A diesel engine control method, device, equipment and storage medium

Abstract

This application discloses a diesel engine control method, device, equipment, and storage medium, relating to the field of automatic control technology. The method includes: real-time acquisition of operating condition data and ambient temperature of the diesel engine; adjustment of various control parameters of the diesel engine based on the operating condition data and ambient temperature; and adjustment of the diesel engine's operating condition based on the adjusted control parameters. The diesel engine control device provided in this application acquires signals such as diesel engine speed, oil pressure, and oil temperature, and analyzes the acquired information to further control the diesel engine's preheating, starting, and speed in a targeted manner, thereby adapting to harsh environments such as extreme cold, high heat, and high humidity.

Description

Technical Field

[0001] This application relates to the field of automatic control technology, and in particular to a diesel engine control method, device, equipment and storage medium. Background Technology

[0002] A diesel engine, as an internal combustion engine, uses compressed air in a closed space to generate high heat. After atomized diesel fuel is injected, it burns and expands, pushing the piston to move downward along the cylinder. The piston, crankshaft, and other components form a crank-connecting rod mechanism, which converts the linear motion of the piston into the rotational motion of the crankshaft. The inertia of the flywheel drives the piston to exhaust, intake, and compress air in a cyclical motion, thereby outputting mechanical work.

[0003] The process of converting fuel into mechanical energy involves various components of a diesel engine, including the fuel system, cooling system, lubrication system, control system, crankshaft connecting rod mechanism, and other systems. These systems, such as the fuel system, cooling system, and lubrication system, all require electronic control systems for monitoring and control. Through these systems, people can intuitively understand the actual operating conditions of the diesel engine, such as its operating speed, oil pressure, and cooling temperature.

[0004] Current diesel engine control systems have a narrow operating temperature range and cannot adapt to harsh environments such as extreme cold, high heat, and high humidity. High-power diesel engines often experience compression ignition difficulties in low-temperature environments due to the extremely low intake air temperature, which affects their starting performance. Conversely, in high-temperature environments, detonation can easily occur, leading to engine damage such as carbon buildup. Summary of the Invention

[0005] This application provides a diesel engine control method, apparatus, device, and storage medium to address the deficiencies of the aforementioned related technologies. The technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide a diesel engine control method, characterized in that it includes:

[0007] Real-time acquisition of operating condition data and ambient temperature of the diesel engine;

[0008] Adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature;

[0009] The operating conditions of the diesel engine are adjusted based on the adjusted control parameters.

[0010] In one alternative of the first aspect, the operating condition data includes diesel engine power, diesel engine speed, combustion chamber temperature, fuel consumption, and oil temperature.

[0011] In one alternative of the first aspect, the thermal efficiency of the diesel engine is calculated based on the ambient temperature, the combustion chamber temperature, and the fuel consumption.

[0012] In one alternative embodiment of the first aspect, adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes:

[0013] If the thermal efficiency is lower than the thermal efficiency threshold, calculate the difference between the thermal efficiency and the thermal efficiency threshold, and generate a temperature adjustment coefficient based on the standard temperature corresponding to the thermal efficiency threshold and the ambient temperature.

[0014] The preheating device of the diesel engine is adjusted based on the temperature adjustment coefficient, and the oil temperature and the intake air temperature are adjusted through the preheating device.

[0015] In one alternative embodiment of the first aspect, adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes:

[0016] If the ambient temperature is below the temperature threshold, the diesel engine speed and combustion chamber temperature are acquired in real time.

[0017] If the real-time diesel engine speed is lower than the diesel engine starting speed threshold and the combustion chamber temperature is lower than the diesel compression ignition temperature, the diesel engine preheating device is adjusted to adjust the diesel engine oil temperature and intake air temperature.

[0018] In one alternative of the first aspect, a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is higher than the upper temperature limit, the power of the cooling system of the diesel engine is adjusted and an alarm signal is issued.

