CN109268489A - A kind of D grades of shift Learning Control Method - Google Patents
A kind of D grades of shift Learning Control Method Download PDFInfo
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- CN109268489A CN109268489A CN201811118223.2A CN201811118223A CN109268489A CN 109268489 A CN109268489 A CN 109268489A CN 201811118223 A CN201811118223 A CN 201811118223A CN 109268489 A CN109268489 A CN 109268489A
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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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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention discloses a kind of D grades of shift Learning Control Methods.It includes engine, gas pedal, gear-shifting solenoid valve, gear shift sleeve and automatic shift control unit TCU, engine, gas pedal, gear-shifting solenoid valve and gear shift sleeve are connect with automatic shift control unit TCU, in D grades of automatic transmission of gearshift procedure, it is poor that engine speed is calculated by automatic shift control unit TCU, according to engine speed difference as judgment basis, calculate the deviation of practical shift time and desired shift time, this deviation is come to carry out self study adjustment to gear-shifting solenoid valve as a feedback quantity, so as to adjust the pressure of gear shift sleeve, so that gearshift procedure is carried out according to prior defined procedure.The beneficial effects of the present invention are: having the ability adaptive to parts difference, guarantee the consistency of automatic transmission factory gear shifting quality；Gear shift parameters self study adjustment can be carried out, guarantees that automatic transmission keeps a preferable gear shifting quality；Reduce cost.
Description
Technical field
The present invention relates to automatic gear-box correlative technology fields, refer in particular to a kind of D grades of shift Learning Control Method.
Background technique
With popularizing for family-sized car, the occupation rate of market of automatic gear-box will be higher and higher.The D shelves applied now change
Shelves Self-learning control is to need to increase input shaft rotating speed sensor mostly, utilizes transmission input shaft sensor and output shaft revolving speed
Sensor carries out revolving speed matching to realize.D gear shift Self-learning control plays raising in automatic gear-box TCU control system
The effect of gear shifting quality can make in the case where transmission pressure system piston and gear shift sleeve consistency are not good situation
The control that TCU turns round hydraulic system and engine limit is consistent, so that Shift Quality of Automatic Transmission factory consistency obtains
Guarantee.The required precision of the related components such as hydraulic system piston and gear shift sleeve can reduce.
Chinese patent application publication number: CN 104964029A applies for publication date on October 07th, 2015, discloses one kind
Based on bus AMT automatic gear-box gear shift mechanism Learning Control Method, which is characterized in that by acquiring block selecting position
Coordinate voltage, motor position coordinate voltage of putting into gear, block selecting current of electric feedback and current of electric feedback of putting into gear, and calculated by control
Method stores data into TCU master chip to finally confirm each gear distribution situation of gearbox, to reach AMT
Vehicle stabilization reliably selects operation of putting into gear.The invention is disadvantageous in that above-mentioned control method can not solve fluid drive
Device gear shifting quality inconsistence problems as caused by the consistency of components do not have automatic transmission certain to gear shift zero
The bad adaptive control function of component consistency, increases production cost.
Summary of the invention
The present invention be in order to overcome the above deficiencies in the prior art, provide a kind of shift quality consistency it is good and
D shelves shift Learning Control Method at low cost.
To achieve the goals above, the invention adopts the following technical scheme:
A kind of D grades of shift Learning Control Method, including engine, gas pedal, gear-shifting solenoid valve, gear shift sleeve and
Automatic shift control unit TCU, the engine, gas pedal, gear-shifting solenoid valve and gear shift sleeve are and fluid drive
Control unit TCU connection is started in D grades of automatic transmission of gearshift procedure by automatic shift control unit TCU to calculate
Machine rotational speed difference calculates the deviation of practical shift time and desired shift time according to engine speed difference as judgment basis,
This deviation is come to carry out self study adjustment to gear-shifting solenoid valve as a feedback quantity, so as to adjust the pressure of gear shift sleeve
Power, so that gearshift procedure is carried out according to prior defined procedure.
D gear shift Learning Control Method of the invention has certain ability adaptive to parts difference, can
Guarantee the consistency of automatic transmission factory gear shifting quality；D gear shift Learning Control Method can be to gear shift parts wear
Caused by gear shifting quality be deteriorated, carry out gear shift parameters self study adjustment, thus guarantee automatic transmission keep one preferably change
Shelves quality；Reduce cost.
