Gear selection method and device, electronic equipment and storage medium

Abstract

The application discloses a gear selecting method and device, electronic equipment and a storage medium, wherein the gear selecting method is applied to an automatic transmission, and the gear selecting method comprises the following steps: determining a fuzzy position of any gear area of the automatic transmission; determining an actual gear selecting interval of the corresponding gear area according to the fuzzy position, and determining an upper edge deformation variable and a lower edge deformation variable according to a deformation curve of the actual gear selecting interval; and determining a gear selecting target value of the corresponding gear area according to upper and lower limit values of the actual gear selecting interval and the upper edge deformation variable and the lower edge deformation variable. The method determines the actual gear selecting space based on the fuzzy position obtained through theoretical calculation, and then determines the final gear selecting target value of each automatic transmission by combining the upper and lower edge deformation variables and the upper and lower limit values of the actual gear selecting space, so that the accurate gear selecting position can be obtained for each transmission, and the problems of gear shifting difficulty and wear of adjacent gear synchronizers caused by the inaccurate gear selecting position are solved.

Description

Technical Field

[0001] This application relates to the field of gearbox technology, and in particular to a gear selection method, device, electronic device, and storage medium. Background Technology

[0002] In related technologies, there is no good method for accurately determining the gear selection position of AMT (Automated Mechanical Transmission). Most methods rely on theoretical calculations to arrive at an approximate position. However, theoretical calculations have limitations, failing to comprehensively consider factors such as component stress and elastic deformation, component fit, and assembly tolerances. Furthermore, due to individual differences between transmissions, theoretically calculated gear selection positions are difficult to adapt to mass production. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, the first objective of this invention is to propose a gear selection method that determines the actual gear selection space based on a theoretically calculated fuzzy position. Then, by combining the upper and lower edge deformations and upper and lower limits of the actual gear selection space, the final gear selection target value for each automatic transmission is determined. This achieves accurate gear selection position for each transmission, thereby solving the problems of shifting difficulties and wear on the synchronizers of adjacent gears caused by inaccurate gear selection positions.

[0004] A second objective of this invention is to provide a computer-readable storage medium.

[0005] The third objective of this invention is to provide an electronic device.

[0006] The fourth objective of this invention is to provide another gear selection device.

[0007] To achieve the above objectives, a gear selection method is proposed according to a first aspect of the present invention, applied to an automatic transmission. The method includes: determining the fuzzy position of any gear zone of the automatic transmission; determining the actual gear selection interval of the corresponding gear zone based on the fuzzy position, and determining the upper edge deformation and lower edge deformation based on the deformation curve of the actual gear selection interval; and determining the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection interval, as well as the upper edge deformation and lower edge deformation.

[0008] According to the gear selection method of this invention, the fuzzy position of any gear zone of an automatic transmission is determined, and the actual gear selection range of the corresponding gear zone is determined based on the fuzzy position. The upper and lower edge deformation variables are determined based on the deformation curve of the actual gear selection range, and the upper and lower limit values, as well as the upper and lower edge deformation variables, are used to determine the gear selection target value of the corresponding gear zone. Thus, based on theoretical calculations, the fuzzy position is obtained, and then for each automatic transmission, the actual gear selection space is obtained. Finally, combining the upper and lower edge deformation variables and upper and lower limit values ​​of the actual gear selection space, the final gear selection target value for each automatic transmission is determined. This achieves accurate gear selection position for each transmission, thereby solving the problems of shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection positions.

[0009] According to one embodiment of the present invention, determining the upper edge deformation and lower edge deformation based on the deformation curve of the actual selection range includes: determining the abrupt change position of the deformation curve; and determining the upper edge deformation and lower edge deformation based on the abrupt change position.

