Method for controlling water content in engine diesel, control device and vehicle

Abstract

The application provides a control method and device for water content in diesel of an engine and a vehicle. The engine is communicated with a diesel outlet pipe. A fuel water content sensor is installed in the diesel outlet pipe. The fuel water content sensor is used to detect the water content in diesel of the engine. The method comprises the following steps: obtaining a full value and a reference value of the water content in diesel, and detecting the water content in diesel in the diesel outlet pipe in real time through the fuel water content sensor to obtain a detection value; in the case that the detection value is greater than the reference value and less than or equal to the full value, a first early warning information is sent; and in the case that the detection value is greater than the full value, a second early warning information is sent and the torque of the engine is controlled to be reduced. The method solves the problem that in the prior art, the drainage period needs to be calculated according to the running mileage of the engine, and the engine combustion is poor and a fault occurs due to the artificial judgment of whether to separate drainage through information such as the running mileage of the engine.

Description

[0001] The present application claims priority to the Chinese patent application No. 202311793148.0, filed on December 22, 2023, and entitled "Engine Diesel Water Content Control Method, Control Device and Vehicle", the entire content of which is incorporated herein by reference. TECHNICAL FIELD

[0002] The present application relates to the technical field of engines, in particular to an engine diesel water content control method, control device, computer readable storage medium and vehicle. BACKGROUND

[0003] At present, the water separation in the engine diesel of the whole vehicle is calculated according to the engine running mileage to separate and drain water. The separation and drainage method does not consider the possible problems under special circumstances and does not consider factors such as diesel quality. For example, in the case of short engine running mileage, poor working environment and poor diesel quality, the fixed mileage, fixed time and other methods are easy to cause poor engine combustion and untimely maintenance. Once the problem occurs, it will cause the occurrence of safety hazards such as reduced reliability of the whole machine. SUMMARY

[0004] The main purpose of the present application is to provide an engine diesel water content control method, control device, computer readable storage medium and vehicle to at least solve the problem that the engine combustion is poor and fails in the prior art due to the need to calculate the drainage period according to the engine running mileage and to artificially judge whether to separate and drain water through engine running mileage and other information.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present application, an engine diesel water content control method is provided. The engine is in communication with a diesel oil outlet pipe. 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 method includes: obtaining a fullness 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 through the fuel water content sensor to obtain a detection value. The reference value is the maximum value of the diesel water content of the diesel of qualified quality. The fullness value is the maximum value of the diesel water content when the engine is operated without risk. The diesel water content is the water content in the diesel. In the case that the detection value is greater than the reference value and less than or equal to the fullness value, a first warning information is issued. The first warning information is used to prompt the oil-water separation and drainage treatment. In the case that the detection value is greater than the fullness value, a second warning information is issued and the torque of the engine is controlled to be reduced. The second warning information is used to prompt that the engine has a risk of failure.

[0006] Optionally, the acquiring the fullness value and the reference value of the diesel oil comprises: acquiring a plurality of diesel oil samples and working condition data of the engine, the working condition data comprising injection quantity, rotating speed and torque, the diesel oil water content of the diesel oil samples being different; sequentially injecting the diesel oil samples according to the order from low to high of the diesel oil water content of the plurality of diesel oil samples into the engine for testing, the diesel oil sample corresponding to the test; in each test, adjusting part of the working condition data within a preset range of each working condition data for multiple times until any working condition data of the current test does not satisfy the corresponding preset range, determining the diesel oil sample corresponding to the previous test as a target diesel oil sample, and determining the diesel oil water content of the target diesel oil sample as the reference value, the preset range comprising that the injection quantity is less than or equal to an injection quantity threshold, the rotating speed is greater than or equal to a rotating speed threshold, and the torque is greater than or equal to a torque threshold; in the case that the working condition data satisfies the preset range, adding water to the target diesel oil sample until any working condition data does not satisfy the preset range, detecting the diesel oil water content in the target diesel oil sample and determining as the fullness value.

[0007] Optionally, after the diesel oil water content 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: in the case that the detection value is less than or equal to the reference value, determining that the engine is running normally.

[0008] Optionally, an oil-water separation device is connected to the diesel oil outlet pipe, the oil-water separation device being used for oil-water separation of the diesel oil of the diesel oil outlet pipe, the oil-water separation device being connected with a filtered water discharge pipeline, an electromagnetic valve being arranged on the filtered water discharge pipeline, the electromagnetic valve being used for controlling the opening and closing of the filtered water discharge pipeline, after the first early warning information is sent, the method further comprises: in response to a selection operation of a driver, the selection operation comprising manual water discharge and automatic water discharge; in the case that the selection operation is the manual water discharge and the electromagnetic valve has been manually opened, the diesel oil water content is detected in real time by the fuel water content sensor; in the case that the diesel oil water content is less than or equal to the reference value, a first prompt information is sent, the first prompt information being used for prompting that the diesel oil water content has been within a set limit value range and the electromagnetic valve can be closed; in the case that the selection operation is the automatic water discharge, the first early warning information is sent for multiple times, the electromagnetic valve is controlled to be opened for oil-water separation and water discharge treatment, and the diesel oil water content is detected in real time by the fuel water content sensor; in the case that the diesel oil water content is less than or equal to the reference value, a second prompt information is sent and the electromagnetic valve is controlled to be closed, the second prompt information being used for prompting that the diesel oil water content has been within a set limit value range and the electromagnetic valve has been closed.

[0009] Optionally, after the second warning information is sent and the torque of the engine is controlled to be reduced, the method further comprises: controlling the electromagnetic valve to be opened to perform oil-water separation and drainage treatment and detecting the diesel water content in real time; sending third prompt information when the diesel water content is less than or equal to the reference value, the third prompt information being used to prompt that the oil-water separation and drainage treatment is failure-free and the diesel water content is within a set limit range; and sending alarm information when the oil-water separation and drainage treatment time reaches a predetermined time and the diesel water content is greater than the reference value, the alarm information prompting that the oil-water separation and drainage treatment is faulty.

[0010] Optionally, after the fullness value and the reference value of the diesel water content are obtained, the method further comprises: establishing an inverse engine MAP based on the diesel water content and the speed and the torque in the working condition data, the inverse engine MAP being a curved surface diagram of the maximum diesel water content for safe engine operation in a three-dimensional coordinate system, a horizontal axis of the three-dimensional coordinate system being the speed, a vertical axis of the three-dimensional coordinate system being the torque, and a longitudinal axis of the three-dimensional coordinate system being the diesel water content, and the three-dimensional coordinate system being used to represent performance indicators of the engine under different working condition data.

[0011] Optionally, the oil-water separation device is connected with a filtered water discharge pipeline, and an electromagnetic valve is arranged on the filtered water discharge pipeline. After the inverse engine MAP is established, the method further comprises: obtaining a plurality of historical speeds and a plurality of historical torques of the engine, determining a common working condition area of the engine, the common working condition area being a working range of the speed and the torque when the engine is in risk-free operation; querying the inverse engine MAP based on the common working condition area to obtain a calibrated water content of the engine; detecting a target water content of the diesel water content by the fuel water content sensor when the speed and the torque of the engine are in the common working condition area; and controlling the electromagnetic valve to be opened to perform oil-water separation and drainage treatment when a water content difference is greater than a difference threshold value, the water content difference being a difference between the target water content and the calibrated water content.

