Method and device for removing water from engine oil for hybrid vehicle and electronic device

Abstract

The application provides a method and device for removing water from engine oil of a hybrid vehicle and an electronic device. The method comprises: monitoring a change value of water content in engine oil in a current unit period; if the change value is greater than 0, correcting the water content in engine oil at the starting moment of the current unit period based on the change value and a water vapor condensation coefficient under the current working condition of the engine to obtain the water content in engine oil at the ending moment of the current unit period; if the change value is less than 0, correcting the water content in engine oil at the starting moment of the current unit period based on the change value and a water vapor evaporation coefficient under the current working condition of the engine to obtain the water content in engine oil at the ending moment of the current unit period; detecting whether the water content in engine oil is over standard based on the water content in engine oil at the ending moment of the current unit period; and increasing the engine speed to remove water from engine oil if the water content in engine oil is over standard. The application can more accurately remove water from engine oil.

Description

Technical Field

[0001] This application relates to the field of new energy, specifically to a method, apparatus, and electronic equipment for removing water from engine oil in hybrid vehicles. Background Technology

[0002] Hybrid vehicles, especially in low-temperature environments or on roads requiring low-speed driving, often experience frequent short-term engine starts and stops before the engine oil temperature has fully risen. This operating condition causes combustion exhaust gases from the cylinders to enter the crankcase, where they condense and increase the water content in the engine oil. This can lead to oil emulsification, oil deterioration, and reduced lubrication. Therefore, removing water from the engine oil in hybrid vehicles is crucial. However, current technologies often fail to accurately calculate the water content of the oil, resulting in imprecise water removal processes. Summary of the Invention

[0003] One objective of this application is to provide a method, apparatus, and electronic device for removing water from engine oil in hybrid vehicles, which can more accurately remove water from engine oil by more precisely calculating the water content of the engine oil.

[0004] According to one aspect of the embodiments of this application, a method for removing water from engine oil in a hybrid vehicle is disclosed, the method comprising:

[0005] Monitor the change in engine oil water content within the current unit of time.

[0006] If the change value is greater than 0, then based on the change value and the water vapor condensation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period.

[0007] If the change value is less than 0, then based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period.

[0008] Based on the oil water content at the end of the current unit time period, detect whether the oil water content exceeds the standard;

[0009] If the engine oil contains too much water, increase the engine speed to remove the water from the oil.

[0010] According to one aspect of the embodiments of this application, an oil-water removal device for a hybrid vehicle is disclosed, the device comprising:

[0011] The change value monitoring module is configured to monitor the change value of engine oil water content within the current unit time period;

[0012] The first correction module is configured to, if the change value is greater than 0, correct the oil water content at the beginning of the current unit time period based on the change value and the water vapor condensation coefficient under the current engine operating conditions, so as to obtain the oil water content at the end of the current unit time period.

[0013] The second correction module is configured to, if the change value is less than 0, correct the oil water content at the beginning of the current unit time period based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, so as to obtain the oil water content at the end of the current unit time period.

[0014] The excessive water content detection module is configured to detect whether the water content of the engine oil exceeds the standard based on the oil water content at the end of the current unit time period;

[0015] The water removal module is configured to increase the engine speed to remove water from the engine oil if the water content in the engine oil exceeds the standard.

[0016] In one exemplary embodiment of this application, the device is configured as follows:

[0017] Get the engine speed and engine coolant temperature within the current time period;

[0018] If the change value is greater than 0, the engine speed and engine water temperature are used to look up the pre-calibrated condensation coefficient table to obtain the water vapor condensation coefficient.

[0019] If the change value is less than 0, the engine speed and engine water temperature are used to look up the pre-calibrated evaporation coefficient table to obtain the water vapor evaporation coefficient.

[0020] In an exemplary embodiment of this application, the excess detection module is configured as follows:

[0021] If the oil water content at the end of the current unit time period is greater than the first threshold, then it is confirmed that the oil water content exceeds the standard.