[0010] According to one embodiment of the present invention, determining the abrupt change position of the deformation curve includes: dividing the deformation curve into multiple segments and calculating the slope of each segment; determining a first abrupt change position and a second abrupt change position based on the slope of each segment, wherein the first abrupt change position is used to calculate the upper edge deformation and the second abrupt change position is used to calculate the lower edge deformation.

[0011] According to one embodiment of the present invention, determining the upper edge deformation variable and the lower edge deformation variable based on the mutation position includes: determining the inflection point value of the first mutation position and the inflection point value of the second mutation position respectively; determining the upper edge deformation variable based on the upper limit value of the actual selection range and the inflection point value of the first mutation position, and determining the lower edge deformation variable based on the lower limit value of the actual selection range and the inflection point value of the second mutation position.

[0012] According to one embodiment of the present invention, determining the target value of the corresponding selection area based on the upper and lower limits of the actual selection range, as well as the upper and lower edge shape variables, includes: determining the difference between the upper limit of the actual selection range and the upper edge shape variable, and determining the sum between the lower limit of the actual selection range and the lower edge shape variable; and determining the target value of the selection range based on the difference and the sum.

[0013] According to one embodiment of the present invention, the gear selection target value is determined according to the following formula: F=[(AD)+(B+E)] / 2+C, where A is the upper limit of the actual gear selection range, B is the lower limit of the actual gear selection range, C is the change value of the gear selection position during the gear shifting process under the coupling effect, D is the upper edge deformation, E is the lower edge deformation, and F is the gear selection target value.

[0014] According to one embodiment of the present invention, the gear range of the automatic transmission includes a 1 / 2 gear range, a 3 / 4 gear range, a 5 / 6 gear range, and a reverse gear range.

[0015] To achieve the above objectives, a computer-readable storage medium is provided according to a second aspect of the present invention, having stored thereon a file selection program that, when executed by a processor, implements the file selection method of any of the foregoing embodiments.

[0016] According to the computer-readable storage medium of the present invention, by executing the computer program of the above-described gear selection method, the actual gear selection space is determined based on the fuzzy position obtained by theoretical calculation, and then the final gear selection target value of each automatic transmission is determined by combining the upper and lower edge deformation and upper and lower limit values ​​of the actual gear selection space. This achieves that an accurate gear selection position can be obtained for each transmission, thereby solving the problem of gear shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection position.

[0017] To achieve the above objectives, an electronic device is provided according to a third aspect of the present invention, including a memory, a processor, and a file selection program stored in the memory and executable on the processor. When the processor executes the file selection program, it implements the file selection method of any of the foregoing embodiments.

[0018] According to the electronic device of the present invention, the processor executes the program of the above-described gear selection method, determines the actual gear selection space based on the fuzzy position obtained by theoretical calculation, and then determines the final gear selection target value for each automatic transmission by combining the upper and lower edge deformation and upper and lower limit values ​​of the actual gear selection space. This achieves that an accurate gear selection position can be obtained for each transmission, thereby solving the problem of gear shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection position.

[0019] To achieve the above objectives, a gear selection device is proposed according to a fourth aspect of the present invention, applied to an automatic transmission. The gear selection device includes: a determining module, used to determine the fuzzy position of any gear zone of the automatic transmission, and to determine the actual gear selection range of the corresponding gear zone based on the fuzzy position; and a gear selection calculation module, used to determine the upper edge deformation and lower edge deformation based on the deformation curve of the actual gear selection range, and to determine the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection range, as well as the upper edge deformation and lower edge deformation.

[0020] According to the gear selection device of this invention, a determining module determines the fuzzy position of any gear zone of the automatic transmission, and determines the actual gear selection range of the corresponding gear zone based on the fuzzy position. A gear selection calculation module determines the upper and lower edge deformation variables based on the deformation curve of the actual gear selection range, and determines the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection range, as well as the upper and lower edge deformation variables. Thus, based on theoretical calculations, the fuzzy position is obtained, and then for each automatic transmission, the actual gear selection space is obtained. Combining the upper and lower edge deformation variables and upper and lower limits of the actual gear selection space, the final gear selection target value of each automatic transmission is determined. This achieves accurate gear selection position for each transmission, thereby solving the problems of shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection positions.

