CN115388166A - Dual-clutch transmission and shifting fork control method and system thereof - Google Patents
Dual-clutch transmission and shifting fork control method and system thereof Download PDFInfo
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- CN115388166A CN115388166A CN202110565170.4A CN202110565170A CN115388166A CN 115388166 A CN115388166 A CN 115388166A CN 202110565170 A CN202110565170 A CN 202110565170A CN 115388166 A CN115388166 A CN 115388166A
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- 239000012530 fluid Substances 0.000 claims description 2
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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
- F16H61/68—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 specially adapted for stepped gearings
- F16H61/684—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 specially adapted for stepped gearings without interruption of drive
- F16H61/688—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 specially adapted for stepped gearings without interruption of drive with two inputs, e.g. selection of one of two torque-flow paths by 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
- F16H61/26—Generation or transmission of movements for final actuating mechanisms
- F16H61/28—Generation or transmission of movements for final actuating mechanisms with at least one movement of the final actuating mechanism being caused by a non-mechanical force, e.g. power-assisted
- F16H61/30—Hydraulic or pneumatic motors or related fluid control means therefor
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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
- F16H61/38—Control of exclusively fluid gearing
- F16H61/40—Control of exclusively fluid gearing hydrostatic
- F16H61/4035—Control of circuit flow
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Abstract
The invention discloses a double-clutch transmission and a shifting fork control method and system thereof, wherein the method comprises the following steps: s1, acquiring running state information of a target shifting fork, and judging whether the target shifting fork is in a running state or not according to the running state information; if yes, the step S2 is carried out, and if not, whether the target shifting fork is in the running state or not is judged; s2, acquiring actual position information of a target shifting fork, calculating a difference value between the actual position information and preset middle position information, and judging whether an absolute value of the difference value exceeds a first threshold range; if yes, entering step S3; if not, the step S1 is carried out; and S3, adjusting the target shifting fork to move to a middle position according to the difference. Therefore, the risk of shifting fork abnormal movement caused by flow valve clamping stagnation can be reduced, and the working stability of the double-clutch transmission can be improved by adopting the method.
Description
Technical Field
The invention relates to the technical field of automobile transmission systems, in particular to a double-clutch transmission and a shifting fork control method and system thereof.
Background
A Dual Clutch Transmission (DCT) is an automatic Transmission, and has recently become more popular in home and abroad automobile host machine factories. Because DCT has the advantages of uninterrupted power in the gear shifting process, good gear shifting quality, high transmission efficiency and the like. The hybrid power automobile is not only widely applied to the traditional internal combustion engine automobile, but also applied to hybrid power automobiles with various structural types. The DCT generally adopts an electro-hydraulic control mode, controls the Pressure of the cylinder through an electromagnetic Valve, and then controls the movement of the shift fork or the clutch, the electro-hydraulic controlled electromagnetic Valve may be divided into a Pressure Valve (PPV) and a Flow Valve (QPV), the Pressure Valve controls the Pressure of the oil passage, the Flow Valve controls the Flow rate, and the direction of the shift fork to engage the gear may also be controlled. However, in the gear shifting process of the existing double-clutch transmission, when a shifting fork flow valve is blocked, multiple gears can be meshed, and a gearbox is damaged.
Researches show that when a flow valve is blocked in the use process of a double-clutch transmission (DCT for short), the position of a shifting fork is inconsistent with the expected position, and the DCT can be damaged. As shown in fig. 1, the odd-numbered gears (including 35 shift Cylinder and 71 shift Cylinder) share one pressure valve PPV1 with the odd-numbered clutch center release bearing (CSC), and the even-numbered gears share one pressure valve PPV2 with the even-numbered clutch (not shown in fig. 1). Taking the 71 shifting fork piston cylinder as an example, when the QPV1 is blocked at the 7 gear, if the PPV1 has pressure, the 71 shifting fork will move towards the 7 gear direction; when QPV1 is blocked at gear 1, if PPV1 has pressure, the 71 shift fork will move towards the direction of gear 1. At this time, if 3 rd or 5 th gear is also in place, it may cause the odd-shaft gear to engage multiple gears, thereby damaging the DCT.
