CN103062391A - Control method for gear preselection of dual clutch transmission - Google Patents
Control method for gear preselection of dual clutch transmission Download PDFInfo
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Abstract
The invention relates to a control method for gear preselection of a dual clutch transmission and a control method for the dual cultch transmission, in particular to a control method used for gear preselection performed on an unengaged shaft of the dual clutch transmission. The control method aims at guaranteeing economical and dynamic requirements of shift points and drivability and comfortableness of the whole vehicle. The control method mainly includes steps: judging a gear needing to be engaged on a target shaft according to the acceleration of the whole vehicle and a currently running gear; calculating the time T needed for reaching an actual shift point of a preselected gear; determining the time T1 needed for completing engagement of the preselected gear according to the rotating speed of the target shaft; determining the time T2 needed for a synchronizer to totally complete engagement of the preselected gear according to positions of the synchronizer; determining a safe time factor T3 according to T1; and adding T2 and T3, and if the sum is equal to T, ordering the synchronizer to start to execute engagement of the preselected gear.
Description
Technical field
The present invention relates to a kind of controlling method of double-clutch speed changer, particularly relate to a kind of controlling method of carrying out the gear preliminary election at unconjugated axle for double-clutch speed changer.
Background technique
Speed changer is a very important part in the modern transmission system, in order to improve the efficient of transmission system, in the recent period since, people have carried out considerable R﹠D work.Be accompanied by the development of modern control technology, wherein the development of quite a few all launches round double-clutch speed changer.The engage a gear of double-clutch speed changer is similar to common manual transmission.Gear in each gear train is arranged on separately the axle and can rotates freely around axle, and the gear next door is provided with synchronizer, and synchronizer can optionally mesh the gear of different gears, double-clutch speed changer.In order to realize automatic speed changing, the gear shift of each gear train is moved synchronizer by certain actuator and is realized.Reverse gearset comprises an input shaft gear, a counter shaft gear and an intermediate gear that arranges between them, thereby realizes the counter shaft gear counter-rotating and then realize the counter-rotating of output shaft and reverse gear.Although double-clutch speed changer has overcome the shortcoming of some conventional transmissions and new type auto speed changer, be the thing of a complexity to control and the adjusting of self-shifting double-clutch speed changer, and the desired comfortable target of passenger did not reach yet in the past.At present, in the regulating and controlling field to double clutch a large amount of patent applications is arranged also, for example U.S. BorgWarner Inc is respectively CN1530570A at the publication number that China proposes, CN1526976A, CN1523253A, the open time is three applications for a patent for invention in 2004, Shanghai Automotive Transmission Co is CN101943228A at the publication number that China proposes, open day is on January 12nd, 2011, denomination of invention is the clutch closed loop control system of two clutch gearboxes and the application for a patent for invention of controlling method thereof, and also having in addition the applicant is 201210082148.5 at the application number that proposes before, application publication number is CN102606724A, Shen Qing Publication day is the Chinese invention patent application on July 25th, 2012.In addition, domestic also have the people to deliver relevant paper at the double-clutch speed changer control field, title such as Southwestern University Li Jun China is the master thesis of " dual-clutch transmission control system design and research ", this piece paper elaborates the control system of dual-clutch transmission, and this piece paper can retrieve in the Baidu library.It is worth mentioning that, in the approaching prior art of the control technique in the double-clutch speed changer, the control system that the AMT automatic transmission adopts and controlling method all are to be worth using for reference.
