Control method and control device for water content of diesel oil of engine and vehicle

Abstract

The invention provides an engine diesel oil water content control method and device and a vehicle, an engine communicates with a diesel oil outlet pipe, a fuel oil water content sensor is installed in the diesel oil outlet pipe, the fuel oil water content sensor is used for detecting the water content in engine diesel oil, and the method comprises the steps that the full scale value and the reference value of the diesel oil water content are obtained, the diesel oil water content in the diesel oil outlet pipe is detected in real time through a fuel oil water content sensor, and a detection value is obtained; when the detection value is larger than the reference value and smaller than or equal to the full scale value, first early warning information is sent out; and when the detection value is larger than the full scale value, second early warning information is sent out, and the torque of the engine is controlled to be reduced. The method solves the problems that in the prior art, the drainage period needs to be calculated according to the engine running mileage, and whether drainage is separated or not is manually judged through information such as the engine running mileage, so that engine combustion is poor, and faults occur.

Description

[0001] The present invention claims the priority of the Chinese patent application filed with the Chinese Patent Office on December 22, 2023, with application number 202311793148.0 and application name “Method, control device and vehicle for controlling water content of engine diesel”, the entire contents of which are incorporated by reference in the present invention. Technical Field

[0002] The present invention relates to the technical field of engines, and in particular to a method for controlling the water content of diesel fuel in an engine, a control device, a computer-readable storage medium and a vehicle. Background Art

[0003] Due to the harsh and special working environment of truckloads and the uneven quality of diesel oil in the market, the diesel oil quality of the engine cannot be guaranteed when drivers increase their freight profits. The damage to the whole machine parts caused by the high water content in diesel that cannot be separated in time during the operation of the National VI emission vehicle will seriously affect the performance and reliability of the whole engine. Since the truckload mileage, load, and driving habits can affect the working state of the engine, the diesel oil quality in the market is uneven, the oil quality is poor when the engine is running, there is a problem of poor engine combustion, and the engine fails to achieve optimal performance. Once this problem occurs, it will cause safety hazards such as damage to the engine fuel system parts or the engine cannot run.

[0004] At present, the separation of water in diesel in vehicle engines is based on the calculation of drainage cycle according to the engine mileage, and the separation and drainage are manually determined based on information such as the engine mileage. This separation and drainage method does not take into account problems that may exist under special circumstances, and does not take into account factors such as diesel quality. For example, if the engine mileage is short, the working environment is harsh, and the diesel quality is poor, the mileage and time setting methods are very likely to cause poor engine combustion and untimely maintenance. Once this problem occurs, it will cause safety hazards such as reduced reliability of the entire machine. Summary of the invention

[0005] The main purpose of the present application is to provide a method for controlling the water content of engine diesel, a control device, a computer-readable storage medium and a vehicle, so as to at least solve the problem in the prior art that it is necessary to calculate the drainage cycle based on the engine mileage, and to manually judge whether to separate the drainage based on information such as the engine mileage, which leads to poor engine combustion and malfunction.

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for controlling the water content of engine diesel is provided, wherein the engine is connected to a diesel oil outlet pipe, a fuel water content sensor is installed inside the diesel oil outlet pipe, and the fuel water content sensor is used to detect the water content in the engine diesel, and the method comprises: obtaining a full value and a reference value of the diesel water content, and detecting the diesel water content in the diesel oil outlet pipe in real time by the fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the diesel water content of the diesel with qualified quality, and the full value is the maximum value of the diesel water content when the engine is running without risk, and the diesel water content is the water content in the diesel; when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment; when the detection value is greater than the full value, a second warning message is issued and the torque of the engine is controlled to be reduced; wherein the second warning message is used to prompt the engine to have a failure risk.

[0007] Optionally, obtaining the full value and reference value of the diesel includes: obtaining multiple diesel samples and operating condition data of the engine, the operating condition data including injection amount, rotation speed and torque, the diesel water content of the diesel samples being different; injecting the multiple diesel samples into the engine for testing in order of the diesel water content from low to high, the diesel samples corresponding to the tests one by one; in each test, adjusting part of the operating condition data multiple times within a preset range of each operating condition data until any of the operating condition data of the current test does not meet the corresponding preset range, determining the diesel sample corresponding to the previous test as the target diesel sample, and determining the diesel water content of the target diesel sample as the reference value, the preset range including the injection amount being less than or equal to the injection amount threshold, the rotation speed being greater than or equal to the rotation speed threshold and the torque being greater than or equal to the torque threshold; when the operating condition data meets the preset range, adding water to the target diesel sample until any of the operating condition data does not meet the preset range, detecting the diesel water content in the target diesel sample and determining it as the full value.

[0008] Optionally, after the water content of diesel in the diesel oil outlet pipe is detected in real time by the fuel water content sensor to obtain a detection value, the method further comprises: when the detection value is less than or equal to the reference value, determining that the engine is operating normally.

[0009] Optionally, an oil-water separation device is located on the diesel oil outlet pipe, and the oil-water separation device is used to separate oil and water from the diesel in the diesel oil outlet pipe. The oil-water separation device is connected to a filtered water discharge pipeline, and a solenoid valve is arranged on the filtered water discharge pipeline, and the solenoid valve is used to control the on-off of the filtered water discharge pipeline. After issuing a first warning message, the method further includes: responding to a selection operation of the driver, and the selection operation includes manual drainage and automatic drainage; when the selection operation is the manual drainage and the solenoid valve has been manually opened, the water content of the diesel is detected in real time by the fuel water content sensor; in the diesel water content When the water content of diesel is less than or equal to the reference value, a first prompt message is issued, and the first prompt message is used to prompt that the water content of diesel is within the set limit and the solenoid valve can be closed; when the selected operation is the automatic drainage, the first warning message is issued multiple times to control the opening of the solenoid valve to perform oil-water separation and drainage treatment and to detect the water content of diesel in real time through the fuel water content sensor; when the water content of diesel is less than or equal to the reference value, a second prompt message is issued and the solenoid valve is controlled to be closed, and the second prompt message is used to prompt that the water content of diesel is within the set limit and the solenoid valve has been closed.

[0010] Optionally, after issuing the second warning message and controlling to reduce the torque of the engine, the method further includes: controlling to open the solenoid valve to perform oil-water separation and drainage treatment and detecting the diesel water content in real time; when the diesel water content is less than or equal to the reference value, issuing a third prompt message, wherein the third prompt message is used to prompt that the oil-water separation and drainage treatment is fault-free and the diesel water content is within the set limit range; when the time of the oil-water separation and drainage treatment reaches a predetermined time and the diesel water content is greater than the reference value, issuing an alarm message, wherein the alarm message prompts that a fault has occurred in the oil-water separation and drainage treatment.

