Filter maintenance method, device, electronic device and storage medium

Abstract

The present application discloses a filter maintenance method, device, electronic device, and storage medium. The method comprises: obtaining at least one sampled pressure difference of a vehicle's filter element within a preset speed range; determining the consumption pressure difference corresponding to each segmented interval based on the preset segmented intervals and each sampled pressure difference during the vehicle's driving process; determining the remaining life of the filter element based on each consumption pressure difference and the filter element's end pressure difference; obtaining a corresponding relationship curve between the consumption pressure difference and the filter element's consumption mileage; determining the remaining mileage of the filter element based on the corresponding relationship curve, the consumption pressure difference, and the preset end mileage; and maintaining the filter based on at least one of the remaining life and the remaining mileage. The technical solution of the embodiment of the present application improves the accuracy and timeliness of filter maintenance, providing an important guarantee for users to replace filter elements in a timely manner.

Description

Technical Field

[0001] The present application relates to the field of data processing technology, and in particular to a filter maintenance method, device, electronic device and storage medium. Background Art

[0002] With the development of society and advancements in technology, increasing intelligence while maintaining environmental performance is becoming a major future trend. This is particularly true in the automotive industry, where the increasing number of new energy vehicles necessitates further improvements in the use and maintenance of fuel-powered vehicles. Vehicle filters, as essential components of fuel-powered vehicles, require regular maintenance and replacement of filter elements to ensure vehicle performance. Air and fuel filters reduce the impact of impurities on the air and fuel, ensuring complete fuel combustion and enhancing environmental performance. Oil filters, on the other hand, filter impurities in the oil, enhancing its lubrication properties for various vehicle components and ensuring their proper operation.

[0003] For filter maintenance, personnel currently utilize sensors and other technologies to monitor filter lifespans, allowing replacement when filter lifespan reaches a certain limit. However, using sensors to monitor filter lifespans fails to fully understand how filter lifespans change over time, and using filter lifespan alone doesn't fully reflect actual filter usage. Therefore, this method offers limited intelligent filter maintenance, underutilizing filter performance and reducing filter utilization. Summary of the Invention

[0004] The present application provides a filter maintenance method, device, electronic device and storage medium to improve the intelligence of filter maintenance, fully release the performance of the filter element, and improve the utilization rate of the filter element.

[0005] According to one aspect of the present application, a filter maintenance method is provided, the method comprising:

[0006] Obtaining at least one sampled pressure difference of a filter element of a vehicle within a preset speed range;

[0007] According to the preset segment intervals and each sampled pressure difference during the vehicle's driving process, the consumption pressure difference corresponding to each segment interval is determined respectively;

[0008] Determine the remaining life of the filter element based on the consumption pressure difference and the end pressure difference of the filter element;

[0009] Obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element;

[0010] Determine the remaining mileage of the filter element based on the corresponding relationship curve, consumption pressure difference and preset end mileage;

[0011] The filter is maintained based on at least one of the remaining life and the remaining mileage.

[0012] According to another aspect of the present application, a filter maintenance device is provided, comprising:

[0013] A sampling pressure difference acquisition module, used to obtain at least one sampling pressure difference of the vehicle's filter element within a preset speed range;

[0014] The consumption pressure difference determination module is used to determine the consumption pressure difference corresponding to each segment interval according to the preset segment intervals and each sampled pressure difference during the vehicle's driving process;

[0015] The remaining life determination module is used to determine the remaining life of the filter element according to each consumption pressure difference and the end pressure difference of the filter element;

[0016] A relationship curve acquisition module is used to obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element;

[0017] The remaining mileage determination module is used to determine the remaining mileage of the filter element according to the corresponding relationship curve, the consumption pressure difference and the preset end mileage;

[0018] The filter maintenance module is used to maintain the filter according to at least one of the remaining life and the remaining mileage.

[0019] According to another aspect of the present application, an electronic device is provided, comprising:

[0020] at least one processor; and

[0021] a memory communicatively connected to the at least one processor; wherein,

[0022] The memory stores a computer program that can be executed by the at least one processor, and the computer program is executed by the at least one processor so that the at least one processor can execute the filter maintenance method described in any embodiment of the present application.

[0023] According to another aspect of the present application, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the filter maintenance method described in any embodiment of the present application when executed.

[0024] The technical solution of the embodiments of this application, on the one hand, determines the consumption pressure differential corresponding to each segmented interval by collecting a large number of sampled pressure differentials in different segmented intervals, thereby improving the accuracy of the consumption pressure differential. Furthermore, the remaining life can be more accurately determined using the consumption pressure differential and the end pressure differential. On the other hand, the remaining mileage can be calculated based on the actual change in the filter element pressure differential during use. Finally, the remaining life and remaining mileage are used to comprehensively determine the maintenance of the filter, thereby improving the accuracy and timeliness of filter maintenance and providing an important guarantee for users to replace the filter element in a timely manner.