In the research and development to double-clutch speed changer, block selecting and pre-gear selecting have very large impact to car load rideability, manoeuvring performance and fuel-economy performance.Inappropriate shifting points not only can impair fuel economy and the power character of car load, and can cause the too high noise that brings of engine speed in running, or excessively lowly causes engine misses, has a strong impact on car load travelling comfort and cornering ability.Traditional manual transmission gear shift is fully by driver's operation, when the driver wants to switch gear, can carry out cut-off clutch, gear excision, engage a gear and in conjunction with this a series of actions of clutch.AMT automatic transmission gear shift control sequential is then simulated this process by auto-programming.DCT gearshift sequential also substantially so, also need to carry out clutch after gear hangs up switches again, but the advanced part of DCT is that it has the axle that two clutches and two can alternation, therefore, before clutch switches, DCT can be on unconjugated axle first combining target gear and on car load power without any impact.At this moment, when the command execution gear is in conjunction with seeming particularly important.Front US Patent No. 6909955(CN200410005883) provides a kind of scheme to provide and satisfied continuously accurate gearshift time and the control of shifting points requirement in the gearshift.This invention has proposed a kind of clutch to be switched and thereby the synchronizer engage a gear carries out timing and compensates shifting points and calculate the suitable method of sending the opportunity that gearshift orders.But the method does not consider that the synchronizer engage a gear is unsuccessfully on the impact of shifting points.If can not realize accurate shifting points control, then may damage fuel economy and gearshift performance under the driving conditions.The method that the present invention proposes, actual shifting points has been the shift point that clutch is carried out overcompensation switching time, because clutch is substantially only relevant with the gearshift type switching time, can divide according to four kinds of gearshift types, be that power character upgrades, power character lowers category, and non-power character upgrades and non-power character lowers category, so this section period compares better definite.But the synchronizer engage a gear time then not necessarily, engage a gear smoothly in the situation each gear combination time different, in the ill situation of engage a gear, carry out repeatedly engage a gear by control program, then can postpone the engage a gear time, so, if the synchronizer engage a gear time is also compensated shifting points, then can cause the vehicle performances such as the inconsistent of shifting points and destruction Economy power character.Therefore, the method that the present invention proposes is to be before the target gear sends in the shifting points of clutch being carried out overcompensation switching time, according to acceleration the target gear is carried out anticipation and in advance combination, and combination time is reserved safety time, in case the synchronizer engage a gear unsuccessfully needs again engage a gear.
Summary of the invention
The technical problem to be solved in the present invention provides the controlling method of the double-clutch speed changer gear preliminary election of a kind of Economy that ensures shifting points and power character demand and car load cornering ability and travelling comfort.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, it comprises the steps:
(1) calculates the car load acceleration;
(2) judge the gear that needs combination on the target axle based on acceleration and current operational taps;
(3) basis arrives the needed time T of actual shifting points of the preliminary election gear of predicting when front output shaft rotating speed and acceleration calculation;
(4) determine to finish the preliminary election gear in conjunction with needed time T 1 according to target axle rotating speed;
(5) all finish the preliminary election gear in conjunction with needed time T 2 according to synchronizer location positioning synchronizer;
(6) determine safety time factor T3 according to T1;
(7) synchronizer is all finished the time T 2 and safety time factor T3 addition of the combination of preliminary election gear, if the value after the addition equals to reach the needed time T of actual shifting points, then the command synchronization device begins to carry out the combination of pre-gear selecting.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, wherein said step (2) comprises following steps:
If acceleration is greater than certain threshold values, the high gear of the current gear of preliminary election then;
If acceleration is less than certain threshold values, the low gear of the current gear of preliminary election then;
If acceleration is positioned in the middle of above-mentioned two threshold values scopes, then will be on the target axle preliminary election neutral, the gear that is about on the target axle makes the return trip empty.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, in the wherein said step (3), actual shifting points was for compensating the shifting points of clutch after switching time based on Engine torque or the definite basic shifting points of fuel characteristic.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, wherein said step (4) comprises following steps:
When carry out gear in conjunction with the time measure under specific axle rotating speed and finish specific gear in conjunction with the needed time, and in data sheet according to axle rotating speed and this time value of gear corresponding stored;
Next time synchronously the time measurement finish under the same rotational speed identical gear lock in time;
Lock in time of just having measured and initial lock in time are averaged, and will deposit data sheet average time in and replace a upper time value;
Each synchronizer in conjunction with the time redefine continuously average lock in time.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, wherein said step (5) comprises following steps:
If synchronizer is in the room, then T2 equals T1;
If synchronizer is in the other end opposite with the target location, namely be combined in the preliminary election gear and share on another gear of synchronizer, then T2 equals T1 and adds that synchronizer makes the return trip empty the time;
If synchronizer is on the target location, namely be combined with the gear that needs preliminary election, then T2 equals 0.
