Tractor electric control synchronizer rotating speed synchronous control method, system, equipment and medium

Abstract

The invention discloses a rotating speed synchronous control method, system and equipment for an electric control synchronizer of a tractor and a medium, and relates to the technical field of agricultural machinery, the method comprises the steps that when any tractor to be controlled obtains a synchronizer gear shifting instruction, a main speed change clutch and an auxiliary speed change synchronizer are controlled to work according to a first preset strategy; based on a target gear in the synchronizer gear shifting instruction, a target synchronizer rotating speed difference is calculated in combination with the current synchronizer gear; and when the rotating speed difference of the target synchronizer meets the preset condition, the tractor to be controlled is controlled through a second preset strategy, and gear shifting treatment is completed. The gear shifting smoothness, reliability and response speed are effectively improved, and the problems of impact, pause, power interruption and the like possibly occurring in the gear shifting process are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a method, system, equipment and medium for synchronously controlling the speed of an electronically controlled synchronizer of a tractor. Background Art

[0002] In traditional tractor transmission designs, synchronizer operation relies entirely on manual operation by the driver. This approach places high demands on the driver's driving skills. The driver must accurately judge vehicle speed, engine speed, and load conditions within a short period of time, while also precisely controlling the clutch and shift lever to achieve smooth gear shifts. Improper operation can cause shift shock, increased gear wear, and even damage transmission components, impacting the tractor's service life and operating efficiency. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to address the deficiencies of the existing technology, and specifically provide a method, system, device and medium for synchronous speed control of a tractor electronically controlled synchronizer, as follows:

[0004] 1) In a first aspect, the present invention provides a method for synchronously controlling the speed of a tractor electronically controlled synchronizer. The specific technical solution is as follows:

[0005] When any tractor to be controlled obtains a synchronizer shift instruction, the main transmission clutch and the auxiliary transmission synchronizer are controlled to work according to a first preset strategy;

[0006] Calculate the target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear;

[0007] When the target synchronizer speed difference meets the preset condition, the tractor to be controlled is controlled through the second preset strategy to complete the gear shifting process.

[0008] The beneficial effects of the tractor electronic synchronizer speed synchronization control method provided by the present invention are as follows:

[0009] The main transmission clutch and auxiliary transmission synchronizer are operated through clear preset strategies to ensure the orderly execution of gear shifting. At the same time, the target synchronizer speed difference is calculated based on the target gear and the current gear, and this is used as the basis to judge whether the preset conditions are met and then adopt corresponding control strategies. This effectively improves the smoothness, reliability and response speed of gear shifting, reduces the impact, setbacks and power interruptions that may occur during gear shifting, helps to improve the operating performance and driving comfort of the tractor, reduce mechanical losses, extend the service life of the equipment, and to a certain extent improve operating efficiency and adapt to the gear shifting needs under different working conditions.

[0010] Based on the above solution, the present invention can also be improved as follows.

[0011] Furthermore, the first preset strategy includes: disconnecting the main transmission clutch of the tractor to be controlled, and simultaneously controlling the auxiliary transmission synchronizer of the tractor to be controlled to be in neutral.

[0012] Furthermore, it also includes:

[0013] When the target synchronizer speed difference does not meet the preset conditions, the auxiliary transmission synchronizer is controlled to engage the gear and the main transmission clutch is engaged to complete the gear shift control.

[0014] Furthermore, the preset condition is that the target synchronizer speed difference is within a preset speed difference range.

[0015] Furthermore, the second preset strategy is:

[0016] When the target synchronizer speed difference is greater than the upper limit of the preset speed difference range, the synchronizer active end speed reduction control process is performed;

[0017] When the target synchronizer speed difference is less than the target threshold, the main transmission clutch is controlled to be disconnected, and the auxiliary transmission synchronizer is controlled to be engaged;

[0018] When the target synchronizer speed difference is less than the lower limit of the preset speed difference range, the synchronizer active end speed increase control process is performed.

[0019] 2) In a second aspect, the present invention further provides a tractor electronic synchronizer speed synchronization control system, the specific technical solution of which is as follows:

[0020] The first judgment module is used to: when any tractor to be controlled obtains a synchronizer shift instruction, control the main transmission clutch and the auxiliary transmission synchronizer to work according to a first preset strategy;

[0021] The calculation module is used to calculate the target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear;

[0022] The control module is used to: when the target synchronizer speed difference meets the preset condition, control the tractor to be controlled through the second preset strategy to complete the gear shifting process.

