Engine oil life estimation method, vehicle, electronic equipment and storage medium

Abstract

The invention provides an engine oil service life estimation method, a vehicle, electronic equipment and a storage medium, and the method comprises the steps: obtaining the current use duration of engine oil to be estimated, and calculating the calendar aging degree of the engine oil based on natural storage according to the use duration; influence parameters used for representing the breakage degree of the engine oil in the vehicle running process are obtained, and the working condition aging degree of the engine oil based on vehicle running is calculated according to the influence parameters; the calendar aging degree and the working condition aging degree are compared, and when the comparison result is that the calendar aging degree is larger than the working condition aging degree, the remaining service life of the engine oil is estimated according to the calendar aging degree; and when the comparison result is that the calendar aging degree is smaller than the working condition aging degree, estimating the remaining service life according to the change degree of the working condition aging degree in a preset period. The service life of the engine oil of the vehicle can be accurately predicted, and on-demand maintenance of the engine oil is achieved.

Description

Technical Field

[0001] The present application relates to the field of engine technology, and in particular to an oil life prediction method, a vehicle, an electronic device and a storage medium. Background Art

[0002] Hybrid power generally refers to oil-electric hybrid power, that is, a mixture of fuel (gasoline, diesel, etc.) and electricity. Hybrid vehicles are powered by an electric motor as an auxiliary power source for the engine. Hybrid vehicles refer to vehicles that use both oil-driven and electric-driven driving methods. The advantage is that when the vehicle starts and stops, it is driven only by the motor. The engine does not work unless it reaches a certain speed. Therefore, the engine can always be kept in the best working state, with good power and low emissions. Hybrid vehicles improve overall efficiency without sacrificing performance. Hybrid vehicles are designed to recover braking energy. In traditional cars, when the driver steps on the brakes, this energy that could have been used to accelerate the car is thrown away as heat. However, hybrid vehicles can recover most of this energy and temporarily store it for use during acceleration. When the driver wants maximum acceleration, the gasoline engine and the electric motor work in parallel to provide starting performance comparable to that of a powerful gasoline engine. In situations where acceleration is not required to be too high, hybrid vehicles can be driven by the motor alone, or by the gasoline engine alone, or by a combination of the two to achieve maximum efficiency.

[0003] Most of the current hybrid models follow the maintenance plan of traditional engines, that is, the oil needs to be replaced every year or 10,000 kilometers. However, hybrid models are pure electric vehicles. For users who have good charging habits, the engine may not work for a long time, and the fuel driving mileage is relatively short. Therefore, the traditional oil maintenance plan is no longer applicable to hybrid models. Summary of the invention

[0004] In view of this, the present application provides an oil life prediction method, a vehicle, an electronic device and a power system, which can accurately predict the service life of the vehicle's oil and realize on-demand maintenance of the oil.

[0005] An embodiment of the present application provides a method for estimating the life of an engine oil, comprising: obtaining the current usage time of the engine oil to be estimated, and calculating the calendar aging degree of the engine oil based on natural storage according to the usage time; obtaining an influencing parameter for characterizing the degree of deterioration of the engine oil during vehicle driving, and calculating the operating condition aging degree of the engine oil based on vehicle driving according to the influencing parameter; comparing the calendar aging degree with the operating condition aging degree, and estimating the remaining service life of the engine oil according to the calendar aging degree when the comparison result is that the calendar aging degree is greater than the operating condition aging degree; and estimating the remaining service life according to the degree of change of the operating condition aging degree within a preset period when the comparison result is that the calendar aging degree is less than the operating condition aging degree.

[0006] Compared with the related art, the embodiments of the present application have at least the following advantages: by obtaining the calendar aging degree of the engine oil based on natural aging and the operating condition aging degree based on usage aging, and comparing the calendar aging degree and the operating condition aging degree, it is easy to know whether the engine oil ages faster based on natural storage or based on operating conditions, and finally, according to the comparison results, different calculation methods are used to estimate the remaining service life of the engine oil, and the natural aging of the engine oil and the specific usage aging degree are combined to predict the life of the engine oil, so that the method can accurately predict the service life of the vehicle's engine oil and realize on-demand maintenance of the engine oil.

