Axle load transfer control method and device, equipment, medium and computer program product

Abstract

The invention provides an axle load transfer control method, device and equipment, a medium and a computer program product, and the method comprises the steps: executing the axle load transfer operation of a follow-up shaft to a driving shaft under the condition that an axle load transfer instruction is received; in the process of the axle load transfer operation, axle load change data of the driving shaft are obtained; under the condition that a transfer exit instruction is received, stopping executing the axle load transfer operation; the transfer exit instruction is generated based on the axle load change data. And an axle load transfer instruction is generated according to the driving working condition, then axle load transfer operation of the follow-up axial driving shaft is executed, in the axle load transfer operation process, a transfer exit instruction is generated according to the axle load change data of the driving shaft, and axle load transfer of the follow-up axial driving shaft is completed. The traction force of the driving shaft is optimized through shaft load transfer so as to ensure that the driving shaft obtains enough traction force, the driving wheel is prevented from slipping or losing traction force, and the problem that the traction force of the driving shaft is insufficient is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle suspension configuration, and in particular to an axle load transfer control method, device, equipment, medium and computer program product. Background Art

[0002] During vehicle transportation, various driving conditions place high demands on the vehicle's suspension system, and vehicles without air suspension have insufficient traction under heavy load conditions. In the commercial vehicle field, the main models include 6*2 models (a total of 6 wheel positions, 2 of which are single-drive axle drive wheels) and 6*4 models (a total of 6 wheel positions, 4 of which are dual-drive axle drive wheels). Among them, it is not very meaningful to add lifting axle function and axle load transfer function to 6*4 models, while the existing practice of adding lifting axle function to 6*2 models is to configure lifting airbags and pressure sensors and other air circuits for the follower axle. In heavy load scenarios, the use of the lifting axle function is limited, resulting in insufficient traction. Summary of the invention

[0003] The present invention provides an axle load transfer control method, device, equipment, medium and computer program product, which are used to solve the problem of insufficient traction in the existing vehicle axle load transfer scheme.

[0004] The present invention provides an axle load transfer control method, which is applied to a controller in an axle load transfer control system; the axle load transfer control system also includes a follower shaft and a drive shaft; the method includes: When receiving an axle load transfer instruction, performing an axle load transfer operation from the follower shaft to the driving shaft; During the axle load transfer operation, obtaining axle load change data of the drive shaft; When a transfer exit instruction is received, the axle load transfer operation is stopped; the transfer exit instruction is generated based on the axle load change data.

[0005] According to an axle load transfer control method provided by the present invention, when an axle load transfer instruction is received, the axle load transfer operation of the follower shaft to the driving shaft is performed, which includes: Obtain the vehicle speed, driving shaft load and trailing shaft air pressure of the target vehicle; Determining a first determination result of whether an axle load transfer request is received, and a second determination result of whether an axle load transfer instruction is received; Determining an axle load transfer condition based on the vehicle speed, the drive shaft load, the follower shaft air pressure, the first judgment result, and the second judgment result; An axle load transfer instruction is generated based on the axle load transfer condition, or an axle load transfer instruction is generated based on the operating environment of the target vehicle.

[0006] According to an axle load transfer control method provided by the present invention, the axle load transfer control method further includes: The follower unit includes the follower shaft, the first supporting airbag, the first pressure sensor and the single-point electromagnetic valve; the driving unit includes the driving shaft, the second supporting airbag, the second pressure sensor, the height sensor and the double-point electromagnetic valve; The first pressure sensor is used to detect the first air pressure of the first support airbag; the single-point solenoid valve is used to inflate and deflate the first support airbag; The second pressure sensor is used to detect the second air pressure of the second support airbag; the height sensor is used to detect the height value; the dual-point solenoid valve is used to inflate and deflate the second support airbag; Based on the second air pressure and the height value, an axle load of the drive shaft is determined.

[0007] According to an axle load transfer control method provided by the present invention, when an axle load transfer instruction is received, executing the axle load transfer operation from the follower shaft to the driving shaft includes: When an axle load transfer instruction is received, an axle load transfer operation of the follower shaft to the driving shaft is performed; the axle load transfer operation includes a deflation operation on the first support airbag and an inflation operation on the second support airbag.

