Simulation test method and device for water separation performance of oil emulsion

Abstract

The application provides a simulation test method and device for water separation performance of machine oil after emulsification, and relates to the field of water separation performance simulation test. The method comprises the following steps: adjusting the reaction temperature of a reaction device; controlling a liquid storage device to deliver machine oil with a predetermined water content to the reaction device; controlling a measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, wherein the separated water content is the ratio of the mass of the separated water to the mass of the water in the machine oil with the predetermined water content; and determining the current reaction temperature as the minimum temperature of the engine when the machine oil with the predetermined water content is used under the condition that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, wherein the maximum water separation time is the maximum time for the engine to separate water from the machine oil, thereby solving the problem that the engine is prone to wear due to the difficulty in determining the water separation performance of the engine after the emulsification of the machine oil in the prior art.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of water separation performance simulation testing, in particular to a method, device, computer program product and simulation testing system for simulating and testing water separation performance of emulsified engine oil. BACKGROUND

[0002] With fuel diversification and diversified application scenarios, the water content in combustion products is increasing. For example, when a hydrogen engine is working at low temperature, the water produced by combustion enters the engine oil, causing the engine oil to emulsify, affecting the lubricating properties of the engine oil, and further causing engine wear. Therefore, it is necessary to predict the influence of water content on the emulsification state of the engine oil in advance, and the water separation performance in the engine oil, to prevent the engine from wearing out due to too high water content in the engine oil. SUMMARY

[0003] The main purpose of the present application is to provide a method, device, computer program product and simulation testing system for simulating and testing water separation performance of emulsified engine oil, to at least solve the problem that it is difficult to determine the water separation performance of the engine after the engine oil is emulsified, which leads to easy engine wear in the prior art.

[0004] In order to achieve the above-mentioned purpose, according to one aspect of the present application, a method for simulating and testing water separation performance of emulsified engine oil is provided. The simulation testing device includes a liquid storage device, a reaction device and a measuring device connected in sequence. The liquid storage device is used to store emulsified engine oil. The reaction device is used to adjust the temperature to simulate the environment in which the engine oil is located when the engine is running. The measuring device is used to measure the water content separated from the emulsified engine oil. The method includes adjusting the reaction temperature of the reaction device, controlling the liquid storage device to deliver the engine oil with a predetermined water content to the reaction device, controlling the measuring device to measure the separated water content corresponding to the separated water in real time, obtaining a first separated water content, and determining the current reaction temperature as the minimum temperature of the engine when using the engine oil with the predetermined water content, under the condition that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold. The maximum water separation time is the maximum time for the engine to separate water from the engine oil.

[0005] Optionally, after the current reaction temperature is determined as the minimum temperature of the engine when the oil with the predetermined water content is used after the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, the method comprises: a first control step of controlling the reaction device to deliver the oil after water separation to the liquid storage device and controlling the liquid storage device to add a predetermined amount of water in the case that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold; an adjustment step of adjusting the reaction temperature of the reaction device; a second control step of controlling the liquid storage device to deliver the current emulsified oil to the reaction device; a third control step of controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a second separated water content; an acquisition step of acquiring the current reaction temperature to obtain an updated reaction temperature in the case that the reaction time of the reaction device is equal to the maximum water separation time and the second separated water content is equal to the separated water content threshold; and an update step of updating the minimum temperature to the updated reaction temperature in the case that the updated reaction temperature is greater than the minimum temperature; sequentially repeating the first control step, the adjustment step, the second control step, the third control step, the acquisition step and the update step at least once until the number of repetitions reaches a predetermined number.

[0006] Optionally, before adjusting the liquid storage temperature of the liquid storage device and the reaction temperature of the reaction device, the method further comprises: adjusting the liquid storage temperature of the liquid storage device until the oil with the predetermined water content is stratified; determining the maximum ambient temperature of the engine when the oil with the predetermined water content is used as the maximum liquid storage temperature of the oil with the predetermined water content in the liquid storage device that is not stratified; and issuing an ambient temperature overheat warning in the case that the ambient temperature of the engine is greater than the maximum ambient temperature.

[0007] Optionally, before adjusting the liquid storage temperature of the liquid storage device and the reaction temperature of the reaction device, the method further comprises: adjusting the liquid storage temperature of the liquid storage device so that the liquid storage temperature of the liquid storage device is less than the maximum ambient temperature.

[0008] Optionally, after the measuring device measures the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, the method further comprises: determining that the oil with the predetermined water content cannot reach water separation equilibrium in the case that the minimum temperature is greater than the maximum temperature of the engine.

[0009] Optionally, in the case that the minimum temperature is greater than the maximum temperature of the engine, after determining that the predetermined water content of the engine oil cannot reach a water separation equilibrium, the method comprises: reducing the predetermined water content until the minimum temperature is equal to the maximum temperature of the engine, determining that the current predetermined water content is the maximum water content of the engine oil of the engine; in the case that the water content of the engine oil in the engine oil storage device is greater than the maximum water content, issuing an engine oil replacement reminder.

[0010] Optionally, the simulation test device further comprises a water storage device connected with the liquid storage device, and the water storage device is controlled to add the predetermined mass of water, comprising: controlling the water storage device to add the predetermined mass of water to the liquid storage device.