[0011] Optionally, after obtaining the full value and reference value of the diesel water content, the method further includes: establishing an inverse engine MAP diagram based on the diesel water content and the speed and the torque in the operating condition data, wherein the inverse engine MAP diagram is a surface diagram of the maximum diesel water content for safe operation of the engine in a three-dimensional coordinate system, wherein the horizontal axis of the three-dimensional coordinate system is the speed, the vertical axis of the three-dimensional coordinate system is the torque, and the vertical axis of the three-dimensional coordinate system is the diesel water content, and is used to represent the performance indicators of the engine under different operating condition data.

[0012] Optionally, the oil-water separation device is connected to a filtered water discharge pipeline, and a solenoid valve is arranged on the filtered water discharge pipeline. After establishing the inverse engine MAP diagram, the method further includes: obtaining multiple historical speeds and multiple historical torques of the engine, and determining a common operating condition area of ​​the engine, wherein the common operating condition area is the operating range of the speed and the torque when the engine is in risk-free operation; querying the inverse engine MAP diagram based on the common operating condition area to obtain a calibrated water content of the engine; when the speed and the torque of the engine are in the common operating condition area, detecting a target water content of the diesel water content by using the fuel water content sensor; when the water content difference is greater than a difference threshold, controlling the opening of the solenoid valve to perform oil-water separation and drainage treatment, wherein the water content difference is the difference between the target water content and the calibrated water content.

[0013] According to another aspect of the present application, a control device for the water content of engine diesel is provided, wherein the engine is connected to a diesel oil outlet pipe, a fuel water content sensor is installed inside the diesel oil outlet pipe, and the fuel water content sensor is used to detect the water content in the engine diesel, and the device comprises: a first acquisition unit, used to acquire a full value and a reference value of the diesel water content, and detect the diesel water content in the diesel oil outlet pipe in real time through the fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the diesel water content of the diesel of qualified quality, and the full value is the maximum value of the diesel water content when the engine is running without risk, and the diesel water content is the water content in the engine diesel; a first issuing unit, used to issue a first warning message when the detection value is greater than the reference value and less than or equal to the full value; wherein the first warning message is used to prompt the oil-water separation and drainage treatment; a second issuing unit, used to issue a second warning message and control the reduction of the torque of the engine when the detection value is greater than the full value; wherein the second warning message is used to prompt the engine to have a failure risk.

[0014] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute any one of the methods described.

[0015] According to another aspect of the present application, a vehicle is provided, comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of the described methods.

[0016] Applying the technical solution of the present application, in the control method of the water content of the diesel oil in the engine, first, the full value and the reference value of the water content of the diesel oil are obtained, and the water content of the diesel oil in the diesel oil outlet pipe is detected in real time by the fuel water content sensor to obtain the detection value, the reference value is the maximum value of the water content of the diesel oil of qualified quality diesel oil, the full value is the maximum value of the water content of the diesel oil when the engine is running without risk, and the water content of the diesel oil is the water content in the diesel oil; then, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued, and the first warning message is used to prompt the oil-water separation and drainage treatment; finally, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced, and the second warning message is used to prompt the engine to have a risk of failure. The present application detects the water content of the diesel oil in real time and compares it with each set value. When the water content of the diesel oil is greater than the full value, a warning is issued to indicate that the water content of the diesel oil is seriously exceeded, and when the water content of the diesel oil is less than or equal to the full value and greater than the reference value, a warning is issued to indicate that the water content of the diesel oil exceeds the set limit and needs to be drained in time. The present application solves the problem in the prior art that it is necessary to calculate the drainage cycle based on the engine running mileage, and to manually judge whether to separate the drainage based on information such as the engine running mileage, which may lead to poor engine combustion and malfunction. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A hardware structure block diagram of a mobile terminal for executing a method for controlling water content in engine diesel provided in an embodiment of the present application is shown;

[0018] Figure 2 A schematic flow chart of a method for controlling water content in engine diesel provided in accordance with an embodiment of the present application is shown;

[0019] Figure 3 A schematic flow chart of a method for determining a full value and a reference value of water content in diesel fuel of an engine provided in accordance with an embodiment of the present application is shown;

[0020] Figure 4 A schematic diagram of a process for oil-water separation and drainage treatment provided according to an embodiment of the present application is shown;

[0021] Figure 5 A schematic diagram showing a process for detecting water content in engine diesel provided in accordance with an embodiment of the present application is shown;

[0022] Figure 6 A structural block diagram of a device for controlling water content in engine diesel provided according to an embodiment of the present application is shown.

[0023] The above drawings include the following reference numerals:

[0024] 102. Processor; 104. Memory; 106. Transmission device; 108. Input / output device; 1. Diesel filter element; 2. ECU; 3. Fuel water content sensor; 4. Diesel filter element base; 5. Diesel fuel inlet pipe; 6. Diesel fuel outlet pipe; 7. Fuel water content sensor pipeline; 8. Oil-water separation area; 9. Solenoid valve; 10. Filtered water discharge pipeline; 11. Display screen. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present application described here. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] For the convenience of description, some nouns or terms involved in the embodiments of the present application are explained below:

[0029] Fuel water content sensor: The fuel water content sensor is made based on the principle of water conductivity and is used to detect the water content in diesel engine fuel;

[0030] The oil-water separator is a type of fuel filter. Its main function is to remove water from the fuel to reduce injector failures and extend the service life of the engine.

[0031] As introduced in the background technology, in the prior art, the separation of water in the diesel of the whole vehicle engine is to calculate the drainage cycle according to the engine running mileage, and to manually judge whether to separate and drain the water based on the information such as the engine running mileage. This separation and drainage method does not take into account the problems that may exist under special circumstances, and does not take into account factors such as diesel quality. In order to solve the problem that the drainage cycle needs to be calculated according to the engine running mileage in the prior art, and the manual judgment of whether to separate and drain the water based on the information such as the engine running mileage leads to poor engine combustion and malfunction, the embodiments of the present application provide a control method, a control device, a computer-readable storage medium and a vehicle for the water content of the diesel of the engine.

[0032] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0033] The method embodiments provided in the embodiments of the present application can be executed in a mobile terminal, a computer terminal or a similar computing device. Taking running on a mobile terminal as an example, Figure 1 FIG. 1 is a hardware structure block diagram of a mobile terminal of a method for controlling water content in engine diesel according to an embodiment of the present invention. Figure 1 As shown, the mobile terminal may include one or more ( Figure 1 Only one is shown in the figure) a processor 102 (the processor 102 may include but is not limited to a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input / output device 108 for communication functions. It can be understood by those skilled in the art that Figure 1 The structure shown is only for illustration and does not limit the structure of the mobile terminal. Figure 1 More or fewer components as shown, or with Figure 1 Different configurations shown.