[0021] Additional aspects and 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. Attached Figure Description

[0022] Figure 1 This is a flowchart illustrating a file selection method according to an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the deformation curve of the actual gear selection range according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the components of an automatic transmission according to an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the angle offset curve of an automatic transmission according to an embodiment of the present invention;

[0026] Figure 5 This is a system schematic diagram of an electronic device according to an embodiment of the present invention;

[0027] Figure 6 This is a schematic diagram of a gear selection device according to an embodiment of the present invention. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0029] The following description, with reference to the accompanying drawings, outlines the file selection method, apparatus, electronic device, and storage medium of the present invention.

[0030] Figure 1 This is a schematic flowchart of a gear selection method according to an embodiment of the present invention. The gear selection method is applied to an automatic transmission, such as... Figure 1 As shown, the file selection method includes the following steps:

[0031] S101 determines the fuzzy position of any gear zone of the automatic transmission.

[0032] Specifically, the fuzzy position of each gear zone in the automatic transmission is determined using theoretical calculation methods from relevant technologies. Based on the upper or lower angle values ​​of each gear zone, the upper and lower limits of each gear zone are calculated to obtain the fuzzy position of each gear zone.

[0033] Furthermore, in some embodiments, the automatic transmission's gear range includes a 1 / 2 gear range, a 3 / 4 gear range, a 5 / 6 gear range, and a reverse gear range.

[0034] The blurred positions of each data area are shown in Table 1 below:

[0035] Table 1

[0036]

[0037] The value of the fuzzy position in each gear zone is calculated from the data in the angle value. The value range for the 5 / 6 gear zone is between 683 and 713, the value range for the 3 / 4 gear zone is between 505 and 549, the value range for the 1 / 2 gear zone is between 331 and 375, and the value range for the R gear zone is between 166 and 196.

[0038] S102, determine the actual selection range of the corresponding range based on the fuzzy position, and determine the upper edge deformation and lower edge deformation based on the deformation curve of the actual selection range.

[0039] Specifically, the actual gear selection range is obtained by sampling the automatic transmission during actual operation. Figure 2 The deformation curve shown is obtained by sampling the automatic transmission when it is operating in the 5th / 6th gear range. From the vertical axis on the left side of the image, it can be seen that the upper limit of the actual gear selection range, around the theoretically calculated upper limit of the 5th / 6th gear range, is 742 bits; the lower limit, around the theoretically calculated lower limit of the 5th / 6th gear range, is 672 bits. Therefore, the actual gear selection range corresponding to the 5th / 6th gear range is between 672 bits and 742 bits. Then, according to... Figure 2 The deformation curves shown determine the deformation of the upper and lower edges.

[0040] In some embodiments, determining the upper edge deformation and lower edge deformation based on the deformation curve of the actual selected range includes: determining the abrupt change position of the deformation curve; and determining the upper edge deformation and lower edge deformation based on the abrupt change position.

[0041] Specifically, first determine the location of the abrupt change in the deformation curve, and then from... Figure 2 Find the ordinate corresponding to the mutation location in the middle, and then determine the upper edge deformation and lower edge deformation based on the ordinate of the mutation location and the upper and lower limits of the actual selection range.

[0042] In some embodiments, determining the abrupt change location of the deformation curve includes: dividing the deformation curve into multiple segments and calculating the slope of each segment; determining a first abrupt change location and a second abrupt change location based on the slope of each segment, wherein the first abrupt change location is used to calculate the upper edge deformation and the second abrupt change location is used to calculate the lower edge deformation.

