CN108006217A - One kind, which is seted out, keeps off compress control method - Google Patents

One kind, which is seted out, keeps off compress control method Download PDF

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Publication number
CN108006217A
CN108006217A CN201711102863.XA CN201711102863A CN108006217A CN 108006217 A CN108006217 A CN 108006217A CN 201711102863 A CN201711102863 A CN 201711102863A CN 108006217 A CN108006217 A CN 108006217A
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China
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msub
mrow
pressure
current value
data
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CN201711102863.XA
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Chinese (zh)
Inventor
曹龙
熊杰
唐忌
宁甲奎
张广辉
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FAW Group Corp
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FAW Group Corp
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Priority to CN201711102863.XA priority Critical patent/CN108006217A/en
Publication of CN108006217A publication Critical patent/CN108006217A/en
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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
    • F16H61/0213—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 characterised by the method for generating shift signals
    • 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
    • F16H2061/0075—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 a particular control method
    • F16H2061/009—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 a particular control method using formulas or mathematic relations for calculating parameters

Abstract

Set out the present invention provides one kind and keep off compress control method, including：The correspondence of electric current of the acquisition standard gearbox under different set oil temperature and different working connection pressure and gear pressure of seting out, generates code test tables of data；Based on the work condition state residing for the code test tables of data and gearbox to be measured generated, the standard gearbox is determined in order to reach the base current exported required for pre-set commands dislodging gear pressure；The off-line test data of the valve block of the off-line test data of valve block based on the standard gearbox and the gearbox to be measured and the pre-set commands, which are seted out, keeps off the compensation electric current for the dislodging gear pressure that pressure determines the gearbox to be measured；Identified base current is added with compensation electric current and value is determined as the control electric current that the gearbox to be measured is seted out under gear pressure in default oil temperature, default working connection pressure and pre-set commands.The present invention can accurately control dislodging gear pressure control electric current.

Description

One kind, which is seted out, keeps off compress control method
Technical field
The invention belongs to the control technology field of wet-type double-clutch automatic speed-change device, is related to a kind of hydraulic system dislodging gear The accuracy control method of pressure.
Background technology
Wet-type dual-clutch transmission is familiar as a kind of automatic transmission scheme, its structure.The speed change In device system, the effect for gear pressure of seting out is to provide power for the dislodging gear action of whole transmission system.Set out and keep off pressure Accurate control is to ensure that whole transmission system normally performs the basis of dislodging gear action.Gear pressure of seting out generally passes through solenoid valve It is adjusted, gear pressure of seting out is changed by the size of current of electromagnetic valve for adjusting.Due in solenoid valve production process, it is difficult to Ensure conformity of production, the characteristic of each solenoid valve understands some differences, it is therefore desirable to when the production of each solenoid valve is offline, to it Carry out off-line test.In order to ensure the operability of off-line test and rapidity, take fix a specific condition (oil temperature, Working connection pressure), test electric current and actual set out keep off the correspondence of pressure, and using this correspondence as each hydraulic valve block Off-line test data (EOL data).
Since EOL data are only the control electric current measured under specific oil temperature, working connection pressure and gear pressure of seting out Correspondence, and when oil temperature, working connection pressure change, the correspondence of electric current and gear pressure of seting out can change.And There is some difference for the characteristic of different valve blocks, it is desirable to accomplishes in all oil temperature sections of speed changer normal work, working connection pressure Section, be precisely controlled in order to control difficult point of gear pressure of seting out can be realized between different valve blocks.
The content of the invention
For above-mentioned technical problem, the present invention provides a kind of gear compress control method of seting out, and this method can be in speed changer All oil temperature sections of normal work, working connection pressure range, the accurate control for gear pressure of seting out can be realized between different valve blocks System.
The technical solution adopted by the present invention is：
The embodiment of the present invention provides a kind of gear compress control method of seting out, including：To selected standard gearbox in difference Tested under setting oil temperature, working connection pressure, obtain the electric current under different set oil temperature and different working connection pressure and pluck The correspondence for pressure of putting into gear, generates code test tables of data；The code test tables of data includes the first code test data Table and the second code test tables of data；Based on the work condition state residing for the code test tables of data and gearbox to be measured generated, The standard gearbox is determined in order to reach the base current exported required for pre-set commands dislodging gear pressure；Wherein, the work Condition state is the state seted out in default oil temperature, default working connection pressure and pre-set commands under gear pressure；Become based on the standard The off-line test data of the valve block of the off-line test data of the valve block of fast case and the gearbox to be measured and the pre-set commands Gear pressure of seting out determines the compensation electric current of the dislodging gear pressure of the gearbox to be measured；By identified base current and compensation electricity Stream is added obtain and value and is determined as the gearbox to be measured in default oil temperature, default working connection pressure and pre-set commands dislodging gear Control electric current under pressure.
