CN105042062B - A kind of shift control method and device - Google Patents
A kind of shift control method and device Download PDFInfo
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- CN105042062B CN105042062B CN201510256541.5A CN201510256541A CN105042062B CN 105042062 B CN105042062 B CN 105042062B CN 201510256541 A CN201510256541 A CN 201510256541A CN 105042062 B CN105042062 B CN 105042062B
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 239000000446 fuel Substances 0.000 claims abstract description 54
- 230000005540 biological transmission Effects 0.000 claims abstract description 30
- 230000008859 change Effects 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 3
- 239000000295 fuel oil Substances 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- 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
- F16H61/0204—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 for gearshift control, e.g. control functions for performing shifting or generation of shift signal
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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
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/36—Inputs being a function of speed
- F16H59/44—Inputs being a function of speed dependent on machine speed of the machine, e.g. the vehicle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
- F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
-
- 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
- F16H2061/0015—Transmission control for optimising fuel consumptions
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
This application provides a kind of shift control method and device, detect after the current gear of vehicle, obtain the opening value of corresponding with the gear that the vehicle is current gearshift curve and the current throttle of the vehicle, it is determined that gearshift speed corresponding with the opening value of current throttle on gearshift curve, and the speed current according to vehicle and gearshift speed, control vehicle is shifted gears, because curve of shifting gears is generated according to the engine fuel characteristic and vehicle transmission efficiency of the vehicle, so, when being shifted gears, not only allow for the fuel characteristic of engine, also using vehicle transmission efficiency as foundation, so, it can accurately obtain causing the shifting points that vehicle fuel oil is most economical, so as to by shifting gears more precisely by wagon control in the range of fuel-economy.
Description
Technical field
The application is related to control field, more particularly to a kind of shift control method and device.
Background technology
Because heavy truck is generally all that, in full load conditions downward driving, as long-distance vehicle, its economy is also this
The main target that class product is pursued.Automatic transmission is set to carry out gear shift operation with most economical shifting points, to reach reduction
The purpose of fuel consumption.
Existing process for gear, is that foundation determines most economical shifting points usually using the fuel oil curve of engine, so
And, due to gearbox, in different gears, transmission efficiency is different, vehicle fuel economy region and Fuel Economy area
Domain has differences, therefore, only considers engine fuel curve, the fuel oil of vehicle can not be caused to reach most economical state.
It can be seen that, there is the problem of control result is not accurate enough in existing shift control method.
The content of the invention
This application provides a kind of shift control method and device, it is therefore intended that solves the control that existing process for gear is present
The problem of result processed is not accurate enough.
To achieve these goals, this application provides following technical scheme：
A kind of shift control method, including：
Detect the current gear of vehicle；
Obtain gearshift curve corresponding with the gear that the vehicle is current, gearshift curve the starting according to the vehicle
Machine fuel characteristic and the generation of vehicle transmission efficiency, the curve that the gearshift curve changes for the aperture of throttle with speed；
Obtain the opening value of the current throttle of the vehicle；
Determine gearshift speed corresponding with the opening value of the current throttle on the gearshift curve；
The speed current according to the vehicle and the gearshift speed, control the vehicle to be shifted gears.
Alternatively, generating the process of the gearshift curve includes：
According to the current gear of the vehicle and the transmission system efficiency of next gear of the current gear, calculate described
Current gear and the vehicle fuel consumption of next gear of the current gear；
According to the vehicle fuel consumption, calculate under same accelerator open degree, the current gear and the current gear
The fuel consumption curve of next gear, wherein, the current gear and the fuel consumption of next gear of the current gear
The intersection point of rate curve is shift-up point；
The shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is the current gear
Be converted to the upshift curve of next gear of the current gear.
Alternatively, in addition to：
Calculate downshift point, the speed of the downshift point is the speed of the shift-up point and the difference of the first numerical value, also, institute
The speed for stating downshift point is more than or equal to the minimum speed of current gear；
The downshift point is fitted to the relation curve that throttle changes with speed, the relation curve is the current gear
Be converted to the downshift curve of a upper gear for the current gear.