Preferably, specifically comprising the following steps:
(1) judge whether current gear is D grades, if it is, entering step in (2)；If it is not, then entering directly into
In step (11)；
(2) judge whether in shift process, if it is, entering step in (3)；If it is not, then judgement symbol position,
Gear transition flag position, counter T1 and counter T2 are reset, and are entered directly into step (11)；
(3) counter T1 and counter T2 start timing, judge whether counter T1 has reached nominal time T0, if
It is then to enter step in (4)；If it is not, then entering directly into step (11)；
(4) counter T1 is reset, while reads whether judgement symbol position is zero, if it is, entering step in (5)；
If it is not, then entering directly into step (11)；
(5) engine speed in the Continuous plus T0 time is poor, judge current gear whether at 1 grade, if it is, into
In step (6)；If it is not, then entering directly into step (14)；
(6) target gear is judged whether at 2 grades, if it is, entering step in (7)；If it is not, then entering directly into
In step (11)；
(7) judge whether gas pedal aperture is within a certain range, if it is, entering step in (8)；If no
It is, then judgement symbol position 1 that gear transition flag position, counter T1 and counter T2 are reset, and enter directly into step
(11) in；
(8) reading gear transition flag position can no be zero, if it is, entering step in (9)；If it is not, then directly
It enters in step (12)；
(9) judge whether to meet present engine rotational speed difference less than calibration value 1 and in a upper engine speed difference and upper
Any one is greater than calibration value 2 among upper engine speed difference, if it is, entering step in (10)；If it is not, then
It enters directly into step (11)；
(10) the gear shift time started is calculated, and calculates the deviation of practical beginning shift time and expectation beginning shift time
Value is carried out the output of gear-shifting solenoid valve duty ratio by interpolation table look-up module, then saved into ram space, while by gear
Transition flag position 1, and enter in step (11)；
(11) terminate entire Self-learning control process；
(12) judge whether to meet present engine rotational speed difference greater than calibration value 3 and in a upper engine speed difference and upper
Any one is less than calibration value 4 among upper engine speed difference, if it is, entering step in (13)；If it is not, then
It enters directly into step (11)；
(13) the shift end time is calculated, calculates the gear shift duration, and calculate practical shift time and desired gear shift
The deviation of time is carried out the output of gear-shifting solenoid valve duty ratio by interpolation table look-up module, then saved into ram space,
Judgement symbol position and counter T2 are set 1 simultaneously, gear transition flag position is reset, and is entered in step (11)；
(14) current gear is judged whether at 2 grades, if it is, entering step in (15)；If it is not, then being directly entered
To in step (11)；
(15) target gear is judged whether at 3 grades, if it is, entering step in (7)；If it is not, then being directly entered
To in step (11).
Preferably, judgement symbol position is for judging whether to meet precondition in step (2), if it is, judgement
Flag bit is zero；If it is not, then judgement symbol position 1；Gear transition flag position for judging whether gear starts to convert, if
It is that then gear transition flag position is zero；If it is not, then gear transition flag position 1；Counter T1 is for calculating engine speed
Difference；Counter T2 is for calculating shift time.
Preferably, the nominal time T0 refers to the time being manually set, for calculating T0 in step (3)
The rotational speed difference of time intrinsic motivation.
Preferably, the engine speed difference in the Continuous plus T0 time refers to the every meter of counter T1 in step (5)
It counts to after engine speed difference of nominal time T0 calculating, counter T1 is counted again after resetting, until counting down to again
Engine speed of nominal time T0 calculating is poor, and so on, carry out Continuous plus.
Preferably, the particular range of gas pedal aperture refers to current gear to target gear institute in step (7)
The gas pedal opening value needed.
Preferably, calibration value 1 is begun to switch to needed for target gear lower than current gear to be started in step (9)
Machine rotational speed difference, it is poor that calibration value 2 is greater than or equal to engine speed needed for current gear begins to switch to target gear.
Preferably, the input quantity of interpolation table look-up module is to calculate the resulting time in step (10) and step (13)
Deviation, output quantity are the deviant of gear-shifting solenoid valve duty ratio.
Preferably, in step (12), hair needed for calibration value 3 is greater than or equal to current gear converting into target gear
Motivation rotational speed difference, engine speed needed for calibration value 4 is lower than current gear converting into target gear are poor.