[0019] In one alternative of the first aspect, a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is lower than the lower limit, the preheating device of the diesel engine is adjusted to adjust the oil temperature and the intake air temperature of the diesel engine.

[0020] And / or, prompting an increase in the diesel engine's preheating time.

[0021] Secondly, embodiments of this application also provide a diesel engine control device, comprising:

[0022] The information acquisition unit is used to collect the operating condition data of the diesel engine and the ambient temperature in real time;

[0023] The control unit is used to adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature.

[0024] An execution unit is used to adjust the operating conditions of the diesel engine based on the adjusted control parameters.

[0025] Thirdly, embodiments of this application also provide an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the diesel engine control methods provided in the first aspect.

[0026] Fourthly, this application also provides a non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, when the computer program is executed by a processor, it implements the steps of any of the diesel engine control methods provided in the first aspect.

[0027] The beneficial effects of the technical solutions provided in some embodiments of this application include at least the following:

[0028] The diesel engine control device provided in this application collects signals such as diesel engine speed, oil pressure, and oil temperature. By analyzing the collected information, it further controls the preheating, starting, and speed of the diesel engine in a targeted manner, thereby adapting to harsh environments such as extreme cold, high heat, and high humidity. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a schematic flowchart of a diesel engine control method according to an embodiment of this application;

[0031] Figure 2 This is a schematic diagram of the structure of a diesel engine control device provided in an embodiment of this application;

[0032] Figure 3 This is a schematic diagram of the structure of the electronic device provided in the embodiments of this application. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0034] The terms "comprising" and "having," and any variations thereof, in the specification, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or modules is not limited to the steps or modules listed, but may optionally include steps or modules not listed, or may optionally include other steps or modules inherent to such process, method, product, or apparatus.

[0035] It should be noted that the terms "first" and "second" used in this application are merely to distinguish similar objects and do not represent a specific ordering of the objects. It is understood that "first" and "second" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first" and "second" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those described or illustrated herein.

[0036] Please refer to the following. Figure 1 This application provides an exemplary embodiment of a diesel engine control method, comprising the following steps:

[0037] Real-time acquisition of operating condition data and ambient temperature of the diesel engine;

[0038] Adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature;

[0039] The operating conditions of the diesel engine are adjusted based on the adjusted control parameters.

[0040] Specifically, diesel engine operating condition data can be collected through the diesel engine's information acquisition circuit, ambient temperature data can be obtained through temperature sensors or thermocouples, and temperature data can also be obtained directly through networks, mobile devices, etc.

[0041] Optionally, the operating condition data includes diesel engine power, diesel engine speed, combustion chamber temperature, fuel consumption, and oil temperature.

[0042] Specifically, the control parameters include, but are not limited to, cooling system power, preheating time, intake air preheating, fuel preheating, and diesel atomization degree. The corresponding control parameters can be adjusted adaptively according to the corresponding actuator, such as controlling the injection quantity and diesel atomization degree by controlling the injector opening.

[0043] Optionally, the thermal efficiency of the diesel engine can be calculated based on the ambient temperature, the combustion chamber temperature, and the fuel consumption.

[0044] Specifically, adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes:

[0045] If the thermal efficiency is lower than the thermal efficiency threshold, calculate the difference between the thermal efficiency and the thermal efficiency threshold, and generate a temperature adjustment coefficient based on the standard temperature corresponding to the thermal efficiency threshold and the ambient temperature.

[0046] The preheating device of the diesel engine is adjusted based on the temperature adjustment coefficient, and the oil temperature and the intake air temperature are adjusted through the preheating device.

[0047] Specifically, adjusting various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes:

[0048] If the ambient temperature is below the temperature threshold, the diesel engine speed and combustion chamber temperature are acquired in real time.

[0049] If the real-time diesel engine speed is lower than the diesel engine starting speed threshold and the combustion chamber temperature is lower than the diesel compression ignition temperature, adjust the diesel engine preheating device to adjust the diesel engine oil temperature and intake air temperature.