[0022] If the oil water content at the end of the current unit time period is less than or equal to the first threshold, then it is confirmed that the oil water content has not exceeded the standard.

[0023] In one exemplary embodiment of this application, the device is configured as follows:

[0024] If the oil water content at the end of the current unit time period is less than or equal to the first threshold and greater than the second threshold, then in hybrid mode, the engine speed is increased and an engine priority strategy is adopted to drive the vehicle; wherein, the second threshold is less than the first threshold.

[0025] In one exemplary embodiment of this application, the device is configured as follows:

[0026] If the oil water content at the end of the current unit time period is less than or equal to the third threshold, the engine is controlled to continue running in the original mode; wherein the third threshold is less than the second threshold.

[0027] In an exemplary embodiment of this application, if the water content of the engine oil exceeds the standard, the device is configured as follows:

[0028] A prompt message is generated to remind the user to keep the engine running, and the generation of the prompt message stops after the oil water content at the end of the corresponding unit time period is detected to be less than or equal to the third threshold.

[0029] In one exemplary embodiment of this application, the device is configured as follows:

[0030] The prompt information is displayed on the vehicle's instrument panel.

[0031] According to one aspect of the embodiments of this application, an electronic device is disclosed, including: one or more processors; and a storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to implement the methods provided in the various optional implementations described above.

[0032] According to one aspect of the embodiments of this application, a computer program medium is disclosed, on which computer-readable instructions are stored, which, when executed by a computer's processor, cause the computer to perform the methods provided in the various optional implementations described above.

[0033] According to one aspect of the embodiments of this application, a computer program product or computer program is provided, which includes computer instructions stored in a computer-readable storage medium. A processor of a computer device reads the computer instructions from the computer-readable storage medium and executes the computer instructions, causing the computer device to perform the methods provided in the various optional implementations described above.

[0034] In this embodiment, the change in engine oil water content within the current unit time period is monitored. If the change is greater than 0, the engine oil water content at the beginning of the current unit time period is corrected based on the change and the water vapor condensation coefficient under the current engine operating conditions to obtain the engine oil water content at the end of the current unit time period. If the change is less than 0, the engine oil water content at the beginning of the current unit time period is corrected based on the change and the water vapor evaporation coefficient under the current engine operating conditions to obtain the engine oil water content at the end of the current unit time period. Based on the engine oil water content at the end of the current unit time period, it is detected whether the engine oil water content exceeds the standard. If the engine oil water content exceeds the standard, the engine speed is increased to remove water from the engine oil. In this way, the calculated engine oil water content at the end of the current unit time period can more comprehensively reflect the overall water content of the environment in which the engine oil is located, thereby improving the accuracy of the calculated engine oil water content and enabling more precise removal of water from the engine oil.

[0035] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0036] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0037] The above and other objectives, features and advantages of this application will become more apparent from a detailed description of exemplary embodiments thereof with reference to the accompanying drawings.

[0038] Figure 1 A flowchart of a method for removing water from engine oil in a hybrid vehicle according to an embodiment of this application is shown.

[0039] Figure 2 A detailed flowchart of a method for removing water from engine oil in a hybrid vehicle according to an embodiment of this application is shown.

[0040] Figure 3 A block diagram of an oil-water removal device for a hybrid vehicle according to an embodiment of this application is shown.

[0041] Figure 4 A hardware diagram of an electronic device according to an embodiment of this application is shown. Detailed Implementation

[0042] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, they are provided to make the description of this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The drawings are merely illustrative of this application and are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0043] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more exemplary embodiments. Numerous specific details are provided in the following description to give a full understanding of exemplary embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced with one or more specific details omitted, or other methods, components, steps, etc., can be employed. In other instances, well-known structures, methods, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0044] Some of the block diagrams shown in the accompanying drawings are functional entities and do not necessarily correspond to physically or logically independent entities. These functional entities can be implemented in software, in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0045] This application provides a method for removing water from engine oil in hybrid vehicles. By more accurately calculating the water content of the engine oil, the method can more precisely remove water from the oil. The hybrid vehicles to which this application applies include HEVs (Hybrid Electric Vehicles) and PHEVs (Plug-in Hybrid Electric Vehicles).