Alternatively, the base current determines as follows：
According to the first preset function relation, determine at the first temperature, the pre-set commands are seted out corresponding to gear pressure First current value, the first preset function relation are characterized at a temperature of the first working connection pressure and first, first electric current The pressure of value and gear pressure of seting out in pre-set commands dislodging gear pressure, the first code test tables of data close to the pre-set commands Relation between power and its corresponding current value；
According to the second preset function relation, determine at the second temperature, the pre-set commands are seted out corresponding to gear pressure Second current value, the second preset function relation are characterized under the first working connection pressure and second temperature, second electric current The pressure of value and gear pressure of seting out in pre-set commands dislodging gear pressure, the first code test tables of data close to the pre-set commands Relation between power and its corresponding current value；
According to the 3rd preset function relation, determine under the default oil temperature, the pre-set commands, which are seted out, keeps off pressure institute Corresponding 3rd current value, the 3rd preset function relation are characterized under the first working connection pressure and default oil temperature, and described Three current values and the first temperature, second temperature, default relation between oil temperature, the first current value and the second current value；
According to the 4th preset function relation, determine at the first temperature, the pre-set commands are seted out corresponding to gear pressure 4th current value, the 4th preset function relation are characterized at a temperature of the second working connection pressure and first, the 4th electric current Value with it is default set out keep off in pressure, the second code test tables of data close to the pre-set commands set out gear pressure pressure and Relation between its corresponding current value；
According to the 5th preset function relation, determine at the second temperature, the pre-set commands are seted out corresponding to gear pressure 5th current value, the 5th preset function relation are characterized under the second working connection pressure and second temperature, the 5th electric current Value with it is default set out keep off in pressure, the second code test tables of data close to the pre-set commands set out gear pressure pressure and Relation between its corresponding current value；
According to the 6th preset function relation, determine under the default oil temperature, the pre-set commands, which are seted out, keeps off pressure institute Corresponding 6th current value, the 6th preset function relation are characterized under the second working connection pressure and default oil temperature, and described Six current values and the first temperature, second temperature, default relation between oil temperature, the 4th current value and the 5th current value；According to Seven preset function relations, determine the base current；The base current characterize the base current and first current value, 6th current value, default relation between oil temperature, the first temperature and second temperature；
Wherein, the first working connection pressure and the second working connection pressure is described in the code test tables of data Two nearest pressure of default working connection pressure, first temperature and the second temperature are in the code test tables of data Two temperature nearest from the default oil temperature；
The compensation electric current is determined by following steps：
According to the 8th preset function relation, valve block of the pre-set commands dislodging gear pressure in the standard gearbox is determined Off-line test data in corresponding the 8th current value, the 7th preset function relation characterize the 8th current value with it is pre- If close to pre-set commands dislodging gear pressure in the off-line test data of the valve block of order dislodging gear pressure, standard gearbox Relation between pressure and its corresponding current value；
According to the 9th preset function relation, valve block of the pre-set commands dislodging gear pressure in the gearbox to be measured is determined Off-line test data in corresponding the 9th current value, the 9th preset function relation characterize the 9th current value with it is pre- If close to pre-set commands dislodging gear pressure in the off-line test data of the valve block of order dislodging gear pressure, gearbox to be measured Relation between pressure and its corresponding current value；
Based on the tenth preset function relation, the current offset values are determined, described in the 9th preset function relation characterization Relation between current offset values and the 8th current value and the 9th current value.
Alternatively, the first preset function relation is represented by following formula (1)：
Wherein, P11For the first temperature T in the first code test tables of data1In lower measured test data, distance Pre-set commands set out gear pressure P recently and the pressure value smaller than P；P12For the first temperature T in the first code test tables of data1 In lower measured test data, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I11For described first Pressure P in code test tables of data11Corresponding current value；I12For pressure P in the first code test tables of data12Institute is right The current value answered；IaGear pressure P is seted out in the first working connection pressure and the first temperature T for the pre-set commands1Lower corresponding electricity Flow valuve；
The second preset function relation is represented by following formula (2)：
Wherein, P21For second temperature T in the first code test tables of data2In lower measured test data, distance Pre-set commands set out gear pressure P recently and the pressure value smaller than P；P22For second temperature T in the first code test tables of data2 In lower measured test data, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I21For described first Pressure P in code test tables of data21Corresponding current value；I22For pressure P in the first code test tables of data22Institute is right The current value answered；IbGear pressure P is seted out in the first working connection pressure and second temperature T for the pre-set commands2Lower corresponding electricity Flow valuve；
The 3rd preset function relation is represented by following formula (3)：
Wherein, IabFor the pre-set commands set out gear pressure P under the first working connection pressure and default oil temperature T it is corresponding Current value.