[0011] According to another aspect of the present application, a simulation test device for water separation performance of emulsified engine oil is provided, the simulation test device comprises a liquid storage device, a reaction device and a measurement device connected in sequence, the liquid storage device is used for storing emulsified engine oil, the reaction device is used for adjusting temperature to simulate an environment in which the engine oil is located when the engine is running, and the measurement device is used for measuring water content separated from the emulsified engine oil, and the device comprises: a first adjustment unit used for adjusting a reaction temperature of the reaction device; a first control unit used for controlling the liquid storage device to deliver the engine oil with a predetermined water content to the reaction device; a second control unit used for controlling the measurement device to measure a separated water content corresponding to separated water in real time, to obtain a first separated water content, the separated water content being a ratio of a mass of the separated water to a mass of water in the engine oil with the predetermined water content; and a first determination unit used for determining, in the case that a reaction duration of the reaction device is equal to a maximum water separation duration of the engine and the first separated water content is equal to a separated water content threshold, that the current reaction temperature is a minimum temperature of the engine when the engine oil with the predetermined water content is used.

[0012] According to still another aspect of the present application, a computer program product is provided, comprising a computer program, which, when executed by a processor, implements any of the methods.

[0013] According to another aspect of the present application, a simulation test system is provided, comprising a simulation test device, one or more processors, a memory, and one or more programs, wherein the simulation test device comprises a liquid storage device, a reaction device, and a measuring device connected in sequence, the liquid storage device is used to store emulsified engine oil, the reaction device is used to adjust the temperature to simulate the environment in which the engine oil is located when the engine is running, and the measuring device is used to measure the water content of the separated emulsified engine oil, the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs comprise a program for executing any one of the methods.

[0014] By adjusting the reaction temperature of the reaction device to simulate the environment in which the engine oil is located when the engine is running, and controlling the liquid storage device to deliver engine oil with a predetermined water content to the reaction device, the simulation test method for water separation performance of emulsified engine oil can measure the separated water content corresponding to the separated water content in the reaction device in real time to obtain a first separated water content. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, if the first separated water content is greater than or equal to the separated water content threshold, it indicates that the water separation performance is qualified, and the engine will not be damaged due to emulsification after water separation. That is, the engine can achieve water separation balance when the engine separates water from engine oil with a predetermined water content at the current reaction temperature. Since the higher the temperature, the easier the water vapor separation, the reaction temperature at which the first separated water content is equal to the separated water content threshold is the minimum temperature achieved by the engine when using engine oil with a predetermined water content. Therefore, the engine temperature can reach the minimum temperature, and engine oil with a predetermined water content will not cause engine wear. Otherwise, the water content of the engine oil needs to be controlled to be less than the predetermined water content, thereby solving the problem that it is difficult to determine the water separation performance of the engine after the engine oil is emulsified in the prior art, which leads to easy engine wear. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A hardware structure block diagram of a mobile terminal for performing a simulation test method for water separation performance of emulsified engine oil according to an embodiment of the present application is shown;

[0016] Figure 2 A schematic diagram of a simulation test device according to an embodiment of the present application is shown;

[0017] Figure 3 A flowchart of a simulation test method for water separation performance of emulsified engine oil according to an embodiment of the present application is shown;

[0018] Figure 4 A flowchart of a simulation test method for water separation performance of emulsified engine oil according to an embodiment of the present application is shown;

[0019] Figure 5 A flow diagram of another simulation test method for water separation performance after engine oil emulsification is shown according to an embodiment of the present application.

[0020] Figure 6 A structural block diagram of a simulation test device for water separation performance after engine oil emulsification is shown according to an embodiment of the present application.

[0021] Among the above drawings, the following reference signs are included:

[0022] 102, processor; 104, memory; 106, transmission device; 108, input and output device; 10, liquid storage device; 20, reaction device; 21, nozzle; 30, measuring device; 40, water storage device; 50, pump. DETAILED DESCRIPTION

[0023] It should be noted that the embodiments and features 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 drawings and in combination with the embodiments.

[0024] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in 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 belong to the scope of protection of the present application.

[0025] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application and the above drawings are used to distinguish similar objects, and do not necessarily indicate 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.

[0026] As introduced in the background, it is difficult to determine the water separation performance of the engine after the engine oil emulsification in the prior art, which leads to easy engine wear. To solve this technical problem, the embodiments of the present application provide a simulation test method, device, computer program product and simulation test system for water separation performance after engine oil emulsification.

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] 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 This is a hardware structure block diagram of a mobile terminal for a simulation test method of the water separation performance of an engine oil emulsified 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) a processor 102 (the processor 102 may include but is not limited to a microprocessor MCU or a programmable logic device FPGA and other processing devices) and a memory 104 for storing data, wherein the mobile terminal may also include a transmission device 106 and an input and output device 108 for communication functions. It will 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 than shown, or with Figure 1 Different configurations shown.

[0029] Memory 104 can be used to store computer programs, such as application software programs and modules, such as the computer program corresponding to the simulation test method for the water separation performance of emulsified engine oil in the embodiment of the present invention. Processor 102 executes the computer programs stored in memory 104 to execute various functional applications and data processing, thereby implementing the aforementioned method. Memory 104 may include high-speed random access memory (RAM) and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, memory 104 may further include memory remotely located from processor 102, and such remote memory may be connected to the mobile terminal via a network. Examples of such networks include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof. Transmission device 106 is used to receive or transmit data via a network. Specific examples of such networks may include a wireless network provided by the mobile terminal's telecommunications provider. In one example, transmission device 106 includes a network interface controller (NIC), which can be connected to other network devices via a base station to enable communication 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.

[0030] A simulation test method for water separation performance of emulsified engine oil is provided in the embodiment, which is run on a mobile terminal, a computer terminal or a similar computing device, as shown in Figure 2 The simulation test device includes a liquid storage device 10, a reaction device 20 and a measuring device 30 connected in sequence, the liquid storage device 10 is used to store emulsified engine oil, the reaction device 20 is used to adjust the temperature to simulate the environment of the engine oil during engine operation, and the measuring device 30 is used to measure the water content separated from the emulsified engine oil. It should be noted that the steps shown in the flowchart of the drawing 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 a different order from here.

