CN115839408A - Gear position control method and device, electronic equipment, and storage medium - Google Patents

Abstract

The application discloses a gear control method and device, electronic equipment and a storage medium, wherein the method comprises the following steps: when the gear needs to be replaced, determining a first rotational inertia of a gear of the current gear, a target gear needing to be replaced, a current first rotational speed of an engine and a second rotational speed corresponding to the engine when the gear needs to be replaced; determining target gear kinetic energy corresponding to the first rotating speed and the first rotating inertia according to a first mapping relation of the rotating speed, the rotating inertia and the gear kinetic energy which is established in advance; determining the kinetic energy of the target gear and the second moment of inertia of the gear of the target gear corresponding to the second rotating speed based on the first mapping relation; determining a target rotation radius corresponding to the second moment of inertia according to a second mapping relation between the preset moment of inertia and the rotation radius of the gear; and in the gear changing process, adjusting the rotating radius corresponding to the target gear through the target rotating radius. The gear shifting operation is smoother, and the driving comfort is improved.

Description

Gear position control method and device, electronic equipment, and storage medium

technical field

The present invention relates to the technical field of shift control, in particular to a gear position control method and device, electronic equipment, and a storage medium.

Background technique

The shifting strategy of automatic transmission vehicles in the prior art is generally: to control the shifting according to parameters such as vehicle speed, engine speed or vehicle acceleration, but there will be vibration or frustration of the vehicle during the shifting process of the gearbox, which will affect the comfort of the vehicle. It will have a certain impact, which will seriously affect the riding experience of the drivers and passengers.

Contents of the invention

The purpose of the present application is to provide a gear position control method and device, electronic equipment, and a storage medium. It is used to solve the vibration or frustration of the vehicle during the shifting process of the gearbox, which will have a certain impact on the comfort of the vehicle, and seriously affect the riding experience of the driver and passengers.

In a first aspect, an embodiment of the present application provides a gear position control method, the method comprising:

When the gear needs to be changed, determine the first moment of inertia of the current gear, the target gear to be changed, the current first engine speed and the corresponding second engine speed when the gear is changed;

determining the target gear kinetic energy corresponding to the first rotational speed and the first moment of inertia according to the pre-established first mapping relationship between the engine speed, the moment of inertia and the kinetic energy of the gear;

Based on the first mapping relationship, determining the target gear kinetic energy and the second moment of inertia of the target gear gear corresponding to the second rotational speed;

determining a target radius of rotation corresponding to the second moment of inertia according to the pre-established second mapping relationship between the moment of inertia and the radius of rotation of the gear;

In the process of changing gears, the rotation radius corresponding to the target gear is adjusted through the target rotation radius.

In some possible embodiments, the second rotational speed corresponding to the engine when changing gears is determined in the following manner:

Determining a target shift speed difference corresponding to the target gear according to a first correspondence between a preset gear position and a shift speed difference;

According to the target shift speed difference and the first speed, the corresponding second speed of the engine is determined when the gear is changed.

In some possible embodiments, the first moment of inertia of the current gear gear is determined by the following method:

According to the second corresponding relationship between the preset gear and the moment of inertia, the first moment of inertia of the gear of the current gear is determined.

In some possible embodiments, after the target gear that needs to be replaced is determined, the method further includes:

determining a target moment of inertia corresponding to the target gear according to the second corresponding relationship;

The moment of inertia corresponding to the target gear is adjusted to the target moment of inertia.

In some possible embodiments, the method also includes:

determining an initial radius of rotation corresponding to the first moment of inertia according to the second mapping relationship;

In the process of changing gears, the initial radius of rotation is adjusted through the target radius of rotation.

