A filter element maintenance prompting method, system, storage medium and vehicle

Abstract

The application provides a filter maintenance prompting method and system, a storage medium and a vehicle, and belongs to the technical field of vehicles.The filter maintenance prompting method comprises the following steps: determining whether the vehicle is in a target environment based on the positioning information of the vehicle; when the vehicle is in the target environment, acquiring the ambient temperature around an air cleaner of the vehicle and the dust information on the air outlet side of the air cleaner; and outputting first filter maintenance prompting information based on the ambient temperature and / or the dust information.When the filter is working, if it is outside the appropriate working temperature range, the filtering capacity of the filter will be greatly reduced, and at the same time, if the filtering capacity of the filter is reduced, the particle diameter and the dust concentration on the air outlet side of the air cleaner will be greatly increased.Therefore, whether the filter is in a normal working state can be determined through the ambient temperature and the dust information, and the filter can be replaced in time when it is determined that the filter is in an abnormal working state.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a filter element maintenance prompting method and system, a storage medium and a vehicle. BACKGROUND

[0002] The filter element refers to an important component in the air cleaner for blocking dust and impurities in the air to obtain clean air. In order to ensure the filtering effect of the filter element, the filter element should be replaced according to a certain replacement period. In a suitable environment, the replacement period of the filter element can be determined according to the conventional maintenance standard of the vehicle, and the replacement period in the suitable environment is usually longer.

[0003] However, in a harsh environment such as a desert or high-temperature sand-dust weather, the service life of the filter element will be sharply shortened, the conventional maintenance standard is invalid, and thus the filter element cannot be replaced in time, resulting in damage to the engine. SUMMARY

[0004] Therefore, the present application provides a filter element maintenance prompting method and system, a storage medium and a vehicle to solve the problem of how to replace the filter element in time.

[0005] In a first aspect, the present application provides a filter element maintenance prompting method, which comprises the following steps:

[0006] determining whether the vehicle is in a target environment based on positioning information of the vehicle;

[0007] when the vehicle is in the target environment, obtaining an ambient temperature around an air cleaner of the vehicle and dust information of an air outlet side of the air cleaner, the dust information comprising particle diameter and / or dust concentration;

[0008] outputting first filter element maintenance prompting information based on the ambient temperature and / or the dust information.

[0009] Optionally, after the first filter element maintenance prompting information is outputted, the method further comprises the following steps:

[0010] determining a speed threshold of the vehicle in the target environment based on the ambient temperature and / or the dust information;

[0011] controlling a driving speed of the vehicle to be less than the speed threshold to reduce the load of the engine.

[0012] Optionally, when the vehicle is in the target environment, the method further comprises the following steps:

[0013] obtaining a driving mileage of the vehicle in the target environment;

[0014] when the driving mileage is less than the mileage threshold, periodically performing the steps of: acquiring an ambient temperature around an air filter of the vehicle, and dust information of an air outlet side of the air filter, the dust information including a particle diameter and / or a dust concentration; based on the ambient temperature and / or the dust information, outputting a first filter maintenance prompt information;

[0015] when the driving mileage is greater than or equal to the mileage threshold, directly outputting a second filter maintenance prompt information.

[0016] Optionally, the outputting of the first filter maintenance prompt information based on the ambient temperature and / or the dust information comprises:

[0017] acquiring a brand to which the filter belongs;

[0018] based on the brand, determining a temperature threshold of the ambient temperature;

[0019] when the ambient temperature is greater than the temperature threshold and / or the dust information does not satisfy a preset condition, outputting the first filter maintenance prompt information, wherein the preset condition is that the particle diameter is greater than a diameter threshold and / or the dust concentration is greater than a concentration threshold.

[0020] Optionally, the acquiring of the brand to which the filter belongs comprises:

[0021] scanning a brand identifier configured to the filter to obtain the brand to which the filter belongs;

[0022] wherein the brand identifier comprises at least one of a bar code and a two-dimensional code.

[0023] Optionally, the brand to which the filter belongs comprises an authenticated brand and a non-authenticated brand, and the determining of the temperature threshold of the ambient temperature based on the brand comprises:

[0024] when the brand of the filter is the authenticated brand, determining the temperature threshold as a first temperature threshold;

[0025] when the brand of the filter is the non-authenticated brand, determining the temperature threshold as a second temperature threshold;

[0026] wherein the first temperature threshold is greater than the second temperature threshold.

[0027] Optionally, the outputting of the first filter maintenance prompt information comprises:

[0028] acquiring a pressure difference between an air inlet side of the filter and an air outlet side of the filter;

[0029] based on the pressure difference, determining a risk level of the filter;

[0030] output the first filter maintenance prompt information corresponding to the risk level.

[0031] In a second aspect, the present application provides a filter maintenance prompt system, comprising:

[0032] a judging module configured to determine whether the vehicle is in a target environment based on positioning information of the vehicle;

[0033] a obtaining module configured to obtain an ambient temperature around an air cleaner of the vehicle and dust information on an air outlet side of the air cleaner when the vehicle is in the target environment, the dust information comprising particle diameter and / or dust concentration;

[0034] a first executing module configured to output first filter maintenance prompt information based on the ambient temperature and / or the dust information.