[0012] According to another aspect of the present application, there is provided an engine diesel water content control device, the engine being in communication with a diesel oil outlet pipe, a fuel water content sensor being installed inside the diesel oil outlet pipe, the fuel water content sensor being used to detect water content in diesel oil of the engine, the device comprising: a first acquisition unit configured to acquire a fullness value and a reference value of diesel water content, and to obtain a detection value by detecting the diesel water content in the diesel oil outlet pipe in real time through the fuel water content sensor; wherein the reference value is a maximum value of the diesel water content of the diesel oil of a quality standard, the fullness value is a maximum value of the diesel water content when the engine is kept in a risk-free operation, and the diesel water content is water content in the diesel oil of the engine; a first sending unit configured to send a first warning information when the detection value is greater than the reference value and less than or equal to the fullness value; wherein the first warning information is used to prompt oil-water separation and drainage treatment; and a second sending unit configured to send a second warning information and control torque reduction of the engine when the detection value is greater than the fullness value; wherein the second warning information is used to prompt a risk of engine failure.

[0013] According to still another aspect of the present application, there is provided a computer readable storage medium, the computer readable storage medium including a stored program, wherein the computer readable storage medium is caused to perform any of the methods described when the program is run.

[0014] According to yet another aspect of the present application, there is provided a vehicle comprising: one or more processors, a memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including instructions for performing any of the methods described.

[0015] The technical scheme of the application is applied to the control method of the engine diesel water content, first, the fullness value and the reference value of the diesel water content are obtained, and the diesel water content in the diesel oil outlet pipe is detected in real time through the fuel water content sensor to obtain the detection value, the reference value is the maximum value of the diesel water content of the qualified diesel, and the fullness value is the maximum value of the diesel water content when the engine is operated without risk, and the diesel water content is the water content in the diesel; then, the first early warning information is sent in the case that the detection value is greater than the reference value and less than or equal to the fullness value, and the first early warning information is used to prompt the oil-water separation and drainage treatment; finally, the second early warning information is sent and the torque of the engine is controlled to be reduced in the case that the detection value is greater than the fullness value, and the second early warning information is used to prompt that the engine has a fault risk. The application compares the real-time detection of the diesel water content with the set values, and sends a warning when the diesel water content is greater than the fullness value, and prompts that the diesel water content seriously exceeds the set limit value and needs to be drained in time when the diesel water content is less than or equal to the fullness value and greater than the reference value. The application solves the problem that the drainage cycle needs to be calculated according to the engine running mileage in the prior art, and the engine combustion is poor and a fault occurs due to the artificial judgment of whether to separate and drain water through the engine running mileage and other information. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A hardware structure block diagram of a mobile terminal for executing the control method of the engine diesel water content according to an embodiment of the application is shown;

[0017] Figure 2 A flowchart of the control method of the engine diesel water content according to an embodiment of the application is shown;

[0018] Figure 3 A flowchart of the determination method of the fullness value and the reference value of the engine diesel water content according to an embodiment of the application is shown;

[0019] Figure 4 A flowchart of the oil-water separation and drainage treatment according to an embodiment of the application is shown;

[0020] Figure 5 A schematic diagram of the detection flow of the engine diesel water content according to an embodiment of the application is shown;

[0021] Figure 6 A structure block diagram of the control device of the engine diesel water content according to an embodiment of the application is shown.

[0022] Among the above drawings, the following reference signs are included:

[0023] 102, processor; 104, memory; 106, transmission device; 108, input and output device; 1, diesel filter element; 2, ECU; 3, fuel water content sensor; 4, diesel filter element base; 5, diesel oil inlet pipe; 6, diesel oil outlet pipe; 7, fuel water content sensor pipe; 8, oil-water separation zone; 9, electromagnetic valve; 10, filtered water discharge pipe; 11, display screen. DETAILED DESCRIPTION

[0024] It should be noted that the embodiments and features of the embodiments in the present application can be combined with each other without conflict. The technical solutions in the embodiments of the present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] In order for those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the accompanying drawings and in combination with the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should be within the scope of protection of the present application.

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

[0027] For the convenience of description, the following describes some nouns or terms related to the embodiments of the present application:

[0028] Fuel water content sensor: the fuel water content sensor is made of the principle of water conductivity, which is used to detect the water content in diesel engine fuel;

[0029] The oil-water separator is a kind of fuel filter, which mainly removes water from fuel to reduce the failure of fuel injector and prolong the service life of engine.

[0030] As described in the background section, existing technologies for separating water in diesel fuel in vehicle engines calculate the drainage cycle based on engine mileage and manually determine whether to separate and drain using information such as engine mileage. This separation and drainage method does not consider potential problems under special circumstances or factors such as diesel fuel quality. To address the problem that existing technologies require calculating the drainage cycle based on engine mileage and manually determining whether to separate and drain using information such as engine mileage, which can lead to poor engine combustion and malfunctions, embodiments of this application provide a method, control device, computer-readable storage medium, and vehicle for controlling the water content in engine diesel fuel.

[0031] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0032] The methods and embodiments provided in this application can be executed on a mobile terminal, computer terminal, or similar computing device. Taking running on a mobile terminal as an example, Figure 1 This is a hardware structure block diagram of a mobile terminal for a method of controlling the water content in engine diesel fuel according to an embodiment of the present invention. Figure 1 As shown, a mobile terminal may include one or more ( Figure 1 Only one is shown in the diagram. A processor 102 (which may include, but is not limited to, a microprocessor MCU or a programmable logic device FPGA, etc.) and a memory 104 for storing data are also shown. The mobile terminal may further include a transmission device 106 for communication functions and an input / output device 108. Those skilled in the art will understand that... Figure 1 The structure shown is for illustrative purposes only and does not limit the structure of the mobile terminal described above. For example, the mobile terminal may also include components that are more... Figure 1 The more or fewer components shown, or having the same Figure 1 The different configurations shown.

[0033] The memory 104 can be used to store computer programs, such as software programs of application software and modules, such as a computer program corresponding to the display method of device information in the embodiments of the present application. The processor 102 executes various functional applications and data processing, i.e., implements the above method, by running the computer programs stored in the memory 104. The memory 104 can include a high-speed random access memory, and can further include a non-volatile memory, such as one or more magnetic storage devices, flash memories, or other non-volatile solid-state memories. In some examples, the memory 104 can further include memories disposed remotely with respect to the processor 102, which can be connected to the mobile terminal through a network. Examples of the above network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. The transmission device 106 is used to receive or send data via a network. The specific examples of the above network can include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a network adapter (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 can be a radio frequency (RF) module, which is used to communicate with the Internet in a wireless manner.

[0034] In the embodiments, a control method of engine diesel water content 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 the logical order is shown in the flowchart, in some cases, the steps shown or described can be executed in an order different from that shown here.

[0035] Figure 2 is a flowchart of the control method of engine diesel water content according to the embodiments of the present application. As shown in Figure 2 , the method comprises the following steps:

[0036] In step S201, a fullness value and a reference value of diesel water content are obtained, and a diesel water content in a diesel outlet pipe is detected in real time by a fuel water content sensor to obtain a detection value; wherein the reference value is a maximum value of diesel water content of diesel of qualified quality, and the fullness value is a maximum value of diesel water content when the engine is operated without risk, and the diesel water content is water content in diesel.