[0031] Figure 3 The flowchart of the simulation test method for water separation performance of emulsified engine oil according to the embodiment of the application is shown in Figure 3 The method includes the following steps:

[0032] Step S201, adjusting the reaction temperature of the reaction device;

[0033] Specifically, the reaction device adjusts the temperature to simulate the environment of the engine oil during engine operation, so as to simulate the water separation performance of the engine at different temperatures.

[0034] Step S202, controlling the liquid storage device to deliver the engine oil with a predetermined water content to the reaction device;

[0035] Specifically, as shown in Figure 2 The simulation test device further includes a water storage device 40, a pump 50 and a nozzle 21, one pump 50 is installed on the pipeline between the water storage device 40 and the liquid storage device 10, and one pump 50 is installed on the pipeline between the measuring device 30 and the liquid storage device 10, the water storage device 40 adds water to the engine oil in the liquid storage device 10 through the pump 50 to adjust the water content of the engine oil in the liquid storage device to the predetermined water content, and the other pump 50 delivers the engine oil with the predetermined water content in the liquid storage device 10 to the reaction device, the engine oil is atomized into different states through the nozzle, simulating the state of the engine oil flowing through different positions during engine operation, and the atomized components are output from the top of the reaction device to the measuring device.

[0036] Step S203, controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, the separated water content is the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content;

[0037] Specifically, the water in the reaction device evaporates to the measuring device, and the measuring device measures the separated water to obtain a first separated water content, i.e., a ratio of a mass of the separated water to a mass of the water in the oil with the predetermined water content.

[0038] In step S204, in a case where the reaction time of the reaction device is equal to a maximum water separation time of the engine and the first separated water content is equal to a separated water content threshold, the current reaction temperature is determined as a minimum temperature of the engine when the oil with the predetermined water content is used, and the maximum water separation time is a maximum time for which the engine separates water from the oil.

[0039] Specifically, the longer the reaction time, the more water evaporates. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, the first separated water content at this time is the maximum separated water content. If the first separated water content is greater than or equal to the separated water content threshold, water separation balance is achieved. The higher the temperature, the easier it is to achieve water separation balance. If the first separated water content is equal to the separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the oil with the predetermined water content is used.

[0040] In the simulation test method for the water separation performance of the emulsified oil, the reaction temperature of the reaction device is adjusted to simulate the environment of the oil in the engine during operation. The measuring device can measure the separated water content of the separated water in the reaction device in real time to obtain the first separated water content. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, if the first separated water content is greater than or equal to the separated water content threshold, it indicates that the water separation performance is qualified, and the oil will not be emulsified after water separation to cause engine wear. That is, the engine can achieve water separation balance when the engine separates water from the oil with the predetermined water content at the current reaction temperature. Since the higher the temperature, the easier it is to achieve water evaporation separation, the reaction temperature at which the first separated water content is equal to the separated water content threshold is the minimum temperature of the engine when the oil with the predetermined water content is used. The engine temperature can reach the minimum temperature, and the oil with the predetermined water content will not cause engine wear. Otherwise, the water content of the oil needs to be controlled to be less than the predetermined water content, thereby solving the problem that it is difficult to determine the water separation performance of the engine after the oil is emulsified in the prior art, which leads to easy engine wear.

[0041] To ensure that the water separation performance is qualified, in an optional embodiment, as shown in FIG. 6, the reaction device includes a temperature control device 601, a reaction device 602, a measuring device 603, and a liquid storage device 604. Figure 4In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the current reaction temperature is determined to be the minimum temperature of the engine when the engine oil with the predetermined water content is used, and after the reaction temperature of the reaction device is adjusted, the method includes:

[0042] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0043] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0044] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0045] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0046] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0047] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0048] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0049] In the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold, the first control step controls the reaction device to deliver the engine oil after water separation to the liquid storage device and controls the liquid storage device to add a predetermined amount of water.

[0050] In order to prevent the oil stratification, in an optional embodiment, before adjusting the storage temperature of the storage device and the reaction temperature of the reaction device, the method further comprises:

[0051] Step S401, adjusting the storage temperature of the storage device until the oil of the predetermined water content stratifies.

[0052] Step S402, determining the maximum storage temperature of the oil of the predetermined water content in the storage device as the maximum ambient temperature of the engine when the oil of the predetermined water content is used.

[0053] Step S403, issuing an ambient temperature overheat warning if the ambient temperature of the engine is greater than the maximum ambient temperature.

[0054] In the above embodiment, water in the oil may stratify, and whether stratification occurs is related to the ambient temperature. By adjusting the storage temperature of the storage device until the oil of the predetermined water content stratifies, the maximum storage temperature of the oil of the predetermined water content without stratification, i.e. the maximum ambient temperature, can be obtained. If the ambient temperature exceeds the maximum ambient temperature, an ambient temperature overheat warning is issued, and the oil can be replaced to reduce the water content to prevent oil stratification. The predetermined water content corresponds to the maximum ambient temperature.

[0055] In order to prevent the oil stratification before testing, in an optional embodiment, before adjusting the storage temperature of the storage device and the reaction temperature of the reaction device, the method further comprises:

[0056] Step S501, adjusting the storage temperature of the storage device so that the storage temperature of the storage device is less than the maximum ambient temperature.

[0057] In the above embodiment, the storage temperature of the storage device is adjusted so that the storage temperature of the storage device is less than the maximum ambient temperature to prevent the oil stratification before testing from causing inaccurate test results.