[0034] The memory 104 can be used to store computer programs, for example, software programs and modules of application software, such as the computer program corresponding to the display method of device information in the embodiment of the present invention. The processor 102 executes various functional applications and data processing by running the computer program stored in the memory 104, that is, the above method is implemented. The memory 104 may include a high-speed random access memory, and may also include a non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include a memory remotely arranged relative to the processor 102, and these remote memories can be connected to the mobile terminal via a network. Examples of the above-mentioned network include but are not limited to the Internet, an intranet, a local area network, a mobile communication network, and a combination thereof. The transmission device 106 is used to receive or send data via a network. The above-mentioned specific examples of the network may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (Network Interface Controller, referred to as NIC), which can be connected to other network devices through a base station so as to communicate with the Internet. In one example, the transmission device 106 may be a radio frequency (RF) module, which is used to communicate with the Internet wirelessly.

[0035] In this embodiment, a method for controlling the water content of engine diesel running on a mobile terminal, a computer terminal or a similar computing device is provided. It should be noted that the steps shown in the flowchart of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and although a logical order is shown in the flowchart, in some cases, the steps shown or described may be executed in an order different from that shown here.

[0036] Figure 2 FIG. 1 is a flow chart of a method for controlling the water content of engine diesel according to an embodiment of the present application. Figure 2 As shown, the method comprises the following steps:

[0037] Step S201, obtain the full value and reference value of the water content of diesel, and detect the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein, the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel.

[0038] Specifically, the full value and reference value of diesel water content are to ensure that the quality of diesel meets the standards and guarantee the normal operation of the engine. Excessive water content in diesel will affect the combustion efficiency, leading to problems such as reduced engine power, incomplete combustion and even corrosion, and in severe cases, will cause engine failure. By using a fuel water content sensor to detect the diesel water content in the diesel outlet pipe in real time, diesel quality problems can be discovered in a timely manner to avoid engine failure or damage caused by excessive water content in diesel.

[0039] Step S202, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation drainage process.

[0040] Specifically, when the detected value is greater than the reference value and less than or equal to the full value, it means that the water content in the diesel has exceeded the water content during normal operation of the engine, but there is no risk and does not affect the operation of the engine. It is still necessary to issue a warning message to prompt the need for oil-water separation and drainage treatment to avoid damage to the engine caused by moisture.

[0041] Step S203, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0042] Specifically, when the detected value is greater than the full value, it means that the water content of the diesel has seriously exceeded the water content during normal engine operation, that is, the engine is at risk of failure. At this time, a warning message is immediately sent to remind the engine of the risk of failure and reduce the engine torque to avoid the risk of engine failure and ensure the safe operation of the engine.

[0043] The above embodiment compares the real-time detected diesel water content with each set value, and issues a warning when the detected value is greater than the full value, indicating that the diesel water content is seriously exceeded, and issues a warning when the detected value is less than or equal to the full value and greater than the reference value, indicating that the diesel water content exceeds the set limit and that drainage treatment is required in a timely manner. This application solves the problem in the prior art that the drainage cycle needs to be calculated based on the engine mileage, and the engine mileage and other information are used to manually determine whether to separate the drainage, resulting in poor engine combustion and malfunction.

[0044] In order to enable those skilled in the art to more clearly understand the technical solution of the present application, the implementation process of the method for controlling the water content of engine diesel of the present application will be described in detail below in conjunction with specific embodiments.

[0045] In order to ensure the quality of diesel, in an optional implementation method, Figure 3 As shown, the above step S201 includes:

[0046] Step S2011, obtaining multiple diesel samples and engine operating data, the operating data including fuel injection amount, speed and torque, the diesel water content of the diesel samples is different.

[0047] Specifically, in order to determine the effect of water content in diesel on engine performance, the engine can operate normally under any operating data, and first obtain multiple diesel samples and engine operating data, each diesel sample has a different water content.

[0048] Step S2012, multiple diesel samples are injected into the engine in order of their water content from low to high for testing, and the diesel samples correspond to the tests one by one.

[0049] Specifically, a plurality of diesel samples were tested in order from low to high water content of the diesel.

[0050] Step S2013, in each test, some operating condition data are adjusted multiple times within the preset range of each operating condition data until any operating condition data of the current test does not meet the corresponding preset range, the diesel sample corresponding to the previous test is determined as the target diesel sample, and the diesel water content of the target diesel sample is determined as the reference value. The preset range includes the injection amount being less than or equal to the injection amount threshold, the speed being greater than or equal to the speed threshold, and the torque being greater than or equal to the torque threshold.

[0051] Specifically, multiple adjustments are made within the preset range of each operating condition data. If the operating condition data of a diesel sample is within the preset range after multiple adjustments, it means that the quality of the diesel sample is qualified. Then the next diesel sample test is carried out until any operating condition data of the current diesel sample does not meet the corresponding preset range. The diesel water content of the previous diesel sample of the current diesel sample is used as the baseline value, and the diesel sample is also used as the target diesel sample for subsequent tests.

[0052] Step S2014, when the operating condition data meets the preset range, water is added to the target diesel sample until any operating condition data does not meet the preset range, and the diesel water content in the target diesel sample is detected and determined as the full value.

[0053] Specifically, when the operating condition data meets the preset range, a certain amount of water is slowly added to the target diesel sample until any operating condition data fails to meet the preset range, indicating that the maximum acceptable water content within the preset range of the operating condition data is the diesel water content detected at this time, that is, the above-mentioned full-scale value.

[0054] In order to provide security and reliability, in an optional implementation method, after the above step S201, the method further includes:

[0055] Step S301: When the detection value is less than or equal to the reference value, it is determined that the engine is operating normally.

[0056] Specifically, the reference value is the maximum value of diesel water content for normal engine operation. If the detected value is less than or equal to the reference value, it means that the engine is operating normally. Determining that the engine is operating normally means that the system is operating normally without any faults or problems, which can provide safety and reliability assurance and ensure that the engine operates within the normal operating range.

[0057] In order to improve the efficiency and reliability of the engine, in an optional implementation method, after the above step S201, the method further includes:

[0058] Step S401, establish an inverse engine MAP diagram according to the diesel water content and the speed and torque in the operating condition data. The inverse engine MAP diagram is a surface diagram of the maximum diesel water content for safe operation of the engine in a three-dimensional coordinate system. The horizontal axis of the three-dimensional coordinate system is the speed, the vertical axis of the three-dimensional coordinate system is the torque, and the vertical axis of the three-dimensional coordinate system is the diesel water content, which is used to represent the performance indicators of the engine under different operating condition data.