The controlling method of double-clutch speed changer gear of the present invention preliminary election, safety time factor T3 does not finish gear in conjunction with the multiple of needed time for this pre-gear selecting gear synchronizer does not comprise the time of making the return trip empty in the wherein said step (6), if synchronizer has been combined on the gear of required preliminary election at the very start, then T3 is 0.
The controlling method that the controlling method difference from prior art of double-clutch speed changer gear of the present invention preliminary election is double-clutch speed changer gear of the present invention preliminary election is before the target gear that compensated clutch switching time sends, according to the car load acceleration target gear is carried out anticipation, and in the safety time scope, on unconjugated axle, gear is carried out pre-combination, ensured Economy and power character demand and car load cornering ability and the travelling comfort of shifting points with this.The controlling method of double-clutch speed changer gear of the present invention preliminary election is switched clutch and the synchronizer engage a gear carries out timing and compensates shift point, thereby optimized the opportunity of sending shift command, the controlling method of double-clutch speed changer gear of the present invention preliminary election is to be before the target gear sends at the shift point that clutch is carried out overcompensation switching time, according to acceleration the target gear is carried out anticipation and in advance combination, and to combination time reservation safety time, in case the synchronizer engage a gear unsuccessfully needs again engage a gear.
Be described further below in conjunction with the controlling method of accompanying drawing to double-clutch speed changer gear of the present invention preliminary election.
Description of drawings
Fig. 1 is the structural representation of the double-clutch speed changer of controlling method control that can be by double-clutch speed changer gear of the present invention preliminary election;
Fig. 2 is the structural representation of hydraulic system of the double-clutch speed changer of controlling method control that can be by double-clutch speed changer gear of the present invention preliminary election;
Fig. 3 is the sequential chart of the controlling method of double-clutch speed changer gear of the present invention preliminary election;
Fig. 4 is the flow chart of the controlling method of double-clutch speed changer gear of the present invention preliminary election.
Embodiment
To understand the present invention in order being more convenient for, first machinery formation, the Hydraulic system and control system of double-clutch speed changer of the prior art to be explained at this.
Consist of except can be referring to the description in the file of pointing out in the background technique about the machinery of double-clutch speed changer, can also be 200910260370.8 at the application number that proposes before referring to the applicant, application publication number is CN101737462A, Shen Qing Publication day to be the Chinese invention patent application on June 16th, 2010, also can be referring to Fig. 1.Double-clutch speed changer as shown in Figure 1, comprise two clutches, be first clutch 11 and second clutch 12, the even number shelves countershaft 14, jack shaft 15 and the reversing auxiliary shaft 16 that also comprise input shaft 110, odd number shelves countershaft 13, be arranged in parallel with odd number shelves countershaft 13, also comprise a plurality of synchronizers, i.e. the first synchronizer 17, the second synchronizer 18 and the 3rd synchronizer 19.Double-clutch speed changer by selectable velocity ratio transmission from the moment of torsion of motor to output shaft, until on the wheel.Double-clutch speed changer transmits moment of torsion from motor on odd number shelves countershaft 13 or even number shelves countershaft 14 by first clutch 11 or second clutch 12.Gear on odd number shelves countershaft 13 and the even number shelves countershaft 14 all with jack shaft 15 on the gear constant engagement.Odd number shelves countershaft 13 and even number shelves countershaft 14 1 straight through the gear transmission on the jack shaft 15 to wheel.Odd number shelves countershaft 13 can be in transmission connection with jack shaft 15 by overrunning clutch 20 and the 3rd synchronizer 19, even number shelves countershaft 14 when the first synchronizer 17 or the second synchronizer 18 hang up shifting gear and jack shaft 15 be in transmission connection.If one of odd number shelves countershaft 13 and even number shelves countershaft 14 are transmitting moment of torsion to jack shaft 15, and there is gear to be hung up on them, so can be by reducing the moment of torsion on the front sequence clutch until sliding generations that rub, the moment of torsion that also increases simultaneously on the follow-up clutch realize gear switch, before the preorder clutch finger clutch here switches, just at that clutch of transmitting torque, it also can be called as the active service clutch, and another then is follow-up clutch.
