Shutdown control method and related device for an agricultural machine

Abstract

The present application discloses a shutdown control method and related devices for agricultural machinery. The method includes: obtaining the urea aqueous solution information of the engine of the agricultural machinery; confirming the engine model category based on the urea aqueous solution information, and the model category is an SCR model or a non-SCR model; during the process of the ignition switch of the engine being switched from the ignition position to the off position, generating a pre-shutdown instruction when it is detected that the ignition switch is in a preset position, and the preset position is a position close to the off position; after detecting the pre-shutdown instruction, determining a delay time based on the urea aqueous solution information, so as to delay the shutdown of the whole machine power supply based on the delay time; controlling the urea pump of the agricultural machinery to perform a reverse suction function based on the delay time and the pre-shutdown instruction. In this way, the present application delays the shutdown of the whole machine power supply through the determined delay time, realizes the unified control and management of the power-off time, can timely maintain the usage situation of the urea aqueous solution, and improves the engine performance.

Description

Technical Field

[0001] The present application relates to the technical field of engine control, and particularly to a shutdown control method and related equipment for agricultural machinery. Background Art

[0002] After the emission upgrade of agricultural machinery products, the post-treatment technical route of medium and large horsepower agricultural machinery products adopts the SCR (Selective Catalytic Reduction) route. During the use of the whole machine, it is necessary to pay attention to the liquid level of the urea aqueous solution. When shutting down, in order to reduce the crystallization of the urea aqueous solution in a low-temperature environment, usually the urea pump in the SCR technical route will perform back suction to avoid urea crystallization in the pipeline, which affects the engine operation.

[0003] In order to ensure the back suction effect, it is necessary to extend a period of time before shutting down the main power switch of the whole machine. Since the operators of the whole machine are not familiar with the operation of the SCR whole machine to the same extent, sometimes different operators will be replaced for operation. It is easy to forget the requirement of extending the time before turning off the power switch during operation. In the case of a low ambient temperature, if the urea pump of the SCR model is not thoroughly back-sucked, it will cause the urea aqueous solution to crystallize, thus blocking the pipeline and causing the engine to fail to work properly, requiring maintenance, which affects the operation of the whole machine. Summary of the Invention

[0004] To solve the above problems, embodiments of the present application provide a shutdown control method and system for agricultural machinery, an agricultural machinery, an electronic device, a computer-readable storage medium, and a computer program product.

[0005] In a first aspect, to solve the above technical problems, the present application provides a shutdown control method for agricultural machinery, including:

[0006] Obtain the urea aqueous solution information of the engine of the agricultural machinery;

[0007] Based on the urea aqueous solution information, confirm the model category of the engine, and the model category is an SCR model or a non-SCR model;

[0008] During the process of switching the ignition switch of the engine from the ignition position to the off position, when it is detected that the ignition switch is in a preset position, a pre-shutdown instruction is generated, and the preset position is a position close to the off position;

[0009] After detecting the pre-shutdown instruction, determine a delay time based on the urea aqueous solution information, so as to delay turning off the main power of the whole machine based on the delay time;

[0010] Control the urea pump of the agricultural machinery to perform the back-suction function based on the delay time and the pre-shutdown instruction.

[0011] The beneficial effects are as follows:

[0012] In the technical solution provided by the embodiment of the present application, obtain the urea aqueous solution information of the engine; confirm the model category of the engine based on the urea aqueous solution information, and the model category is an SCR model or a non-SCR model; during the process of the ignition switch of the engine switching from the ignition position to the off position, when it is detected that the ignition switch is at a preset position close to the off position, generate a pre-shutdown instruction; after detecting the pre-shutdown instruction, determine the delay time based on the urea aqueous solution information, so as to delay the shutdown of the whole machine power supply based on the delay time; control the urea pump of the agricultural machinery to perform the back-suction function based on the delay time and the pre-shutdown instruction.

[0013] In this way, the present application determines the delay time based on the urea aqueous solution information, realizes the unified control of the power-off time, can timely maintain the usage situation of the urea aqueous solution, and avoids the situation that the power supply is not delayed to be turned off after the engine is turned off due to the replacement of the operator, resulting in incomplete back-suction and crystallization of the urea aqueous solution, blocking the pipeline and affecting the engine performance. At the same time, it ensures the operation of the back-suction function of the urea pump of the SCR model during the shutdown process, and further avoids the formation of pipeline crystallization in the case of low ambient temperature.