Alternatively, the 4th preset function relation is represented by following formula (4)：
Wherein, P31For the first temperature T in the second code test tables of data1In lower measured test data, distance Pre-set commands set out gear pressure P recently and the pressure value smaller than P；P32For the first temperature T in the second code test tables of data1 In lower measured test data, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I31For described second Pressure P in code test tables of data31Corresponding current value；I32For pressure P in the second code test tables of data32Institute is right The current value answered；IcGear pressure P is seted out in the second working connection pressure and the first temperature T for the pre-set commands1Lower corresponding electricity Flow valuve；
The 5th preset function relation is represented by following formula (5)：
Wherein, P41For second temperature T in the second code test tables of data2In lower measured test data, distance Pre-set commands set out gear pressure P recently and the pressure value smaller than P；P42For second temperature T in the second code test tables of data2 In lower measured test data, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I41For described second Pressure P in code test tables of data41Corresponding current value；I42For pressure P in the second code test tables of data42Institute is right The current value answered；IdGear pressure P is seted out in the second working connection pressure and second temperature T for the pre-set commands2Lower corresponding electricity Flow valuve；
The 6th preset function relation is represented by following formula (6)：
Wherein, IcdFor the pre-set commands set out gear pressure P under the second working connection pressure and default oil temperature T it is corresponding Current value.
Alternatively, the 7th preset function relation is represented by following formula (7)：
Wherein, IbaseFor under default working connection pressure, default oil temperature, the pre-set commands are seted out corresponding to gear pressure P Base current.
Alternatively, the 8th preset function relation is represented by following formula (8)：
Wherein, Pb1It is nearest to keep off pressure P apart from pre-set commands dislodging in the off-line test data of the valve block of standard gearbox And the pressure value smaller than P；Pb2To set out gear pressure P most apart from pre-set commands in the off-line test data of the valve block of standard gearbox The near and pressure value bigger than P；Ib1For pressure P in the off-line test data of the valve block of standard gearboxb1Corresponding current value； Ib2For pressure P in the off-line test data of the valve block of standard gearboxb2Corresponding current value.
Alternatively, the 9th preset function relation is represented by following formula (9)：
Wherein, Pc1It is nearest to keep off pressure P apart from pre-set commands dislodging in the off-line test data of the valve block of gearbox to be measured And the pressure value smaller than P；Pc2To set out gear pressure P most apart from pre-set commands in the off-line test data of the valve block of gearbox to be measured The near and pressure value bigger than P；Ic1For pressure P in the off-line test data of the valve block of gearbox to be measuredc1Corresponding current value； Ic2For pressure P in the off-line test data of the valve block of gearbox to be measuredc2Corresponding current value.
Alternatively, the tenth preset function relation is represented by following formula (10)：
Ioffset=Ic-Ib (10)
Wherein, IoffsetFor the compensation electric current.
Gear compress control method provided in an embodiment of the present invention of seting out, it is oily in different set to the standard gearbox of selection Tested under temperature, working connection pressure, the correspondence for obtaining electric current between gear pressure of seting out, basis of formation test data Table, is then based on the off-line test data of the valve block of the basic test tables of data and standard gearbox and the valve of gearbox to be measured The off-line test data of block, the control electric current to the current working residing for gearbox to be measured calculate, and can ensure gear of seting out Pressure control electric current can speed changer work normally working connection pressure range, oil temperature section realize set out gear pressure it is accurate Control, and the otherness between hydraulic valve block can be covered.
Brief description of the drawings
Fig. 1 is that provided in an embodiment of the present invention set out keeps off the flow diagram of compress control method.
Embodiment
To make the technical problem to be solved in the present invention, technical solution and advantage clearer, below in conjunction with attached drawing and tool Body embodiment is described in detail.
Fig. 1 is that provided in an embodiment of the present invention set out keeps off the flow diagram of compress control method.As shown in Figure 1, this hair A kind of gear compress control method of seting out that bright embodiment provides, comprises the following steps：
S100, test selected standard gearbox under different set oil temperature, working connection pressure, obtains in difference The electric current under oil temperature and different working connection pressure and the correspondence for gear pressure of seting out are set, generates code test tables of data；Institute Stating code test tables of data includes the first code test tables of data and the second code test tables of data.
Standard gearbox can be selected by randomly selecting the gearbox of qualification.In the example of the present invention, generation Code test tables of data may include the first code test tables of data and the second code test tables of data, the two tables of data refer to Table under two working connection pressure adjacent with order dislodging gear pressure, such as require the dislodging shelves pressure under working connection pressure 9bar Power current value, then two test data tables under 7.5bar and 10bar may be selected.In an embodiment of the present invention, generation The form of first code test tables of data and the second code test tables of data can be as shown in table 1 below and 2：
Table 1：First code test tables of data
Table 2：
However, it is necessary to explanation, in the present invention, code test tables of data can be more than including two tables of data, and To include multiple, each working connection pressure spot corresponds to a tables of data, for example, engine bench test need working connection pressure 5bar, Tested respectively under 7.5bar, 10bar, 12.5bar ..., test different oil temperatures and the corresponding pressure of electric current under each working connection pressure Value, so as to generate multiple tables of data.
S200, the work condition state residing for based on the code test tables of data and gearbox to be measured generated, determine the mark The base current that quasi- gearbox keeps off required for pressure and exporting to reach pre-set commands to set out；Wherein, the work condition state be The state that default oil temperature, default working connection pressure and pre-set commands are seted out under gear pressure.