[0050] Understandably, the temperature threshold depends on the quality of the fuel and the power of the diesel engine, but this invention does not limit this.

[0051] Optionally, a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is higher than the upper temperature limit, the power of the diesel engine's cooling system is adjusted, and an alarm signal is issued.

[0052] The first temperature coefficient can be calculated by weighting ambient temperature, combustion chamber temperature, oil temperature and cooling water temperature, and the power of the cooling system can be increased accordingly based on the first temperature coefficient.

[0053] If the diesel engine operates at high temperatures for an extended period, an alarm will be issued, which may indicate insufficient coolant or excessively high coolant temperature.

[0054] Optionally, a first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is lower than the lower limit, the preheating device of the diesel engine is adjusted to adjust the oil temperature and the intake air temperature of the diesel engine.

[0055] And / or, prompting an increase in the diesel engine's preheating time;

[0056] The first temperature coefficient can be calculated based on the weighted average of ambient temperature, combustion chamber temperature, oil temperature and cooling water temperature. If the obtained first temperature coefficient is lower than the lower limit, the temperature is low and the preheating device of the diesel engine needs to be adjusted, including but not limited to increasing the warm-up time and heating the fuel.

[0057] It can prompt users to extend the standby time of the diesel engine until the temperature is higher than the lower limit of the temperature range.

[0058] The following are apparatus embodiments of this application, which can be used to execute the method embodiments of this application. For details not disclosed in the apparatus embodiments of this application, please refer to the method embodiments of this application.

[0059] Please see below. Figure 2 The image shows a schematic diagram of a diesel engine control device provided in an exemplary embodiment of this application. The device includes:

[0060] The information acquisition unit is used to collect the operating condition data of the diesel engine and the ambient temperature in real time;

[0061] The control unit is used to adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature.

[0062] An execution unit is used to adjust the operating conditions of the diesel engine based on the adjusted control parameters.

[0063] Specifically, embodiments of this application also include:

[0064] The first terminal of the power supply circuit is connected to the first terminal of the control circuit, the second terminal is connected to the first terminal of the information acquisition circuit, and the third terminal is connected to the first terminal of the execution circuit. The second terminal of the control circuit is connected to the second terminal of the information acquisition circuit, and the third terminal of the control circuit is connected to the second terminal of the execution circuit.

[0065] The power supply circuit uses a wide input voltage range power module from Xinle Energy, with an input voltage range of 9V to 36V, capable of adapting to changes in battery voltage during diesel engine startup. The output voltage is 5V. This power module incorporates a filter circuit, output overcurrent protection, and short-circuit protection circuit. The DSP requires both 1.9V and 3.3V power supplies, which can be achieved using the LDO chip LPS70302 from the 771 Institute. This chip has an input voltage range of 2.7V to 6V and two independent outputs: the first output, VOUT1, has a voltage of 3.3V and a rated current of 1A; the second output, VOUT2, has a voltage of 1.9V and a rated current of 2A. This meets the requirements of the control circuit, information acquisition circuit, and execution circuit. To ensure the safety of the control circuit, a rectifier diode is added to the power supply circuit input, primarily to suppress external transient interference and also to prevent reverse polarity connection. The power supply circuit also includes input undervoltage protection, input overvoltage protection, overtemperature protection, output overvoltage protection, output overcurrent protection, and output short-circuit protection.

[0066] The control circuit processor uses the JDSPF28335 DSP chip from the 58th Research Institute of China Electronics Technology Group Corporation (CETC). This chip is based on CMOS technology, has a main frequency of up to 150MHz, and features a high-performance 32-bit CPU and Harvard bus architecture, 512KB flash memory and 68KB RAM. It has a 6-channel DMA processor, 16-bit / 32-bit external interfaces, 18-channel PWM output, 6-channel event capture input, 16-channel timers, 16-channel 12-bit A / D converter, 2-channel McBSP, 1-channel I2C, 3-channel SCI, 1-channel SPI, 2-channel CAN, and 1-channel 16-bit / 32-bit external memory bus, among other peripheral interfaces. It also has a 12-bit ADC analog-to-digital converter with built-in sample-and-hold circuitry and 16 input channels, which greatly simplifies the hardware design and meets the requirements of diesel engine control devices.