[0046] Figure 1 A flowchart of the oil dehydration method for hybrid vehicles provided in this application is shown.

[0047] See Figure 1 The methods provided in this application include:

[0048] Step S110: Monitor the change in engine oil water content within the current unit time period;

[0049] Step S120: If the change value is greater than 0, then based on the change value and the water vapor condensation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period.

[0050] Step S130: If the change value is less than 0, then based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period.

[0051] Step S140: Based on the oil water content at the end of the current unit time period, detect whether the oil water content exceeds the standard;

[0052] Step S150: If the water content of the engine oil exceeds the standard, increase the engine speed to remove water from the engine oil.

[0053] In this embodiment, the vehicle's operating time is divided into time segments of uniform duration according to a preset time step. For example, if the preset time step is 2 minutes, the vehicle's operating time is divided into time segments of uniform duration of 2 minutes.

[0054] For the current time period, monitor the change in engine oil water content within that time period. Engine oil water content typically describes the percentage of water molecules dissolved in the engine oil.

[0055] Specifically, a physical modeling approach can be used to establish a calculation model for engine oil water content. This model can then be used to monitor the change in engine oil water content over the current time period. Alternatively, an engine oil water content sensor can be installed to monitor the change in engine oil water content over the current time period.

[0056] After obtaining the change in oil water content within the current unit time period, this embodiment of the application does not directly add this change value to the oil water content at the start time of the current unit time period (i.e., the end time of the previous unit time period) and then determine the result of the addition as the oil water content at the end time of the current unit time period. The reason is that although oil water content describes the proportion of water molecules dissolved in the oil, considering the overall environment of the crankcase where the oil is located, the oil water content is actually also affected by water molecules in the air inside the crankcase.

[0057] Therefore, in order to make the calculated oil water content more comprehensively reflect the overall water content of the crankcase, after obtaining the change value of oil water content within the current unit time period, this application embodiment confirms whether the change value is greater than 0.

[0058] If the change value is greater than 0, it indicates that the oil water content is increasing within the current unit time period, which also means that the water molecules in the crankcase are generally tending towards a condensation state. Therefore, in this case, the water vapor condensation coefficient under the current engine operating conditions is obtained. Then, by combining the change value with the water vapor condensation coefficient, the oil water content at the beginning of the current unit time period is corrected. This allows the oil water content at the end of the current unit time period to more comprehensively reflect the overall water content of the crankcase, which is generally tending towards a condensation state.

[0059] If the change value is less than 0, it indicates that the oil water content is decreasing within the current unit time period, which also means that the water molecules in the crankcase are generally tending towards evaporation. Therefore, in this case, the water vapor evaporation coefficient under the current engine operating conditions is obtained, and then the change value and the water vapor evaporation coefficient are combined to correct the oil water content at the beginning of the current unit time period. This allows the oil water content at the end of the current unit time period to more comprehensively reflect the overall water content of the crankcase, which is generally tending towards evaporation.

[0060] Once the oil water content is obtained at the end of the current time period, it can be compared with a preset threshold to determine whether the oil water content exceeds the standard.

[0061] If the engine oil contains too much water, increase the engine speed to accelerate the evaporation of dissolved water molecules in the oil, thus removing water from the oil.

[0062] In one embodiment, the method provided in this application further includes:

[0063] Get the engine speed and engine coolant temperature within the current time period;

[0064] If the change value is greater than 0, the engine speed and engine water temperature are used to look up the pre-calibrated condensation coefficient table to obtain the water vapor condensation coefficient.

[0065] If the change value is less than 0, the engine speed and engine water temperature are used to look up the pre-calibrated evaporation coefficient table to obtain the water vapor evaporation coefficient.

[0066] In this embodiment, the current engine operating condition associated with the water vapor condensation coefficient / water vapor evaporation coefficient refers to the engine speed and engine coolant temperature.