[0014] In a second aspect, the present invention provides an agricultural machinery, which applies the shutdown control method of the agricultural machinery as described above; the agricultural machinery includes an ignition switch, an engine control unit, a processor, and an instrument display;

[0015] The processor is connected to the ignition switch, the engine control unit, and the instrument display. The processor is used to obtain the urea aqueous solution information of the engine of the agricultural machinery; confirm the model category of the engine based on the urea aqueous solution information, and the model category is an SCR model or a non-SCR model; during the process of the ignition switch of the engine switching from the ignition position to the off position, generate a pre-shutdown instruction when it is detected that the ignition switch is at a preset position, and the preset position is a position close to the off position; after detecting the pre-shutdown instruction, determine the delay time based on the urea aqueous solution information, so as to delay the shutdown of the whole machine power supply based on the delay time;

[0016] The engine control unit is further used to control the urea pump of the agricultural machinery to perform the back-suction function based on the delay time and the pre-shutdown instruction.

[0017] In a third aspect, the present application further provides a shutdown control system for an agricultural machinery, including an acquisition unit, a model confirmation unit, a pre-shutdown unit, a delay unit, and a back-suction unit;

[0018] An acquisition unit, configured to confirm the engine model category based on the aqueous urea solution information, where the model category is an SCR model or a non-SCR model;

[0019] A pre-shutdown unit, configured to generate a pre-shutdown instruction when detecting that the ignition switch is in a preset position during the process of switching the ignition switch of the engine from the ignition position to the off position, where the preset position is a position close to the off position;

[0020] A delay unit, configured to determine a delay time based on the aqueous urea solution information after detecting the pre-shutdown instruction, so as to delay the shutdown of the whole machine power supply based on the delay time;

[0021] A backflow unit, configured to control the urea pump of the agricultural machinery to perform a backflow function based on the delay time and the pre-shutdown instruction.

[0022] In a fourth aspect, the present application further provides an electronic device, including: one or more processors; a storage device, configured to store one or more programs, when the one or more programs are executed by the one or more processors, enabling the electronic device to implement the shutdown control method of the agricultural machinery as described above.

[0023] In a fifth aspect, the present application further provides a computer-readable storage medium, on which computer-readable instructions are stored, when the computer-readable instructions are executed by a processor of a computer, enabling the computer to execute the shutdown control method of the agricultural machinery as described above.

[0024] In a sixth aspect, the present application further provides a computer program product or a computer program, the computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, enabling the computer device to execute the shutdown control method of the agricultural machinery provided in the above various alternative embodiments.

[0025] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated into the specification and form a part of the specification, showing embodiments consistent with the present application, and are used together with the specification to explain the principles of the present application. Obviously, the accompanying drawings in the following description are only some embodiments of the present application, and those of ordinary skill in the art can obtain other drawings according to these drawings without creative efforts. In the drawings:

[0027] Figure 1It is a flowchart of a shutdown control method for an agricultural machine shown in an exemplary embodiment of the present application;

[0028] Figure 2 It is a schematic diagram of an agricultural machine applying the shutdown control method for an agricultural machine provided by the present application in an exemplary embodiment;

[0029] Figure 3 It is a flowchart of applying the shutdown control method for an agricultural machine to an agricultural machine provided by the present application in an exemplary embodiment;

[0030] Figure 4 It is a block diagram of a shutdown control system for an agricultural machine shown in an exemplary embodiment of the present application;

[0031] Figure 5 It is a schematic structural diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application. Detailed implementation manners

[0032] Here, the exemplary embodiments will be described in detail, and the examples are shown in the drawings. When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present application. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0033] The block diagrams shown in the drawings are only functional entities and do not necessarily correspond to physically independent entities. That is, these functional entities can be implemented in software form, or in one or more hardware modules or integrated circuits, or in different networks and / or processor devices and / or microcontroller devices.

[0034] The flowcharts shown in the drawings are only exemplary descriptions and do not necessarily include all contents and operations / steps, nor do they necessarily need to be executed in the described order. For example, some operations / steps can be decomposed, and some operations / steps can be combined or partially combined. Therefore, the actual execution order may change according to the actual situation.