[0008] According to an axle load transfer control method provided by the present invention, the axle load transfer control method further includes: During the axle load transfer operation, acquiring axle load change data of the driving axle, air pressure change data of the follower axle, and height change data of the height sensor; A transfer exit instruction is generated based on the axle load change data, the air pressure change data and the altitude change data.

[0009] According to an axle load transfer control method provided by the present invention, generating a transfer exit instruction based on the axle load change data, the air pressure change data and the height change data comprises: When the air pressure change data is greater than the target air pressure, the axle load change data is greater than or equal to the target axle load, and the height change data is less than the height threshold, a transfer exit instruction is generated; When the air pressure change data is less than or equal to the target air pressure and the altitude change data is greater than or equal to the altitude threshold, the second support airbag is deflated until the altitude change data is within the target altitude range, and a transfer exit instruction is generated.

[0010] The present invention also provides an axle load transfer control device, comprising the following modules: An axle load transfer operation execution module is used to execute the axle load transfer operation of the follower axial drive shaft when receiving an axle load transfer instruction; an axle load change data acquisition module, used for acquiring the axle load change data of the drive shaft during the axle load transfer operation; The axle load transfer operation stopping module is used to stop executing the axle load transfer operation when receiving a transfer exit instruction; the transfer exit instruction is generated based on the axle load change data.

[0011] The present invention also provides an electronic device, comprising a memory, a processor, and a computer program stored in the memory and running on the processor, wherein when the processor executes the computer program, any of the above-mentioned axle load transfer control methods is implemented.

[0012] The present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the axle load transfer control method as described in any one of the above is implemented.

[0013] The present invention also provides a computer program product, comprising a computer program, wherein when the computer program is executed by a processor, the axle load transfer control method as described above is implemented.

[0014] The present invention provides an axle load transfer control method, device, equipment, medium and computer program product, which generates an axle load transfer instruction according to the driving condition, and then performs the axle load transfer operation of the follower shaft to the drive shaft. During the axle load transfer operation, a transfer exit instruction is generated according to the axle load change data of the drive shaft to complete the axle load transfer of the follower shaft to the drive shaft. The traction of the drive shaft is optimized by axle load transfer to ensure that the drive shaft obtains sufficient traction, avoids the drive wheel from slipping or losing traction, and solves the problem of insufficient traction of the drive shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 It is one of the flow charts of the axle load transfer control method provided by the present invention.

[0017] Figure 2 This is the second flow chart of the axle load transfer control method provided by the present invention.

[0018] Figure 3It is a schematic diagram of the architecture of the axle load transfer control system provided by the present invention.

[0019] Figure 4 It is a schematic diagram of the execution control process of the axle load transfer control method provided by the present invention.

[0020] Figure 5 It is a schematic diagram of the exit control process of the axle load transfer control method provided by the present invention.

[0021] Figure 6 It is a structural schematic diagram of the axle load transfer control device provided by the present invention.

[0022] Figure 7 It is a structural schematic diagram of the electronic device provided by the present invention. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Combine the following Figure 1-Figure 7 The invention describes an axle load transfer control method, device, apparatus, medium and computer program product.

[0025] Figure 1 is one of the flow charts of the axle load transfer control method provided by the present invention, such as Figure 1 As shown, the method includes the following: Step 100: upon receiving an axle load transfer instruction, executing an axle load transfer operation from the follower shaft to the driving shaft; Specifically, the axle load transfer control method provided by the present invention starts with the controller receiving an axle load transfer instruction. The axle load transfer instruction can be generated based on a manual switch request made by the driver of the target vehicle; or it can be actively generated when it is recognized that the target vehicle is starting or climbing a slope with load, and the axle load transfer instruction is sent to the controller. When the controller receives the axle load transfer instruction, the axle load transfer operation of the follower axial drive shaft is executed.