Alternatively, the speed current according to the vehicle and the gearshift speed, control the vehicle to be shifted gears
Including：
If the current speed of the vehicle is more than upshift speed, control vehicle is upshiftd；
If the current speed of the vehicle is downshifted less than downshift speed, control vehicle.
Alternatively, in addition to：
Use A=(vn-vn+1)/vnDiverging and degree of convergence to schedule are evaluated, and by vnAnd vn+1's
Control, by A controls within a preset range, wherein, vnDuring to give full throttle, n grades change n+1 grades when speed；vn+1To be complete
When opening throttle, the n+1 grades of speeds that drop at n grades.
A kind of shift control apparatus, including：
Detection module, the gear current for detecting vehicle；
First acquisition module, for obtaining gearshift curve corresponding with the gear that the vehicle is current, the gearshift curve
Engine fuel characteristic and vehicle transmission efficiency according to the vehicle are generated, and the gearshift curve is the aperture of throttle with car
The curve of speed change；
Second acquisition module, the opening value for obtaining the current throttle of the vehicle；
Determining module, for determining gearshift car corresponding with the opening value of the current throttle on the gearshift curve
Speed；
Gearshift control module, for the speed current according to the vehicle and the gearshift speed, controls the vehicle to enter
Row gearshift.
Alternatively, in addition to：
Gearshift curve generation module, for the current gear according to the vehicle and next gear of the current gear
Transmission system efficiency, calculates the current gear and the vehicle fuel consumption of next gear of the current gear；According to described
Vehicle fuel consumption, is calculated under same accelerator open degree, the current gear and the fuel oil of next gear of the current gear disappear
Consumption rate curve, wherein, the intersection point of the current gear and the fuel consumption curve of next gear of the current gear is liter
Shelves point；And the shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is the current gear
Be converted to the upshift curve of next gear of the current gear.
Alternatively, the gearshift curve generation module is additionally operable to：
Calculate downshift point, the speed of the downshift point is the speed of the shift-up point and the difference of the first numerical value, also, institute
The speed for stating downshift point is more than or equal to the minimum speed of current gear；And the downshift point is fitted to throttle and changed with speed
Relation curve, the relation curve be the current gear be converted to the current gear a upper gear downshift curve.
Alternatively, the gearshift control module is used for the speed current according to the vehicle and the gearshift speed, control
The vehicle, which carries out gearshift, to be included：
The gearshift control module is specifically for if the current speed of the vehicle is more than upshift speed, controlling car
Upshiftd；If the current speed of the vehicle is downshifted less than downshift speed, control vehicle.
Alternatively, the gearshift control module is additionally operable to：
Use A=(vn-vn+1)/vnDiverging and degree of convergence to schedule are evaluated, and by vnAnd vn+1's
Control, by A controls within a preset range, wherein, vnDuring to give full throttle, n grades change n+1 grades when speed；vn+1To be complete
When opening throttle, the n+1 grades of speeds that drop at n grades.
Shift control method and device described herein, are detected after the current gear of vehicle, are obtained and the vehicle
The opening value of the corresponding gearshift curve of current gear and the current throttle of the vehicle, it is determined that on gearshift curve and currently
The corresponding gearshift speed of opening value of throttle, and the speed and gearshift speed current according to vehicle, control vehicle are shifted gears, because
Engine fuel characteristic and vehicle transmission efficiency for gearshift curve according to the vehicle are generated, so, when being shifted gears,
The fuel characteristic of engine is not only allowed for, also using vehicle transmission efficiency as foundation, thus it is possible to accurately obtain so that vehicle
The most economical shifting points of fuel oil, so as to by shifting gears more precisely by wagon control in the range of fuel-economy.
Brief description of the drawings
, below will be to embodiment or existing in order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of application, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is a kind of flow chart of shift control method disclosed in the embodiment of the present application；
Fig. 2 is the schematic diagram of existing gearshift curve；
Fig. 3 for engine fuel consumption curve and vehicle fuel consumption curve schematic diagram；
Fig. 4 is the flow chart of the process of the embodiment of the present application disclosed generation gearshift curve；
Fig. 5 is a kind of structural representation of shift control apparatus disclosed in the embodiment of the present application.