[0058] In order to prevent the oil stratification before testing, in an optional embodiment, after controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, the method further comprises:

[0059] Step S601, determining that the oil of the predetermined water content cannot reach water separation equilibrium if the minimum temperature is greater than the maximum temperature of the engine.

[0060] In the above embodiment, the higher the water content in the engine oil, the higher the temperature required to achieve water separation balance. When the above minimum temperature is greater than the maximum temperature of the engine, it indicates that the engine temperature cannot reach the minimum temperature required to achieve water separation balance, and the engine using the engine oil with the predetermined water content will have wear and tear problems. Therefore, the engine oil needs to be replaced to reduce the water content in the engine oil.

[0061] To prevent engine wear and tear, in an alternative embodiment, when the above minimum temperature is greater than the maximum temperature of the engine, and it is determined that the engine oil with the above predetermined water content cannot achieve water separation balance, the method comprises:

[0062] Step S701, reduce the above predetermined water content until the above minimum temperature is equal to the maximum temperature of the engine, and determine that the current above predetermined water content is the maximum water content of the engine oil of the engine;

[0063] Step S702, if the water content of the engine oil in the engine oil storage device is greater than the above maximum water content, issue an engine oil replacement reminder.

[0064] In the above embodiment, the above predetermined water content is reduced, thereby reducing the minimum temperature corresponding to the predetermined water content, until the above minimum temperature is equal to the maximum temperature of the engine. The current above predetermined water content is the maximum water content of the engine oil of the engine. If the water content of the engine oil in the engine oil storage device is greater than the above maximum water content, it indicates that the engine cannot achieve water separation balance of the engine oil, which will cause engine wear and tear. Therefore, an engine oil replacement reminder is issued to prevent engine wear and tear.

[0065] To simulate the process of adding water to the engine oil during circulation, in an alternative embodiment, as shown in Figure 2 The simulation test device further comprises a water storage device 40 connected to the liquid storage device 10. The step S301 comprises:

[0066] Step S3011, control the water storage device to add the above predetermined amount of water to the liquid storage device.

[0067] In the above embodiment, the water storage device 40 adds water to the engine oil in the liquid storage device 10 through the pump 50, simulates the process of adding water to the engine oil during circulation when the engine is actually running, and further detects the water separation performance of the engine oil during circulation.

[0068] In order to enable those skilled in the art to more clearly understand the technical solutions of the present application, the implementation process of the simulation test method for the water separation performance of the engine oil after emulsification will be described in detail below with specific examples.

[0069] The embodiment relates to a simulation test method for water separation performance of emulsified engine oil, as shown in the following steps. Figure 5

[0070] Step S1: different water content engine oils are placed in a liquid storage device, different temperatures are controlled, and constant stirring is performed to simulate the state of the engine oil in the oil sump, the engine oil is pumped to a reaction device through a pumping device, the reaction device can be set to different temperatures and pressures, the engine oil is atomized into different states through a nozzle, the atomized components are output from the top end of the reaction device to a measuring device, the water content of the separated water is measured through the measuring device, and the condensed liquid engine oil is collected at the bottom of the reaction device and returned to the liquid storage device through an oil return pipe;

[0071] Step S2: a water storage device is added to simulate the continuous addition of water during the engine operation process, and water can be extracted from the water storage device to the liquid storage device according to different reaction conditions;

[0072] Step S3: the initial water content in the engine oil is set, the liquid storage temperature and the reaction temperature are continuously adjusted for testing until the separated water content is greater than or equal to 80%, or the water separation balance is reached under the condition that water is continuously added, then the test is stopped, and the maximum reaction duration corresponding to the minimum temperature and the maximum environmental temperature are determined;

[0073] Step S4: then different water contents are set to repeat the test until the separated water content cannot be greater than or equal to 80%, or the water separation balance cannot be reached under the condition that water is continuously added, so that the maximum water content in the engine oil is determined as a control condition to determine whether the engine oil needs to be replaced.

[0074] 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 herein can be executed in an order different from that shown.

[0075] The embodiment of the present application also provides a simulation test device for water separation performance of emulsified engine oil. It should be noted that the simulation test device for water separation performance of emulsified engine oil of the embodiment of the present application can be used to execute the simulation test method for water separation performance of emulsified engine oil provided by the embodiment of the present application. The device is used to realize the above-mentioned embodiment and preferred embodiment, and will not be described again. 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, the realization of hardware, or a combination of software and hardware, is also possible and conceived.

[0076] ​The simulation test device for water separation performance of emulsified engine oil according to the embodiment of the present application is introduced as follows. The simulation test device comprises a liquid storage device 10, a reaction device 20 and a measuring device 30 connected in sequence. The liquid storage device 10 is used for storing emulsified engine oil. The reaction device 20 is used for adjusting temperature to simulate the environment of the engine oil during engine operation. The measuring device 30 is used for measuring the water content of the separated emulsified engine oil.

[0077] Figure 6 is a structural block diagram of the simulation test device for water separation performance of emulsified engine oil according to the embodiment of the present application. As shown in Figure 6 , the device comprises:

[0078] A first adjusting unit 100 is configured to adjust the reaction temperature of the reaction device.

[0079] Specifically, the reaction device adjusts the temperature to simulate the environment of the engine oil during engine operation, so as to simulate the water separation performance of the engine at different temperatures.

[0080] A first control unit 200 is configured to control the liquid storage device to deliver the engine oil with a predetermined water content to the reaction device.