Preferably, in step (13), by the deviant of gear-shifting solenoid valve duty ratio in step (10) and step (13)
In the deviant of gear-shifting solenoid valve duty ratio be added, obtain the deviant of final gear-shifting solenoid valve duty ratio and save to RAM
In space.
The beneficial effects of the present invention are: having certain ability adaptive to parts difference, it is ensured that automatic to become
The consistency of fast device factory gear shifting quality；Can the gear shifting quality caused by gear shift parts wear be deteriorated, carry out gear shift parameters
Self study adjustment, to guarantee that automatic transmission keeps a preferable gear shifting quality；Reduce cost.
Detailed description of the invention
Fig. 1 is control flow chart of the invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and detailed description.
In embodiment as described in Figure 1, a kind of D grades of shift Learning Control Method, including engine, gas pedal, change
Shelves solenoid valve, gear shift sleeve and automatic shift control unit TCU, engine, gas pedal, gear-shifting solenoid valve and gear shift clutch
Device is connect with automatic shift control unit TCU, in D grades of automatic transmission of gearshift procedure, passes through automatic shift control list
First TCU is poor to calculate engine speed, and according to engine speed difference as judgment basis, calculating practical shift time changes with expectation
The deviation of shelves time comes this deviation as a feedback quantity to carry out self study adjustment to gear-shifting solenoid valve, to adjust
The pressure of whole gear shift sleeve, so that gearshift procedure is carried out according to prior defined procedure.Specifically comprise the following steps:
(1) judge whether current gear is D grades, if it is, entering step in (2)；If it is not, then entering directly into
In step (11)；
(2) judge whether in shift process, if it is, entering step in (3)；If it is not, then judgement symbol position,
Gear transition flag position, counter T1 and counter T2 are reset, and are entered directly into step (11)；Wherein: judgement symbol
Position is for judging whether to meet precondition, if it is, judgement symbol position is zero；If it is not, then judgement symbol position 1；Shelves
Position transition flag position is for judging whether gear starts to convert, if it is, gear transition flag position is zero；If it is not, then shelves
Position transition flag position 1；Counter T1 is poor for calculating engine speed；Counter T2 is for calculating shift time；
(3) counter T1 and counter T2 start timing, judge whether counter T1 has reached nominal time T0, if
It is then to enter step in (4)；If it is not, then entering directly into step (11)；Wherein: what the nominal time T0 referred to
It is the time being manually set, for calculating the rotational speed difference of T0 time intrinsic motivation；
(4) counter T1 is reset, while reads whether judgement symbol position is zero, if it is, entering step in (5)；
If it is not, then entering directly into step (11)；
(5) engine speed in the Continuous plus T0 time is poor, judge current gear whether at 1 grade, if it is, into
In step (6)；If it is not, then entering directly into step (14)；Wherein: the engine speed in the Continuous plus T0 time is poor
Refer to that counter T1 is often count down to after engine speed difference of nominal time T0 calculating, counter T1 is counted again after resetting
Number, it is poor until counting down to engine speed of nominal time T0 calculating again, and so on, carry out Continuous plus；
(6) target gear is judged whether at 2 grades, if it is, entering step in (7)；If it is not, then entering directly into
In step (11)；
(7) judge whether gas pedal aperture is within a certain range, if it is, entering step in (8)；If no
It is, then judgement symbol position 1 that gear transition flag position, counter T1 and counter T2 are reset, and enter directly into step
(11) in；Wherein: gas pedal aperture needed for the particular range of gas pedal aperture refers to current gear to target gear
Value；
(8) reading gear transition flag position can no be zero, if it is, entering step in (9)；If it is not, then directly
It enters in step (12)；
(9) judge whether to meet present engine rotational speed difference less than calibration value 1 and in a upper engine speed difference and upper