[0035] In a third aspect, the present application provides a computer readable storage medium having a computer program stored thereon, the program being executed by a processor to implement the steps of the filter maintenance prompt method according to the first aspect.

[0036] In a fourth aspect, the present application provides a vehicle comprising the filter maintenance prompt system according to the second aspect, or comprising a control module configured to implement the steps of the filter maintenance prompt method according to the first aspect.

[0037] The present application provides a filter maintenance prompt method, system, storage medium and vehicle, the method comprising: determining whether the vehicle is in a target environment based on positioning information of the vehicle; obtaining an ambient temperature around an air cleaner of the vehicle and dust information on an air outlet side of the air cleaner when the vehicle is in the target environment, the dust information comprising particle diameter and / or dust concentration; and outputting first filter maintenance prompt information based on the ambient temperature and / or the dust information.

[0038] The present application determines whether the vehicle is in a target environment based on positioning information of the vehicle. When the vehicle is in the target environment, first filter maintenance prompt information is outputted based on an ambient temperature around an air cleaner of the vehicle and particle diameter and / or dust concentration on an air outlet side of the air cleaner. When the filter is working, if it is outside the suitable working temperature range, the filtering capacity of the filter will be greatly reduced. Meanwhile, if the filtering capacity of the filter is reduced, the particle diameter and / or dust concentration on the air outlet side of the air cleaner will be greatly increased. Therefore, the ambient temperature and dust information can be used to determine whether the filter is in a normal working state, and the driver can receive the first filter maintenance prompt information in time when the filter is determined to be in an abnormal working state, so that the filter can be replaced in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. 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.

[0040] Figure 1 This is a schematic structural diagram of a supercharged engine intake system provided in an embodiment of the present application;

[0041] Figure 2 This is a schematic structural diagram of an intake system for a naturally aspirated engine provided in an embodiment of the present application;

[0042] Figure 3 This is a step diagram of a filter element maintenance reminder method provided in an embodiment of the present application;

[0043] Figure 4 This is a step diagram of a filter element maintenance prompt method for controlling vehicle speed provided by an embodiment of the present application;

[0044] Figure 5 This is a step diagram of a filter element maintenance reminder method based on mileage provided in an embodiment of the present application;

[0045] Figure 6 This is a step diagram of a filter element maintenance reminder method based on filter element brand provided in an embodiment of the present application;

[0046] Figure 7 This is a step diagram of a method for outputting first filter element maintenance prompt information provided by an embodiment of the present application;

[0047] Figure 8 This is a flow chart of a filter element maintenance reminder method provided by an embodiment of the present application;

[0048] Figure 9 This is a structural diagram of a vehicle filter element maintenance reminder device provided in an embodiment of the present application;

[0049] Figure 10 This is a diagram illustrating a method for reminding filter element maintenance provided by an embodiment of the present application;

[0050] Figure 11 It is a structural diagram of a filter element maintenance reminder system provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] refer to Figure 1 A schematic diagram of the structure of a supercharged engine intake system is shown, and Figure 2 The diagram shows the structure of a naturally aspirated engine intake system. Both the supercharged and naturally aspirated engine intake systems include an air filter. The air filter contains a filter element. The side of the air filter closest to the intake pipe is the intake side, while the side of the air filter closest to the outlet pipe is the outlet side.

[0053] Filter elements are used to block dust and impurities from the air, ensuring clean air. To ensure effective isolation, they should be replaced at regular intervals. In suitable environments, the filter element replacement interval can be determined based on standard vehicle maintenance standards, and in suitable environments, the replacement interval is typically longer.

[0054] However, in harsh environments such as deserts or high-temperature sandstorms, the service life of the filter element may be drastically shortened, rendering conventional maintenance standards ineffective, making it impossible to clearly determine the replacement cycle of the filter element, and thus making it impossible to replace the filter element in time when it fails.

[0055] Based on this, in order to solve the problem of how to replace the filter element in time, the present application proposes a filter element maintenance reminder method, system, storage medium and vehicle, which determines whether the vehicle is in the target environment through the vehicle's positioning information. When the vehicle is in the target environment, the first filter element maintenance reminder information is output based on the ambient temperature of the vehicle's air filter and the particle diameter and / or dust concentration on the air filter outlet side. When the filter element is working, if it is outside the suitable operating temperature range, the filtering capacity of the filter element will be greatly reduced. At the same time, if the filtering capacity of the filter element is reduced, the particle diameter and dust concentration on the air filter outlet side will increase significantly. Therefore, it is possible to determine whether the filter element is in a normal working state through the ambient temperature and dust information, and then when it is determined that the filter element is in an abnormal working state, the driver will receive the first filter element maintenance reminder information in time, so that the filter element can be replaced in time. Specifically including:

[0056] The first aspect of this application proposes an embodiment, such as Figure 3 As shown in the figure, a filter element maintenance reminder method is used in a vehicle controller. The main steps include:

[0057] Step S101, based on the positioning information of the vehicle, determine whether the vehicle is in the target environment.

[0058] The positioning information can be the latitude and longitude coordinates of the vehicle, which is obtained by the GPS (Global Positioning System) system, Beidou positioning system installed on the vehicle, or a mobile device in communication connection with the vehicle and having positioning function. The target environment refers to an environment with high dust or sand content in the air, such as sand weather, or desert and gobi regions.