[0037] Specifically, the fullness value and the reference value of the water content of diesel oil are to ensure that the quality of diesel oil meets the standard and guarantees the normal operation of the engine. Too much water in diesel oil will affect the combustion efficiency, cause the engine power to drop, incomplete combustion, and even corrosion, and even cause engine failure in severe cases. By detecting the water content of diesel oil in the diesel oil outlet pipe in real time through the fuel water content sensor, the quality problem of diesel oil can be found in time, and engine failure or damage caused by too much water content in diesel oil can be avoided.

[0038] Step S202, in the case that the detection value is greater than the reference value and less than or equal to the fullness value, a first warning information is sent; wherein the first warning information is used to prompt the oil-water separation and drainage treatment.

[0039] Specifically, in the case that the detection value is greater than the reference value and less than or equal to the fullness value, it indicates that the water content in diesel oil has exceeded the water content during the normal operation of the engine, but there is no risk to affect the operation of the engine, and the oil-water separation and drainage treatment still needs to be prompted by the warning information to avoid damage to the engine caused by water.

[0040] Step S203, in the case that the detection value is greater than the fullness value, a second warning information is sent and the torque of the engine is controlled to be reduced; wherein the second warning information is used to prompt that the engine has a risk of failure.

[0041] Specifically, in the case that the detection value is greater than the fullness value, it indicates that the water content of diesel oil has seriously exceeded the water content during the normal operation of the engine, i.e. the engine has a risk of failure, at this time the warning information is immediately sent to prompt that the engine has a risk of failure and the torque of the engine is reduced to avoid the risk of engine failure and ensure the safe operation of the engine.

[0042] The above embodiment compares the real-time detected water content of diesel oil with each set value, sends a warning when the detection value is greater than the fullness value, and prompts that the water content of diesel oil seriously exceeds the set limit value and needs to be drained in time when the detection value is less than or equal to the fullness value and greater than the reference value. The present application solves the problem in the prior art that the drainage period needs to be calculated according to the running mileage of the engine, and the engine combustion is poor and failure occurs due to the artificial judgment of whether to separate and drain water.

[0043] In order for those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the engine diesel oil water content control method of the present application will be described in detail below in combination with specific embodiments.

[0044] In order to ensure that the quality of diesel oil is qualified, in an alternative implementation method, as shown in Figure 3 The above step S201 includes:

[0045] Step S2011, obtain multiple diesel samples and working condition data of the engine, the working condition data including fuel injection quantity, rotating speed and torque, and the water content of the diesel samples are all different.

[0046] Specifically, in order to determine the influence of the water content of the diesel on the performance of the engine, the engine can normally operate under any working condition data, first obtain multiple diesel samples and working condition data of the engine, and the water content of each diesel sample is different.

[0047] Step S2012, sequentially inject the diesel samples into the engine according to the order from low to high of the water content of the diesel samples to perform tests, and the diesel samples and the tests are one-to-one corresponding.

[0048] Specifically, sequentially perform tests on the multiple diesel samples according to the order from low to high of the water content of the diesel samples.

[0049] Step S2013, in each test, multiple times adjust part of the working condition data within a preset range of the working condition data until any working condition data of the current test does not satisfy the corresponding preset range, determine the diesel sample corresponding to the previous test as a target diesel sample, and determine the water content of the target diesel sample as a reference value, and the preset range includes that the fuel injection quantity is less than or equal to a fuel injection quantity threshold, the rotating speed is greater than or equal to a rotating speed threshold, and the torque is greater than or equal to a torque threshold.

[0050] Specifically, multiple times adjust within the preset range of the working condition data, if the working condition data of a certain diesel sample is all within the preset range after multiple times adjustment, it indicates that the quality of the diesel sample is qualified, then perform the test on the next diesel sample, until any working condition data of the current diesel sample does not satisfy the corresponding preset range, then the water content of the diesel sample before the current diesel sample is taken as the reference value, and the diesel sample is also taken as the target diesel sample for subsequent tests.

[0051] Step S2014, in the case that the working condition data satisfies the preset range, add water to the target diesel sample until any working condition data does not satisfy the preset range, detect the water content of the target diesel sample and determine it as a fullness value.

[0052] Specifically, in the case that the working condition data satisfies the preset range, slowly add a certain amount of water to the target diesel sample until any working condition data does not satisfy the preset range, which indicates that the maximum water content acceptable within the preset range of the working condition data is the water content detected at this time, i.e., the above-mentioned fullness value.

[0053] In order to provide safety and reliability guarantee, in an alternative implementation method, after the above-mentioned step S201, the method further includes:

[0054] Step S301, in the case that the detection value is less than or equal to the reference value, it is determined that the engine is running normally.

[0055] Specifically, the reference value is the maximum diesel water content when the engine is running normally, and if the detection value is less than or equal to the reference value, it means that the engine is running normally. Determining that the engine is running normally means that the system is working normally and there is no any fault or problem, which can provide safety and reliability guarantee to ensure that the engine is running within the normal working range.

[0056] In order to improve the efficiency and reliability of the engine, in an alternative implementation method, after the above step S201, the method further comprises:

[0057] Step S401, according to the diesel water content and the speed and torque in the working condition data, an inverse engine MAP is established, the inverse engine MAP is a surface graph of the maximum diesel water content for the 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 index of the engine under different working condition data.

[0058] Specifically, first, the engine working condition data under different diesel water contents, including speed and torque, need to be collected. The collected diesel water content and working condition data can be arranged 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 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. By drawing the surface graph, the performance index of the engine under different working conditions can be represented. Through the MAP, the influence of diesel water content on engine performance can be clearly seen, and the best working point of the engine under different working 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.

[0059] In order to further optimize the oil-water separation and drainage treatment and avoid the adverse effects of water in diesel on the engine, in an alternative implementation method, after the above step S401, the method further comprises:

[0060] Step S501, a plurality of historical speeds and a plurality of historical torques of the engine are obtained, and a commonly used working condition area of the engine is determined, which is the working range of the speed and torque when the engine is in risk-free operation.

[0061] Specifically, first, according to the historical working data of the engine, i.e. historical speed and historical torque, the commonly used working condition area of the engine is obtained according to the range of the historical speed and historical torque when the engine is running normally.

[0062] Step S502, querying the inverse engine MAP based on the common working condition area to obtain the calibration water content of the engine.

[0063] Specifically, the diesel water content in the common working condition area, i.e., the above-mentioned calibration water content, is obtained by querying the inverse engine MAP.

[0064] Step S503, when the engine speed and torque are in the common working condition area, detecting the target water content of the diesel water content by the fuel water content sensor.

[0065] Specifically, when the engine operating state is in the common working condition area, the target water content of the diesel water content is detected by the fuel water content sensor.

[0066] Step S504, when the water content difference is greater than the difference threshold, controlling the electromagnetic valve to be opened for oil-water separation and water discharge treatment, and the water content difference is the difference between the target water content and the calibration water content.