[0067] Specifically, considering that the overall condensation rate / evaporation rate of moisture in the crankcase environment mainly depends on engine speed and engine coolant temperature, the engine speed can be pre-divided into multiple speed ranges, and the engine coolant temperature into multiple temperature ranges. Then, the condensation rate of moisture in the overall crankcase environment under each speed range and temperature range is measured and calibrated to obtain a condensation coefficient table; similarly, the evaporation rate of moisture in the overall crankcase environment under each speed range and temperature range is measured and calibrated to obtain an evaporation coefficient table.

[0068] Next, determine the engine speed and engine coolant temperature within the current time period. If the change in oil water content within the current time period is greater than 0, then the engine speed and engine coolant temperature are used to look up the condensation coefficient table to obtain the water vapor condensation coefficient under the current engine operating conditions. If the change in oil water content within the current time period is less than 0, then the engine speed and engine coolant temperature are used to look up the condensation coefficient table to obtain the water vapor condensation coefficient under the current engine operating conditions.

[0069] In one embodiment, detecting whether the oil water content exceeds the standard based on the oil water content at the end of the current unit time period includes:

[0070] If the oil water content at the end of the current time period is greater than the first threshold, then the oil water content is confirmed to be excessive.

[0071] If the oil water content at the end of the current time period is less than or equal to the first threshold, then the oil water content is confirmed to be within the standard.

[0072] In this embodiment, a first threshold W1 is pre-defined to determine whether the water content of the engine oil exceeds the standard. After obtaining the water content of the engine oil at the end of the current unit time period, it is compared with the first threshold W1. If it is greater than the first threshold W1, the water content of the engine oil is confirmed to exceed the standard. Conversely, if it is less than or equal to the first threshold W1, the water content of the engine oil is confirmed to be within the standard.

[0073] It should be noted that when using thresholds for classification, the attribution of the boundary case "equal to the threshold" is adaptively selectable. Specifically, in another embodiment, if the oil water content at the end of the current unit time period is greater than or equal to the first threshold W1, then the oil water content is confirmed to be excessive; if the oil water content at the end of the current unit time period is less than the first threshold W1, then the oil water content is confirmed to be within the acceptable range.

[0074] In one embodiment, the method provided in this application further includes:

[0075] If the oil water content at the end of the current time period is less than or equal to the first threshold and greater than the second threshold, then in hybrid mode, the engine speed is increased and an engine priority strategy is adopted to drive the vehicle; wherein, the second threshold is less than the first threshold.

[0076] In this embodiment, in addition to a first threshold W1 for determining whether the water content of the engine oil exceeds the standard, a second threshold W2 is also provided. The second threshold W2 is less than the first threshold W1.

[0077] Specifically, regarding the oil water content at the end of the current time period, after detecting that it is less than or equal to the first threshold W1, it is further checked whether it is greater than the second threshold W2. If it is still greater than the second threshold W2, it means that although the oil water content has not yet exceeded the standard, it is already close to exceeding the standard. Therefore, although water removal treatment is needed, forced water removal is not required.

[0078] Therefore, in this situation, the engine's operating mode is monitored. There are typically three engine operating modes: pure fuel-powered mode where the engine provides the driving force alone; hybrid mode where the engine and battery jointly provide the driving force; and pure electric mode where the battery provides the driving force alone.

[0079] If the engine is in pure fuel-powered mode, it will typically maintain a relatively high RPM. In this state, there is no need to significantly increase the engine speed to remove water from the engine oil to a certain extent. Therefore, no additional control is required when the engine is in pure fuel-powered mode.

[0080] If the engine is in pure electric drive mode, it will not turn. In this mode, starting the engine will result in significant noise, negatively impacting the user experience. Since water removal is not mandatory in this situation, the engine does not need to be turned on and no additional control is required.

