Control method for preventing overtemperature of post-processing wiring harness of extended-range loader and related equipment

Abstract

The invention belongs to the technical field of extended-range loaders. According to the control method and the related equipment for preventing the overtemperature of the post-processing wiring harness of the range extending loader, whether the carbon loading capacity has a checking requirement or not is judged according to the number of regeneration times, when the checking requirement does not exist, a regenerated carbon loading capacity threshold value is increased to avoid the overtemperature of the post-processing wiring harness, and when the carbon loading capacity checking requirement exists, a fan rotating speed threshold value is increased to avoid the overtemperature of the post-processing wiring harness. And the exit regeneration carbon load threshold value is not increased, so that the purpose of avoiding the overtemperature of the post-processing wiring harness is achieved, and meanwhile, the model carbon load is checked. The problems that errors become large due to the fact that the regenerated carbon loading capacity is increased and oil consumption is high due to the fact that the rotating speed of the fan is increased are solved, and the overtemperature control precision of the post-processing wiring harness of the range extending loader is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of extended-range loaders, and in particular to a control method and related equipment for preventing overheating of a post-processing harness of an extended-range loader. Background Art

[0002] The statements in this section merely provide background art related to the present invention and do not necessarily constitute prior art.

[0003] As a high-efficiency, low-emission engineering machinery, the extended-range loader has been widely used in various construction and material handling operations. Equipped with a range extender, the extended-range loader can effectively reduce fuel consumption and emission pollution while ensuring power output. However, in the actual use of the extended-range loader, especially after performing high-intensity and long-term operations, the engine and its post-treatment system will accumulate a certain amount of particulate matter and harmful substances, which not only affects the performance of the engine, but may also cause emissions to exceed the standard and fail to meet environmental protection requirements.

[0004] In order to deal with the above problems, extended-range loaders usually use high-temperature regeneration technology to remove particulate matter in the engine after-treatment system. This technology increases the exhaust temperature of the engine to burn the carbon particles deposited on the after-treatment devices such as the particulate filter (DPF, Diesel Particulate Filter), thereby achieving the purpose of regeneration. The high-temperature regeneration process is of great significance for restoring engine performance and maintaining emission standards.

[0005] However, during the high-temperature regeneration process of the extended-range loader engine, the exhaust temperature rises sharply, and the after-processing harness is directly exposed to the high-temperature environment. Due to the compact internal space of the loader, the harness layout is limited and the heat dissipation conditions are poor, which can easily cause the harness temperature to rise rapidly and exceed the design limit.

[0006] Currently, there are two common solutions to control the problem of overheating of the after-treatment harness: (1) By increasing the carbon load threshold for exiting regeneration, the regeneration time is shortened to prevent the after-treatment harness from overheating. However, increasing the carbon load for exiting regeneration will make it impossible to verify the carbon load calculated by the model, resulting in a larger error. (2) By increasing the fan speed, the cooling capacity is improved to prevent the after-treatment harness from overheating. However, increasing the fan speed will result in high fuel consumption. Summary of the invention

[0007] In order to address the deficiencies in the prior art, the present invention provides a control method and related equipment for preventing the overheating of the post-processing harness of an extended-range loader. The method determines whether there is a need for calibration of the carbon load by the number of regenerations. When there is no need for calibration, the overheating of the post-processing harness is avoided by increasing the threshold for exiting regeneration carbon load. When there is a need for carbon load calibration, the fan speed threshold is increased, and the carbon load threshold for exiting regeneration is not increased. This achieves the purpose of avoiding overheating of the post-processing harness while realizing the calibration of the model carbon load, thereby improving the over-temperature control accuracy of the post-processing harness of the extended-range loader.

[0008] In order to achieve the above object, the present invention adopts the following technical solution: In a first aspect, the present invention provides a control method for preventing overheating of a post-processing harness of an extended-range loader.