[0067] In this embodiment, the processor reset is achieved via power-on reset using the Guowei SM708S power monitoring chip. This chip is suitable for 5V or 3V power supply systems, with a typical reset threshold voltage of 2.93V and a reset delay time of 200ms, meeting the DSP's reset requirements. This circuit also implements the power-on reset function for the external FLASH memory. The data storage circuit stores the speed, oil pressure, oil temperature, and oil pressure and oil temperature alarm information collected by the processor. The latest data automatically overwrites the oldest data, and overwriting automatically stops in case of a fault. The stored data can be read from the debugging computer or host computer. The storage circuit uses a Guowei SM29LV160 FLASH memory with a capacity of 16MB.

[0068] The information acquisition circuit includes the acquisition of diesel engine speed, oil pressure, water temperature, oil pressure alarm signal, water temperature alarm signal, and preheating information. Diesel engine speed acquisition uses an OC322F optocoupler from the 771 Institute for isolation. When the input signal is high, the optocoupler input is on, and the output signal is low, sent to the DSP's I / O port; conversely, when the input is low, the signal sent to the I / O port is high. The DSP statistically analyzes the number of high-low signal transitions to calculate the diesel engine speed. Diesel engine oil pressure and water temperature signal acquisition uses an FX620 precision instrument amplifier from Factory 4433. The FX620 is a low-power, high-precision instrument amplifier that allows setting the amplification factor using only one external resistor, suitable for circuit designs with high resistance values ​​and low power supply voltages, and produces extremely low noise and drift. The diesel engine oil pressure alarm signal, water temperature alarm signal, and preheating signal are connected to the DSP's I / O port after isolation via optocouplers.

[0069] The execution circuit includes diesel engine preheating control, diesel engine start control, and electronic fuel injection pump control. Diesel engine preheating control and diesel engine start control are implemented through contactors, while electronic fuel injection pump control is implemented through solid-state relays.

[0070] This invention provides a diesel engine control device that collects signals such as engine speed, oil pressure, and oil temperature. The control circuit analyzes the collected information and, through the execution circuit, controls the diesel engine's preheating, starting, and speed. The diesel engine control device provided by this invention can adapt to harsh environments such as extreme cold, high heat, and high humidity.

[0071] This device can be implemented as all or part of the diesel engine control terminal through software, hardware, or a combination of both, or it can be integrated as an independent module into the diesel engine control unit.

[0072] It should be noted that the diesel engine control device provided in the above embodiments is only illustrated by the division of the above functional modules when executing the diesel engine control method. In practical applications, the above functions can be assigned to different functional modules as needed, that is, the internal structure of the equipment can be divided into different functional modules to complete all or part of the functions described above. In addition, the device provided in the above embodiments and the diesel engine control method embodiments belong to the same concept, and its implementation process can be found in the method embodiments, which will not be repeated here.

[0073] This application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the methods described above.

[0074] Please see Figure 3 This is a structural block diagram of an electronic device provided in an embodiment of this application.

[0075] like Figure 3 As shown, the electronic device 300 includes a processor 301 and a memory 302.

[0076] In this embodiment, the processor 301 is the control center of the computer system, and can be a processor of a physical machine or a processor of a virtual machine. The processor 301 may include one or more processing cores, such as a 4-core processor or an 8-core processor. The processor 301 can be implemented using at least one hardware form selected from DSP (Digital Signal Processing), FPGA (Field-Programmable Gate Array), and PLA (Programmable Logic Array).

[0077] Processor 301 may also include a main processor and a coprocessor. The main processor is a processor used to process data in the wake-up state, also known as a CPU (Central Processing Unit). The coprocessor is a low-power processor used to process data in the standby state.