[0007] In some possible implementations, estimating the remaining service life based on the degree of change of the operating condition aging degree within a preset period includes: determining the historical operating condition aging degree of the engine oil in the previous preset period; comparing the historical operating condition aging degree with the operating condition aging degree, and when the historical operating condition aging degree is not equal to the operating condition aging degree, calculating the remaining service life based on the difference between the operating condition aging degree and the historical operating condition aging degree; when the historical operating condition aging degree is equal to the operating condition aging degree, calculating the remaining service life based on the operating condition aging degree and the calendar aging degree.

[0008] In some possible implementations, the remaining service life is calculated based on the difference between the operating condition aging degree and the historical operating condition aging degree, including: determining the historical remaining service life of the engine oil calculated in the previous preset cycle; taking the sum of the historical remaining service life and the operating condition aging degree, and subtracting the historical operating condition aging degree from the sum, as the remaining service life.

[0009] In some possible implementations, the calculating the remaining service life based on the operating condition aging and the calendar aging includes: determining the historical calendar aging of the engine oil in the previous preset period; calculating the calendar aging difference between the calendar aging and the historical calendar aging; calculating the weight of the calendar aging difference based on the operating condition aging and the calendar aging; determining the historical remaining service life of the engine oil calculated in the previous preset period; and calculating the remaining service life based on the historical remaining service life, the calendar aging difference, and the weight.

[0010] In some possible implementations, the remaining useful life is calculated based on the historical remaining useful life, the calendar aging difference and the weight, including: adding a value obtained by multiplying the calendar aging difference by the weight to the historical remaining useful life, and using the value obtained by the addition as the remaining useful life.

[0011] In some possible implementations, when the comparison result is that the calendar aging is greater than the operating condition aging, calculating the remaining service life according to the calendar aging includes: when the comparison result is that the calendar aging is greater than the operating condition aging, determining the historical calendar aging of the engine oil in the last preset cycle, and determining the historical remaining service life of the engine oil calculated in the last preset cycle; taking the sum of the historical remaining service life and the calendar aging, minus the historical calendar aging, as the remaining service life. .

[0012] In some possible implementations, the influencing parameters include at least: engine oil oxidation degree, engine oil attenuation degree, engine oil contamination degree, engine oil wear degree and aging attenuation amount.

[0013] The second aspect of the present application discloses a vehicle, comprising: a data acquisition module, a depreciation calculation module, a comparison module and a life calculation module; the data acquisition module is used to obtain the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the engine oil based on natural aging according to the usage time; the depreciation calculation module is used to obtain the influencing parameters used to characterize the depreciation degree of the engine oil during vehicle driving, and is also used to calculate the operating condition aging degree of the engine oil based on usage aging according to the influencing parameters; the comparison module is used to compare the calendar aging degree and the operating condition aging degree; the life calculation module is used to estimate the remaining service life of the engine oil according to the calendar aging degree when the comparison result is that the calendar aging degree is greater than the operating condition aging degree; when the comparison result is that the calendar aging degree is less than the operating condition aging degree, estimate the remaining service life according to the degree of change of the operating condition aging degree within a preset period.

[0014] The third aspect of the present application discloses an electronic device, which includes a processor and a memory, wherein the memory is used to store instructions, and the processor is used to call the instructions in the memory so that the electronic device executes the above-mentioned oil life prediction method.

[0015] The fourth aspect of the present application discloses a storage medium, including computer instructions. When the computer instructions are executed on an electronic device, the electronic device executes the above-mentioned oil life estimation method.

[0016] It can be understood that the vehicle of the second aspect, the electronic device of the third aspect and the storage medium of the fourth aspect provided above all correspond to the method of the first aspect. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a flow chart of a method for estimating engine oil life according to an embodiment of the present application.

[0018] Figure 2 It is a flow chart of a method for estimating engine oil life according to an embodiment of the present application.

[0019] Figure 3 It is a flow chart of a method for estimating engine oil life according to an embodiment of the present application.

[0020] Figure 4 It is a schematic diagram of the structure of a vehicle according to an embodiment of the present application.