The structure of the QPV valve is shown in FIG. 2, wherein, when the A-T ports are communicated, the QPV valve is in a full-open state; when the A-P port is communicated, the A-P port is in a cut-off state; the port B is a shunt port.
In the use process of the QPV valve, as shown in FIG. 3, the QPV valve has two dead zones of current point NullPt (null point) of 0 current point, and when 3 grades are hung, 71 shift fork flow valves are kept in NullPt, if 71 shift fork flow valves are blocked, nullPt can be deviated, and 71 shift forks will be subjected to abnormal motion in serious conditions, even multi-gear meshing can be caused, and the gearbox is damaged. The general method is that after the 71 shifting fork generates abnormal operation, the current of the 71 shifting fork flow valve is set to be 0, but the 71 shifting fork flow valve passes through a P-A area again, the risks of shifting fork abnormal operation and multi-gear meshing can be aggravated, and particularly, the slow response of the electromagnetic valve at low temperature can be more serious.
Therefore, the prior art dual clutch transmission has a problem of poor operation stability.
Disclosure of Invention
The invention aims to solve the problem that a double-clutch transmission in the prior art is poor in working stability.
In order to solve the above technical problem, an embodiment of the present invention provides a method for controlling a shift fork of a dual clutch transmission, including:
s1, acquiring running state information of a target shifting fork, and judging whether the target shifting fork is in a running state or not according to the running state information; if yes, the step S2 is carried out, and if not, whether the target shifting fork is in the running state or not is judged;
s2, acquiring actual position information of a target shifting fork, calculating a difference value between the actual position information and preset middle position information, and judging whether an absolute value of the difference value exceeds a first threshold range;
if yes, entering step S3; if not, the step S1 is carried out;
and S3, adjusting the target shifting fork to move to a middle position according to the difference.
By adopting the technical scheme, the method for controlling the shifting fork of the double-clutch transmission provided by the embodiment can adjust the target shifting fork to move to the middle position according to the difference value between the actual position information and the middle position information of the target shifting fork when the difference value is judged to exceed the first threshold range, so that the risk of shifting fork abnormal movement caused by blocking of the flow valve can be reduced, and the working stability of the double-clutch transmission can be improved.
Further, another embodiment of the present invention provides a method for controlling a shift fork of a dual clutch transmission, which includes, in step S3,
and determining target flow information of a flow valve of the target shifting fork according to the difference, and adjusting the flow of the flow valve according to the target flow information.
By adopting the technical scheme, the method for controlling the shifting fork of the double-clutch transmission can determine the target flow information of the flow valve of the target shifting fork according to the difference value between the actual position information and the preset middle position information, and regulate the flow of the flow valve according to the target flow information.
Further, another embodiment of the present invention provides a dual clutch transmission shift fork control method, which includes, in step S3,
and determining target speed information of a piston cylinder corresponding to the flow valve according to the difference value, and determining the target flow information according to the target speed information.
Further, another embodiment of the present invention provides a method for controlling a shift fork of a dual clutch transmission, which includes, in step S1,
and the running state information is obtained through a moving instruction of the target shifting fork.
Further, another embodiment of the present invention provides a method for controlling a dual clutch transmission shift fork, wherein in step S2, the first threshold range is 0-1mm.
Further, another embodiment of the present invention provides a dual clutch transmission shift fork control system, including:
the first detection module acquires the running state information of a target shifting fork based on a moving instruction of the target shifting fork;
the second detection module is used for acquiring actual position information of the target shifting fork;
and the control module is used for storing the middle position information, acquiring the running state information and the actual position information, calculating the difference value between the actual position information and the preset middle position information and generating difference value information, and controlling the running state of the target shifting fork according to the difference value information.
By adopting the technical scheme, the double-clutch transmission shifting fork control system provided by the embodiment can adjust the target shifting fork to move to the middle position according to the difference value of the first detection module and the second detection module and the control module, and can reduce the risk of shifting fork abnormal movement caused by the blocking of the flow valve and improve the working stability of the double-clutch transmission.
Further, another embodiment of the invention provides a dual clutch transmission fork control system, and the control module controls the flow rate of the liquid in the flow valve of the target fork according to the difference information.
Further, another embodiment of the invention provides a shift fork control system of a dual-clutch transmission, wherein the control module controls the operation state of a piston cylinder corresponding to the flow valve according to the difference information, and the flow of liquid in the flow valve is adjusted through the piston cylinder.