In this step, oil temperature, default working connection pressure and pre-set commands dislodging gear pressure are preset and refers to gearbox to be measured Oil temperature, working connection pressure and the order being presently in, which are seted out, keeps off pressure.Base current refer to standard gearbox with speed change to be measured Case is in current value corresponding under identical work condition state, and specifically, the base current can determine as follows：
S201, according to the first preset function relation, determine at the first temperature, pre-set commands gear pressure institute of seting out is right The first current value answered, the first preset function relation are characterized at a temperature of the first working connection pressure and first, and described first Current value is seted out with pre-set commands to be kept off in pressure, the first code test tables of data close to pre-set commands dislodging gear pressure Pressure and its corresponding current value between relation；
S202, according to the second preset function relation, determine at the second temperature, pre-set commands gear pressure institute of seting out is right The second current value answered, the second preset function relation are characterized under the first working connection pressure and second temperature, and described second Current value is seted out with pre-set commands to be kept off in pressure, the first code test tables of data close to pre-set commands dislodging gear pressure Pressure and its corresponding current value between relation；
S203, according to the 3rd preset function relation, determine under the default oil temperature, the pre-set commands are seted out gear pressure The 3rd current value corresponding to power, the 3rd preset function relation are characterized under the first working connection pressure and default oil temperature, institute State the 3rd current value and the first temperature, second temperature, default relation between oil temperature, the first current value and the second current value；
S204, according to the 4th preset function relation, determine at the first temperature, pre-set commands gear pressure institute of seting out is right The 4th current value answered, the 4th preset function relation are characterized at a temperature of the second working connection pressure and first, and the described 4th Current value and the pressure for gear pressure of seting out in default set out gear pressure, the second code test tables of data close to the pre-set commands Relation between power and its corresponding current value；
S205, according to the 5th preset function relation, determine at the second temperature, pre-set commands gear pressure institute of seting out is right The 5th current value answered, the 5th preset function relation are characterized under the second working connection pressure and second temperature, and the described 5th Current value and the pressure for gear pressure of seting out in default set out gear pressure, the second code test tables of data close to the pre-set commands Relation between power and its corresponding current value；；
S206, according to the 6th preset function relation, determine under the default oil temperature, the pre-set commands are seted out gear pressure The 6th current value corresponding to power, the 6th preset function relation are characterized under the second working connection pressure and default oil temperature, institute State the 6th current value and the first temperature, second temperature, default relation between oil temperature, the 4th current value and the 5th current value；
S207, according to the 7th preset function relation, determine the base current；The base current characterization basis electricity Stream and first current value, the 6th current value, default relation between oil temperature, the first temperature and second temperature；
Wherein, the first working connection pressure and the second working connection pressure is described in the code test tables of data Two nearest pressure of default working connection pressure, first temperature and the second temperature are in the code test tables of data Two temperature nearest from the default oil temperature.
Specifically, it is assumed that the oil temperature of gearbox to be measured is T, working connection pressure is L, order is seted out, and gear pressure is P, in standard The test data table under two working connection pressure L1, L2 nearest from current working connection pressure L is found in test data table, as above Shown in Tables 1 and 2.
Wherein, in table 1, T1、T2For two temperature spots nearest from current oil temperature T；P11For in T1At a temperature of from order Dislodging keeps off pressure P recently and the pressure value smaller than P；P12For in T1At a temperature of from order set out gear pressure P recently and the pressure bigger than P Force value；P21For in T2At a temperature of from order set out gear pressure P recently and the pressure value smaller than P；P22For in T2At a temperature of from order Dislodging keeps off pressure P recently and the pressure value bigger than P.In table 2, T1、T2For two temperature spots nearest from current oil temperature T； P31For in T1At a temperature of from order set out gear pressure P recently and the pressure value smaller than P；P32For in T1At a temperature of from order set out gear Pressure P recently and the pressure value bigger than P；P41For in T2At a temperature of from order set out gear pressure P recently and the pressure value smaller than P； P42For in T2At a temperature of from order set out gear pressure P recently and the pressure value bigger than P.
In this way, the code test data Tables 1 and 2 obtained according to step S100 is calculated to reach order dislodging gear pressure Power P, the standard gearbox need the solenoid valve control electric current I exportedbaseIt can be obtained by the following steps：
A. in L1Working connection pressure, T1At a temperature of have equilibrium relationships：T1 is calculated according to the equation At a temperature of the current value I that sets out corresponding to gear pressure of current ordera：
B. in L1Working connection pressure, T2At a temperature of have equilibrium relationships：T is calculated according to the equation2 At a temperature of the current value I that sets out corresponding to gear pressure of current orderb：
C. in L1There are equilibrium relationships at a temperature of working connection pressure, T：Calculated according to the equation in L1 Under working connection pressure, under T oil temperatures, the control valve electric current I corresponding to order dislodging gear pressure Pab：
D. in L2Working connection pressure, T1At a temperature of have equilibrium relationships：T is calculated according to the equation1 At a temperature of the current value I that sets out corresponding to gear pressure of current orderc：
E. in L2Working connection pressure, T2At a temperature of have equilibrium relationships：T is calculated according to the equation2 At a temperature of the current value I that sets out corresponding to gear pressure of current orderd：
F. in L2There are equilibrium relationships at a temperature of working connection pressure, T：Calculated according to the equation in L2 Under working connection pressure, under T oil temperatures, the control valve electric current I corresponding to order dislodging gear pressure Pcd：
G. there are equilibrium relationships at a temperature of L working connections pressure, T：Calculated according to the equation in L Under working connection pressure, under T oil temperatures, the control valve electric current I corresponding to order dislodging gear pressure Pbase：
First preset function relation to the 7th preset function relation can correspond to above-mentioned formula (1) to (7), the first main oil respectively Road pressure and the second working connection pressure can correspond to above-mentioned L respectively1And L2, the first temperature and second temperature can correspond to above-mentioned respectively T1And T2, default oil temperature can correspond to above-mentioned oil temperature T, and default working connection pressure can correspond to above-mentioned working connection pressure L, pre-set commands Gear pressure of seting out can correspond to mentioned order dislodging gear pressure P.