[0059] Specifically, it is first necessary to collect engine operating data under different diesel water contents, including speed and torque. The collected diesel water content and operating data can be organized into a data table for subsequent processing and analysis. Using the diesel water content, speed and torque data in the data table, a three-dimensional surface graph of the inverse engine MAP diagram can be drawn using data visualization software or programming language. The horizontal axis is the speed, the vertical axis is the torque, and the vertical axis is the diesel water content. The performance indicators of the engine under different operating conditions are represented by drawing a surface graph. Through the MAP diagram, the impact of diesel water content on engine performance can be clearly seen, and the optimal operating point of the engine under different operating conditions can be found, which provides an important reference for the optimization design of the engine and improves the efficiency and reliability of the engine.

[0060] In order to further optimize the oil-water separation and drainage process and avoid the adverse effects of water in diesel on the engine, in an optional implementation method, after the above step S401, the method further includes:

[0061] Step S501, obtaining multiple historical speeds and multiple historical torques of the engine, and determining a common operating range of the engine, where the common operating range is a speed and torque operating range when the engine is in risk-free operation.

[0062] Specifically, the common operating condition area of ​​the engine is first obtained according to the historical working data of the engine, that is, the historical speed and the historical torque, and the range of the historical speed and the historical torque of the normal operation of the engine.

[0063] Step S502, querying the inverse engine MAP diagram based on the common operating condition area to obtain the calibrated water content of the engine.

[0064] Specifically, the water content of diesel in a common operating condition area, ie, the calibrated water content, is obtained by querying the inverse engine MAP diagram.

[0065] Step S503: When the engine speed and torque are in a normal operating range, a target water content of the diesel fuel is detected by a fuel water content sensor.

[0066] Specifically, when the engine is running in a normal operating range, the water content of the diesel fuel, ie, the target water content, is detected by a fuel water content sensor.

[0067] Step S504, when the water content difference is greater than the difference threshold, control the solenoid valve to open for oil-water separation and drainage processing, and the water content difference is the difference between the target water content and the calibrated water content.

[0068] Specifically, if the water content difference is greater than the difference threshold, it means that the water content is too different from the theoretical water content at this time, and it is necessary to control the opening of the solenoid valve to perform oil-water separation and drainage. This can ensure that the engine operates within a safe range and avoid the adverse effects of water in diesel on the engine, thereby improving the efficiency and reliability of the engine. The oil-water separation can be handled by an oil-water separator.

[0069] In order to improve the driving experience of the driver and ensure the driving safety of the driver, in an optional implementation method, after the above step S202, the method further includes:

[0070] Step S601, responding to a selection operation of the driver, the selection operation includes manual drainage and automatic drainage.

[0071] Specifically, through real-time monitoring and the issuance of prompt information, the driver can timely understand the water content of diesel and take corresponding operational measures. The driver can choose manual drainage and automatic drainage.

[0072] Step S602: When the selected operation is manual drainage and the solenoid valve has been manually opened, the water content of the diesel is detected in real time by the fuel water content sensor.

[0073] Specifically, if the driver chooses manual drainage, the solenoid valve is manually opened after the vehicle speed is reduced to zero and the vehicle stops. At the same time, the fuel water content sensor detects the water content of the diesel in real time.

[0074] Step S603: When the water content of the diesel is less than or equal to the reference value, a first prompt message is issued, and the first prompt message is used to prompt that the water content of the diesel is within the set limit range and the solenoid valve can be closed.

[0075] Specifically, when the water content of diesel is less than or equal to the reference value, it means that the engine is within the normal operating range. A prompt message is issued to remind the driver that the water content of diesel is within the set limit range and the driver can close the solenoid valve. The above set limit range is the interval range from zero to the reference value.

[0076] Step S604, when the operation is selected as automatic drainage, the first warning information is issued multiple times, the solenoid valve is controlled to open for oil-water separation and drainage processing, and the water content of diesel is detected in real time through the fuel water content sensor.

[0077] Specifically, when the operation is selected as automatic drainage, the first warning information is issued multiple times to remind the driver that drainage is required. The ECU controls the solenoid valve to automatically open for oil-water separation and drainage. At the same time, the fuel water content sensor is used to detect the water content of diesel in real time.

[0078] Step S605, when the water content of the diesel is less than or equal to the reference value, a second prompt message is issued and the solenoid valve is controlled to be closed. The second prompt message is used to prompt that the water content of the diesel is within the set limit range and the solenoid valve has been closed.

[0079] Specifically, when the water content of diesel is less than or equal to the reference value, it indicates that the engine is within the normal operating range, and a prompt message is issued to remind the driver that the water content of diesel is within the set limit range and the ECU has controlled the solenoid valve to be closed.

[0080] In order to improve the efficiency of monitoring and managing the engine operating status, in an optional implementation method, after the above step S203, the method further includes:

[0081] Step S701, control the opening of the solenoid valve to perform oil-water separation and drainage treatment and detect the water content of diesel in real time.

[0082] Specifically, when the water content in diesel is greater than the full value, it means that the water content in the diesel is seriously exceeded and there is a risk in the operation of the entire machine. The ECU immediately controls the opening of the solenoid valve to perform oil-water separation and drainage treatment and detects the water content in diesel in real time to ensure the normal operation of the engine, reduce the water content in diesel, and protect the equipment. At the same time, it can also improve the monitoring and management efficiency of the engine operating status and reduce damage to the engine caused by faults.

[0083] Step S702, when the water content of diesel is less than or equal to the reference value, a third prompt message is issued, the third prompt message is used to prompt that the oil-water separation and drainage treatment is fault-free and the water content of diesel is within the set limit range.

[0084] Specifically, when the water content of diesel is less than or equal to the reference value, it indicates that the oil-water separation and drainage process has no faults and the oil-water separation and drainage process has been completed.

[0085] Step S703, when the time of the oil-water separation and drainage treatment reaches a predetermined time and the water content of the diesel is greater than a reference value, an alarm message is issued, and the alarm message indicates that a failure has occurred in the oil-water separation and drainage treatment.

[0086] Specifically, when the time of the oil-water separation and drainage treatment reaches the predetermined time and the diesel water content is greater than the reference value, it means that the oil-water separation and drainage treatment has not been effectively treated. An alarm message will be immediately issued to remind the driver that the oil-water separation and drainage treatment has failed and a fault problem needs to be solved in time.

