CN115163819A - Double-clutch gear shifting noise reduction method, automobile and computer readable storage medium - Google Patents
Double-clutch gear shifting noise reduction method, automobile and computer readable storage medium Download PDFInfo
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- CN115163819A CN115163819A CN202210735472.6A CN202210735472A CN115163819A CN 115163819 A CN115163819 A CN 115163819A CN 202210735472 A CN202210735472 A CN 202210735472A CN 115163819 A CN115163819 A CN 115163819A
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- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000009467 reduction Effects 0.000 title claims abstract description 22
- 238000003860 storage Methods 0.000 title claims abstract description 8
- 230000002441 reversible effect Effects 0.000 claims abstract description 46
- 238000005461 lubrication Methods 0.000 claims abstract description 7
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000009977 dual effect Effects 0.000 claims description 14
- 238000004590 computer program Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 17
- 239000010687 lubricating oil Substances 0.000 description 7
- 239000003638 chemical reducing agent Substances 0.000 description 6
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/04—Smoothing ratio shift
- F16H61/0437—Smoothing ratio shift by using electrical signals
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Structure Of Transmissions (AREA)
Abstract
The invention belongs to the technical field of automobile control, and discloses a double-clutch gear shifting noise reduction method, an automobile and a computer readable storage medium. The reverse gear and the starting gear are both connected to the first rotating shaft, and the double-clutch gear shifting noise reduction method comprises the following steps: after the gear shifting handle is switched from the position indicating the reverse gear to the position indicating the starting gear, the first clutch is enabled to separate the first rotating shaft and the power output shaft, and the first rotating shaft is separated to a preset position suitable for releasing a first torque pulled by the power output shaft; closing a lubrication oil passage for cooling the first clutch to release the second torque generated by the lubrication oil passage; when the pressure of the first clutch is smaller than a pressure threshold value and the oil unloading time is longer than a first delay time, the gear shifting fork takes off the reverse gear and is engaged into a starting gear; and when the oil discharge time is longer than the second delay time, the shifting fork is used for releasing the reverse gear. The invention can reduce the noise generated when the automobile is switched from the reverse gear to the starting gear, thereby improving the use feeling of drivers and passengers.
Description
Technical Field
The invention relates to the technical field of automobile control, in particular to a double-clutch gear shifting noise reduction method, an automobile and a computer readable storage medium.
Background
With the development of automobile technology, automatic transmissions are increasingly widely used. Among many types of automatic transmissions, a transmission having dual clutches is favored by many manufacturers and market users due to its advantages of fast gear shifting without power interruption, low fuel consumption, low manufacturing cost, etc.
Based on the basic principle of a transmission system, the conditions of structure, arrangement form, space, patents and the like are comprehensively considered, when a first gear and a reverse gear for starting the automobile in the current forward gear are arranged on the same shaft, the structure is compact, the layout is reasonable, but the transmission system of the transmission is in a reverse transmission state before the automobile is switched from the reverse gear to the forward gear, and when the automobile is directly switched from the reverse gear to the starting gear, the transmission system of the transmission can be rapidly switched from the engagement of the reverse gear to the engagement of the positive gear, so that great noise is generated between an output gear and a main speed reducer, and the use feeling of a driver is seriously influenced.
Therefore, there is a need to solve the above problems.
Disclosure of Invention
The invention aims to provide a double-clutch gear shifting noise reduction method, an automobile and a computer readable storage medium, which are used for solving the problem that when the automobile is shifted from a reverse gear to a starting gear, great noise is generated between an output gear and a main speed reducer to influence the use feeling of a driver.
To achieve the purpose, the invention provides a double-clutch gear-shifting noise reduction method, which is used for a starting gear for starting an automobile when the automobile is switched from a reverse gear to a forward gear, wherein the reverse gear and the starting gear are both connected to a first rotating shaft, and the double-clutch gear-shifting noise reduction method comprises the following steps:
after the gear shifting handle is switched from the position indicating the reverse gear to the position indicating the starting gear, enabling a first clutch to separate the first rotating shaft and a power output shaft of an engine, and separating the first rotating shaft to a preset position, wherein the preset position is selected to be suitable for the first clutch to release first torque pulled by the power output shaft;
discharging oil by closing a lubrication oil passage for cooling the first clutch so that the first clutch releases the second torque generated by the lubrication oil passage;
when the pressure of the first clutch is smaller than a pressure threshold value and the oil unloading time is longer than a first delay time, the gear shifting fork takes off the reverse gear and is engaged into the starting gear;
and when the pressure of the first clutch is always greater than or equal to the pressure threshold value, keeping the gear shifting fork still, and when the oil unloading time is greater than a second delay time, taking off the reverse gear by the gear shifting fork and engaging the starting gear.