When odd number shelves countershaft 13 just provides moment of torsion to jack shaft 15 by first clutch 11, and second clutch 12 is not when engaging, and the target gear is on the gear of even number shelves countershaft 14, and gear then need to be selected.This generic operation is called as gear to be selected, and also can be called pre-engage a gear, because it is not in the situation that affect vehicle operating and in advance gear had been hung up before switch clutch.
Therefore, an important link is exactly to realize pre-hung or the excision of gear by the first synchronizer 17, the second synchronizer 18 or the 3rd synchronizer 19 in handoff procedure.In the double-clutch speed changer as shown in fig. 1,5 synchronizers are arranged in fact, be respectively the second synchronizer 18 and the 3rd synchronizer 19 of paired setting, and first an independent synchronizer 17 that between forward gears and reverse gear, switches.The second synchronizer 18 and the 3rd synchronizer 19 are synchronizers of bi-directional drive, namely when from the centre left or can hang up the gear on the left side or the right when moving right.As for the first synchronizer 17 shown in Fig. 1 optimal way, moving to right can engage a gear, and when moving to left invalid (namely hanging neutral).
The control of speaking of within the present invention, general idea refers to electronic control component.Electronic control component itself has surpassed outside the scope described in the invention.In any case, it need to manage control logic, provides needed voltage, signal, hydraulic pressure to come double-clutch speed changer is operated.No matter be that clutch switches, or the gear selection, all need each clutch and each synchronizer are controlled.In order to realize control, change control signal into the control result, need hydraulic system to carry out, hydraulic system can be that 200910249994.X, application publication number are CN101709777A, Shen Qing Publication day to be the Chinese invention patent application on May 19th, 2010 at the application number that proposes before referring to the applicant, also can be referring to hydraulic system as shown in Figure 2.As shown in Figure 2, the first gear selects control solenoid valve 22 and the second gear to select control solenoid valve 23 to be preferably PWM-type (PWM).The PWM-type solenoid valve can provide a variable pressure by send pulse signal to solenoid valve.This solenoid valve is a kind of low-cost mode that can realize variable pressure control.The first gear selects control solenoid valve 22 and the second gear to select the oil pressure of control solenoid valve 23 to be provided by main pressure regulator valve 28, main pressure regulator valve 28 outputs be main oil pressure, and the oil of main pressure regulator valve 28 is provided by pump 29.By the variable pressure solenoid valve, the main oil pressure of main pressure regulator valve 28 outputs can be in minimum to changeably output between the maximum.Two variable pressure solenoid valves are arranged among Fig. 2, i.e. the first variable pressure solenoid valve 210 and the second variable pressure solenoid valve 211, they are used for the moment of torsion that transmits by first clutch actuator 213 and second clutch actuator 212 each clutch of control respectively.The purpose of main oil pressure control is exactly to make main oil pressure be higher than all the time the request pressure of the first variable pressure solenoid valve 210 and the second variable pressure solenoid valve 211.Similarly, main oil pressure will be higher than the first gear and selects control solenoid valve 22 and the second gear to select the request pressure of control solenoid valve 23 also very important.The first gear select control solenoid valve 22 and the second gear select control solenoid valve 23 according to the relative pressure state selectivity of the first variable pressure solenoid valve 210 and the second variable pressure solenoid valve 211 provide hydraulic pressure to gear selecting sequence valve 24, gear selecting sequence valve 24 provides a hydraulic coupling to select piston 25, third gear to select piston 26, the first gears to select piston 27, the second gear to select piston 25, third gear to select the first synchronizer 17, the second synchronizer 18 in the mobile respectively corresponding diagram 1 of piston 26, the movement of the 3rd synchronizer 19 to the second gear.