Any one is greater than calibration value 2 among upper engine speed difference, if it is, entering step in (10)；If it is not, then
It enters directly into step (11)；Wherein: engine needed for calibration value 1 begins to switch to target gear lower than current gear turns
Speed difference, it is poor that calibration value 2 is greater than or equal to engine speed needed for current gear begins to switch to target gear；
(10) the gear shift time started is calculated, and calculates the deviation of practical beginning shift time and expectation beginning shift time
Value is carried out the output of gear-shifting solenoid valve duty ratio by interpolation table look-up module, then saved into ram space, while by gear
Transition flag position 1, and enter in step (11)；Wherein: the input quantity of interpolation table look-up module is that the calculating resulting time is inclined
Difference, output quantity are the deviant of gear-shifting solenoid valve duty ratio；
(11) terminate entire Self-learning control process；
(12) judge whether to meet present engine rotational speed difference greater than calibration value 3 and in a upper engine speed difference and upper
Any one is less than calibration value 4 among upper engine speed difference, if it is, entering step in (13)；If it is not, then
It enters directly into step (11)；Wherein: engine needed for calibration value 3 is greater than or equal to current gear converting into target gear
Rotational speed difference, engine speed needed for calibration value 4 is lower than current gear converting into target gear are poor；
(13) the shift end time is calculated, calculates the gear shift duration, and calculate practical shift time and desired gear shift
The deviation of time is carried out the output of gear-shifting solenoid valve duty ratio by interpolation table look-up module, then saved into ram space,
Judgement symbol position and counter T2 are set 1 simultaneously, gear transition flag position is reset, and is entered in step (11)；Wherein: interpolation
The input quantity of table look-up module is to calculate resulting reporting, and output quantity is the deviant of gear-shifting solenoid valve duty ratio；It will step
Suddenly the deviant of gear-shifting solenoid valve duty ratio is added with the deviant of the gear-shifting solenoid valve duty ratio in step (13) in (10), is obtained
To final gear-shifting solenoid valve duty ratio deviant and save into ram space；
(14) current gear is judged whether at 2 grades, if it is, entering step in (15)；If it is not, then being directly entered
To in step (11)；
(15) target gear is judged whether at 3 grades, if it is, entering step in (7)；If it is not, then being directly entered
To in step (11).
Above-mentioned D gear shift Learning Control Method has certain ability adaptive to parts difference, it is ensured that
The consistency of automatic transmission factory gear shifting quality；Above-mentioned D gear shift Self-learning control can cause gear shift parts wear
Gear shifting quality be deteriorated carry out gear shift parameters self study adjustment, thus guarantee automatic transmission keep a preferable gear shift product
Matter.It is inconsistent and due to gear shift clutch that the present invention solves automatic transmission gear shifting quality as caused by the consistency of components
The problem of gear shifting quality caused by device is worn is deteriorated, so that automatic transmission is on the basis not against input shaft rotating speed sensor
On, have certain to the bad adaptive control function of gear shift components consistency, reduced cost.
Claims (10)
1. a kind of D grades of shift Learning Control Method, characterized in that including engine, gas pedal, gear-shifting solenoid valve, gear shift
Clutch and automatic shift control unit TCU, the engine, gas pedal, gear-shifting solenoid valve and gear shift sleeve with
The TCU connection of automatic shift control unit, in D grades of automatic transmission of gearshift procedure, by automatic shift control unit TCU come
It is poor to calculate engine speed, according to engine speed difference as judgment basis, calculates practical shift time and desired shift time
Deviation, using this deviation as a feedback quantity come to gear-shifting solenoid valve carry out self study adjustment, so as to adjust gear shift
The pressure of clutch, so that gearshift procedure is carried out according to prior defined procedure.
