Processing method, device and equipment of engine oil water content model and vehicle

Abstract

The invention relates to the field of vehicle control, and provides an engine oil water content model processing method and device, equipment and a vehicle. The method comprises the steps that under various working conditions of a first constant engine oil temperature, engine oil water content increasing data in the engine operation process are determined; under various working conditions of the second constant engine oil temperature, engine oil water content evaporation data in the operation process of the engine are determined; and constructing an engine oil water content model capable of determining the engine oil water content change rate according to the engine oil water content increase data and the engine oil water content evaporation data. Therefore, the engine oil water content change rate can be determined according to the working condition and the engine oil temperature by utilizing the engine oil water content model, and whether the current water content of the engine oil is in an increasing stage or a decreasing stage is determined according to the engine oil water content change rate, so that the engine oil water content is accurately determined without additionally arranging a sensor; the method is suitable for engine oil water content detection of various vehicle engines and is wide in application range.

Description

Technical Field

[0001] The present application relates to the field of vehicle control technology, and in particular to a method, device, equipment and vehicle for processing an engine oil water content model. Background Art

[0002] The water content of the engine oil may change as the engine runs, and this change is generally detected by sensors installed inside the engine.

[0003] However, some engines do not have sensors installed inside. In this case, how to detect changes in the amount of oil water replacement has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] In view of this, the purpose of the present application is to propose a method, device, equipment and vehicle for processing an engine oil water content model, so as to solve the technical problem of how an engine without a sensor can detect changes in the amount of water changed in the engine oil.

[0005] Based on the above purpose, the present application provides a method for processing an engine oil water content model, comprising:

[0006] Determining the oil water content growth data during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold;

[0007] determining the evaporation data of the water content in the oil during the operation of the engine under various operating conditions of the second constant oil temperature, wherein the second constant oil temperature comprises: at least one oil temperature value greater than or equal to an oil temperature threshold;

[0008] An engine oil water content model capable of determining the rate of change of the engine oil water content is constructed according to the engine oil water content growth data and the engine oil water content evaporation data.

[0009] Effect: It is determined that the engine is operating at a first constant oil temperature less than the oil temperature threshold. During the operation of the engine under various working conditions, the water content of the oil will gradually increase, so the oil water content growth data under various working conditions is detected; the engine is also allowed to operate at a second constant oil temperature greater than or equal to the oil temperature threshold. During the operation of the engine under various working conditions, the water content of the oil will gradually evaporate and decrease, so the oil water content evaporation data under various working conditions is detected; in this way, the detected oil water content growth data that can represent the trend of increasing oil water content and the oil water content evaporation data that can represent the trend of decreasing oil water content evaporation can be combined to construct an oil water content model that can determine the rate of change of oil water content, and determine whether the current water content of the oil is in an increasing stage or a decreasing stage based on the oil water content change rate, and then accurately determine the oil water content based on the oil water content change rate, and there is no need to add sensors at all. It can be applicable to the oil water content detection of various vehicle engines and has a wide range of applications.

[0010] In some embodiments, constructing an engine oil water content model capable of determining the rate of change of engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data includes:

[0011] Constructing a water content growth data graph according to the first constant oil temperature, the first operating condition information and the oil water content growth rate extracted from the oil water content growth data;

[0012] Constructing a water content evaporation data graph according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate extracted from the oil water content evaporation data;

[0013] The water content growth data graph and the water content evaporation data graph are integrated to establish an engine oil water content model capable of determining the rate of change of the engine oil water content.

[0014] Effect: It is possible to construct a water content growth data graph and a water content evaporation data graph. These two data graphs represent different changes in water content. Because the two data are constructed separately, they will not be confused, making the two constructed data graphs more accurate. Then, the two data graphs are integrated to construct an oil water content model that can accurately determine the rate of change of oil water content.

[0015] In some embodiments, it also includes:

[0016] Get the current operating condition, current oil temperature and current running time of the engine;

[0017] Inputting the current operating condition and the current engine oil temperature into an engine oil water content model for processing, and outputting a current engine oil water content change rate;

[0018] Determining a current change in the water content in the engine oil according to the current change rate of the water content in the engine oil and the current running time;

[0019] The change in the oil water content is summed with the initial oil water content to obtain the current oil water content, wherein the initial oil water content is the oil water content determined in the previous cycle, and the current oil water content is used as the initial oil water content in the next cycle;

[0020] In response to the current engine oil water content being greater than a first water content threshold, an engine oil maintenance strategy is initiated to reduce the current engine oil water content, and the engine oil maintenance strategy is exited after a strategy exit condition is met.

[0021] Effect: The oil water content model can be used to accurately obtain the current oil water content change rate, and then determine the current oil water content change amount based on the current oil water content change rate. After summing with the initial oil water content, the accurate current oil water content can be obtained. After the current oil water content is greater than the first water content threshold, in order to avoid excessive oil water content affecting engine operation, the oil maintenance strategy will be started to reduce the oil water content. In order to avoid the oil maintenance strategy from running all the time, the strategy exit condition will be set. After the strategy exit condition is met, the oil maintenance strategy will be exited to ensure the normal operation of the engine.

[0022] In some embodiments, the inputting the current operating condition and the current engine oil temperature into an engine oil water content model for processing and outputting the current engine oil water content change rate includes:

[0023] Inputting the current operating condition and the current engine oil temperature into an engine oil water content model, and determining a target data graph corresponding to the current engine oil temperature from a water content growth data graph and a water content evaporation data graph of the engine oil water content model;

[0024] In the oil water content model, according to the target data graph, the current oil water content change rate corresponding to the current operating condition and the current oil temperature is determined and output.

[0025] Effect: If the current engine oil temperature falls within the range corresponding to the first constant engine oil temperature, the water content growth data graph will be selected as the target data graph; if the current engine oil temperature falls within the range corresponding to the second constant engine oil temperature, the water content evaporation data graph will be selected as the target data graph; according to the graph of the target data graph, the current engine oil water content change rate corresponding to the current operating conditions and the current engine oil temperature is searched, and the current engine oil water content change rate is sent to the output port of the output layer for output, thereby achieving the purpose of obtaining the accurate current engine oil water content change rate using the engine oil water content model.

[0026] In some embodiments, in response to the current engine oil water content being greater than a first water content threshold, starting an engine oil maintenance strategy to reduce the current engine oil water content, and exiting the engine oil maintenance strategy after a strategy exit condition is met, includes:

[0027] In response to the current oil water content being greater than or equal to a first oil content threshold, the vehicle speed being greater than or equal to the first vehicle speed threshold, and the oil temperature being greater than or equal to a first temperature threshold, starting an oil maintenance strategy for continuous engine operation to keep the oil temperature greater than or equal to the first temperature threshold, and performing oil water evaporation to reduce the current oil water content;

[0028] In response to at least one of the current engine oil water content being less than or equal to a second water content threshold, the vehicle speed being less than or equal to a second vehicle speed threshold, and the engine oil temperature being less than or equal to a second temperature threshold, controlling the engine to exit the engine oil maintenance strategy;

[0029] Among them, the second water content threshold is smaller than the first water content threshold, the second vehicle speed threshold is smaller than the first vehicle speed threshold, and the second temperature threshold is smaller than the first temperature threshold.