Embodiment
The embodiment of the present application provides a kind of shift control method and device, can apply in changing for automatic gear-box
Keep off in control process, it is therefore intended that by gearshift, the engine for more accurately controlling vehicle exists so that the rotating speed of engine exists
The efficiency optimization region of vehicle fuel consumption curve.
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only some embodiments of the present application, rather than whole embodiments.It is based on
Embodiment in the application, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of the application protection.
A kind of shift control method disclosed in the embodiment of the present application, as shown in figure 1, comprising the following steps：
S101：Detect the current gear of vehicle；
S102：Gearshift curve corresponding with the gear that the vehicle is current is obtained, the gearshift curve is according to the vehicle
Engine fuel characteristic and the generation of vehicle transmission efficiency, the gearshift curve for throttle the song that changes with speed of aperture
Line；
S103：Obtain the opening value of the current throttle of the vehicle；
S104：Determine gearshift speed corresponding with the opening value of the current throttle on the gearshift curve；
S105：The speed current according to the vehicle and the gearshift speed, control the vehicle to be shifted gears.
Specifically, S105 specific implementation can be：If the current speed of the vehicle is more than upshift speed,
Control vehicle is upshiftd, if the current speed of the vehicle is less than downshift speed, control vehicle is downshifted.
In the prior art, carried out according to the curve shown in Fig. 2 in gearshift control, Fig. 2, the fuel oil such as real isoline F representatives disappears
Consumption rate line, empty isoline P represents equipower line.One economy " high efficient district " 52 of the graphical representation, the area is represented for turning
Optimum fuel and power demand values under speed and moment of torsion.It is " high that the corresponding curve map also demonstrates an optimal power
Imitate area " 54, the area is represented for the higher fuel consumption and power demand values under rotating speed and moment of torsion.For optimum fuel economy
Property, all gearshifts are made around in optimum fuel economic zone 52.
It can be seen that, prior art only takes into account the parameter of engine when carrying out gearshift control, and as shown in figure 3, engine
Fuel consumption curve and the fuel consumption curve of vehicle be misaligned, and in the prior art, seldom consider the transmission of vehicle
System loss or transmission efficiency are only replaced with constant value, and it is poor not account for the transmission efficiency of different gear transmission systems
It is different.Due to the difference in vehicle fuel economy region and Fuel Economy region, cause in existing gearshift control plan
Under slightly, vehicle driving-cycle point deviates vehicle fuel consumption best region.
And the method described in the present embodiment, engine fuel characteristic and vehicle biography of the gearshift curve according to the vehicle
Efficiency of movement is generated, therefore, it is possible to the transmission efficiency according to vehicle, engine fuel consumption rate universal characteristic is corrected, so as to obtain
Vehicle optimal economic region so that the effect of gearshift control is more accurate.
In the present embodiment, as shown in figure 4, the process of the generation gearshift curve includes step in detail below：
S401：According to the current gear of the vehicle and the transmission system efficiency of next gear of the current gear, meter
Calculate the current gear and the vehicle fuel consumption of next gear of the current gear；
Specifically calculating process is：Engine fuel consumption rate and vehicle transmission efficiency can be expressed as accelerator open degree α with
And engine speed n function：
Ttq=aαn2+ bαn+cα
be=eαn2+fαn+gα
η=hαn2+iαn+jα
Wherein, TtqRepresent engine torque, beEngine fuel consumption is represented, η represents the transmission efficiency of transmission system,
aα、eαAnd hαRepresent secondary term coefficient, bα、fαAnd iαRepresent Monomial coefficient, cα、gαAnd jαRepresent constant term coefficient.
So, vehicle fuel consumption is：
bv=beη=(eαn2+fαn+gα)(hαn2+iαn+jα)
S402：According to the vehicle fuel consumption, calculate under same accelerator open degree, the current gear and the current shelves
The fuel consumption curve of next gear of position, wherein, the current gear and the fuel oil of next gear of the current gear
The intersection point of consumption rate curve is shift-up point；
S403：The shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is worked as to be described
Preceding gear is converted to the upshift curve of next gear of the current gear.