[0067] Specifically, if the water content difference is greater than the difference threshold, it means that the water content difference is too large at this time, and the electromagnetic valve needs to be controlled to be opened for oil-water separation and water discharge treatment. In this way, it can be ensured that the engine runs within a safe range and avoids the adverse effects of water in diesel on the engine, thereby improving the efficiency and reliability of the engine, and the oil-water separation can be handled by an oil-water separator.

[0068] In order to improve the driving experience of the driver and ensure the driving safety of the driver, in an alternative implementation method, after the above step S202, the method further comprises:

[0069] Step S601, in response to the selection operation of the driver, the selection operation includes manual water discharge and automatic water discharge.

[0070] Specifically, through real-time monitoring and prompt information, the driver can timely understand the diesel water content, and take corresponding operation measures, and the driver can select manual water discharge and automatic water discharge.

[0071] Step S602, when the selection operation is manual water discharge and the electromagnetic valve has been manually opened, the diesel water content is detected in real time by the fuel water content sensor.

[0072] Specifically, if the driver selects manual water discharge, the electromagnetic valve is manually opened after the vehicle speed is reduced to zero and parked, and the fuel water content sensor detects the diesel water content in real time.

[0073] Step S603, when the diesel water content is less than or equal to the reference value, a first prompt information is issued, and the first prompt information is used to prompt that the diesel water content has been within the set limit value range and the electromagnetic valve can be closed.

[0074] Specifically, in the case where the diesel water content is less than or equal to the reference value, it is indicated that the engine is in the range of normal operation, and a prompt information is sent to prompt that the diesel water content is in the set limit value range, and the driver can close the electromagnetic valve.

[0075] Step S604, in the case where the selection operation is automatic drainage, the first early warning information is sent multiple times, the electromagnetic valve is controlled to be opened for oil-water separation drainage treatment, and the diesel water content is detected in real time by the fuel water content sensor.

[0076] Specifically, in the case where the selection operation is automatic drainage, the first early warning information is sent multiple times to remind the driver to perform drainage treatment, the electromagnetic valve is automatically opened for oil-water separation drainage treatment by the ECU control, and the diesel water content is detected in real time by the fuel water content sensor.

[0077] Step S605, in the case where the diesel water content is less than or equal to the reference value, a second prompt information is sent and the electromagnetic valve is controlled to be closed, and the second prompt information is used to prompt that the diesel water content is in the set limit value range and the electromagnetic valve has been closed.

[0078] Specifically, in the case where the diesel water content is less than or equal to the reference value, it is indicated that the engine is in the range of normal operation, and a prompt information is sent to prompt that the diesel water content is in the set limit value range, and the driver can close the electromagnetic valve.

[0079] In order to improve the monitoring and management efficiency of the engine operation state, in an alternative implementation method, after the above step S203, the method further comprises:

[0080] Step S701, control the electromagnetic valve to be opened for oil-water separation drainage treatment and detect the diesel water content in real time.

[0081] Specifically, in the case where the diesel water content is greater than the fullness value, it is indicated that the water content in the diesel is seriously out of standard, and the whole machine operation is at risk, the ECU immediately controls the electromagnetic valve to be opened for oil-water separation drainage treatment and detects the diesel water content in real time, to ensure the normal operation of the engine, reduce the water content in the diesel, protect the equipment, and also improve the monitoring and management efficiency of the engine operation state, and reduce the damage to the engine caused by failure.

[0082] Step S702, in the case where the diesel water content is less than or equal to the reference value, a third prompt information is sent, and the third prompt information is used to prompt that the oil-water separation drainage treatment is failure-free and the diesel water content is in the set limit value range.

[0083] Specifically, in the case of diesel water content less than or equal to the reference value, it is indicated that the oil-water separation drainage treatment is failure-free, and the oil-water separation drainage treatment has been completed.

[0084] Step S703, in the case of the time of the oil-water separation drainage treatment reaching the predetermined time and the diesel water content being greater than the reference value, an alarm information is issued, and the alarm information prompts that the oil-water separation drainage treatment has failed.

[0085] Specifically, in the case of the time of the oil-water separation drainage treatment reaching the predetermined time and the diesel water content being greater than the reference value, it is indicated that the oil-water separation drainage treatment has failed to be effectively treated, and immediately an alarm information is issued to prompt the driver that the oil-water separation drainage treatment has failed and the problem needs to be solved in time.

[0086] The embodiment relates to a specific engine diesel water content control method, as shown in Figure 4 and Figure 5 , comprising the following steps:

[0087] Step S1: the diesel oil inlet pipe 5 is communicated with the diesel filter element base 4, diesel oil enters the oil-water separation zone 8 connected with the diesel filter element base 4 through the diesel oil inlet pipe 5 for water filtration, and then passes through the diesel filter element 1 for impurity filtration treatment; after the treatment, the water is discharged through the filtered water discharge pipeline 10 by opening the electromagnetic valve 9, and the filtered diesel oil enters the engine through the diesel oil outlet pipe 6;

[0088] Step S2: the fuel water content sensor 3 detects the diesel water content through the fuel water content sensor pipeline 7, and provides real-time detection data transmission to the ECU 2; the ECU 2 judges, and displays corresponding color prompt lights on the display screen 11 according to the detection value, for example, a green light is displayed when the detection value is normal, a yellow light is displayed when the detection value is abnormal, and a red light is displayed when the detection value is seriously out of limit;

[0089] Step S3: corresponding measures are taken according to the color of the prompt light to ensure the operation of the engine, for example, the engine operates normally when the prompt light is green; the driver selects manual operation or automatic operation when the prompt light is yellow, the electromagnetic valve 9 is manually opened, the diesel water content is detected in real time through the fuel water content sensor 3, and the electromagnetic valve 9 is manually closed until the detection value is normal; the engine operates abnormally when the prompt light is red, the engine torque is reduced, and the engine is sent to a service station for maintenance or manual operation; if the fault still exists after the manual operation, the engine is sent to the service station for maintenance.

[0090] 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 the logical order is shown in the flowchart, in some cases, the steps shown or described herein can be executed in an order different from that shown herein.

[0091] The engine diesel water content control device provided by the embodiment of the present application can be used to execute the engine diesel water content control method provided by the embodiment of the present application. The device is used to realize the above-mentioned embodiment and preferred embodiment, and details are not repeated. As used below, the term “module” can be a combination of software and / or hardware that realizes a predetermined function. Although the device described in the following embodiment is preferably realized in software, realization of hardware, or a combination of software and hardware, is also possible and contemplated.

[0092] The engine diesel water content control device provided by the embodiment of the present application is introduced below.

[0093] Figure 6 is a structural block diagram of the engine diesel water content control device according to the embodiment of the present application. As shown in Figure 6 , the device includes:

[0094] The first acquisition unit 100 is configured to acquire a fullness value and a reference value of diesel water content, and detect the diesel water content in the diesel oil outlet pipe in real time through a fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the diesel water content of diesel of qualified quality, and the fullness value is the maximum value of the diesel water content when the engine is operated without risk, and the diesel water content is the water content in diesel.

[0095] Specifically, the fullness value and the reference value of the diesel water content are acquired, wherein the fullness value is the maximum value of the diesel water content when the engine is operated without risk, and the reference value is the maximum value of the diesel water content when the engine is normally operated, indicating the maximum value of the diesel water content of qualified quality, and the diesel water content in the diesel oil outlet pipe is detected in real time through the fuel water content sensor, which is the above-mentioned detection value.