[0030] Effect: When the current oil water content is greater than or equal to the first water content threshold, the vehicle speed is greater than or equal to the first vehicle speed threshold, and the oil temperature is greater than or equal to the first temperature threshold, the oil maintenance strategy for continuous operation of the engine is started. The starting conditions of the above three oil maintenance strategies need to be met before the oil maintenance strategy can be started to allow the engine to continue running, and the oil temperature can be kept at or above the first temperature threshold to allow the water in the oil to fully evaporate; when the current oil water content is less than or equal to the second water content threshold, the vehicle speed is less than or equal to the second vehicle speed threshold, and the oil temperature is less than or equal to the second temperature threshold, the oil maintenance strategy will be exited if any of these three conditions is met, which can ensure the normal operation of the engine; through clearer oil maintenance strategy start conditions and strategy exit conditions, the start and exit of the oil maintenance strategy is controlled, thereby ensuring that the oil maintenance strategy is executed or exited under the premise of normal engine operation, avoiding energy waste or abnormal engine operation.

[0031] In some embodiments, a heater is provided in the engine;

[0032] The starting of the engine oil maintenance strategy to reduce the current engine oil water content and exiting the engine oil maintenance strategy after the strategy exit condition is met includes:

[0033] After the oil maintenance strategy is started for a predetermined period of time, the current operating condition of the engine and the current oil temperature are input into the oil water content model for processing to obtain a new current oil water content change rate;

[0034] Determine whether the new current oil water content change rate is less than or equal to a change rate threshold, and obtain a determination result;

[0035] In response to the judgment result being yes, the engine oil maintenance strategy is kept running, and the engine oil maintenance strategy is exited after a strategy exit condition is met; or,

[0036] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and after the current engine oil water content determined according to the new current engine oil water content change rate is less than or equal to the second water content threshold, the engine oil maintenance strategy is exited and the heater heating is stopped; or,

[0037] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and when the current engine oil water content determined according to the new current engine oil water content change rate is greater than the second water content threshold, and the vehicle speed is less than or equal to the second vehicle speed threshold, and the engine oil temperature is less than or equal to the second temperature threshold, the engine oil maintenance strategy is exited.

[0038] Effect: If the judgment result is no, and the strategy exit condition is not met at this time, it proves that the new current oil water content change rate cannot reach the normal oil water content reduction situation, and it is necessary to start the heater set in the cylinder to assist in heating the oil, thereby accelerating the rate of reduction of the oil water content, so that the oil water content can meet the normal operation requirements as soon as possible; if the corresponding strategy exit condition is that the current oil water content determined according to the new current oil water content change rate is less than or equal to the second water content threshold, it proves that the oil water content has returned to normal at this time, and the oil maintenance strategy and the heater do not need to continue to be executed, and the oil maintenance strategy will be exited and the heater heating will be stopped; if the determined current oil water content is greater than the second water content threshold, it satisfies any of the strategy exit conditions of the vehicle speed being less than or equal to the second vehicle speed threshold, and the oil temperature being less than or equal to the second temperature threshold, it proves that the oil maintenance strategy cannot continue to be executed, and the oil maintenance strategy will be exited. However, in order to further reduce the water content of the engine oil, the heater will continue to perform continuous heating until the current water content of the engine oil is less than or equal to the second water content threshold. When the water content of the engine oil returns to the normal operating level, the heater will stop heating; this allows the heater and the oil maintenance strategy to cooperate with each other, so that the water content of the engine oil can be reduced to a normal level as soon as possible.

[0039] In some embodiments, it also includes:

[0040] During the process of starting the oil maintenance strategy, the startup time of the oil maintenance strategy is counted;

[0041] In response to the startup duration being greater than a duration threshold, it is determined that a fault exists in the vehicle engine, the engine oil maintenance strategy is exited, and a fault prompt is given.

[0042] Effect: If the oil maintenance strategy is continuously activated for a period longer than the duration threshold, it proves that there is an engine fault. At this time, the oil maintenance strategy will be exited, and the engine operating parameters will be obtained to determine the specific type of engine fault. The corresponding fault type will be output while the fault prompt is given so that the user can be informed in time and make corresponding repairs to the engine, avoiding the situation where the oil maintenance strategy is continuously executed due to engine fault, affecting the normal use of the vehicle.

[0043] Based on the same inventive concept, the present application also provides a processing device for an engine oil water content model, comprising:

[0044] The water content growth collection module is configured to determine the oil water content growth data during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold;

[0045] a water content evaporation collection module configured to determine the oil water content evaporation data during the operation of the engine under various operating conditions of a second constant oil temperature, wherein the second constant oil temperature includes: at least one oil temperature value greater than or equal to an oil temperature threshold;

[0046] The model building module is configured to build an engine oil water content model capable of determining the rate of change of the engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data.

[0047] In some embodiments, the model building module is specifically configured to:

[0048] Constructing a water content growth data graph according to the first constant oil temperature, the first operating condition information and the oil water content growth rate extracted from the oil water content growth data;

[0049] Constructing a water content evaporation data graph according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate extracted from the oil water content evaporation data;

[0050] The water content growth data graph and the water content evaporation data graph are integrated to establish an engine oil water content model capable of determining the rate of change of the engine oil water content.

[0051] In some embodiments, the apparatus further comprises:

[0052] An acquisition module is configured to acquire a current operating condition, a current oil temperature, and a current operating time of the engine;

[0053] An input module, configured to input the current operating condition and the current engine oil temperature into an engine oil water content model for processing, and output a current engine oil water content change rate;

[0054] a change amount calculation module, configured to determine a current change amount of the oil water content of the engine according to the current oil water content change rate and the current running time;

[0055] a summing module configured to sum the oil water content change and the initial oil water content to obtain the current oil water content, wherein the initial oil water content is the oil water content determined in the previous cycle, and use the current oil water content as the initial oil water content in the next cycle;

[0056] The strategy control module is configured to initiate an engine oil maintenance strategy to reduce the current engine oil water content in response to the current engine oil water content being greater than a first water content threshold, and exit the engine oil maintenance strategy after a strategy exit condition is met.

[0057] In some embodiments, the policy control module is specifically configured to:

[0058] Inputting the current operating condition and the current engine oil temperature into an engine oil water content model, and determining a target data graph corresponding to the current engine oil temperature from a water content growth data graph and a water content evaporation data graph of the engine oil water content model;

[0059] In the oil water content model, according to the target data graph, the current oil water content change rate corresponding to the current operating condition and the current oil temperature is determined and output.

[0060] In some embodiments, the policy control module is specifically configured to:

[0061] In response to the current oil water content being greater than or equal to a first oil content threshold, the vehicle speed being greater than or equal to the first vehicle speed threshold, and the oil temperature being greater than or equal to a first temperature threshold, starting an oil maintenance strategy for continuous engine operation to keep the oil temperature greater than or equal to the first temperature threshold, and performing oil water evaporation to reduce the current oil water content;

[0062] In response to at least one of the current engine oil water content being less than or equal to a second water content threshold, the vehicle speed being less than or equal to a second vehicle speed threshold, and the engine oil temperature being less than or equal to a second temperature threshold, controlling the engine to exit the engine oil maintenance strategy;

[0063] Among them, the second water content threshold is smaller than the first water content threshold, the second vehicle speed threshold is smaller than the first vehicle speed threshold, and the second temperature threshold is smaller than the first temperature threshold.