2. a kind of D grades of shifts Learning Control Method according to claim 1, characterized in that specifically comprise the following steps:
(1) judge whether current gear is D grades, if it is, entering step in (2)；If it is not, then entering directly into step
(11) in；
(2) judge whether in shift process, if it is, entering step in (3)；If it is not, then judgement symbol position, gear
Transition flag position, counter T1 and counter T2 are reset, and are entered directly into step (11)；
(3) counter T1 and counter T2 start timing, judge whether counter T1 has reached nominal time T0, if so,
It then enters step in (4)；If it is not, then entering directly into step (11)；
(4) counter T1 is reset, while reads whether judgement symbol position is zero, if it is, entering step in (5)；If
It is not then to enter directly into step (11)；
(5) engine speed in the Continuous plus T0 time is poor, judges current gear whether at 1 grade, if it is, entering step
(6) in；If it is not, then entering directly into step (14)；
(6) target gear is judged whether at 2 grades, if it is, entering step in (7)；If it is not, then entering directly into step
(11) in；
(7) judge whether gas pedal aperture is within a certain range, if it is, entering step in (8)；If it is not, then
Judgement symbol position 1, gear transition flag position, counter T1 and counter T2 are reset, and are entered directly into step (11)；
(8) reading gear transition flag position can no be zero, if it is, entering step in (9)；If it is not, then being directly entered
To in step (12)；
(9) judge whether to meet present engine rotational speed difference less than calibration value 1 and in a upper engine speed difference and upper one
Any one is greater than calibration value 2 among a engine speed difference, if it is, entering step in (10)；If it is not, then directly
It enters in step (11)；
(10) the gear shift time started is calculated, and calculates the deviation of practical beginning shift time and expectation beginning shift time,
The output that gear-shifting solenoid valve duty ratio is carried out by interpolation table look-up module, then saves into ram space, while gear being converted
Mark position 1, and enter in step (11)；
(11) terminate entire Self-learning control process；
(12) judge whether to meet present engine rotational speed difference greater than calibration value 3 and in a upper engine speed difference and upper one
Any one is less than calibration value 4 among a engine speed difference, if it is, entering step in (13)；If it is not, then directly
It enters in step (11)；
(13) the shift end time is calculated, calculates the gear shift duration, and calculate practical shift time and desired shift time
Deviation, by interpolation table look-up module carry out gear-shifting solenoid valve duty ratio output, then save into ram space, simultaneously
Judgement symbol position and counter T2 are set 1, gear transition flag position is reset, and is entered in step (11)；
(14) current gear is judged whether at 2 grades, if it is, entering step in (15)；If it is not, then entering directly into step
Suddenly in (11)；
(15) target gear is judged whether at 3 grades, if it is, entering step in (7)；If it is not, then entering directly into step
Suddenly in (11).
3. a kind of D grades of shifts Learning Control Method according to claim 2, characterized in that in step (2), judgement
Flag bit is for judging whether to meet precondition, if it is, judgement symbol position is zero；If it is not, then judgement symbol position
1；Gear transition flag position is for judging whether gear starts to convert, if it is, gear transition flag position is zero；If not,
Then gear transition flag position 1；Counter T1 is poor for calculating engine speed；Counter T2 is for calculating shift time.
4. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (3), institute
The nominal time T0 stated refers to the time being manually set, for calculating the rotational speed difference of T0 time intrinsic motivation.
5. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (5), even
The continuous engine speed difference calculated in the T0 time refers to that counter T1 often count down to nominal time T0 and calculates engine turn
After speed difference, counter T1 is counted again after resetting, poor until counting down to engine speed of nominal time T0 calculating again,
And so on, carry out Continuous plus.
6. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (7), oil
Gas pedal opening value needed for the particular range of door pedal opening refers to current gear to target gear.
7. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (9), mark
Engine speed needed for definite value 1 begins to switch to target gear lower than current gear is poor, and calibration value 2 is greater than or equal to current shelves
Engine speed needed for position begins to switch to target gear is poor.
8. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (10) and step
Suddenly in (13), the input quantity of interpolation table look-up module is to calculate resulting reporting, and output quantity is gear-shifting solenoid valve duty ratio
Deviant.
9. a kind of D grades of shifts Learning Control Method according to claim 2 or 3, characterized in that in step (12),
Engine speed needed for calibration value 3 is greater than or equal to current gear converting into target gear is poor, and calibration value 4 is lower than current gear
Engine speed needed for converting into target gear is poor.
10. a kind of D grades of shifts Learning Control Method according to claim 8, characterized in that, will in step (13)
The deviant of gear-shifting solenoid valve duty ratio is added with the deviant of the gear-shifting solenoid valve duty ratio in step (13) in step (10),
It obtains the deviant of final gear-shifting solenoid valve duty ratio and saves into ram space.
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| CN110778701A (en) * | 2019-09-26 | 2020-02-11 | 潍柴动力股份有限公司 | Control method and control device for vehicle transmission |
| CN111350813A (en) * | 2020-03-26 | 2020-06-30 | 泸州容大智能变速器有限公司 | Self-learning method for whole-vehicle off-line clutch of automatic transmission |
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| CN111350813A (en) * | 2020-03-26 | 2020-06-30 | 泸州容大智能变速器有限公司 | Self-learning method for whole-vehicle off-line clutch of automatic transmission |
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