[0021] Figure 5 It is a schematic diagram of the hardware structure of an electronic device according to an embodiment of the present application. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the present application is described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that the implementation methods of the present application and the features in the implementation methods can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present application. The described implementations are only part of the implementations of the present application, rather than all the implementations.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0025] It should be further noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0026] In this application, "at least one" means one or more, and "more" means two or more than two. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone, where A and B can be singular or plural. The terms "first", "second", "third", "fourth", etc. (if any) in the specification, claims and drawings of this application are used to distinguish similar objects, rather than to describe a specific order or sequence.

[0027] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0028] Please refer to Figure 1 , is a flow chart of the oil life estimation method provided in an embodiment of the present application. This embodiment is applied to a vehicle and includes the following steps: Step 101: Obtain the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the oil based on natural aging according to the usage time.

[0029] In some embodiments, the ratio of the usage time to the shelf life of the engine oil is calculated, and the ratio is converted into a percentage, and the percentage is subtracted from 100% as the calendar aging degree. For example, in one embodiment, the shelf life of the engine oil is 300 days, and the usage time of the engine oil is 180 days, and the calendar aging degree of the engine oil is 40%.

[0030] Step 102: Obtain influencing parameters for characterizing the degree of deterioration of the engine oil during vehicle driving, and calculate the operating condition aging degree of the oil based on usage aging according to the influencing parameters.

[0031] In some embodiments, the influencing parameters include at least: engine oil oxidation degree, engine oil attenuation degree, engine oil contamination degree, engine oil wear degree and aging attenuation amount.

[0032] In some embodiments, the influencing parameters are obtained based on vehicle parameters, vehicle running time, and environmental parameters. Specifically, environmental parameters such as ambient temperature are obtained through vehicle sensors, and real-time engine parameters are obtained, including vehicle parameters such as engine speed, engine load, oil temperature, vehicle water temperature, and running time.

[0033] More specifically, the oil oxidation rate, oil attenuation rate, oil contamination rate and oil wear rate are obtained from the vehicle parameters; the oil oxidation degree is obtained based on the oil oxidation rate and running time; the oil attenuation degree is obtained based on the oil attenuation rate and running time; the oil contamination degree is obtained based on the oil contamination rate and running time; and the oil wear degree is obtained based on the oil wear rate and running time.

[0034] In some embodiments, the working condition aging degree is calculated in the following manner: according to the use time of the engine oil, all the influencing parameters from the last time the engine oil was changed to the present are accumulated to obtain the total value of the influencing parameters. The total value of the influencing parameters includes the total value of the engine oil oxidation degree, the total value of the engine oil attenuation degree, the total value of the engine oil pollution degree, the total value of the engine oil wear degree and the total value of the aging attenuation. The total value of the engine oil oxidation degree, the total value of the engine oil attenuation degree, the total value of the engine oil pollution degree, the total value of the engine oil wear degree and the total value of the aging attenuation are respectively weighted to obtain the total value of the influencing parameters, such as the formula: H0 = H1*r1+H2*r2+H3*r3+H4*r4+H5, wherein H0 is the total value of the influencing parameters, H1 is the total value of the engine oil oxidation degree, r1 is the corresponding weight ratio, H2 is the total value of the engine oil attenuation degree, r2 is the corresponding weight ratio, H3 is the total value of the engine oil pollution degree, r3 is the corresponding weight ratio, H4 is the total value of the engine oil wear degree, r4 is the corresponding weight ratio, and H5 is the total value of the aging attenuation. The relationship between the weight ratios is r1+r2+r3+r4=100%, and the range of the weight ratios is 0.1≤r1≤0.15, 0.25≤r1≤0.35, 0.25≤r1≤0.35, 0.1≤r4≤0.15. In one embodiment, r1=0.15, r2=0.35, r3=0.35, r4=0.15. The total value of the influencing parameters is converted into a percentage, and the percentage of the total value of the influencing parameters is subtracted from the percentage as the working condition aging degree.

[0035] Step 103, compare the calendar aging degree and the operating condition aging degree. When the comparison result is that the calendar aging degree is greater than the operating condition aging degree, execute step 104; when the comparison result is that the calendar aging degree is less than the operating condition aging degree, execute step 105.