[0035] In the present application, "a plurality of" means two or more. "And / or" describes the association relationship of associated objects and indicates that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist simultaneously, and B exists alone. The character " / " generally represents an "or" relationship between the associated objects before and after.

[0036] To solve the problem that when the machine is shut down, the main power switch of the whole machine fails to be turned off after a certain period of extension, resulting in incomplete back suction of the urea pump corresponding to the SCR model, crystallization of the aqueous urea solution, blockage of the pipeline, and abnormal operation of the engine, the embodiments of the present application propose a shutdown control method and system for agricultural machinery, an agricultural machinery, an electronic device, a computer-readable storage medium, and a computer program product, mainly related to the shutdown control method of agricultural machinery and related equipment technologies included in engine control technologies. These embodiments will be described in detail below.

[0037] First, please refer to Figure 1 , Figure 1 which is a flowchart of the shutdown control method for agricultural machinery shown in an exemplary embodiment of the present application. This method can be specifically executed by a server. The server can be an independent server or a cloud server that provides basic cloud computing services such as cloud services, cloud databases, cloud computing, cloud functions, cloud storage, network services, cloud communications, middleware services, domain name services, security services, Content Delivery Network (CDN), and big data and artificial intelligence platforms. There is no limitation here.

[0038] As Figure 1 shown, in an exemplary embodiment, the shutdown control method for agricultural machinery may include steps S101 to S105, which are introduced in detail as follows:

[0039] Step S101, obtain the aqueous urea solution information of the engine of the agricultural machinery.

[0040] Step S102, confirm the model category of the engine based on the aqueous urea solution information, and the model category is an SCR model or a non-SCR model.

[0041] In this embodiment, the model category of the engine is determined through the obtained aqueous urea solution information of the engine. The model category is an SCR model or a non-SCR model. The SCR model means that the engine needs to treat the exhaust gas with the aqueous urea solution. The present application only controls the shutdown time for the SCR model. If the engine is a non-SCR model, it is not necessary to use the control method provided by the present application for control.

[0042] Step S103, during the process of the ignition switch of the engine being switched from the ignition position to the off position, generate a pre-shutdown instruction when the ignition switch is detected to be in a preset position, and the preset position is a position close to the off position.

[0043] Step S104, after detecting the pre-shutdown instruction, determine the delay time based on the aqueous urea solution information, so as to delay the shutdown of the main power supply based on the delay time.

[0044] Step S105, based on the delay time and the pre-shutdown instruction, control the urea pump of the agricultural machinery to perform the back-suction function.

[0045] When the ignition switch is switched from the ignition position (ON) to a preset position close to the off position (OFF), it indicates that the engine is about to shut down. In this application, by configuring a pre-shutdown instruction, the delay time is obtained based on the pre-shutdown instruction, so as to delay the shutdown of the whole machine power supply through the operation feedback by the operator or directly control the shutdown of the whole machine power supply based on the delay time, and control the urea pump of the agricultural machinery to perform the back-suction function before the engine shuts down. Among them, the preset position is between the accessory position (ACC, Accessory) and the off position (OFF) of the ignition switch, and the distance value or angular difference from the off position is a preset threshold. The specific value of the preset threshold can be set according to requirements and is not limited here as long as it can represent that the engine is about to shut down.

[0046] As can be seen from the above, in the method provided in this embodiment, on the one hand, for the engine of the SCR model, after detecting the pre-shutdown instruction of the engine, the delay time is determined based on the urea aqueous solution information, realizing the unified control and management of the power-off time, so as to be able to maintain the usage situation of the urea aqueous solution in a timely manner. On the other hand, by delaying the shutdown of the whole machine power supply, sufficient time is reserved for performing the back-suction function, avoiding the situation that due to the replacement of the operator, the power supply is not delayed to shut down after the engine shuts down, resulting in incomplete back-suction and crystallization of the urea aqueous solution, blocking the pipeline and affecting the engine performance, and improving the engine performance.

[0047] In an exemplary embodiment of this application, the specific steps of obtaining the urea aqueous solution information of the engine of the agricultural machinery may include:

[0048] When the ignition switch is in the ignition position, generate a start instruction;

[0049] Based on the start instruction, collect the urea aqueous solution information of the engine, and the urea aqueous solution information includes urea liquid level data.