[0081] Specifically, as shown in Figure 2 , the simulation test device further comprises a water storage device 40, a pump 50 and a nozzle 21. One pump 50 is installed on the pipeline between the water storage device 40 and the liquid storage device 10, and another pump 50 is installed on the pipeline between the measuring device 30 and the liquid storage device 10. The water storage device 40 adds water to the engine oil in the liquid storage device 10 through the pump 50 to adjust the water content of the engine oil in the liquid storage device to the predetermined water content. The other pump 50 delivers the engine oil with the predetermined water content in the liquid storage device 10 to the reaction device. The engine oil is atomized into different states through the nozzle to simulate the state of the engine oil flowing through different positions during engine operation. The atomized components are output from the top end of the reaction device to the measuring device.

[0082] A second control unit 300 is configured to control the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content. The separated water content is the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content.

[0083] Specifically, the water in the reaction device evaporates to the measuring device. The measuring device measures the separated water to obtain the first separated water content, which is the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content.

[0084] The first determination unit 400 is configured to determine the current reaction temperature of the reaction device as the minimum temperature of the engine using the oil with the predetermined water content when the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, wherein the maximum water separation time is the maximum time for the engine to separate water from the oil.

[0085] Specifically, the longer the reaction time, the more water evaporates. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, the first separated water content at this time is the maximum separated water content. If the first separated water content is greater than or equal to the separated water content threshold, the water separation balance is achieved. The higher the temperature, the easier it is to achieve water separation balance. If the first separated water content is equal to the separated water content threshold, the current reaction temperature of the reaction device is determined as the minimum temperature of the engine using the oil with the predetermined water content.

[0086] In the simulation test device for the water separation performance of the emulsified oil, the reaction temperature of the reaction device is adjusted to simulate the environment of the oil in the engine during operation. The liquid storage device is used to deliver the oil with the predetermined water content to the reaction device. The first separated water content is obtained by measuring the separated water content in the reaction device in real time. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, if the first separated water content is greater than or equal to the separated water content threshold, it indicates that the water separation performance is qualified, and the oil will not be emulsified after water separation, which will cause engine wear. That is, the engine can achieve water separation balance when the oil with the predetermined water content is separated at the current reaction temperature. Since the higher the temperature, the easier it is to achieve water evaporation separation, the reaction temperature at which the first separated water content is equal to the separated water content threshold is the minimum temperature of the engine using the oil with the predetermined water content. The engine temperature can reach the minimum temperature, and the oil with the predetermined water content will not cause engine wear. Otherwise, the water content of the oil needs to be controlled to be less than the predetermined water content, which solves the problem that it is difficult to determine the water separation performance of the engine after the oil is emulsified in the prior art, which leads to engine wear.

[0087] To ensure that the water separation performance is qualified, in an optional embodiment, as shown in Figure 4 The device comprises:

[0088] a third control unit configured to perform the first control step, and control the reaction device to deliver the separated water from the engine oil to the storage device and control the storage device to add a predetermined amount of water in the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold value;

[0089] a second adjustment unit configured to perform the adjustment step, and adjust the reaction temperature of the reaction device;

[0090] a fourth control unit configured to perform the second control step, and control the storage device to deliver the current emulsified engine oil to the reaction device;

[0091] a fifth control unit configured to perform the third control step, and control the measurement device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a second separated water content;

[0092] an acquisition unit configured to perform the acquisition step, and acquire the current reaction temperature to obtain an updated reaction temperature in the case where the reaction time of the reaction device is equal to the maximum water separation time and the second separated water content is equal to the separated water content threshold value;

[0093] an update unit configured to perform the update step, and update the minimum temperature to the updated reaction temperature in the case where the updated reaction temperature is greater than the minimum temperature;

[0094] a repetition unit configured to sequentially repeat the first control step, the adjustment step, the second control step, the third control step, the acquisition step, and the update step at least once until the number of repetitions reaches a predetermined number of times.

[0095] In the embodiment, in the case where the reaction time of the reaction device is equal to the maximum water separation time of the engine and the separated water content is equal to the separated water content threshold value, the current temperature is the minimum temperature at which the water separation balance is reached, but one measurement cannot represent that the water separation performance is qualified, and multiple water additions are required to test the water separation performance multiple times. After multiple water additions, the water separation performance is qualified, and the maximum value of the minimum temperature measured multiple times is the minimum temperature at which the water separation performance is reached, that is, the updated reaction temperature. The temperature of the engine reaching the updated reaction temperature can ensure that the engine oil with the predetermined water content will not be emulsified to affect the lubrication properties of the engine oil, and further cause the engine to wear.

[0096] In order to prevent the engine oil from being stratified, in an optional embodiment, the device further comprises:

[0097] a third adjusting unit, configured to adjust the storage temperature of the storage device until the oil of the predetermined water content is stratified, before adjusting the storage temperature of the storage device and the reaction temperature of the reaction device;

[0098] a second determining unit, configured to determine the maximum ambient temperature of the engine using the oil of the predetermined water content as the maximum storage temperature of the oil of the predetermined water content without stratification in the storage device;

[0099] a first early warning unit, configured to issue an early warning of an excessively high ambient temperature when the ambient temperature of the engine is greater than the maximum ambient temperature.

[0100] In the embodiment, stratification of the oil may occur due to water content in the oil, and whether stratification occurs is related to the ambient temperature. The storage temperature of the storage device is adjusted until the oil of the predetermined water content is stratified, so that the maximum storage temperature of the oil of the predetermined water content without stratification, i.e., the maximum ambient temperature, is obtained. If the ambient temperature exceeds the maximum ambient temperature, an early warning of an excessively high ambient temperature is issued, and the oil can be replaced to reduce the water content to prevent stratification of the oil. The predetermined water content and the maximum ambient temperature correspond to each other.