[0064] In some embodiments, the policy control module is specifically configured to:

[0065] After the oil maintenance strategy is started for a predetermined period of time, the current operating condition of the engine and the current oil temperature are input into the oil water content model for processing to obtain a new current oil water content change rate;

[0066] Determine whether the new current oil water content change rate is less than or equal to a change rate threshold, and obtain a determination result;

[0067] In response to the judgment result being yes, the engine oil maintenance strategy is kept running, and the engine oil maintenance strategy is exited after a strategy exit condition is met; or,

[0068] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and after the current engine oil water content determined according to the new current engine oil water content change rate is less than or equal to the second water content threshold, the engine oil maintenance strategy is exited and the heater heating is stopped; or,

[0069] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and when the current engine oil water content determined according to the new current engine oil water content change rate is greater than the second water content threshold, and the vehicle speed is less than or equal to the second vehicle speed threshold, and the engine oil temperature is less than or equal to the second temperature threshold, the engine oil maintenance strategy is exited.

[0070] In some embodiments, the apparatus further comprises a fault detection module configured to:

[0071] During the process of starting the oil maintenance strategy, the startup time of the oil maintenance strategy is counted;

[0072] In response to the startup duration being greater than a duration threshold, it is determined that a fault exists in the vehicle engine, the engine oil maintenance strategy is exited, and a fault prompt is given.

[0073] Based on the same inventive concept, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable by the processor, wherein the processor implements the method as described above when executing the computer program.

[0074] Based on the same inventive concept, the present application also provides a vehicle, comprising the device as described above or the electronic device as described above.

[0075] From the above, it can be seen that the processing method, device, equipment and vehicle of the oil water content model provided by the present application determine that the engine is operating at a first constant oil temperature less than the oil temperature threshold. During the operation of the engine under various working conditions, the oil water content will gradually increase, so the oil water content growth data under various working conditions are detected; the engine is also allowed to operate at a second constant oil temperature greater than or equal to the oil temperature threshold. During the operation of the engine under various working conditions, the oil water content will gradually evaporate and decrease, so the oil water content evaporation data under various working conditions are detected. In this way, the detected engine oil water content growth data that can represent the increasing trend of engine oil water content and the engine oil water content evaporation data that can represent the decreasing trend of engine oil water content evaporation can be combined to construct an engine oil water content model that can determine the rate of change of engine oil water content, and determine whether the current water content of the engine oil is in an increasing stage or a decreasing stage according to the engine oil water content change rate, and then accurately determine the oil water content according to the engine oil water content change rate. There is no need to add sensors at all, and the model can be applied to engine oil water content detection of various vehicle engines, with a wide range of applications. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] In order to more clearly illustrate the technical solutions in the present application or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0077] Figure 1 Schematic diagram of the principle of increasing the water content of the oil in the engine cylinder;

[0078] Figure 2 A flow chart of a method for processing a water content model of engine oil according to an embodiment of the present application;

[0079] Figure 3 A specific application flow chart of the oil water content model in the oil water content model processing method of the embodiment of the present application;

[0080] Figure 4 A schematic diagram of a map based on four dimensions of engine water temperature, torque and speed of engine operating conditions, and water content in engine oil according to an embodiment of the present application;

[0081] Figure 5 This is a schematic diagram of a specific application of the oil water content model of an embodiment of the present application;

[0082] Figure 6 It is a structural block diagram of a processing device for a water content model of engine oil according to an embodiment of the present application;

[0083] Figure 7A schematic diagram of the structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0084] In order to make the objectives, technical solutions and advantages of the present application more clearly understood, the present application is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0085] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present application should be the usual meanings understood by people with ordinary skills in the field to which the present application belongs. The "first", "second" and similar words used in the embodiments of the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "comprising" and similar words mean that the elements or objects appearing in front of the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0086] like Figure 1 As shown in the figure, during the operation of the engine, the direct injection engine fuel injection hits the wall, forming an oil film on the cylinder wall, and the fuel vapor condenses to form water droplets. The mixed gas in the cylinder of the engine leaks into the crankcase through the gap between the piston ring and the piston, the gap between the piston ring opening, etc., causing water to dissolve in the engine oil, increase the oil, and then dilute the oil to increase the water content of the oil. If the engine is always running under the condition of high water content in the oil, the engine will be easily damaged. Therefore, it is necessary to accurately detect the change of water content in the engine oil.

[0087] Based on the above description, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0088] The processing method of the oil water content model proposed in the embodiment of the present application is as follows: Figure 2 As shown, the method includes:

[0089] Step 101, determining the growth data of the water content in the oil during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold value.

[0090] In specific implementation, the first constant oil temperature is a fixed temperature value less than the oil temperature threshold. The oil temperature threshold (for example, 70°C) is the temperature value at which the water in the oil can evaporate and reduce. At the first constant oil temperature, the water content of the oil will increase during operation.

[0091] New engine oil is added to the engine at a first constant oil temperature (for example, 0°C), and various engine operating conditions (the operating condition is the engine operating condition determined based on torque and speed) are changed. After the engine runs for a certain period of time (for example, 20 minutes, 30 minutes or 40 minutes, or other set time lengths), the water content of the engine oil is measured, and the growth rate of the water content is calculated, and the growth rate of the water content is associated with the corresponding running time and the corresponding operating conditions.

[0092] Then change the first constant oil temperature value (for example, change it to -10°C, 10°C, 20°C, 30°C, 40°C, 50°C, 60°C or 69°C) and re-test according to the above scheme, and then obtain the water content growth rate corresponding to various operating conditions under each changed first constant oil temperature value.

[0093] The first constant engine oil temperature values ​​and the water content growth rates under various operating conditions at corresponding operating times are combined to obtain engine oil water content growth data.

[0094] Step 102, determining the evaporation data of the oil water content during the operation of the engine under various operating conditions of a second constant oil temperature, wherein the second constant oil temperature includes: at least one oil temperature value greater than or equal to an oil temperature threshold.

[0095] In a specific implementation, the second constant engine oil temperature is a fixed temperature value greater than or equal to an engine oil temperature threshold value. At the second constant engine oil temperature, water will evaporate during the operation of the engine oil, thereby reducing the water content.

[0096] New engine oil is added to the engine at a second constant oil temperature (for example, 80°C), the various operating conditions of the engine are changed (the operating condition is the engine operating condition determined based on the torque and speed), and the engine is allowed to run for a certain period of time (for example, 20 minutes, 30 minutes or 40 minutes, or other set time lengths), and then the water content of the engine oil is measured, and the evaporation rate (i.e., reduction rate) of the water content is calculated, and the evaporation rate of the water content is associated with the corresponding running time and the corresponding operating conditions.

[0097] Then, the second constant oil temperature value is changed (for example, changed to 70° C., 90° C. or 100° C.) and retested according to the above scheme to obtain the water content evaporation rate corresponding to various working conditions under each changed second constant oil temperature value.

[0098] The second constant engine oil temperature values ​​and the water content evaporation rates under various operating conditions at corresponding operating times are combined to obtain engine oil water content evaporation data.

[0099] Step 103: constructing an engine oil water content model capable of determining the rate of change of the engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data.

[0100] In specific implementation, the oil water content growth data corresponding to each first constant oil temperature value and the oil water content evaporation data corresponding to each second constant oil temperature value are combined and stored in a set database, and this database is added to the oil water content model to obtain the oil water content model that can determine the oil water content change rate.

[0101] Subsequently, the oil water content model can be used to input the corresponding oil temperature value and operating conditions, and the corresponding predicted oil water content change rate can be output. Then, based on the oil water content change rate, the change in oil water content can be known, and the corresponding oil water content can be further calculated, so as to analyze the engine operation according to the oil water content.