[0050] When the ignition switch is in the ignition position (ON), all the circuits of the whole machine are powered on and the engine is ready to start. In the embodiment of this application, a start instruction is configured to generate a start instruction when the ignition switch is in the ignition position and transmit it to the engine control unit, so that the engine control unit controls the urea liquid level sensor to collect the urea liquid level data of the engine and form the urea aqueous solution information.

[0051] In addition, the way to confirm the engine model category based on the urea aqueous solution information in this embodiment can be to detect whether the engine control unit transmits urea liquid level data. If no data is transmitted, the urea aqueous solution information is empty, and it is determined that the engine model category is a non-SCR model, otherwise it is an SCR model.

[0052] In another exemplary embodiment, after the information of the aqueous urea solution of the engine is collected, it is also necessary to confirm and display the filling requirement information. The specific steps may include:

[0053] Obtain the liquid level height in the urea chamber based on the urea liquid level data;

[0054] Determine the filling requirement information based on the liquid level height, generate a filling prompt message based on the filling requirement information and display it. The filling requirement information is the information indicating whether it is necessary to supplement the aqueous urea solution.

[0055] In this way, in each time of starting the engine by ignition, the present application configures a start instruction, collects the information of the aqueous urea solution of the engine based on the start instruction to determine the corresponding delay time; and detects the filling requirement information of the aqueous urea solution based on the liquid level height corresponding to the urea liquid level data. When the liquid level height is greater than the preset height, it is determined that there is no need to supplement the aqueous urea solution, and the filling prompt message is not displayed. Otherwise, it is necessary to display, for example, "The aqueous urea solution is insufficient and needs to be added in time", so as to make the aqueous urea solution sufficient to ensure that the aqueous urea solution condition can meet the realization of the backflow function.

[0056] In an exemplary embodiment of the present application, the specific steps for determining the delay time based on the aqueous urea solution information after detecting the pre-shutdown instruction may include:

[0057] After detecting the pre-shutdown instruction, obtain the device information of the urea pump. The device information includes the working pressure and flow parameters;

[0058] Obtain the backflow time corresponding to the backflow function based on the device information and the aqueous urea solution information;

[0059] Determine the delay time based on the backflow time.

[0060] In this embodiment, the aqueous urea solution information includes urea liquid level data. After detecting the pre-shutdown instruction, the backflow time required for the backflow function is obtained based on the working pressure and flow parameters of the urea pump and the aqueous urea solution information. In the embodiment provided by the present application, the starting time point of the backflow function is the time point when the ignition switch is in the off position. Therefore, after determining the backflow time, the required delay time can be determined. Among them, the end time point of the delay time is greater than or equal to the end time point of the backflow time, avoiding too long or too short delay time and ensuring the backflow effect.

[0061] In addition, if the filling requirement information is detected during ignition, the backflow time corresponding to the backflow function is obtained based on the urea liquid level information and device information after filling, and then the accurate delay time is determined.

[0062] In an exemplary embodiment of the present application, the specific steps for determining the delay time based on the aqueous urea solution information may include:

[0063] When the ignition switch is in the ignition position, a start instruction is generated;

[0064] Based on the start instruction, power-on processing is performed on the instrument display to obtain the powered-on instrument display;

[0065] Based on the delay time, delay prompt information is obtained, and the powered-on instrument display is used to display the delay prompt information, so as to delay turning off the overall machine power based on the delay prompt information.

[0066] In this embodiment, the preset position is between the accessory position and the off position of the ignition switch, close to the off position, and the distance value or angular difference from the off position is a preset threshold. When the ignition switch is in the ignition position, a start instruction is generated, and power-on processing is performed on the instrument display based on the start instruction to obtain the powered-on instrument display. When the ignition switch rotates from ON through ACC and approaches OFF to reach the preset position, other accessory devices are powered off, but the instrument display is not powered off to ensure the display effect of the prompt information.

[0067] For the delay prompt information, after a pre-shutdown instruction is generated when the ignition switch is in the preset position, the delay time is determined, the delay prompt information is generated based on the delay time, and the powered-on instrument display is used to display the delay prompt information. Thus, the operator can be timely reminded to delay turning off the overall machine power, or directly use the delay prompt information to control the overall machine power to be disconnected after a delay time after the engine stops working.