[0026] Step 200, during the axle load transfer operation, obtaining axle load change data of the drive shaft; Specifically, in the process of transferring the axle load from the follower shaft to the drive shaft, the axle load change data of the drive shaft is obtained in real time, and when the axle load change data meets certain requirements, an exit instruction for the axle load transfer is automatically generated. It can be seen that in the process of transferring the axle load from the follower shaft to the drive shaft, other change data can also be obtained. Similar to the axle load change data, other change data can also be used to generate the axle load transfer exit instruction. This embodiment is explained by taking the axle load change data as an example.

[0027] Step 300: When a transfer exit instruction is received, stop executing the axle load transfer operation; the transfer exit instruction is generated based on the axle load change data.

[0028] Specifically, when the axle load change data meets the requirements, an axle load transfer exit instruction is automatically generated. When the controller receives the axle load transfer exit instruction, it stops the operation of transferring the axle load from the follower shaft to the drive shaft and completes the axle load transfer of the follower shaft drive shaft. The traction of the drive shaft is optimized through axle load transfer to ensure that the drive shaft obtains sufficient traction and avoids the drive wheel from slipping or losing traction.

[0029] The axle load transfer control method provided in this embodiment generates an axle load transfer instruction according to the driving condition, and then performs the axle load transfer operation of the follower axial drive shaft. During the axle load transfer operation, a transfer exit instruction is generated according to the axle load change data of the drive shaft to complete the axle load transfer of the follower axial drive shaft. The traction of the drive shaft is optimized by axle load transfer to ensure that the drive shaft obtains sufficient traction, avoids the drive wheel from slipping or losing traction, and solves the problem of insufficient traction of the drive shaft.

[0030] Figure 2 FIG. 2 is a flow chart of the axle load transfer control method provided by the present invention. Figure 2 As shown, the method may also include: Step 10, obtaining the vehicle speed, driving shaft load and follower shaft air pressure of the target vehicle; Step 20: determining whether a first determination result of an axle load transfer request is received, and whether a second determination result of an axle load transfer instruction is received; Step 30, determining an axle load transfer condition based on the vehicle speed, the drive shaft load, the follower shaft air pressure, the first judgment result and the second judgment result; Step 40: Generate an axle load transfer instruction based on the axle load transfer condition, or generate an axle load transfer instruction based on the operating environment of the target vehicle.

[0031] Specifically, the axle load transfer conditions of the axle load transfer control method provided by the present invention include the following contents: 1. The current speed of the target vehicle Less than the speed threshold ; 2. Current load of the drive shaft Less than the load threshold ; 3. Current air pressure of the follower axis Greater than the pressure threshold ; 4. The target vehicle is not currently in axle load transfer mode; 5. The controller receives an axle load transfer command.

[0032] The axle load transfer command can be generated based on the driver's manual switch request, or it can be automatically generated by identifying the scenario of the target vehicle starting or climbing a slope with load.

[0033] This embodiment provides axle load transfer start control logic by setting and judging axle load transfer conditions.

[0034] In one embodiment, the axle load transfer control method provided by the embodiment of the present invention may further include: The follower unit includes the follower shaft, the first supporting airbag, the first pressure sensor and the single-point electromagnetic valve; the driving unit includes the driving shaft, the second supporting airbag, the second pressure sensor, the height sensor and the double-point electromagnetic valve; The first pressure sensor is used to detect the first air pressure of the first support airbag; the single-point solenoid valve is used to inflate and deflate the first support airbag; The second pressure sensor is used to detect the second air pressure of the second support airbag; the height sensor is used to detect the height value; the dual-point solenoid valve is used to inflate and deflate the second support airbag; Step 50: Determine the axle load of the drive shaft based on the second air pressure and the height value.

[0035] Specifically, Figure 2 As shown, Figure 2 The solid line in the middle represents the air path; the dotted line represents the hard line control; the dotted line represents the controller area network (CAN) communication. The follower unit of the axle load transfer control system provided by the present invention includes a follower bridge (follower shaft) 12, four first support airbags 10, a first pressure sensor 9 and a single-point solenoid valve 13. The passages of the four support airbags are inflated and deflated by the single-point solenoid valve. Since the air paths of the four first support airbags are interconnected, the actual pressure value fed back by the first pressure sensor is the actual pressure of the four first support airbags.

