim 7 to 12 any one of them automatic transmission
Keep off control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111142.0A CN108150640B (en) | 2016-12-02 | 2016-12-02 | Automatic transmission coasting and downshifting control method and device and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611111142.0A CN108150640B (en) | 2016-12-02 | 2016-12-02 | Automatic transmission coasting and downshifting control method and device and vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108150640A true CN108150640A (en) | 2018-06-12 |
| CN108150640B CN108150640B (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611111142.0A Active CN108150640B (en) | 2016-12-02 | 2016-12-02 | Automatic transmission coasting and downshifting control method and device and vehicle |
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| Country | Link |
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| CN (1) | CN108150640B (en) |
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| CN111102351A (en) * | 2018-10-26 | 2020-05-05 | 上海汽车集团股份有限公司 | Method and device for correcting thrust of synchronizer |
| CN112145671A (en) * | 2019-06-28 | 2020-12-29 | 丰田自动车株式会社 | Control device for synchromesh mechanism |
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| WO2015180949A1 (en) * | 2014-05-26 | 2015-12-03 | Hoerbiger Antriebstechnik Holding Gmbh | Synchronization device and synchronization method |
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| US20020148311A1 (en) * | 2001-04-16 | 2002-10-17 | Toshio Kobayashi | Automatic transmission |
| JP2011033139A (en) * | 2009-08-03 | 2011-02-17 | Honda Motor Co Ltd | Control device of transmission |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111102351A (en) * | 2018-10-26 | 2020-05-05 | 上海汽车集团股份有限公司 | Method and device for correcting thrust of synchronizer |
| CN111102351B (en) * | 2018-10-26 | 2021-04-16 | 上海汽车集团股份有限公司 | Method and device for correcting thrust of synchronizer |
| CN112145671A (en) * | 2019-06-28 | 2020-12-29 | 丰田自动车株式会社 | Control device for synchromesh mechanism |
| CN112145671B (en) * | 2019-06-28 | 2022-03-01 | 丰田自动车株式会社 | Control device for synchromesh mechanism |
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| Publication number | Publication date |
|---|---|
| CN108150640B (en) | 2020-09-08 |
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