Preferably, the first clutch is a hydraulic clutch, and the pressure threshold is obtained by looking up a table according to the oil temperature of the transmission.
Preferably, when the first clutch is in the preset disengagement state, the first delay time is obtained according to a table look-up of a transmission oil temperature.
Preferably, when the first clutch is in the preset disengagement state, the second delay time is obtained according to a table look-up of the oil temperature of the transmission, and the second delay time is greater than the first delay time.
Preferably, the starting gear is a first gear, and the first gear is connected to the first rotating shaft.
The present invention also provides an automobile comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the dual clutch shift noise reduction method as described above.
The present invention also provides a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the dual clutch shift noise reduction method as described above.
The invention has the beneficial effects that: according to the invention, the first clutch is separated to the preset position, so that the first torque dragged by the power output shaft and the second torque generated by the lubricating oil circuit are gradually released, thus the noise generated when the automobile is switched from the reverse gear to the starting gear is reduced, and the use feeling of a driver is improved.
Drawings
FIG. 1 is a schematic diagram of a dual clutch transmission for a vehicle provided in accordance with an embodiment of the present invention;
FIG. 2 is a flow chart of a dual clutch shift noise reduction method provided by an embodiment of the invention.
In the figure:
1. a power input shaft;
21. a first clutch; 22. a second clutch;
31. a first drive gear; 32. a second transmission gear; 33. a third transmission gear; 34. a fourth transmission gear; 35. a fifth transmission gear;
41. a first gear; 42. a second gear; 43. a third gear; 44. a fourth gear; 45. a fifth gear; 46. a sixth gear; 47. a seventh gear;
5. reversing;
61. a first shift fork; 62. a second fork; 63. a third shift fork; 64. a fourth shift fork;
71. a first output gear; 72. a second output gear;
8. and a main speed reducer.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used based on the orientations or positional relationships shown in the drawings for convenience of description and simplicity of operation, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
The invention provides an automobile which comprises a double-clutch gearbox, please refer to fig. 1, the double-clutch gearbox comprises a power input shaft 1 connected with a power output shaft of an engine, the power input shaft 1 is connected with a first transmission gear 31, a second transmission gear 32, a third transmission gear 33, a fourth transmission gear 34 and a fifth transmission gear 35, the number of teeth of the first transmission gear is increased from small to large, the first clutch 21 and the second clutch 22 are both hydraulic clutches, oil passages of the first clutch 21 and the second clutch 22 are communicated with a lubricating oil passage of the transmission, the first clutch 21 can enable a first rotating shaft to be connected with or separated from the power output shaft, and the second clutch 22 can enable a second rotating shaft to be connected with or separated from the power output shaft.
The forward gears include a first gear 41, a second gear 42, a third gear 43, a fourth gear 44, a fifth gear 45, a sixth gear 46 and a seventh gear 47 with a torque ratio from large to small, wherein the first gear 41, the third gear 43, the fifth gear 45 and the seventh gear 47 can be rotatably connected to the first rotating shaft, the second gear 42, the fourth gear 44 and the sixth gear 46 can be rotatably connected to the second rotating shaft, and the reverse gear 5 can be rotatably connected to the first rotating shaft.
The first gear 41 and the reverse gear 5 are connected with the first transmission gear 31 in a transmission manner, the second gear 42 is connected with the second transmission gear 32 in a transmission manner, the third gear 43 is connected with the third transmission gear 33 in a transmission manner, the fourth gear 44 and the sixth gear 46 are connected with the fourth transmission gear 34 in a transmission manner, and the fifth gear 45 and the seventh gear 47 are connected with the fifth transmission gear 35 in a transmission manner.