[0025] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present application, nor is it intended to limit the scope of the present application. Other features of the present application will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0027] Figure 1 This is a flow chart of a filter maintenance method provided according to Example 1 of the present application;

[0028] Figure 2A This is a flow chart of a filter maintenance method applicable to the second embodiment of the present application;

[0029] Figure 2B is a schematic diagram of a corresponding relationship curve provided according to Example 2 of the present application;

[0030] Figure 2C This is a flow chart of replacing a filter element according to the second embodiment of the present application;

[0031] Figure 3 This is a structural schematic diagram of a filter maintenance device provided according to the third embodiment of the present application;

[0032] Figure 4 It is a structural diagram of an electronic device for implementing the filter maintenance method of an embodiment of the present application. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in a sequence other than those illustrated or described herein. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device comprising a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0035] Example 1

[0036] Figure 1 A flowchart of a filter maintenance method is provided for the first embodiment of the present application. This embodiment is applicable to the maintenance of a vehicle filter. The method can be performed by a filter maintenance device. The filter maintenance device can be implemented in the form of hardware and / or software. The filter maintenance device can be configured in an electronic device. Figure 1 As shown, the method includes:

[0037] S110: Obtain at least one sampled pressure difference of a filter element of a vehicle within a preset speed range.

[0038] Among them, the vehicles involved in the embodiments of the present application can be any vehicle equipped with a filter, including but not limited to road vehicles and non-road vehicles (such as engineering vehicles). There are many types of filters, such as air filters, fuel filters and oil filters, and the embodiments of the present application do not limit the applicable filters. The filter element can be a filter element installed in the filter of the vehicle, which is used to filter impurities in the air, fuel or oil. Then, it is understandable that the filter element needs to be replaced after a period of use to ensure the normal performance of the filter. Then, how long after the filter element is used, or how many mileage the vehicle has to travel before the filter element needs to be replaced (that is, the filter needs to be maintained) becomes a problem that needs to be explored.

[0039] The preset speed range can be the speed range of the vehicle's wheel hub. This preset speed range represents the speed of the corresponding vehicle wheel hub under normal working conditions of the filter (i.e., standard working conditions), which is generally equivalent to the speed range of normal vehicle driving, such as 900-1400 rpm. Of course, this preset speed range can be pre-set by relevant staff based on a large number of experiments or manual experience, and the embodiments of the present application are not limited to this. The sampled pressure difference can be the pressure difference collected in real time during the operation of the vehicle. Then, a lot of sampled pressure differences will be recorded during the driving of the vehicle, which will be used to judge the use of the filter element of the filter based on the pressure difference situation later. It can be imagined that the sampled pressure difference will be stored after collection and can be directly obtained.

[0040] S120 , determining the consumption pressure difference corresponding to each segmented interval according to the segmented intervals and each sampled pressure difference preset during the vehicle's driving process.

[0041] Among them, the segmented interval can be the distance interval or time interval for partitioning and statistically analyzing the sampled pressure difference during the vehicle's driving process. Of course, the segmented interval can be set by relevant technical personnel based on experiments or actual conditions. For example, it can be segmented according to every 1000km of mileage or every 10 hours of driving. However, it should be noted that each segmented interval is not connected end to end, but partially overlaps with each other. For example, the first segmented interval can be 0-1000km, the second segmented interval can be 10km-1010km, the third segmented interval can be 20km-1020km, and so on; if the first segmented interval is 0-10 hours, then the second segmented interval can be 0.1 hours-10.1 hours, the third segmented interval can be 0.2 hours-1.2 hours, etc. It should be noted that each segmented interval is equivalent to a node mileage. Since the remaining life and remaining mileage need to be calculated once when reaching each node mileage, the acquisition of the sampled pressure difference requires more than one node mileage.

[0042] Whether to use mileage or time to segment intervals requires further explanation. It is understandable that vehicles are generally divided into road vehicles and non-road vehicles. Road vehicles can include common family cars, trucks, etc., which are generally used to carry people and / or goods. Since these vehicles are mostly on the road, mileage can be used to divide the intervals. Non-road vehicles can include the vast majority of engineering vehicles, such as loaders, bulldozers, and excavators. These vehicles are mostly not on the road but are engaged in engineering operations. Therefore, time can be used to divide the intervals. This embodiment is only an example for illustration and does not specifically limit the segmented intervals.