Under S300, the off-line test data of valve block and the valve block of the gearbox to be measured based on the standard gearbox Line testing number is according to this and the pre-set commands set out and keep off the compensation electric current for the dislodging gear pressure that pressure determines the gearbox to be measured.
In this step, the compensation electric current can be determined by following steps：
S301, according to the 8th preset function relation, determine that the pre-set commands set out gear pressure in the standard gearbox Valve block off-line test data in corresponding the 8th current value, the 7th preset function relation characterizes the 8th electric current Value is kept off with seting out in pre-set commands dislodging gear pressure, the off-line test data of the valve block of standard gearbox close to the pre-set commands Relation between the pressure of pressure and its corresponding current value；
S302, according to the 9th preset function relation, determine that the pre-set commands set out gear pressure in the gearbox to be measured Valve block off-line test data in corresponding the 9th current value, the 9th preset function relation characterizes the 9th electric current Value is kept off with seting out in pre-set commands dislodging gear pressure, the off-line test data of the valve block of gearbox to be measured close to the pre-set commands Relation between the pressure of pressure and its corresponding current value；
S303, based on the tenth preset function relation, determine the current offset values, the 9th preset function relation characterization Relation between the current offset values and the 8th current value and the 9th current value.
Since the EOL data of valve block reflect the property difference between valve block, when valve block characteristic and the mark of gearbox to be measured The characteristic of the valve block of quasi- gearbox difference when, it is necessary to using two valve blocks EOL data (the EOL data of two valve blocks Form can be as shown in table 3 below and table 4), and the dislodging gear pressure gauge of order calculates the set out electric current of gear pressure of controlled sample case and mends Repay value.
Table 3：The EOL data of the valve block of standard gearbox
Electric current Set out and keep off pressure
…… ……
…… ……
Ib1 Pb1
Ib2 Pb2
…… ……
…… ……
Wherein, Pb2Set out for distance order in 3 standard gearbox valve block EOL data of table and keep off nearest and bigger than the P pressures of pressure P Force value；Pb1Set out for distance order in 3 standard gearbox valve block EOL data of table and keep off nearest and smaller than the P pressure values of pressure P；Ib2 For pressure P in 3 standard gearbox valve block EOL data of tableb2Corresponding current value；Ib1For 3 standard gearbox valve block EOL numbers of table According to middle pressure Pb1Corresponding current value.
Table 4：The EOL data of the valve block of gearbox to be measured
Electric current Set out and keep off pressure
…… ……
…… ……
Ic1 Pc1
Ic2 Pc2
…… ……
…… ……
Wherein, Pc2Set out for distance order in the gearbox valve block EOL data to be measured of table 4 and keep off nearest and bigger than the P pressures of pressure P Force value；Pc1Set out for distance order in the gearbox valve block EOL data to be measured of table 4 and keep off nearest and smaller than the P pressure values of pressure P；Ic2 For pressure P in the gearbox valve block EOL data to be measured of table 4c2Corresponding current value；Ic1For the gearbox valve block EOL numbers to be measured of table 4 According to middle pressure Pc1Corresponding current value.
Therefore, compensation electric current can be calculated especially by following steps one to step 3：
Step 1: according to the EOL data of 3 Plays gearbox valve block of table, there are following equilibrium relationships：Seted out by the equation calculation command and keep off pressure electricity corresponding in standard gearbox valve block EOL data Flow valuve Ib：
Step 2: according to the EOL data of gearbox valve block to be measured in table 4, there are following equilibrium relationships：It is right that order dislodging gear pressure institute in the gearbox valve block EOL data to be measured is calculated using the equation The current value I answeredc：
Step 3: will order set out gear pressure current value corresponding in the EOL data of the valve block of gearbox to be measured with Corresponding current value is made poor in the EOL data of the valve block of standard gearbox, tries to achieve current offset values Ioffset：
8th preset function relation to the tenth preset function relation can correspond to above-mentioned formula (8) to (10) respectively.
S400, by identified base current with compensation electric current be added and value be determined as the gearbox to be measured and exist The control electric current that default oil temperature, default working connection pressure and pre-set commands are seted out under gear pressure.