[0036] The drive unit of the axle load transfer control system provided by the present invention includes a drive shaft 8, a second support airbag (including two support airbags 11 and two support airbags 2), a second pressure sensor (including pressure sensors 6 and 7), a height sensor (including height sensors 3 and 4) and a double-point solenoid valve 1. The second support airbag is inflated and deflated by the double-point solenoid valve. When the heights of the two sides of the second support airbag are inconsistent due to loading of goods, the height can be adjusted by inflating and deflation on one side.

[0037] The axle load transfer control system provided by the present invention also includes an air reservoir 5 and a controller 17. The air reservoir is used to supply air to the first support airbag and the second support airbag. The sensor feeds back the height signal and the pressure signal to the controller, and the controller performs logical operations and judgments, thereby controlling the solenoid valve to inflate and deflate the airbag. The axle load of the drive shaft is determined by the second air pressure of the second support airbag and the height signal of the height sensor.

[0038] The axle load transfer control system constructed in this embodiment provides a follower shaft without a lifting airbag to achieve axle load transfer from the follower shaft to the driving shaft. The suspension (axle load transfer control system) provided in this application has a simple layout and strong system stability.

[0039] In one embodiment, the axle load transfer control method provided by the embodiment of the present invention may further include: Step 110: upon receiving an axle load transfer instruction, executing an axle load transfer operation from the follower shaft to the driving shaft; the axle load transfer operation includes deflating the first support airbag and inflating the second support airbag.

[0040] Specifically, when the above-mentioned axle load transfer conditions are met, the axle load transfer is started. During the axle load transfer process, feedback from the height sensor and pressure sensor in the axle load transfer control system is received. The load is obtained by looking up the actual air pressure value (feedback from the pressure sensor) and the actual height value (feedback from the height sensor). The process of axle load transfer includes the deflation operation of the follower axle airbag and the inflation operation of the drive axle airbag.

[0041] In this embodiment, the follower shaft airbag and the driving shaft airbag are inflated and deflated to achieve the shaft load transfer from the follower shaft to the driving shaft.

[0042] In one embodiment, the axle load transfer control method provided by the embodiment of the present invention may further include: Step 400, during the axle load transfer operation, obtaining axle load change data of the driving axle, air pressure change data of the follower axle, and height change data of the height sensor; Step 500: Generate a transfer exit instruction based on the axle load change data, the air pressure change data and the altitude change data.

[0043] Specifically, Figure 4 As shown, during the axle load transfer process, the following steps are performed.

[0044] Step 1: The height at which the axle load transfer begins is recorded as the target height , when the actual height Difference from target height ( ) is greater than or equal to the set threshold When (i.e. ), stop inflating the drive shaft airbag (i.e. the second support airbag) and continue to deflate the follower shaft airbag (i.e. the first support airbag) to ensure that the height change during this process is within the acceptable range to ensure suspension stability. , then keep the follower shaft airbag deflation operation and the drive shaft airbag inflation operation, and then go to step 2.

[0045] Step 2: When the axle load of the drive shaft Achieve the set target axle load When (i.e. ), stop the follower shaft support airbag deflation and the drive shaft airbag inflation, and determine the difference between the actual height and the initial height. When the airbag of the follower shaft is deflated, the actual height reaches the allowable range of the target height (i.e. ), if the air pressure of the follower shaft airbag is lower than the set target pressure during the process, the follower shaft airbag deflation will be stopped and the axle load transfer will end; when When the suspension height is raised, the load on the rear of the vehicle will increase, so no operation is performed and the axle load transfer ends.

[0046] Step 3: When the follower shaft airbag pressure Less than or equal to the set target pressure When (i.e. ), stop the follower shaft support airbag deflation and the drive shaft airbag inflation, and determine the difference between the actual height and the initial height. When the drive shaft airbag is deflated, the actual height reaches the target height allowable range (i.e. ), the axle load transfer ends; when When the drive shaft airbag is inflated, the actual height reaches the target height allowable range (i.e. ), during the process, if the drive shaft load Achieve the set target axle load , the drive shaft airbag inflation is stopped and the axle load transfer ends.

