CN114922971A - Optimization method and device for DCT (discrete cosine transformation) gear shifting impact at low temperature - Google Patents
Optimization method and device for DCT (discrete cosine transformation) gear shifting impact at low temperature Download PDFInfo
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- CN114922971A CN114922971A CN202210432245.6A CN202210432245A CN114922971A CN 114922971 A CN114922971 A CN 114922971A CN 202210432245 A CN202210432245 A CN 202210432245A CN 114922971 A CN114922971 A CN 114922971A
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- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005457 optimization Methods 0.000 title claims abstract description 25
- 230000009466 transformation Effects 0.000 title abstract description 4
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000035939 shock Effects 0.000 claims description 15
- 230000002159 abnormal effect Effects 0.000 claims description 9
- 238000012546 transfer Methods 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000009193 crawling Effects 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 3
- 230000002411 adverse Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 208000034656 Contusions Diseases 0.000 abstract 1
- 230000009519 contusion Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0403—Synchronisation before shifting
- F16H2061/0407—Synchronisation before shifting by control of clutch in parallel torque path
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H2061/0474—Smoothing ratio shift by smoothing engagement or release of positive clutches; Methods or means for shock free engagement of dog clutches
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/06—Smoothing ratio shift by controlling rate of change of fluid pressure
- F16H61/061—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means
- F16H2061/062—Smoothing ratio shift by controlling rate of change of fluid pressure using electric control means for controlling filling of clutches or brake servos, e.g. fill time, fill level or pressure during filling
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/84—Data processing systems or methods, management, administration
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Control Of Transmission Device (AREA)
Abstract
The invention belongs to the technical field of automobiles, and particularly relates to a method and a device for optimizing DCT (discrete cosine transformation) gear shifting impact at low temperature. The method comprises the following steps: judging the low-temperature gear shifting working condition; judging gear shifting impact; and (6) optimizing gear shifting. The low-temperature gear shifting condition judgment comprises two parts of gear shifting judgment and low-temperature condition judgment. The shift optimization includes two parts, clutch torque transmission optimization and clutch combination control optimization. Through studying clutch combination pressure, clutch cooling control mode, clutch drag torque, engine speed, clutch disc coefficient of friction, analysis shift impact source and optimization method, effectively reduce the impact of shifting, promote the quality of shifting, solved shift control and produced the problem of pause and contusion, impact etc. and the problem of bringing adverse effect for the driving impression.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a method and a device for optimizing DCT (discrete cosine transformation) gear shifting impact at a low temperature.
Background
Due to the continuous improvement of the research and development level of automobiles, the difference of the power and the oil consumption of the whole automobile is reduced year by year, and the driving performance and the comfort are gradually the main aspects of the competition of the automobile industry. In order to improve the competitiveness of the drivability and the comfort of the whole vehicle, the drivability of the vehicle is evaluated in a development stage, and a project target is formulated and achieved. The gear shift is a common working condition in driving, and is easy to sense, so that the gear shift is very important in the evaluation of the drivability. Particularly in a low-temperature environment, due to the influence of characteristic changes of transmission hardware at a low temperature, gear shifting control is easy to have problems such as jerk and impact, and bad influence is brought to driving feeling. Therefore, the improvement of the shift quality at low temperature is very important.
Disclosure of Invention
The invention provides a method and a device for optimizing DCT (discrete cosine transformation) gear shifting impact at low temperature, which effectively reduce gear shifting impact, improve gear shifting quality, solve the problems of pause and impact and the like generated in gear shifting control and bring adverse effects to driving feeling by researching clutch combination pressure, a clutch cooling control mode, clutch dragging torque, engine speed and a clutch plate friction coefficient and analyzing a gear shifting impact source and an optimization method.
The embodiments of the invention are described below with reference to the accompanying drawings:
the embodiment of the invention provides an optimization method of DCT shifting impact at a low temperature, which comprises the following steps:
judging the low-temperature gear shifting working condition;
judging gear shifting impact;
and (5) gear shifting optimization.
Further, the low temperature shift condition determination includes two parts of a shift determination and a low temperature condition determination.
Further, the gear shifting judgment is to judge whether the vehicle is in a gear shifting working condition or not through a gear shifting controller gear signal, a vehicle speed signal and an engine rotating speed signal.