The shifting fork comprises a first shifting fork 61, a second shifting fork 62, a third shifting fork 63 and a fourth shifting fork 64, the first shifting fork 61 can drive a first synchronizer to respectively enable a first gear 41 and a fifth gear 45 to synchronously rotate and be connected to a first rotating shaft, the second shifting fork 62 can drive a second synchronizer to respectively enable a second gear 42 and a fourth gear 44 to synchronously rotate and be connected to a second rotating shaft, the third shifting fork 63 can drive the third synchronizer to respectively enable a reverse gear 5 to synchronously rotate and be connected to the first rotating shaft and a sixth gear 46 to synchronously rotate and be connected to the second rotating shaft, and the fourth shifting fork 64 can drive the fourth synchronizer to respectively enable a third gear 43 and a seventh gear 47 to synchronously rotate and be connected to the first rotating shaft. The first rotating shaft and the second rotating shaft are respectively connected with the first output gear 71 and the second output gear 72 in a synchronous rotating mode, and the first output gear 71 and the second output gear 72 are both in transmission connection with the main speed reducer 8 located on the output shaft, so that the output shaft can transmit torque on the first rotating shaft and the second rotating shaft.
With the above structure, when the vehicle is in the reverse gear 5, the power train of the transmission is in a reverse drive state, and the first clutch 21 has a first torque drawn by the power output shaft and a second torque generated by the lubrication oil path. In order to facilitate starting, the prior art generally uses the first gear 41 as a starting gear, if the vehicle is directly shifted from the reverse gear 5 to the first gear 41, the second output gear 72 will rotate in reverse under the action of the first torque and the second torque, and because the second output gear 72 is meshed with the main reducer 8 through the reverse gear surface, the second output gear 72 rotating in reverse under the action of the first torque and the second torque will be rapidly switched from the meshing of the reverse gear surface to the meshing of the spur gear surface, so when the vehicle is directly shifted from the reverse gear 5 to the first gear 41, the second output gear 72 and the main reducer 8 will collide with each other, thereby generating great noise and seriously affecting the use feeling of the driver.
In order to solve the above problems, the present embodiment provides an automobile including one or more processors and a memory for storing one or more programs, when the one or more programs are executed by the one or more processors, the one or more processors implement a dual clutch shift noise reduction method, so as to solve the above problems.
Referring to fig. 2, the dual clutch shift noise reduction method is used for a starting gear for starting an automobile when the automobile is switched from a reverse gear 5 to a forward gear, wherein the reverse gear 5 and the starting gear are both connected to a first rotating shaft, and the dual clutch shift noise reduction method comprises the following steps:
after the gear shifting handle is switched from the position indicating the reverse gear 5 to the position indicating the starting gear, the first clutch 21 is enabled to separate the first rotating shaft and the power output shaft of the engine, and the first rotating shaft is separated to a preset position, the preset position is selected to be suitable for the first clutch 21 to release the first torque pulled by the power output shaft, so that the first clutch 21 can release the negative torque pulled by the power output shaft and reserved, the noise of the automobile when the reverse gear 5 is switched to the starting gear is reduced, and the use feeling of a driver is improved;
the first clutch 21 releases the second torque generated by the lubricating oil path by closing the lubricating oil path for cooling the first clutch 21, and meanwhile, the lubricating oil path is closed, so that the output torque of a part of the engine is transmitted to the first clutch 21 when the first clutch 21 is lubricated and cooled by the lubricating oil path, the negative torque required to be released by the first clutch 21 is reduced, the noise generated when the automobile is switched from the reverse gear 5 to the starting gear can be further reduced, and the use feeling of a driver is improved.
When the pressure of the first clutch 21 is smaller than the pressure threshold value and the oil discharge time is longer than the first delay time, the gear shifting fork takes off the reverse gear 5 and is engaged into a starting gear;
when the pressure of the first clutch 21 is always greater than or equal to the pressure threshold value, the gear shifting fork is kept still, and when the oil discharge time is greater than the second delay time, the gear shifting fork is used for taking off the reverse gear 5 and engaging the starting gear.
It will be appreciated that when the first clutch 21 releases the first and second torques completely, the transmission line of the transmission is in a no-load state, and when the first clutch 21 releases the first and second torques to a residual negative torque that does not cause the second output gear 72 and the final drive 8 to collide, i.e. the first clutch 21 pressure is greater than zero but less than the pressure threshold, the transmission line of the transmission is in a low-load state.
In the embodiment, the starting gear is the first gear 41, and the first gear 41 is connected to the first rotating shaft, so that the starting of the automobile can be faster and smoother, specifically, the third shift fork 63 is disengaged from the reverse gear 5, and the first shift fork 61 is engaged with the first gear 41.