[0059] In an optional embodiment, if the target environment is sand weather, the weather information of the current location of the vehicle can be obtained from the weather detection system according to the positioning information of the vehicle, and based on the obtained weather information, it is determined whether the vehicle is in the target environment. If the target environment is a desert and gobi region, the positioning information can be compared with the range of the desert and gobi region in the map, and it is determined whether the vehicle is currently in the range of the desert and gobi region according to the positioning information, to determine whether the vehicle is in the target environment.

[0060] Step S102, when the vehicle is in the target environment, obtaining the ambient temperature around the air filter of the vehicle and the dust information of the air outlet side of the air filter, the dust information including particle diameter and / or dust concentration.

[0061] Taking the target environment as sand weather and desert and gobi region respectively as examples. When the target environment is sand weather, if the weather information obtained from the weather detection system indicates that the weather at the current location of the vehicle is sand weather, it is determined that the vehicle is in the target environment; when the target environment is desert and gobi, if the positioning information indicates that the current location of the vehicle is located within the range of the desert and gobi, it is determined that the vehicle is in the target environment.

[0062] When the vehicle is in the target environment, it indicates that the filter element is in a harsh environment where the service life may be sharply shortened. At this time, the parameters of the filter element need to be monitored to determine whether the filter element is currently in normal working condition.

[0063] Because in the production process, in order to ensure that the air entering the engine combustion chamber has been filtered, a circle of sealant needs to be applied on the edge of the filter element to prevent air leakage, therefore, in order to ensure the effectiveness of the filtering effect of the filter element, the sealant should be in an effective state. Based on this, combined with the factors affecting the state of the sealant, when the ambient temperature of the air filter is higher than the melting point of the sealant, the sealant will melt and fail, therefore, when the vehicle is in the target environment, the state of the sealant can be determined through the ambient temperature of the air filter, and then the current normal working condition of the filter element is determined based on the state of the sealant.

[0064] In an alternative embodiment, the shell temperature of the air cleaner shell and the air temperature inside the air cleaner have a direct impact on the ambient temperature around the air cleaner due to the ambient temperature around the air cleaner, and therefore the shell temperature and the air temperature can accurately reflect the ambient temperature around the air cleaner. Based on this, when obtaining the ambient temperature around the air cleaner, a temperature sensor can be installed on the lower shell of the air cleaner or inside the air cleaner, and the ambient temperature around the air cleaner is determined based on the shell temperature of the air cleaner or the air temperature inside the air cleaner measured by the temperature sensor.

[0065] At the same time, if the filter element is damaged and the filtering effect is reduced, the particle diameter on the air outlet side of the air cleaner will increase greatly, and the dust concentration will also increase greatly, so when the vehicle is in the target environment, the current normal working condition of the filter element can also be determined through the particle diameter and the dust concentration on the air outlet side of the air cleaner.

[0066] In summary, when the vehicle is in the target environment, the ambient temperature of the air cleaner and the dust information on the air outlet side of the air cleaner should be obtained.

[0067] Step S103, outputting a first filter element maintenance prompt information based on the ambient temperature and / or the dust information.

[0068] After obtaining the ambient temperature and the dust information, the first filter element maintenance prompt information can be output based on the ambient temperature, or the first filter element maintenance prompt information can be output based on the dust information, or the first filter element maintenance prompt information can be output based on the ambient temperature and the dust particle.

[0069] In an alternative embodiment, the first filter element maintenance prompt information can be output when the ambient temperature is within a preset range, or when the dust information meets a preset condition, or when the ambient temperature is within a preset range and the dust information meets a preset condition.

[0070] Considering that when the ambient temperature is within a preset range, or when the dust information meets a preset condition, or when the ambient temperature is within a preset range and the dust information meets a preset condition, the filter element may be in a damaged state that cannot be repaired, therefore, the first filter element maintenance prompt information can be a prompt information reminding the driver to replace the filter element. Specifically, the first filter element maintenance prompt information can be transmitted to the driver in the form of voice through the voice assistant on the vehicle, or displayed in the form of image text on the vehicle center screen or instrument screen.

[0071] The present application determines whether the vehicle is in the target environment through the positioning information of the vehicle. When the vehicle is in the target environment, the first filter element maintenance reminder information is output based on the ambient temperature of the vehicle air filter and the particle diameter and / or dust concentration on the air filter outlet side. When the filter element is working, if it is outside the suitable working temperature range, the filtering capacity of the filter element will be greatly reduced. At the same time, if the filtering capacity of the filter element is reduced, the particle diameter and dust concentration on the air filter outlet side will increase significantly. Therefore, it is possible to determine whether the filter element is in a normal working state through the ambient temperature and dust information, and then when it is determined that the filter element is in an abnormal working state, the driver will receive the first filter element maintenance reminder information in time, so that the filter element can be replaced in time.

[0072] In another embodiment of the present application, in addition to the steps in the above-mentioned embodiment, the following steps are further included:

[0073] Alternatively, as Figure 4 As shown in the step diagram of a filter element maintenance prompt method for controlling vehicle speed, after step S103, the method further includes:

[0074] Step S104 : determining a speed threshold of the vehicle in the target environment based on the ambient temperature and / or the dust information.