[0009] A control method for preventing overheating of a post-processing harness of an extended-range loader includes the following processes: Get the basic exit carbon load, basic fan speed and current carbon load; When the current carbon load is greater than a set threshold, entering a regeneration mode; When the number of regenerations is greater than the set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0010] As a further limitation of the first aspect of the present invention, the fan speed is controlled based on the current carbon loading and the post-processing temperature, including: When the number of regenerations is greater than a set threshold, it is determined whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; When the current carbon load is less than or equal to the basic exit carbon load, determine whether the post-processing temperature reaches the set maximum temperature. If so, do not change the basic exit carbon load, and increase the fan speed from the basic fan speed to the wind speed threshold. If not, maintain the basic fan speed unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature.

[0011] As a further limitation of the first aspect of the present invention, when the basic exit carbon loading is reached, the after-treatment harness overtemperature occurs; when the basic fan speed is reached, the after-treatment harness overtemperature occurs.

[0012] As a further limitation of the first aspect of the present invention, the process of obtaining the exit regeneration carbon load threshold includes: without changing the basic fan speed, increasing the exit regeneration carbon load, and obtaining the exit regeneration carbon load threshold that prevents the post-processing harness from overheating.

[0013] As a further limitation of the first aspect of the present invention, the process of obtaining the fan speed threshold includes: without changing the basic exit carbon load for exiting regeneration, increasing the fan speed when the regeneration process reaches the maximum regeneration temperature, and obtaining the fan speed threshold that prevents the post-processing harness from overheating.

[0014] In a second aspect, the present invention provides a control system for preventing overheating of a post-processing harness of an extended-range loader.

[0015] A control system for preventing overheating of a post-processing harness of an extended-range loader, comprising: A data acquisition unit is configured to: acquire a basic exit carbon load, a basic fan speed, and a current carbon load; The regeneration judgment unit is configured to: enter a regeneration mode when the current carbon load is greater than a set threshold; The control unit is configured as follows: when the number of regenerations is greater than a set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and the post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0016] As a further limitation of the second aspect of the present invention, in the control unit, the fan speed is controlled based on the current carbon loading and the post-processing temperature, including: When the number of regenerations is greater than a set threshold, it is determined whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; When the current carbon load is less than or equal to the basic exit carbon load, determine whether the post-processing temperature reaches the set maximum temperature. If so, do not change the basic exit carbon load, and increase the fan speed from the basic fan speed to the wind speed threshold. If not, maintain the basic fan speed unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature.

[0017] In a third aspect, the present invention provides a computer device, comprising: a processor and a computer-readable storage medium; The processor is adapted to execute a computer program; The computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the control method for preventing overheating of the post-processing harness of the extended-range loader as described in the first aspect of the present invention is implemented.

[0018] In a fourth aspect, the present invention provides a computer-readable storage medium storing a computer program, wherein the computer program is suitable for being loaded by a processor and executing a control method for preventing overheating of a post-processing harness of an extended-range loader as described in the first aspect of the present invention.

[0019] In a fifth aspect, the present invention provides an extended-range loader, comprising: a processor, wherein the processor is configured to execute the control method for preventing overheating of a post-processing harness of the extended-range loader as described in the first aspect of the present invention.

[0020] Compared with the prior art, the present invention has the following beneficial effects: 1. The present invention innovatively proposes a control strategy to prevent the overheating of the after-processing harness of the extended-range loader. It determines whether there is a need to calibrate the carbon load by the number of regenerations. When there is no need to calibrate the carbon load, the threshold for exiting regeneration is increased to avoid overheating of the after-processing harness. When there is a need to calibrate the carbon load, the fan speed threshold is increased, and the threshold for exiting regeneration is not increased. While achieving the purpose of avoiding overheating of the after-processing harness, the calibration of the model carbon load is realized, thereby improving the over-temperature control accuracy of the after-processing harness of the extended-range loader.

[0021] 2. The present invention innovatively proposes a control strategy to prevent the overheating of the post-processing harness of the extended-range loader, and determines whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; when the current carbon load is less than or equal to the basic exit carbon load, it is determined whether the post-processing temperature reaches the set maximum temperature. If so, the fan speed is increased from the basic fan speed to the fan speed threshold. If not, it returns to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature, further improving the accuracy of wind speed control.