[0023] Based on the above solution, the present invention can also be improved as follows.

[0024] Furthermore, the first preset strategy includes: disconnecting the main transmission clutch of the tractor to be controlled, and simultaneously controlling the auxiliary transmission synchronizer of the tractor to be controlled to be in neutral.

[0025] Furthermore, it also includes:

[0026] The second judgment module is used to: when the target synchronizer speed difference does not meet the preset condition, control the auxiliary transmission synchronizer to engage the gear and engage the main transmission clutch to complete the gear shift control.

[0027] Furthermore, the preset condition is that the target synchronizer speed difference is within a preset speed difference range.

[0028] Furthermore, the second preset strategy is:

[0029] When the target synchronizer speed difference is greater than the upper limit of the preset speed difference range, the synchronizer active end speed reduction control process is performed;

[0030] When the target synchronizer speed difference is less than the target threshold, the main transmission clutch is controlled to be disconnected, and the auxiliary transmission synchronizer is controlled to be engaged;

[0031] When the target synchronizer speed difference is less than the lower limit of the preset speed difference range, the synchronizer active end speed increase control process is performed.

[0032] 3) In a third aspect, the present invention further provides an electronic device, comprising a processor coupled to a memory, wherein the memory stores at least one computer program, and the at least one computer program is loaded and executed by the processor so that the electronic device implements any of the above methods.

[0033] 4) In a fourth aspect, the present invention further provides a computer-readable storage medium, in which at least one computer program is stored, and the at least one computer program is loaded and executed by a processor to enable a computer to implement any of the above methods.

[0034] It should be noted that the beneficial effects achieved by the technical solutions of the second to fourth aspects of the present invention and the corresponding possible implementation methods can be found in the above-mentioned technical effects of the first aspect and its corresponding possible implementation methods, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Other features, objects and advantages of the present invention will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0036] Figure 1 This is a flow chart of a method for synchronously controlling the speed of a tractor electronically controlled synchronizer according to an embodiment of the present invention;

[0037] Figure 2 This is a second flow chart of a method for synchronously controlling the speed of a tractor electronically controlled synchronizer according to an embodiment of the present invention;

[0038] Figure 3 This is a structural framework diagram of an electronic device of the present invention. DETAILED DESCRIPTION

[0039] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0040] like Figure 1 As shown, a method for synchronously controlling the speed of a tractor electronically controlled synchronizer according to an embodiment of the present invention includes the following steps:

[0041] S1, when any tractor to be controlled obtains a synchronizer shift instruction, the main transmission clutch and the auxiliary transmission synchronizer are controlled to operate according to a first preset strategy;

[0042] S2, calculating a target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear;

[0043] S3, when the target synchronizer speed difference meets the preset condition, the tractor to be controlled is controlled by a second preset strategy to complete the gear shifting process.

[0044] The beneficial effects of the tractor electronic synchronizer speed synchronization control method provided by the present invention are as follows:

[0045] The main transmission clutch and auxiliary transmission synchronizer are operated through clear preset strategies to ensure the orderly execution of gear shifting. At the same time, the target synchronizer speed difference is calculated based on the target gear and the current gear, and this is used as the basis to judge whether the preset conditions are met and then adopt corresponding control strategies. This effectively improves the smoothness, reliability and response speed of gear shifting, reduces the impact, setbacks and power interruptions that may occur during gear shifting, helps to improve the operating performance and driving comfort of the tractor, reduce mechanical losses, extend the service life of the equipment, and to a certain extent improve operating efficiency and adapt to the gear shifting needs under different working conditions.

[0046] In S1, the synchronizer shift command is usually issued by the driver by operating the shift lever or shift button in the tractor cab. For example, the driver shifts the shift lever from "3rd gear" to "4th gear" or presses the "upshift" button, which triggers the synchronizer shift command.

[0047] Or in some tractors equipped with automatic shifting function, the shift command may be automatically issued by the vehicle's electronic control unit (ECU) according to the preset shift logic (such as vehicle speed, engine speed, load and other parameters).