[0102] Through the above scheme, the engine is placed at a first constant oil temperature less than the oil temperature threshold. During the operation of the engine under various working conditions, the water content of the oil will gradually increase, so the oil water content growth data under various working conditions are detected; the engine is also placed at a second constant oil temperature greater than or equal to the oil temperature threshold. During the operation of the engine under various working conditions, the water content of the oil will gradually evaporate and decrease, so the oil water content evaporation data under various working conditions are detected; in this way, the detected oil water content growth data that can represent the trend of increasing oil water content and the oil water content evaporation data that can represent the trend of decreasing oil water content evaporation can be combined to construct an oil water content model that can determine the oil water content change rate, and determine whether the current oil water content is in an increasing stage or a decreasing stage based on the oil water content change rate, and then accurately determine the oil water content based on the oil water content change rate, without the need to add sensors at all, and can be applicable to oil water content detection of various vehicle engines, with a wide range of applications.

[0103] In some embodiments, step 103 includes:

[0104] Step 1031, constructing a water content growth data graph according to the first constant oil temperature, the first operating condition information and the oil water content growth rate extracted from the oil water content growth data.

[0105] In specific implementation, a four-dimensional water content growth data graph can be constructed based on the first constant oil temperature, the first operating condition information and the oil water content growth rate. For example, under the first operating time, the first constant oil temperature is used as the horizontal axis, the speed in the first operating condition information is used as the vertical axis, and the torque in the first operating condition information is used as the vertical axis. The corresponding oil water content growth rate is marked with different colors to obtain a water content growth data graph.

[0106] Step 1032: construct a water content evaporation data graph according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate extracted from the oil water content evaporation data.

[0107] In specific implementation, a four-dimensional water content evaporation data graph can be constructed according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate. For example, under the second operating time, the second constant oil temperature is used as the horizontal axis, the speed in the second operating condition information is used as the vertical axis, and the torque in the second operating condition information is used as the vertical axis. The corresponding oil water content evaporation rate is marked with different colors to obtain a water content evaporation data graph.

[0108] Step 1033, integrating the water content growth data graph with the water content evaporation data graph to establish an engine oil water content model capable of determining the rate of change of the engine oil water content.

[0109] In the specific implementation, the water content growth data graph and the water content evaporation data graph are superimposed according to the corresponding running time to form an integrated water content change data graph, and then the water content change data graph is encapsulated in the oil water content model, and the input port and output port are set for the oil water content model. The corresponding input ports include: oil temperature input port and working condition information input port, which are used to input oil temperature, working condition information and running time respectively. Then, the data that can be input into the oil water content model are matched and analyzed with the integrated water content change data graph to determine the oil water content change rate corresponding to the input data. If the oil water content change rate is a positive value, it proves that it is the oil water content growth rate, and the oil water content is in an increasing state at this time; if it is a negative value, it proves that it is the oil water content evaporation rate, and the oil water content is in a decreasing state at this time; if it is 0, it proves that the oil water content remains stable and has not changed.

[0110] Through the above scheme, it is possible to construct a water content growth data graph and a water content evaporation data graph. These two data graphs represent different changes in water content. Because the two data are constructed separately, they will not be confused, making the two constructed data graphs more accurate. Then, the two data graphs are integrated to construct an oil water content model that can accurately determine the rate of change of oil water content.

[0111] In some preferred embodiments, an initial oil water content model including an input layer, a storage layer and an output layer is pre-constructed. The input layer includes: an oil temperature input port and an operating condition information input port, and each input port is connected to the corresponding dimension of the storage layer. The storage layer is used to store the multi-dimensional data graph after the integration of the water content growth data graph and the water content evaporation data graph (including: oil temperature dimension, operating condition information dimension and water content change rate dimension) or directly store the water content growth data graph and the water content evaporation data graph. The output layer is provided with an output port, which is connected to the water content change rate dimension of the storage layer.

[0112] In this way, the data input from each input port of the input layer can be searched and matched in the corresponding dimension of the storage layer, and then the most matching moisture content change rate can be found and output through the output port of the output layer.

[0113] In some preferred embodiments, after the oil water content model is constructed, it will be stored in the vehicle's engine controller, and then the engine controller can use the oil water content model to determine the oil water content change rate, and then calculate the corresponding oil water content, and then control the engine operation according to the oil water content. The specific execution process of steps 104 to 108 of the following embodiment is as follows.

[0114] In some embodiments, Figure 3 As shown, the method also includes:

[0115] Step 104, obtaining the current operating condition, current oil temperature and current operating time of the engine.

[0116] In specific implementation, the current operating conditions include: the current engine speed and torque, which are directly retrieved from the engine controller; the current oil temperature is detected by at least one temperature sensor arranged in the cylinder; the current running time is the accumulated time of the engine running starting from the time when new engine oil is added, wherein if the engine stops running, the accumulation of time will stop.

[0117] Step 105 , input the current operating condition and the current engine oil temperature into an engine oil water content model for processing, and output the current engine oil water content change rate.

[0118] In specific implementation, the current working condition of the engine and the current oil temperature will be continuously input into the above-mentioned constructed oil water content model from the corresponding input port. The oil water content model will search for the current oil water content change rate corresponding to the current working condition and the current oil temperature from the stored integrated data map, and output the current oil water content change rate from the output port.

[0119] In addition, a time cycle is set, and each time cycle is a predetermined interval (for example, 1s, 2s, or 3s). In this way, the current operating conditions of the engine and the current oil temperature are input into the oil water content model in each cycle to determine the current oil water content change rate corresponding to each cycle. Thus, the purpose of periodically and continuously determining the current oil water content change rate is achieved.

[0120] Step 106, determining the current change in the water content in the engine oil according to the current rate of change in the water content in the engine oil and the current operating time.

[0121] In specific implementation, after obtaining the current oil water content change rate, the current oil water content change rate can be integrated according to the current running time and the time period of the corresponding cycle to obtain the oil water content change amount in the corresponding time period.

[0122] For example, the oil water content model is used periodically to determine the current oil water content change rate, so that the current oil water content change rate can be integrated according to the predetermined interval of the cycle, and the oil water content change amount of the current cycle can be accurately obtained.

[0123] Step 107, summing the change in the oil water content and the initial oil water content to obtain the current oil water content, wherein the initial oil water content is the oil water content determined in the previous cycle, and the current oil water content is used as the initial oil water content of the next cycle.

[0124] In specific implementation, the initial value of the initial oil water content is 0. After each cycle, the current oil water content will be used as the initial oil water content calculated at the next cycle. The current oil water content of the current cycle can be obtained by summing the calculated change in oil water content of the current cycle and the initial oil water content obtained at the previous cycle.

[0125] Step 108 , in response to the current engine oil water content being greater than a first water content threshold, starting an engine oil maintenance strategy to reduce the current engine oil water content, and exiting the engine oil maintenance strategy after a strategy exit condition is met.

[0126] In specific implementation, if the current oil water content is greater than the set first water content threshold, it proves that the oil water content is too high, which will affect the operation of the engine, and the oil maintenance strategy needs to be activated to reduce the current oil water content. During the implementation of the oil maintenance strategy, it will be detected in real time whether the vehicle meets the strategy exit conditions. If the strategy exit conditions are met, the oil maintenance strategy will be controlled to exit.

[0127] Among them, the corresponding oil maintenance strategies include:

[0128] Use a heater to heat the engine oil and evaporate the water inside the oil to reduce the water content of the oil;

[0129] Using a water absorption device (which does not absorb engine oil) to absorb water inside the engine oil to reduce the water content of the engine oil;

[0130] Allow the engine to continue running to maintain a high temperature for the oil to evaporate water and reduce the water content in the oil.