Specifically, the control that gearbox to be measured is seted out under gear pressure in default oil temperature, default working connection pressure and pre-set commands Electric current I processed can be obtained by following formula (11)：
It is to sum up, provided by the invention that dislodging gear compress control method can there are currently no the feelings for gear pressure sensor of seting out in fact Under condition, working connection pressure range, oil temperature section in speed changer normal work realize the accurate control for gear pressure of seting out.And Speed changer where realizing each hydraulic valve block by current compensation when the different hydraulic valve block characteristic of multiple speed changers has differences The accurate control for gear pressure of seting out.
Embodiment described above, is only the embodiment of the present invention, to illustrate technical scheme, rather than It is limited, protection scope of the present invention is not limited thereto, although having been carried out in detail to the present invention with reference to the foregoing embodiments Illustrate, it will be understood by those of ordinary skill in the art that：Any one skilled in the art the invention discloses In technical scope, it can still modify the technical solution described in previous embodiment or can readily occur in change, or Person carries out equivalent substitution to which part technical characteristic；And these modifications, change or replacement, do not make appropriate technical solution Essence departs from the spirit and scope of technical solution of the embodiment of the present invention, should be covered by the protection scope of the present invention.Therefore, Protection scope of the present invention answers the scope of the claims of being subject to.

Claims (8)

  1. The gear compress control method 1. one kind is seted out, it is characterised in that including：
    Selected standard gearbox is tested under different set oil temperature, working connection pressure, is obtained in different set oil temperature With the electric current under different working connection pressure and the correspondence for gear pressure of seting out, code test tables of data is generated；The standard examination Testing tables of data includes the first code test tables of data and the second code test tables of data；
    Based on the work condition state residing for the code test tables of data and gearbox to be measured generated, determine that the standard gearbox is Reach pre-set commands to set out the base current of output required for gear pressure；Wherein, the work condition state is in default oil temperature, in advance The state under gear pressure if working connection pressure and pre-set commands are seted out；
    The off-line test number of the valve block of the off-line test data of valve block based on the standard gearbox and the gearbox to be measured According to this and the pre-set commands set out and keep off the compensation electric current for the dislodging gear pressure that pressure determines the gearbox to be measured；
    By identified base current with compensation electric current be added and value be determined as the gearbox to be measured default oil temperature, The control electric current that default working connection pressure and pre-set commands are seted out under gear pressure.
  2. 2. gear compress control method according to claim 1 of seting out, it is characterised in that the base current by walking as follows It is rapid to determine：
    According to the first preset function relation, determine at the first temperature, first corresponding to the pre-set commands dislodging gear pressure Current value, the first preset function relation are characterized at a temperature of the first working connection pressure and first, first current value with Pre-set commands set out gear pressure, in the first code test tables of data close to the pre-set commands set out gear pressure pressure and Relation between its corresponding current value；
    According to the second preset function relation, determine at the second temperature, second corresponding to the pre-set commands dislodging gear pressure Current value, the second preset function relation are characterized under the first working connection pressure and second temperature, second current value with Pre-set commands set out gear pressure, in the first code test tables of data close to the pre-set commands set out gear pressure pressure and Relation between its corresponding current value；According to the 3rd preset function relation, determine under the default oil temperature, it is described default The 3rd current value that order is seted out corresponding to gear pressure, the 3rd preset function relation are characterized in the first working connection pressure and pre- If under oil temperature, the 3rd current value and the first temperature, second temperature, default oil temperature, the first current value and the second current value it Between relation；
    According to the 4th preset function relation, determine at the first temperature, the corresponding to the pre-set commands dislodging gear pressure the 4th Current value, the 4th preset function relation are characterized at a temperature of the second working connection pressure and first, the 4th current value with Set out the pressure of gear pressure and its right close to the pre-set commands in default set out gear pressure, the second code test tables of data Relation between the current value answered；
    According to the 5th preset function relation, determine at the second temperature, the corresponding to the pre-set commands dislodging gear pressure the 5th Current value, the 5th preset function relation are characterized under the second working connection pressure and second temperature, the 5th current value with Set out the pressure of gear pressure and its right close to the pre-set commands in default set out gear pressure, the second code test tables of data Relation between the current value answered；；
    According to the 6th preset function relation, determine under the default oil temperature, the pre-set commands are seted out corresponding to gear pressure The 6th current value, the 6th preset function relation is characterized under the second working connection pressure and default oil temperature, the 6th electricity Flow valuve and the first temperature, second temperature, default relation between oil temperature, the 4th current value and the 5th current value；It is pre- according to the 7th If functional relation, the base current is determined；The base current characterizes the base current and first current value, the 6th Current value, default relation between oil temperature, the first temperature and second temperature；
    Wherein, the first working connection pressure and the second working connection pressure are default described in the code test tables of data Two nearest pressure of working connection pressure, first temperature and the second temperature in the code test tables of data from institute State two nearest temperature of default oil temperature；
    The compensation electric current is determined by following steps：
    According to the 8th preset function relation, determine that the pre-set commands set out gear pressure under the valve block of the standard gearbox The 8th corresponding current value, the 7th preset function relation characterize the 8th current value and default life in line detection data Order set out gear pressure, standard gearbox valve block off-line test data in close to the pre-set commands set out gear pressure pressure And its relation between corresponding current value；According to the 9th preset function relation, determine that the pre-set commands dislodging gear pressure exists The 9th corresponding current value, the 9th preset function relation table in the off-line test data of the valve block of the gearbox to be measured Levy the 9th current value and pre-set commands set out gear pressure, gearbox to be measured valve block off-line test data in close to described Relation between the pressure of pre-set commands dislodging gear pressure and its corresponding current value；Based on the tenth preset function relation, determine The current offset values, the 9th preset function relation characterize the current offset values and the 8th current value and described the Relation between nine current values.