[0096] The first sending unit 200 is configured to send a first warning information in the case that the detection value is greater than the reference value and less than or equal to the fullness value; wherein the first warning information is used to prompt oil-water separation and drainage treatment.

[0097] Specifically, in the case that the detection value is greater than the reference value and less than or equal to the fullness value, it indicates that the water content in diesel has exceeded the water content when the engine is normally operated, but there is no risk to affect the operation of the engine, and a warning information still needs to be sent to prompt that oil-water separation and drainage treatment is needed to avoid damage to the engine caused by water.

[0098] The second sending unit 300 sends a second warning information and controls to reduce the torque of the engine in the case that the detection value is greater than the fullness value; wherein the second warning information is used to prompt that the engine has a fault risk.

[0099] Specifically, in the case that the detection value is greater than the fullness value, it indicates that the water content of the diesel has seriously exceeded the water content during normal operation of the engine at this time, that is, the engine has a risk of failure, at this time, the pre-warning information is immediately sent to prompt that the engine has a risk of failure and the torque of the engine is reduced to avoid the risk of engine failure, and the safe operation of the engine is ensured.

[0100] In the embodiment, by comparing the real-time detected water content of the diesel with each set value, when the detection value is greater than the fullness value, a pre-warning is sent to prompt that the water content of the diesel seriously exceeds the standard, and when the water content of the diesel is less than or equal to the fullness value and greater than the reference value, a pre-warning is sent to prompt that the water content of the diesel exceeds the set limit value and needs to be drained in time. The present application solves the problem in the prior art that the drainage period needs to be calculated according to the running mileage of the engine, and the engine combustion is poor and failure occurs due to artificial judgment whether to separate and drain according to the running mileage of the engine and other information.

[0101] In order to ensure the quality of the diesel, in an optional implementation method, the first acquisition unit 100 comprises:

[0102] The acquisition module acquires a plurality of diesel samples and working condition data of the engine, the working condition data comprising injection quantity, rotating speed and torque, and the water content of the diesel samples is different.

[0103] Specifically, in order to determine the influence of the water content of the diesel on the performance of the engine, the engine can normally operate under any working condition data, a plurality of diesel samples and working condition data of the engine are acquired first, and the water content of each diesel sample is different.

[0104] The test module sequentially injects the engine for testing according to the arrangement order of the water content of the diesel samples from low to high, and the diesel samples are one-to-one corresponding to the tests.

[0105] Specifically, the plurality of diesel samples are sequentially tested according to the order of the water content of the diesel from low to high.

[0106] The first determination module adjusts part of the working condition data in a preset range of each working condition data multiple times in each test until any working condition data of the current test does not satisfy the corresponding preset range, determines the diesel sample corresponding to the previous test as a target diesel sample, and determines the water content of the target diesel sample as a reference value, and the preset range comprises that the injection quantity is less than or equal to an injection quantity threshold, the rotating speed is greater than or equal to a rotating speed threshold, and the torque is greater than or equal to a torque threshold.

[0107] Specifically, the diesel sample is repeatedly adjusted within the preset range of each operating condition data. If the diesel sample is repeatedly adjusted within the preset range of each operating condition data, it means that the diesel sample is qualified. Then, the next diesel sample test is performed until any operating condition data of the current diesel sample does not meet the corresponding preset range. Then, the water content of the previous diesel sample of the current diesel sample is taken as the reference value, and the current diesel sample is taken as the target diesel sample for subsequent testing.

[0108] The second determining module adds water to the target diesel sample until any operating condition data does not meet the preset range, detects the water content of the target diesel sample, and determines the fullness value.

[0109] Specifically, in the case where 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 does not meet the preset range. It means that the maximum water content acceptable within the preset range of operating condition data is the water content detected at this time, i.e., the fullness value.

[0110] In order to provide safety and reliability assurance, in an optional implementation method, the device further comprises:

[0111] The first determining unit is configured to, after detecting the water content of the diesel in the diesel outlet pipe in real time by the fuel water content sensor to obtain a detection value, determine that the engine is running normally in the case where the detection value is less than or equal to the reference value.

[0112] Specifically, the reference value is the maximum water content of the diesel for normal engine operation. If the detection value is less than or equal to the reference value, it means that the engine is running normally. Determining that the engine is running normally means that the system is working normally and no fault or problem has occurred. This can provide safety and reliability assurance to ensure that the engine operates within the normal working range.

[0113] In order to improve the efficiency and reliability of the engine, in an optional implementation method, the device further comprises:

[0114] The establishing unit is configured to, after obtaining the fullness value and the reference value of the water content of the diesel, establish an inverse engine MAP graph according to the water content of the diesel and the speed and torque in the operating condition data. The inverse engine MAP graph is a curved surface graph of the maximum water content of the diesel for safe engine operation 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 water content of the diesel, which is used to represent the performance index of the engine under different operating condition data.

[0115] Specifically, first, engine operating condition data under different diesel water contents need to be collected, including speed and torque. The collected diesel water content and operating condition data can be arranged 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 plot of the inverse engine MAP can be plotted using data visualization software or a programming language. The horizontal axis is the speed, the vertical axis is the torque, and the vertical axis is the diesel water content. By depicting the surface plot, the performance indicators of the engine under different operating conditions can be represented. Through the MAP, the influence of diesel water content on engine performance can be clearly seen, and the best operating point of the engine under different operating conditions can be found, providing an important reference for the optimization design of the engine and improving the efficiency and reliability of the engine.

[0116] To further optimize the oil-water separation and drainage treatment and avoid the adverse effects of water in diesel on the engine, in an alternative implementation method, the device further comprises:

[0117] The second determination unit is configured to, after the inverse engine MAP is established, acquire a plurality of historical speeds and a plurality of historical torques of the engine, and determine a commonly used operating condition area of the engine, the commonly used operating condition area being a speed and torque operating range in which the engine is in a risk-free operation.

[0118] Specifically, the commonly used operating condition area of the engine is obtained according to the historical operating data of the engine, i.e., the historical speed and the historical torque, according to the range in which the historical speed and the historical torque of the engine in normal operation are located.

[0119] The query unit is configured to query the inverse engine MAP based on the commonly used operating condition area to obtain a calibration water content of the engine.

[0120] Specifically, the diesel water content under the commonly used operating condition area, i.e., the above-mentioned calibration water content, is obtained by querying the inverse engine MAP.

[0121] The first detection unit is configured to, when the speed and the torque of the engine are in the commonly used operating condition area, detect a target water content of the diesel water content through the fuel water content sensor.

[0122] Specifically, when the engine operating state is in the commonly used operating condition area, the diesel water content, i.e., the above-mentioned target water content, is detected through the fuel water content sensor.

[0123] The first control unit is configured to, when the water content difference is greater than the difference threshold value, control the electromagnetic valve to be opened to perform the oil-water separation and drainage treatment, the water content difference being a difference between the target water content and the calibration water content.

[0124] Specifically, if the water content difference value is greater than the difference threshold value, it indicates that the water content at this time is too different from the theoretical water content, and the electromagnetic valve needs to be controlled to be opened for oil-water separation and drainage treatment. 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.