[0087] This embodiment relates to a specific method for controlling the water content of engine diesel, such as Figure 4 and Figure 5 As shown, the following steps are included:

[0088] Step S1: the diesel oil inlet pipe 5 is connected to the diesel filter base 4, the diesel oil enters the oil-water separation area 8 connected to the diesel filter base 4 through the diesel oil inlet pipe 5 to filter the water, and then passes through the diesel filter 1 to filter the impurities. After the treatment, the solenoid valve 9 is opened to discharge the water through the filtered water discharge pipeline 10, and the filtered diesel oil enters the engine through the diesel oil outlet pipe 6;

[0089] Step S2: The fuel water content sensor 3 detects the water content of diesel through the fuel water content sensor pipeline 7, and provides real-time detection data to the ECU 2. The ECU 2 makes a judgment and displays a corresponding color prompt light on the display screen 11 according to the detection value. For example, if the detection value is normal, it will display green; if the detection value is abnormal, it will display yellow; if the detection value is seriously exceeded, it will display red;

[0090] Step S3: Take corresponding measures according to the color of the warning light to ensure the operation of the engine. If the warning light is green, the engine is running normally; if the warning light is yellow, the driver is prompted to choose manual operation or automatic operation. If it is manual operation, the solenoid valve 9 is manually opened, and the diesel water content is detected in real time by the fuel water content sensor 3 until the detected value is normal. The driver manually closes the solenoid valve 9; if the warning light is red, the engine is running abnormally, and the engine torque is reduced first, and the engine is sent to a service station for repair and maintenance, or the driver manually operates it. If the fault still exists after manual operation, it is sent to a service station for repair and maintenance.

[0091] It should be noted that the steps shown in the flowcharts of the accompanying drawings can be executed in a computer system such as a set of computer executable instructions, and that, although a logical order is shown in the flowcharts, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0092] The embodiment of the present application also provides a control device for the water content of engine diesel. It should be noted that the control device for the water content of engine diesel in the embodiment of the present application can be used to execute the control method for the water content of engine diesel provided in the embodiment of the present application. The device is used to implement the above-mentioned embodiments and preferred implementation modes, and the descriptions that have been made will not be repeated. As used below, the term "module" can implement a combination of software and / or hardware for a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, the implementation of hardware, or a combination of software and hardware, is also possible and conceivable.

[0093] The following is an introduction to the control device for the water content of engine diesel provided in an embodiment of the present application.

[0094] Figure 6 is a structural block diagram of a control device for the water content of engine diesel according to an embodiment of the present application. Figure 6 As shown, the device comprises:

[0095] The first acquisition unit 100 is used to obtain the full value and the reference value of the water content of diesel, and detect the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel.

[0096] Specifically, the full scale value and reference value of the water content in diesel are obtained, wherein the full scale value is the maximum value of the water content in diesel when the engine is running without risk, and the reference value is the maximum value of the water content in diesel when the engine is running normally, indicating the maximum value of the water content in diesel of qualified quality. The water content in diesel in the diesel outlet pipe is detected in real time using a fuel water content sensor, which is the above-mentioned detection value.

[0097] The first issuing unit 200 is used to issue a first warning message when the detection value is greater than a reference value and less than or equal to a full-scale value; wherein the first warning message is used to prompt the oil-water separation drainage process.

[0098] Specifically, when the detected value is greater than the reference value and less than or equal to the full value, it means that the water content in the diesel has exceeded the water content during normal operation of the engine, but there is no risk and does not affect the operation of the engine. It is still necessary to issue a warning message to prompt the need for oil-water separation and drainage treatment to avoid damage to the engine caused by moisture.

[0099] The second issuing unit 300 issues a second warning message and controls to reduce the engine torque when the detection value is greater than the full value; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0100] Specifically, when the detected value is greater than the full value, it means that the water content of the diesel has seriously exceeded the water content during normal engine operation, that is, the engine is at risk of failure. At this time, a warning message is immediately sent to remind the engine of the risk of failure and reduce the engine torque to avoid the risk of engine failure and ensure the safe operation of the engine.

[0101] In this embodiment, by comparing the real-time detected diesel water content with each set value, an early warning is issued when the detected value is greater than the full value to indicate that the diesel water content is seriously exceeded, and an early warning is issued when the diesel water content is less than or equal to the full value and greater than the reference value to indicate that the diesel water content exceeds the set limit and drainage treatment is required in a timely manner. This application solves the problem in the prior art that the drainage cycle needs to be calculated based on the engine mileage, and the engine mileage and other information are used to manually determine whether to separate the drainage, resulting in poor engine combustion and malfunction.

[0102] In order to ensure the quality of diesel, in an optional implementation method, the first acquisition unit 100 includes:

[0103] The acquisition module acquires the operating data of multiple diesel samples and engines, the operating data including the injection amount, speed and torque, and the diesel water content of the diesel samples is different.

[0104] Specifically, in order to determine the effect of water content in diesel on engine performance, the engine can operate normally under any operating data, and first obtain multiple diesel samples and engine operating data, each diesel sample has a different water content.

[0105] The test module injects multiple diesel samples into the engine in order of their water content from low to high for testing, and the diesel samples correspond to the tests one by one.

[0106] Specifically, a plurality of diesel samples were tested in order from low to high water content of the diesel.

[0107] The first determination module adjusts part of the operating condition data multiple times within the preset range of each operating condition data in each test until any operating condition data of the current test does not meet the corresponding preset range, and determines the diesel sample corresponding to the previous test as the target diesel sample, and determines the diesel water content of the target diesel sample as the reference value. The preset range includes the injection amount being less than or equal to the injection amount threshold, the speed being greater than or equal to the speed threshold, and the torque being greater than or equal to the torque threshold.

[0108] Specifically, multiple adjustments are made within the preset range of each operating condition data. If the operating condition data of a diesel sample is within the preset range after multiple adjustments, it means that the quality of the diesel sample is qualified. Then the next diesel sample test is carried out until any operating condition data of the current diesel sample does not meet the corresponding preset range. The diesel water content of the previous diesel sample of the current diesel sample is used as the baseline value, and the diesel sample is also used as the target diesel sample for subsequent tests.

[0109] The second determination module, when the operating condition data meets the preset range, adds water to the target diesel sample until any operating condition data does not meet the preset range, detects the diesel water content in the target diesel sample and determines it as the full value.

[0110] Specifically, when the operating condition data meets the preset range, a certain amount of water is slowly added to the target diesel sample until any operating condition data fails to meet the preset range, indicating that the maximum acceptable water content within the preset range of the operating condition data is the diesel water content detected at this time, that is, the above-mentioned full-scale value.

[0111] In order to provide security and reliability, in an optional implementation method, the device also includes:

[0112] The first determination unit is used to detect the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor, and after obtaining the detection value, determine that the engine is running normally when the detection value is less than or equal to the reference value.