[0043] Specifically, it will be as follows Figure 2 The deformation curve shown is divided into multiple segments. The slope of each segment is calculated based on the x-coordinate and y-coordinate of the endpoints of each segment. When the slope changes significantly for the first time, the endpoint corresponding to that slope is determined as the first abrupt change position. When the slope changes significantly for the second time, the endpoint corresponding to that slope is determined as the second abrupt change position.

[0044] In some embodiments, determining the upper edge shape variable and the lower edge shape variable based on the mutation location includes: determining the inflection point value of the first mutation location and the inflection point value of the second mutation location, respectively; determining the upper edge shape variable based on the upper limit value of the actual selection range and the inflection point value of the first mutation location, and determining the lower edge shape variable based on the lower limit value of the actual selection range and the inflection point value of the second mutation location.

[0045] Specifically, such as Figure 2 As shown, the ordinate 730 corresponding to the first mutation position is the inflection point value of the first mutation position, and the ordinate 692 corresponding to the second mutation position is the inflection point value of the second mutation position. Then, the difference between the inflection point value of the first mutation position and the upper limit value of the actual selection range is determined as the upper edge shape variable; that is, the difference between 742 and 730 is calculated to be 12 bits, and this 12-bit difference is the upper edge shape variable. The difference between the inflection point value of the second mutation position and the lower limit value of the actual selection range is determined as the lower edge shape variable; that is, the difference between 692 and 672 is calculated to be 20 bits, and this 20-bit difference is the lower edge shape variable.

[0046] S103, determine the target value of the corresponding gear selection area based on the upper and lower limits of the actual gear selection range, as well as the upper and lower edge shape variables.

[0047] In other words, the target value for the corresponding selection area is determined based on the relationship between the upper limit and the upper edge shape variable of the actual selection area, and the relationship between the lower limit and the lower edge shape variable of the actual selection area.

[0048] In some embodiments, determining the target value for the corresponding selection area based on the upper and lower limits of the actual selection range, as well as the upper and lower edge shape variables, includes: determining the difference between the upper limit of the actual selection range and the upper edge shape variable, and determining the sum between the lower limit of the actual selection range and the lower edge shape variable; and determining the target value based on the difference and the sum.

[0049] Specifically, the difference between the upper limit of the actual selection range and the upper edge shape variable, and the sum between the lower limit of the actual selection range and the lower edge shape variable are determined respectively. Then, the selection target value is determined based on the difference and the sum.

[0050] Furthermore, in some embodiments, the target value for file selection is determined according to the following formula:

[0051] F = [(AD) + (B + E)] / 2 + C,

[0052] Where A is the upper limit of the actual gear selection range, B is the lower limit of the actual gear selection range, C is the change value of the gear selection position during the gear shifting process under the coupling effect, D is the upper edge deformation variable, E is the lower edge deformation variable, and F is the gear selection target value.

[0053] It should be noted that, due to the coupling effect, the gear selection position will undergo a slight change during gear shifting, such as... Figure 3 and Figure 4 As shown, when an automatic transmission shifts to the 5th or 6th gear range, the components inside the automatic transmission vibrate. This can be observed through simulation of the automatic transmission. Figure 4 The curve shown shows that the difference between the ordinate corresponding to the horizontal axis of 1.5 and the ordinate corresponding to the horizontal axis of 2.0 is 0.44°. Therefore, the angle offset during gear shifting is 0.44°. Then, the change value corresponding to the angle offset of 0.44° can be found in Table 2.

[0054] Table 2

[0055]

[0056] Table 2 shows that the change value corresponding to the angle offset of 0.44° is 6.8 bits.

[0057] For example, if the upper limit of the actual selection area is 742 bits, the lower limit of the actual selection area is 672 bits, the change value of the selection position during the gear switching process due to coupling is 6.8 bits, the upper edge deformation is 12 bits, the lower edge deformation is 20 bits, and the target value of the selection calculated according to the above formula is 716 bits.