[0131] The strategy exit conditions include: the real-time detected oil water content is less than or equal to the second water content threshold, or other vehicle operating conditions that conflict with the execution of the oil maintenance strategy.

[0132] Through the above scheme, the oil water content model can be used to accurately obtain the current oil water content change rate, and then the current oil water content change amount can be determined based on the current oil water content change rate, and the current oil water content change amount can be obtained by summing it with the initial oil water content. After the current oil water content is greater than the first water content threshold, in order to avoid excessive oil water content affecting engine operation, the oil maintenance strategy will be started to reduce the oil water content, and in order to avoid the oil maintenance strategy from running all the time, the strategy exit condition will be set. After the strategy exit condition is met, the oil maintenance strategy will be exited to ensure the normal operation of the engine.

[0133] In some embodiments, step 105 includes:

[0134] Step 1051, input the current operating condition and the current engine oil temperature into an engine oil water content model, and determine a target data graph corresponding to the current engine oil temperature from the water content growth data graph and the water content evaporation data graph of the engine oil water content model.

[0135] In specific implementation, after the current working condition and the current oil temperature are input into the oil water content model, the oil water content model will select from the water content growth data graph and the water content evaporation data graph in the storage layer according to the current oil temperature. If the current oil temperature falls within the range corresponding to the first constant oil temperature, the water content growth data graph will be selected as the target data graph; if the current oil temperature falls within the range corresponding to the second constant oil temperature, the water content evaporation data graph will be selected as the target data graph.

[0136] Step 1052, determining the current oil water content change rate corresponding to the current operating condition and the current oil temperature in the oil water content model according to the target data graph and outputting the result.

[0137] In specific implementation, the storage layer of the oil water content model then searches for the current oil water content change rate corresponding to the current operating condition and the current oil temperature according to the graph of the target data graph, and sends the current oil water content change rate to the output port of the output layer for output.

[0138] Through the above scheme, the oil water content model can be used to obtain the accurate current oil water content change rate.

[0139] In some embodiments, step 108 includes:

[0140] Step 1081, in response to satisfying the conditions that the current oil water content is greater than or equal to the first oil content threshold, the vehicle speed is greater than or equal to the first vehicle speed threshold, and the oil temperature is greater than or equal to the first temperature threshold, starting the engine continuous operation oil maintenance strategy to keep the oil temperature greater than or equal to the first temperature threshold, and evaporating the oil water to reduce the current oil water content.

[0141] In specific implementation, the starting conditions of the corresponding oil maintenance strategy are:

[0142] The current engine oil water content is greater than or equal to a first water content threshold (eg, 10%), indicating that the current engine oil water content is relatively high and will affect the normal operation of the engine; and,

[0143] The vehicle speed must be greater than or equal to a first vehicle speed (e.g., 15 km / h), and it is demonstrated that the vehicle can keep the engine running to maintain a higher vehicle speed greater than or equal to the first vehicle speed; and,

[0144] The oil temperature is greater than or equal to the first temperature threshold (for example, 65°C), which proves that the oil temperature has reached a temperature at which it can evaporate. Continuous operation of the engine can maintain the oil temperature at a level greater than or equal to the first temperature threshold. If the oil temperature is less than the first temperature threshold, even if the engine continues to run and the oil temperature increases a little, the water in the oil cannot evaporate, which wastes energy.

[0145] Therefore, the starting conditions of the above three oil maintenance strategies must be met before the oil maintenance strategy can be started, the engine can continue to run, and the oil temperature can be maintained at or above the first temperature threshold to allow the water in the oil to fully evaporate, thereby reducing the water content of the oil.

[0146] Step 1082, in response to satisfying at least one of the following conditions: the current oil water content is less than or equal to the second water content threshold, the vehicle speed is less than or equal to the second vehicle speed threshold, and the oil temperature is less than or equal to the second temperature threshold, controlling the engine to exit the oil maintenance strategy.

[0147] Among them, the second water content threshold is smaller than the first water content threshold, the second vehicle speed threshold is smaller than the first vehicle speed threshold, and the second temperature threshold is smaller than the first temperature threshold.

[0148] When implemented specifically, the corresponding policy exit conditions are:

[0149] The current engine oil water content is less than or equal to the second water content threshold (for example, 3%), indicating that the current engine oil water content has returned to normal and there is no need to continue to execute the engine oil maintenance strategy; or,

[0150] The vehicle speed is less than or equal to the second vehicle speed threshold (for example, 10 km / h), which indicates that the vehicle speed is low and the engine needs to stop running to achieve the purpose of a lower vehicle speed. Therefore, the engine cannot continue to run under the condition of a low vehicle speed, and the oil maintenance strategy needs to be stopped; or,

[0151] The engine oil temperature is less than or equal to the second temperature threshold (for example, 63°C), which proves that the engine oil temperature is low and the water in the engine oil cannot evaporate. Continuing to execute the engine oil maintenance strategy will not evaporate the water in the engine oil, so there is no need to execute the engine oil maintenance strategy.

[0152] If any of the above three conditions is met, the oil maintenance strategy will be exited to ensure the normal operation of the engine.

[0153] Through the above scheme, the start and exit of the oil maintenance strategy can be controlled through more specific start conditions and strategy exit conditions of the oil maintenance strategy, thereby ensuring that the oil maintenance strategy is executed or exited under the premise of normal engine operation, avoiding energy waste or abnormal engine operation.

[0154] In some embodiments, a heater is provided in the engine;

[0155] The starting of the engine oil maintenance strategy in step 108 reduces the current engine oil water content, and exits the engine oil maintenance strategy after the strategy exit condition is met, including:

[0156] Step A1, after the oil maintenance strategy is started for a predetermined time, the current operating condition of the engine and the current oil temperature are input into the oil water content model for processing to obtain a new current oil water content change rate.

[0157] In specific implementation, after the oil maintenance strategy is started for a predetermined time, if the strategy exit condition is not met, the oil maintenance strategy is still started, and it is possible that the oil maintenance strategy has no effect on reducing the water content in the oil. Therefore, the current operating conditions of the engine and the current oil temperature are obtained and input into the oil water content model. Similarly, the new current oil water content change rate after the start-up for a predetermined time is obtained according to the process of step 105 above.

[0158] Step A2, determining whether the new current rate of change of the oil water content is less than or equal to a rate of change threshold, and obtaining a determination result.

[0159] In specific implementation, a change rate threshold (e.g., -0.01 or -0.03) is preset. In order to identify whether the oil maintenance strategy can reduce water evaporation, the set change rate threshold is a negative value. In this way, it is determined whether the new current oil water content change rate is less than or equal to the change rate threshold, thereby obtaining an accurate judgment result.

[0160] Step A3, in response to the judgment result being yes, maintaining the oil maintenance strategy in operation, and exiting the oil maintenance strategy after a strategy exit condition is met.

[0161] In specific implementation, if the judgment result is yes, the new current oil water content change rate is a negative value, and the absolute value of the new current oil water content change rate is greater than or equal to the change rate threshold, it proves that the oil maintenance strategy can reduce the oil water content, and the reduction rate is relatively high. At this time, the oil maintenance strategy can be kept running, and the oil maintenance strategy can be exited after the strategy exit condition is met.