Further, the low temperature condition determination is to determine whether the engine is in a low temperature environment by comprehensively determining the transmission oil temperature and the engine water temperature.
Further, the specific method for determining the shift shock is as follows:
judging whether the vehicle has a bump and an abnormal sound or not and whether the vehicle rises or not during starting according to signals collected by the sensor, and judging that gear shifting impact exists if the vehicle has the bump and the abnormal sound or the vehicle rises or not during starting;
the method comprises the steps of collecting the rotating speed of an engine, the torque of the engine, the control target pressure of a clutch and the control actual pressure of the clutch, analyzing whether the phenomenon that the rotating speed is floated or pulled down exists during gear switching, whether the torque fluctuates or not and the torque transfer is unstable, and judging that the clutch is combined to generate impact if the phenomenon that the rotating speed is floated or pulled down exists, the torque fluctuates and the torque transfer is unstable.
Further, the gear shifting optimization comprises two parts of clutch torque transmission optimization and clutch combination control optimization.
Further, the specific method for optimizing the torque transmission of the clutch is as follows:
when the phenomena of low engine speed and torque reduction exist during gear switching of the vehicle, the analysis shows that the viscosity of the transmission oil is high at low temperature, the drag torque is increased, and the overall resistance of the whole vehicle at low temperature is increased; through improving the idling crawling rotation speed of the engine and the torque increasing request, the torque reserve at low temperature is improved, the idling torque control capability is improved, and the impact caused by violent torque change is prevented;
further, the specific method for optimizing the clutch combination control is as follows:
when the rotating speed of an engine floats high during the gear switching of the vehicle, the oil filling resistance of the transmission is increased under low temperature, the deviation between the control target pressure and the actual pressure of the clutch is too large, and the torque cannot be normally and efficiently transmitted, so that the rotating speed of the engine floats high; by reducing the flow, the back pressure of the clutch is reduced, the pre-pressing force in the early stage of the gear shifting starting process is adjusted, and the vehicle is prevented from rising or even abnormal sound caused by the high rotating speed.
The embodiment also provides an optimizing device for DTC shifting impact at low temperature, which comprises:
the low-temperature gear shifting judging module is used for judging whether the gear shifting is in a low-temperature gear shifting working condition;
the gear shifting impact judging module is used for judging whether gear shifting impact exists or not;
and the gear shifting impact optimization module is used for optimizing gear shifting impact.
The invention has the beneficial effects that:
according to the invention, by researching information such as clutch combination pressure, clutch cooling control mode, clutch dragging torque, engine speed, friction coefficient of a clutch plate and the like, a gear shifting impact source and an optimization method are analyzed, gear shifting impact is effectively reduced, and gear shifting quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of a method for optimizing DCT shift shock at low temperatures according to the present invention;
FIG. 2 is a detailed analysis flowchart of a method for optimizing DCT shift shock at low temperatures according to the present invention;
fig. 3 is a schematic structural diagram of a DCT shift shock device at low temperature according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.
Example one
Referring to fig. 1 and 2, a method for optimizing DCT shift shock at low temperature includes the steps of:
step one, judging a low-temperature gear shifting working condition;
the low-temperature gear shifting condition judgment comprises two parts of gear shifting judgment and low-temperature condition judgment.
And the gear shifting judgment is to judge whether the vehicle is in a gear shifting working condition or not through a gear signal of a gear shifting controller, a vehicle speed signal and an engine rotating speed signal.
The low-temperature condition judgment is to comprehensively judge whether the engine is in a low-temperature environment or not through the oil temperature of the transmission and the water temperature of the engine.
Step two, gear shifting impact judgment;
judging whether the vehicle has bump and abnormal sound or not and whether the vehicle is towering or not during starting or not through signals acquired by the sensor, and judging that gear shifting impact exists if the vehicle has bump and abnormal sound or the vehicle is towering during starting;
the method comprises the steps of collecting the rotating speed of an engine, the torque of the engine, the control target pressure of a clutch and the control actual pressure of the clutch, analyzing whether the phenomenon that the rotating speed is floated or pulled down exists during gear switching, whether the torque fluctuates or not and the torque transmission is unstable, and judging that the impact occurs when the clutch is combined if the phenomenon that the rotating speed is floated or pulled down exists, the torque fluctuates and the torque transmission is unstable.