[0047] In the axle load transfer process of steps 1 to 3 above, closed-loop air pressure control is first performed. Achieve the set target axle load , or follower shaft airbag pressure Less than the set target pressure When the height is close-loop controlled, the difference between the actual height and the target height is determined. , the actual height needs to be controlled to be within the allowable error range of the target height. The process adopts proportional-integral-derivative controller (PID) closed-loop control. Regardless of pressure control or height control, the PID algorithm is used to calculate the duty cycle based on the pressure difference and height difference to control the solenoid valve for charging and discharging.

[0048] This embodiment improves the accuracy of axle load transfer control by making logical judgments on various data during the axle load transfer process.

[0049] In one embodiment, the axle load transfer control method provided by the embodiment of the present invention may further include: Step 510: When the air pressure change data is greater than the target air pressure, the axle load change data is greater than or equal to the target axle load, and the height change data is less than the height threshold, generate a transfer exit instruction; Step 520: When the air pressure change data is less than or equal to the target air pressure and the altitude change data is greater than or equal to the altitude threshold, the second support airbag is deflated until the altitude change data is within the target altitude range, and a transfer exit instruction is generated.

[0050] Specifically, Figure 5 As shown in the figure, when the controller receives the command signal to exit the axle load transfer, the driving axle airbag is deflated and the follower axle airbag is inflated. During the process, the air pressure ratio of the two axes is adjusted to the set ratio and the actual height is maintained within the allowable range of the target height. The transfer exit process performs the following steps.

[0051] Step 1: When you start to exit, record the current altitude as , the driving shaft is deflated, the follower shaft is inflated, and the actual height is The difference is ( ),when When the driving shaft does not move, the follower shaft continues to inflate; only when When the air is released from the driving shaft, the driving shaft continues to be deflated and the following shaft continues to be inflated.

[0052] Step 2: During the process of deflating the driving shaft and inflating the follower shaft, the pressure ratio of the driving shaft and the follower shaft is determined in real time. When the pressure difference between the two is a:b, the condition shown in Formula 1 needs to be met.

[0053] ; (1) in, is the actual air pressure of the drive shaft, ; is the pressure on the right side of the drive shaft; is the pressure on the left side of the drive shaft; is the actual air pressure of the follower shaft, is the permissible pressure threshold. When the conditions of formula 1 are met, the pressure ratio is determined.

[0054] Step 3: Perform height control. When the airbags of the driving shaft and the follower shaft are deflated, the actual height reaches the allowable range of the target height (i.e. ), the control ends; when When the airbags of the driving shaft and the follower shaft are inflated, the actual height reaches the allowable range of the target height ( ), the control ends; when When , the control ends.

[0055] Consistent with the process of entering axle load transfer control, pressure and height PID closed-loop control is adopted at the same time. The duty cycle of the solenoid valve is calculated according to the pressure difference and height difference, thereby realizing the inflation and deflation of the airbag.

[0056] This embodiment improves the accuracy of axle load transfer control by making logical judgments on various data during the axle load transfer exit process.

[0057] The axle load transfer control device provided by the present invention is described below. The axle load transfer control device described below and the axle load transfer control method described above can be referred to each other.

[0058] Please refer to Figure 6 The present invention also provides an axle load transfer control device, comprising: The axle load transfer operation execution module 501 is used to execute the axle load transfer operation of the follower axial drive shaft when receiving the axle load transfer instruction; An axle load change data acquisition module 502 is used to acquire the axle load change data of the drive shaft during the axle load transfer operation; The axle load transfer operation stopping module 503 is used to stop executing the axle load transfer operation when receiving a transfer exit instruction; the transfer exit instruction is generated based on the axle load change data.