In the second aspect, the embodiment of the present application provides a gear position control device, the device comprising:

The initial determination module is used to determine the first moment of inertia of the current gear gear, the target gear to be replaced, the current first rotational speed of the engine, and the corresponding second rotational speed of the engine when the gear is changed when the gear needs to be changed;

determining the target gear kinetic energy module, configured to determine the target gear kinetic energy corresponding to the first rotational speed and the first moment of inertia according to the pre-established first mapping relationship between the engine speed, the moment of inertia and the kinetic energy of the gear;

determining a second moment of inertia module, configured to determine the target gear kinetic energy and the second moment of inertia of the gear in the target gear corresponding to the second rotational speed based on the first mapping relationship;

determining a target radius of rotation module, configured to determine a target radius of rotation corresponding to the second moment of inertia according to a pre-established second mapping relationship between the moment of inertia and the radius of rotation of the gear;

The adjustment module is configured to adjust the rotation radius corresponding to the target gear through the target rotation radius during the shifting process.

In a third aspect, the embodiment of the present application provides an electronic device, including at least one processor; and a memory connected in communication with the at least one processor; wherein, the memory stores information that can be executed by the at least one processor. Instructions, the instructions are executed by the at least one processor, so that the at least one processor can execute the gear position control method provided in the first aspect above.

In a fourth aspect, the embodiment of the present application provides a computer storage medium, the computer storage medium stores a computer program, and the computer program is used to make a computer execute the gear position control method provided in the first aspect above.

In the embodiment of the present application, in order to solve the problem that the vibration or frustration of the vehicle will occur during the shifting process of the gearbox, which will have a certain impact on the comfort of the vehicle and seriously affect the riding experience of the driver and passengers, the embodiment of the present application Fully consider the moment of inertia of the gears of the gearbox, and use gears with variable moment of inertia, so that the shifting operation is smoother, the driving comfort is improved, and the economy and emission can also be improved to a certain extent, and the gear position control is improved. s efficiency.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Description of drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the accompanying drawings that need to be used in the embodiments of the present application. Obviously, the accompanying drawings described below are only some embodiments of the present application. Those of ordinary skill in the art can also obtain other drawings based on these drawings without making creative efforts.

FIG. 1 is a schematic diagram of parameter changes during a gear shift process according to an embodiment of the present application;

FIG. 2 is a schematic flowchart of a gear position control method according to an embodiment of the present application;

FIG. 3 is a schematic flowchart of a gear position control method according to an embodiment of the present application;

Fig. 4 is a schematic structural diagram of a gear control device according to an embodiment of the present application;

Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Detailed ways

The technical solutions in the embodiments of the present application will be described clearly and in detail below in conjunction with the accompanying drawings. In the description of the embodiments of this application, unless otherwise specified, "/" means or, for example, A/B can mean A or B; "and/or" in the text is only a description of the association of associated objects relationship, which means that there may be three kinds of relationships, for example, A and/or B, can mean: A exists alone, A and B exist at the same time, and B exists alone. In addition, in the description of the embodiment of this application, " A plurality means two or more than two.

In the description of the embodiments of the present application, unless otherwise specified, the term "plurality" refers to two or more, and other quantifiers are similar. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention. The application is not intended to limit the application, and the embodiments of the application and the features in the embodiments can be combined with each other under the condition of no conflict.

In order to further illustrate the technical solution provided by the embodiments of the present application, it will be described in detail below in conjunction with the accompanying drawings and specific implementation methods. Although the embodiments of the present application provide the method operation steps as shown in the following embodiments or drawings, more or less operation steps may be included in the method based on conventional or creative efforts. In the steps where logically there is no necessary causal relationship, the execution order of these steps is not limited to the execution order provided in the embodiment of the present application. The method can be executed sequentially or in parallel according to the methods shown in the embodiments or drawings during the actual processing process or when the control device is executed.

In view of the vibration or frustration of the vehicle during the shifting process of the gearbox in the related art, it will have a certain impact on the comfort of the vehicle, and seriously affect the riding experience of the drivers and passengers. The present application proposes a gear position control method and device, and electronic equipment, which can make gear shifting smoother and improve driving comfort.