[0075] When the onboard controller outputs the first filter maintenance message, it indicates that the filter is damaged or nearing damage. If the vehicle continues to travel at a high speed, the airflow velocity in the intake duct and the force acting on the filter will be high to meet the high-speed air demand, further exacerbating the filter damage. Therefore, to prevent further deterioration of the filter damage, the vehicle's speed should be limited in the target environment.

[0076] Specifically, the vehicle's speed threshold in the target environment can be determined based on ambient temperature, dust information, or both. For example, since higher ambient temperature degrades the sealant's adhesiveness, the speed threshold should decrease as ambient temperature increases. Alternatively, since a greater deviation from the preset dust information indicates poorer filter effectiveness and, by extension, a larger area of ​​filter damage, the speed threshold should decrease as the deviation from the preset dust information increases. Alternatively, the speed threshold can be determined by combining the weighted effects of ambient temperature and dust information on the speed threshold.

[0077] Step S105: controlling the vehicle's travel speed to be less than the speed threshold to reduce the load on the engine.

[0078] After the speed threshold is determined, a control signal carrying the speed threshold is sent to an engine controller, and the engine speed is controlled by the engine controller to be below a speed threshold corresponding to the speed threshold, so that the vehicle speed is maintained at a state less than the speed threshold, thereby reducing the load of the vehicle engine. For example, based on the environmental temperature and / or the dust information, it is determined that the speed threshold is 30 km / h, and the vehicle speed is controlled to be below 30 km / h until the driver completes the filter replacement or the vehicle drives out of the target environment.

[0079] Optionally, as Figure 5 As shown in the flowchart of the filter maintenance prompting method based on the driving mileage, when the vehicle is in the target environment, the method comprises:

[0080] In step S201, the driving mileage of the vehicle in the target environment is obtained.

[0081] Since the target environment is an environment with high dust or sand content in the air, such as sand weather or desert and gobi, the filter still needs to be replaced or cleaned after the vehicle drives for a long distance, even if the filter is not damaged. Therefore, when the vehicle is in the target environment, it is necessary to determine whether maintenance measures need to be taken for the filter according to the driving mileage of the vehicle in the target environment, so as to comprehensively and comprehensively consider the factors affecting the filter maintenance, and maximize the driving safety of the vehicle in the target environment.

[0082] When the driving mileage is less than the mileage threshold, go to step S202; when the driving mileage is greater than or equal to the mileage threshold, go to step S203.

[0083] In step S202, when the driving mileage is less than the mileage threshold, periodically perform the steps of obtaining the environmental temperature around the air filter of the vehicle and the dust information on the air outlet side of the air filter, the dust information including particle diameter and / or dust concentration; based on the environmental temperature and / or the dust information, output the first filter maintenance prompting information.

[0084] Because when the driving mileage of the vehicle is less than the mileage threshold, the filter is still in the service life of the intact condition, so when the driving mileage is less than the mileage threshold, the only case that the filter needs to be maintained is that the filter is damaged. That is, when the driving mileage is less than the mileage threshold, only the filter damage needs to be monitored. The mileage threshold can be determined based on the remaining service life of the filter. The longer the remaining service life, the larger the mileage threshold; the shorter the remaining service life, the smaller the mileage threshold.

[0085] Based on this, when the vehicle mileage is less than the mileage threshold, the steps of "obtaining the ambient temperature around the air filter of the vehicle and the dust information of the air outlet side of the air filter, the dust information including particle diameter and / or dust concentration; and outputting first filter maintenance prompt information based on the ambient temperature and / or the dust information" can be periodically performed, that is, steps S102 and S103 in the embodiment provided by the first aspect of the application.

[0086] At this time, considering that the filter element has appeared or is about to appear damage, therefore, the first filter maintenance prompt information can be a prompt information reminding the driver to replace the filter element.

[0087] In an optional embodiment, the above-mentioned period can be determined as 1 hour, that is, the steps of "obtaining the ambient temperature around the air filter of the vehicle and the dust information of the air outlet side of the air filter, the dust information including particle diameter and / or dust concentration; and outputting first filter maintenance prompt information based on the ambient temperature and / or the dust information" are performed once every 1 hour.

[0088] Step S203, when the mileage is greater than or equal to the mileage threshold, directly outputting second filter maintenance prompt information.

[0089] When the mileage is greater than or equal to the mileage threshold, since the vehicle has traveled a long distance in a harsh environment, the filter element is close to the service life, therefore, whether the filter element is damaged or not, maintenance measures should be taken. Based on this, when the mileage is greater than or equal to the mileage threshold, the second filter maintenance prompt information should be directly outputted.

[0090] At this time, considering that the filter element has not appeared damage, therefore, the second maintenance prompt information can be a prompt information prompting the driver to replace or clean the filter element. Specifically, the second filter maintenance prompt information can be delivered to the driver in the form of voice through the voice assistant on the vehicle, or displayed in the form of image text on the central control screen or instrument screen of the vehicle.

[0091] Optionally, as Figure 6 As shown in the step diagram of a filter element maintenance prompt method based on the filter element brand, the step S103 of outputting the first filter maintenance prompt information based on the ambient temperature and / or the dust information includes:

[0092] Step S1031, obtaining the brand to which the filter element belongs.

