Thermal management calibration method, device and equipment of diesel engine and storage medium

Abstract

The invention discloses a thermal management calibration method, device and equipment of a diesel engine and a storage medium, and the thermal management calibration method of the diesel engine comprises the following steps: selecting a candidate thermal management calibration method with the highest priority as a target thermal management calibration method from a candidate thermal management calibration method list according to the fuel consumption priority; on the basis of the target thermal management calibration method, rack point scanning is carried out on the target diesel engine, and under different operation conditions, target attribute configuration is carried out on the target diesel engine in the working mode, so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in the working mode. According to the technical scheme, the oil consumption in the heat management calibration process of the diesel engine is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of diesel engine control, and particularly to a thermal management calibration method, device, equipment and storage medium for a diesel engine. Background Art

[0002] According to national regulations, commercial vehicles need to meet the China VI emission requirements, and even more stringent national VII regulations will emerge in the future. The impacts brought about include, but are not limited to, more stringent engine emission regulations, which impose more stringent requirements on the exhaust gas emission thermal management ability of the engine.

[0003] During the high-load stage of the engine, due to high power demand, the intake air flow of the engine is large, and thus the heat generated by engine combustion is more. On the premise that the thermal power conversion efficiency is basically stable, compared with the low-load stage, the exhaust gas temperature in the high-load stage will be abnormally high. The exhaust gas flowing through the catalytic converter will heat the catalytic converter, and too high exhaust gas temperature will cause the catalytic converter to rise to an extremely high temperature. The catalytic converter generally has a temperature tolerance upper limit, and exceeding this upper limit temperature will cause the catalytic converter to ablate.

[0004] Currently, the main method for reducing the too high exhaust gas temperature of the engine is enrichment protection, that is, injecting more fuel, using the vaporization heat absorption of liquid fuel to reduce the combustion temperature, and then achieving the purpose of reducing the too high exhaust gas temperature. This method will inevitably increase the fuel consumption and emissions of the engine; other methods include adding a heat dissipation device at the exhaust position to achieve temperature reduction, and this method has a complex structure and high cost. Summary of the Invention

[0005] The present invention provides a thermal management calibration method, device, equipment and storage medium for a diesel engine, so as to meet the exhaust gas temperature requirements of the diesel engine on the basis of not increasing the cost of the diesel engine and ensuring the reliability of the diesel engine.

[0006] According to one aspect of the present invention, a thermal management calibration method for a diesel engine is provided, and the method includes:

[0007] According to the fuel consumption priority, in the list of candidate thermal management calibration methods, select the candidate thermal management calibration method with the highest priority as the target thermal management calibration method; wherein, at least two candidate thermal management calibration methods in the list of candidate thermal management calibration methods are sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority;

[0008] Based on the target thermal management calibration method, perform bench sweeps on the target diesel engine. Under different operating conditions, configure the target attributes of the target diesel engine in the working mode so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in this working mode; wherein, the target attribute configuration refers to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, which is used to control the exhaust temperature of the diesel engine; the exhaust temperature standards corresponding to different working modes are different.

[0009] According to another aspect of the present invention, there is provided a thermal management calibration device for a diesel engine, the device comprising:

[0010] A target calibration module, configured to select the candidate thermal management calibration method with the highest priority as the target thermal management calibration method from the list of candidate thermal management calibration methods according to the fuel consumption priority; wherein, at least two candidate thermal management calibration methods in the list of candidate thermal management calibration methods are sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority;

[0011] A thermal management module, configured to perform bench sweeps on the target diesel engine based on the target thermal management calibration method, and configure the target attributes of the target diesel engine in the working mode under different operating conditions so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in this working mode; wherein, the target attribute configuration refers to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, which is used to control the exhaust temperature of the diesel engine; the exhaust temperature standards corresponding to different working modes are different.