Additional features and advantages of the application will be set forth in the description which follows, and, in part, will be obvious from the description, or may be learned by practice of the application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

The gear position control method in the embodiment of the present application will be described in detail below with reference to the accompanying drawings.

Explanation of related terms:

Moment of inertia: The measurement of the rotational inertia of a rigid body around an axis. The moment of inertia is only determined by the shape, mass distribution, and position of the rotational axis of the rigid body, and has nothing to do with the rotational state of the rigid body around the axis (such as the magnitude of the angular velocity).

In the current gearbox shifting process, there will be vibration or frustration of the vehicle, which will have a certain impact on the comfort of the vehicle. Part of the reason is that the moment of inertia of the gears in different gears in the gearbox is different. Figure 1 is a certain The curve diagram of relevant parameters during the shifting process of the 12-speed gearbox of a commercial vehicle. The abscissa is time, and the ordinate is the speed, gear, and vehicle speed from bottom to top. It can be seen from Figure 1 that with the increase of the gear , while the vehicle speed is rising, there will be a speed fluctuation process after each gear change. Through multiple tests, it is found that the moment of inertia corresponding to different gears of the gearbox is very different. See Table 1 for the moment of inertia corresponding to each gear of a certain vehicle equipped with a gearbox. If the moment of inertia is ignored during the shifting process The energy generated will lead to improper timing of shifting or cause the vehicle to feel frustrated during the process of shifting gears, seriously affecting driving comfort, vehicle economy and emission performance.

name Moment of inertia/kg.m² Gearbox 1 gear 30 Gearbox 6 gears 5 Gearbox 12 gears 0.3

Fig. 2 shows a schematic flow chart of a gear position control method provided by an embodiment of the present application, including:

Step 201: When the gear needs to be changed, determine the first moment of inertia of the current gear, the target gear to be changed, the current first engine speed and the corresponding second engine speed when the gear is changed.

Specifically, the second rotational speed corresponding to the engine when changing gears is determined in the following manner:

According to the first corresponding relationship between the preset gear position and the shifting speed difference, determine the target shifting speed difference corresponding to the target gear; through the target shifting speed difference and the first speed, determine the The corresponding second speed of the engine at the bit time.

The first correspondence represents the shift speed difference corresponding to each gear. For example, the shift speed difference when the 1st gear is upgraded to the 3rd gear is a. When the target gear is determined to be the 3rd gear, the current gear is used The first rotational speed A and the shifting rotational speed difference a determine the second rotational speed of the target gear, ie A+a.

As an optional implementation, the first moment of inertia of the current gear is determined by the following method: according to the second corresponding relationship between the preset gear and the moment of inertia, the first moment of inertia of the current gear is determined.

The second correspondence represents the moment of inertia of the gear corresponding to each gear. For example, it is known that the current gear is the first gear, and the first moment of inertia corresponding to the first gear is determined according to the second correspondence.

Step 202: Determine the target gear kinetic energy corresponding to the first rotational speed and the first moment of inertia according to the pre-established first mapping relationship between the engine speed, the moment of inertia and the kinetic energy of the gear.

Specifically, the present application determines the first mapping relationship through the following formula:

E＝(J*(2πn) ² )/2;

Among them, E is the kinetic energy of the gear, J is the moment of inertia, and n is the engine speed. It can be seen from the formula that, according to the pre-established first mapping relationship, after the first rotational speed and the first moment of inertia are determined, the target gear kinetic energy can be determined.

Step 203: Based on the first mapping relationship, determine the second moment of inertia of the target gear gear corresponding to the target gear kinetic energy and the second rotational speed.

Specifically, according to the principle of conservation of kinetic energy, when shifting gears, the kinetic energy of the gears before shifting is guaranteed to be in balance with the kinetic energy of gears after shifting, that is, the kinetic energy of gears before shifting is equal to the kinetic energy of gears after shifting. shock and frustration. Based on the first mapping relationship, the target gear kinetic energy (E) is known, and the second rotational speed (n) is known, so the second moment of inertia can be obtained.