[0058] In summary, the gear selection method according to embodiments of the present invention determines the fuzzy position of any gear zone of the automatic transmission, determines the actual gear selection range of the corresponding gear zone based on the fuzzy position, determines the upper and lower edge deformation variables based on the deformation curve of the actual gear selection range, and determines the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection range, as well as the upper and lower edge deformation variables. Thus, based on theoretical calculations, the fuzzy position is obtained, and then for each automatic transmission, the actual gear selection space is obtained. Combining the upper and lower edge deformation variables and upper and lower limits of the actual gear selection space, the final gear selection target value for each automatic transmission is determined. This achieves accurate gear selection positions for each transmission, thereby solving the problems of shifting difficulties and wear on adjacent gear synchronizers caused by inaccurate gear selection positions.

[0059] Corresponding to the above embodiments, embodiments of the present invention also provide a computer-readable storage medium having a file selection program stored thereon, which, when executed by a processor, implements the file selection method of any of the foregoing embodiments.

[0060] According to the computer-readable storage medium of the present invention, by executing the computer program of the above-described gear selection method, the actual gear selection space is determined based on the fuzzy position obtained by theoretical calculation, and then the final gear selection target value of each automatic transmission is determined by combining the upper and lower edge deformation and upper and lower limit values ​​of the actual gear selection space. This achieves that an accurate gear selection position can be obtained for each transmission, thereby solving the problem of gear shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection position.

[0061] Corresponding to the above embodiments, embodiments of the present invention also provide an electronic device. For example... Figure 5 As shown, the electronic device 100 includes a memory 110, a processor 120, and a file selection program stored on the memory 110 and executable on the processor 120. When the processor 120 executes the file selection program, it implements the file selection method of any of the foregoing embodiments.

[0062] According to the electronic device of the present invention, the processor executes the program of the above-described gear selection method, determines the actual gear selection space based on the fuzzy position obtained by theoretical calculation, and then determines the final gear selection target value for each automatic transmission by combining the upper and lower edge deformation and upper and lower limit values ​​of the actual gear selection space. This achieves that an accurate gear selection position can be obtained for each transmission, thereby solving the problem of gear shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection position.

[0063] Corresponding to the above embodiments, embodiments of the present invention also provide a gear selection device. The gear selection device is applied to an automatic transmission, such as... Figure 6 As shown, the selection device includes: a determination module 10 and a selection calculation module 20.

[0064] The determination module 10 is used to determine the fuzzy position of any gear zone of the automatic transmission and determine the actual gear selection range of the corresponding gear zone based on the fuzzy position; the gear selection calculation module 20 is used to determine the upper edge deformation and lower edge deformation based on the deformation curve of the actual gear selection range and determine the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection range, as well as the upper edge deformation and lower edge deformation.

[0065] In some embodiments, the selection calculation module 20 is further configured to: determine the abrupt change position of the deformation curve; and determine the upper edge deformation and lower edge deformation based on the abrupt change position.

[0066] In some embodiments, the selection calculation module 20 is further configured to: divide the deformation curve into multiple segments and calculate the slope of each segment; determine the first abrupt change position and the second abrupt change position based on the slope of each segment, wherein the first abrupt change position is used to calculate the upper edge deformation and the second abrupt change position is used to calculate the lower edge deformation.

[0067] In some embodiments, the selection calculation module 20 is further configured to: determine the inflection point value of the first mutation position and the inflection point value of the second mutation position respectively; determine the upper edge deformation based on the upper limit value of the actual selection interval and the inflection point value of the first mutation position, and determine the lower edge deformation based on the lower limit value of the actual selection interval and the inflection point value of the second mutation position.

[0068] In some embodiments, the selection calculation module 20 is further configured to: determine the difference between the upper limit of the actual selection interval and the upper edge shape variable, and determine the sum between the lower limit of the actual selection interval and the lower edge shape variable; and determine the selection target value based on the difference and the sum.