The control sequential of the controlling method of double-clutch speed changer gear of the present invention preliminary election as shown in Figure 3, actual shift command opportunity of sending is to compensate the shifting points of clutch after switching time, pre-gear selecting order was then sent before shifting points is sent, time difference between two orders is for can guarantee the time that the safe engage a gear of synchronizer is finished, this pre-gear selecting order at first comes thereby the target gear is carried out the gear that anticipation need on the unconjugated axle to determine combination based on acceleration, then determines when based on the synchronizer engage a gear time and sends the order of synchronizer engage a gear.
The control flow chart of the controlling method of double-clutch speed changer gear of the present invention preliminary election originates in procedure block 33 as shown in Figure 4; In the procedure block 34, calculate the car load acceleration according to the output shaft of gear-box rotating speed; In the procedure block 35, according to car load acceleration and the current operational taps target of prediction of gearbox gear, the below is called the preliminary election gear, if acceleration is greater than certain threshold values then a high gear of the current gear of preliminary election, the first gear of the current gear of preliminary election if acceleration is lower than certain threshold values, if accekeration is positioned at above-mentioned two scopes that threshold values is limit, then preliminary election neutral; In the procedure block 36, determine to arrive actual shifting points needed time T according to output shaft rotating speed and acceleration; In the procedure block 37, detect target axle rotating speed, i.e. unconjugated axle rotating speed; In the procedure block 38, determine that according to the target axle rotating speed that detects preliminary election gear (gear that needs combination) finishes the needed time T 1 of synchronizer engage a gear, this time is stored in take target axle rotating speed and target gear in the bivariate table of input, and after synchronizer is finished engage a gear each time all with on once same gear engage a gear time phase space average, and mean value stored in the bivariate table form is upgraded, as the predicted time of engage a gear next time; In the procedure block 39, finish the preliminary election gear in conjunction with needed time T 2 according to synchronizer shift fork location positioning synchronizer, if synchronizer shift fork position is in another gear one end that shares synchronizer with the preliminary election gear, then T2 equals the synchronizer time of making the return trip empty and adds synchronizer engage a gear time T 1, if the synchronizer shift fork mediates, i.e. room, then T2 equals T1, if synchronizer has been in the binding site of preliminary election gear, then T2 equals zero; In the procedure block 40, determine safety time factor T3 according to synchronizer in conjunction with gear time T 1, the safety time factor is to keep for the synchronizer engage a gear to lose efficacy and time of re-starting the engage a gear process, and therefore, T3 generally is made as the multiple of T1; In logic decision block 41, judge synchronizer finish preliminary election gear engage a gear time T 2 add safety time factor T3 whether with arrive the actual shifting points speed of a motor vehicle time from current vehicle speed and equate, if equate then send synchronizer in conjunction with pre-gear selecting order, otherwise return course piece 34 repeats said process.
Above-described embodiment is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technological scheme of the present invention all should fall in the definite protection domain of claims of the present invention.
Claims (6)
1. the controlling method of double-clutch speed changer gear preliminary election is characterized in that, comprises the steps:
(1) calculates the car load acceleration;
(2) judge the gear that needs combination on the target axle based on acceleration and current operational taps;
(3) basis arrives the needed time T of actual shifting points of the preliminary election gear of predicting when front output shaft rotating speed and acceleration calculation;
(4) determine to finish the preliminary election gear in conjunction with needed time T 1 according to target axle rotating speed;
(5) all finish the preliminary election gear in conjunction with needed time T 2 according to synchronizer location positioning synchronizer;
(6) determine safety time factor T3 according to T1;
(7) synchronizer is all finished the time T 2 and safety time factor T3 addition of the combination of preliminary election gear, if the value after the addition equals to reach the needed time T of actual shifting points, then the command synchronization device begins to carry out the combination of pre-gear selecting.