[0113] Specifically, the reference value is the maximum value of diesel water content for normal engine operation. If the detected value is less than or equal to the reference value, it means that the engine is operating normally. Determining that the engine is operating normally means that the system is operating normally without any faults or problems, which can provide safety and reliability assurance and ensure that the engine operates within the normal operating range.

[0114] In order to improve the efficiency and reliability of the engine, in an optional implementation method, the device also includes:

[0115] A unit is established for establishing an inverse engine MAP diagram according to the diesel water content and the speed and torque in the operating condition data after obtaining the full value and the reference value of the diesel water content. The inverse engine MAP diagram is a surface diagram of the maximum diesel water content for safe operation of the engine in a three-dimensional coordinate system. The horizontal axis of the three-dimensional coordinate system is the speed, the vertical axis of the three-dimensional coordinate system is the torque, and the vertical axis of the three-dimensional coordinate system is the diesel water content, which is used to represent the performance indicators of the engine under different operating condition data.

[0116] Specifically, it is first necessary to collect engine operating data under different diesel water contents, including speed and torque. The collected diesel water content and operating data can be organized into a data table for subsequent processing and analysis. Using the diesel water content, speed and torque data in the data table, a three-dimensional surface graph of the inverse engine MAP diagram can be drawn using data visualization software or programming language. The horizontal axis is the speed, the vertical axis is the torque, and the vertical axis is the diesel water content. The performance indicators of the engine under different operating conditions are represented by drawing a surface graph. Through the MAP diagram, the impact of diesel water content on engine performance can be clearly seen, and the optimal operating point of the engine under different operating conditions can be found, which provides an important reference for the optimization design of the engine and improves the efficiency and reliability of the engine.

[0117] In order to further optimize the oil-water separation drainage process and avoid the adverse effects of water in diesel on the engine, in an optional implementation method, the device also includes:

[0118] The second determination unit is used to obtain multiple historical speeds and multiple historical torques of the engine after establishing the inverse engine MAP diagram, and determine the common operating area of ​​the engine. The common operating area is the operating range of the speed and torque when the engine is in risk-free operation.

[0119] Specifically, the common operating condition area of ​​the engine is first obtained according to the historical working data of the engine, that is, the historical speed and the historical torque, and the range of the historical speed and the historical torque of the normal operation of the engine.

[0120] The query unit is used to query the inverse engine MAP diagram based on the common operating condition area to obtain the calibrated water content of the engine.

[0121] Specifically, the water content of diesel in a common operating condition area, ie, the calibrated water content, is obtained by querying the inverse engine MAP diagram.

[0122] The first detection unit is used to detect a target water content of the diesel fuel by using a fuel water content sensor when the engine speed and torque are in a common operating range.

[0123] Specifically, when the engine is running in a normal operating range, the water content of the diesel fuel, ie, the target water content, is detected by a fuel water content sensor.

[0124] The first control unit is used to control the opening of the solenoid valve to perform oil-water separation and drainage treatment when the water content difference is greater than the difference threshold, and the water content difference is the difference between the target water content and the calibrated water content.

[0125] Specifically, if the water content difference is greater than the difference threshold, it means that the water content is too different from the theoretical water content, and it is necessary to control the opening of the solenoid valve to perform oil-water separation and drainage. This can ensure that the engine operates within a safe range and avoid the adverse effects of water in diesel on the engine, thereby improving the efficiency and reliability of the engine.

[0126] In order to improve the driving experience of the driver and ensure the driving safety of the driver, in an optional implementation method, the device also includes:

[0127] The response unit is used to respond to the driver's selection operation after issuing the first warning information, and the selection operation includes manual drainage and automatic drainage.

[0128] Specifically, through real-time monitoring and the issuance of prompt information, the driver can timely understand the water content of diesel and take corresponding operational measures. The driver can choose manual drainage and automatic drainage.

[0129] The second detection unit is used to detect the water content of diesel in real time through the fuel water content sensor when the selected operation is manual drainage and the solenoid valve is manually opened.

[0130] Specifically, if the driver chooses manual drainage, the solenoid valve is manually opened after the vehicle speed is reduced to zero and the vehicle stops. At the same time, the fuel water content sensor detects the water content of the diesel in real time.

[0131] The third issuing unit is used to issue a first prompt message when the water content of the diesel is less than or equal to the reference value, and the first prompt message is used to prompt that the water content of the diesel is within the set limit range and the solenoid valve can be closed.

[0132] Specifically, when the water content of diesel is less than or equal to the reference value, it means that the engine is within the normal operating range. A prompt message is issued to remind the driver that the water content of diesel is within the set limit range and the driver can close the solenoid valve. The above set limit range is the interval range from zero to the reference value.

[0133] The second control unit is used to issue the first warning information multiple times when the operation is selected as automatic drainage, control the opening of the solenoid valve to perform oil-water separation and drainage processing, and detect the water content of diesel in real time through the fuel water content sensor.

[0134] Specifically, when the operation is selected as automatic drainage, the first warning information is issued multiple times to remind the driver that drainage is required. The ECU controls the solenoid valve to automatically open for oil-water separation and drainage. At the same time, the fuel water content sensor is used to detect the water content of diesel in real time.

[0135] The fourth issuing unit is used to issue a second prompt message and control the closing of the solenoid valve when the water content of the diesel is less than or equal to the reference value. The second prompt message is used to prompt that the water content of the diesel is within the set limit range and the solenoid valve has been closed.

[0136] Specifically, when the water content of diesel is less than or equal to the reference value, it indicates that the engine is within the normal operating range, and a prompt message is issued to remind the driver that the water content of diesel is within the set limit range and the ECU has controlled the solenoid valve to be closed.

[0137] In order to improve the efficiency of monitoring and managing the engine operating status, in an optional implementation method, the device also includes:

[0138] The third control unit is used to control the opening of the solenoid valve to perform oil-water separation and drainage treatment and detect the water content of diesel in real time after issuing the second warning information and controlling the reduction of the engine torque.

[0139] Specifically, when the water content in diesel is greater than the full value, it means that the water content in the diesel is seriously exceeded and there is a risk in the operation of the entire machine. The ECU immediately controls the opening of the solenoid valve to perform oil-water separation and drainage treatment and detects the water content in diesel in real time to ensure the normal operation of the engine, reduce the water content in diesel, and protect the equipment. At the same time, it can also improve the monitoring and management efficiency of the engine operating status and reduce damage to the engine caused by faults.