[0069] In some embodiments, the gear selection target value is determined according to the following formula: F=[(AD)+(B+E)] / 2+C, where A is the upper limit of the actual gear selection range, B is the lower limit of the actual gear selection range, C is the change value of the gear selection position during the gear shifting process under the coupling effect, D is the upper edge deformation, E is the lower edge deformation, and F is the gear selection target value.

[0070] In some embodiments, the automatic transmission's gear range includes a 1 / 2 gear range, a 3 / 4 gear range, a 5 / 6 gear range, and a reverse gear range.

[0071] It should be noted that the specific implementation of the file selection device in this embodiment corresponds one-to-one with the specific implementation of the file selection method in the foregoing embodiments of this invention, and will not be repeated here.

[0072] According to the gear selection device of this invention, a determining module determines the fuzzy position of any gear zone of the automatic transmission, and determines the actual gear selection range of the corresponding gear zone based on the fuzzy position. A gear selection calculation module determines the upper and lower edge deformation variables based on the deformation curve of the actual gear selection range, and determines the gear selection target value of the corresponding gear zone based on the upper and lower limits of the actual gear selection range, as well as the upper and lower edge deformation variables. Thus, based on theoretical calculations, the fuzzy position is obtained, and then for each automatic transmission, the actual gear selection space is obtained. Combining the upper and lower edge deformation variables and upper and lower limits of the actual gear selection space, the final gear selection target value of each automatic transmission is determined. This achieves accurate gear selection position for each transmission, thereby solving the problems of shifting difficulties and wear of adjacent gear synchronizers caused by inaccurate gear selection positions.

[0073] It should be noted that the logic and / or steps represented in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing logical functions, and can be embodied in any computer-readable medium for use by, or in conjunction with, an instruction execution system, apparatus, or device (such as a computer-based system, a processor-included system, or other system that can fetch and execute instructions from, an instruction execution system, apparatus, or device). For the purposes of this specification, "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transmit programs for use by, or in conjunction with, an instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of computer-readable media include: an electrical connection having one or more wires (electronic device), a portable computer disk drive (magnetic device), random access memory (RAM), read-only memory (ROM), erasable and editable read-only memory (EPROM or flash memory), fiber optic devices, and portable optical disc read-only memory (CDROM). Alternatively, the computer-readable medium may be paper or other suitable media on which the program can be printed, since the program can be obtained electronically, for example, by optically scanning the paper or other medium, followed by editing, interpreting, or otherwise processing as necessary, and then stored in a computer memory.

[0074] It should be understood that various parts of the present invention can be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented using any one or a combination of the following techniques known in the art: discrete logic circuits having logic gates for implementing logical functions on data signals, application-specific integrated circuits (ASICs) having suitable combinational logic gates, programmable gate arrays (PGAs), field-programmable gate arrays (FPGAs), etc.

[0075] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0076] Furthermore, the terms "first," "second," etc., used in the embodiments of this invention are for descriptive purposes only and should not be construed as indicating or implying relative importance, or implicitly specifying the number of technical features indicated in this embodiment. Therefore, features defined with terms such as "first" and "second" in the embodiments of this invention can explicitly or implicitly indicate that the embodiment includes at least one of those features. In the description of this invention, the word "multiple" means at least two or more, such as two, three, four, etc., unless otherwise explicitly specified in the embodiments.

[0077] In this invention, unless otherwise explicitly specified or limited in the embodiments, the terms "installation," "connection," "joining," and "fixing" appearing in the embodiments should be interpreted broadly. For example, a connection can be a fixed connection, a detachable connection, or an integral part; it can also be a mechanical connection, an electrical connection, etc. Of course, it can also be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components, or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific implementation.