[0101] To prevent stratification of the oil before testing, in an optional embodiment, the device further comprises:

[0102] a fourth adjusting unit, configured to adjust the storage temperature of the storage device to be less than the maximum ambient temperature before adjusting the storage temperature of the storage device and the reaction temperature of the reaction device.

[0103] In the embodiment, the storage temperature of the storage device is adjusted to be less than the maximum ambient temperature to prevent inaccurate test results caused by stratification of the oil before testing.

[0104] To prevent stratification of the oil before testing, in an optional embodiment, the device further comprises:

[0105] a third determining unit, configured to determine that the oil of the predetermined water content cannot reach water separation equilibrium after the first separated water content is obtained by controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time when the minimum temperature is greater than the maximum temperature of the engine.

[0106] In the above embodiment, the higher the water content in the engine oil, the higher the temperature required to achieve water separation balance, the above minimum temperature is greater than the maximum temperature of the engine, indicating that the engine temperature cannot reach the minimum temperature to achieve water separation balance, and the engine using the engine oil with the predetermined water content will have engine wear problems, so the engine oil needs to be replaced to reduce the water content in the engine oil.

[0107] To prevent engine wear, in an alternative embodiment, the device comprises:

[0108] A fourth adjusting unit is configured to, in the case that the above minimum temperature is greater than the maximum temperature of the engine, determine that the engine oil with the predetermined water content cannot reach water separation balance, and then reduce the predetermined water content until the above minimum temperature is equal to the maximum temperature of the engine, and determine that the current predetermined water content is the maximum water content of the engine oil of the engine.

[0109] A second warning unit is configured to, in the case that the water content of the engine oil in the engine oil storage device is greater than the maximum water content, issue an engine oil replacement reminder.

[0110] In the above embodiment, the predetermined water content is reduced, thereby reducing the minimum temperature corresponding to the predetermined water content, until the above minimum temperature is equal to the maximum temperature of the engine, and the current predetermined water content is the maximum water content of the engine oil of the engine. If the water content of the engine oil in the engine oil storage device is greater than the maximum water content, it indicates that the engine cannot achieve water separation balance of the engine oil, which will cause engine wear, so an engine oil replacement reminder is issued to prevent engine wear.

[0111] To simulate the process of adding water to the engine oil during circulation, in an alternative embodiment, as shown in Figure 2 The simulation test device further comprises a water storage device 40 connected to the liquid storage device 10, and the third control unit comprises:

[0112] A control module is configured to control the water storage device to add the predetermined amount of water to the liquid storage device.

[0113] In the above embodiment, the water storage device 40 adds water to the engine oil in the liquid storage device 10 through the pump 50 to simulate the process of adding water to the engine oil during circulation when the engine is actually running, so as to further detect the water separation performance of the engine oil when water is added during circulation.

[0114] The simulation test device for the water separation performance of the engine oil after emulsification comprises a processor and a memory, the first adjusting unit, the first control unit, the second control unit and the first determining unit are stored in the memory as program units, and the corresponding functions are realized by executing the program units stored in the memory by the processor. The modules are located in the same processor, or the modules are located in different processors in any combination.

[0115] The processor comprises a core, and the core retrieves the corresponding program unit from the memory. The core can be one or more, and the problem that the engine wear is prone to occur due to the difficulty in determining the water separation performance of the engine after emulsification of the engine oil in the prior art is solved by adjusting the core parameters.

[0116] 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 comprises at least one memory chip.

[0117] The embodiment of the present application provides a computer readable storage medium, which comprises a stored program, wherein the program controls a device where the computer readable storage medium is located to execute the simulation test method for the water separation performance of the engine oil after emulsification when the program runs.

[0118] Specifically, the simulation test method for the water separation performance of the engine oil after emulsification comprises the following steps.

[0119] In step S201, the reaction temperature of the reaction device is adjusted.

[0120] In step S202, the liquid storage device is controlled to deliver the engine oil with a predetermined water content to the reaction device.

[0121] In step S203, the measuring device is controlled to measure the separated water content corresponding to the separated water in the reaction device in real time, and a first separated water content is obtained, and the separated water content is a ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content.

[0122] In step S204, when the reaction time length of the reaction device is equal to the maximum water separation time length of the engine and the first separated water content is equal to a separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the engine oil with the predetermined water content is used, and the maximum water separation time length is the maximum time length for the engine to separate water from the engine oil.

[0123] The embodiment of the present application provides a processor used for running a program, wherein the processor is used for running the program to perform the simulation test method of the water separation performance of the emulsified engine oil.

[0124] Specifically, the simulation test method of the water separation performance of the emulsified engine oil comprises the following steps.

[0125] In step S201, the reaction temperature of the reaction device is adjusted.

[0126] In step S202, the liquid storage device is controlled to deliver the engine oil with the predetermined water content to the reaction device.

[0127] In step S203, the measuring device is controlled to measure the separated water content corresponding to the separated water in the reaction device in real time, and a first separated water content is obtained, wherein the separated water content is the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content.

[0128] In step S204, when the reaction duration of the reaction device is equal to the maximum water separation duration of the engine and the first separated water content is equal to a separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the engine oil with the predetermined water content is used, and the maximum water separation duration is the maximum duration of the water separation of the engine on the engine oil.

[0129] The embodiment of the present application provides a simulation test system, which comprises a simulation test device, one or more processors, a memory and one or more programs, wherein the simulation test device comprises a liquid storage device, a reaction device and a measuring device connected in sequence, the liquid storage device is used for storing the emulsified engine oil, the reaction device is used for adjusting the temperature to simulate the environment of the engine oil during the running of the engine, the measuring device is used for measuring the water content separated from the emulsified engine oil, 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 implement at least the following steps.