S404：Downshift point is calculated, the speed of the downshift point is difference of the speed with the first numerical value of the shift-up point, and
And, the speed of the downshift point is more than or equal to the minimum speed of current gear；
Wherein, the first numerical value can be 2km/h-8km/h, and the purpose for setting the first numerical value is, it is to avoid gearshift circulation.
It is required that the purpose for the minimum speed that the speed of downshift point is more than or equal to current gear is, it is to avoid engine puts out
Fire.
S405：The downshift point is fitted to the relation curve that throttle changes with speed, the relation curve is worked as to be described
Preceding gear is converted to the downshift curve of a upper gear for the current gear.
Using above-mentioned steps, the corresponding gearshift curve of different gears can be obtained.
In the present embodiment, diverging and the degree of convergence of schedule are evaluated with A：
A=(vn-vn+1)/vn
In formula, vnDuring to give full throttle, n grades change n+1 grades when speed；
vn+1During to give full throttle, the n+1 grades of speeds that drop at n grades.General vn+1More than maximum power point rotating speed
0.5-0.6 times be advisable, conventional shelves take large values, i.e., A should be less than 0.4-0.45.
The purpose that A values are controlled is so that good dynamic property during large throttle so that economy during small throttle
It is good.
In the present embodiment, it is considered to which the difference of different gear gearbox transmission efficiencies, the vehicle fuel oil for obtaining different gears disappears
Consumption rate characteristic, and, it is considered to the efficiency value that power train transmission efficiency is produced with rotating speed change in torque changes, and obtains power train effect
Rate universal characteristic, really realizes that engine fuel consumption rate is matched with the optimal properties of transmission system efficiency.
With above method embodiment accordingly, the embodiment of the present application also discloses a kind of shift control apparatus, such as Fig. 5 institutes
Show, including：
Detection module 501, the gear current for detecting vehicle；
First acquisition module 502, for obtaining gearshift curve corresponding with the gear that the vehicle is current, the gearshift is bent
Line according to the vehicle engine fuel characteristic and vehicle transmission efficiency generate, it is described gearshift curve for throttle aperture with
The curve of speed change；
Second acquisition module 503, the opening value for obtaining the current throttle of the vehicle；
Determining module 504, for determining gearshift corresponding with the opening value of the current throttle on the gearshift curve
Speed；
Gearshift control module 505, for the speed current according to the vehicle and the gearshift speed, controls the vehicle
Shifted gears.
Specifically, the gearshift control module speed and the gearshift speed current according to the vehicle, controls the vehicle
Implementing for being shifted gears can be wantonly instead：If the current speed of the vehicle is more than upshift speed, vehicle is controlled
Upshiftd；If the current speed of the vehicle is downshifted less than downshift speed, control vehicle.
Further, gearshift control module can be also used for：Use A=(vn-vn+1)/vnDiverging and receipts to schedule
The degree of holding back is evaluated, and by vnAnd vn+1Control, by the A control within a preset range, wherein, vnTo give full throttle
When, n grades change n+1 grades when speed；vn+1During to give full throttle, the n+1 grades of speeds that drop at n grades.
Alternatively, in the present embodiment, it can also include：
Gearshift curve generation module 506, next shelves for the current gear according to the vehicle and the current gear
The transmission system efficiency of position, calculates the current gear and the vehicle fuel consumption of next gear of the current gear；Foundation
The vehicle fuel consumption, is calculated under same accelerator open degree, the current gear and the combustion of next gear of the current gear
Specific oil consumption curve, wherein, the current gear and the intersection point of the fuel consumption curve of next gear of the current gear
For shift-up point；And the shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is described current
Gear is converted to the upshift curve of next gear of the current gear.Further, gearshift curve generation module can also be used
In：Calculate downshift point, the speed of the downshift point is the speed of the shift-up point and the difference of the first numerical value, also, the drop
The speed of shelves point is more than or equal to the minimum speed of current gear；And the downshift point is fitted to the pass that throttle changes with speed
It is curve, the relation curve is the downshift curve for the upper gear that the current gear is converted to the current gear.
Method described in the present embodiment, gearshift curve is driven according to the engine fuel characteristic and vehicle of the vehicle
Efficiency is generated, therefore, it is possible to the transmission efficiency according to vehicle, engine fuel consumption rate universal characteristic is corrected, so as to obtain whole
Car optimal economic region so that the effect of gearshift control is more accurate.