[0048] It should be further explained that the synchronizer shift instructions include:

[0049] 1. Target gear: The command clearly specifies the gear to be switched to, for example, switching from "3rd gear" to "4th gear".

[0050] 2. Shift direction: Indicates whether it is upshifting (from low gear to high gear) or downshifting (from high gear to low gear).

[0051] 3. Gear shift speed requirements: In some cases, the instructions may include gear shift speed requirements, such as fast gear shifting or smooth gear shifting.

[0052] To further explain, the main transmission clutch is an important component in the tractor's transmission system, usually located between the engine and the transmission, or in the main transmission part inside the transmission. Its main function is to control the connection and disconnection between the engine power and the transmission.

[0053] The synchronizer is a key component within a transmission that ensures smooth gear shifting. Typically located in the transmission's auxiliary transmission section, it helps the gears achieve consistent speeds during shifting, ensuring smooth gear changes.

[0054] The main transmission clutch and auxiliary transmission synchronizer work together during the gear shifting process to ensure the smoothness and reliability of the entire gear shifting process:

[0055] Before shifting:

[0056] Clutch disengagement: When the driver issues a shift command, the main transmission clutch disengages first, cutting off the connection between the engine power and the transmission. This step is to avoid the shock caused by power transmission during the shift process.

[0057] Synchronizer preparation: At the same time, the auxiliary transmission synchronizer starts working, calculates the target synchronizer speed difference, and makes the speed of the gear to be engaged consistent with the speed of the transmission through friction.

[0058] Shifting gears:

[0059] Synchronizer action: The auxiliary transmission synchronizer continues to work to make the gear speed consistent. At this time, the gears can mesh smoothly and the gear shift is completed.

[0060] Clutch engagement: After the gears are engaged, the main transmission clutch gradually engages to resume power transmission.

[0061] After shifting:

[0062] Clutch fully engaged: The main transmission clutch is fully engaged, the engine power is transferred to the transmission again, and the tractor continues to move.

[0063] Synchronizer reset: The auxiliary transmission synchronizer resets after completing its task and waits for the next gear shift instruction.

[0064] In S2, the process of calculating the target synchronizer speed difference can be:

[0065] Find the corresponding gear ratio based on the target gear. It should be noted that the gear ratio is determined by the transmission design, and each gear has a specific gear ratio. Similarly, find the corresponding gear ratio based on the current gear.

[0066] Get the current engine speed and use the gear ratio of the target gear and the engine speed to calculate the synchronizer speed at the target gear. The formula is:

[0067] Target synchronizer speed = engine speed × target gear ratio

[0068] The synchronizer speed in the current gear is calculated using the gear ratio of the current gear and the engine speed. The formula is:

[0069] Current synchronizer speed = engine speed × current gear ratio

[0070] Calculate the difference between the target synchronizer speed and the current synchronizer speed. The formula is:

[0071] Target synchronizer speed difference = target synchronizer speed - current synchronizer speed.

[0072] Furthermore, the first preset strategy includes: disconnecting the main transmission clutch of the tractor to be controlled, and simultaneously controlling the auxiliary transmission synchronizer of the tractor to be controlled to be in neutral.

[0073] Furthermore, it also includes:

[0074] When the target synchronizer speed difference does not meet the preset conditions, the auxiliary transmission synchronizer is controlled to engage the gear and the main transmission clutch is engaged to complete the gear shift control.

[0075] Furthermore, the preset condition is that the target synchronizer speed difference is within a preset speed difference range.

[0076] Furthermore, the second preset strategy is:

[0077] When the target synchronizer speed difference is greater than the upper limit of the preset speed difference range, the synchronizer active end speed reduction control process is performed;

[0078] When the target synchronizer speed difference is less than the target threshold, the main transmission clutch is controlled to be disconnected, and the auxiliary transmission synchronizer is controlled to be engaged;

[0079] When the target synchronizer speed difference is less than the lower limit of the preset speed difference range, the synchronizer active end speed increase control process is performed.

[0080] Example 1, as Figure 2 As shown, (1) after the driver issues a shift command by operating the shift lever, it is determined whether it is a synchronizer shift, if so, go to step (2), otherwise perform other types of shifts;

[0081] (2) Disconnect the main transmission clutch and go to step (3) after completion;

[0082] (3) The auxiliary transmission synchronizer is put into neutral gear. After completion, go to step (4);

[0083] (4) Calculating the synchronizer speed difference according to the target gear position. If the synchronizer speed difference is within the threshold range allowed for synchronizer engagement, the clutch is disengaged and the process proceeds to step (6); otherwise, the process proceeds to step (5) for clutch slip control.