[0130] In step S201, the reaction temperature of the reaction device is adjusted.

[0131] In step S202, the liquid storage device is controlled to deliver the engine oil with the predetermined water content to the reaction device.

[0132] In step S203, the measuring device is controlled to measure the separated water content corresponding to the separated water in the reaction device in real time, and a first separated water content is obtained, wherein the separated water content is the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content.

[0133] Step S204, in the case that the reaction duration of the reaction device is equal to the maximum water separation duration of the engine and the first separated water content is equal to the separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the oil with the predetermined water content is used, and the maximum water separation duration is the maximum duration of water separation of the engine on the oil.

[0134] The application also provides a computer program product, which is adapted to execute the program of the following method steps when executed on a data processing device:

[0135] Step S201, adjusting the reaction temperature of the reaction device;

[0136] Step S202, controlling the liquid storage device to deliver the oil with the predetermined water content to the reaction device;

[0137] Step S203, controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time, and obtaining the first separated water content, wherein the separated water content is the ratio of the mass of the separated water to the mass of the water in the oil with the predetermined water content;

[0138] Step S204, in the case that the reaction duration of the reaction device is equal to the maximum water separation duration of the engine and the first separated water content is equal to the separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the oil with the predetermined water content is used, and the maximum water separation duration is the maximum duration of water separation of the engine on the oil.

[0139] Obviously, those skilled in the art should understand that the modules or steps of the application 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, and they can be realized by program codes executable by the computing devices, so that they can be stored in storage devices and executed by the computing devices, and in some cases, the steps shown or described can be executed in different orders, or they can be manufactured into individual integrated circuit modules, or multiple modules or steps can be manufactured into a single integrated circuit module. Thus, the application is not limited to any specific combination of hardware and software.

[0140] Those skilled in the art will appreciate that embodiments of the present application can be readily used as software, hardware, or a combination of software and hardware. In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0141] The 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 functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for performing each of the functions specified in the flowchart block or blocks.

[0142] 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 functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for performing each of the functions specified in the flowchart block or blocks.

[0143] The 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 functions specified in the flowchart block or blocks. Figure 1 one or more functions specified in the flowchart block or blocks. Figure 1 means for performing each of the functions specified in the flowchart block or blocks.

[0144] In a typical configuration, a computing device includes one or more processors (CPUs), input / output interfaces, network interfaces, and memory.

[0145] 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 a read only memory (ROM) device, a floppy disk, a flexible disk, hard disk, or a tape, cloud storage, flash memory card, or another suitable data storage device. The memory stores a data processing application, in accordance with an embodiment of the present application.

[0146] Computer-readable media includes permanent and non-permanent, movable and non-movable media that can be implemented by any method or technology to store information. The 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 technologies, compact disc read-only memory (CD-ROM), digital versatile disc (DVD) or other optical storage, magnetic cassette, magnetic tape disk storage or other magnetic storage devices, or any other non-transmission medium that can be used to store information accessible by a computing device. According to the definition herein, computer-readable media does not include transitory media such as modulated data signals and carriers.

[0147] It should also be noted that the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusion, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0148] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0149] 1) In the simulation test method for the water separation performance of the emulsified engine oil according to the application, the reaction temperature of the reaction device is adjusted to simulate the environment in which the engine oil is located when the engine is running, and the liquid storage device is controlled to deliver engine oil with a predetermined water content to the reaction device. The separation water content corresponding to the separated water in the reaction device can be measured in real time by the measuring device to obtain the first separation water content. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, if the first separation water content is greater than or equal to the separation water content threshold, it indicates that the water separation performance is qualified, and the engine oil will not be emulsified after water separation to cause engine wear. That is, the engine can achieve water separation balance when the engine separates water from the engine oil with the predetermined water content at the current reaction temperature. Since the higher the temperature, the easier it is to achieve water vapor separation, the reaction temperature at which the first separation water content is equal to the separation water content threshold is the minimum temperature achieved by the engine when using engine oil with the predetermined water content. In order for the engine temperature to reach the minimum temperature, engine oil with the predetermined water content must be used to prevent engine wear. Otherwise, the water content of the engine oil must be controlled to not reach the predetermined water content, thereby solving the problem of engine wear caused by the difficulty in determining the water separation performance of the engine after the engine oil is emulsified in the prior art.

[0150] 2) In the simulation test device for the water separation performance of the emulsified engine oil according to the application, the reaction temperature of the reaction device is adjusted to simulate the environment in which the engine oil is located when the engine is running, and the liquid storage device is controlled to deliver engine oil with a predetermined water content to the reaction device. The separation water content corresponding to the separated water in the reaction device can be measured in real time by the measuring device to obtain the first separation water content. When the reaction time of the reaction device is equal to the maximum water separation time of the engine, if the first separation water content is greater than or equal to the separation water content threshold, it indicates that the water separation performance is qualified, and the engine oil will not be emulsified after water separation to cause engine wear. That is, the engine can achieve water separation balance when the engine separates water from the engine oil with the predetermined water content at the current reaction temperature. Since the higher the temperature, the easier it is to achieve water vapor separation, the reaction temperature at which the first separation water content is equal to the separation water content threshold is the minimum temperature achieved by the engine when using engine oil with the predetermined water content. In order for the engine temperature to reach the minimum temperature, engine oil with the predetermined water content must be used to prevent engine wear. Otherwise, the water content of the engine oil must be controlled to not reach the predetermined water content, thereby solving the problem of engine wear caused by the difficulty in determining the water separation performance of the engine after the engine oil is emulsified in the prior art.