[0043] The consumed pressure difference can characterize the consumption of the pressure difference in the filter at a certain node mileage (such as a segmented interval) during vehicle driving. According to the above, multiple sampled pressure differences are collected and stored in each segmented interval, and each segmented interval can correspond to a consumed pressure difference to characterize the pressure difference consumption of the filter in this interval. The consumed pressure difference is calculated based on the comprehensive calculation of multiple sampled pressure differences collected in a segmented interval. For example, a pre-trained machine learning model can be used for calculation, and the input of the model is multiple sampled pressure differences in the same segmented interval, and the model outputs the consumed pressure difference corresponding to this segmented interval.

[0044] In a special example, the average of the top 100 largest sampled pressure differences within the same segmented interval can be used as the consumption pressure difference. It should be noted that the vehicle will be affected by many factors under normal operation, resulting in the sampling pressure difference not being a sampling value under absolutely stable conditions, which will cause fluctuations in the sampling pressure difference. When the sampling pressure difference is small or even negative, its participation in the calculation is meaningless. Therefore, the largest part of the sampled pressure differences within the segmented interval is selected for average calculation. The resulting consumption pressure difference can more accurately reflect the consumption of the filter pressure difference, further ensuring the accuracy of subsequent calculations of the remaining life and remaining mileage of the filter element.

[0045] S130: Determine the remaining life of the filter element according to each consumed pressure difference and the final pressure difference of the filter element.

[0046] The final differential pressure is the maximum pressure differential allowed during use. This is an inherent property of the filter element, dependent solely on its material and manufacturing process, and unrelated to its use. This differential pressure can be directly determined from the filter element's manual or nameplate. The remaining life of the filter element indicates how long it can remain in normal use.

[0047] Since the consumption differential pressure represents the pressure drop after a certain mileage, the maximum differential pressure drop can be used to further determine the filter's remaining service life. This can be calculated using a pre-trained machine learning model, which takes the final differential pressure and the consumption differential pressure as input and outputs the filter's remaining lifespan.

[0048] S140: Obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element.

[0049] The consumption mileage can be the mileage traveled under standard operating conditions corresponding to the current consumption pressure differential. The corresponding relationship curve can be a curve showing how the consumption pressure differential changes with the filter element's consumption mileage. It should be noted that this corresponding relationship curve can be determined by relevant technical personnel based on extensive testing and stored locally or in the cloud for direct access. This corresponding relationship curve can reflect the actual change in the filter element pressure differential during use. In practice, this corresponding relationship curve does not change linearly, but rather exhibits an exponential upward trend.

[0050] S150 : Determine the remaining mileage of the filter element according to the corresponding relationship curve, the consumption pressure difference, and the preset end mileage.

[0051] The end mileage can be the usable mileage when the end pressure differential is reached under standard operating conditions. The end mileage is equivalent to a preset value specified during filter element production, such as 100,000 km or 1,000 hours. The consumed mileage can then be determined based on the corresponding relationship curve and the consumed pressure differential, and the remaining mileage of the filter element can be determined based on the consumed mileage and the end mileage. Of course, a pre-trained machine learning model can also be used for processing. The model inputs are the corresponding relationship curve, the consumed pressure differential, and the end mileage, and the model outputs the remaining mileage of the filter element.

[0052] S160: Maintain the filter according to at least one of the remaining life and the remaining mileage.

[0053] It should be noted that the remaining life and the remaining mileage are not the same concept. In practice, there are situations where the remaining life has not yet ended but the remaining mileage is almost gone, or the remaining mileage has not yet ended but the remaining life has almost gone. If you simply judge whether the filter needs maintenance or whether the filter element needs to be replaced based on either the remaining life or the remaining mileage, the rigor is poor. Therefore, it is more rigorous and accurate to judge whether the filter element needs to be replaced based on the remaining life and the remaining mileage. For example, the weight values ​​of the remaining life and the remaining mileage can be set, and the sum of the weight values ​​of the two is 1. After the weighted sum calculation, the comprehensive value of the remaining life and the remaining mileage is obtained to determine whether the filter element needs to be replaced. Alternatively, it is more reliable to judge that the filter element needs to be updated based on at least one of the remaining life and the remaining mileage reaching the limit value.

[0054] The technical solution of the embodiments of this application, on the one hand, determines the consumption pressure differential corresponding to each segmented interval by collecting a large number of sampled pressure differentials in different segmented intervals, thereby improving the accuracy of the consumption pressure differential. Furthermore, the remaining life can be more accurately determined using the consumption pressure differential and the end pressure differential. On the other hand, the remaining mileage can be calculated based on the actual change in the filter element pressure differential during use. Finally, the remaining life and remaining mileage are used to comprehensively determine the maintenance of the filter, thereby improving the accuracy and timeliness of filter maintenance and providing an important guarantee for users to replace the filter element in a timely manner.