[0093] The brand to which the filter element belongs actually represents the manufacturer of the filter element. The brand to which the filter element belongs can indicate the production standard and quality of the filter element. The production standard and quality of the filter element have a great influence on the conditions leading to the damage of the filter element. Generally, a larger-scale manufacturer has a more strict control over the production process and higher standards for manufacturing raw materials, so the filter element produced by the manufacturer has better quality. Therefore, the quality of the filter element can be determined based on the brand to which the filter element belongs, and the conditions leading to the damage of the filter element can be determined based on the quality of the filter element.

[0094] In step S1032, a temperature threshold of the ambient temperature is determined based on the brand.

[0095] In actual use, there is a temperature limit value. When the ambient temperature is below the temperature limit value, the probability of damage of the filter element is relatively small, and when the ambient temperature is above the temperature limit value, the probability of damage of the filter element greatly increases. Therefore, the temperature limit value at which the filter element is prone to damage can be determined as the temperature threshold of the ambient temperature.

[0096] In step S1033, when the ambient temperature is greater than the temperature threshold and / or the dust information does not satisfy a preset condition, the first filter element maintenance prompt information is output, where the preset condition is that the particle diameter is greater than a diameter threshold and / or the dust concentration is greater than a concentration threshold.

[0097] After the temperature threshold of the ambient temperature is determined, the first filter element maintenance prompt information can be output when the ambient temperature is greater than the temperature threshold, or when the dust information does not satisfy the preset condition, or when the ambient temperature is greater than the temperature threshold and the dust information does not satisfy the preset condition.

[0098] The temperature threshold of the ambient temperature is determined based on the brand of the filter element. Different opportunities for outputting the first filter element maintenance prompt information can be determined based on the conditions of different filter elements, thereby realizing a flexible prompt strategy of specific circumstances and improving the refinement degree of the filter element maintenance prompt.

[0099] Optionally, in step S1031, determining the temperature threshold of the ambient temperature based on the brand includes: scanning a brand identifier configured on the filter element to obtain the brand to which the filter element belongs; and the brand identifier includes at least one of a bar code and a two-dimensional code.

[0100] The brand identifier composed of a bar code or a two-dimensional code is arranged on the filter element. The brand to which the filter element belongs can be directly obtained by scanning the brand identifier by a camera, thereby reducing the step of manually inputting the brand of the filter element and realizing the automation of obtaining the brand of the filter element. Meanwhile, the influence of human factors is reduced in the process of obtaining the brand of the filter element, and the accuracy of obtaining the brand of the filter element is improved.

[0101] Optionally, the brand of the filter element includes a certified brand and a non-certified brand. The determination of the temperature threshold of the ambient temperature based on the brand in step S1032 includes two cases, as follows:

[0102] A certified brand refers to a manufacturer that has been certified as a qualified supplier by the vehicle's OEM; a non-certified brand refers to a manufacturer that has not been certified as a qualified supplier by the vehicle's OEM. Generally speaking, certified brand filter elements are manufactured to more stringent standards and using higher-quality raw materials, resulting in better heat resistance than non-certified brand filter elements. For example, considering the melting points of sealants used in various filter elements on the market, the melting point of sealants used in certified brand filter elements is typically 120°C, while the melting point of sealants used in non-certified brands is typically 80°C. Therefore, sealants used by certified brands are superior to those used by non-certified brands.

[0103] In case 1, when the brand of the filter element is a certified brand, the temperature threshold is determined to be the first temperature threshold.

[0104] Case 2: When the brand of the filter element is a non-certified brand, the temperature threshold is determined to be the second temperature threshold; wherein the first temperature threshold is greater than the second temperature threshold.

[0105] In the above cases 1 and 2, when the brand of the filter element is a certified brand, the temperature threshold is the first temperature threshold, and when the brand of the filter element is a non-certified brand, the temperature threshold is the second temperature threshold. Since the filter element of a certified brand has better heat resistance, the first temperature threshold should be greater than the second temperature threshold. For example, since the sealant of the filter element of a certified brand begins to fail at 120°C and the filter element begins to be damaged, the sealant of the filter element of a non-certified brand begins to fail at 80°C and the filter element begins to be damaged, the heat resistance of the filter element of a certified brand is better than that of the filter element of a non-certified brand. At this time, 120°C can be determined as the first temperature threshold, and 80°C can be determined as the second temperature threshold. Obviously, 120°C is greater than 80°C, so the first temperature threshold is greater than the second temperature threshold.

[0106] This embodiment adopts different filter element maintenance reminder strategies for filter elements of certified brands and filter elements of non-certified brands, thereby achieving flexible reminders based on specific analysis of specific situations and improving the refinement of filter element maintenance reminders.

[0107] Alternatively, as Figure 7 As shown in the step diagram of a method for outputting first filter element maintenance prompt information, step S103 of outputting first filter element maintenance prompt information includes:

[0108] Step S1034: Obtain the pressure difference between the air inlet side of the filter element and the air outlet side of the filter element.

[0109] The air inlet side of the filter element is the side of the filter element close to the air inlet pipe, and the air outlet side of the filter element is the side of the filter element close to the air outlet pipe. In the process of flowing from the air inlet side of the filter element to the air outlet side of the filter element, dust and sand and other impurities contained in the air are blocked by the filter element and remain on the air inlet side of the filter element, and clean air flows out from the air outlet side of the filter element. At this time, the surface pressure of the air inlet side of the filter element is greater than the surface pressure of the air outlet side of the filter element due to the action of the flowing sand and air, thereby generating a pressure difference between the air inlet side and the air outlet side of the filter element.