[0151] The above only describes the preferred embodiments of the application and is not intended to limit the application. Those skilled in the art can make various changes and modifications to the application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the application shall be included in the protection scope of the application.

Claims

1. A method of simulating the water separation performance after engine oil emulsification, characterized in that, The method is realized by a simulation test device, the simulation test device comprises a liquid storage device, a reaction device and a measuring device connected in sequence, the liquid storage device is used for storing the emulsified engine oil, the reaction device is used for adjusting the temperature to simulate the environment of the engine oil during the operation of the engine, and the measuring device is used for measuring the water content of the separated emulsified engine oil, and the method comprises: adjusting the reaction temperature of the reaction device; controlling the liquid storage device to deliver the engine oil with the predetermined water content to the reaction device; controlling the measuring device to measure the separated water content corresponding to the separated water content in the reaction device in real time to obtain a first separated water content, and the separated water content is a ratio of the mass of the separated water content to the mass of the water content in the engine oil with the predetermined water content; in the case that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, the current reaction temperature is determined as the minimum temperature of the engine when the engine oil with the predetermined water content is used.

2. The method of claim 1, wherein, After the current reaction temperature is determined as the minimum temperature of the engine when the engine oil with the predetermined water content is used in the case that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, the method comprises: a first control step, in the case that the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to the separated water content threshold, the reaction device is controlled to deliver the engine oil after the separation of water to the liquid storage device, and the liquid storage device is controlled to add a predetermined mass of water; an adjusting step of adjusting the reaction temperature of the reaction device; a second control step of controlling the liquid storage device to deliver the current emulsified engine oil to the reaction device; a third control step of controlling the measuring device to measure the separated water content corresponding to the separated water content in the reaction device in real time to obtain a second separated water content; an acquisition step of acquiring the current reaction temperature to obtain an updated reaction temperature in the case that the reaction time of the reaction device is equal to the maximum water separation time and the second separated water content is equal to the separated water content threshold; an updating step of updating the minimum temperature to the updated reaction temperature in the case that the updated reaction temperature is greater than the minimum temperature; sequentially repeating the first control step, the adjusting step, the second control step, the third control step, the acquisition step and the updating step at least once until the number of repetitions reaches a predetermined number of times.

3. The method of claim 1, wherein, Before adjusting the liquid storage temperature of the liquid storage device and the reaction temperature of the reaction device, the method further comprises: adjusting the liquid storage temperature of the liquid storage device until the engine oil with the predetermined water content is stratified; determining the maximum liquid storage temperature of the engine oil with the predetermined water content in the liquid storage device as the maximum ambient temperature of the engine when the engine oil with the predetermined water content is used; when the ambient temperature of the engine is greater than the maximum ambient temperature, issuing an ambient temperature overheat warning.

4. The method of claim 3, wherein, Before adjusting the liquid storage temperature of the liquid storage device and the reaction temperature of the reaction device, the method further comprises: adjusting the liquid storage temperature of the liquid storage device so that the liquid storage temperature of the liquid storage device is less than the maximum ambient temperature.

5. The method according to any one of claims 1 to 4, characterized in that, After controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, the method further comprises: when the minimum temperature is greater than the maximum temperature of the engine, determining that the engine oil with the predetermined water content cannot reach water separation equilibrium.

6. The method of claim 5, wherein, After determining that the engine oil with the predetermined water content cannot reach water separation equilibrium when the minimum temperature is greater than the maximum temperature of the engine, the method comprises: reducing the predetermined water content until the minimum temperature is equal to the maximum temperature of the engine, and determining that the current predetermined water content is the maximum water content of the engine oil; when the water content of the engine oil in the engine oil storage device is greater than the maximum water content, issuing an engine oil replacement reminder.

7. The method of claim 2, wherein, The simulation test device further comprises a water storage device connected with the liquid storage device, and the water storage device is controlled to add a predetermined mass of water, comprising: controlling the water storage device to add the predetermined mass of water to the liquid storage device.

8. A simulation test device for water separation performance after engine oil emulsification, characterized by, The device comprises a simulation test device, which comprises a liquid storage device, a reaction device and a measuring device connected in sequence, the liquid storage device is used to store emulsified engine oil, the reaction device is used to adjust the temperature to simulate the environment of the engine oil when the engine is running, and the measuring device is used to measure the water content separated from the emulsified engine oil, and the device further comprises: a first adjusting unit for adjusting the reaction temperature of the reaction device; a first control unit for controlling the liquid storage device to deliver the engine oil with a predetermined water content to the reaction device; a second control unit for controlling the measuring device to measure the separated water content corresponding to the separated water in the reaction device in real time to obtain a first separated water content, the separated water content being the ratio of the mass of the separated water to the mass of the water in the engine oil with the predetermined water content; a first determining unit for determining the current reaction temperature as the minimum temperature of the engine when the engine oil with the predetermined water content is used when the reaction time of the reaction device is equal to the maximum water separation time of the engine and the first separated water content is equal to a separated water content threshold.

9. A computer program product comprising a computer program, characterized in that, The computer program is executed by a processor to implement the method of any one of claims 1 to 7.

10. An emulation test system, comprising: comprising: An emulating test device, one or more processors, a memory, and one or more programs, wherein the emulating test device comprises a liquid storage device, a reaction device, and a measuring device connected in sequence, the liquid storage device is used to store emulsified engine oil, the reaction device is used to adjust the temperature to simulate the environment in which the engine oil is located when the engine is running, and the measuring device is used to measure the water content of the emulsified engine oil separated out, 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 are used to implement the method of any one of claims 1 to 7.

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