Step 204: According to the second mapping relationship between the moment of inertia established in advance and the radius of rotation of the gear, determine the target radius of rotation corresponding to the second moment of inertia.

Specifically, the second mapping relationship is determined by the following formula:

J = mr ² ;

Among them, m is the mass of the gear, r is the radius of rotation of the gear, and J is the moment of inertia. From the second mapping relationship formula, it can be known that the moment of inertia of the gear with the same mass is proportional to the radius of rotation of the gear. After the second moment of inertia is determined through the first mapping relationship, the target radius of rotation corresponding to the second moment of inertia is determined through the formula of the second mapping relationship.

Step 205: During the process of changing gears, adjust the rotation radius corresponding to the target gear according to the target rotation radius.

Specifically, after obtaining the target radius of rotation through the second mapping relationship formula in step 204, it can be seen that if the gear radius reaches the target radius of rotation after shifting gears, the effect of smooth shifting and preventing frustration can be achieved. During the process of changing gears, the radius of rotation corresponding to the target gear is adjusted so that the radius of rotation corresponding to the target gear reaches the target radius of rotation.

As an optional implementation manner, after the target gear that needs to be replaced is determined, the method further includes: determining the target moment of inertia corresponding to the target gear according to the second corresponding relationship; The inertia is adjusted to the target moment of inertia.

Specifically, in order to prevent insufficient adjustment, the target moment of inertia of the gear corresponding to the target gear is determined according to the second corresponding relationship, and the moment of inertia corresponding to the target gear is adjusted to the target moment of inertia before the gear is changed. , so that after the subsequent gear shift, the gear rotation radius is adjusted on the basis of the target moment of inertia, so that the adjustment result is more accurate, and the adjustment time is also saved to a certain extent, and the efficiency of gear position control is improved.

As an optional implementation manner, the method further includes: according to the second mapping relationship, determining the initial radius of rotation corresponding to the first moment of inertia; The initial rotation radius is adjusted.

Specifically, if only adjusting the moment of inertia of the gear corresponding to the target gear still does not achieve the best effect, in order to improve the efficiency of gear control, the target rotation radius can be used to simultaneously adjust the current initial rotation radius and the rotation corresponding to the target gear Radius, so as to reduce the frustration of the vehicle before and after shifting.

This application fully considers the moment of inertia of the gears of the gearbox, and uses gears with variable moment of inertia, so that the shifting operation is smoother, the driving comfort is improved, and the economy and emissions can also be improved to a certain extent. bit control efficiency.

Refer to Fig. 3 for the overall flow chart of the gear position control of this application;

Step 301: Determine that gear needs to be changed;

Step 302: Determine the target shift speed difference corresponding to the target gear according to the first corresponding relationship between the preset gear position and the shift speed difference;

Step 303: Determine the second rotational speed corresponding to the engine when changing gears according to the target shift rotational speed difference and the first rotational speed;

Step 304: Determine the first moment of inertia of the current gear gear according to the second corresponding relationship between the preset gear position and the moment of inertia;

Step 305: Determine the target moment of inertia corresponding to the target gear according to the second corresponding relationship;

Step 306: Adjust the moment of inertia corresponding to the target gear to the target moment of inertia;

Step 307: Determine the target gear kinetic energy corresponding to the first rotational speed and the first moment of inertia;

The determination is made according to the pre-established first mapping relationship between the engine speed, the moment of inertia and the kinetic energy of the gear.

Step 308: Determine the target gear kinetic energy and the second moment of inertia of the gear in the target gear corresponding to the second rotational speed;

Step 309: Determine the target radius of rotation corresponding to the second moment of inertia;

The target radius of rotation is determined according to the second mapping relationship between the moment of inertia established in advance and the radius of rotation of the gear.

Step 310: According to the second mapping relationship, determine the initial radius of rotation corresponding to the first moment of inertia;

Step 311: During the process of changing gears, adjust the initial radius of rotation according to the target radius of rotation;

Step 312: In the process of changing gears, adjust the rotation radius corresponding to the target gear according to the target rotation radius.