[0140] The fifth issuing unit issues a third prompt message when the water content of the diesel is less than or equal to the reference value. The third prompt message is used to prompt that there is no fault in the oil-water separation and drainage treatment and that the water content of the diesel is within the set limit range.

[0141] Specifically, when the water content of diesel is less than or equal to the reference value, it indicates that the oil-water separation and drainage process has no faults and the oil-water separation and drainage process has been completed.

[0142] The sixth issuing unit issues an alarm message when the oil-water separation and drainage treatment time reaches a predetermined time and the water content of the diesel is greater than a reference value, and the alarm message indicates that a failure occurs in the oil-water separation and drainage treatment.

[0143] Specifically, when the time of the oil-water separation and drainage treatment reaches the predetermined time and the diesel water content is greater than the reference value, it means that the oil-water separation and drainage treatment has not been effectively treated. An alarm message will be immediately issued to remind the driver that the oil-water separation and drainage treatment has failed and a fault problem needs to be solved in time.

[0144] The control device for the water content of diesel in the engine comprises a processor and a memory. The first acquisition unit, the first sending unit and the second sending unit are all stored in the memory as program units, and the processor executes the program units stored in the memory to realize the corresponding functions. The modules are all located in the same processor; or, the modules are located in different processors in any combination.

[0145] The processor includes a kernel, which retrieves the corresponding program unit from the memory. One or more kernels can be set, and the kernel parameters can be adjusted to solve the problem in the prior art that the drainage cycle needs to be calculated according to the engine running mileage, and the problem of artificially judging whether to separate the drainage based on the engine running mileage and other information leads to poor engine combustion and failure.

[0146] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory, such as read-only memory (ROM) or flash RAM, and the memory includes at least one memory chip.

[0147] An embodiment of the present invention provides a computer-readable storage medium, wherein the computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method for controlling the water content of the engine diesel.

[0148] Specifically, the method for controlling the water content of engine diesel includes:

[0149] Step S201, obtaining the full value and reference value of the water content of diesel, and detecting the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel;

[0150] Step S202, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment;

[0151] Step S203, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0152] An embodiment of the present invention provides a processor, and the processor is used to run a program, wherein the method for controlling the water content of diesel fuel in the engine is executed when the program is run.

[0153] Specifically, the method for controlling the water content of engine diesel includes:

[0154] Step S201, obtaining the full value and reference value of the water content of diesel, and detecting the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel;

[0155] Step S202, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment;

[0156] Step S203, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0157] An embodiment of the present invention provides a vehicle, the vehicle comprising a processor, a memory, and a program stored in the memory and executable on the processor, wherein when the processor executes the program, at least the following steps are implemented:

[0158] Step S201, obtaining the full value and reference value of the water content of diesel, and detecting the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel;

[0159] Step S202, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment;

[0160] Step S203, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0161] The present application also provides a computer program product, which, when executed on a data processing device, is suitable for executing a program for initializing at least the following method steps:

[0162] Step S201, obtaining the full value and reference value of the water content of diesel, and detecting the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel;

[0163] Step S202, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment;

[0164] Step S203, when the detection value is greater than the full value, a second warning message is issued and the engine torque is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

[0165] Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general computing device, they can be concentrated on a single computing device, or distributed on a network composed of multiple computing devices, they can be implemented by a program code executable by a computing device, so that they can be stored in a storage device and executed by the computing device, and in some cases, the steps shown or described can be executed in a different order than here, or they can be made into individual integrated circuit modules, or multiple modules or steps therein can be made into a single integrated circuit module for implementation. Thus, the present invention is not limited to any specific combination of hardware and software.

[0166] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0167] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0168] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0169] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process in the computer or other programmable device. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0170] In a typical configuration, a computing device includes one or more processors (CPU), input / output interfaces, network interfaces, and memory.

[0171] The memory may include non-permanent memory in a computer-readable medium, random access memory (RAM) and / or non-volatile memory in the form of read-only memory (ROM) or flash RAM. The memory is an example of a computer-readable medium.

[0172] Computer readable media include permanent and non-permanent, removable and non-removable media that can be implemented by any method or technology to store information. Information can be computer readable instructions, data structures, program modules or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device. As defined herein, computer readable media does not include temporary computer readable media (transitory media), such as modulated data signals and carrier waves.

[0173] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0174] From the above description, it can be seen that the above embodiments of the present application achieve the following technical effects:

[0175] 1) The control method of the water content of diesel in the engine of the present application, first, obtain the full value and reference value of the water content of diesel, and detect the water content of diesel in the diesel oil outlet pipe in real time through the fuel water content sensor to obtain the detection value, wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is running without risk, and the water content of diesel is the water content in diesel; then, when the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment; finally, when the detection value is greater than the full value, a second warning message is issued and the torque of the engine is controlled to be reduced; wherein the second warning message is used to prompt the engine to have a risk of failure. The present application detects the water content of diesel in real time and compares it with each set value, and issues a warning to indicate that the water content of diesel is seriously exceeded when the water content of diesel is greater than the full value, and issues a warning to indicate that the water content of diesel exceeds the set limit and needs to be drained in time when the water content of diesel is less than or equal to the full value and greater than the reference value. The present application solves the problem in the prior art that it is necessary to calculate the drainage cycle based on the engine running mileage, and to manually judge whether to separate the drainage based on information such as the engine running mileage, which may lead to poor engine combustion and malfunction.

[0176] 2) The control device for the water content of the engine diesel of the present application, the first acquisition unit, is used to obtain the full value and the reference value of the water content of the diesel, and the water content of the diesel in the diesel oil outlet pipe is detected in real time by the fuel water content sensor to obtain the detection value; wherein, the reference value is the maximum value of the water content of the diesel of qualified quality diesel, the full value is the maximum value of the water content of the diesel when the engine is running without risk, and the water content of the diesel is the water content in the engine diesel; the first issuing unit is used to issue a first warning message when the detection value is greater than the reference value and less than or equal to the full value; wherein, the first warning message is used to prompt the oil-water separation and drainage treatment; the second issuing unit is used to issue a second warning message and control the reduction of the engine torque when the detection value is greater than the full value; wherein, the second warning message is used to prompt the engine to have a risk of failure. The present application detects the water content of the diesel in real time and compares it with each set value. When the water content of the diesel is greater than the full value, an early warning is issued to indicate that the water content of the diesel is seriously exceeded, and when the water content of the diesel is less than or equal to the full value and greater than the reference value, an early warning is issued to indicate that the water content of the diesel exceeds the set limit and needs to be drained in time. The present application solves the problem in the prior art that it is necessary to calculate the drainage cycle based on the engine running mileage, and to manually judge whether to separate the drainage based on information such as the engine running mileage, which may lead to poor engine combustion and malfunction.