[0055] Example 2

[0056] Figure 2A This is a flow chart of a filter maintenance method provided in the second embodiment of the present application. This embodiment of the present application further refines the calculation of the remaining life and remaining mileage based on the above embodiments. Figure 2A As shown, the method includes:

[0057] S210: Obtain at least one sampled pressure difference of a filter element of a vehicle within a preset speed range.

[0058] S220 : Determine the consumption pressure difference corresponding to each segmented interval according to the segmented intervals and each sampled pressure difference preset during the vehicle's driving process.

[0059] S230: Determine the initial pressure difference of the filter element according to each consumed pressure difference.

[0060] Among them, the initial pressure difference can be the pressure difference of the filter element at zero kilometers (that is, a new filter element). That is, when the new filter element is installed in the filter, there is an original pressure difference. This pressure difference varies depending on the filter element and the vehicle filter, so it needs to be further determined. In theory, the initial pressure difference should be less than and close to the consumption pressure difference obtained by the first calculation (that is, the consumption pressure difference corresponding to the first segmented interval), but in actual conditions, due to the different effects of the vehicle on the sampling pressure difference at different times during the driving process, the consumption pressure difference calculated for the nth time is not necessarily greater than the consumption pressure difference calculated for the n-1th time. Therefore, the minimum value of all the consumption pressure differences calculated in these n times can be used as the initial pressure difference.

[0061] S240: Determine the remaining life according to the initial pressure difference, the consumed pressure difference, and the final pressure difference.

[0062] The difference between the initial and final pressure differentials represents the pressure differential at which the filter element can be consumed. The consumed pressure differential represents the pressure differential that has already been consumed. This allows us to further calculate how much of the filter element's lifespan has been consumed by the consumed pressure differential, thereby determining the remaining lifespan. This remaining lifespan can be expressed as a percentage, for example, indicating 20% ​​of the filter element's lifespan remains. Alternatively, a pre-trained machine learning model can be used. This model takes as input the initial, consumed, and final pressure differentials, and outputs the remaining lifespan of the filter element.

[0063] In an optional embodiment, determining the remaining life based on the initial pressure difference, the consumption pressure difference and the termination pressure difference may include: determining the available pressure difference and the remaining pressure difference of the filter element based on the initial pressure difference, the consumption pressure difference and the termination pressure difference; determining the remaining life of the filter element based on the available pressure difference and the remaining pressure difference.

[0064] The available pressure differential can be the unused pressure differential at zero kilometers (i.e., a new filter element); the residual pressure differential can be the unused pressure differential at a certain node mileage (segmented interval). Furthermore, determining the remaining life based on the initial pressure differential, the consumed pressure differential, and the final pressure differential can include: determining the available pressure differential of the filter element based on the initial pressure differential and the final pressure differential; determining the residual pressure differential of the filter element based on the final pressure differential and the consumed pressure differential; and determining the remaining life of the filter element based on the available pressure differential and the residual pressure differential.

[0065] The difference between the final pressure difference and the initial pressure difference is taken as the available pressure difference, and the formula is as follows:

[0066] eP=tP-aP;

[0067] Where, eP is the available pressure difference, tP is the end pressure difference, and aP is the initial pressure difference.

[0068] Accordingly, the difference between the end pressure difference and the consumption pressure difference is taken as the residual pressure difference, and the formula is as follows:

[0069] rP=tP-ΔPn;

[0070] Among them, rP is the residual pressure difference, tP is the end pressure difference, and ΔPn is the consumed pressure difference.

[0071] It can be understood that the percentage of the remaining pressure difference to the available pressure difference is the remaining life, and the formula is as follows:

[0072] rL=(rP / eP)×100%;

[0073] Where rL is the remaining life, rP is the remaining pressure difference, and eP is the available pressure difference.

[0074] The above embodiment further calculates the remaining life by determining the available pressure difference and the remaining pressure difference, thereby providing users with a practical life calculation method; moreover, it eliminates the influence of the initial pressure difference on the remaining life calculation, thereby further improving the accuracy of the remaining life calculation.

[0075] S250: Obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element.

[0076] S260 : Determine a corresponding relationship function according to the corresponding relationship curve, the initial pressure difference, the initial mileage of the vehicle, the ending pressure difference, and the preset ending mileage.