In this embodiment, after the first rotating shaft is kept at the preset position for the first delay time, the gear shifting fork is disengaged from the reverse gear 5 and the starting gear is engaged, so that the time for releasing the negative torque by the first clutch 21 can be prolonged, the negative torque is gradually released by the first clutch 21, the noise generated when the automobile is switched from the reverse gear 5 to the starting gear is reduced, and the use feeling of a driver is improved.
If the pressure of the first clutch 21 is always greater than or equal to the pressure threshold, the first rotating shaft is kept at the preset position for a second delay time, and after the second delay time, the reverse gear 5 is disengaged by the gear shifting fork and the starting gear is engaged, namely when the first clutch 21 is not in a no-load state or a low-load state all the time, the reverse gear 5 is also disengaged by the gear shifting fork and the starting gear is engaged, so that the requirement of the whole vehicle is met.
Preferably, the pressure threshold is obtained from a table look-up of transmission oil temperature.
Correspondingly, the first delay time and the second delay time are also obtained according to the table look-up of the oil temperature of the transmission, and meanwhile, the second delay time is larger than the first delay time.
In the embodiment, the first clutch 21 is a hydraulic clutch, when the first rotating shaft is at the preset position, the oil discharge pressure is 0.5Bar-1Bar, and the oil temperature of the lubricating oil path is usually-40 ℃ to 120 ℃.
When the first torque required to be released by the first clutch 21 is too large, in order to further release the negative torque by the first clutch 21, after calibration data is carried out according to different working environments of the first clutch 21, when the first rotating shaft is kept at the preset position with the first delay time of 150 milliseconds, besides the oil can be fully discharged, the pressure of the first clutch 21 can be smaller than a pressure threshold value, so that when a transmission system of the gearbox is in a no-load state or a low-load state, a starting gear is engaged, noise generated when an automobile is switched from a reverse gear 5 to the starting gear is reduced, and the use feeling of a driver is improved.
The present embodiments also provide a computer readable storage medium having stored thereon a computer program which, when executed by a processor, implements the dual clutch shift noise reduction method as above.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (7)
1. A double-clutch gear-shifting noise reduction method is used for a starting gear for starting an automobile when the automobile is switched from a reverse gear (5) to a forward gear, wherein the reverse gear (5) and the starting gear are both connected to a first rotating shaft, and is characterized by comprising the following steps of:
after the gear shifting handle is switched from the position indicating the reverse gear (5) to the position indicating the starting gear, enabling a first clutch (21) to separate the first rotating shaft and a power output shaft of an engine, and separating the first rotating shaft to a preset position, wherein the preset position is selected to be suitable for the first clutch (21) to release a first torque pulled by the power output shaft;
discharging oil by closing a lubrication oil passage for cooling the first clutch (21) to cause the first clutch (21) to release the second torque generated by the lubrication oil passage;
when the pressure of the first clutch (21) is smaller than a pressure threshold value and the oil discharge time is longer than a first delay time, the reverse gear (5) is disengaged by a gear shifting fork and the starting gear is engaged;
when the pressure of the first clutch (21) is always larger than or equal to the pressure threshold value, the gear shifting fork is kept still, and when the oil unloading time is larger than a second delay time, the gear shifting fork is used for taking off the reverse gear (5) and is used for engaging in the starting gear.
2. The dual clutch shift noise reduction method of claim 1, wherein the pressure threshold is obtained from a table lookup of transmission oil temperatures.
3. The dual clutch shift noise reduction method according to claim 1, wherein the first delay time is obtained from a table look-up of transmission oil temperature.
4. The dual clutch shift noise reduction method according to claim 1, wherein the second delay time is obtained from a table look-up of transmission oil temperature, and the second delay time is greater than the first delay time.
5. Double clutch shift noise reduction method according to any of claims 1-4, characterized in that the starting gear is a first gear (41), which first gear (41) is connected to the first shaft.
6. An automobile, comprising:
one or more processors;
a memory for storing one or more programs;
when executed by the one or more processors, cause the one or more processors to implement the dual clutch shift noise reduction method of any of claims 1-4.