And step three, gear shifting optimization.
The gear shifting optimization comprises two parts of clutch torque transmission optimization and clutch combination control optimization.
The specific method of clutch torque transfer optimization is as follows:
when the phenomena of low engine speed and torque reduction exist during the gear switching of the vehicle, the analysis shows that the viscosity of the transmission oil is high at low temperature, the drag torque is increased, and the overall resistance of the whole vehicle is increased at low temperature; through improving the idling crawling rotation speed of the engine and the torque increasing request, the torque reserve at low temperature is improved, the idling torque control capability is improved, and the impact caused by violent torque change is prevented;
the concrete method for optimizing the clutch combination control is as follows:
when the rotating speed of the engine floats high during the gear switching of the vehicle, the phenomenon that the rotating speed of the engine floats high is analyzed to be that the oil filling resistance of the transmission becomes large at low temperature, the deviation between the control target pressure and the actual pressure of the clutch is too large, and the torque cannot be normally and efficiently transmitted, so that the rotating speed of the engine floats high; by reducing the flow, the back pressure of the clutch is reduced, the pre-pressing force in the early stage of the gear shifting starting process is adjusted, and vehicle rising and even abnormal sound caused by high rotating speed are prevented.
Example two
The embodiment of the invention provides a DTC (digital control transmission) gear shifting impact optimizing device at low temperature, which comprises:
the low-temperature gear shifting judging module is used for judging whether the gear shifting is in a low-temperature gear shifting working condition;
the gear shifting impact judging module is used for judging whether gear shifting impact exists or not;
and the gear shifting impact optimization module is used for optimizing gear shifting impact.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications set forth in the specification and the examples. It can be applied to all kinds of fields suitable for the present invention. Additional modifications will readily occur to those skilled in the art. It is therefore intended that the invention not be limited to the exact details and illustrations described and illustrated herein, but fall within the scope of the appended claims and equivalents thereof.
Claims (9)
1. A method for optimizing DCT shifting shock at low temperature is characterized by comprising the following steps:
judging the low-temperature gear shifting working condition;
judging gear shifting impact;
and (6) optimizing gear shifting.
2. The method for optimizing the shift shock of the DCT at the low temperature according to claim 1, wherein the low temperature shift condition determination comprises two parts of a shift determination and a low temperature condition determination.
3. The method for optimizing the DCT shift shock at the low temperature of claim 2, wherein the shift determination is to determine whether the vehicle is in a shift condition by a shift controller gear signal, a vehicle speed signal, and an engine speed signal.
4. The method for optimizing the DCT shift shock at the low temperature according to claim 2, wherein the low temperature condition determination is to determine whether the low temperature condition is met by combining transmission oil temperature and engine water temperature.
5. The method for optimizing the DCT shift shock at the low temperature according to claim 1, wherein the specific method for determining the shift shock is as follows:
judging whether the vehicle has a bump and an abnormal sound or not and whether the vehicle rises or not during starting according to signals collected by the sensor, and judging that gear shifting impact exists if the vehicle has the bump and the abnormal sound or the vehicle rises or not during starting;
the method comprises the steps of collecting the rotating speed of an engine, the torque of the engine, the control target pressure of a clutch and the control actual pressure of the clutch, analyzing whether the phenomenon that the rotating speed is floated or pulled down exists during gear switching, whether the torque fluctuates or not and the torque transmission is unstable, and judging that the impact occurs when the clutch is combined if the phenomenon that the rotating speed is floated or pulled down exists, the torque fluctuates and the torque transmission is unstable.
6. The method of optimizing a DCT shift shock at low temperatures according to claim 1, wherein said shift optimization comprises two parts of clutch torque transfer optimization and clutch engagement control optimization.
7. The method for optimizing a DCT shift shock at low temperatures according to claim 6, wherein said clutch torque transfer optimization is as follows:
when the phenomena of low engine speed and torque reduction exist during gear switching of the vehicle, the analysis shows that the viscosity of the transmission oil is high at low temperature, the drag torque is increased, and the overall resistance of the whole vehicle at low temperature is increased; through improving the idling crawling rotating speed of the engine and the torque increasing request, the torque reserve at low temperature is improved, the idling torque control capacity is improved, and the impact caused by violent torque change is prevented.