[0012] According to another aspect of the present invention, there is provided an electronic device, the electronic device comprising:

[0013] At least one processor;

[0014] And a memory communicatively connected to the at least one processor;

[0015] Wherein, the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the thermal management calibration method of the diesel engine according to any embodiment of the present invention.

[0016] According to another aspect of the present invention, there is provided a computer-readable storage medium, the computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the thermal management calibration method of the diesel engine according to any embodiment of the present invention when executed by a processor.

[0017] According to another aspect of the present invention, there is provided a computer program product, which includes a computer program that, when executed by a processor, implements the thermal management calibration method for a diesel engine according to any embodiment of the present invention.

[0018] The technical solution of the embodiment of the present invention sorts the thermal management calibration methods according to the fuel consumption priority, and preferentially uses the thermal management calibration method with the highest fuel consumption priority to perform thermal management calibration on the target diesel engine, reducing the fuel consumption during the thermal management calibration of the diesel engine and saving the calibration cost.

[0019] It should be understood that the content described in this part is not intended to identify the key or important features of the embodiments of the present invention, nor is it used to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can obtain other drawings based on these drawings without creative efforts.

[0021] Figure 1 is a flowchart of a thermal management calibration method for a diesel engine according to Embodiment 1 of the present invention;

[0022] Figure 2 is a flowchart of a thermal management calibration method for a diesel engine according to Embodiment 2 of the present invention;

[0023] Figure 3 is a schematic structural diagram of a thermal management device for a diesel engine according to Embodiment 3 of the present invention;

[0024] Figure 4 is a schematic structural diagram of an electronic device for implementing the thermal management calibration method of the diesel engine in the embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] In order to enable those skilled in the art to better understand the solution of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present invention shall fall within the protection scope of the present invention.

[0026] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of the present invention are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present invention described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device that includes a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but may include other steps or units not clearly listed or inherent to these processes, methods, products or devices.

[0027] Embodiment 1

[0028] Figure 1 FIG. 1 is a flowchart of a thermal management calibration method for a diesel engine provided in Embodiment 1 of the present invention. This embodiment is applicable to the case of calibrating a diesel engine through a diesel engine test bench. This method can be executed by a thermal management calibration device of the diesel engine. The thermal management calibration device of the diesel engine can be implemented in the form of hardware and / or software, and the thermal management calibration device of the diesel engine can be configured in various general computing devices. As Figure 1 shown, the method includes:

[0029] S110. According to the fuel consumption priority, select the candidate thermal management calibration method with the highest priority in the candidate thermal management calibration method list as the target thermal management calibration method.

[0030] Among them, at least two candidate thermal management calibration methods in the candidate thermal management calibration method list can be sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority. It should be noted that the fuel consumption priority of the candidate thermal management calibration method can be determined by those skilled in the art according to historical experimental data.

[0031] Optionally, the candidate thermal management calibration method may include intake throttle opening calibration, two-stage main injection calibration, and exhaust throttle valve calibration. It should be noted that the intake throttle opening calibration refers to adjusting the opening of the throttle valve in the intake system of the diesel engine. The opening of the throttle valve determines the air flow rate entering the diesel engine. The smaller the opening of the throttle valve, the smaller the air flow rate entering the diesel engine. The two-stage main injection calibration refers to further dividing the post-injection (main injection) process in the diesel engine's intake and post-injection processes into two-stage main injection processes and adjusting the injection timing of the two-stage main injection processes. The exhaust throttle valve calibration refers to adjusting the valve of the exhaust throttle valve in the exhaust system of the diesel engine to control the exhaust flow rate and flow rate.

[0032] S120. Perform bench sweeps on the target diesel engine based on the target thermal management calibration method. Under different operating conditions, configure the target attributes of the target diesel engine in the working mode so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in this working mode.