[0022] 3. The present invention innovatively proposes a control strategy to prevent the overheating of the post-processing harness of the extended-range loader. The basic exit carbon load is the exit carbon load under the traditional regeneration strategy or the conventional regeneration strategy. Under the traditional regeneration strategy or the conventional regeneration strategy, when the basic exit carbon load is reached, the post-processing harness overheats. The basic fan speed is not changed, and the exit regeneration carbon load is increased to obtain the exit regeneration carbon load threshold that prevents the post-processing harness from overheating, thereby ensuring the control accuracy of the carbon load.

[0023] 4. The invention innovatively proposes a control strategy to prevent the overheating of the post-processing harness of the extended-range loader. The basic fan speed is the fan speed under the traditional fan control strategy or the conventional fan control strategy. Under the traditional fan control strategy or the conventional fan control strategy, when the basic fan speed is reached, the post-processing harness overheats. The basic exit carbon load for exiting regeneration is not changed. The fan speed is increased when the regeneration process reaches the highest regeneration temperature, and the fan speed threshold that prevents the post-processing harness from overheating is obtained, thereby effectively ensuring the wind speed control of the overheating of the post-processing harness.

[0024] Advantages of additional aspects of the present invention will be given in part in the following description, and in part will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings in the specification, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0026] Figure 1 A schematic diagram of the process of a control method for preventing overheating of a post-processing harness of an extended-range loader provided in Embodiment 1 of the present invention; Figure 2 A flow chart of a control method for preventing overheating of a post-processing harness of an extended-range loader provided in Embodiment 1 of the present invention; Figure 3 A schematic diagram of a control system for preventing overheating of a post-processing harness of an extended-range loader provided in Embodiment 2 of the present invention; Figure 4 A schematic diagram of a computer device provided in Example 3 of the present invention. DETAILED DESCRIPTION

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] It should be noted that the following detailed descriptions are exemplary and are intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present invention belongs.

[0029] In the absence of conflict, the embodiments of the present invention and the features of the embodiments may be combined with each other. Embodiment 1:

[0030] This implementation proposes a control method to prevent overheating of the post-processing harness of the extended-range loader. The following is a brief introduction to the technical terms and related concepts involved in this treatment scheme, including: Loaders are heavy machinery widely used in engineering construction, mining, agriculture and other fields. They are mainly used for shoveling, transportation, stacking and filling. The front of the loader is equipped with a large bucket, which is controlled by the hydraulic system to lift and tilt. It can easily shovel and carry loose materials such as soil, sand, coal, etc. According to different uses and working environments, loaders have various types and specifications, including wheel loaders and crawler loaders. The working characteristics of loaders include high efficiency, flexibility and strong adaptability, and they can perform high-intensity operations in various complex terrains and environments.

[0031] A range extender is a device used to extend the driving range of an electric or hybrid vehicle. It is usually a small internal combustion engine (such as a gasoline or diesel engine) combined with a generator. The main function of the range extender is to charge the battery by generating electricity when the battery is exhausted, thereby extending the vehicle's driving distance. The range extender can maintain low fuel consumption and emissions during vehicle operation, enhancing the convenience of using electric vehicles. A range extender loader is a loader equipped with a range extender.

[0032] Carbon load refers to the total amount of carbon accumulated in the engine, exhaust system or other related equipment. The model-calculated carbon load will have calculation deviations, and the actual carbon load needs to be eliminated to an extremely low value through the regeneration high-temperature carbon elimination process, so that the model carbon load is consistent with the actual carbon load, so as to achieve the purpose of verifying the model carbon load.