[0177] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A method for controlling the water content of engine diesel, It is characterized in that The engine is connected to a diesel oil outlet pipe, a fuel water content sensor is installed inside the diesel oil outlet pipe, and the fuel water content sensor is used to detect the water content in the diesel of the engine. The method includes: Obtaining the full value and reference value of the water content of the diesel, and detecting the water content of the diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the water content of the diesel of qualified quality, the full value is the maximum value of the water content of the diesel when the engine is kept running without risk, and the water content of the diesel is the water content in the diesel; When the detection value is greater than the reference value and less than or equal to the full value, a first warning message is issued; wherein the first warning message is used to prompt the oil-water separation and drainage treatment; When the detection value is greater than the full-scale value, a second warning message is issued and the torque of the engine is controlled to be reduced; wherein the second warning message is used to indicate that there is a risk of engine failure.

2. The method according to claim 1, It is characterized in that The step of obtaining the full scale value and the reference value of the water content in diesel includes: Acquire multiple diesel samples and operating data of the engine, wherein the operating data includes fuel injection amount, rotation speed and torque, and the diesel water content of the diesel samples is different; Injecting a plurality of diesel samples into the engine in order of their water content from low to high for testing, the diesel samples corresponding to the tests one by one; In each test, part of the operating condition data is adjusted multiple times within the preset range of each operating condition data until any of the operating condition data of the current test does not meet the corresponding preset range, the diesel sample corresponding to the previous test is determined as the target diesel sample, and the diesel water content of the target diesel sample is determined as the reference value, and the preset range includes the injection amount being less than or equal to the injection amount threshold, the speed being greater than or equal to the speed threshold, and the torque being greater than or equal to the torque threshold; When the operating condition data meets the preset range, water is added to the target diesel sample until any of the operating condition data does not meet the preset range, and the diesel water content in the target diesel sample is detected and determined as the full scale value.

3. The method according to claim 1, It is characterized in that After the fuel water content sensor detects the diesel water content in the diesel oil outlet pipe in real time and obtains the detection value, the method further includes: In a case where the detection value is less than or equal to the reference value, it is determined that the engine operates normally.

4. The method according to claim 1, It is characterized in that The oil-water separation device is located on the diesel oil outlet pipe, and the oil-water separation device is used to separate the diesel oil in the diesel oil outlet pipe from oil and water. The oil-water separation device is connected to a filtered water discharge pipeline, and a solenoid valve is arranged on the filtered water discharge pipeline, and the solenoid valve is used to control the on-off of the filtered water discharge pipeline. After issuing the first warning information, the method further includes: In response to a driver's selection operation, the selection operation includes manual drainage and automatic drainage; When the selected operation is the manual drainage and the solenoid valve has been manually opened, the water content of the diesel is detected in real time by the fuel water content sensor; when the water content of the diesel is less than or equal to the reference value, a first prompt message is issued, wherein the first prompt message is used to prompt that the solenoid valve can be closed because the water content of the diesel is within the set limit range; When the selected operation is the automatic drainage, the first warning message is issued multiple times, the solenoid valve is controlled to be opened for oil-water separation and drainage, and the diesel water content is detected in real time through the fuel water content sensor; when the diesel water content is less than or equal to the reference value, a second prompt message is issued and the solenoid valve is controlled to be closed, and the second prompt message is used to prompt that the diesel water content is within the set limit range and the solenoid valve has been closed.

5. The method according to claim 4, It is characterized in that After issuing the second warning information and controlling to reduce the torque of the engine, the method further includes: Controlling the opening of the solenoid valve to perform oil-water separation and drainage treatment and detecting the water content of the diesel in real time; When the diesel water content is less than or equal to the reference value, a third prompt message is issued, wherein the third prompt message is used to prompt that the oil-water separation and drainage process is fault-free and the diesel water content is within a set limit range; When the time of the oil-water separation and drainage process reaches a predetermined time and the water content of the diesel is greater than the reference value, an alarm message is issued, and the alarm message indicates that a failure occurs in the oil-water separation and drainage process.

6. The method according to claim 2, It is characterized in that After obtaining the full value and the reference value of the water content of diesel, the method further includes: According to the diesel water content and the speed and the torque in the operating condition data, an inverse engine MAP diagram is established. The inverse engine MAP diagram is a surface diagram of the maximum diesel water content for safe operation of the engine in a three-dimensional coordinate system. The horizontal axis of the three-dimensional coordinate system is the speed, the vertical axis of the three-dimensional coordinate system is the torque, and the vertical axis of the three-dimensional coordinate system is the diesel water content, which is used to represent the performance indicators of the engine under different operating condition data.

7. The method according to claim 6, It is characterized in that The oil-water separation device is connected to a filtered water discharge pipeline, and a solenoid valve is arranged on the filtered water discharge pipeline. After establishing the inverse engine MAP diagram, the method further includes: Acquire multiple historical speeds and multiple historical torques of the engine, and determine a common operating range of the engine, where the common operating range is the operating range of the speed and the torque when the engine is in risk-free operation; Querying the inverse engine MAP diagram based on the common operating condition area to obtain the calibrated water content of the engine; When the speed and the torque of the engine are in the normal operating range, detecting a target water content of the diesel fuel by the fuel water content sensor; When the water content difference is greater than the difference threshold, the solenoid valve is controlled to open to perform oil-water separation and drainage processing, and the water content difference is the difference between the target water content and the calibrated water content.

8. A control device for the water content of engine diesel, It is characterized in that The engine is connected to a diesel oil outlet pipe, and a fuel water content sensor is installed inside the diesel oil outlet pipe. The fuel water content sensor is used to detect the water content in the diesel of the engine. The device includes: A first acquisition unit is used to acquire a full value and a reference value of the water content of diesel, and detect the water content of diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the water content of diesel of qualified quality, the full value is the maximum value of the water content of diesel when the engine is kept running without risk, and the water content of diesel is the water content in the diesel of the engine; A first issuing unit is used to issue a first warning message when the detection value is greater than the reference value and less than or equal to the full value; wherein the first warning message is used to prompt the oil-water separation drainage process; The second issuing unit is used to issue a second warning message and control the reduction of the torque of the engine when the detection value is greater than the full-scale value; wherein the second warning message is used to indicate that there is a risk of engine failure.

9. A computer-readable storage medium, It is characterized in that The computer-readable storage medium includes a stored program, wherein when the program is executed, the device where the computer-readable storage medium is located is controlled to execute the method according to any one of claims 1 to 7.

10. A vehicle, It is characterized in that include: One or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and are configured to be executed by the one or more processors, and the one or more programs include methods for executing any one of claims 1 to 7.

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