Example 2

Based on the same inventive concept, the present application also provides a gear position control device, as shown in Figure 4, the device includes:

The initial determination module 401 is used to determine the first moment of inertia of the gear in the current gear, the target gear to be replaced, the current first rotational speed of the engine, and the corresponding second rotational speed of the engine when the gear is changed when the gear needs to be changed. ;

Determine the target gear kinetic energy module 402, configured to determine the target gear kinetic energy corresponding to the first rotational speed and the first moment of inertia according to the pre-established first mapping relationship between the engine speed, moment of inertia and gear kinetic energy;

Determine the second moment of inertia module 403, configured to determine the second moment of inertia of the target gear gear corresponding to the target gear kinetic energy and the second rotational speed based on the first mapping relationship;

Determine the target radius of rotation module 404, configured to determine the target radius of rotation corresponding to the second moment of inertia according to the pre-established second mapping relationship between the moment of inertia and the radius of rotation of the gear;

The adjustment module 405 is configured to adjust the rotation radius corresponding to the target gear according to the target rotation radius during the gear changing process.

Optionally, the initial determination module 401 is specifically configured to: determine a target shift speed difference corresponding to the target gear according to a first correspondence between a preset gear position and a shift speed difference;

According to the target shift speed difference and the first speed, the corresponding second speed of the engine is determined when the gear is changed.

Optionally, the initial determination module 401 is specifically configured to: determine the first moment of inertia of the current gear gear according to the preset second corresponding relationship between the gear position and the moment of inertia.

Optionally, the initial determination module 401 is further configured to: determine the target moment of inertia corresponding to the target gear according to the second corresponding relationship; adjust the moment of inertia corresponding to the target gear to the target moment of inertia inertia.

Optionally, the adjustment module 405 is further configured to: determine the initial radius of rotation corresponding to the first moment of inertia according to the second mapping relationship; The initial rotation radius is adjusted.

After introducing the gear position control method and device according to the exemplary embodiment of the present application, next, an electronic device according to another exemplary embodiment of the present application is introduced.

Those skilled in the art can understand that various aspects of the present application can be implemented as a system, method or program product. Therefore, various aspects of the present application can be specifically implemented in the following forms, that is: a complete hardware implementation, a complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, which can be collectively referred to herein as "circuit", "module" or "system".

In some possible implementation manners, an electronic device according to the present application may at least include at least one processor and at least one memory. Wherein, the memory stores program codes, and when the program codes are executed by the processor, the processor is made to execute the steps in the gear position control method described above in this specification according to various exemplary embodiments of the present application.

The electronic device 130 according to this embodiment of the present application, that is, the above-mentioned temperature prediction and decision-making device, will be described below with reference to FIG. 5 . The electronic device 130 shown in FIG. 5 is only an example, and should not limit the functions and scope of use of this embodiment of the present application.

As shown in FIG. 5, the electronic device 130 is represented in the form of a general electronic device. Components of the electronic device 130 may include, but are not limited to: at least one processor 131 , at least one memory 132 , and a bus 133 connecting different system components (including the memory 132 and the processor 131 ).

Bus 133 represents one or more of several types of bus structures, including a memory bus or memory controller, a peripheral bus, a processor, or a local bus using any of a variety of bus structures.

The memory 132 may include readable media in the form of volatile memory, such as random access memory (RAM) 1321 and/or cache memory 1322 , and may further include a read only memory (ROM) 1323 .

Memory 132 may also include programs/utilities 1325 having a set (at least one) of program modules 1324 including, but not limited to, an operating system, one or more application programs, other program modules, and program data, which Each or some combination of the examples may include the implementation of a network environment.