  3. 3. gear compress control method according to claim 2 of seting out, it is characterised in that the first preset function relation is led to Cross following formula (1) expression：
    <mrow> <msub> <mi>I</mi> <mi>a</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mn>12</mn> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mn>12</mn> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mn>12</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>11</mn> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mn>12</mn> </msub> <mo>-</mo> <msub> <mi>P</mi> <mn>11</mn> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>1</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, P11For the first temperature T in the first code test tables of data1In lower measured test data, distance is default Order sets out gear pressure P recently and the pressure value smaller than P；P12For the first temperature T in the first code test tables of data1Lower institute In the test data measured, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I11For first standard Pressure P in test data table11Corresponding current value；I12For pressure P in the first code test tables of data12Corresponding Current value；IaGear pressure P is seted out in the first working connection pressure and the first temperature T for the pre-set commands1Lower corresponding electric current Value；
    The second preset function relation is represented by following formula (2)：
    <mrow> <msub> <mi>I</mi> <mi>b</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mn>22</mn> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mn>22</mn> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mn>22</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>21</mn> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mn>22</mn> </msub> <mo>-</mo> <msub> <mi>P</mi> <mn>21</mn> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>2</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, P21For second temperature T in the first code test tables of data2In lower measured test data, distance is default Order sets out gear pressure P recently and the pressure value smaller than P；P22For second temperature T in the first code test tables of data2Lower institute In the test data measured, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I21For first standard Pressure P in test data table21Corresponding current value；I22For pressure P in the first code test tables of data22Corresponding Current value；IbGear pressure P is seted out in the first working connection pressure and second temperature T for the pre-set commands2Lower corresponding electric current Value；
    The 3rd preset function relation is represented by following formula (3)：
    <mrow> <msub> <mi>I</mi> <mrow> <mi>a</mi> <mi>b</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>I</mi> <mi>b</mi> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>T</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mi>b</mi> </msub> <mo>-</mo> <msub> <mi>I</mi> <mi>a</mi> </msub> <mo>)</mo> </mrow> <mrow> <mo>(</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>T</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>3</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, IabSet out for the pre-set commands and keep off pressure P electric currents corresponding under the first working connection pressure and default oil temperature T Value.
  4. 4. gear compress control method according to claim 3 of seting out, it is characterised in that the 4th preset function relation is led to Cross following formula (4) expression：
    <mrow> <msub> <mi>I</mi> <mi>c</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mn>32</mn> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mn>32</mn> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mn>32</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>31</mn> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mn>32</mn> </msub> <mo>-</mo> <msub> <mi>P</mi> <mn>31</mn> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>4</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, P31For the first temperature T in the second code test tables of data1In lower measured test data, distance is default Order sets out gear pressure P recently and the pressure value smaller than P；P32For the first temperature T in the second code test tables of data1Lower institute In the test data measured, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I31For second standard Pressure P in test data table31Corresponding current value；I32For pressure P in the second code test tables of data32Corresponding Current value；IcGear pressure P is seted out in the second working connection pressure and the first temperature T for the pre-set commands1Lower corresponding electric current Value；
    The 5th preset function relation is represented by following formula (5)：
    <mrow> <msub> <mi>I</mi> <mi>d</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mn>42</mn> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mn>42</mn> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mn>42</mn> </msub> <mo>-</mo> <msub> <mi>I</mi> <mn>41</mn> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mn>42</mn> </msub> <mo>-</mo> <msub> <mi>P</mi> <mn>41</mn> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>5</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, P41For second temperature T in the second code test tables of data2In lower measured test data, distance is default Order sets out gear pressure P recently and the pressure value smaller than P；P42For second temperature T in the second code test tables of data2Lower institute In the test data measured, pressure value nearest and bigger than P gear pressure P of seting out apart from pre-set commands；I41For second standard Pressure P in test data table41Corresponding current value；I42For pressure P in the second code test tables of data42Corresponding Current value；IdGear pressure P is seted out in the second working connection pressure and second temperature T for the pre-set commands2Lower corresponding electric current Value；
    The 6th preset function relation is represented by following formula (6)：
    <mrow> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mi>d</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>I</mi> <mi>d</mi> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>T</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mi>d</mi> </msub> <mo>-</mo> <msub> <mi>I</mi> <mi>c</mi> </msub> <mo>)</mo> </mrow> <mrow> <mo>(</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>T</mi> <mn>1</mn> </msub> <mo>)</mo> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>6</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, IcdSet out for the pre-set commands and keep off pressure P electric currents corresponding under the second working connection pressure and default oil temperature T Value.