[0084] (5) Clutch slip control, after completion, go to step (4);

[0085] (6) Engage the auxiliary transmission synchronizer. After completion, go to step (7);

[0086] (7) The main transmission clutch engages, and the gear shift is completed.

[0087] Among them, step (5) is explained as follows:

[0088] If the synchronizer speed difference is greater than the upper limit (threshold 1), the synchronizer active end speed reduction control is performed, that is, the low gear clutch is controlled to slip. When the absolute value of the speed difference is less than the threshold range for allowing synchronizer shifting (threshold 3), all the main transmission clutches are disconnected and the synchronizer is engaged; if the synchronizer speed difference is less than the lower limit (threshold 2), the synchronizer active end speed increase control is performed, that is, the high gear clutch is controlled to slip. When the absolute value of the speed difference is less than the threshold range for allowing synchronizer shifting (threshold 3), all the main transmission clutches are disconnected and the synchronizer is engaged.

[0089] Among them, the experience value of threshold 1 is 100r / min, the experience value of threshold 2 is -100r / min, and the experience value of threshold 3 is 50r / min.

[0090] In the above embodiments, although the steps are numbered S1, S2, etc., these are only specific embodiments given by the present invention. Those skilled in the art may adjust the execution order of S1, S2, etc. according to actual conditions, which is also within the scope of protection of the present invention. It can be understood that in some embodiments, some or all of the above embodiments may be included.

[0091] The present invention also provides a tractor electronic synchronizer speed synchronization control system, the specific technical solution is as follows:

[0092] The first judgment module is used to: when any tractor to be controlled obtains a synchronizer shift instruction, control the main transmission clutch and the auxiliary transmission synchronizer to work according to a first preset strategy;

[0093] The calculation module is used to calculate the target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear;

[0094] The control module is used to: when the target synchronizer speed difference meets the preset condition, control the tractor to be controlled through the second preset strategy to complete the gear shifting process.

[0095] It should be noted that the beneficial effects of the tractor electronic synchronizer speed synchronization control system provided in the above embodiment are the same as the beneficial effects of the tractor electronic synchronizer speed synchronization control method provided in the above embodiment, and will not be repeated here. In addition, when implementing the functions of the system provided in the above embodiment, only the division of the above functional modules is used as an example. In actual applications, the above functions can be assigned to different functional modules as needed, that is, the system can be divided into different functional modules according to actual conditions to complete all or part of the functions described above. In addition, the system and method embodiments provided in the above embodiment are based on the same concept. The specific implementation process is detailed in the method embodiment and will not be repeated here.

[0096] like Figure 3 As shown, an electronic device 300 according to an embodiment of the present invention includes a processor 320, which is coupled to a memory 310. The memory 310 stores at least one computer program 330. The at least one computer program 330 is loaded and executed by the processor 320 to enable the electronic device 300 to implement any of the above methods. Specifically:

[0097] The electronic device 300 may vary significantly due to different configurations or performance, and may include one or more processors 320 (Central Processing Units, CPUs) and one or more memories 310. The one or more memories 310 store at least one computer program 330, which is loaded and executed by the one or more processors 320 to enable the electronic device 300 to implement the method for controlling the speed synchronization of a tractor electronic synchronizer provided in the above-mentioned embodiment. Of course, the electronic device 300 may also include components such as a wired or wireless network interface, a keyboard, and input / output interfaces for input and output. The electronic device 300 may also include other components for implementing device functions, which are not detailed here.

[0098] A computer-readable storage medium according to an embodiment of the present invention stores at least one computer program, and the at least one computer program is loaded and executed by a processor to enable a computer to implement any of the above methods.

[0099] Alternatively, the computer-readable storage medium may be a read-only memory (ROM), a random access memory (RAM), a compact disc (CD-ROM), a magnetic tape, a floppy disk, an optical data storage device, or the like.

[0100] In an exemplary embodiment, a computer program product or computer program is also provided, the computer program product or computer program including computer instructions stored in a computer-readable storage medium. A processor of an electronic device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the electronic device to perform any of the above methods.