[0059] Optionally, the axle load transfer control device further includes: An acquisition module, used to acquire the vehicle speed, driving shaft load and follower shaft air pressure of the target vehicle; A judgment result determination module, used to determine whether a first judgment result of an axle load transfer request is received, and a second judgment result of whether an axle load transfer instruction is received; an axle load transfer condition determination module, configured to determine an axle load transfer condition based on the vehicle speed, the drive shaft load, the follower shaft air pressure, the first judgment result, and the second judgment result; The axle load transfer instruction generating module is used to generate an axle load transfer instruction based on the axle load transfer condition, or to generate an axle load transfer instruction based on the operating environment of the target vehicle.

[0060] Optionally, the axle load transfer control device further includes: The follower unit includes the follower shaft, the first supporting airbag, the first pressure sensor and the single-point electromagnetic valve; the driving unit includes the driving shaft, the second supporting airbag, the second pressure sensor, the height sensor and the double-point electromagnetic valve; The first pressure sensor is used to detect the first air pressure of the first support airbag; the single-point solenoid valve is used to inflate and deflate the first support airbag; The second pressure sensor is used to detect the second air pressure of the second support airbag; the height sensor is used to detect the height value; the dual-point solenoid valve is used to inflate and deflate the second support airbag; A drive shaft load determination module is used to determine the drive shaft load based on the second air pressure and the height value.

[0061] Optionally, the axle load transfer operation execution module includes: An axle load transfer operation execution unit is used to execute the axle load transfer operation of the follower shaft to the driving shaft when an axle load transfer instruction is received; the axle load transfer operation includes deflating the first support airbag and inflating the second support airbag.

[0062] Optionally, the axle load transfer control device further includes: a change data acquisition module, used to acquire the axle load change data of the driving shaft, the air pressure change data of the follower shaft, and the height change data of the height sensor during the axle load transfer operation; A transfer exit instruction generation module is used to generate a transfer exit instruction based on the axle load change data, the air pressure change data and the altitude change data.

[0063] Optionally, the transfer exit instruction generation module includes: A first transfer exit instruction generating unit, configured to generate a transfer exit instruction when the air pressure change data is greater than a target air pressure, the axle load change data is greater than or equal to a target axle load, and the height change data is less than a height threshold; The second transfer exit instruction generating unit is used to, when the air pressure change data is less than or equal to the target air pressure and the height change data is greater than or equal to the height threshold, deflate the second support airbag until the height change data is within the target height range, and generate a transfer exit instruction.

[0064] Figure 7 An example of a physical structure diagram of an electronic device is shown in FIG. Figure 7 As shown, the electronic device may include: a processor 610, a communication interface 620, a memory 630 and a communication bus 640, wherein the processor 610, the communication interface 620 and the memory 630 communicate with each other through the communication bus 640. The processor 610 may call the logic instructions in the memory 630 to execute the axle load transfer control method, which includes: upon receiving an axle load transfer instruction, executing an axle load transfer operation of the follower shaft to the drive shaft; during the axle load transfer operation, acquiring the axle load change data of the drive shaft; upon receiving a transfer exit instruction, stopping the execution of the axle load transfer operation; the transfer exit instruction is generated based on the axle load change data.

[0065] In addition, the logic instructions in the above-mentioned memory 630 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when it is sold or used as an independent product. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, and the computer software product is stored in a storage medium, including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk, etc. Various media that can store program codes.

[0066] On the other hand, the present invention also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the axle load transfer control method provided by the above-mentioned methods, which includes: upon receiving an axle load transfer instruction, executing the axle load transfer operation of the follower shaft to the driving shaft; during the axle load transfer operation, obtaining the axle load change data of the driving shaft; upon receiving a transfer exit instruction, stopping the execution of the axle load transfer operation; the transfer exit instruction is generated based on the axle load change data.

[0067] On the other hand, the present invention also provides a non-transitory computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, it is implemented to execute the axle load transfer control method provided by the above-mentioned methods, the method comprising: upon receiving an axle load transfer instruction, executing an axle load transfer operation of the follower shaft to the driving shaft; during the axle load transfer operation, obtaining the axle load change data of the driving shaft; upon receiving a transfer exit instruction, stopping the execution of the axle load transfer operation; the transfer exit instruction is generated based on the axle load change data.