[0068] Please refer to Figure 2 , Figure 2 FIG. is a schematic diagram of an agricultural machine applying the shutdown control method of the agricultural machine provided by the present application in an exemplary embodiment. As Figure 2 shown, the agricultural machine includes an ignition switch 21, an engine control unit 22, a processor 23, and an instrument display 24. The processor 23 is connected to the ignition switch 21, the engine control unit 22, and the instrument display 24; the agricultural machine further includes a urea level sensor 25, and the urea level sensor 25 is connected to the engine control unit 22.

[0069] Among them, the ignition switch 21 is a device for starting and shutting down the engine in the whole vehicle. When the ignition switch 21 is in the off position (OFF), the whole machine is completely powered off and the engine does not work; when it is in the accessory (ACC) position, part of the circuits of the whole machine are powered on, and electrical devices such as radios and windows can be used, but the engine does not work; when it is in the ignition (ON) position, all the circuits of the whole machine are powered on, the engine is ready to start, and the indicator lights on the instrument panel light up; when it is in the start position (START), the engine is started. Usually, the key needs to be turned to this position and held for a few seconds until the engine starts.

[0070] In this embodiment, when the ignition switch 21 is in the ignition position, the processor 23 generates a start instruction and transmits it to the engine control unit 22; the engine control unit 22 controls the urea level sensor 25 to collect the urea aqueous solution information of the engine based on the start instruction, and the urea aqueous solution information includes urea level data.

[0071] The processor 23 and the instrument display 24 have a display output mode and a memory function. After the manual operation when the ignition switch 21 is in the ignition position is completed, it is memorized, and the engine model category is confirmed based on the urea aqueous solution information. The model category is an SCR model or a non-SCR model; during the process of switching the ignition switch 21 of the engine from the ignition position to the off position, a pre-shutdown instruction is generated when it is detected that the ignition switch 21 is in a preset position, and the preset position is a position close to the off position; after the pre-shutdown instruction is detected, the delay time is determined based on the urea aqueous solution information, so as to delay the shutdown of the whole machine power supply based on the delay time.

[0072] The engine control unit 22 is used to transmit the urea aqueous solution information of the engine, and is also used to control the urea pump of the agricultural machinery to perform the back-suction function based on the delay time and the pre-shutdown instruction.

[0073] Please refer to Figure 3 , Figure 3 which is a flowchart of the shutdown control method of the agricultural machinery applied in an exemplary embodiment of the agricultural machinery provided by this application.

[0074] As Figure 3 shown, when the ignition switch is in the off position (OFF), the power supply of the whole machine is completely cut off, the engine does not work, and the instrument display does not work.

[0075] When the ignition switch is in the ignition position (ON), all circuits of the whole machine are powered on, the engine is ready to start, and the instrument display shows normally. The processor receives the urea level data of the urea level sensor collected by the engine control unit ECU. The processor confirms that it is an SCR model based on the urea level data, and judges whether refueling is required. If refueling is required, a prompt will be given, such as "The urea aqueous solution is insufficient and needs to be added in time". If refueling is not required, the obtained urea level data will be displayed using the instrument display.

[0076] During the process that the ignition switch rotates from ON through ACC and approaches OFF, the engine is prepared to be shut down. If the ignition switch is not in the preset position, the obtained urea level data will continue to be displayed using the instrument display. If the ignition switch is in the preset position, on the premise that the engine is an SCR model, the instrument display will show a delayed prompt message obtained by the processor based on the urea level data, such as "After shutting down the engine, wait for T minutes before turning off the power", where T minutes is the delay time determined based on the urea level data.

[0077] Figure 4 It is a block diagram of a shutdown control system 400 of an agricultural machine shown in an exemplary embodiment of the present application. As Figure 4 shown, the system includes:

[0078] An acquisition unit 401, configured to acquire the urea aqueous solution information of the engine of the agricultural machine;

[0079] A model confirmation unit 402, configured to confirm the model category of the engine based on the urea aqueous solution information, and the model category is an SCR model or a non-SCR model;

[0080] A pre-shutdown unit 403, configured to generate a pre-shutdown instruction when it is detected that the ignition switch is in the preset position during the process that the ignition switch of the engine switches from the ignition position to the off position, and the preset position is a position close to the off position;

[0081] A delay unit 404, configured to determine a delay time based on the urea aqueous solution information after detecting the pre-shutdown instruction, so as to delay turning off the power of the whole machine based on the delay time;

[0082] A backflow unit 405, configured to control the urea pump of the agricultural machine to perform a backflow function based on the delay time and the pre-shutdown instruction.