If the function described in the embodiment of the present application method is realized using in the form of SFU software functional unit and is used as independent production
Product are sold or in use, can be stored in a computing device read/write memory medium.Understood based on such, the application is real
The part for applying part that example contributes to prior art or the technical scheme can be embodied in the form of software product,
The software product is stored in a storage medium, including some instructions are to cause a computing device (can be personal meter
Calculation machine, server, mobile computing device or network equipment etc.) perform whole or the portion of the application each embodiment methods described
Step by step.And foregoing storage medium includes：USB flash disk, mobile hard disk, read-only storage (ROM, Read-Only Memory), with
Machine access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with Jie of store program codes
Matter.
The embodiment of each in this specification is described by the way of progressive, what each embodiment was stressed be with it is other
Between the difference of embodiment, each embodiment same or similar part mutually referring to.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or use the application.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can in other embodiments be realized in the case where not departing from spirit herein or scope.Therefore, the application
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (8)
1. a kind of shift control method, it is characterised in that including：
Detect the current gear of vehicle；
Gearshift curve corresponding with the gear that the vehicle is current is obtained, the gearshift curve fires according to the engine of the vehicle
Oily characteristic and the generation of vehicle transmission efficiency, the curve that the gearshift curve changes for the aperture of throttle with speed；
Obtain the opening value of the current throttle of the vehicle；
Determine gearshift speed corresponding with the opening value of the current throttle on the gearshift curve；
The speed current according to the vehicle and the gearshift speed, control the vehicle to be shifted gears；
The process of the generation gearshift curve includes：
According to the current gear of the vehicle and the transmission system efficiency of next gear of the current gear, calculate described current
The vehicle fuel consumption of gear and next gear of the current gear；
According to the vehicle fuel consumption, calculate under same accelerator open degree, the current gear is next with the current gear
The fuel consumption curve of gear, wherein, the current gear and the fuel consumption of next gear of the current gear are bent
The intersection point of line is shift-up point；
The shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is changed for the current gear
For the upshift curve of next gear of the current gear.
2. according to the method described in claim 1, it is characterised in that also include：
Calculate downshift point, the speed of the downshift point is the speed of the shift-up point and the difference of the first numerical value, also, the drop
The speed of shelves point is more than or equal to the minimum speed of current gear；
The downshift point is fitted to the relation curve that throttle changes with speed, the relation curve is changed for the current gear
For the downshift curve of a upper gear for the current gear.
3. the method according to any one of claim 1 to 2, it is characterised in that the speed current according to the vehicle
With the gearshift speed, controlling the vehicle to carry out gearshift includes：
If the current speed of the vehicle is more than upshift speed, control vehicle is upshiftd；
If the current speed of the vehicle is downshifted less than downshift speed, control vehicle.
4. method according to claim 3, it is characterised in that also include：
Use A=(vn-vn+1)/vnDiverging and degree of convergence to schedule are evaluated, and by vnAnd vn+1Control
System, by A controls within a preset range, wherein, vnDuring to give full throttle, n grades change n+1 grades when speed；vn+1For standard-sized sheet
During throttle, the n+1 grades of speeds that drop at n grades.
5. a kind of shift control apparatus, it is characterised in that including：
Detection module, the gear current for detecting vehicle；
First acquisition module, for obtaining gearshift curve corresponding with the gear that the vehicle is current, the gearshift curve foundation
Engine fuel characteristic and vehicle the transmission efficiency generation of the vehicle, the gearshift curve become for the aperture of throttle with speed
The curve of change；
Second acquisition module, the opening value for obtaining the current throttle of the vehicle；
Determining module, for determining gearshift speed corresponding with the opening value of the current throttle on the gearshift curve；
Gearshift control module, for the speed current according to the vehicle and the gearshift speed, controls the vehicle to be changed
Gear；
Gearshift curve generation module, the transmission for the current gear according to the vehicle and next gear of the current gear
System effectiveness, calculates the current gear and the vehicle fuel consumption of next gear of the current gear；According to the vehicle
Fuel consumption, is calculated under same accelerator open degree, the current gear and the fuel consumption of next gear of the current gear
Curve, wherein, the intersection point of the current gear and the fuel consumption curve of next gear of the current gear is shift-up point；
And the shift-up point is fitted to the relation curve that throttle changes with speed, the relation curve is that the current gear is converted to
The upshift curve of next gear of the current gear.