2. the controlling method of double-clutch speed changer gear according to claim 1 preliminary election is characterized in that, described step (2) comprises following steps:
If acceleration is greater than certain threshold values, the high gear of the current gear of preliminary election then;
If acceleration is less than certain threshold values, the low gear of the current gear of preliminary election then;
If acceleration is positioned in the middle of above-mentioned two threshold values scopes, then will be on the target axle preliminary election neutral, the gear that is about on the target axle makes the return trip empty.
3. the controlling method of double-clutch speed changer gear according to claim 2 preliminary election, it is characterized in that: in the described step (3), actual shifting points was for compensating the shifting points of clutch after switching time based on Engine torque or the definite basic shifting points of fuel characteristic.
4. the controlling method of double-clutch speed changer gear according to claim 3 preliminary election is characterized in that, described step (4) comprises following steps:
When carry out gear in conjunction with the time measure under specific axle rotating speed and finish specific gear in conjunction with the needed time, and in data sheet according to axle rotating speed and this time value of gear corresponding stored;
Next time synchronously the time measurement finish under the same rotational speed identical gear lock in time;
Lock in time of just having measured and initial lock in time are averaged, and will deposit data sheet average time in and replace a upper time value;
Each synchronizer in conjunction with the time redefine continuously average lock in time.
5. the controlling method of double-clutch speed changer gear according to claim 4 preliminary election is characterized in that, described step (5) comprises following steps:
If synchronizer is in the room, then T2 equals T1;
If synchronizer is in the other end opposite with the target location, namely be combined in the preliminary election gear and share on another gear of synchronizer, then T2 equals T1 and adds that synchronizer makes the return trip empty the time;
If synchronizer is on the target location, namely be combined with the gear that needs preliminary election, then T2 equals 0.
6. the controlling method of double-clutch speed changer gear according to claim 5 preliminary election, it is characterized in that: safety time factor T3 does not finish gear in conjunction with the multiple of needed time for this pre-gear selecting gear synchronizer does not comprise the time of making the return trip empty in the described step (6), if synchronizer has been combined on the gear of required preliminary election at the very start, then T3 is 0.
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| CN 201310019202 CN103062391A (en) | 2013-01-18 | 2013-01-18 | Control method for gear preselection of dual clutch transmission |
| CN201310263501.4A CN103291905B (en) | 2013-01-18 | 2013-06-27 | The controlling method of gear pre-selection for dual clutch transmission |
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| CN 201310019202 CN103062391A (en) | 2013-01-18 | 2013-01-18 | Control method for gear preselection of dual clutch transmission |
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| CN103062391A true CN103062391A (en) | 2013-04-24 |
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| CN201310263501.4A Active CN103291905B (en) | 2013-01-18 | 2013-06-27 | The controlling method of gear pre-selection for dual clutch transmission |
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| CN104019224A (en) * | 2014-06-12 | 2014-09-03 | 盛瑞传动股份有限公司 | Method and system for preventing clutch of automatic speed changer from being mistakenly engaged |