[0077] The correspondence function can be a function of a correspondence curve. It is understandable that the correspondence curve is obtained by fitting a large number of test results, and the functional relationship corresponding to the curve requires further calculation to determine the coefficients and / or constants in the functional relationship. It is conceivable that different filters and filter elements have different values ​​for these coefficients and / or constants. The initial mileage can be 0 km (i.e., no filter element is used). Based on the initial pressure difference and initial mileage, as well as the ending pressure difference and ending mileage, the coefficients and / or constants in the functional relationship can be determined to obtain the correspondence function of the current filter element.

[0078] For example, Figure 2B As shown, it is assumed that the function expression of the corresponding relationship curve is:

[0079] y=he kx ;

[0080] Where y corresponds to the pressure difference and x corresponds to the mileage. Then, based on the initial pressure difference aP and the initial mileage aS = 0, we can substitute the above expression to find the coefficient h:

[0081] h=aP;

[0082] According to the end pressure difference tP and the end mileage tS, the coefficient k can be calculated by substituting it into the above expression:

[0083] k = [ln(tP / aP)] / tS;

[0084] Substituting h and k back into the original expression, we can get the corresponding function of the current filter element.

[0085] S270: Determine the remaining mileage of the filter element according to the corresponding relationship function, the consumed pressure difference, and the end mileage.

[0086] Given the consumption pressure differential, the mileage consumed can be calculated based on the previously determined correspondence function. The remaining mileage of the filter element can then be determined based on the consumption mileage and the final mileage. Alternatively, a machine learning model can be used for this calculation, taking the correspondence function, the consumption pressure differential, and the final mileage as inputs and outputting the remaining mileage of the filter element.

[0087] In an optional embodiment, determining the remaining mileage of the filter element based on the corresponding relationship function, consumption pressure difference and termination mileage may include: determining the consumption mileage based on the corresponding relationship function and consumption pressure difference; determining the remaining mileage of the filter element based on the termination mileage and consumption mileage.

[0088] Given the consumption pressure difference, substitute it into the corresponding relationship function determined in the above steps to obtain the consumption mileage corresponding to the consumption pressure difference, which is calculated as follows:

[0089] ΔSn=[ln(ΔPn / h)] / k;

[0090] Among them, ΔSn is the consumption mileage; ΔPn is the consumption pressure difference.

[0091] Furthermore, the remaining mileage is calculated, and the difference between the end mileage and the consumed mileage is taken as the remaining mileage:

[0092] rS=tS-ΔSn;

[0093] Among them, rS is the remaining mileage, tS is the end mileage, and ΔSn is the consumed mileage.

[0094] In the above embodiment, the consumed mileage is calculated according to the corresponding relationship function to further obtain the remaining mileage. The corresponding relationship function reflects the actual change between the filter element pressure difference and the mileage. Such a calculation method can ensure the accuracy of the remaining mileage calculation.

[0095] When at least one of S280, remaining life and remaining mileage meets the preset filter element replacement conditions, perform filter maintenance.

[0096] The filter element replacement conditions can be based on the remaining lifespan and remaining mileage. For example, the filter element needs to be replaced when the remaining lifespan is less than 5%, or when the remaining mileage is less than 500 km. When either the remaining lifespan or the remaining mileage meets the filter element replacement conditions, filter maintenance should be performed and a new filter element should be installed.

[0097] The technical solution of the embodiment of the present application further refines how to calculate the remaining life and remaining mileage. The remaining life is calculated based on the initial pressure difference, the consumption pressure difference and the termination pressure difference, and the corresponding relationship curve is converted into a corresponding relationship function to further calculate the remaining mileage. Finally, the maintenance of the filter is comprehensively judged based on the remaining life and the remaining mileage, so that users can predict the maintenance timing more accurately, which is equivalent to ensuring the normal operation and maintenance of the vehicle.

[0098] In a specific example, Figure 2C As shown, the node mileage uS (i.e., segment interval) is preset to 1000 km or 10 hours, the remaining life rL is 100%, and the remaining mileage rS is equal to the end mileage tS (which can be preset to 100,000 km or 1000 hours). The sampling mileage dSi is then determined to be greater than or equal to the node mileage uS. If not, the monitoring continues. When dSi ≥ uS, all sampled pressure differences dPi between the vehicle mileage dSi - 1000 km (or, based on the time: dSi - 10 hours) and dSi are collected. The top 100 largest sampled pressure differences dPn1, dPn2, ..., dPn100 within the vehicle speed range of 900 to 1400 rpm are then selected. The minimum of these consumed pressure differences is taken as the initial pressure difference, and the available pressure difference eP = tP - aP is calculated. The consumed mileage ΔSn = tS and the remaining mileage rS = 0 are then determined. The remaining pressure difference rP = 0 and the remaining life rL = 0% are then calculated.