[0033] Among them, the target attribute configuration can refer to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, which is used to control the exhaust temperature of the diesel engine. Exemplarily, if the target thermal management calibration method is intake throttle opening calibration, the target attribute can refer to the opening of the throttle valve; if the target thermal management calibration method is two-stage main injection calibration, the target attribute can refer to the injection timing of the two-stage main injection process; if the target thermal management calibration method is exhaust throttle valve calibration, the target attribute can refer to the valve opening of the exhaust throttle valve.

[0034] The exhaust temperature standards corresponding to different working modes of the target diesel engine are different. It should be noted that the working mode can include a thermal management mode and a regeneration mode, and the exhaust temperature standard corresponding to the regeneration mode is higher than the exhaust temperature standard corresponding to the thermal management mode. In the embodiments of the present invention, the exhaust temperature standard can refer to the temperature of the exhaust gas specified by the diesel engine.

[0035] In the embodiments of the present invention, an external torque experiment can be performed on the target diesel engine through a diesel engine bench to simulate different operating conditions of the target diesel engine. Exemplarily, the diesel engine bench gradually increases the load through the configured load device to simulate the operating conditions of the target diesel engine in actual work. The load output by the load device can be increased step by step in a preset load value according to a preset load cycle to simulate the full operating conditions of the target diesel engine. It should be noted that after the load device increases the load, it needs to run stably for a period of time to ensure the stability of the data collected during the operation. Optionally, the preset load cycle and the preset load value can be adaptively set by those skilled in the art.

[0036] It should be noted that the diesel engine bench, also known as the diesel engine test bench or diesel engine test rig, is a device used to perform performance tests, debugging, detection, and verification on diesel engines. The diesel engine bench usually includes a diesel engine test system, a diesel engine control system, a diesel engine monitoring system, and a data acquisition system, etc., and can simulate various operating conditions of the diesel engine in actual work for a comprehensive performance evaluation.

[0037] In another alternative embodiment of the present invention, during the process of thermal management calibration of a target diesel engine in the working mode, if, after performing thermal management calibration on the target diesel engine according to the target thermal management calibration method selected from the candidate thermal management calibration method list, the target diesel engine does not meet the exhaust temperature standard corresponding to the working mode, then continue to select the next target thermal management calibration method from the candidate thermal management calibration method list and perform thermal management calibration on the target diesel engine; wherein, the candidate thermal management calibration methods in the candidate thermal management calibration method list can only be selected once during one thermal management calibration process.

[0038] By sequentially selecting the target thermal management calibration method in the candidate thermal management calibration method list and preferentially using the thermal management calibration method with low fuel consumption to perform thermal management calibration on the target diesel engine, the exhaust temperature control of the diesel engine is realized, and the fuel consumption of the diesel engine is reduced.

[0039] The technical solution of the embodiment of the present invention sorts the thermal management calibration methods according to the fuel consumption priority, and preferentially uses the thermal management calibration method with the highest fuel consumption priority to perform thermal management calibration on the target diesel engine, reducing the fuel consumption during the thermal management calibration of the diesel engine and saving the calibration cost.

[0040] Embodiment 2

[0041] Figure 2 This is a flowchart of a thermal management calibration method for a diesel engine provided by Embodiment 2 of the present invention. This embodiment is further refined on the basis of the above embodiment, and provides specific steps for performing bench sweeps on the target diesel engine based on the target thermal management calibration method and configuring target attributes for the target diesel engine in different operating conditions. It should be noted that for the parts not detailed in the embodiment of the present invention, reference can be made to the relevant descriptions of other embodiments, which will not be elaborated here. As Figure 2 shown, the method includes:

[0042] S210. According to the fuel consumption priority, select the candidate thermal management calibration method with the highest priority in the candidate thermal management calibration method list as the target thermal management calibration method.

[0043] S220. If the target thermal management calibration method is two-stage main injection calibration, generate the thermal efficiency curve of the target diesel engine under different operating conditions through the combustion analyzer deployed in the diesel engine bench.