[0078] Memory 302 may include one or more computer-readable storage media, which may be non-transitory. Memory 302 may also include high-speed random access memory and non-volatile memory, such as one or more disk storage devices or flash memory devices. In some embodiments of this application, the non-transitory computer-readable storage media in memory 302 is used to store at least one instruction, which is executed by processor 301 to implement the method in the embodiments of this application.

[0079] In some embodiments, the electronic device 300 further includes a peripheral device interface 303 and at least one peripheral device. The processor 301, memory 302, and peripheral device interface 303 can be connected via a bus or signal line. Various peripheral devices can be connected to peripheral device interface 303 via a bus, signal line, or circuit board. Specifically, the peripheral devices include: the display screen 304, camera 305, and audio circuitry 306. Peripheral device interface 303 can be used to connect at least one I / O (Input / Output) related peripheral device to processor 301 and memory 302.

[0080] In some embodiments of this application, the processor 301, memory 302, and peripheral device interface 303 are integrated on the same chip or circuit board; in other embodiments of this application, any one or two of the processor 301, memory 302, and peripheral device interface 303 can be implemented on separate chips or circuit boards. This application does not specifically limit the implementation in this regard.

[0081] Display screen 304 is used to display a user interface (UI). This UI may include graphics, text, icons, videos, and any combination thereof. When display screen 304 is a touch display screen, it also has the ability to collect touch signals on or above its surface. These touch signals can be input as control signals to processor 301 for processing. In this case, display screen 304 can also be used to provide virtual buttons and / or a virtual keyboard, also known as soft buttons and / or a soft keyboard.

[0082] In some embodiments of this application, there may be one display screen 304, disposed on the front panel of the electronic device 300; in other embodiments, there may be at least two display screens 304, disposed on different surfaces of the electronic device 300 or in a folded design; in still other embodiments, the display screen 304 may be a flexible display screen, disposed on a curved or folded surface of the electronic device 300. Furthermore, the display screen 304 may be configured as a non-rectangular irregular shape, i.e., a non-rectangular screen. The display screen 304 may be made of materials such as LCD (Liquid Crystal Display) or OLED (Organic Light-Emitting Diode).

[0083] Camera 305 is used to capture images or videos. Optionally, camera 305 includes a front-facing camera and a rear-facing camera. Typically, the front-facing camera is located on the front panel of the electronic device, and the rear-facing camera is located on the back of the electronic device. In some embodiments, there are at least two rear-facing cameras, which are any one of a main camera, a depth-sensing camera, a wide-angle camera, and a telephoto camera, to achieve background blurring by fusion of the main camera and the depth-sensing camera, panoramic shooting by fusion of the main camera and the wide-angle camera, VR (Virtual Reality) shooting, or other fusion shooting functions. In some embodiments of this application, camera 305 may also include a flash. The flash can be a single-color temperature flash or a dual-color temperature flash. A dual-color temperature flash refers to a combination of a warm light flash and a cool light flash, which can be used for light compensation at different color temperatures.

[0084] The audio circuit 306 may include a microphone and a speaker. The microphone is used to collect sound waves from the user and the environment, and convert the sound waves into electrical signals that are input to the processor 301 for processing. For stereo acquisition or sound reduction purposes, there may be multiple microphones, which are respectively located in different parts of the electronic device 300. The microphone may also be an array microphone or an omnidirectional acquisition microphone.

[0085] Power supply 307 is used to supply power to various components in electronic device 300. Power supply 307 can be alternating current, direct current, a disposable battery, or a rechargeable battery. When power supply 307 includes a rechargeable battery, the rechargeable battery can be a wired rechargeable battery or a wireless rechargeable battery. A wired rechargeable battery is a battery that is charged via a wired line, while a wireless rechargeable battery is a battery that is charged via a wireless coil. The rechargeable battery can also be used to support fast charging technology.