Further, another embodiment of the invention provides a dual clutch transmission shift fork control system, wherein the control module comprises a zero clearing submodule for clearing the actual position information when the vehicle is powered off.
Further, another embodiment of the invention provides a dual clutch transmission, which comprises the dual clutch transmission fork control system with the structure.
By adopting the technical scheme, the double-clutch transmission comprises the double-clutch transmission shift fork control system with the structure, and the double-clutch transmission shift fork control system with the structure can adjust the target shift fork to move to the middle position according to the difference value of the first detection module, the second detection module and the control module, so that the double-clutch transmission has the advantage of high working stability.
Additional features and corresponding advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a hydraulic schematic of a dual clutch transmission;
FIG. 2 is a schematic diagram of the QPV valve configuration;
FIG. 3 is a QPV valve flow-current graph;
fig. 4 is a flowchart of a method for controlling a shift fork of a dual clutch transmission according to embodiment 1 of the present invention;
fig. 5 is a schematic diagram of QPV flow adjustment of the dual clutch transmission shift fork according to embodiment 1 of the present invention;
fig. 6 is a QPV valve flow-current curve diagram to which the method for controlling a shift fork of a dual clutch transmission provided in embodiment 1 of the present invention is applied;
fig. 7 is a schematic diagram of a shift fork control system of a dual clutch transmission according to embodiment 2 of the present invention.
Description of the reference numerals:
10. a first detection module;
20. a second detection module;
30. a control module;
40. a piston cylinder;
50. a flow valve.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are included to provide a thorough understanding of the invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that the features of the invention be limited to that embodiment. On the contrary, the invention has been described in connection with the embodiments for the purpose of covering alternatives or modifications as may be extended based on the claims of the invention. In the following description, numerous specific details are included to provide a thorough understanding of the invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Example 1:
one embodiment of the present invention provides a method for controlling a fork of a dual clutch transmission, including the steps of:
s1, acquiring running state information of a target shifting fork, and judging whether the target shifting fork is in a running state or not according to the running state information; if yes, the process goes to step S2, and if not, whether the target shifting fork is in a running state or not is judged;
s2, acquiring actual position information of the target shifting fork, calculating a difference value between the actual position information and preset middle position information, and judging whether an absolute value of the difference value exceeds a first threshold range;
if yes, entering step S3; if not, the step S1 is carried out;
and S3, adjusting the target shifting fork to move to a middle position according to the difference value.
Specifically, according to the method for controlling the shift fork of the dual clutch transmission provided by the embodiment, when it is determined that the difference between the actual position information and the middle position information of the target shift fork exceeds the first threshold range, the target shift fork can be adjusted to move to the middle position according to the difference between the actual position information and the middle position information, the risk of shift fork abnormal movement caused by blocking of the flow valve can be reduced, and the working stability of the dual clutch transmission can be further improved.
It should be understood that, in the present embodiment, the neutral position refers to a desired position to be moved by the target fork under the control command.
Further, another embodiment of the present embodiment provides a dual clutch transmission shift fork control method, as shown in fig. 5, in step S3,
and determining target flow information of the flow valve of the target shifting fork according to the difference value, and adjusting the flow of the flow valve according to the target flow information.
Specifically, the method for controlling the shift fork of the dual clutch transmission according to the embodiment can determine the target flow information of the flow valve of the target shift fork according to the difference between the actual position information and the preset middle position information, and adjust the flow of the flow valve according to the target flow information, so that the accuracy of controlling the shift fork to move can be further improved.
Further, another embodiment of the present embodiment provides a method for controlling a shift fork of a dual clutch transmission, which includes, in step S3,
and determining target speed information of the piston cylinder corresponding to the flow valve according to the difference value, and determining target flow information according to the target speed information.
Further, another embodiment of the present embodiment provides a method for controlling a shift fork of a dual clutch transmission, which includes, in step S1,
the running state information is obtained through a moving instruction of the target shifting fork.
Further, another embodiment of the present invention provides a method for controlling a shift fork of a dual clutch transmission, wherein in step S2, the first threshold range is 0-1mm.