[0044] Among them, the abscissa of the thermal efficiency curve can be the main injection angle, and the ordinate of the thermal efficiency curve can be the thermal efficiency; the main injection angle can refer to the moment when the injector injects fuel into the target diesel engine.

[0045] It should be noted that during the process of a diesel engine burning engine oil, diesel can be injected into the diesel engine through two injection processes: pre-injection and main injection. Pre-injection means that at the early stage of the compression stroke of the diesel engine, the injector will first inject a part of the fuel. The function of this part of the fuel is to reduce the temperature fluctuation during the combustion process by igniting part of the fuel in advance, thereby reducing the nitrogen oxide (NOx) emissions. Pre-injection also helps to reduce noise and improve the smoothness of the engine; Main injection means that at the later stage of the compression stroke, the injector will inject the remaining fuel for main combustion. In the embodiments of the present invention, the main injection process is further divided into two main injection processes.

[0046] S230. Conduct a curve analysis on the thermal efficiency curve. In the thermal efficiency curve, determine the optimal thermal efficiency point in the thermal efficiency curve corresponding between the two main injection angles, and use this optimal thermal efficiency as the target coordinate point.

[0047] Among them, the optimal thermal efficiency point refers to the coordinate point closest to the thermal efficiency value of 0.

[0048] S240. Update the main injection angles of the two-stage main injection based on the target coordinate point.

[0049] Optionally, updating the main injection angles of the two-stage main injection based on the target coordinate point includes: updating the main injection angle corresponding to the target coordinate point to the injection angle of the latter stage of the two-stage main injection; where the latter main injection refers to the main injection with a later injection time among the two-stage main injection.

[0050] Optionally, in the embodiments of the present invention, if the target thermal management calibration method is intake throttle valve opening calibration, then under different operating conditions, adjust the opening of the intake throttle valve of the target diesel engine so that during the process of ensuring the adjustment of the opening of the intake throttle valve, the pressure in the intake manifold does not exceed the preset pressure value, and the opening of the intake throttle valve reaches the maximum opening within the preset opening threshold range. It should be noted that the preset pressure value and the preset opening threshold range can be adaptively set by those skilled in the art.

[0051] By setting a preset opening threshold for the throttle valve, it can effectively prevent the intake manifold pressure from being too low, resulting in increased fuel consumption.

[0052] Optionally, in the embodiments of the present invention, if the target thermal management calibration method is exhaust throttle valve calibration, then under different operating conditions, adjust the valve opening of the exhaust throttle valve of the target diesel engine so that during the process of ensuring the adjustment of the opening of the exhaust throttle valve, the opening of the exhaust throttle valve reaches the maximum opening within the preset valve opening threshold range, and the hydrocarbon emissions do not exceed the preset emission threshold. It should be noted that the preset valve opening threshold range and the preset emission threshold can be adaptively set by those skilled in the art.

[0053] Optionally, in the embodiments of the present invention, the fuel consumption priority of the intake throttle valve opening calibration is the highest, the fuel consumption priority of the exhaust throttle valve calibration is the second highest, and the fuel consumption priority of the two-stage main injection calibration is the lowest.

[0054] The solution of the embodiments of the present invention divides the main injection process into two stages by adopting two-stage main injection calibration for the target diesel engine, and performs thermal management calibration, which improves the accuracy in the thermal management calibration process, and adopting the two-stage main injection process can further reduce the fuel consumption of the diesel engine.

[0055] Advantageous effects of dependent claims

[0056] Embodiment III

[0057] Figure 3 It is a structural schematic diagram of a thermal management calibration device for a diesel engine provided in Embodiment III of the present invention. As Figure 3 shown, the device includes:

[0058] A target calibration module 310, configured to select the candidate thermal management calibration method with the highest priority in the candidate thermal management calibration method list as the target thermal management calibration method according to the fuel consumption priority; wherein, at least two candidate thermal management calibration methods in the candidate thermal management calibration method list are sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority;

[0059] A thermal management module 320, configured to perform bench sweep on the target diesel engine based on the target thermal management calibration method, and configure target attributes for the target diesel engine in the working mode under different operating conditions, so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in this working mode; wherein, the target attribute configuration refers to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, and is used to control the exhaust temperature of the diesel engine; the exhaust temperature standards corresponding to different working modes are different.