[0162] Alternatively, in step A4, in response to the judgment result being no, the heater is controlled to start heating the engine oil, and after the current engine oil water content determined according to the new current engine oil water content change rate is less than or equal to the second water content threshold, the engine oil maintenance strategy is exited and the heater heating is stopped.

[0163] Alternatively, in step A5, in response to the judgment result being no, the heater is controlled to start heating the engine oil, and when the current engine oil water content determined according to the new current engine oil water content change rate is greater than the second water content threshold, and the vehicle speed is less than or equal to the second vehicle speed threshold, and the engine oil temperature is less than or equal to the second temperature threshold, the engine oil maintenance strategy is exited.

[0164] During specific implementation, if the judgment result is no and the strategy exit condition is not met at this time, it proves that the new current oil water content change rate cannot achieve the normal reduction in oil water content, and it is necessary to start the heater installed in the cylinder to assist in heating the oil, thereby accelerating the rate of reduction of oil water content, so that the oil water content can meet the normal operation requirements as soon as possible.

[0165] If the corresponding strategy exit condition is that the current oil water content determined based on the new current oil water content change rate is less than or equal to the second water content threshold, it proves that the oil water content has returned to normal at this time, and the oil maintenance strategy and heater do not need to continue to be executed, the oil maintenance strategy will be exited and the heater will stop heating.

[0166] If the current oil water content is greater than the second water content threshold, and any of the exit conditions of the strategy is met, namely, the vehicle speed is less than or equal to the second vehicle speed threshold, and the oil temperature is less than or equal to the second temperature threshold, it is proved that the oil maintenance strategy cannot continue to be executed, and the oil maintenance strategy will be exited. However, in order to further reduce the oil water content, the heater will continue to perform continuous heating until the current oil water content is less than or equal to the second water content threshold, and the oil water content returns to the normal operating level, and the heater will stop heating.

[0167] Through the above solution, the heater and the oil maintenance strategy can cooperate with each other, so that the water content of the oil can be reduced to a normal level as soon as possible.

[0168] In some embodiments, the method further comprises:

[0169] Step 109: during the process of starting the engine oil maintenance strategy, counting the start-up time of the engine oil maintenance strategy.

[0170] Step 110 , in response to the startup duration being greater than a duration threshold, determining that a fault exists in the vehicle engine, exiting the oil maintenance strategy, and providing a fault prompt.

[0171] In specific implementation, if the oil maintenance strategy is continuously activated for a time longer than the time threshold, it proves that there is a fault in the engine. At this time, the oil maintenance strategy will be exited, and the engine operating parameters will be obtained to determine the specific type of engine fault. Then, the corresponding fault type will be output while the fault prompt is given, so that the user can be informed in time and repair the engine accordingly.

[0172] The above solution avoids the situation where the oil maintenance strategy is always executed and affects the normal use of the vehicle due to engine failure.

[0173] In some preferred embodiments, if the oil maintenance strategy cannot be exited after the strategy exit conditions are met, it proves that there is an engine fault. The engine will be forced to stop running, the engine operating parameters will be obtained, and the type of specific engine fault will be determined. The corresponding fault type will be output while the fault prompt is given, so that the user can be informed in time and make corresponding repairs to the engine.

[0174] The following is a specific example to describe the processing method of the oil water content model of the present application, and the execution process is as follows:

[0175] The water content of engine oil is mainly related to the engine water temperature, engine operating conditions, and engine operating time. Identify the common engine operating conditions:

[0176] ① Under different low constant temperatures (-10℃, 0℃, 10℃, 20℃, 30℃, 40℃, 50℃, 60℃, 70℃) and working conditions, use new engine oil, run the engine for 20 minutes, measure the water content of the oil, and find out the water content growth rate.

[0177] ② Under different high constant water temperatures (70℃, 80℃, 90℃, 100℃) and working conditions, mix 10% of the total mass of water into the new engine oil, run it continuously for 120 minutes, take samples every 15 minutes, measure the water content of the engine oil, and calculate the evaporation rate of the water content.

[0178] Finally, a map with four dimensions of engine water temperature, engine operating torque and speed, and oil water content was obtained (such as Figure 4 As shown), a motor oil water content model is formed, and the motor oil water content model is used to accurately determine the rate of change of the motor oil water content, thereby being able to monitor the change of the water content in the motor oil in real time.

[0179] like Figure 5 As shown in the figure, the specific application process of the oil water content model is as follows:

[0180] (1) During the operation of the engine, the torque, speed and oil temperature are input into the oil water content model for processing to determine the oil change rate.

[0181] (2) The oil change rate is integrated according to the cycle length t1 to obtain the oil change amount, and the oil change amount is summed with the initial oil water content (the initial value is 0, and the subsequent value is the oil water content of the previous cycle of the current cycle) to obtain the current oil water content of the current cycle.

[0182] (3) Determine whether ① the current oil water content of the current cycle ≥ the set first water content threshold (e.g., 10%), ② the vehicle speed ≥ the first vehicle speed threshold (e.g., 15 km / h), and ③ the oil temperature ≥ the first temperature threshold (e.g., 65°C); if all three conditions are met, the oil maintenance strategy is started and the engine will continue to run. By continuously running the engine, the oil is kept at a temperature that is conducive to water evaporation, thereby reducing the water content of the oil.

[0183] (4) After the oil maintenance strategy is initiated, the oil water content model is used to determine the current oil water content in real time, and the vehicle speed and oil temperature are obtained in real time. If any of the three strategy exit conditions is met: ① oil temperature ≤ 63°C, ② vehicle speed ≤ 10km / h, ③ current oil water content ≤ 3%, the oil maintenance strategy will be exited.

[0184] It should be noted that the method of the embodiment of the present application can be performed by a single device, such as a computer or server. The method of this embodiment can also be applied to a distributed scenario and completed by multiple devices cooperating with each other. In the case of such a distributed scenario, one of the multiple devices can only perform one or more steps in the method of the embodiment of the present application, and the multiple devices will interact with each other to complete the described method.

[0185] It should be noted that the above describes some embodiments of the present application. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in an order different from that in the above embodiments and still achieve the desired results. In addition, the processes depicted in the accompanying drawings do not necessarily require the specific order or continuous order shown to achieve the desired results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0186] Based on the same inventive concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a processing device for an engine oil water content model.

[0187] refer to Figure 6 , the device comprises:

[0188] The water content growth collection module 201 is configured to determine the oil water content growth data during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold;

[0189] The water content evaporation collection module 202 is configured to determine the oil water content evaporation data during the operation of the engine under various operating conditions of a second constant oil temperature, wherein the second constant oil temperature includes: at least one oil temperature value greater than or equal to an oil temperature threshold;

[0190] The model building module 203 is configured to build an engine oil water content model capable of determining the rate of change of the engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data.

[0191] In some embodiments, the model building module 203 is specifically configured to:

[0192] Constructing a water content growth data graph according to the first constant oil temperature, the first operating condition information and the oil water content growth rate extracted from the oil water content growth data;

[0193] Constructing a water content evaporation data graph according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate extracted from the oil water content evaporation data;

[0194] The water content growth data graph and the water content evaporation data graph are integrated to establish an engine oil water content model capable of determining the rate of change of the engine oil water content.