7. A computer-readable storage medium, on which a computer program is stored, which program, when being executed by a processor, is adapted to carry out a method for dual clutch shift noise reduction according to any one of claims 1 to 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210735472.6A CN115163819B (en) | 2022-06-27 | 2022-06-27 | Dual-clutch gear shifting noise reduction method, automobile and computer readable storage medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210735472.6A CN115163819B (en) | 2022-06-27 | 2022-06-27 | Dual-clutch gear shifting noise reduction method, automobile and computer readable storage medium |
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| Publication Number | Publication Date |
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| CN115163819A true CN115163819A (en) | 2022-10-11 |
| CN115163819B CN115163819B (en) | 2024-06-14 |
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512708A2 (en) * | 1991-05-09 | 1992-11-11 | Eaton Corporation | Compound power downshift method/system |
| JPH05149418A (en) * | 1991-11-25 | 1993-06-15 | Honda Motor Co Ltd | Control device of transmission |
| US20090145253A1 (en) * | 2007-12-05 | 2009-06-11 | Nissan Motor Co., Ltd. | Shifting control system |
| CN102563038A (en) * | 2011-12-31 | 2012-07-11 | 重庆长安汽车股份有限公司 | Neutral position control method for automatic transmission |
| CN103711891A (en) * | 2013-12-30 | 2014-04-09 | 长城汽车股份有限公司 | Dual-clutch transmission starting control method |
| CN104728423A (en) * | 2013-12-18 | 2015-06-24 | 现代自动车株式会社 | Shifing control method for vehicle with dual clutch transmission |
| CN105626846A (en) * | 2014-11-03 | 2016-06-01 | 比亚迪股份有限公司 | Downshifting method for transmission and transmission for automobile |
| CN105697668A (en) * | 2016-04-25 | 2016-06-22 | 吴海荣 | Seamless gear shifting automobile automatic transmission |
| CN106195260A (en) * | 2016-09-30 | 2016-12-07 | 安徽江淮汽车股份有限公司 | Wet-type dual-clutch transmission selector fork detection method |
| US20180031058A1 (en) * | 2016-07-28 | 2018-02-01 | Subaru Corporation | Shift control device |
| CN112324906A (en) * | 2020-11-09 | 2021-02-05 | 江苏悦达智能农业装备有限公司 | Vehicle transmission system and clutch switching control method thereof |
| CN114607765A (en) * | 2022-03-11 | 2022-06-10 | 中国第一汽车股份有限公司 | Intelligent gear pre-engaging method for double-clutch transmission and vehicle |
-
2022
- 2022-06-27 CN CN202210735472.6A patent/CN115163819B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0512708A2 (en) * | 1991-05-09 | 1992-11-11 | Eaton Corporation | Compound power downshift method/system |
| JPH05149418A (en) * | 1991-11-25 | 1993-06-15 | Honda Motor Co Ltd | Control device of transmission |
| US20090145253A1 (en) * | 2007-12-05 | 2009-06-11 | Nissan Motor Co., Ltd. | Shifting control system |
| CN102563038A (en) * | 2011-12-31 | 2012-07-11 | 重庆长安汽车股份有限公司 | Neutral position control method for automatic transmission |
| CN104728423A (en) * | 2013-12-18 | 2015-06-24 | 现代自动车株式会社 | Shifing control method for vehicle with dual clutch transmission |
| CN103711891A (en) * | 2013-12-30 | 2014-04-09 | 长城汽车股份有限公司 | Dual-clutch transmission starting control method |
| CN105626846A (en) * | 2014-11-03 | 2016-06-01 | 比亚迪股份有限公司 | Downshifting method for transmission and transmission for automobile |
| CN105697668A (en) * | 2016-04-25 | 2016-06-22 | 吴海荣 | Seamless gear shifting automobile automatic transmission |
| US20180031058A1 (en) * | 2016-07-28 | 2018-02-01 | Subaru Corporation | Shift control device |
| CN106195260A (en) * | 2016-09-30 | 2016-12-07 | 安徽江淮汽车股份有限公司 | Wet-type dual-clutch transmission selector fork detection method |
| CN112324906A (en) * | 2020-11-09 | 2021-02-05 | 江苏悦达智能农业装备有限公司 | Vehicle transmission system and clutch switching control method thereof |
| CN114607765A (en) * | 2022-03-11 | 2022-06-10 | 中国第一汽车股份有限公司 | Intelligent gear pre-engaging method for double-clutch transmission and vehicle |
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| CN115163819B (en) | 2024-06-14 |
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