[0060] The technical solution of the embodiments of the present invention sorts the thermal management calibration methods according to the fuel consumption priority, and preferentially adopts the thermal management calibration method with the highest fuel consumption priority to perform thermal management calibration on the target diesel engine, which reduces the fuel consumption in the thermal management calibration process of the diesel engine and saves the calibration cost.

[0061] Optionally, the thermal management module 320 includes:

[0062] A main injection calibration unit, configured to generate a thermal efficiency curve of the target diesel engine under different operating conditions through a combustion analyzer deployed on the diesel engine bench if the target thermal management calibration method is two-stage main injection calibration; wherein, the abscissa of the thermal efficiency curve is the main injection angle, and the ordinate of the thermal efficiency curve is the thermal efficiency; the main injection angle refers to the moment when the injector injects fuel into the target diesel engine.

[0063] A coordinate point determination unit for performing curve analysis on the thermal efficiency curve, determining the optimal thermal efficiency point in the thermal efficiency curve corresponding to between two main injection angles in the thermal efficiency curve, and using this optimal thermal efficiency as the target coordinate point;

[0064] An update unit for updating the main injection angles of the two main injections based on the target coordinate point.

[0065] Optionally, the update unit can specifically be used to: update the main injection angle corresponding to the target coordinate point to the injection angle of the latter main injection in the two main injections; where the latter main injection refers to the main injection with a later injection time among the two main injections.

[0066] Optionally, the device further includes:

[0067] A calibration method determination module for, during the process of performing thermal management calibration on a target diesel engine in a working mode, if after performing thermal management calibration on it according to the target thermal management calibration method selected from the candidate thermal management calibration method list, the target diesel engine does not meet the exhaust temperature standard corresponding to this working mode, then continue to select the next target thermal management calibration method from the candidate thermal management calibration method list and perform thermal management calibration on the target diesel engine; where the candidate thermal management calibration methods in the candidate thermal management calibration method list can only be selected once in one thermal management calibration process.

[0068] Optionally, the candidate thermal management calibration methods include: intake throttle opening calibration, two-stage main injection calibration, and exhaust throttle valve calibration.

[0069] Optionally, the working modes include a thermal management mode and a regeneration mode, and the exhaust temperature standard corresponding to the regeneration mode is higher than the exhaust temperature standard corresponding to the thermal management mode.

[0070] The thermal management calibration device for a diesel engine provided by the embodiments of the present invention can execute the thermal management calibration method for a diesel engine provided by any embodiment of the present invention, and has the corresponding functional modules and beneficial effects for executing the method.

[0071] Embodiment 4

[0072] Figure 4The structural schematic diagram of an electronic device 410 that can be used to implement the embodiments of the present invention is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processors, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present invention described herein and / or claimed.

[0073] As Figure 4 shown, the electronic device 410 includes at least one processor 411, and a memory communicatively connected to the at least one processor 411, such as read-only memory (ROM) 412, random access memory (RAM) 413, etc. Among them, the memory stores a computer program executable by the at least one processor. The processor 411 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 412 or the computer program loaded from the storage unit 418 into the random access memory (RAM) 413. In the RAM 413, various programs and data required for the operation of the electronic device 410 can also be stored. The processor 411, ROM 412, and RAM 413 are connected to each other through a bus 414. The input / output (I / O) interface 415 is also connected to the bus 414.