[0083] This system applies the shutdown control method for agricultural machinery provided in this application. The acquisition unit 401, model confirmation unit 402, pre-shutdown unit 403, and delay unit 404 determine the delay time and the corresponding delay prompt information based on the urea aqueous solution information, and display the delay prompt information, achieving unified control of the power-off time. It can timely maintain the usage of the urea aqueous solution, avoiding the situation where, due to operator replacement, the power supply is not delayed after shutdown, resulting in incomplete backflow, crystallization of the urea aqueous solution, and blockage of the pipeline, affecting the engine performance. At the same time, the backflow unit 405 ensures the operation of the backflow function of the SCR model urea pump during the shutdown process, further avoiding pipeline crystallization in the case of low ambient temperature.

[0084] In another exemplary embodiment, the acquisition unit 401 is further configured to generate a start command when the ignition switch is in the ignition position; collect the urea aqueous solution information of the engine based on the start command, and the urea aqueous solution information includes urea liquid level data.

[0085] In another exemplary embodiment, the system further includes:

[0086] A filling unit, configured to obtain the liquid level height in the urea chamber based on the urea liquid level data; determine the filling requirement information based on the liquid level height, generate a filling prompt information based on the filling requirement information and display it, and the filling requirement information is information indicating whether urea aqueous solution needs to be replenished.

[0087] In another exemplary embodiment, the delay unit 404 is further configured to, after detecting a pre-shutdown command, obtain the device information of the urea pump, and the device information includes working pressure and flow parameters; obtain the backflow time corresponding to the backflow function based on the device information and the urea aqueous solution information; determine the delay time based on the backflow time.

[0088] In another exemplary embodiment, the delay unit 404 is further configured to generate a start command when the ignition switch is in the ignition position; perform a power-on process on the instrument display based on the start command to obtain the powered-on instrument display; obtain the delay prompt information based on the delay time, and use the powered-on instrument display to display the delay prompt information to delay the shutdown of the entire machine power supply based on the delay prompt information.

[0089] It should be noted that the shutdown control system of the agricultural machinery provided in the above embodiments and the shutdown control method of the agricultural machinery provided in the above embodiments belong to the same concept. The specific manners in which each module and unit perform operations have been described in detail in the method embodiments, and will not be elaborated here. In practical applications, the shutdown control system of the agricultural machinery provided in the above embodiments can, as required, allocate the above functions to different functional modules, that is, divide the internal structure of the device into different functional modules to complete all or part of the functions described above. This is not limited herein either.

[0090] An embodiment of the present application further provides an electronic device, including: one or more processors; a storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the shutdown control method of the agricultural machinery provided in each of the above embodiments.

[0091] Figure 5 The structural diagram of a computer system of an electronic device suitable for implementing the embodiments of the present application is shown. It should be noted that Figure 5 The computer system 500 of the electronic device shown is only an example and should not impose any limitations on the functions and usage scope of the embodiments of the present application.

[0092] As Figure 5 shown, the computer system 500 includes a central processing unit (CPU) 501, which can perform various appropriate actions and processes according to the program stored in the read-only memory (ROM) 502 or the program loaded from the storage section 508 into the random access memory (RAM) 503, such as executing the method in the above embodiments. In the RAM 503, various programs and data required for system operation are also stored. The CPU 501, ROM 502, and RAM 503 are connected to each other through a bus 504. The input / output (I / O) interface 505 is also connected to the bus 504.

[0093] The following components are connected to the I / O interface 505: an input section 506 including a keyboard, a mouse, etc.; an output section 507 including a cathode ray tube (CRT), a liquid crystal display (LCD), etc. and a speaker, etc.; a storage section 508 including a hard disk, etc.; and a communication section 509 including a network interface card such as a LAN (Local Area Network) card, a modem, etc. The communication section 509 performs communication processing via a network such as the Internet. A drive 510 is also connected to the I / O interface 505 as needed. A removable medium 511 such as a magnetic disk, an optical disk, a magneto-optical disk, a semiconductor memory, etc. is installed on the drive 510 as needed so that a computer program read therefrom is installed into the storage section 508 as needed.