Electronic device 130 may also communicate with one or more external devices 134 (e.g., keyboards, pointing devices, etc.), and may also communicate with one or more devices that enable a user to interact with electronic device 130, and/or communicate with one or more devices that enable the electronic device to 130 is capable of communicating with any device (eg, router, modem, etc.) that communicates with one or more other electronic devices. Such communication may occur through input/output (I/O) interface 135 . Moreover, the electronic device 130 can also communicate with one or more networks (such as a local area network (LAN), a wide area network (WAN) and/or a public network such as the Internet) through the network adapter 136 . As shown, network adapter 136 communicates with other modules for electronic device 130 over bus 133 . It should be understood that although not shown, other hardware and/or software modules may be used in conjunction with electronic device 130, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.

In some possible implementations, various aspects of a gear position control method provided in this application can also be implemented in the form of a program product, which includes program code. When the program product runs on a computer device, the program code uses The purpose is to make the computer device execute the steps of a gear position control method described above in this specification according to various exemplary embodiments of the present application.

A program product may take the form of any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or any combination thereof. More specific examples (non-exhaustive list) of readable storage media include: electrical connection with one or more conductors, portable disk, hard disk, random access memory (RAM), read only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

The program product for monitoring of the embodiment of the present application may adopt a portable compact disk read only memory (CD-ROM) and include program codes, and may be run on an electronic device. However, the program product of the present application is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program, and the program may be used by or in combination with an instruction execution system, device, or device.

A readable signal medium may include a data signal carrying readable program code in baseband or as part of a carrier wave. Such propagated data signals may take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. A readable signal medium may also be any readable medium other than a readable storage medium that can transmit, propagate, or transport a program for use by or in conjunction with an instruction execution system, apparatus, or device.

Program code embodied on a readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

Program codes for performing the operations of the present application can be written in any combination of one or more programming languages, including object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural programming Language - such as "C" or similar programming language. The program code may execute entirely on the user's electronic device, partly on the user's device, as a stand-alone software package, partly on the user's electronic device and partly on a remote electronic device, or entirely on the remote electronic device or service Execute on the terminal. In cases involving a remote electronic device, the remote electronic device may be connected to the user electronic device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it may be connected to an external electronic device (such as by using an Internet service Provider via Internet connection).

It should be noted that although several units or subunits of the apparatus are mentioned in the above detailed description, this division is only exemplary and not mandatory. Actually, according to the embodiment of the present application, the features and functions of two or more units described above may be embodied in one unit. Conversely, the features and functions of one unit described above may be further divided to be embodied by a plurality of units.

In addition, while operations of the methods of the present application are depicted in the figures in a particular order, there is no requirement or implication that these operations must be performed in that particular order, or that all illustrated operations must be performed to achieve desirable results. Additionally or alternatively, certain steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution.

Those skilled in the art should understand that the embodiments of the present application may be provided as methods, systems, or computer program products. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) having computer-usable program code embodied therein.

The present application is described with reference to flowchart illustrations and block diagrams of methods, apparatus (systems), and computer program products according to embodiments of the present application. It should be understood that each procedure and/or block in the flowchart and block diagrams, and combinations of procedures and blocks in the flowchart and block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a general purpose computer, special purpose computer, embedded processor, or processor of other programmable data processing equipment to produce a machine such that the instructions executed by the processor of the computer or other programmable data processing equipment produce a An apparatus for realizing the functions specified in one or more procedures of the flowchart and one or more blocks of the block diagram.

These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to operate in a specific manner, such that the instructions stored in the computer-readable memory produce an article of manufacture comprising instruction means, the instructions The device realizes the function specified in one or more procedures of the flowchart and one or more blocks of the block diagram.

These computer program instructions can also be loaded onto a computer or other programmable data processing device, causing a series of operational steps to be performed on the computer or other programmable device to produce a computer-implemented process, thereby The instructions provide steps for implementing the functions specified in the flow diagram flow or flow and block diagram flow or block.