  5. 5. gear compress control method according to claim 4 of seting out, it is characterised in that the 7th preset function relation is led to Cross following formula (7) expression：
    <mrow> <msub> <mi>I</mi> <mrow> <mi>b</mi> <mi>a</mi> <mi>s</mi> <mi>e</mi> </mrow> </msub> <mo>=</mo> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mi>d</mi> </mrow> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <mi>T</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mi>d</mi> </mrow> </msub> <mo>-</mo> <msub> <mi>I</mi> <mrow> <mi>b</mi> <mi>a</mi> <mi>s</mi> <mi>e</mi> </mrow> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>T</mi> <mn>2</mn> </msub> <mo>-</mo> <msub> <mi>T</mi> <mn>1</mn> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>7</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, IbaseFor the basis that under default working connection pressure, default oil temperature, the pre-set commands are seted out corresponding to gear pressure P Electric current.
  6. 6. gear compress control method according to claim 2 of seting out, it is characterised in that the 8th preset function relation is led to Cross following formula (8) expression：
    <mrow> <msub> <mi>I</mi> <mi>b</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mrow> <mi>b</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mrow> <mi>b</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mrow> <mi>b</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <msub> <mi>I</mi> <mrow> <mi>b</mi> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mrow> <mi>b</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <msub> <mi>P</mi> <mrow> <mi>b</mi> <mn>1</mn> </mrow> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>8</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, Pb1To set out gear pressure P recently apart from pre-set commands in the off-line test data of the valve block of standard gearbox and comparing P Small pressure value；Pb2To set out gear pressure P recently apart from pre-set commands in the off-line test data of the valve block of standard gearbox and The pressure value bigger than P；Ib1For pressure P in the off-line test data of the valve block of standard gearboxb1Corresponding current value；Ib2For Pressure P in the off-line test data of the valve block of standard gearboxb2Corresponding current value.
  7. 7. gear compress control method according to claim 6 of seting out, it is characterised in that the 9th preset function relation is led to Cross following formula (9) expression：
    <mrow> <msub> <mi>I</mi> <mi>c</mi> </msub> <mo>=</mo> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <mfrac> <mrow> <mo>(</mo> <msub> <mi>P</mi> <mrow> <mi>c</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <mi>P</mi> <mo>)</mo> <mo>(</mo> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <msub> <mi>I</mi> <mrow> <mi>c</mi> <mn>1</mn> </mrow> </msub> <mo>)</mo> </mrow> <mrow> <msub> <mi>P</mi> <mrow> <mi>c</mi> <mn>2</mn> </mrow> </msub> <mo>-</mo> <msub> <mi>P</mi> <mrow> <mi>c</mi> <mn>1</mn> </mrow> </msub> </mrow> </mfrac> <mo>-</mo> <mo>-</mo> <mo>-</mo> <mrow> <mo>(</mo> <mn>9</mn> <mo>)</mo> </mrow> </mrow>
    Wherein, Pc1To set out gear pressure P recently apart from pre-set commands in the off-line test data of the valve block of gearbox to be measured and comparing P Small pressure value；Pc2To set out gear pressure P recently apart from pre-set commands in the off-line test data of the valve block of gearbox to be measured and The pressure value bigger than P；Ic1For pressure P in the off-line test data of the valve block of gearbox to be measuredc1Corresponding current value；Ic2For Pressure P in the off-line test data of the valve block of gearbox to be measuredc2Corresponding current value.
  8. 8. gear compress control method according to claim 7 of seting out, it is characterised in that the tenth preset function relation is led to Cross following formula (10) expression：
    Ioffset=Ic-Ib (10)
    Wherein, IoffsetFor the compensation electric current.
CN201711102863.XA 2017-11-10 2017-11-10 One kind, which is seted out, keeps off compress control method Pending CN108006217A (en)

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CN104653767A (en) * 2013-11-15 2015-05-27 三菱电机株式会社 Shift Range Switching Apparatus
CN105937618A (en) * 2016-04-19 2016-09-14 中国第汽车股份有限公司 System pressure control method of wet dual-clutch automatic transmission

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JP2013057334A (en) * 2011-09-07 2013-03-28 Aisin Ai Co Ltd Dual clutch type automatic transmission and method for controlling shift of the same
DE102013222976A1 (en) * 2013-11-12 2015-05-13 Zf Friedrichshafen Ag Transmission device with multiple translations
CN104653767A (en) * 2013-11-15 2015-05-27 三菱电机株式会社 Shift Range Switching Apparatus
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CN114962632A (en) * 2022-05-27 2022-08-30 中国第一汽车股份有限公司 Gear engaging and disengaging force determining method and device, electronic equipment and storage medium
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Application publication date: 20180508