[0125] To improve the driving experience of the driver and ensure the safety of the driver, in an alternative implementation method, the device further comprises:

[0126] a response unit configured to, in response to a selection operation of the driver after the first warning information is issued, the selection operation including manual drainage and automatic drainage.

[0127] Specifically, through real-time monitoring and issuance of prompt information, the driver can timely understand the water content of diesel and take corresponding operation measures. The driver can choose manual drainage and automatic drainage.

[0128] The second detection unit is configured to, in the case that the selection operation is manual drainage and the electromagnetic valve has been manually opened, detect the water content of diesel in real time through the fuel water content sensor.

[0129] Specifically, if the driver chooses manual drainage, the electromagnetic valve is manually opened after the vehicle speed is reduced to zero and parked. At the same time, the fuel water content sensor detects the water content of diesel in real time.

[0130] The third issuance unit is configured to, in the case that the water content of diesel is less than or equal to the reference value, issue a first prompt information, the first prompt information being used to prompt that the water content of diesel has been within a set limit value range and the electromagnetic valve can be closed.

[0131] Specifically, in the case that the water content of diesel is less than or equal to the reference value, it indicates that the engine has been within the normal operating range. The prompt information is issued to prompt that the water content of diesel has been within a set limit value range and the driver can close the electromagnetic valve. The set limit value range is the interval range from zero to the reference value.

[0132] The second control unit is configured to, in the case that the selection operation is automatic drainage, issue the first warning information multiple times, control the electromagnetic valve to be opened for oil-water separation and drainage treatment, and detect the water content of diesel in real time through the fuel water content sensor.

[0133] Specifically, in the case that the selection operation is automatic drainage, the first warning information is issued multiple times to remind the driver to perform drainage treatment. The electromagnetic valve is automatically opened for oil-water separation and drainage treatment through the ECU, and the water content of diesel is detected in real time through the fuel water content sensor.

[0134] The fourth sending unit sends second prompt information and controls the electromagnetic valve to be closed when the diesel water content is less than or equal to the reference value, and the second prompt information is used to prompt that the diesel water content has been in the set limit value range and the electromagnetic valve has been closed.

[0135] Specifically, when the diesel water content is less than or equal to the reference value, it indicates that the engine has been in the normal operation range, and the prompt information is sent to prompt the driver that the diesel water content has been in the set limit value range and the ECU has controlled the electromagnetic valve to be closed.

[0136] In order to improve the monitoring and management efficiency of the engine operation state, in an alternative implementation method, the device further comprises:

[0137] The third control unit controls the electromagnetic valve to be opened for oil-water separation and drainage treatment and detects the diesel water content in real time after the second early warning information is sent and the torque of the engine is reduced.

[0138] Specifically, when the diesel water content is greater than the fullness value, it indicates that the water content in the diesel is seriously over-standard, and the whole machine operation is at risk. The ECU immediately controls the electromagnetic valve to be opened for oil-water separation and drainage treatment and detects the diesel water content in real time to ensure the normal operation of the engine, reduce the water content in the diesel, protect the equipment, and also improve the monitoring and management efficiency of the engine operation state and reduce the damage to the engine caused by failure.

[0139] The fifth sending unit sends third prompt information when the diesel water content is less than or equal to the reference value, and the third prompt information is used to prompt that the oil-water separation and drainage treatment is failure-free and the diesel water content has been in the set limit value range.

[0140] Specifically, when the diesel water content is less than or equal to the reference value, it indicates that the oil-water separation and drainage treatment is failure-free and has completed the oil-water separation and drainage treatment.

[0141] The sixth sending unit sends an alarm information 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, and the alarm information prompts that the oil-water separation and drainage treatment has failed.

[0142] 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 indicates that the oil-water separation and drainage treatment has failed to effectively process, and an alarm information is immediately sent to prompt the driver that the oil-water separation and drainage treatment has failed and measures need to be taken in time.

[0143] The engine diesel water content control device includes a processor and a memory, the first acquisition unit, the first sending unit and the second sending unit are stored in the memory as program units, and the corresponding functions are realized by the processor executing the program units stored in the memory.

[0144] The processor includes a core, and the core calls the corresponding program units in the memory.

[0145] The memory can include a non-permanent memory in a computer readable medium, a random access memory (RAM) and / or a non-volatile memory such as a read-only memory (ROM) or a flash memory (flash RAM), and the memory includes at least one memory chip.

[0146] The embodiment of the application provides a computer readable storage medium, and the computer readable storage medium includes a stored program.

[0147] Specifically, the engine diesel water content control method includes:

[0148] In step S201, the fullness value and the reference value of the diesel water content are acquired, and the diesel water content in a diesel oil outlet pipe is detected in real time through a fuel water content sensor to obtain a detection value; the reference value is the maximum value of the diesel water content of qualified diesel, the fullness value is the maximum value of the diesel water content when the engine is operated without risk, and the diesel water content is the water content in diesel.

[0149] In step S202, first warning information is sent when the detection value is greater than the reference value and less than or equal to the fullness value; the first warning information is used to prompt the oil-water separation and drainage treatment.

[0150] In step S203, second warning information is sent and the torque of the engine is controlled to be reduced when the detection value is greater than the fullness value; the second warning information is used to prompt that the engine has a risk of failure.

[0151] The embodiment of the application provides a processor, and the processor is used for running a program.

[0152] Specifically, the engine diesel water content control method comprises:

[0153] In step S201, a fullness value and a reference value of diesel water content are obtained, and a detection value of diesel water content in a diesel oil outlet pipe is detected in real time by a fuel water content sensor; wherein the reference value is a maximum value of diesel water content of diesel oil of qualified quality, the fullness value is a maximum value of diesel water content when the engine is kept in a risk-free operation, and the diesel water content is water content in diesel oil;

[0154] In step S202, first warning information is sent when the detection value is greater than the reference value and less than or equal to the fullness value; wherein the first warning information is used to prompt oil-water separation and drainage treatment;

[0155] In step S203, second warning information is sent and the torque of the engine is controlled to be reduced when the detection value is greater than the fullness value; wherein the second warning information is used to prompt a risk of engine failure.

[0156] The embodiment of the application provides a vehicle, which comprises a processor, a memory and a program stored in the memory and executable on the processor, and at least the following steps are implemented when the processor executes the program:

[0157] In step S201, a fullness value and a reference value of diesel water content are obtained, and a detection value of diesel water content in a diesel oil outlet pipe is detected in real time by a fuel water content sensor; wherein the reference value is a maximum value of diesel water content of diesel oil of qualified quality, the fullness value is a maximum value of diesel water content when the engine is kept in a risk-free operation, and the diesel water content is water content in diesel oil;

[0158] In step S202, first warning information is sent when the detection value is greater than the reference value and less than or equal to the fullness value; wherein the first warning information is used to prompt oil-water separation and drainage treatment;

[0159] In step S203, second warning information is sent and the torque of the engine is controlled to be reduced when the detection value is greater than the fullness value; wherein the second warning information is used to prompt a risk of engine failure.