8. The method for optimizing the DCT shift shock at the low temperature according to claim 6, wherein the specific method for optimizing the clutch engagement control is as follows:
when the rotating speed of the engine floats high during the gear switching of the vehicle, the phenomenon that the rotating speed of the engine floats high is analyzed to be that the oil filling resistance of the transmission becomes large at low temperature, the deviation between the control target pressure and the actual pressure of the clutch is too large, and the torque cannot be normally and efficiently transmitted, so that the rotating speed of the engine floats high; by reducing the flow, the back pressure of the clutch is reduced, the pre-pressing force in the early stage of the gear shifting starting process is adjusted, and the vehicle is prevented from rising or even abnormal sound caused by the high rotating speed.
9. An apparatus for optimizing DCT shift shock at low temperatures, comprising:
the low-temperature gear shifting judging module is used for judging whether the gear shifting is in a low-temperature gear shifting working condition or not;
the gear shifting impact judging module is used for judging whether gear shifting impact exists or not;
and the gear shifting impact optimization module is used for optimizing gear shifting impact.
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| CN202210432245.6A CN114922971B (en) | 2022-04-22 | 2022-04-22 | Method and device for optimizing DCT gear shifting impact at low temperature |
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Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10308698A1 (en) * | 2002-03-07 | 2003-09-25 | Luk Lamellen & Kupplungsbau | Starting strategy for dual-clutch gearbox for automobile has drive switched from starting clutch to second clutch upon detection of threshold clutch temperature |
| DE10308713A1 (en) * | 2002-03-07 | 2003-10-16 | Luk Lamellen & Kupplungsbau | Gear changing method for dual-clutch gear shift transmission in automobile using control of engine torque |
| CN101317020A (en) * | 2005-11-29 | 2008-12-03 | 卢克摩擦片和离合器两合公司 | Clutch unit |
| US20100113217A1 (en) * | 2008-11-03 | 2010-05-06 | Zf Friedrichshafen Ag | Synchronous state determination method for automatic dual clutch transmission |
| KR20110109022A (en) * | 2010-03-30 | 2011-10-06 | 현대자동차주식회사 | Apparatus for shock controlling of dual clutch transmission in vehicle and method thereof |
| CN104315138A (en) * | 2014-08-27 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Control method for shifting actuator of double-clutch automatic transmission |
| CN105523021A (en) * | 2014-10-17 | 2016-04-27 | 丰田自动车株式会社 | Shock detection system and shock detection method with vehicle at rest |
| US20160123411A1 (en) * | 2014-11-05 | 2016-05-05 | Hyundai Motor Company | Method of adjusting clutch characteristics of dct vehicle |
| CN105570448A (en) * | 2016-01-15 | 2016-05-11 | 上海汽车变速器有限公司 | Low-temperature gear shifting optimized control method of wet type double-clutch transmission |
| CN106931157A (en) * | 2017-03-13 | 2017-07-07 | 合肥工业大学 | A kind of double-clutch speed changer shift control method for avoiding dual-clutch gear-shifting power cycle |
| CN107575570A (en) * | 2017-09-06 | 2018-01-12 | 中国第汽车股份有限公司 | A kind of double-clutch automatic gearbox is creeped vibration control method |
| CN110886839A (en) * | 2019-12-11 | 2020-03-17 | 山推工程机械股份有限公司 | Bulldozer gear shifting control method and device and computer storage medium |
| CN111306291A (en) * | 2020-04-07 | 2020-06-19 | 株洲齿轮有限责任公司 | Method for controlling starting process of clutch transmission |
| CN111322388A (en) * | 2018-12-14 | 2020-06-23 | 比亚迪股份有限公司 | Automobile control method and control device |