[0074] Multiple components in the electronic device 410 are connected to the I / O interface 415, including: an input unit 416, such as a keyboard, a mouse, etc.; an output unit 417, such as various types of displays, speakers, etc.; a storage unit 418, such as a disk, an optical disc, etc.; and a communication unit 419, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 419 allows the electronic device 410 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0075] The processor 411 can be various general-purpose and / or special-purpose processing components with processing and computing capabilities. Some examples of the processor 411 include but are not limited to a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, a digital signal processor (DSP), and any appropriate processor, controller, microcontroller, etc. The processor 411 executes the various methods and processes described above, such as the thermal management calibration method of a diesel engine.

[0076] In some embodiments, the thermal management calibration method for a diesel engine can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 418. In some embodiments, part or all of the computer program can be loaded and / or installed onto the electronic device 410 via the ROM 412 and / or the communication unit 419. When the computer program is loaded into the RAM 413 and executed by the processor 411, one or more steps of the thermal management calibration method for the diesel engine described above can be executed. Alternatively, in other embodiments, the processor 411 can be configured to execute the thermal management calibration method for the diesel engine by any other suitable means (e.g., by means of firmware).

[0077] The various embodiments of the systems and techniques described above in this document can be implemented in digital electronic circuitry, integrated circuit systems, field-programmable gate arrays (FPGA), application specific integrated circuits (ASIC), application specific standard products (ASSP), systems-on-a-chip (SOC), complex programmable logic devices (CPLD), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including at least one programmable processor, which can be a special-purpose or general-purpose programmable processor that receives data and instructions from a storage system, at least one input device, and at least one output device, and transmits the data and instructions to the storage system, the at least one input device, and the at least one output device.

[0078] The computer programs for implementing the methods of the present invention can be written in any combination of one or more programming languages. These computer programs can be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer programs are executed by the processor, the functions / operations specified in the flowchart and / or block diagram are implemented. The computer programs can be executed entirely on the machine, partially on the machine, as a stand-alone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0079] In the context of the present invention, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by or in connection with an instruction execution system, apparatus, or device. The computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. Alternatively, the computer-readable storage medium can be a machine-readable signal medium. More specific examples of the machine-readable storage medium would include an electrical connection based on one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or Flash memory), an optical fiber, a portable compact disc read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0080] To provide for interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and a pointing device (e.g., a mouse or a trackball) by which the user can provide input to the electronic device. Other kinds of devices can also be used to provide for interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0081] The systems and techniques described herein can be implemented in a computing system that includes backend components (such as, for example, a data server), or a computing system that includes middleware components (such as, for example, an application server), or a computing system that includes frontend components (such as, for example, a user computer having a graphical user interface or a web browser through which the user can interact with an implementation of the systems and techniques described herein), or a computing system that includes any combination of such backend components, middleware components, or frontend components. The components of the system can be interconnected by any form or medium of digital data communication (such as, for example, a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0082] A computing system may include a client and a server. The client and the server are generally far from each other and usually interact via a communication network. The client-server relationship is created by computer programs running on respective computers and having a client-server relationship with each other. The server can be a cloud server, also known as a cloud computing server or a cloud host, which is a host product in the cloud computing service system, and solves the defects of difficult management and weak business scalability existing in traditional physical hosts and VPS services.

[0083] It should be understood that various forms of processes shown above can be used, with steps reordered, added or deleted. For example, the steps recited in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and no limitation is made herein.

[0084] The above specific embodiments do not constitute a limitation on the protection scope of the present invention. Those skilled in the art should understand that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A heat management calibration method for a diesel engine, characterized in that, Including: According to the fuel consumption priority, select the candidate thermal management calibration method with the highest priority in the list of candidate thermal management calibration methods as the target thermal management calibration method; wherein, at least two candidate thermal management calibration methods in the list of candidate thermal management calibration methods are sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority; Based on the target thermal management calibration method, conduct bench sweeps on the target diesel engine. Under different operating conditions, configure the target attributes of the target diesel engine in the working mode so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in this working mode; wherein, the target attribute configuration refers to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, which is used to control the exhaust temperature of the diesel engine; the exhaust temperature standards corresponding to different working modes are different.