[0195] In some embodiments, the apparatus further comprises:

[0196] An acquisition module is configured to acquire a current operating condition, a current oil temperature, and a current operating time of the engine;

[0197] An input module, configured to input the current operating condition and the current engine oil temperature into an engine oil water content model for processing, and output a current engine oil water content change rate;

[0198] a change amount calculation module, configured to determine a current change amount of the oil water content of the engine according to the current oil water content change rate and the current running time;

[0199] a summing module configured to sum the oil water content change and the initial oil water content to obtain the current oil water content, wherein the initial oil water content is the oil water content determined in the previous cycle, and use the current oil water content as the initial oil water content in the next cycle;

[0200] The strategy control module is configured to initiate an engine oil maintenance strategy to reduce the current engine oil water content in response to the current engine oil water content being greater than a first water content threshold, and exit the engine oil maintenance strategy after a strategy exit condition is met.

[0201] In some embodiments, the policy control module is specifically configured to:

[0202] Inputting the current operating condition and the current engine oil temperature into an engine oil water content model, and determining a target data graph corresponding to the current engine oil temperature from a water content growth data graph and a water content evaporation data graph of the engine oil water content model;

[0203] In the oil water content model, according to the target data graph, the current oil water content change rate corresponding to the current operating condition and the current oil temperature is determined and output.

[0204] In some embodiments, the policy control module is specifically configured to:

[0205] In response to the current oil water content being greater than or equal to a first oil content threshold, the vehicle speed being greater than or equal to the first vehicle speed threshold, and the oil temperature being greater than or equal to a first temperature threshold, starting an oil maintenance strategy for continuous engine operation to keep the oil temperature greater than or equal to the first temperature threshold, and performing oil water evaporation to reduce the current oil water content;

[0206] In response to at least one of the current engine oil water content being less than or equal to a second water content threshold, the vehicle speed being less than or equal to a second vehicle speed threshold, and the engine oil temperature being less than or equal to a second temperature threshold, controlling the engine to exit the engine oil maintenance strategy;

[0207] Among them, the second water content threshold is smaller than the first water content threshold, the second vehicle speed threshold is smaller than the first vehicle speed threshold, and the second temperature threshold is smaller than the first temperature threshold.

[0208] In some embodiments, the policy control module is specifically configured to:

[0209] After the oil maintenance strategy is started for a predetermined period of time, the current operating condition of the engine and the current oil temperature are input into the oil water content model for processing to obtain a new current oil water content change rate;

[0210] Determine whether the new current oil water content change rate is less than or equal to a change rate threshold, and obtain a determination result;

[0211] In response to the judgment result being yes, the engine oil maintenance strategy is kept running, and the engine oil maintenance strategy is exited after a strategy exit condition is met; or,

[0212] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and after the current engine oil water content determined according to the new current engine oil water content change rate is less than or equal to the second water content threshold, the engine oil maintenance strategy is exited and the heater heating is stopped; or,

[0213] In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and when the current engine oil water content determined according to the new current engine oil water content change rate is greater than the second water content threshold, and the vehicle speed is less than or equal to the second vehicle speed threshold, and the engine oil temperature is less than or equal to the second temperature threshold, the engine oil maintenance strategy is exited.

[0214] In some embodiments, the apparatus further comprises a fault detection module configured to:

[0215] During the process of starting the oil maintenance strategy, the startup time of the oil maintenance strategy is counted;

[0216] In response to the startup duration being greater than a duration threshold, it is determined that a fault exists in the vehicle engine, the engine oil maintenance strategy is exited, and a fault prompt is given.

[0217] For the convenience of description, the above device is described in terms of functions divided into various modules. Of course, when implementing the present application, the functions of each module can be implemented in the same or multiple software and / or hardware.

[0218] The device of the above embodiment is used to implement the corresponding method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0219] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments and methods, the present application also provides an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor implements the method described in any of the above embodiments when executing the program.

[0220] Figure 7 A more specific schematic diagram of the hardware structure of an electronic device provided in this embodiment is shown, and the device may include: a processor 1010, a memory 1020, an input / output interface 1030, a communication interface 1040, and a bus 1050. The processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040 are connected to each other through the bus 1050 in the device.

[0221] The processor 1010 can be implemented by a general-purpose CPU (Central Processing Unit), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits, and is used to execute relevant programs to implement the technical solutions provided in the embodiments of this specification.

[0222] The memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory), static storage device, dynamic storage device, etc. The memory 1020 may store an operating system and other application programs. When the technical solutions provided in the embodiments of this specification are implemented by software or firmware, the relevant program codes are stored in the memory 1020 and are called and executed by the processor 1010.

[0223] The input / output interface 1030 is used to connect the input / output module to realize information input and output. The input / output module can be configured in the device as a component (not shown in the figure), or it can be externally connected to the device to provide corresponding functions. The input device may include a keyboard, a mouse, a touch screen, a microphone, various sensors, etc., and the output device may include a display, a speaker, a vibrator, an indicator light, etc.

[0224] The communication interface 1040 is used to connect a communication module (not shown) to realize communication interaction between the device and other devices. The communication module can realize communication through a wired mode (such as USB, network cable, etc.) or a wireless mode (such as mobile network, WIFI, Bluetooth, etc.).

[0225] The bus 1050 includes a path that transmits information between the various components of the device (eg, the processor 1010, the memory 1020, the input / output interface 1030, and the communication interface 1040).

[0226] It should be noted that, although the above device only shows the processor 1010, the memory 1020, the input / output interface 1030, the communication interface 1040 and the bus 1050, in the specific implementation process, the device may also include other components necessary for normal operation. In addition, it can be understood by those skilled in the art that the above device may also only include the components necessary for implementing the embodiments of the present specification, and does not necessarily include all the components shown in the figure.

[0227] The electronic device of the above embodiment is used to implement the corresponding method in any of the above embodiments, and has the beneficial effects of the corresponding method embodiment, which will not be described in detail here.

[0228] Based on the same inventive concept, corresponding to any of the above-mentioned embodiments, the present application also provides a non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions are used to enable the computer to execute the method described in any of the above embodiments.

[0229] The computer-readable medium of this embodiment includes permanent and non-permanent, removable and non-removable media, and information storage can be implemented by any method or technology. Information can be computer-readable instructions, data structures, modules of programs, or other data. Examples of computer storage media include, but are not limited to, phase change memory (PRAM), static random access memory (SRAM), dynamic random access memory (DRAM), other types of random access memory (RAM), read-only memory (ROM), electrically erasable programmable read-only memory (EEPROM), flash memory or other memory technology, read-only compact disk read-only memory (CD-ROM), digital versatile disk (DVD) or other optical storage, magnetic cassettes, tape disk storage or other magnetic storage devices or any other non-transmission media that can be used to store information that can be accessed by a computing device.

[0230] The computer instructions stored in the storage medium of the above embodiments are used to enable the computer to execute the method described in any of the above embodiments, and have the beneficial effects of the corresponding method embodiments, which will not be repeated here.

[0231] Based on the same concept, corresponding to any of the above-mentioned embodiment methods, the present application also provides a computer program product, including computer program instructions. When the computer program instructions are run on a computer, the computer executes the method described in any of the above embodiments, which has the beneficial effects of the corresponding method embodiments and will not be repeated here.

[0232] Based on the same inventive concept, the present application also provides a vehicle, including the device described in the above embodiment or the electronic device described in the above embodiment. The beneficial effects of the embodiments with the corresponding device or electronic device are not described in detail here.

[0233] It is understandable that before using the technical solutions of each embodiment of the present application, the type, scope of use, usage scenarios, etc. of the personal information involved will be informed to the user in an appropriate manner, and the user's authorization will be obtained.