[0099] At this point, determine whether the consumed differential pressure ΔPn is less than the final differential pressure tP. If not, the filter element's differential pressure has been completely consumed, and the remaining differential pressure and remaining life are both calculated to be 0, and the remaining mileage is also 0, indicating that the filter element needs to be replaced immediately. If the consumed differential pressure is less than the final differential pressure, calculate the remaining differential pressure rP = tP - ΔPn, and the remaining life rL = (rP / eP) × 100%.

[0100] Next, obtain the corresponding relationship curve y=he between pressure difference y and mileage x kx Based on aP and aS = 0, calculate h = aP. Simultaneously, based on tP and tS, calculate k = [ln(tP / aP)] / tS. Then, calculate the consumed mileage ΔSn = [ln(ΔPn / h)] / k, and the remaining mileage rS = tS - ΔSn. Finally, based on the values ​​of rL and / or rS, determine whether the filter element needs to be replaced. For example, if either rL or rS reaches the limit, the filter element should be replaced.

[0101] Example 3

[0102] Figure 3 This is a schematic diagram of the structure of a filter maintenance device provided in Example 3 of this application. Figure 3 As shown, the device 300 includes:

[0103] A sampling differential pressure acquisition module 310 is configured to acquire at least one sampling differential pressure of a vehicle filter element within a preset speed range;

[0104] The consumption pressure difference determination module 320 is used to determine the consumption pressure difference corresponding to each segment interval according to the preset segment intervals and each sampled pressure difference during the vehicle's driving process;

[0105] The remaining life determination module 330 is used to determine the remaining life of the filter element according to each consumption pressure difference and the end pressure difference of the filter element;

[0106] A relationship curve acquisition module 340 is used to obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element;

[0107] The remaining mileage determination module 350 is used to determine the remaining mileage of the filter element according to the corresponding relationship curve, the consumption pressure difference and the preset end mileage;

[0108] The filter maintenance module 360 ​​is configured to maintain the filter according to at least one of the remaining life and the remaining mileage.

[0109] The technical solution of the embodiments of this application, on the one hand, determines the consumption pressure differential corresponding to each segmented interval by collecting a large number of sampled pressure differentials in different segmented intervals, thereby improving the accuracy of the consumption pressure differential. Furthermore, the remaining life can be more accurately determined using the consumption pressure differential and the end pressure differential. On the other hand, the remaining mileage can be calculated based on the actual change in the filter element pressure differential during use. Finally, the remaining life and remaining mileage are used to comprehensively determine the maintenance of the filter, thereby improving the accuracy and timeliness of filter maintenance and providing an important guarantee for users to replace the filter element in a timely manner.

[0110] In an optional implementation, the remaining life determining module 330 may include:

[0111] An initial pressure difference determination unit, used for determining the initial pressure difference of the filter element according to each consumption pressure difference;

[0112] The remaining life determining unit is used to determine the remaining life according to the initial pressure difference, the consumption pressure difference and the termination pressure difference.

[0113] In an optional implementation, the remaining life determining unit may include:

[0114] A pressure differential calculation subunit, used to determine the available pressure differential and the residual pressure differential of the filter element according to the initial pressure differential, the consumed pressure differential and the end pressure differential;

[0115] The remaining life calculation subunit is used to determine the remaining life of the filter element based on the available pressure difference and the remaining pressure difference.

[0116] In an optional implementation, the remaining life calculation subunit may be used to:

[0117] An available differential pressure determination slave unit is used to determine the available differential pressure of the filter element according to the initial differential pressure and the final differential pressure;

[0118] The residual pressure differential determination slave unit is used to determine the residual pressure differential of the filter element according to the end pressure differential and the consumption pressure differential;

[0119] The remaining life determination slave unit is used to determine the remaining life of the filter element based on the available pressure differential and the remaining pressure differential.

[0120] In an optional implementation, the remaining mileage determination module 350 may include:

[0121] a relationship function determination unit, configured to determine a corresponding relationship function according to the corresponding relationship curve, the initial pressure difference, the initial mileage of the vehicle, the ending pressure difference, and the preset ending mileage;

[0122] The remaining mileage determination unit is used to determine the remaining mileage of the filter element according to the corresponding relationship function, the consumption pressure difference and the end mileage.

[0123] In an optional implementation, the remaining mileage determination unit may include:

[0124] The consumption mileage determination subunit is used to determine the consumption mileage according to the corresponding relationship function and the consumption pressure difference;

[0125] The remaining mileage calculation subunit is used to determine the remaining mileage of the filter element according to the termination mileage and the consumed mileage.

[0126] In an optional embodiment, the filter maintenance module 360 ​​may be specifically configured to:

[0127] When at least one of the remaining service life and the remaining mileage meets the preset filter element replacement conditions, the filter is maintained.