2. The method according to claim 1, wherein The conducting bench sweeps on the target diesel engine based on the target thermal management calibration method and configuring the target attributes of the target diesel engine in the working mode under different operating conditions includes: If the target thermal management calibration method is two-stage main injection calibration, generate the thermal efficiency curve of the target diesel engine under different operating conditions through a combustion analyzer deployed on the diesel engine bench; wherein, the abscissa of the thermal efficiency curve is the main injection angle, and the ordinate of the thermal efficiency curve is the thermal efficiency; the main injection angle refers to the moment when the injector injects fuel into the target diesel engine; Conduct curve analysis on the thermal efficiency curve. In the thermal efficiency curve, determine the best thermal efficiency point in the thermal efficiency curve corresponding to between two main injection angles, and use this best thermal efficiency as the target coordinate point; Update the main injection angles of the two-stage main injection based on the target coordinate point.

3. The method according to claim 2, characterized in that, The updating the main injection angles of the two-stage main injection based on the target coordinate point includes: Update the main injection angle corresponding to the target coordinate point to the injection angle of the latter stage of the two-stage main injection; wherein, the latter main injection refers to the stage of the two-stage main injection with a later injection moment.

4. The method according to claim 1, characterized in that, Also including: During the process of conducting thermal management calibration on a target diesel engine in a working mode, if, after conducting thermal management calibration on it according to the target thermal management calibration method selected from the list of candidate thermal management calibration methods, the target diesel engine does not meet the exhaust temperature standard corresponding to this working mode, then continue to select the next target thermal management calibration method from the list of candidate thermal management calibration methods and conduct thermal management calibration on the target diesel engine; wherein, the candidate thermal management calibration methods in the list of candidate thermal management calibration methods can only be selected once during one thermal management calibration process.

5. The method according to claim 1, wherein The candidate thermal management calibration methods include: intake throttle opening calibration, two-stage main injection calibration, and exhaust throttle valve calibration.

6. The method according to claim 1, wherein The working modes include a thermal management mode and a regeneration mode, and the exhaust temperature standard corresponding to the regeneration mode is higher than the exhaust temperature standard corresponding to the thermal management mode.

7. A thermal management calibration device for a diesel engine, characterized in that, Including: A target calibration module, configured to select the candidate thermal management calibration method with the highest priority in the candidate thermal management calibration method list as the target thermal management calibration method according to the fuel consumption priority; wherein, at least two candidate thermal management calibration methods in the candidate thermal management calibration method list are sorted according to the fuel consumption priority, and the candidate thermal management calibration method with lower fuel consumption has a higher priority. A thermal management module, configured to perform bench sweeping on the target diesel engine based on the target thermal management calibration method, and configure target attributes for the target diesel engine in the working mode under different operating conditions, so that the exhaust temperature of the target diesel engine meets the exhaust temperature standard in the working mode; wherein, the target attribute configuration refers to the attribute configuration of the diesel engine corresponding to the target thermal management calibration method, which is used to control the exhaust temperature of the diesel engine; the exhaust temperature standards corresponding to different working modes are different.

8. An electronic device, characterized in that, The electronic device includes: At least one processor; And a memory communicatively connected to the at least one processor; Wherein, the memory stores a computer program executable by the at least one processor, and the computer program is executed by the at least one processor, so that the at least one processor can execute the thermal management calibration method of the diesel engine according to any one of claims 1-6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer instructions, and the computer instructions are used to implement the thermal management calibration method of the diesel engine according to any one of claims 1-6 when executed by a processor.

10. A computer program product, characterized in that, It includes a computer program, and the computer program implements the thermal management calibration method of the diesel engine according to any one of claims 1-6 when executed by a processor.

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