[0036] Step 104: Estimate the remaining service life of the engine oil according to the calendar aging degree.

[0037] It should be noted that how to estimate the remaining service life of the engine oil based on the calendar aging degree is described in detail in the subsequent embodiments, and will not be described again here to avoid repetition.

[0038] Step 105: Estimate the remaining service life according to the degree of change of the working condition aging degree within a preset period.

[0039] It should be noted that how to estimate the remaining service life of the engine oil according to the operating condition aging degree is described in detail in the subsequent embodiments, and will not be repeated here to avoid repetition.

[0040] Compared with the related art, the embodiments of the present application have at least the following advantages: by obtaining the calendar aging degree of the engine oil based on natural aging and the operating condition aging degree based on usage aging, and comparing the calendar aging degree and the operating condition aging degree, it is easy to know whether the engine oil ages faster based on natural storage or based on operating conditions, and finally, according to the comparison results, different calculation methods are used to estimate the remaining service life of the engine oil, and the natural aging of the engine oil and the specific usage aging degree are combined to predict the life of the engine oil, so that the method can accurately predict the service life of the vehicle's engine oil and realize on-demand maintenance of the engine oil.

[0041] Please refer to Figure 2 , Figure 2 It is a flow chart of a clutch control method provided in one embodiment of the present application. This embodiment is a specific description of the aforementioned embodiment, and further explains: how to estimate the remaining service life of the engine oil according to the aging degree of the operating condition.

[0042] This embodiment is applied to vehicles, and the specific process is as follows Figure 2 As shown, the following steps are included: Step 201: Obtain the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the oil based on natural aging according to the usage time.

[0043] Step 202: Obtain influencing parameters for characterizing the degree of deterioration of the engine oil during vehicle driving, and calculate the operating condition aging degree of the engine oil based on usage aging according to the influencing parameters.

[0044] Step 203, compare the calendar aging degree and the operating condition aging degree. When the comparison result is that the calendar aging degree is greater than the operating condition aging degree, execute step 204; when the comparison result is that the calendar aging degree is less than the operating condition aging degree, execute step 205.

[0045] Step 204: Estimate the remaining service life of the engine oil according to the calendar aging degree.

[0046] Steps 201 to 204 of this embodiment are similar to steps 101 to 104 of the aforementioned embodiment, and are not described again here to avoid repetition.

[0047] Step 205: Determine the historical operating condition aging degree of the engine oil in the last preset cycle.

[0048] In some embodiments, the vehicle obtains the calendar aging degree and the working condition aging degree of the engine oil at every preset period. It is understandable that this embodiment does not specifically limit the size of the preset period, and it can be set according to actual needs.

[0049] Step 206, determine whether the historical operating condition aging degree is equal to the operating condition aging degree. When the historical operating condition aging degree is not equal to the operating condition aging degree, execute step 207; otherwise, execute step 208.

[0050] Step 207: Calculate the remaining service life according to the difference between the working condition aging degree and the historical working condition aging degree.

[0051] In some embodiments, the historical remaining service life of the engine oil calculated in the last preset cycle is determined; and the remaining service life is calculated according to the following formula: ;in, is the remaining useful life, is the historical remaining useful life, is the working condition aging degree, It is the aging degree of historical working conditions.

[0052] It is worth noting that the vehicle will store the historical remaining service life calculated in the previous preset cycle to facilitate the calculation of the remaining service life of the oil in the current cycle.

[0053] Step 208: Calculate the remaining service life according to the operating condition aging degree and the calendar aging degree.

[0054] In some embodiments, the remaining service life is calculated according to the following method: determine the historical calendar aging of the engine oil in the previous preset cycle, calculate the calendar aging and the calendar aging difference between the historical calendar aging; calculate the weight of the calendar aging difference based on the operating condition aging and the calendar aging; determine the historical remaining service life of the engine oil calculated in the previous preset cycle; calculate the remaining service life based on the historical remaining service life, the calendar aging difference and the weight.

[0055] Specifically, the weight of the calendar aging difference is calculated according to the working condition aging and the calendar aging, including: calculating the weight according to the following formula: ;in, is the weight, is the working condition aging degree, is the calendar aging degree, is a constant; the remaining service life is calculated according to the following formula: ;in, is the remaining useful life, is the historical remaining useful life, is the historical calendar aging degree.