| CN112820318A (en) * | 2020-12-31 | 2021-05-18 | 西安合谱声学科技有限公司 | Impact sound model establishment and impact sound detection method and system based on GMM-UBM |
| CN112963526A (en) * | 2021-03-26 | 2021-06-15 | 中国第一汽车股份有限公司 | Low-temperature gear shifting pre-control method for transmission system, transmission system and vehicle |
| CN113272581A (en) * | 2019-03-04 | 2021-08-17 | 宝马股份公司 | Method for carrying out a shifting operation in a sequential transmission |
| CN113389891A (en) * | 2020-03-12 | 2021-09-14 | 广州汽车集团股份有限公司 | Low-temperature starting control method and device of clutch transmission and related equipment |
-
2022
- 2022-04-22 CN CN202210432245.6A patent/CN114922971B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10308698A1 (en) * | 2002-03-07 | 2003-09-25 | Luk Lamellen & Kupplungsbau | Starting strategy for dual-clutch gearbox for automobile has drive switched from starting clutch to second clutch upon detection of threshold clutch temperature |
| DE10308713A1 (en) * | 2002-03-07 | 2003-10-16 | Luk Lamellen & Kupplungsbau | Gear changing method for dual-clutch gear shift transmission in automobile using control of engine torque |
| CN101317020A (en) * | 2005-11-29 | 2008-12-03 | 卢克摩擦片和离合器两合公司 | Clutch unit |
| US20100113217A1 (en) * | 2008-11-03 | 2010-05-06 | Zf Friedrichshafen Ag | Synchronous state determination method for automatic dual clutch transmission |
| KR20110109022A (en) * | 2010-03-30 | 2011-10-06 | 현대자동차주식회사 | Apparatus for shock controlling of dual clutch transmission in vehicle and method thereof |
| CN104315138A (en) * | 2014-08-27 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Control method for shifting actuator of double-clutch automatic transmission |
| CN105523021A (en) * | 2014-10-17 | 2016-04-27 | 丰田自动车株式会社 | Shock detection system and shock detection method with vehicle at rest |
| US20160123411A1 (en) * | 2014-11-05 | 2016-05-05 | Hyundai Motor Company | Method of adjusting clutch characteristics of dct vehicle |
| CN105570448A (en) * | 2016-01-15 | 2016-05-11 | 上海汽车变速器有限公司 | Low-temperature gear shifting optimized control method of wet type double-clutch transmission |
| CN106931157A (en) * | 2017-03-13 | 2017-07-07 | 合肥工业大学 | A kind of double-clutch speed changer shift control method for avoiding dual-clutch gear-shifting power cycle |
| CN107575570A (en) * | 2017-09-06 | 2018-01-12 | 中国第汽车股份有限公司 | A kind of double-clutch automatic gearbox is creeped vibration control method |
| CN111322388A (en) * | 2018-12-14 | 2020-06-23 | 比亚迪股份有限公司 | Automobile control method and control device |
| CN113272581A (en) * | 2019-03-04 | 2021-08-17 | 宝马股份公司 | Method for carrying out a shifting operation in a sequential transmission |
| CN110886839A (en) * | 2019-12-11 | 2020-03-17 | 山推工程机械股份有限公司 | Bulldozer gear shifting control method and device and computer storage medium |
| CN113389891A (en) * | 2020-03-12 | 2021-09-14 | 广州汽车集团股份有限公司 | Low-temperature starting control method and device of clutch transmission and related equipment |
| CN111306291A (en) * | 2020-04-07 | 2020-06-19 | 株洲齿轮有限责任公司 | Method for controlling starting process of clutch transmission |
| CN112820318A (en) * | 2020-12-31 | 2021-05-18 | 西安合谱声学科技有限公司 | Impact sound model establishment and impact sound detection method and system based on GMM-UBM |
| CN112963526A (en) * | 2021-03-26 | 2021-06-15 | 中国第一汽车股份有限公司 | Low-temperature gear shifting pre-control method for transmission system, transmission system and vehicle |
Non-Patent Citations (4)
| Title |
|---|
| 刘振军;董小洪;秦大同;刘永刚;: "双离合器自动变速换挡品质分析与控制", 重庆大学学报, no. 05 * |
| 孙冬野;王聪;: "发动机负扭矩工况下的DCT传动系统换挡控制策略", 中国机械工程, no. 19 * |
| 王兴焕;杨克军;: "湿式DCT起步控制的分析和研究", 汽车工艺师, no. 05 * |
| 石庆兰等: "双离合器式自动变速器爬行控制策略", 拖拉机与农用运输车, no. 02, pages 19 - 21 * |
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