[0110] In the normal use process, the pressure difference between the air inlet side and the air outlet side of the filter element will increase with the increase of the use time. If the filter element suddenly breaks, a large amount of air on the air inlet side will flow to the air outlet side from the broken part, thereby reducing the surface pressure of the air inlet side and reducing the pressure difference between the air inlet side and the air outlet side. Therefore, the pressure difference between the air inlet side and the air outlet side can be considered as a factor when outputting the first filter element maintenance prompt information.

[0111] Step S1035, determining the risk level of the filter element based on the air pressure difference.

[0112] Since the larger the broken area of the filter element is, the more air flows to the air outlet side from the broken part, the smaller the surface pressure on the air inlet side of the filter element is, and the smaller the pressure difference between the air inlet side and the air outlet side of the filter element is, the broken area of the filter element can be determined by the pressure difference, thereby different risk levels are divided based on different broken areas. For example, when the broken area of the filter element is less than a first area, the risk level is determined as a low risk; when the broken area of the filter element is greater than or equal to the first area and less than a second area, the risk level is determined as a medium risk; and when the broken area of the filter element is greater than or equal to the second area, the risk level is determined as a high risk, wherein the first area is less than the second area.

[0113] Step S1036, outputting the first filter element maintenance prompt information corresponding to the risk level.

[0114] After determining the risk level of the filter element, the first filter element maintenance prompt information corresponding to the risk level is outputted. For example, when the risk level is a low risk level, the first filter element maintenance prompt information of voice or image text such as "the filter element is broken, the current broken area is less than the first area, the risk level is a low risk level, please replace the filter element in time" can be outputted. When the risk level is a medium risk level, the first filter element maintenance prompt information of voice or image text such as "the filter element is broken, the current broken area is greater than or equal to the first area and less than the second area, the risk level is a medium risk level, please replace the filter element in time" can be outputted. When the risk level is a high risk level, the first filter element maintenance prompt information of voice or image text such as "the filter element is broken, the current broken area is greater than or equal to the second area, the risk level is a high risk level, please replace the filter element in time" can be outputted.

[0115] Based on the pressure difference between the intake side and the exhaust side, the risk level of the filter element is divided, and the first filter element maintenance prompt information corresponding to the risk level is output, which can improve the driver's understanding of the current state of the filter element, and then facilitate the driver to take flexible maintenance measures based on the current state of the filter element.

[0116] The third aspect of the present application proposes an embodiment, such as Figure 8 A flowchart of a filter element maintenance prompt method is shown, and the method comprises:

[0117] Based on the positioning information of the vehicle, it is determined whether the vehicle is in a target environment; when the vehicle is in the target environment, the driving mileage of the vehicle in the target environment is obtained.

[0118] When the driving mileage is less than the mileage threshold, periodically perform the steps of obtaining the ambient temperature around the air filter of the vehicle and the dust information of the exhaust side of the air filter; obtaining the brand to which the filter element belongs; when the brand of the filter element is an authenticated brand, determining that the temperature threshold is a first temperature threshold; when the brand of the filter element is a non-authenticated brand, determining that the temperature threshold is a second temperature threshold; wherein the first temperature threshold is greater than the second temperature threshold; when the ambient temperature is greater than the temperature threshold and / or the dust information does not meet the preset condition, output the first filter element maintenance prompt information, wherein the preset condition is that the particle diameter is greater than the diameter threshold and / or the dust concentration is greater than the concentration threshold; and controlling the driving speed of the vehicle.

[0119] The step of obtaining the brand to which the filter element belongs comprises: scanning the brand identifier configured for the filter element to obtain the brand to which the filter element belongs; wherein the brand identifier comprises at least one of a bar code and a two-dimensional code. The step of outputting the first filter element maintenance prompt information comprises: obtaining the pressure difference between the intake side of the filter element and the exhaust side of the filter element; based on the pressure difference, determining the risk level of the filter element; and outputting the first filter element maintenance prompt information corresponding to the risk level. The step of controlling the driving speed of the vehicle comprises: based on the ambient temperature and / or the dust information, determining a speed threshold of the vehicle in the target environment; and controlling the driving speed of the vehicle to be less than the speed threshold to reduce the load of the engine.

[0120] When the driving mileage is greater than or equal to the mileage threshold, directly output the second filter element maintenance prompt information.

[0121] In addition, reference is made to Figure 9 A structural diagram of a vehicle filter element maintenance prompt device is shown, and Figure 10 A case list of a filter element maintenance prompt method is shown, and the filter element maintenance prompt system described in the present application is explained by taking a specific application scenario as an example:

[0122] As Figure 9As shown, a dust sensor is installed on the upper shell of the air filter, and a temperature sensor is installed on the lower shell, which are respectively used to collect the ambient temperature of the air filter and the dust information of the air outlet side of the air filter when the vehicle is in the target environment.

[0123] After collecting the ambient temperature and dust information, they are sent to the vehicle controller, and the vehicle controller performs filter maintenance prompting based on the two.