[0081] When the engine is in hybrid mode, the engine speed is usually lower. In this state, to enhance the removal of water from the engine oil, the engine speed is increased, and an engine-priority strategy is used to drive the vehicle. When the engine-priority strategy is used, the driving force is mainly provided by the engine. Since the engine is already running in hybrid mode, even with increased speed, noise levels are not particularly noticeable. Therefore, this method enhances the removal of water from the engine oil without significantly increasing additional noise.

[0082] In one embodiment, the method provided in this application further includes:

[0083] If the oil water content at the end of the current time period is less than or equal to the third threshold, the engine will continue to run in the original mode; where the third threshold is less than the second threshold.

[0084] In this embodiment, in addition to the pre-defined first threshold W1 and second threshold W2, a third threshold W3 is also pre-defined. The third threshold W3 is less than the second threshold W2.

[0085] It should be noted that, under normal circumstances, the water content of engine oil is between the second threshold W2 and the third threshold W3. If the water content of engine oil at the end of the current time period is not only less than the second threshold W2 but also less than the third threshold W3, it indicates that the water content of the engine oil is in an ideal state. Therefore, in this case, the engine can continue to operate in its original mode without any additional control.

[0086] In one embodiment, if the water content of the engine oil exceeds the standard, the method provided in this application further includes:

[0087] The system generates a prompt message to remind the user to keep the engine running, and stops generating the prompt message after detecting that the oil water content at the end of the corresponding time period is less than or equal to the third threshold.

[0088] In this embodiment, considering that the water removal effect of a short time is not ideal when the water content of the engine oil exceeds the standard, it is necessary to ensure the continuous operation of the engine to avoid interruption due to engine shutdown in order to guarantee the water removal effect. Therefore, if the water content of the engine oil exceeds the standard, a prompt message is generated to remind the user to keep the engine running to continuously remove water from the engine oil; the prompt message is stopped only after the water removal process is carried out and the oil water content at the end of the corresponding unit time period is detected to be less than or equal to the third threshold W3.

[0089] The generated prompts can be text, icons, or voice messages.

[0090] In one embodiment, generating a prompt message includes:

[0091] The vehicle's instrument panel displays a prompt message.

[0092] In this embodiment, the generated prompt information is displayed on the vehicle's instrument panel (for example, illuminating an icon on the instrument panel indicating excessive water content in the engine oil), so that users can receive the prompt information in a timely and convenient manner during vehicle use.

[0093] Figure 2 A detailed flowchart of an oil dehydration method for a hybrid vehicle according to an embodiment of this application is shown.

[0094] See Figure 2In one embodiment, an engine water content calculation model is used to monitor the change in engine oil water content within each unit time period.

[0095] Obtain the change value dwt of the oil water content within the current unit time period, and confirm whether the change value dwt is greater than 0.

[0096] If dwt is greater than 0, it indicates that the water molecules in the crankcase are generally in a condensed state. Therefore, the oil water content W at the end of the current unit time period is calculated using the formula W = W0 + dwt * k1. Here, W0 represents the oil water content at the beginning of the current unit time period; k1 is the water vapor condensation coefficient under the current engine operating conditions.

[0097] If dwt is less than 0 (in this embodiment, the case where dwt equals 0 is classified as the same case as dwt less than 0), it indicates that the water molecules in the crankcase are generally in an evaporating state. Therefore, the oil water content W at the end of the current unit time period is calculated using the formula W = W0 + dwt * k2. Here, k2 is the water vapor condensation coefficient under the current engine operating conditions.

[0098] Then the calculated oil water content W is compared with the first threshold W1.

[0099] If the calculated oil water content W is greater than the first threshold W1, it indicates that the oil water content exceeds the standard. In this case, the engine speed is increased to accelerate the evaporation of dissolved water molecules in the oil, thereby achieving the effect of removing water from the oil. Furthermore, a prompt message is generated to remind the user to keep the engine running to continuously remove water from the oil. The prompt message is only generated after the oil water content W at the end of the corresponding time period is detected to be less than or equal to the third threshold W3, as the water removal process continues.

[0100] If the calculated oil water content W is less than or equal to the first threshold W1, it means that the oil water content is within the standard, and it is further compared with the second threshold W2.