[0033] The control method, such as Figure 1 As shown, the following process is included: S1: Obtain the basic exit carbon load sm0, the basic fan speed n0 and the current carbon load; S2: When the current carbon load is greater than a set threshold value sm_max, enter the regeneration mode; S3: When the number of regenerations is greater than the set number threshold (i.e., threshold m), there is a need to verify the carbon load, the basic exit carbon load sm0 is kept unchanged, and the fan speed is controlled based on the current carbon load and the post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed n0 is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold sm1 based on the basic exit carbon load sm0.

[0034] In S1 of the present implementation, the basic exit carbon load sm0 is the exit carbon load under the traditional regeneration strategy or the conventional regeneration strategy. Under the traditional regeneration strategy or the conventional regeneration strategy, when the basic exit carbon load sm0 is reached, the post-processing harness overheats. Similarly, the basic fan speed n0 is the fan speed under the traditional fan control strategy or the conventional fan control strategy. Under the traditional fan control strategy or the conventional fan control strategy, when the basic fan speed n0 is reached, the post-processing harness overheats.

[0035] It can be understood that the basic exit carbon load sm0 and the basic fan speed n0 here can be obtained through a limited number of tests, which will not be repeated here.

[0036] In S3 of this implementation, if Figure 2 As shown, the fan speed is controlled based on the current carbon load and the post-processing temperature, specifically, including: When the number of regenerations is greater than the set number threshold (i.e., threshold m), determine whether the current carbon load is greater than the basic exit carbon load sm0. When the current carbon load is greater than the basic exit carbon load sm0, the control ends; when the current carbon load is less than or equal to the basic exit carbon load sm0, determine whether the post-processing temperature has reached the set maximum temperature. If so, do not change the basic exit carbon load sm0, and increase the fan speed from the basic fan speed n0 to the wind speed threshold n1. If not, maintain the basic fan speed n0 unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load sm0 until the post-processing temperature reaches the set maximum temperature.

[0037] In S3 of this implementation, the acquisition of the exit regeneration carbon load threshold sm1 includes: without changing the basic fan speed n0, increasing the carbon load for exiting regeneration, and obtaining the exit regeneration carbon load threshold sm1 that prevents the post-processing harness from overheating. The acquisition of the fan speed threshold n1 includes: without changing the basic exit regeneration carbon load sm0, increasing the fan speed when the regeneration process reaches the highest regeneration temperature, and obtaining the fan speed threshold n1 that prevents the post-processing harness from overheating. Embodiment 2:

[0038] like Figure 3 As shown, this implementation provides a control system for preventing overheating of the post-processing harness of the extended-range loader, including: A data acquisition unit is configured to: acquire a basic exit carbon load, a basic fan speed, and a current carbon load; The regeneration judgment unit is configured to: enter a regeneration mode when the current carbon load is greater than a set threshold; The control unit is configured as follows: when the number of regenerations is greater than a set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and the post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0039] In the control unit, the fan speed is controlled based on the current carbon load and the post-processing temperature, including: When the number of regenerations is greater than a set threshold, it is determined whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; When the current carbon load is less than or equal to the basic exit carbon load, determine whether the post-processing temperature reaches the set maximum temperature. If so, do not change the basic exit carbon load, and increase the fan speed from the basic fan speed to the wind speed threshold. If not, maintain the basic fan speed unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature.

[0040] The specific working process of each unit is described in Example 1 and will not be repeated here.

[0041] It is understandable that the above-mentioned units can be separately or completely combined into one or several other units to constitute, or one (some) of the units can be further divided into multiple smaller units in function to constitute, which can achieve the same operation without affecting the realization of the technical effects of the embodiments of the present application. The above-mentioned units are divided based on logical functions. In practical applications, the functions of one unit can also be implemented by multiple units, or the functions of multiple units can be implemented by one unit. In other embodiments of the present application, the system may also include other units. In practical applications, these functions can also be implemented with the assistance of other units, and can be implemented by the collaboration of multiple units.