[0124] Reference Figure 10 The two filter maintenance prompting methods shown include method one, which outputs first filter maintenance prompting information based on ambient temperature and dust information through a voice assistant; method two, which outputs first filter maintenance prompting information or second filter maintenance prompting information based on ambient temperature, dust information, and driving mileage through a voice assistant.

[0125] If filter maintenance prompting is performed through method one, in the case of a filter brand being a certified brand, first filter maintenance prompting information is output when the ambient temperature is greater than 120℃ and the particle diameter is greater than 20um; in the case of a filter brand being a non-certified brand, first filter maintenance prompting information is output when the ambient temperature is greater than 80℃ and the particle diameter is greater than 20um.

[0126] If filter maintenance prompting is performed through method two, in the case of driving mileage being less than a mileage threshold, in the case of a filter brand being a certified brand, first filter maintenance prompting information is output when the ambient temperature is greater than 120℃ and the particle diameter is greater than 20um; in the case of a filter brand being a non-certified brand, first filter maintenance prompting information is output when the ambient temperature is greater than 80℃ and the particle diameter is greater than 20um. In the case of driving mileage being greater than or equal to the mileage threshold, second filter maintenance prompting information is output.

[0127] The fourth aspect of the present application proposes an embodiment, as Figure 11 As shown in a structural diagram of a filter maintenance prompting system, the system includes:

[0128] A judgment module for determining whether the vehicle is in a target environment based on the positioning information of the vehicle;

[0129] An acquisition module for acquiring the ambient temperature around the air filter of the vehicle and the dust information of the air outlet side of the air filter when the vehicle is in the target environment, the dust information including particle diameter and / or dust concentration;

[0130] A first execution module for outputting first filter maintenance prompting information based on the ambient temperature and / or the dust information.

[0131] Optionally, the system further comprises a speed adjusting module configured to determine a speed threshold of the vehicle in the target environment based on the ambient temperature and / or the dust information; and control a driving speed of the vehicle to be less than the speed threshold to reduce a load of the engine.

[0132] Optionally, the system further comprises a second execution module configured to obtain a driving mileage of the vehicle in the target environment; periodically execute the steps of obtaining the ambient temperature around the air filter of the vehicle and the dust information of the air outlet side of the air filter when the driving mileage is less than a mileage threshold, the dust information comprising a particle diameter and / or a dust concentration; output the first filter maintenance prompt information based on the ambient temperature and / or the dust information; and directly output a second filter maintenance prompt information when the driving mileage is greater than or equal to the mileage threshold.

[0133] Optionally, the first execution module is further configured to obtain a brand to which the filter belongs; determine a temperature threshold of the ambient temperature based on the brand; and output the first filter maintenance prompt information when the ambient temperature is greater than the temperature threshold and / or the dust information does not satisfy a preset condition, wherein the preset condition is that the particle diameter is greater than a diameter threshold and / or the dust concentration is greater than a concentration threshold.

[0134] Optionally, the first execution module is further configured to scan a brand identification configured to the filter to obtain the brand to which the filter belongs; and wherein the brand identification comprises at least one of a bar code and a two-dimensional code.

[0135] Optionally, the first execution module is further configured to determine the temperature threshold to be a first temperature threshold when the brand of the filter is an authenticated brand; and determine the temperature threshold to be a second temperature threshold when the brand of the filter is a non-authenticated brand; and wherein the first temperature threshold is greater than the second temperature threshold.

[0136] Optionally, the first execution module is further configured to obtain a pressure difference between an air inlet side of the filter and an air outlet side of the filter; determine a risk level of the filter based on the pressure difference; and output the first filter maintenance prompt information corresponding to the risk level.

[0137] Embodiments of the present application further provide a computer readable storage medium having computer programs / instructions stored thereon, which, when executed by a processor, implement a filter maintenance prompting method as disclosed in embodiments of the present application.

[0138] The application also provides a vehicle comprising the filter element maintenance prompting system or the control module.

[0139] The application determines whether the vehicle is in the target environment according to the positioning information of the vehicle. When the vehicle is in the target environment, the first filter element maintenance prompting information is output based on the environment temperature of the air filter of the vehicle and the particle diameter and / or dust concentration on the air outlet side of the air filter. When the filter element is working, if it is out of the suitable working temperature range, the filtering capacity of the filter element will be greatly reduced. Meanwhile, if the filtering capacity of the filter element is reduced, the particle diameter and the dust concentration on the air outlet side of the air filter will be greatly increased. Therefore, whether the filter element is in the normal working state can be determined according to the environment temperature and the dust information, and the driver can timely receive the first filter element maintenance prompting information when it is determined that the filter element is in the abnormal working state, so that the filter element can be timely replaced.

[0140] Each of the embodiments in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments. The same or similar parts of each embodiment can be referred to each other.