[0160] The application also provides a computer program product, which is suitable for executing a program with at least the following method steps when executed on a data processing device:

[0161] In step S201, a fullness value and a reference value of diesel water content are obtained, and a detection value of diesel water content in a diesel oil outlet pipe is detected in real time by a fuel water content sensor; wherein the reference value is a maximum value of diesel water content of diesel oil of qualified quality, the fullness value is a maximum value of diesel water content when the engine is kept in a risk-free operation, and the diesel water content is water content in diesel oil;

[0162] Step S202, in the case that the detection value is greater than the reference value and less than or equal to the full-scale value, issuing a first early warning information; wherein the first early warning information is used to prompt to carry out oil-water separation drainage treatment;

[0163] Step S203, in the case that the detection value is greater than the full-scale value, issuing a second early warning information and controlling to reduce the torque of the engine; wherein the second early warning information is used to prompt that the engine has a risk of failure.

[0164] Obviously, those skilled in the art should understand that the modules or steps of the present application described above can be realized by general computing devices, which can be concentrated on a single computing device or distributed on a network composed of multiple computing devices, which can be realized by program codes executable by computing devices, so that they can be stored in storage devices and executed by computing devices, and in some cases, the steps shown or described can be executed in different order, or they can be made into individual integrated circuit modules, or multiple modules or steps can be made into a single integrated circuit module. Thus, the present application is not limited to any particular hardware and software combination.

[0165] Those skilled in the art should understand that the embodiments of the present application can be provided as a method, a system, or a computer program product. Therefore, the present application can take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Moreover, the present application can take the form of a computer program product implemented on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROMs, optical storage devices, etc.) containing computer-usable program code.

[0166] The present application is described with reference to flowcharts and / or block diagrams according to the methods, devices (systems), and computer program products of the embodiments of the present application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to produce a machine, so that the instructions executed by the computer or other programmable data processing devices produce a device that implements the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1 The devices that implement the functions specified in one flow or multiple flows and / or blocks.

[0167] These computer program instructions can also be stored in a computer- readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instructions which implement the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0168] These computer program instructions can also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the Figure 1 function specified in the flow or flows and / or blocks Figure 1 of the block or blocks.

[0169] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0170] The memory can include non-persistent memory and / or volatile memory, such as a random access memory (RAM) including a cache area for the temporary storage of data. The memory can also include non-volatile memory, such as read only memory (ROM), electrically programmable read only memory (EPROM), electrically erasable programmable read only memory (EEPROM), flash memory, or a combination of non-volatile memories in different forms. The memory is an example of computer readable storage media.

[0171] Computer readable media includes permanent and non-permanent, removable and non-removable media implemented in any method or technology for storage of information such as 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 programmable read only memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital versatile disc (DVD), or other optical storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible to a computing device. According to the definition herein, computer readable media does not include transitory media, such as modulated data signals and carrier waves.

[0172] It is also important to note that the terms "comprising", "including", or any other variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element preceded by "comprises a" does not exclude the existence of additional identical elements in the process, method, article, or apparatus including the element.

[0173] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0174] 1) The engine diesel water content control method of the present application, first, the fullness value and the reference value of the diesel water content are obtained, and the diesel water content in the diesel oil outlet pipe is detected in real time through the fuel water content sensor to obtain the detection value, wherein the reference value is the maximum value of the diesel water content of the qualified diesel, and the fullness value is the maximum value of the diesel water content when the engine runs without risk, and the diesel water content is the water content in the diesel; Then, in the case that the detection value is greater than the reference value and less than or equal to the fullness value, the first warning information is sent; wherein the first warning information is used to prompt the oil-water separation and drainage treatment; Finally, in the case that the detection value is greater than the fullness value, the second warning information is sent and the torque of the engine is controlled to be reduced; wherein the second warning information is used to prompt that the engine has a fault risk. The present application compares the real-time detection of the diesel water content with each set value, and when the diesel water content is greater than the fullness value, the warning is sent to prompt that the diesel water content is seriously out of standard, and when the diesel water content is less than or equal to the fullness value and greater than the reference value, the warning is prompted that the diesel water content exceeds the set limit value and needs to be drained in time. The present application solves the problem in the prior art that the drainage cycle needs to be calculated according to the engine running mileage, and the engine combustion is poor and fails due to the artificial judgment of whether to separate and drain water through the engine running mileage and other information.

[0175] 2) The engine diesel water content control device of the application, the first acquisition unit is used for obtaining the fullness value and the reference value of the diesel water content, and the diesel water content in the diesel oil outlet pipe is detected in real time through the fuel water content sensor to obtain the detection value; wherein the reference value is the maximum value of the diesel water content of the qualified diesel, and the fullness value is the maximum value of the diesel water content when the engine runs without risk, and the diesel water content is the water content in the engine diesel; the first sending unit is used for sending the first early warning information when the detection value is greater than the reference value and less than or equal to the fullness value; wherein the first early warning information is used to prompt the oil-water separation and drainage treatment; the second sending unit is used for sending the second early warning information and controlling the reduction of the torque of the engine when the detection value is greater than the fullness value; wherein the second early warning information is used to prompt the engine failure risk. The application compares the real-time detection of the diesel water content with each set value, and sends an early warning when the diesel water content is greater than the fullness value, prompting that the diesel water content is seriously out of standard, and sends an early warning when the diesel water content is less than or equal to the fullness value and greater than the reference value, prompting that the diesel water content exceeds the set limit value and needs to be drained in time. The application solves the problem that the existing technology needs to calculate the drainage cycle according to the engine running mileage, and manually judges whether to separate and drain water according to the engine running mileage and other information, which leads to poor engine combustion and failure.

[0176] The above only describes the preferred embodiments of the application and is not used to limit the application. For those skilled in the art, the application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A method of controlling the water content of diesel fuel in an engine, characterized by, The engine is communicated with a diesel oil outlet pipe, a fuel water content sensor is installed in the diesel oil outlet pipe, the fuel water content sensor is used for detecting water content in diesel oil of the engine, and the method comprises the following steps: Fullness value and reference value of water content in diesel oil are obtained, and the water content in the diesel oil outlet pipe is detected in real time by the fuel water content sensor to obtain a detection value; wherein the reference value is the maximum value of the water content in the diesel oil of the qualified diesel oil, and the fullness value is the maximum value of the water content in the diesel oil when the engine is operated without risk, and the water content in the diesel oil is water content in the diesel oil; In the case that the detection value is greater than the reference value and less than or equal to the fullness value, a first early warning information is sent; wherein the first early warning information is used to prompt oil-water separation and drainage treatment; In the case that the detection value is greater than the fullness value, a second early warning information is sent and the torque of the engine is controlled to be reduced; wherein the second early warning information is used to prompt that the engine has a risk of failure, An oil-water separation device is located on the diesel oil outlet pipe, the oil-water separation device is used for oil-water separation of diesel oil of the diesel oil outlet pipe, the oil-water separation device is connected with a filtered water discharge pipeline, an electromagnetic valve is arranged on the filtered water discharge pipeline, the electromagnetic valve is used to control on-off of the filtered water discharge pipeline, after the first early warning information is sent, the method further comprises: in response to selection operation of a driver, the selection operation includes manual drainage and automatic drainage; in the case that the selection operation is the manual drainage and the electromagnetic valve has been manually opened, the water content in the diesel oil is detected in real time by the fuel water content sensor; in the case that the water content in the diesel oil is less than or equal to the reference value, a first prompt information is sent, the first prompt information is used to prompt that the water content in the diesel oil has been in a set limit value range and the electromagnetic valve can be closed; in the case that the selection operation is the automatic drainage, the first early warning information is sent multiple times, the electromagnetic valve is controlled to be opened for oil-water separation and drainage treatment, and the water content in the diesel oil is detected in real time by the fuel water content sensor; in the case that the water content in the diesel oil is less than or equal to the reference value, a second prompt information is sent and the electromagnetic valve is controlled to be closed, the second prompt information is used to prompt that the water content in the diesel oil has been in a set limit value range and the electromagnetic valve has been closed.