[0101] It should be noted that the terms "first" and "second" in the specification and claims of this application are used to distinguish similar objects and represent a specific order or precedence. The order used for similar objects can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than the order shown or described.

[0102] Those skilled in the art will appreciate that the present invention may be implemented as a system, method, or computer program product. Therefore, the present disclosure may be implemented in the following forms: entirely in hardware, entirely in software (including firmware, resident software, microcode, etc.), or in a combination of hardware and software, generally referred to herein as a "circuit," "module," or "system." Furthermore, in some embodiments, the present invention may be implemented in the form of a computer program product embodied in one or more computer-readable media containing computer-readable program code.

[0103] Any combination of one or more computer-readable media may be used. A computer-readable medium may be a computer-readable signal medium or a computer-readable storage medium. A computer-readable storage medium may be, but is not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples (a non-exhaustive list) of computer-readable storage media include: an electrical connection having one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination thereof. In this document, a computer-readable storage medium may be any tangible medium containing or storing a program that can be used by or in conjunction with an instruction execution system, apparatus, or device.

[0104] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A method for synchronously controlling the speed of a tractor electronically controlled synchronizer, characterized in that: include: When any tractor to be controlled obtains a synchronizer shift instruction, the main transmission clutch and the auxiliary transmission synchronizer are controlled to work according to a first preset strategy; Calculating a target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear; When the target synchronizer speed difference meets a preset condition, the tractor to be controlled is controlled by a second preset strategy to complete the gear shifting process.

2. The method for controlling the speed synchronization of a tractor electronic synchronizer according to claim 1, characterized in that: The first preset strategy includes: disconnecting the main transmission clutch of the tractor to be controlled, and simultaneously controlling the auxiliary transmission synchronizer of the tractor to be controlled to be in neutral.

3. The method for controlling the speed synchronization of a tractor electronic synchronizer according to claim 1, characterized in that: Also includes: When the target synchronizer speed difference does not meet the preset condition, the auxiliary transmission synchronizer is controlled to engage the gear and the main transmission clutch is engaged to complete the gear shift control.

4. The method for controlling the speed synchronization of a tractor electronic synchronizer according to claim 3, characterized in that: The preset condition is that the target synchronizer speed difference is within a preset speed difference range.

5. The method for controlling the speed synchronization of a tractor electronic synchronizer according to claim 4, characterized in that: The second preset strategy is: When the target synchronizer speed difference is greater than the upper limit of the preset speed difference range, performing a speed reduction control process on the synchronizer active end; When the target synchronizer speed difference is less than the target threshold, the main transmission clutch is controlled to be disconnected, and the auxiliary transmission synchronizer is controlled to be engaged; When the target synchronizer speed difference is less than the lower limit of the preset speed difference range, the synchronizer active end speed increase control process is performed.

6. A tractor electronic synchronizer speed synchronization control system, characterized in that: include: The first judgment module is used to: when any tractor to be controlled obtains a synchronizer shift instruction, control the main transmission clutch and the auxiliary transmission synchronizer to work according to a first preset strategy; The calculation module is used to calculate the target synchronizer speed difference based on the target gear in the synchronizer shift instruction and the current synchronizer gear; The control module is used for controlling the tractor to be controlled by a second preset strategy to complete the gear shifting process when the target synchronizer speed difference meets a preset condition.

7. The tractor electronic synchronizer speed synchronization control system according to claim 6, characterized in that: The first preset strategy includes: disconnecting the main transmission clutch of the tractor to be controlled, and simultaneously controlling the auxiliary transmission synchronizer of the tractor to be controlled to be in neutral.

8. The tractor electronic synchronizer speed synchronization control system according to claim 6, characterized in that: Also includes: The second judgment module is used for: when the target synchronizer speed difference does not meet the preset condition, controlling the auxiliary transmission synchronizer to engage the gear and engaging the main transmission clutch to complete the gear shift control.

9. An electronic device, characterized in that: The electronic device includes a processor coupled to a memory, wherein the memory stores at least one computer program, and the at least one computer program is loaded and executed by the processor so that the electronic device implements the method according to any one of claims 1 to 5.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores at least one computer program, which is loaded and executed by a processor to enable a computer to implement the method according to any one of claims 1 to 5.

Images