[0042] According to another embodiment of the present application, the system described in this embodiment can be constructed, and the method of Example 1 of the present application can be implemented by running a computer program (including program code) capable of executing the steps involved in the corresponding method described in Example 1 on a general-purpose computing device such as a computer, which includes processing elements and storage elements such as a central processing unit (CPU), random access memory (RAM), and read-only memory (ROM). The computer program can be recorded on, for example, a computer-readable recording medium, and loaded into the above-mentioned computing device through the computer-readable recording medium and run therein. Embodiment 3:

[0043] like Figure 4 As shown, this implementation provides an electronic device, which includes a processor 1001, a communication interface 1002, and a computer-readable storage medium 1003. The processor 1001, the communication interface 1002, and the computer-readable storage medium 1003 may be connected via a bus or other means.

[0044] Among them, the communication interface 1002 is used to receive and send data, the computer-readable storage medium 1003 can be stored in the memory of the electronic device, the computer-readable storage medium 1003 is used to store a computer program, the computer program includes program instructions, and the processor 1001 is used to execute the program instructions stored in the computer-readable storage medium 1003.

[0045] The processor 1001 (or CPU (Central Processing Unit)) is the computing core and control core of the electronic device, which is suitable for implementing one or more instructions, and specifically suitable for loading and executing one or more instructions to implement corresponding method processes or corresponding functions.

[0046] The processor 1001 is configured to execute the following process: Get the basic exit carbon load, basic fan speed and current carbon load; When the current carbon load is greater than a set threshold, entering a regeneration mode; When the number of regenerations is greater than the set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0047] The specific working process is described in Example 1 and will not be repeated here. Embodiment 4:

[0048] This implementation provides a computer-readable storage medium, which is a memory device in an electronic device for storing programs and data. It is understandable that the computer-readable storage medium here can include both built-in storage media in the electronic device and, of course, extended storage media supported by the electronic device. The computer-readable storage medium provides a storage space that stores the processing system of the electronic device.

[0049] In addition, the storage space also stores one or more instructions suitable for being loaded and executed by the processor, and these instructions may be one or more computer programs (including program codes). It should be noted that the computer-readable storage medium here may be a high-speed RAM memory, or a non-volatile memory, such as at least one disk memory; optionally, it may also be at least one computer-readable storage medium located away from the aforementioned processor.

[0050] In one embodiment, the computer-readable storage medium stores one or more instructions; the processor loads and executes the one or more instructions stored in the computer-readable storage medium to implement the following process: Get the basic exit carbon load, basic fan speed and current carbon load; When the current carbon load is greater than a set threshold, entering a regeneration mode; When the number of regenerations is greater than the set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0051] The specific working process is described in Example 1 and will not be repeated here.

[0052] A person skilled in the art can appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed in this application can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. A person skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0053] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When loading and executing computer program instructions on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted through a computer-readable storage medium. The computer instructions can be transmitted from a website site, a computer, a server or a data center to another website site, a computer, a server or a data center by wired (for example, coaxial cable, optical fiber, digital line (DSL, Digital Subscriber Line)) or wireless (for example, infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data processing device such as a server, a data center, etc. that includes one or more available media integrated. The available media may be magnetic media (eg, floppy disks, hard disks, magnetic tapes), optical media (eg, digital video disks), or semiconductor media (eg, solid state disks (SSD)). Embodiment 5:

[0054] This implementation method provides an extended-range loader, including a processor, and optionally, necessary components such as a power system, a transmission system, a loading working device, a battery pack and a control system (not described in detail here), wherein the processor serves as a central control unit, responsible for receiving and processing data from various sensors, and controlling various operations of the loader; the power system provides the energy required for the operation of the loader, and the transmission system is responsible for transmitting the power to the loading working device; the battery pack provides power support for the loader, and the control system regulates various functions of the loader according to the instructions of the processor.

[0055] In this implementation, preferably, the processor is configured to execute the following process of the control method for preventing the overheating of the post-processing harness of the extended-range loader: Get the basic exit carbon load, basic fan speed and current carbon load; When the current carbon load is greater than a set threshold, entering a regeneration mode; When the number of regenerations is greater than the set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

[0056] The specific working process is described in Example 1 and will not be repeated here.