[0056] In some embodiments, The value of is greater than 0 and less than 0.3, and can be set according to actual needs. This embodiment does not The value of is specifically limited.

[0057] Steps 201 to 204 of this embodiment are similar to steps 101 to 104 of the aforementioned embodiment, and are not described again here to avoid repetition.

[0058] Compared with the related art, the embodiments of the present application have at least the following advantages: by obtaining the calendar aging degree of the engine oil based on natural aging and the operating condition aging degree based on usage aging, and comparing the calendar aging degree and the operating condition aging degree, it is easy to know whether the engine oil ages faster based on natural storage or based on operating conditions, and finally, according to the comparison results, different calculation methods are used to estimate the remaining service life of the engine oil, and the natural aging of the engine oil and the specific usage aging degree are combined to predict the life of the engine oil, so that the method can accurately predict the service life of the vehicle's engine oil and realize on-demand maintenance of the engine oil.

[0059] Please refer to Figure 3 , Figure 3 It is a flow chart of the oil life estimation method provided in one embodiment of the present application. This embodiment is a specific description of the aforementioned embodiment, and further explains: how to estimate the remaining service life of the oil based on the calendar aging degree.

[0060] This embodiment is applied to vehicles, and the specific process is as follows Figure 3 As shown, the following steps are included: Step 301: Obtain the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the oil based on natural aging according to the usage time.

[0061] Step 302: Obtain influencing parameters for characterizing the degree of deterioration of the engine oil during vehicle driving, and calculate the operating condition aging degree of the engine oil based on usage aging according to the influencing parameters.

[0062] Step 303 , compare the calendar aging degree and the operating condition aging degree. When the comparison result shows that the calendar aging degree is greater than the operating condition aging degree, execute step 304 ; otherwise, execute step 306 .

[0063] Step 304: Determine the historical calendar aging of the engine oil in the last preset period, and determine the historical remaining useful life of the engine oil calculated in the last preset period.

[0064] Step 305: Calculate the remaining service life according to the following formula: ;in, is the remaining useful life, is the historical remaining useful life, is the calendar aging degree, is the historical calendar aging degree.

[0065] Step 306: Estimate the remaining service life according to the degree of change of the working condition aging degree within a preset period.

[0066] Steps 301 to 303 and 306 of this embodiment are similar to steps 101 to 103 and 105 of the aforementioned embodiment, and will not be described again to avoid repetition.

[0067] Compared with the related art, the embodiments of the present application have at least the following advantages: by obtaining the calendar aging degree of the engine oil based on natural aging and the operating condition aging degree based on usage aging, and comparing the calendar aging degree and the operating condition aging degree, it is easy to know whether the engine oil ages faster based on natural storage or based on operating conditions, and finally, according to the comparison results, different calculation methods are used to estimate the remaining service life of the engine oil, and the natural aging of the engine oil and the specific usage aging degree are combined to predict the life of the engine oil, so that the method can accurately predict the service life of the vehicle's engine oil and realize on-demand maintenance of the engine oil.

[0068] Please refer to Figure 4 , is a schematic diagram of the structure of the vehicle 100 provided in the embodiment of the present application. The vehicle 100 includes: a data acquisition module 10, a depreciation calculation module 20, a comparison module 30 and a life calculation module 40; the data acquisition module 10 is used to obtain the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the oil based on natural aging according to the usage time; the depreciation calculation module 20 is used to obtain the influencing parameters used to characterize the depreciation degree of the engine oil during the driving process of the vehicle, and is also used to calculate the operating condition aging degree of the oil based on the usage aging according to the influencing parameters; the comparison module 30 is used to compare the size of the calendar aging degree and the operating condition aging degree; the life calculation module 40 is used to estimate the remaining service life of the engine oil according to the calendar aging degree when the comparison result is that the calendar aging degree is greater than the operating condition aging degree; when the comparison result is that the calendar aging degree is less than the operating condition aging degree, the remaining service life is estimated according to the degree of change of the operating condition aging degree within a preset period.