[0078] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A file selection method, characterized in that, Applied to automatic transmissions, the method includes: Determine the fuzzy position of any gear zone of the automatic transmission; The actual selection range of the corresponding range is determined based on the fuzzy position, and the upper edge deformation and lower edge deformation are determined based on the deformation curve of the actual selection range. The target value for the corresponding gear selection area is determined based on the upper and lower limits of the actual gear selection range, as well as the upper and lower edge shape variables. The upper and lower edge deformation variables are determined based on the deformation curve of the actual selected range, including: Determine the location of the abrupt change in the deformation curve; The upper edge shape variable and the lower edge shape variable are determined based on the mutation location; Determining the abrupt change location of the deformation curve includes: The deformation curve is divided into multiple segments, and the slope of each segment is calculated. The first abrupt change position and the second abrupt change position are determined based on the slope of each curve segment, wherein the first abrupt change position is used to calculate the upper edge deformation and the second abrupt change position is used to calculate the lower edge deformation. Based on the upper and lower limits of the actual selection range, and the upper and lower edge shape variables, the target value for the corresponding selection range is determined, including: Determine the difference between the upper limit of the actual selection range and the upper edge shape variable, and determine the sum between the lower limit of the actual selection range and the lower edge shape variable; The target value for file selection is determined based on the difference and the sum. The target value for file selection is determined according to the following formula: F = [(AD) + (B + E)] / 2 + C Wherein, A is the upper limit of the actual gear selection range, B is the lower limit of the actual gear selection range, C is the change value of the gear selection position during the gear shifting process under the coupling effect, D is the upper edge deformation, E is the lower edge deformation, and F is the gear selection target value.

2. The file selection method according to claim 1, characterized in that, Determining the upper and lower edge shape variables based on the mutation location includes: Determine the inflection point value at the first mutation position and the inflection point value at the second mutation position, respectively; The upper edge shape variable is determined based on the upper limit of the actual selection range and the inflection point value of the first mutation position, and the lower edge shape variable is determined based on the lower limit of the actual selection range and the inflection point value of the second mutation position.

3. The file selection method according to claim 1, characterized in that, The automatic transmission has gear zones including 1 / 2 gear zone, 3 / 4 gear zone, 5 / 6 gear zone and R gear zone.

4. A computer-readable storage medium, characterized in that, It stores a file selection program, which, when executed by a processor, implements the file selection method according to any one of claims 1-3.

5. An electronic device, characterized in that, The system includes a memory, a processor, and a file selection program stored in the memory and executable on the processor. When the processor executes the file selection program, it implements the file selection method according to any one of claims 1-3.

6. A gear selection device, characterized in that, The gear selection device, applied to an automatic transmission, includes: The determining module is used to determine the fuzzy position of any gear zone of the automatic transmission, and to determine the actual gear selection range of the corresponding gear zone based on the fuzzy position; The selection calculation module is used to determine the upper edge deformation and lower edge deformation based on the deformation curve of the actual selection range, and to determine the selection target value of the corresponding range based on the upper and lower limits of the actual selection range and the upper and lower edge deformation. The file selection calculation module is also used for: Determine the location of the abrupt change in the deformation curve; The upper edge shape variable and the lower edge shape variable are determined based on the mutation location; The file selection calculation module is also used for: The deformation curve is divided into multiple segments, and the slope of each segment is calculated. The first abrupt change position and the second abrupt change position are determined based on the slope of each curve segment, wherein the first abrupt change position is used to calculate the upper edge deformation and the second abrupt change position is used to calculate the lower edge deformation. The file selection calculation module is also used for: Determine the difference between the upper limit of the actual selection range and the upper edge shape variable, and determine the sum between the lower limit of the actual selection range and the lower edge shape variable; The target value for file selection is determined based on the difference and the sum. The target value for file selection is determined according to the following formula: F = [(AD) + (B + E)] / 2 + C Wherein, A is the upper limit of the actual gear selection range, B is the lower limit of the actual gear selection range, C is the change value of the gear selection position during the gear shifting process under the coupling effect, D is the upper edge deformation, E is the lower edge deformation, and F is the gear selection target value.

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