[0101] If the calculated oil water content W is less than or equal to the first threshold W1 and greater than the second threshold W2, no prompt message needs to be generated, and the engine speed will be increased and the vehicle will be driven using an engine priority strategy only in hybrid mode.

[0102] If the calculated oil water content W is less than the second threshold W2 and greater than the third threshold W3, it indicates that the oil water content is in a normal state, and the engine can be controlled to continue running in the original mode.

[0103] If the calculated oil water content W is less than or equal to the third threshold W3, it indicates that the oil water content is in an ideal state, and the engine will continue to operate in the original mode.

[0104] Among them, the first threshold W1 is greater than the second threshold W2, and the second threshold W2 is greater than the third threshold W3.

[0105] Figure 3 A block diagram of an oil-water removal device for a hybrid vehicle according to an embodiment of this application is shown. The device includes:

[0106] The change value monitoring module 210 is configured to monitor the change value of engine oil water content within the current unit time period;

[0107] The first correction module 220 is configured to, if the change value is greater than 0, correct the oil water content at the beginning of the current unit time period based on the change value and the water vapor condensation coefficient under the current engine operating conditions, so as to obtain the oil water content at the end of the current unit time period.

[0108] The second correction module 230 is configured to, if the change value is less than 0, correct the oil water content at the beginning of the current unit time period based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, so as to obtain the oil water content at the end of the current unit time period.

[0109] The excessive water content detection module 240 is configured to detect whether the water content of the engine oil exceeds the standard based on the oil water content at the end of the current unit time period;

[0110] The water removal module 250 is configured to increase the engine speed to remove water from the engine oil if the water content in the engine oil exceeds the standard.

[0111] In one exemplary embodiment of this application, the device is configured as follows:

[0112] Get the engine speed and engine coolant temperature within the current time period;

[0113] If the change value is greater than 0, the engine speed and engine water temperature are used to look up the pre-calibrated condensation coefficient table to obtain the water vapor condensation coefficient.

[0114] If the change value is less than 0, the engine speed and engine water temperature are used to look up the pre-calibrated evaporation coefficient table to obtain the water vapor evaporation coefficient.

[0115] In one exemplary embodiment of this application, the excessive detection module 240 is configured as follows:

[0116] If the oil water content at the end of the current time period is greater than the first threshold, then the oil water content is confirmed to be excessive.

[0117] If the oil water content at the end of the current time period is less than or equal to the first threshold, then the oil water content is confirmed to be within the standard.

[0118] In one exemplary embodiment of this application, the device is configured as follows:

[0119] If the oil water content at the end of the current time period is less than or equal to the first threshold and greater than the second threshold, then in hybrid mode, the engine speed is increased and an engine priority strategy is adopted to drive the vehicle; wherein, the second threshold is less than the first threshold.

[0120] In one exemplary embodiment of this application, the device is configured as follows:

[0121] If the oil water content at the end of the current time period is less than or equal to the third threshold, the engine will continue to run in the original mode; where the third threshold is less than the second threshold.

[0122] In an exemplary embodiment of this application, if the water content of the engine oil exceeds the standard, the device is configured as follows:

[0123] The system generates a prompt message to remind the user to keep the engine running, and stops generating the prompt message after detecting that the oil water content at the end of the corresponding time period is less than or equal to the third threshold.

[0124] In one exemplary embodiment of this application, the device is configured as follows:

[0125] The vehicle's instrument panel displays a prompt message.

[0126] The following is for reference. Figure 4 To describe the electronic device 30 according to an embodiment of this application. Figure 4 The electronic device 30 shown is merely an example and should not impose any limitations on the functionality and scope of use of the embodiments of this application.

[0127] like Figure 4 As shown, the electronic device 30 is presented in the form of a general-purpose computing device. The components of the electronic device 30 may include, but are not limited to: at least one processing unit 310, at least one storage unit 320, and a bus 330 connecting different system components (including storage unit 320 and processing unit 310).