In the method for controlling the shift fork of the dual clutch transmission provided by the embodiment, as shown in fig. 1 to 5, 35 shift forks and 71 shift forks are taken as examples;
the first step is as follows: judging 35 whether the shifting fork is in the moving process;
if yes, recording 35 the position of the 71 shifting fork when the shifting fork starts to act as X0; if not, returning to the initial state;
the second step is that: judging 71 whether the actual position X2-X0 of the shifting fork is larger than a first threshold range;
if yes, executing the step S3; if not, entering a third step;
the third step: judging 35 whether the shifting fork is in the moving process;
if yes, circulating the second step; if not, returning to the initial state;
in step S3, continuously judging 35 whether the shifting fork is in the moving process;
if yes, circulating the step S3; if not, returning to the initial state.
According to the method for controlling the shifting fork of the dual-clutch transmission, the difference value is obtained through comparison of the actual position and the expected position of the shifting fork, when the difference value between the actual position information and the middle position information of the target shifting fork is judged to exceed the first threshold range, the target shifting fork can be adjusted to move to the middle position according to the difference value between the actual position information and the middle position information, the risk that the shifting fork is abnormally moved due to blocking of a flow valve can be reduced, and the working stability of the dual-clutch transmission can be improved.
By adopting the control method for the shifting fork of the dual-clutch transmission provided by the embodiment, shifting fork abnormal movement caused by QPV valve clamping stagnation can be detected in time, especially, the shifting fork abnormal movement can be stabilized in the middle position after the shifting fork abnormal movement occurs, and the multi-gear meshing risk is avoided; and under different temperature environments, the method can exert stable protection effect.
As shown in fig. 6, after the method is applied, the abnormal operation of the 71-fork in NullPt is obviously improved.
It should be understood that the method for controlling the shifting fork of the dual clutch transmission provided by the embodiment is not only suitable for the traditional internal combustion engine automobile, but also suitable for the hybrid electric automobile. Meanwhile, the automatic transmission is not only suitable for a dry-type double-clutch transmission and a wet-type double-clutch transmission, but also can be applied to an electric control mechanical automatic transmission. The specific use scene can be set according to actual design and use requirements, and the embodiment does not make specific requirements.
Example 2:
the present embodiment provides a shift fork control system for a dual clutch transmission, as shown in fig. 7, including: the device comprises a first detection module 10, a second detection module 20 and a control module 30.
Specifically, the first detection module 10 obtains the operating state information of the target shifting fork based on the movement instruction of the target shifting fork; the second detection module 20 is used for acquiring actual position information of the target shifting fork; the control module 30 is configured to store the middle position information, acquire the operation state information and the actual position information, calculate a difference between the actual position information and the preset middle position information, generate difference information, and control the operation state of the target shifting fork according to the difference information.
More specifically, according to the shift fork control system of the dual clutch transmission provided by the embodiment, through the arrangement of the first detection module 10, the second detection module 20 and the control module 30, the target shift fork can be adjusted to move to the middle position according to the difference value between the first detection module and the second detection module, so that the risk of shift fork abnormal movement caused by the blocking of the flow valve 50 can be reduced, and the working stability of the dual clutch transmission can be improved.
More specifically, in the present embodiment, the first detection module 10 and the second detection module 20 are both configured as sensors, and the control module 30 is configured as a controller, and the specific model thereof can be set according to actual design and use requirements, which is not specifically required in the present embodiment.
Further, another embodiment of the present embodiment provides a dual clutch transmission fork control system, wherein the control module 30 controls the flow rate of the fluid in the flow valve 50 of the target fork according to the difference information.
Further, another embodiment of the present embodiment provides a dual clutch transmission shift fork control system, the control module 30 controls the operation state of the piston cylinder 40 corresponding to the flow valve 50 according to the difference information, and the flow of the liquid in the flow valve 50 is adjusted through the piston cylinder 40.
Further, in another embodiment of the present invention, a control module 30 includes a zero clearing sub-module, which clears the actual position information when the vehicle is powered off.
Specifically, when the vehicle is powered off, the zero clearing submodule clears the count of the number of passive movement. When the vehicle is powered on again, the hydraulic system operates again to help oil in the oil way to flush the blocked position in the moving process, so that the number of times of passive movement is accumulated again, the buffering time of safe operation of a user is prolonged, and the situation that the preset threshold value is reached after few times of passive movement is generated is avoided.