[0128] The filter maintenance device provided in the embodiments of the present application can execute the filter maintenance method provided in any embodiment of the present application, and has functional modules and beneficial effects corresponding to executing each filter maintenance method.

[0129] Example 4

[0130] Figure 4A schematic diagram of the structure of an electronic device 10 that can be used to implement an embodiment of the present application is shown. The electronic device is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workstations, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The electronic device can also represent various forms of mobile devices, such as personal digital processing, cellular phones, smart phones, wearable devices (such as helmets, glasses, watches, etc.) and other similar computing devices. The components shown herein, their connections and relationships, and their functions are merely examples and are not intended to limit the implementation of the present application described and / or required herein.

[0131] like Figure 4 As shown, the electronic device 10 includes at least one processor 11 and a memory, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., which is communicatively connected to the at least one processor 11. The memory stores a computer program that can be executed by the at least one processor. The processor 11 can perform various appropriate actions and processes according to the computer program stored in the read-only memory (ROM) 12 or the computer program loaded from the storage unit 18 into the random access memory (RAM) 13. Various programs and data required for the operation of the electronic device 10 can also be stored in the RAM 13. The processor 11, ROM 12, and RAM 13 are connected to each other via a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0132] Multiple components in the electronic device 10 are connected to the I / O interface 15, including an input unit 16, such as a keyboard, a mouse, etc.; an output unit 17, such as various types of displays, speakers, etc.; a storage unit 18, such as a magnetic disk, an optical disk, etc.; and a communication unit 19, such as a network card, a modem, a wireless communication transceiver, etc. The communication unit 19 allows the electronic device 10 to exchange information / data with other devices via a computer network such as the Internet and / or various telecommunication networks.

[0133] Processor 11 can be any general-purpose and / or specialized processing component with processing and computing capabilities. Some examples of processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various specialized artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any other suitable processor, controller, microcontroller, etc. Processor 11 executes the various methods and processes described above, such as the filter maintenance method.

[0134] In some embodiments, the filter maintenance method can be implemented as a computer program tangibly embodied in a computer-readable storage medium, such as storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on electronic device 10 via ROM 12 and / or communication unit 19. When the computer program is loaded into RAM 13 and executed by processor 11, one or more steps of the filter maintenance method described above can be performed. Alternatively, in other embodiments, processor 11 can be configured to execute the filter maintenance method via any other suitable means (e.g., via firmware).

[0135] Various embodiments of the systems and techniques described herein can be implemented in digital electronic circuit systems, integrated circuit systems, field programmable gate arrays (FPGAs), application specific integrated circuits (ASICs), application specific standard products (ASSPs), system-on-chip systems (SOCs), programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various embodiments can include being implemented in one or more computer programs that are executable and / or interpreted on a programmable system that includes at least one programmable processor, which can be a special purpose or general purpose programmable processor that can receive data and instructions from a storage system, at least one input device, and at least one output device, and transmit data and instructions to the storage system, the at least one input device, and the at least one output device.

[0136] Computer programs for implementing the methods of the present application may be written in any combination of one or more programming languages. These computer programs may be provided to a processor of a general-purpose computer, a special-purpose computer, or other programmable data processing device, such that when the computer program is executed by the processor, the functions / operations specified in the flowcharts and / or block diagrams are implemented. The computer program may be executed entirely on the machine, partially on the machine, as a stand-alone software package, partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0137] In the context of the present application, a computer-readable storage medium can be a tangible medium that can contain or store a computer program for use by an instruction execution system, device or equipment or used in combination with an instruction execution system, device or equipment. A computer-readable storage medium can include, but is not limited to, electronic, magnetic, optical, electromagnetic, infrared or semiconductor systems, devices or equipment, or any suitable combination of the foregoing. Alternatively, a computer-readable storage medium can be a machine-readable signal medium. A more specific example of a machine-readable storage medium can include an electrical connection based on one or more lines, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing.

[0138] To provide interaction with a user, the systems and techniques described herein can be implemented on an electronic device having: a display device (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor) for displaying information to the user; and a keyboard and pointing device (e.g., a mouse or trackball) through which the user can provide input to the electronic device. Other types of devices can also be used to provide interaction with the user; for example, the feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including acoustic input, voice input, or tactile input).

[0139] The systems and techniques described herein can be implemented in a computing system that includes back-end components (e.g., as a data server), or a computing system that includes middleware components (e.g., an application server), or a computing system that includes front-end components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with implementations of the systems and techniques described herein), or a computing system that includes any combination of such back-end components, middleware components, or front-end components. The components of the system can be interconnected by any form or medium of digital data communication (e.g., a communication network). Examples of communication networks include: a local area network (LAN), a wide area network (WAN), a blockchain network, and the Internet.