[0128] The storage unit stores program code that can be executed by the processing unit 310, causing the processing unit 310 to perform the steps described in the exemplary method description section of this specification according to various exemplary embodiments of the present invention. For example, the processing unit 310 can perform actions such as... Figure 1 The steps shown are as follows.

[0129] Storage unit 320 may include readable media in the form of volatile storage units, such as random access memory (RAM) 3201 and / or cache memory 3202, and may further include read-only memory (ROM) 3203.

[0130] Storage unit 320 may also include a program / utility 3204 having a set (at least one) program module 3205, such program module 3205 including but not limited to: operating system, one or more application programs, other program modules and program data, each or some combination of these examples may include an implementation of a network environment.

[0131] Bus 330 can represent one or more of several types of bus structures, including a memory cell bus or memory cell controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local bus using any of the various bus structures.

[0132] Electronic device 30 can also communicate with one or more external devices 400 (e.g., keyboard, pointing device, Bluetooth device, etc.), and with one or more devices that enable a user to interact with electronic device 30, and / or with any device that enables electronic device 30 to communicate with one or more other computing devices (e.g., router, modem, etc.). This communication can be performed via input / output (I / O) interface 350. Input / output (I / O) interface 350 is connected to display unit 340. Furthermore, electronic device 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 360. As shown, network adapter 360 communicates with other modules of electronic device 30 via bus 330. It should be understood that, although not shown in the figures, other hardware and / or software modules can be used in conjunction with electronic device 30, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives, and data backup storage systems.

[0133] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, terminal device, or network device, etc.) to execute the method according to the embodiments of this application.

[0134] In an exemplary embodiment of this application, a computer-readable storage medium is also provided, on which computer-readable instructions are stored, which, when executed by a computer's processor, cause the computer to perform the methods described in the above method embodiments.

[0135] According to one embodiment of this application, a program product for implementing the methods in the above-described method embodiments is also provided. This product may employ a portable compact disc read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of this invention is not limited thereto. In this document, a readable storage medium may be any tangible medium containing or storing a program that may be used by or in conjunction with an instruction execution system, apparatus, or device.

[0136] The program product may employ any combination of one or more readable media. A readable medium may be a readable signal medium or a readable storage medium. A readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or any combination thereof. More specific examples of readable storage media (a non-exhaustive list) include: an electrical connection having one or more wires, a portable disk, a hard disk, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fiber, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination thereof.

[0137] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, carrying readable program code. Such propagated data signals may take various forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination thereof. A readable signal medium may also be any readable medium other than a readable storage medium, capable of sending, propagating, or transmitting programs for use by or in conjunction with an instruction execution system, apparatus, or device.

[0138] The program code contained on the readable medium may be transmitted using any suitable medium, including but not limited to wireless, wired, optical fiber, RF, etc., or any suitable combination thereof.

[0139] Program code for performing the operations of this invention can be written in any combination of one or more programming languages, including object-oriented programming languages ​​such as JAVA and C++, and conventional procedural programming languages ​​such as C or similar languages. The program code can execute entirely on the user's computing device, partially on the user's computing device, as a standalone software package, partially on the user's computing device and partially on a remote computing device, or entirely on a remote computing device or server. In cases involving remote computing devices, the remote computing device can be connected to the user's computing device via any type of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (e.g., via the Internet using an Internet service provider).

[0140] It should be noted that although several modules or units for the device used to perform actions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the embodiments of this application, the features and functions of two or more modules or units described above can be embodied in one module or unit. Conversely, the features and functions of one module or unit described above can be further divided and embodied by multiple modules or units.

[0141] Furthermore, although the steps of the method in this application are described in a specific order in the accompanying drawings, this does not require or imply that the steps must be performed in that specific order, or that all the steps shown must be performed to achieve the desired result. Additional or alternative steps may be omitted, multiple steps may be combined into one step, and / or a step may be broken down into multiple steps.