[0086] The electronic device structural block diagram shown in the embodiments of this application does not constitute a limitation on the electronic device 300. The electronic device 300 may include more or fewer components than shown, or combine certain components, or use different component arrangements.

[0087] This application also provides a computer-readable storage medium storing a computer program thereon, which, when executed by a processor, implements the steps of the methods in any of the foregoing embodiments. The computer-readable storage medium may include, but is not limited to, any type of disk, including floppy disks, optical disks, DVDs, CD-ROMs, microdrives, as well as magneto-optical disks, ROMs, RAMs, EPROMs, EEPROMs, DRAMs, VRAMs, flash memory devices, magnetic cards or optical cards, nanosystems (including molecular memory ICs), or any type of medium or device suitable for storing instructions and / or data.

[0088] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the parts that contribute to the related technology, can be embodied in the form of software products. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0089] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A diesel engine control method, characterized in that, include: Real-time acquisition of operating condition data and ambient temperature of the diesel engine; Adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature; The operating conditions of the diesel engine are adjusted based on the adjusted control parameters. The operating condition data includes diesel engine power, diesel engine speed, combustion chamber temperature, fuel consumption, and oil temperature; The thermal efficiency of the diesel engine is calculated based on the ambient temperature, the combustion chamber temperature, and the fuel consumption. The adjustment of various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes: If the thermal efficiency is lower than the thermal efficiency threshold, calculate the difference between the thermal efficiency and the thermal efficiency threshold, and generate a temperature adjustment coefficient based on the standard temperature corresponding to the thermal efficiency threshold and the ambient temperature. The preheating device of the diesel engine is adjusted based on the temperature adjustment coefficient, and the oil temperature and intake air temperature are adjusted through the preheating device.

2. The method according to claim 1, characterized in that, The adjustment of various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes: If the ambient temperature is below the temperature threshold, the diesel engine speed and combustion chamber temperature are acquired in real time. If the real-time diesel engine speed is lower than the diesel engine starting speed threshold and the combustion chamber temperature is lower than the diesel compression ignition temperature, the diesel engine preheating device is adjusted to adjust the diesel engine oil temperature and intake air temperature.

3. The method according to claim 1, characterized in that, A first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is higher than the upper temperature limit, the power of the diesel engine's cooling system is adjusted, and an alarm signal is issued.

4. The method according to claim 1, characterized in that, A first temperature coefficient is calculated based on the ambient temperature, the combustion chamber temperature, the oil temperature, and the cooling water temperature. If the first temperature coefficient is lower than the lower limit, the preheating device of the diesel engine is adjusted to adjust the oil temperature and the intake air temperature of the diesel engine. And / or, prompting an increase in the diesel engine's preheating time.

5. A diesel engine control device, characterized in that, include: The information acquisition unit is used to collect the operating condition data of the diesel engine and the ambient temperature in real time; The control unit is used to adjust various control parameters of the diesel engine based on the operating condition data and the ambient temperature. An execution unit is used to adjust the operating conditions of the diesel engine based on the adjusted control parameters. The operating condition data includes diesel engine power, diesel engine speed, combustion chamber temperature, fuel consumption, and oil temperature; The thermal efficiency of the diesel engine is calculated based on the ambient temperature, the combustion chamber temperature, and the fuel consumption. The adjustment of various control parameters of the diesel engine based on the operating condition data and the ambient temperature includes: If the thermal efficiency is lower than the thermal efficiency threshold, calculate the difference between the thermal efficiency and the thermal efficiency threshold, and generate a temperature adjustment coefficient based on the standard temperature corresponding to the thermal efficiency threshold and the ambient temperature. The preheating device of the diesel engine is adjusted based on the temperature adjustment coefficient, and the oil temperature and intake air temperature are adjusted through the preheating device.

6. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method as described in any one of claims 1 to 4.

7. A non-transitory computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by a processor, it implements the steps of the method as described in any one of claims 1 to 4.

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