While preferred embodiments of the present application have been described, additional changes and modifications to these embodiments can be made by those skilled in the art once the basic inventive concept is appreciated. Therefore, the appended claims are intended to be construed to cover the preferred embodiment and all changes and modifications which fall within the scope of the application.

Obviously, those skilled in the art can make various changes and modifications to the application without departing from the spirit and scope of the application. In this way, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application is also intended to include these modifications and variations.

Claims (10)

1. A gear control method, characterized by comprising:

when the gear needs to be replaced, determining a first rotational inertia of a gear in the current gear, a target gear needing to be replaced, a current first rotational speed of an engine and a second rotational speed corresponding to the engine when the gear needs to be replaced;

determining target gear kinetic energy corresponding to the first rotating speed and the first rotating inertia according to a first mapping relation of the rotating speed, the rotating inertia and the gear kinetic energy of an engine, which is established in advance;

determining a second moment of inertia of the gear of the target gear corresponding to the target gear kinetic energy and the second rotating speed based on the first mapping relation;

determining a target rotation radius corresponding to a second moment of inertia according to a second mapping relation between the preset moment of inertia and the rotation radius of the gear;

and in the gear changing process, adjusting the rotating radius corresponding to the target gear through the target rotating radius.

2. The method according to claim 1, characterized in that the corresponding second rotational speed of the engine at the gear change is determined by:

determining a target gear-shifting rotation speed difference corresponding to the target gear according to a first corresponding relation between a preset gear and the gear-shifting rotation speed difference;

and determining a second rotating speed corresponding to the engine when the gear is replaced according to the target gear shifting rotating speed difference and the first rotating speed.

3. The method according to claim 1, characterized in that the first moment of inertia of the gear of the current gear is determined by:

and determining the first rotational inertia of the gear at the current gear according to a preset second corresponding relation between the gear and the rotational inertia.

4. The method of claim 3, wherein after determining the target gear that needs to be replaced, the method further comprises:

determining a target moment of inertia corresponding to the target gear according to the second corresponding relation;

and adjusting the rotary inertia corresponding to the target gear to the target rotary inertia.

5. The method of claim 1, further comprising:

determining an initial rotation radius corresponding to the first rotation inertia according to the second mapping relation;

and in the gear changing process, adjusting the initial rotating radius through the target rotating radius.

6. A shift position control device, characterized by comprising:

the system comprises an initial determination module, a first gear changing module, a second gear changing module and a control module, wherein the initial determination module is used for determining a first rotational inertia of a gear of a current gear, a target gear to be changed, a current first rotational speed of an engine and a second rotational speed corresponding to the engine when the gear is changed;

the target gear kinetic energy determining module is used for determining target gear kinetic energy corresponding to the first rotating speed and the first rotating inertia according to a first mapping relation of the rotating speed, the rotating inertia and the gear kinetic energy which is established in advance;

the second rotational inertia determining module is used for determining the kinetic energy of the target gear and the second rotational inertia of the gear of the target gear corresponding to the second rotating speed based on the first mapping relation;

the target rotation radius determining module is used for determining a target rotation radius corresponding to the second moment of inertia according to a second mapping relation between the preset moment of inertia and the rotation radius of the gear;

and the adjusting module is used for adjusting the rotating radius corresponding to the target gear through the target rotating radius in the gear changing process.

7. The apparatus of claim 6, wherein the initial determination module is specifically configured to: determining a target gear-shifting rotation speed difference corresponding to the target gear according to a first corresponding relation between a preset gear and the gear-shifting rotation speed difference;

and determining a second rotating speed corresponding to the engine when the gear is replaced according to the target gear shifting rotating speed difference and the first rotating speed.

8. The apparatus of claim 6, wherein the initial determination module is specifically configured to: and determining the first rotational inertia of the gear at the current gear according to a preset second corresponding relation between the gear and the rotational inertia.

9. An electronic device comprising at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the method of any one of claims 1-5.

10. A computer storage medium, characterized in that the computer storage medium stores a computer program for causing a computer to perform the method according to any one of claims 1-5.

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