[0142] Through the above description of the embodiments, those skilled in the art will readily understand that the exemplary embodiments described herein can be implemented by software or by combining software with necessary hardware. Therefore, the technical solutions according to the embodiments of this application can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (such as a CD-ROM, USB flash drive, external hard drive, etc.) or on a network, including several instructions to cause a computing device (such as a personal computer, server, mobile terminal, or network device, etc.) to execute the method according to the embodiments of this application.

[0143] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the appended claims.

Claims

1. A method for removing water from engine oil in hybrid vehicles, characterized in that, The method includes: Monitor the change in engine oil water content within the current unit of time. Get the engine speed and engine coolant temperature within the current time period; If the change value is greater than 0, the engine speed and engine water temperature are used to look up the pre-calibrated condensation coefficient table to obtain the water vapor condensation coefficient; based on the change value and the water vapor condensation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period. If the change value is less than 0, the engine speed and engine water temperature are used to look up the pre-calibrated evaporation coefficient table to obtain the water vapor evaporation coefficient; based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, the oil water content at the beginning of the current unit time period is corrected to obtain the oil water content at the end of the current unit time period. Based on the oil water content at the end of the current unit time period, detect whether the oil water content exceeds the standard; If the engine oil contains too much water, increase the engine speed to remove the water from the oil.

2. The method according to claim 1, characterized in that, Based on the oil water content at the end of the current unit time period, the detection of whether the oil water content exceeds the standard includes: If the oil water content at the end of the current unit time period is greater than the first threshold, then it is confirmed that the oil water content exceeds the standard. If the oil water content at the end of the current unit time period is less than or equal to the first threshold, then it is confirmed that the oil water content has not exceeded the standard.

3. The method according to claim 2, characterized in that, The method further includes: If the oil water content at the end of the current unit time period is less than or equal to the first threshold and greater than the second threshold, then in hybrid mode, the engine speed is increased and an engine priority strategy is adopted to drive the vehicle; wherein, the second threshold is less than the first threshold.

4. The method according to claim 3, characterized in that, The method further includes: If the oil water content at the end of the current unit time period is less than or equal to the third threshold, the engine is controlled to continue running in the original mode; wherein the third threshold is less than the second threshold.

5. The method according to claim 4, characterized in that, If the water content of the engine oil exceeds the standard, the method further includes: A prompt message is generated to remind the user to keep the engine running, and the generation of the prompt message stops after the oil water content at the end of the corresponding unit time period is detected to be less than or equal to the third threshold.

6. The method according to claim 5, characterized in that, Generate prompt messages, including: The prompt information is displayed on the vehicle's instrument panel.

7. An oil-water removal device for hybrid vehicles, characterized in that, The device includes: The change value monitoring module is configured to monitor the change value of engine oil water content within the current unit time period; and to obtain the engine speed and engine coolant temperature within the current unit time period. The first correction module is configured to, if the change value is greater than 0, use the engine speed and the engine water temperature to query a pre-calibrated condensation coefficient table to obtain the water vapor condensation coefficient; based on the change value and the water vapor condensation coefficient under the current engine operating conditions, correct the oil water content at the beginning of the current unit time period to obtain the oil water content at the end of the current unit time period. The second correction module is configured to, if the change value is less than 0, use the engine speed and the engine water temperature to query a pre-calibrated evaporation coefficient table to obtain the water vapor evaporation coefficient; and based on the change value and the water vapor evaporation coefficient under the current engine operating conditions, correct the oil water content at the beginning of the current unit time period to obtain the oil water content at the end of the current unit time period. The excessive water content detection module is configured to detect whether the water content of the engine oil exceeds the standard based on the oil water content at the end of the current unit time period; The water removal module is configured to increase the engine speed to remove water from the engine oil if the water content in the engine oil exceeds the standard.

8. An electronic device, characterized in that, include: One or more processors; A storage device for storing one or more programs, which, when executed by the one or more processors, cause the electronic device to perform the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, It stores computer-readable instructions that, when executed by the processor of a computer, cause the computer to perform the method described in any one of claims 1 to 6.

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