2. The method of claim 1, wherein, The fullness value and the reference value of the water content in the diesel oil are obtained, comprising: A plurality of diesel oil samples and working condition data of the engine are obtained, the working condition data comprises injection quantity, rotating speed and torque, and the water content in the diesel oil of the diesel oil samples is different; The diesel oil samples are injected into the engine in turn according to the arrangement order from low to high of the water content in the diesel oil of the diesel oil samples, and the diesel oil samples are one-to-one corresponding to the test; The fullness value and the reference value of the water content in the diesel oil are obtained, comprising: A plurality of diesel oil samples and working condition data of the engine are obtained, the working condition data comprises injection quantity, rotating speed and torque, and the water content in the diesel oil of the diesel oil samples is different; The diesel oil samples are injected into the engine in turn according to the arrangement order from low to high of the water content in the diesel oil of the diesel oil samples, and the diesel oil samples are one-to-one corresponding to the test; In each test, part of the working condition data is adjusted multiple times within a preset range of each of the working condition data until any of the working condition data of the current test does not satisfy the corresponding preset range, a diesel sample corresponding to a previous test is determined as a target diesel sample, and the diesel water content of the target diesel sample is determined as the reference value, and the preset range includes that the fuel injection quantity is less than or equal to a fuel injection quantity threshold, the rotating speed is greater than or equal to a rotating speed threshold, and the torque is greater than or equal to a torque threshold; In the case where the working condition data satisfies the preset range, water is added to the target diesel sample until any of the working condition data does not satisfy the preset range, the diesel water content in the target diesel sample is detected and determined as the fullness value.

3. The method of claim 1, wherein, After the diesel water content 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: In the case where the detection value is less than or equal to the reference value, it is determined that the engine is operating normally.

4. The method of claim 1, wherein, After the second warning information is sent out and the torque of the engine is controlled to be reduced, the method further comprises: Controlling the electromagnetic valve to be opened to perform oil-water separation and drainage treatment and detecting the diesel water content in real time; In the case where the diesel water content is less than or equal to the reference value, third prompt information is sent out, and the third prompt information is used to prompt that the oil-water separation and drainage treatment is fault-free and the diesel water content is within a set limit range; In the case where 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, an alarm information is sent out, and the alarm information prompts that the oil-water separation and drainage treatment is faulty.

5. The method of claim 2, wherein, After the fullness value and the reference value of the diesel water content are obtained, the method further comprises: According to the diesel water content and the rotating speed and the torque in the working condition data, an inverse engine MAP graph is established, the inverse engine MAP graph is a curved surface graph of the maximum diesel water content for safe operation of the engine in a three-dimensional coordinate system, a horizontal axis of the three-dimensional coordinate system is the rotating speed, a vertical axis of the three-dimensional coordinate system is the torque, and a vertical axis of the three-dimensional coordinate system is the diesel water content, which is used to represent the performance index of the engine under different working condition data.

6. The method of claim 5, wherein, The oil-water separation device is connected with a filtered water discharge pipeline, an electromagnetic valve is arranged on the filtered water discharge pipeline, and after the inverse engine MAP graph is established, the method further comprises: A plurality of historical rotating speeds and a plurality of historical torques of the engine are obtained, a common working condition area of the engine is determined, the common working condition area is a working range of the rotating speed and the torque when the engine is in risk-free operation; The inverse engine MAP graph is queried based on the common working condition area to obtain a calibrated water content of the engine; In the case where the rotating speed and the torque of the engine are in the common working condition area, a target water content of the diesel water content is detected by the fuel water content sensor. In a case where the water content difference is greater than the difference threshold value, the electromagnetic valve is controlled to be opened to perform oil-water separation and drainage treatment, and the water content difference is a difference between the target water content and the calibration water content.

7. An engine diesel water content control device characterized by, The engine is communicated with a diesel oil outlet pipe, a fuel water content sensor is installed in the diesel oil outlet pipe, and the fuel water content sensor is used to detect water content in diesel oil of the engine. The first obtaining unit is configured to obtain a fullness value and a reference value of the diesel water content, and to detect the diesel water content in the diesel oil outlet pipe in real time by using the fuel water content sensor to obtain a detection value; the reference value is a maximum value of the diesel water content of the diesel oil of a quality standard, and the fullness value is a maximum value of the diesel water content when the engine is kept in a risk-free operation state; the diesel water content is water content in diesel oil of the engine; The first sending unit is configured to send first warning information in a case where the detection value is greater than the reference value and less than or equal to the fullness value; the first warning information is used to prompt oil-water separation and drainage treatment. The second sending unit is configured to send second warning information and control torque reduction of the engine in a case where the detection value is greater than the fullness value; the second warning information is used to prompt that the engine has a risk of failure. The oil-water separation device is connected to the diesel oil outlet pipe, and is used to perform oil-water separation on diesel oil of the diesel oil outlet pipe; the oil-water separation device is connected with a filtered water discharge pipeline, an electromagnetic valve is arranged on the filtered water discharge pipeline, and the electromagnetic valve is used to control opening and closing of the filtered water discharge pipeline; the device further includes a responding unit configured to, after the first warning information is sent, respond to a selection operation of a driver, the selection operation including manual drainage and automatic drainage; a second detection unit configured to, in a case where the selection operation is the manual drainage and the electromagnetic valve has been manually opened, detect the diesel water content in real time by using the fuel water content sensor; a third sending unit configured to, in a case where the diesel water content is less than or equal to the reference value, send first prompt information, the first prompt information being used to prompt that the diesel water content has been within a set limit range and the electromagnetic valve can be closed; and a second control unit configured to, in a case where the selection operation is the automatic drainage, send the first warning information multiple times, control the electromagnetic valve to be opened to perform oil-water separation and drainage treatment, and detect the diesel water content in real time by using the fuel water content sensor; the second control unit is configured to, in a case where the diesel water content is less than or equal to the reference value, send second prompt information and control the electromagnetic valve to be closed, the second prompt information being used to prompt that the diesel water content has been within a set limit range and the electromagnetic valve has been closed.

8. A computer-readable storage medium, characterized in that, The computer readable storage medium includes a stored program, wherein the program controls the device where the computer readable storage medium is located to perform the method of any one of claims 1 to 6 when the program is running.

9. A vehicle characterized by comprising: The computer readable storage medium includes a stored program, wherein the program controls the device where the computer readable storage medium is located to perform the method of any one of claims 1 to 6 when the program is running. one or more processors, memory, and one or more programs, wherein the one or more programs are stored in the memory and configured to be executed by the one or more processors, the one or more programs including programs for performing the method of any one of claims 1 to 6.

Images