[0140] A computing system may include clients and servers. The clients and servers are typically remote from each other and typically interact via a communication network. This client-server relationship arises through computer programs running on the respective computers, creating a client-server relationship. The server may be a cloud server, also known as a cloud computing server or cloud host. This server is a hosting product within the cloud computing service ecosystem that addresses the management difficulties and limited scalability of traditional physical hosting and VPS services.

[0141] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in this application can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of this application can be achieved. This is not limited herein.

[0142] The above specific embodiments do not constitute a limitation on the scope of protection of this application. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application shall be included within the scope of protection of this application.

Claims

1. A filter maintenance method, characterized in that: The method comprises: Obtaining at least one sampled pressure difference of a filter element of a vehicle within a preset speed range; Determine the consumption pressure difference corresponding to each segmented interval according to the segmented intervals and each sampled pressure difference preset during the driving process of the vehicle; determining the remaining life of the filter element according to each of the consumed pressure differentials and the final pressure differential of the filter element; Obtaining a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element; determining the remaining mileage of the filter element according to the corresponding relationship curve, the consumption pressure difference and a preset end mileage; The filter is maintained according to the remaining life and the remaining mileage.

2. The method according to claim 1, characterized in that Determining the remaining life of the filter element according to each of the consumed pressure differences and the final pressure difference of the filter element includes: Determining the initial pressure difference of the filter element according to each of the consumed pressure differences; The remaining life is determined based on the initial pressure difference, the consumed pressure difference, and the end pressure difference.

3. The method according to claim 2, characterized in that The determining the remaining life according to the initial pressure difference, the consumption pressure difference, and the termination pressure difference includes: Determining the available pressure difference and the residual pressure difference of the filter element according to the initial pressure difference, the consumed pressure difference and the terminal pressure difference; The remaining life of the filter element is determined based on the available pressure difference and the residual pressure difference.

4. The method according to claim 3, characterized in that The determining the remaining life according to the initial pressure difference, the consumption pressure difference, and the termination pressure difference includes: determining the available pressure difference of the filter element according to the initial pressure difference and the final pressure difference; determining the residual pressure difference of the filter element according to the termination pressure difference and the consumption pressure difference; The remaining life of the filter element is determined based on the available pressure difference and the residual pressure difference.

5. The method according to claim 2, characterized in that Determining the remaining mileage of the filter element according to the corresponding relationship curve, the consumption pressure difference, and a preset end mileage includes: Determining a corresponding relationship function according to the corresponding relationship curve, the initial pressure difference, the initial mileage of the vehicle, the ending pressure difference, and a preset ending mileage; The remaining mileage of the filter element is determined according to the corresponding relationship function, the consumption pressure difference and the termination mileage.

6. The method according to claim 5, characterized in that Determining the remaining mileage of the filter element according to the corresponding relationship function, the consumption pressure difference, and the termination mileage includes: determining the consumed mileage according to the corresponding relationship function and the consumed pressure difference; The remaining mileage of the filter element is determined according to the termination mileage and the consumed mileage.

7. The method according to any one of claims 1 to 6, characterized in that Maintaining the filter according to the remaining life and the remaining mileage includes: When at least one of the remaining life and the remaining mileage meets a preset filter element replacement condition, the filter is maintained.

8. A filter maintenance device, characterized in that: include: A sampling pressure difference acquisition module, used to obtain at least one sampling pressure difference of the vehicle's filter element within a preset speed range; a consumption pressure difference determination module, configured to determine the consumption pressure difference corresponding to each segmented interval according to the segmented intervals and each sampled pressure difference preset during the driving process of the vehicle; a remaining life determining module, configured to determine the remaining life of the filter element according to each of the consumption pressure differentials and the termination pressure differential of the filter element; A relationship curve acquisition module, used to obtain a corresponding relationship curve between the consumption pressure difference and the consumption mileage of the filter element; a remaining mileage determination module, configured to determine the remaining mileage of the filter element based on the corresponding relationship curve, the consumption pressure difference, and a preset end mileage; The filter maintenance module is used to maintain the filter according to the remaining life and the remaining mileage.

9. An electronic device, characterized in that: The electronic device comprises: at least one processor; and a memory communicatively connected to the at least one processor; wherein, The memory stores a computer program executable by the at least one processor. The computer program is executed by the at least one processor to enable the at least one processor to perform the filter maintenance method according to any one of claims 1 to 7.

10. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a processor to implement the filter maintenance method according to any one of claims 1 to 7 when executed.

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