| CN104279309A (en) * | 2013-07-01 | 2015-01-14 | 上海汽车集团股份有限公司 | Method and device for controlling synchronizer in automatic mechanical gearbox |
| CN105156660A (en) * | 2015-09-18 | 2015-12-16 | 上海汽车变速器有限公司 | Safety control method of double-clutch transmission gear-engagement failures |
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| CN104154225A (en) * | 2014-07-17 | 2014-11-19 | 重庆长安汽车股份有限公司 | Method for controlling repeated gear engagement in DCT (dual clutch transmission) synchronizer gear engaging process |
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| DE10261872A1 (en) * | 2002-12-20 | 2004-07-01 | Volkswagen Ag | Process for shift control of an automated double clutch transmission |
| EP1450076A3 (en) * | 2003-02-21 | 2010-06-09 | Borgwarner, Inc. | Method of controlling a dual clutch transmission |
| JP4438431B2 (en) * | 2004-01-30 | 2010-03-24 | トヨタ自動車株式会社 | Transmission |
| CN102221084B (en) * | 2010-04-15 | 2014-12-31 | 通用汽车环球科技运作公司 | Control system and method for synchronization control in dual clutch transmissions |
| CN102606724A (en) * | 2012-03-26 | 2012-07-25 | 重庆青山工业有限责任公司 | Method for controlling wet type dual clutch transmission |
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- 2013-01-18 CN CN 201310019202 patent/CN103062391A/en active Pending
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| CN104279309A (en) * | 2013-07-01 | 2015-01-14 | 上海汽车集团股份有限公司 | Method and device for controlling synchronizer in automatic mechanical gearbox |
| CN104279309B (en) * | 2013-07-01 | 2017-04-26 | 上海汽车集团股份有限公司 | Method and device for controlling synchronizer in automatic mechanical gearbox |
| CN104019224A (en) * | 2014-06-12 | 2014-09-03 | 盛瑞传动股份有限公司 | Method and system for preventing clutch of automatic speed changer from being mistakenly engaged |
| CN106335501B (en) * | 2015-07-09 | 2020-12-25 | 现代自动车株式会社 | Method for controlling DCT shifting of vehicle |
| CN106335501A (en) * | 2015-07-09 | 2017-01-18 | 现代自动车株式会社 | Dct shifting control method for vehicle |
| CN105156660A (en) * | 2015-09-18 | 2015-12-16 | 上海汽车变速器有限公司 | Safety control method of double-clutch transmission gear-engagement failures |
| CN105156660B (en) * | 2015-09-18 | 2017-05-31 | 上海汽车变速器有限公司 | Double-clutch speed changer is put into gear the method for controlling security of failure |
| CN105840807A (en) * | 2016-04-22 | 2016-08-10 | 中国第汽车股份有限公司 | Gear-shifting control method based on acceleration compensation |
| CN105840807B (en) * | 2016-04-22 | 2018-04-20 | 中国第一汽车股份有限公司 | A kind of shift control method based on acceleration compensation |
| CN110173563A (en) * | 2018-02-21 | 2019-08-27 | 现代自动车株式会社 | Control method for the vehicle with DCT |
| CN110173563B (en) * | 2018-02-21 | 2021-07-06 | 现代自动车株式会社 | Control method for vehicle with DCT |
| WO2021023344A1 (en) * | 2019-08-06 | 2021-02-11 | Schaeffler Technologies AG & Co. KG | Method for determining an output torque in a drive system capable of being power shifted in a vehicle |
| US11703095B2 (en) | 2019-08-06 | 2023-07-18 | Schaeffler Technologies AG & Co. KG | Method for determining an output torque in a drive system capable of being power shifted in a vehicle |
| CN114838121A (en) * | 2022-05-31 | 2022-08-02 | 重庆长安汽车股份有限公司 | Control method and system for auxiliary gear engagement of wet-type double-clutch synchronizer and automobile |
| CN114838121B (en) * | 2022-05-31 | 2024-06-04 | 重庆长安汽车股份有限公司 | Control method and system for auxiliary gear engagement of wet double clutch synchronizer and automobile |
| CN115264043A (en) * | 2022-06-24 | 2022-11-01 | 三一重型装备有限公司 | Automatic synchronous calibration system and method for double gearboxes, vehicle and readable storage medium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103291905A (en) | 2013-09-11 |
| CN103291905B (en) | 2015-09-30 |
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Application publication date: 20130424 |