[0234] For example, in response to receiving an active request from a user, a prompt message is sent to the user to clearly remind the user that the operation requested to be performed will require obtaining and using the user's personal information. Thus, the user can independently choose whether to provide personal information to the electronic device, application, server, storage medium or other software or hardware that performs the operation of the technical solution of the present application according to the prompt message.

[0235] As an optional but non-limiting implementation, in response to receiving the user's active request, the prompt information may be sent to the user in the form of a pop-up window, in which the prompt information may be presented in text form. In addition, the pop-up window may also carry a selection control for the user to choose "agree" or "disagree" to provide personal information to the electronic device.

[0236] It is understandable that the above notification and the process of obtaining user authorization are merely illustrative and do not constitute a limitation on the implementation method of this application. Other methods that meet relevant laws and regulations may also be applied to the implementation method of this application.

[0237] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present application (including the claims) is limited to these examples. In line with the concept of the present application, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the present application as described above, which are not provided in detail for the sake of simplicity.

[0238] In addition, to simplify the description and discussion, and in order not to make the embodiments of the present application difficult to understand, the known power supply / ground connection with the integrated circuit (IC) chip and other components may or may not be shown in the provided drawings. In addition, the device can be shown in the form of a block diagram to avoid making the embodiments of the present application difficult to understand, and this also takes into account the fact that the details of the implementation of these block diagram devices are highly dependent on the platform to be implemented in the embodiments of the present application (that is, these details should be fully within the scope of understanding of those skilled in the art). In the case of elaborating specific details (e.g., circuits) to describe exemplary embodiments of the present application, it is obvious to those skilled in the art that the embodiments of the present application can be implemented without these specific details or when these specific details are changed. Therefore, these descriptions should be considered to be illustrative rather than restrictive.

[0239] Although the present application has been described in conjunction with specific embodiments of the present application, many replacements, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.

[0240] The embodiments of the present application are intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the embodiments of the present application should be included in the scope of protection of the present application.

Claims

1. A method for processing a water content model of engine oil, characterized in that: include: Determining the oil water content growth data during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold; determining the evaporation data of the water content in the oil during the operation of the engine under various operating conditions of the second constant oil temperature, wherein the second constant oil temperature comprises: at least one oil temperature value greater than or equal to an oil temperature threshold; An engine oil water content model capable of determining the rate of change of the engine oil water content is constructed according to the engine oil water content growth data and the engine oil water content evaporation data.

2. The method according to claim 1, characterized in that The step of constructing an engine oil water content model capable of determining the rate of change of the engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data comprises: Constructing a water content growth data graph according to the first constant oil temperature, the first operating condition information and the oil water content growth rate extracted from the oil water content growth data; Constructing a water content evaporation data graph according to the second constant oil temperature, the second operating condition information and the oil water content evaporation rate extracted from the oil water content evaporation data; The water content growth data graph and the water content evaporation data graph are integrated to establish an engine oil water content model capable of determining the rate of change of the engine oil water content.

3. The method according to claim 1 or 2, characterized in that: Also includes: Get the current operating condition, current oil temperature and current running time of the engine; Inputting the current operating condition and the current engine oil temperature into an engine oil water content model for processing, and outputting a current engine oil water content change rate; Determining a current change in the water content in the engine oil according to the current change rate of the water content in the engine oil and the current running time; The change in the oil water content is summed with the initial oil water content to obtain the current oil water content, wherein the initial oil water content is the oil water content determined in the previous cycle, and the current oil water content is used as the initial oil water content in the next cycle; In response to the current engine oil water content being greater than a first water content threshold, an engine oil maintenance strategy is initiated to reduce the current engine oil water content, and the engine oil maintenance strategy is exited after a strategy exit condition is met.

4. The method according to claim 3, characterized in that The inputting the current operating condition and the current engine oil temperature into the engine oil water content model for processing, and outputting the current engine oil water content change rate, comprises: Inputting the current operating condition and the current engine oil temperature into an engine oil water content model, and determining a target data graph corresponding to the current engine oil temperature from a water content growth data graph and a water content evaporation data graph of the engine oil water content model; In the oil water content model, according to the target data graph, the current oil water content change rate corresponding to the current operating condition and the current oil temperature is determined and output.

5. The method according to claim 3, characterized in that: In response to the current engine oil water content being greater than a first water content threshold, starting an engine oil maintenance strategy to reduce the current engine oil water content, and exiting the engine oil maintenance strategy after a strategy exit condition is met, including: In response to the current oil water content being greater than or equal to a first oil content threshold, the vehicle speed being greater than or equal to the first vehicle speed threshold, and the oil temperature being greater than or equal to a first temperature threshold, starting an oil maintenance strategy for continuous engine operation to keep the oil temperature greater than or equal to the first temperature threshold, and performing oil water evaporation to reduce the current oil water content; In response to at least one of the current engine oil water content being less than or equal to a second water content threshold, the vehicle speed being less than or equal to a second vehicle speed threshold, and the engine oil temperature being less than or equal to a second temperature threshold, controlling the engine to exit the engine oil maintenance strategy; Among them, the second water content threshold is smaller than the first water content threshold, the second vehicle speed threshold is smaller than the first vehicle speed threshold, and the second temperature threshold is smaller than the first temperature threshold.

6. The method according to claim 5, characterized in that A heater is provided in the engine; The starting of the engine oil maintenance strategy to reduce the current engine oil water content and exiting the engine oil maintenance strategy after the strategy exit condition is met includes: After the oil maintenance strategy is started for a predetermined period of time, the current operating condition of the engine and the current oil temperature are input into the oil water content model for processing to obtain a new current oil water content change rate; Determine whether the new current oil water content change rate is less than or equal to a change rate threshold, and obtain a determination result; In response to the judgment result being yes, the engine oil maintenance strategy is kept running, and the engine oil maintenance strategy is exited after a strategy exit condition is met; or, In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and after the current engine oil water content determined according to the new current engine oil water content change rate is less than or equal to the second water content threshold, the engine oil maintenance strategy is exited and the heater heating is stopped; or, In response to the judgment result being negative, the heater is controlled to start heating the engine oil, and when the current engine oil water content determined according to the new current engine oil water content change rate is greater than the second water content threshold, and any one of the vehicle speed being less than or equal to the second vehicle speed threshold and the engine oil temperature being less than or equal to the second temperature threshold is satisfied, the engine oil maintenance strategy is exited.

7. The method according to any one of claims 3 to 6, characterized in that: Also includes: During the process of starting the oil maintenance strategy, the startup time of the oil maintenance strategy is counted; In response to the startup duration being greater than a duration threshold, it is determined that a fault exists in the vehicle engine, the engine oil maintenance strategy is exited, and a fault prompt is given.

8. A processing device for a motor oil water content model, characterized in that: include: The water content growth collection module is configured to determine the oil water content growth data during the operation of the engine under various operating conditions of a first constant oil temperature, wherein the first constant oil temperature includes: at least one oil temperature value less than an oil temperature threshold; a water content evaporation collection module configured to determine the oil water content evaporation data during the operation of the engine under various operating conditions of a second constant oil temperature, wherein the second constant oil temperature includes: at least one oil temperature value greater than or equal to an oil temperature threshold; The model building module is configured to build an engine oil water content model capable of determining the rate of change of the engine oil water content according to the engine oil water content growth data and the engine oil water content evaporation data.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that: When the processor executes the program, the method according to any one of claims 1 to 7 is implemented.

10. A vehicle, characterized in that: Includes the device according to claim 8 or the electronic device according to claim 9.

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