It should be noted that, when the vehicle is powered off, the number of passive movement may not be cleared, so as to perform accumulated calculation for the stuck condition of the multi-way valve of the vehicle, and further provide a basis for vehicle maintenance.
In the concrete implementation, can save the passive removal record of predetermineeing the shift fork to when vehicle maintenance, improve troubleshooting efficiency.
It is understood that the more detailed the recording content is, the more the troubleshooting efficiency is improved. Passive movement recording may include one or more of: the serial number of the multi-way valve, the serial number of the preset shifting fork, the time of the passive movement of the preset shifting fork, the coupling gear of the preset shifting fork, the number of times of the passive movement of the preset shifting fork and the accumulated value of the number of times of the passive movement.
The serial number of the multi-way valve and the serial number of the preset shifting fork are used for identifying the corresponding multi-way valve and the corresponding shifting fork, and then the serial number of the clutch corresponding to the multi-way valve can be obtained according to the serial number of the multi-way valve. Specifically, the serial number of the multi-way valve and the serial number of the preset shift fork may be factory-set serial numbers or serial numbers to be added later.
Example 3:
the present embodiment provides a dual clutch transmission including the dual clutch transmission shift fork control system of embodiment 2.
Specifically, referring to fig. 7 in embodiment 2, since the dual clutch transmission in this embodiment includes the dual clutch transmission fork control system in embodiment 2, the dual clutch transmission fork control system with the above structure can adjust the target fork to move to the neutral position according to the difference between the first detection module 10, the second detection module 20 and the control module 30, and thus, the dual clutch transmission in this embodiment has the advantage of high operation stability.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more particular description of the invention than is possible with reference to the specific embodiments, and the specific embodiments of the invention are not to be considered as limited to those descriptions. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A method for controlling a shifting fork of a double-clutch transmission is characterized by comprising the following steps:
s1, acquiring running state information of a target shifting fork, and judging whether the target shifting fork is in a running state or not according to the running state information; if yes, the step S2 is carried out, and if not, whether the target shifting fork is in the running state or not is judged;
s2, acquiring actual position information of a target shifting fork, calculating a difference value between the actual position information and preset middle position information, and judging whether an absolute value of the difference value exceeds a first threshold range;
if yes, entering step S3; if not, the step S1 is carried out;
and S3, adjusting the target shifting fork to move to a middle position according to the difference.
2. The double clutch transmission shift fork control method according to claim 1, wherein, in step S3,
and determining target flow information of a flow valve of the target shifting fork according to the difference, and adjusting the flow of the flow valve according to the target flow information.
3. The twin clutch transmission shift fork control method as set forth in claim 2, wherein in step S3,
and determining target speed information of a piston cylinder corresponding to the flow valve according to the difference value, and determining the target flow information according to the target speed information.
4. The dual clutch transmission shift fork control method as set forth in any one of claims 1 to 3, wherein, in step S1,
and the running state information is obtained through a moving instruction of the target shifting fork.
5. The dual clutch transmission shift fork control method as set forth in claim 4, wherein the first threshold range is 0-1mm in step S2.
6. A dual clutch transmission shift fork control system, comprising:
the first detection module acquires the running state information of a target shifting fork based on a moving instruction of the target shifting fork;
the second detection module is used for acquiring actual position information of the target shifting fork;
and the control module is used for storing the middle position information, acquiring the running state information and the actual position information, calculating the difference value between the actual position information and the preset middle position information and generating difference value information, and controlling the running state of the target shifting fork according to the difference value information.
7. The dual clutch transmission shift fork control system of claim 6, wherein the control module controls a flow of fluid in a flow valve of the target shift fork based on the difference information.
8. The dual clutch transmission shift fork control system of claim 7, wherein the control module controls the operating state of a piston cylinder corresponding to the flow valve according to the difference information, and the flow rate of the liquid in the flow valve is adjusted through the piston cylinder.
9. A dual clutch transmission shift fork control system as set forth in any one of claims 6-8, wherein said control module includes a zero module for clearing said actual position information when the vehicle is powered off.
10. A dual clutch transmission comprising a dual clutch transmission shift fork control system as claimed in any one of claims 6 to 9.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115388166B (en) | 2024-07-05 |
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