[0069] Please refer to Figure 5 , is a schematic diagram of the hardware structure of the electronic device 1000 provided in the embodiment of the present application. Figure 5 As shown, the electronic device 1000 may include a processor 1001 and a memory 1002. The memory 1002 is used to store one or more computer programs 1003. The one or more computer programs 1003 are configured to be executed by the processor 1001. The one or more computer programs 1003 include instructions, and the above instructions can be used to implement the above-mentioned oil life estimation method in the electronic device 1000.

[0070] It is understandable that the structure shown in this embodiment does not constitute a specific limitation on the electronic device 1000. In other embodiments, the electronic device 1000 may include more or fewer components than shown, or combine or separate some components, or arrange the components differently.

[0071] The processor 1001 may include one or more processing units, for example, the processor 1001 may include an application processor (AP), a modem, a graphics processing unit (GPU), an image signal processor (ISP), a controller, a video codec, a digital signal processor (DSP), a baseband processor, and / or a neural-network processing unit (NPU), etc. Different processing units may be independent devices or integrated into one or more processors.

[0072] The processor 1001 may also be provided with a memory for storing instructions and data. In some embodiments, the memory in the processor 1001 is a cache memory. The memory may store instructions or data that the processor 1001 has just used or circulated. If the processor 1001 needs to use the instruction or data again, it may be directly called from the memory. This avoids repeated access, reduces the waiting time of the processor 1001, and thus improves the efficiency of the system.

[0073] In some embodiments, the processor 1001 may include one or more interfaces. The interface may include an inter-integrated circuit (I2C) interface, an inter-integrated circuit sound (I2S) interface, a pulse code modulation (PCM) interface, a universal asynchronous receiver / transmitter (UART) interface, a mobile industry processor interface (MIPI), a general-purpose input / output (GPIO) interface, a SIM interface, and / or a USB interface, etc.

[0074] In some embodiments, processor 1001 is used to execute acceleration schemes such as single instruction multiple data (SIMD) and very long instruction word (VLIW).

[0075] In some embodiments, memory 1002 may include high-speed random access memory and may also include non-volatile memory, such as a hard disk, a memory, a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) card, a flash card (Flash Card), at least one disk storage device, a flash memory device, or other volatile solid-state storage devices.

[0076] This embodiment also provides a storage medium, in which computer instructions are stored. When the instructions are executed on an electronic device, the electronic device executes the above-mentioned related method steps to implement the oil life estimation method in the above-mentioned embodiment.

[0077] Among them, the electronic device and storage medium provided in this embodiment are used to execute the corresponding methods provided above. Therefore, the beneficial effects that can be achieved can refer to the beneficial effects in the corresponding methods provided above, and will not be repeated here.

[0078] In practical applications, the above functions can be distributed to different functional modules as needed, that is, the internal structure of the device can be divided into different functional modules to complete all or part of the functions described above.

[0079] In several embodiments provided in the present application, the disclosed devices and methods can be implemented in other ways. For example, the device embodiments described above are schematic. For example, the division of the modules or units is a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another device, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0080] The unit described as a separate component may or may not be physically separated, and the component shown as a unit may be one physical unit or multiple physical units, that is, it may be located in one place or distributed in multiple different places. Some or all of the units may be selected according to actual needs to achieve the purpose of the embodiment.

[0081] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0082] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a readable storage medium. Based on this understanding, the technical solution of the embodiment of the present application is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions to enable a device (which can be a single-chip microcomputer, chip, etc.) or a processor (processor) to execute all or part of the steps of the various embodiments of the present application. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (Read-Only Memory, ROM), random access memory (Random Access Memory, RAM), disk or optical disk and other media that can store program code.

[0083] The above description is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the present application should be included in the protection scope of the present application.

Claims

1. A method for estimating engine oil life, characterized in that: include: Obtaining the current usage time of the engine oil to be estimated, and calculating the calendar aging degree of the engine oil based on natural aging according to the usage time; Acquiring an influencing parameter for characterizing the degree of deterioration of the engine oil during vehicle driving, and calculating the operating condition aging degree of the engine oil based on usage aging according to the influencing parameter; The calendar aging degree and the operating condition aging degree are compared. When the comparison result is that the calendar aging degree is greater than the operating condition aging degree, the remaining service life of the engine oil is estimated based on the calendar aging degree; when the comparison result is that the calendar aging degree is less than the operating condition aging degree, the remaining service life is estimated based on the degree of change of the operating condition aging degree within a preset period.