[0094] Specifically, according to an embodiment of the present application, the processes described above with reference to the flowcharts can be implemented as computer software programs. For example, an embodiment of the present application includes a computer program product including a computer program carried on a computer-readable medium, the computer program including a computer program for performing the method shown in the flowchart. In such an embodiment, the computer program can be downloaded and installed from the network via the communication section 509, and / or installed from the removable medium 511. When the computer program is executed by a central processing unit (CPU) 501, various functions defined in the system of the present application are executed.

[0095] It should be noted that the computer-readable medium shown in the embodiments of the present application can be a computer-readable signal medium, a computer-readable storage medium, or any combination of the two. A computer-readable storage medium can be, for example, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination of the above. More specific examples of the computer-readable storage medium may include, but are not limited to: an electrical connection with 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), a flash memory, an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In the present application, a computer-readable signal medium may include a data signal propagated in a baseband or as part of a carrier wave, which carries a computer-readable computer program. Such a propagated data signal can take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. A computer-readable signal medium can also be any computer-readable medium other than a computer-readable storage medium, which can send, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device. The computer program contained on the computer-readable medium can be transmitted by any appropriate medium, including but not limited to: wireless, wired, etc., or any suitable combination of the above.

[0096] The flowcharts and block diagrams in the accompanying drawings illustrate the possible architectures, functions, and operations of systems, methods, and computer program products according to various embodiments of the present application. Among them, each block in the flowchart or block diagram can represent a module, a program segment, or a part of code, and the above module, program segment, or part of code contains one or more executable instructions for implementing the specified logical function. It should also be noted that in some alternative implementations, the functions marked in the blocks may occur in a different order than that marked in the accompanying drawings. For example, two consecutive blocks shown may actually be executed substantially in parallel, and they may sometimes be executed in the reverse order, depending on the functions involved. It should also be noted that each block in the block diagram or flowchart, and the combination of blocks in the block diagram or flowchart, can be implemented by a dedicated hardware-based system for performing the specified functions or operations, or can be implemented by a combination of dedicated hardware and computer instructions.

[0097] The units involved in the embodiments described in this application can be implemented in software or in hardware, and the described units can also be provided in a processor. Among them, the names of these units do not, in some cases, constitute a limitation on the unit itself.

[0098] Another aspect of this application also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the shutdown control method of the agricultural machinery as described above is implemented. The computer-readable storage medium can be included in the electronic device described in the above embodiments, or can exist alone without being assembled into the electronic device.

[0099] Another aspect of this application also provides a computer program product or a computer program. The computer program product or the computer program includes computer instructions, and the computer instructions are stored in a computer-readable storage medium. The processor of the computer device reads the computer instructions from the computer-readable storage medium, and the processor executes the computer instructions, so that the computer device executes the shutdown control method of the agricultural machinery provided in the above various embodiments.

[0100] The foregoing are only the preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

1. A shutdown control method for an agricultural machine, characterized in that, The method includes: Generating a start command when the ignition switch is in the ignition position; Collecting the aqueous urea solution information of the engine based on the start command, where the aqueous urea solution information includes urea liquid level data; Confirming the engine model category based on the aqueous urea solution information, where the model category is an SCR model or a non-SCR model; During the process of switching the ignition switch of the engine from the ignition position to the off position, generating a pre-shutdown command when it is detected that the ignition switch is in a preset position, where the preset position is between the accessory position and the off position of the ignition switch, and the distance value or angular difference from the off position is a preset threshold to indicate that the engine is about to shut down; After detecting the pre-shutdown command, determining a delay time based on the aqueous urea solution information to delay turning off the overall machine power based on the delay time; specifically, after detecting the pre-shutdown command, obtaining the device information of the urea pump, where the device information includes working pressure and flow parameters; obtaining the backflow time corresponding to the backflow function based on the device information and the urea liquid level data; determining the delay time based on the backflow time; Controlling the urea pump of the agricultural machinery to perform a backflow function based on the delay time and the pre-shutdown command.