[0068] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0069] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the prior art can be embodied in the form of a software product, and the computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiments.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for controlling axle load transfer, characterized in that: A controller used in an axle load transfer control system; the axle load transfer control system also includes a follower shaft and a drive shaft; the method includes: When receiving an axle load transfer instruction, performing an axle load transfer operation from the follower shaft to the driving shaft; During the axle load transfer operation, obtaining axle load change data of the drive shaft; When a transfer exit instruction is received, the axle load transfer operation is stopped; the transfer exit instruction is generated based on the axle load change data.

2. The axle load transfer control method according to claim 1, characterized in that: The step of performing the axle load transfer operation from the follower shaft to the drive shaft upon receiving the axle load transfer instruction comprises: Obtain the vehicle speed, driving shaft load and trailing shaft air pressure of the target vehicle; Determining a first determination result of whether an axle load transfer request is received, and a second determination result of whether an axle load transfer instruction is received; Determining an axle load transfer condition based on the vehicle speed, the drive shaft load, the follower shaft air pressure, the first judgment result, and the second judgment result; An axle load transfer instruction is generated based on the axle load transfer condition, or an axle load transfer instruction is generated based on the operating environment of the target vehicle.

3. The axle load transfer control method according to claim 1, characterized in that: The axle load transfer control method further includes: The follower unit includes the follower shaft, the first supporting airbag, the first pressure sensor and the single-point electromagnetic valve; the driving unit includes the driving shaft, the second supporting airbag, the second pressure sensor, the height sensor and the double-point electromagnetic valve; The first pressure sensor is used to detect the first air pressure of the first support airbag; the single-point solenoid valve is used to inflate and deflate the first support airbag; The second pressure sensor is used to detect the second air pressure of the second support airbag; the height sensor is used to detect the height value; the dual-point solenoid valve is used to inflate and deflate the second support airbag; Based on the second air pressure and the height value, an axle load of the drive shaft is determined.

4. The axle load transfer control method according to claim 3, characterized in that: When receiving the axle load transfer instruction, executing the axle load transfer operation from the follower shaft to the driving shaft includes: When an axle load transfer instruction is received, an axle load transfer operation of the follower shaft to the driving shaft is performed; the axle load transfer operation includes a deflation operation on the first support airbag and an inflation operation on the second support airbag.

5. The axle load transfer control method according to claim 3, characterized in that: The axle load transfer control method further includes: During the axle load transfer operation, acquiring axle load change data of the driving axle, air pressure change data of the follower axle, and height change data of the height sensor; A transfer exit instruction is generated based on the axle load change data, the air pressure change data and the altitude change data.

6. The axle load transfer control method according to claim 5, characterized in that: The generating the transfer exit instruction based on the axle load change data, the air pressure change data and the altitude change data comprises: When the air pressure change data is greater than the target air pressure, the axle load change data is greater than or equal to the target axle load, and the height change data is less than the height threshold, a transfer exit instruction is generated; When the air pressure change data is less than or equal to the target air pressure and the altitude change data is greater than or equal to the altitude threshold, the second support airbag is deflated until the altitude change data is within the target altitude range, and a transfer exit instruction is generated.

7. An axle load transfer control device, characterized in that: include: An axle load transfer operation execution module is used to execute the axle load transfer operation of the follower axial drive shaft when receiving an axle load transfer instruction; an axle load change data acquisition module, used for acquiring the axle load change data of the drive shaft during the axle load transfer operation; The axle load transfer operation stopping module is used to stop executing the axle load transfer operation when receiving a transfer exit instruction; the transfer exit instruction is generated based on the axle load change data.

8. An electronic device comprising a memory, a processor, and a computer program stored in the memory and running on the processor, characterized in that: When the processor executes the computer program, the axle load transfer control method according to any one of claims 1 to 6 is implemented.

9. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the axle load transfer control method according to any one of claims 1 to 6 is implemented.

10. A computer program product, comprising a computer program, characterized in that When the computer program is executed by a processor, the axle load transfer control method according to any one of claims 1 to 6 is implemented.

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