[0141] The embodiments of the application are described with reference to the flowcharts and / or block diagrams of the methods, systems, electronic devices and computer program products according to the embodiments of the application. It should be understood that each flow and / or block in the flowcharts and / or block diagrams, and the combination of the flows and / or blocks in the flowcharts and / or block diagrams can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing terminal equipment to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal equipment produce a device for implementing the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1 The functions specified in one flow or multiple flows and / or blocks

[0142] These computer program instructions can also be stored in a computer readable memory which can guide the computer or other programmable data processing terminal equipment to work in a specific way, so that the instructions stored in the computer readable memory produce a product comprising instruction devices, which implement the functions specified in the flowcharts and / or block diagrams. Figure 1 The functions specified in one flow or multiple flows and / or blocks Figure 1 The functions specified in one flow or multiple flows and / or blocks

[0143] These computer program instructions can also be loaded into a computer or other programmable data processing terminal device, so that a series of operational steps are performed on the computer or other programmable terminal device to generate a computer-implemented process, thus the instructions executed on the computer or other programmable terminal device provide a process for implementing the functions specified in the flowchart Figure 1 one or more flows and / or blocks Figure 1 one or more blocks or steps of the functions specified in the flowchart

[0144] Although the preferred embodiments of the present application have been described, those skilled in the art who understand the basic inventive concept after getting to know the present application can make additional changes and modifications to the embodiments. Therefore, the appended claims are intended to cover the preferred embodiments and all changes and modifications falling within the scope of the embodiments of the present application.

[0145] Finally, it should also be noted that, in this document, the relationship terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variants thereof are intended to cover non-exclusive inclusion, so that the process, method, article or terminal device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or terminal device. Without more limitations, the element defined by the statement "including a" does not exclude the presence of another identical element in the process, method, article or terminal device including the element.

[0146] The above provides a filter maintenance prompting method, system, storage medium and vehicle, and the principle and implementation manner of the present application are described by applying specific examples. The above embodiment description is only used to help understand the method and its core idea of the present application; meanwhile, for those skilled in the art, according to the idea of the present application, the specific implementation manner and application range can be changed, and the content of the specification should not be understood as a limitation of the present application.

Claims

1. A filter element maintenance reminder method, characterized in that: The method comprises: Determining whether the vehicle is in a target environment based on the vehicle positioning information; When the vehicle is in the target environment, obtaining an ambient temperature around an air filter of the vehicle and dust information on an outlet side of the air filter, the dust information including particle diameter and / or dust concentration; Based on the ambient temperature and / or the dust information, first filter element maintenance prompt information is output.

2. The filter element maintenance reminder method according to claim 1, characterized in that: After outputting the first filter element maintenance prompt information, the method further includes: determining a speed threshold of the vehicle in the target environment based on the ambient temperature and / or the dust information; The vehicle's travel speed is controlled to be less than the speed threshold to reduce the load on the engine.

3. The filter element maintenance reminder method according to claim 1, characterized in that: When the vehicle is in the target environment, the method further includes: Obtaining the mileage of the vehicle in the target environment; When the mileage is less than a mileage threshold, periodically performing the steps of obtaining an ambient temperature around the air filter of the vehicle and dust information on an outlet side of the air filter, the dust information including particle diameter and / or dust concentration; and outputting a first filter element maintenance reminder based on the ambient temperature and / or the dust information; When the mileage is greater than or equal to the mileage threshold, the second filter element maintenance reminder information is directly output.

4. The filter element maintenance reminder method according to claim 1, characterized in that: The outputting of the first filter element maintenance prompt information based on the ambient temperature and / or the dust information includes: Obtain the brand of the filter element; determining a temperature threshold of the ambient temperature based on the brand; When the ambient temperature is greater than the temperature threshold, and / or the dust information does not meet the preset conditions, the first filter element maintenance prompt information is output, wherein the preset conditions are that the particle diameter is greater than the diameter threshold and / or the dust concentration is greater than the concentration threshold.

5. The filter element maintenance reminder method according to claim 4, characterized in that: The obtaining of the brand of the filter element includes: Scan the brand logo configured for the filter element to obtain the brand of the filter element; The brand logo includes at least one of a barcode and a QR code.

6. The filter element maintenance reminder method according to claim 4, characterized in that: The brand of the filter element includes a certified brand and a non-certified brand. Determining the temperature threshold of the ambient temperature based on the brand includes: When the brand of the filter element is a certified brand, determining that the temperature threshold is a first temperature threshold; When the brand of the filter element is a non-certified brand, determining the temperature threshold to be a second temperature threshold; The first temperature threshold is greater than the second temperature threshold.

7. The filter element maintenance reminder method according to claim 1, characterized in that: The outputting of the first filter element maintenance prompt information includes: Obtaining a pressure difference between an air inlet side of the filter element and an air outlet side of the filter element; determining a risk level of the filter element based on the pressure difference; Outputting the first filter element maintenance prompt information corresponding to the risk level.

8. A filter element maintenance reminder system, characterized in that: include: A judgment module, configured to determine whether the vehicle is in a target environment based on the vehicle's positioning information; an acquisition module, configured to acquire, when the vehicle is in the target environment, an ambient temperature around the air filter of the vehicle and dust information on an outlet side of the air filter, the dust information including particle diameter and / or dust concentration; The first execution module is used to output first filter element maintenance prompt information based on the ambient temperature and / or the dust information.

9. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the filter element maintenance reminder method described in any one of claims 1 to 7 are implemented.

10. A vehicle, characterized in that: It includes the filter element maintenance reminder system described in claim 8, or includes a control module, and the control module is used to implement the steps of the filter element maintenance reminder method described in any one of claims 1-7.

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