6. device according to claim 5, it is characterised in that the gearshift curve generation module is additionally operable to：
Calculate downshift point, the speed of the downshift point is the speed of the shift-up point and the difference of the first numerical value, also, the drop
The speed of shelves point is more than or equal to the minimum speed of current gear；And the downshift point is fitted to the pass that throttle changes with speed
It is curve, the relation curve is the downshift curve for the upper gear that the current gear is converted to the current gear.
7. the device according to any one of claim 5 to 6, it is characterised in that the gearshift control module is used for according to institute
The current speed of vehicle and the gearshift speed are stated, controlling the vehicle to carry out gearshift includes：
The gearshift control module is specifically for if the current speed of the vehicle is more than upshift speed, control vehicle enters
Row upshift；If the current speed of the vehicle is downshifted less than downshift speed, control vehicle.
8. device according to claim 7, it is characterised in that the gearshift control module is additionally operable to：
Use A=(vn-vn+1)/vnDiverging and degree of convergence to schedule are evaluated, and by vnAnd vn+1Control
System, by A controls within a preset range, wherein, vnDuring to give full throttle, n grades change n+1 grades when speed；vn+1For standard-sized sheet
During throttle, the n+1 grades of speeds that drop at n grades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256541.5A CN105042062B (en) | 2015-05-19 | 2015-05-19 | A kind of shift control method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510256541.5A CN105042062B (en) | 2015-05-19 | 2015-05-19 | A kind of shift control method and device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105042062A CN105042062A (en) | 2015-11-11 |
| CN105042062B true CN105042062B (en) | 2017-09-15 |
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| CN201510256541.5A Expired - Fee Related CN105042062B (en) | 2015-05-19 | 2015-05-19 | A kind of shift control method and device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107120426A (en) * | 2017-04-28 | 2017-09-01 | 北京新能源汽车股份有限公司 | Electric automobile control method and device and electric automobile |
| CN107415774B (en) * | 2017-07-31 | 2019-10-18 | 北京新能源汽车股份有限公司 | Gear shifting control method and device and electric automobile |
| CN108099895B (en) * | 2017-12-15 | 2019-12-10 | 潍柴动力股份有限公司 | method and device for controlling gear shifting strategy of AMT |
| CN108240465B (en) * | 2018-01-05 | 2020-05-19 | 重庆青山工业有限责任公司 | Driver type identification method for vehicle |
| CN108488376B (en) * | 2018-06-19 | 2020-09-25 | 合肥工业大学 | Gear shifting curve determination method for avoiding tractor gear shifting circulation |
| CN111140651B (en) * | 2020-01-21 | 2021-03-19 | 厦门金龙联合汽车工业有限公司 | Climbing gear shifting strategy of two-gear automatic transmission vehicle |
| CN112211997B (en) * | 2020-10-27 | 2022-05-06 | 东风华神汽车有限公司 | Gear shifting reminding control method and system for manual transmission gearbox of commercial vehicle |
| CN114623230B (en) * | 2022-03-21 | 2024-02-20 | 潍柴动力股份有限公司 | Vehicle gear adjusting method, device and system and storage medium |
| CN114407871A (en) * | 2022-03-29 | 2022-04-29 | 潍柴动力股份有限公司 | Vehicle gear adjusting method, device and system and storage medium |
| CN114542706B (en) * | 2022-03-31 | 2024-01-16 | 潍柴动力股份有限公司 | Vehicle gear optimization method and device based on multi-vehicle cooperation and vehicle |
| CN114776799A (en) * | 2022-04-06 | 2022-07-22 | 潍柴动力股份有限公司 | Gear shifting strategy correction method, controller, transmission and motor vehicle |
| CN115355312B (en) * | 2022-08-04 | 2024-06-18 | 潍柴动力股份有限公司 | Gear shifting control method and device for gearbox, storage medium and terminal |
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