2. The method according to claim 1, wherein After collecting the aqueous urea solution information of the engine based on the start command, the method further includes: Obtaining the liquid level height in the urea chamber based on the urea liquid level data; Determining filling requirement information based on the liquid level height, generating a filling prompt information based on the filling requirement information and displaying it, where the filling requirement information is information indicating whether it is necessary to supplement the aqueous urea solution.

3. The method according to claim 1, wherein The determining the delay time based on the aqueous urea solution information to delay turning off the overall machine power based on the delay time includes: Generating a start command when the ignition switch is in the ignition position; Powering on the instrument display based on the start command to obtain the powered-on instrument display; Obtaining a delay prompt information based on the delay time, and using the powered-on instrument display to display the delay prompt information to delay turning off the overall machine power based on the delay prompt information.

4. An agricultural machine, characterized in that, Applying the shutdown control method of the agricultural machinery according to any one of claims 1 to 3; the agricultural machinery includes an ignition switch, an engine control unit, a processor, and an instrument display; The processor is connected to the ignition switch, the engine control unit, and the instrument display, and the processor is used to obtain the aqueous urea solution information of the engine of the agricultural machinery; Based on the information of the aqueous urea solution, confirm the engine model category, where the model category is an SCR model or a non-SCR model; during the process of the ignition switch of the engine being switched from the ignition position to the off position, when it is detected that the ignition switch is in a preset position, a pre-shutdown instruction is generated. The preset position is between the accessory position and the off position of the ignition switch, and the distance value or the angular difference from the off position is a preset threshold to indicate that the engine is about to shut down; after detecting the pre-shutdown instruction, determine the delay time based on the information of the aqueous urea solution, so as to delay the shutdown of the whole machine power supply based on the delay time. Specifically, after detecting the pre-shutdown instruction, obtain the device information of the urea pump, where the device information includes working pressure and flow parameters; obtain the backflow time corresponding to the backflow function based on the device information and the urea liquid level data; determine the delay time based on the backflow time; The engine control unit is further configured to control the urea pump of the agricultural machinery to perform a backflow function based on the delay time and the pre-shutdown instruction; The agricultural machinery further includes a urea liquid level sensor, and the urea liquid level sensor is connected to the engine control unit; When the ignition switch is in the ignition position, the processor is further configured to generate a start instruction and transmit it to the engine control unit; the engine control unit is further configured to control the urea liquid level sensor to collect the information of the aqueous urea solution of the engine based on the start instruction, and the information of the aqueous urea solution includes urea liquid level data.

5. A shutdown control system for an agricultural machine, characterized in that, Comprising: An acquisition unit, configured to generate a start instruction when the ignition switch is in the ignition position; Collect the information of the aqueous urea solution of the engine based on the start instruction, where the information of the aqueous urea solution includes urea liquid level data; A model confirmation unit, configured to confirm the engine model category based on the information of the aqueous urea solution, where the model category is an SCR model or a non-SCR model; A pre-shutdown unit, configured to generate a pre-shutdown instruction when it is detected that the ignition switch is in a preset position during the process of the ignition switch of the engine being switched from the ignition position to the off position. The preset position is between the accessory position and the off position of the ignition switch, and the distance value or the angular difference from the off position is a preset threshold to indicate that the engine is about to shut down; A delay unit, configured to determine the delay time based on the information of the aqueous urea solution after detecting the pre-shutdown instruction, so as to delay the shutdown of the whole machine power supply based on the delay time. Specifically, after detecting the pre-shutdown instruction, obtain the device information of the urea pump, where the device information includes working pressure and flow parameters; obtain the backflow time corresponding to the backflow function based on the device information and the urea liquid level data; Determine the delay time based on the backflow time; A backflow unit, configured to control the urea pump of the agricultural machinery to perform a backflow function based on the delay time and the pre-shutdown instruction.

6. An electronic device, characterized in that, Comprising: One or more processors; A storage device for storing one or more programs, which when executed by the one or more processors, cause the electronic device to implement the shutdown control method of the agricultural machinery according to any one of claims 1 to 3.

7. A computer-readable storage medium, characterized in that, Computer-readable instructions are stored thereon, which when executed by a processor of a computer, cause the computer to execute the shutdown control method of the agricultural machinery according to any one of claims 1 to 3.

Images