[0057] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A control method for preventing overheating of a post-processing harness of an extended-range loader, characterized in that: The process includes: Get the basic exit carbon load, basic fan speed and current carbon load; When the current carbon load is greater than a set threshold, entering a regeneration mode; When the number of regenerations is greater than the set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

2. The control method for preventing overheating of the post-processing harness of the extended-range loader according to claim 1, characterized in that: The fan speed is controlled based on the current carbon load and the aftertreatment temperature, including: When the number of regenerations is greater than a set threshold, it is determined whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; When the current carbon load is less than or equal to the basic exit carbon load, determine whether the post-processing temperature reaches the set maximum temperature. If so, do not change the basic exit carbon load, and increase the fan speed from the basic fan speed to the wind speed threshold. If not, maintain the basic fan speed unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature.

3. The control method for preventing overheating of the post-processing harness of the extended-range loader according to claim 1, characterized in that: When the basic exit carbon load is reached, the aftertreatment harness overtemperature occurs; when the basic fan speed is reached, the aftertreatment harness overtemperature occurs.

4. The control method for preventing overheating of the post-processing harness of the extended-range loader according to any one of claims 1 to 3, characterized in that: The process of obtaining the exit regeneration carbon load threshold comprises: The basic fan speed is not changed, the carbon load for exiting regeneration is increased, and the carbon load threshold for exiting regeneration is obtained so that the after-treatment harness does not overheat.

5. The control method for preventing overheating of the post-processing harness of the extended-range loader according to claim 2, characterized in that: The process of obtaining the fan speed threshold includes: The basic exit carbon load for exiting regeneration is not changed, and the fan speed when the regeneration process reaches the maximum regeneration temperature is increased to obtain the fan speed threshold that prevents the post-processing harness from overheating.

6. A control system for preventing overheating of the post-processing harness of an extended-range loader, characterized in that: include: A data acquisition unit is configured to: acquire a basic exit carbon load, a basic fan speed, and a current carbon load; The regeneration judgment unit is configured to: enter a regeneration mode when the current carbon load is greater than a set threshold; The control unit is configured as follows: when the number of regenerations is greater than a set threshold, there is a need to verify the carbon load, the basic exit carbon load is kept unchanged, and the fan speed is controlled based on the current carbon load and the post-processing temperature; when the number of regenerations is less than or equal to the set threshold, there is no need to verify the carbon load, the basic fan speed is not increased, and the critical value of the carbon load for exiting regeneration is increased to the exit regeneration carbon load threshold based on the basic exit carbon load.

7. The control system for preventing overheating of the post-processing harness of the extended-range loader according to claim 6, characterized in that: In the control unit, the fan speed is controlled based on the current carbon load and the post-processing temperature, including: When the number of regenerations is greater than a set threshold, it is determined whether the current carbon load is greater than the basic exit carbon load. When the current carbon load is greater than the basic exit carbon load, the control ends; When the current carbon load is less than or equal to the basic exit carbon load, determine whether the post-processing temperature reaches the set maximum temperature. If so, do not change the basic exit carbon load, and increase the fan speed from the basic fan speed to the wind speed threshold. If not, maintain the basic fan speed unchanged, and return to continue to determine whether the current carbon load is greater than the basic exit carbon load until the post-processing temperature reaches the set maximum temperature.

8. A computer device, characterized in that: include: a processor and a computer readable storage medium; The processor is adapted to execute a computer program; The computer program is stored in the computer-readable storage medium. When the computer program is executed by the processor, the control method for preventing overheating of the post-processing harness of the extended-range loader as described in any one of claims 1 to 5 is implemented.

9. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and the computer program is suitable for being loaded by a processor and executing the control method for preventing overheating of a post-processing harness of an extended-range loader according to any one of claims 1 to 5.

10. An extended-range loader, characterized in that: include: A processor, wherein the processor is configured to execute the control method for preventing overheating of a post-processing harness of an extended-range loader according to any one of claims 1 to 5.

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