2. The method for estimating engine oil life according to claim 1, characterized in that: The estimating the remaining service life according to the degree of change of the working condition aging degree within a preset period includes: Determining the historical operating condition aging degree of the engine oil in the previous preset cycle; comparing the historical working condition aging degree with the working condition aging degree, and when the historical working condition aging degree is not equal to the working condition aging degree, calculating the remaining service life according to the difference between the working condition aging degree and the historical working condition aging degree; When the historical operating condition aging degree is equal to the operating condition aging degree, the remaining service life is calculated according to the operating condition aging degree and the calendar aging degree.

3. The method for estimating engine oil life according to claim 2, characterized in that: The calculating the remaining service life according to the difference between the working condition aging degree and the historical working condition aging degree includes: Determining the historical remaining useful life of the engine oil calculated during the last preset period; The value obtained by subtracting the historical operating condition aging degree from the sum of the historical remaining service life and the operating condition aging degree is used as the remaining service life.

4. The method for estimating engine oil life according to claim 2, characterized in that: The calculating the remaining service life according to the operating condition aging degree and the calendar aging degree includes: Determining the historical calendar aging of the engine oil during the last preset period; Calculating a calendar aging difference between the calendar aging and the historical calendar aging; Calculate the weight of the calendar aging degree difference according to the working condition aging degree and the calendar aging degree; Determining the historical remaining useful life of the engine oil calculated during the last preset period; The remaining useful life is calculated according to the historical remaining useful life, the calendar aging difference and the weight.

5. The method for estimating engine oil life according to claim 4, characterized in that: The calculating the remaining useful life according to the historical remaining useful life, the calendar aging difference and the weight includes: The value obtained by multiplying the calendar aging difference by the weight is added to the historical remaining useful life, and the value obtained by adding the two is used as the remaining useful life.

6. The method for estimating engine oil life according to claim 1, characterized in that: When the comparison result is that the calendar aging degree is greater than the operating condition aging degree, estimating the remaining service life of the engine oil according to the calendar aging degree includes: When the comparison result is that the calendar aging degree is greater than the operating condition aging degree, determining the historical calendar aging degree of the engine oil in the previous preset period, and determining the historical remaining service life of the engine oil calculated in the previous preset period; The value obtained by subtracting the historical calendar aging degree from the sum of the historical remaining service life and the calendar aging degree is used as the remaining service life.

7. The method for estimating engine oil life according to any one of claims 1 to 6, characterized in that: The influencing parameters at least include: The degree of oil oxidation, oil attenuation, oil contamination, oil wear and aging attenuation.

8. A vehicle, characterized in that: include: Data acquisition module, depreciation calculation module, comparison module and life calculation module; The data acquisition module is used to acquire the current usage time of the engine oil to be estimated, and calculate the calendar aging degree of the engine oil based on natural aging according to the usage time; The depreciation calculation module is used to obtain the influencing parameters for characterizing the depreciation degree of the engine oil during the driving process of the vehicle, and is also used to calculate the working condition aging degree of the engine oil based on the use aging according to the influencing parameters; The comparison module is used to compare the calendar aging degree and the working condition aging degree; The life calculation module is used to estimate the remaining service life of the engine oil according to the calendar aging when the comparison result is that the calendar aging is greater than the operating condition aging; and to estimate the remaining service life according to the degree of change of the operating condition aging within a preset period when the comparison result is that the calendar aging is less than the operating condition aging.

9. An electronic device, characterized in that: The electronic device includes a processor and a memory, the memory is used to store instructions, and the processor is used to call the instructions in the memory so that the electronic device executes the oil life prediction method according to any one of claims 1 to claim 7.

10. A storage medium, characterized in that: The method comprises computer instructions, and when the computer instructions are executed on an electronic device, the electronic device executes the method for estimating the engine oil life according to any one of claims 1 to 7.

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