A control method and device for prompting air filter maintenance

Abstract

The present application relates to the technical field of engine air filter, and discloses a control method and device for prompting air filter maintenance, comprising the following steps: starting a vehicle and obtaining the current mileage of the vehicle, and judging the size of the current mileage; when the current mileage reaches the mileage range in which the air filter needs to be maintained, obtaining the maintenance prompt of the air filter; comparing the current pressure with the previous pressure and the current pressure with the original pressure after obtaining the maintenance prompt, and obtaining a comparison result; according to the comparison result, the air filter is purged or replaced, the maintenance of the air filter is completed, and the current mileage of the vehicle is continuously obtained. The present application can visualize the maintenance mileage of the air filter of the vehicle, prompt the maintenance and suggest the maintenance mode, avoid the operation of the vehicle in the case of large dust, and cause damage to the engine; at the same time, the maintenance cost of the vehicle is saved, the number and mode of air filter maintenance are conveniently controlled, and the problems of wrong mileage, mixed maintenance mode or forgetting maintenance during the maintenance of the filter core are solved.

Description

Technical Field

[0001] This invention relates to the field of engine air filter technology, and in particular to a control method and device for prompting air filter maintenance. Background Technology

[0002] Currently, the maintenance requirements for air filters in traditional gasoline vehicles are: purging the filter element every 3000-5000 km, and replacing it after 3-5 purgings. The current practice of manually recording maintenance times and methods is prone to errors, such as misrecording mileage, confusing maintenance methods, or forgetting to perform maintenance. This easily leads to situations where purging is needed but the filter element is replaced, or vice versa, resulting in wasted resources and improper maintenance. Furthermore, prolonged neglect or improper filter maintenance can have a greater impact on the engine. Summary of the Invention

[0003] To address the problems of untimely or improper filter element maintenance in existing technologies, this invention provides a control method and device for prompting air filter maintenance, which solves the problems of incorrect mileage recording, confusion of maintenance methods, or forgetting to maintain the filter element.

[0004] The technical content of this invention is as follows:

[0005] On the one hand, the present invention provides a control method for prompting air filter maintenance, comprising the following steps:

[0006] Start the vehicle and obtain the current mileage, then determine the magnitude of the current mileage;

[0007] When the current mileage reaches the range where the air filter needs maintenance, a maintenance reminder for the air filter is obtained;

[0008] After obtaining the maintenance reminder, compare the current pressure with the previous pressure and the current pressure with the original pressure to obtain the comparison results;

[0009] Based on the comparison results, purge or replace the air filter to complete the air filter maintenance, and then return to obtain the vehicle's current mileage.

[0010] Furthermore, determining the current mileage includes:

[0011] Determine if the current mileage is greater than 3000km;

[0012] And determine whether the current mileage is less than or equal to 4000km.

[0013] Further, the determination of whether the current mileage is greater than 3000km and whether the current mileage is less than or equal to 4000km includes:

[0014] If the current mileage is less than 3000km, continue to obtain the vehicle's current mileage;

[0015] When the current mileage is greater than 3000km and less than or equal to 4000km, a prompt will be generated indicating that the air filter needs maintenance.

[0016] When the current mileage is greater than 3000km and greater than 4000km, a prompt indicating that the air filter must be maintained is obtained, and the current pressure is compared with the previous pressure and the current pressure with the original pressure.

[0017] Furthermore, the method of obtaining a maintenance reminder for the air filter includes:

[0018] Determine if the air filter needs maintenance.

[0019] Furthermore, the determination of whether the air filter needs maintenance includes:

[0020] If the air filter needs maintenance, compare the current pressure with the previous pressure and the current pressure with the original pressure.

[0021] If the air filter has not been serviced, continue to check if the current mileage is less than or equal to 4000km.

[0022] Furthermore, when performing air filter purging or replacement based on the comparison results to complete air filter maintenance, the process includes:

[0023] If the current pressure is less than the previous pressure and the current pressure is greater than the original pressure, then the number of times the air filter has been purged is determined.

[0024] If the current pressure is less than the previous pressure and not greater than the original pressure, then the air filter element should be replaced.

[0025] Furthermore, when the current pressure is less than the previous pressure and greater than the original pressure, determining the number of times the air filter has been purged includes:

[0026] If the number of air filter purging cycles is greater than or equal to 3, it indicates that the air filter element should be replaced.

[0027] If the number of air filter purging cycles is less than 3, an air filter purging prompt will be displayed, and the air filter purging will be completed and the purging cycle will be updated.

[0028] Furthermore, the step of prompting the air filter to replace the filter element when the number of air filter purging cycles is greater than or equal to 3 includes:

[0029] Reassess the number of times the air filter has been purged;

[0030] If the air filter is purged 5 times or more, the filter element should be replaced.

[0031] If the number of air filter purging cycles is less than 5, then the air filter purging is completed and the purging cycle is updated.

[0032] On the other hand, the present invention also provides a control device for prompting air filter maintenance, which implements the control method for prompting air filter maintenance as described in any of the above claims, including:

[0033] The first acquisition unit is used to acquire the current mileage of the vehicle;

[0034] The first judgment unit is used to determine whether the current mileage has reached the range where the air filter needs maintenance.

[0035] The second acquisition unit is used to acquire maintenance reminders for the air filter.

[0036] The second judgment unit is used to determine whether the current pressure is less than the previous pressure and the current pressure is greater than the original pressure.

[0037] The third judgment unit is used to determine the number of air filter purging cycles;

[0038] The first control unit is used to control the air filter to purge and update the purge frequency;

[0039] The second control unit is used to control the replacement of the air filter.

[0040] Furthermore, the control device for prompting air filter maintenance also includes:

[0041] The circulation unit is used to recalculate the mileage and enter the first acquisition unit after the first control unit or the second control unit has been purged or replaced.

[0042] The beneficial effects of the present invention include at least the following: According to the control method and device of the present invention, the maintenance mileage of vehicle air filter can be visualized, maintenance reminders and maintenance methods can be suggested, avoiding vehicle operation in dusty conditions that could damage the engine; at the same time, it saves vehicle maintenance costs, makes it easier to control the frequency and method of air filter maintenance, and solves the problems of misremembering mileage, confusing maintenance methods, or forgetting maintenance when maintaining filter elements. Attached Figure Description

[0043] Figure 1 This is a logic block diagram of a control method for prompting air filter maintenance provided in Embodiment 1 of the present invention.

[0044] Figure 2 This is a schematic diagram of an implementation block for a control method for prompting air filter maintenance provided in Embodiment 1 of the present invention.

[0045] Figure 3 This is a logic block diagram of a control device for prompting air filter maintenance provided in Embodiment 2 of the present invention.

[0046] Figure 4 This is a schematic diagram of a control system for prompting air filter maintenance, provided in Embodiment 3 of the present invention.

[0047] in: Figure 4 The symbols in the text are represented as follows:

[0048] 1-Air filter;

[0049] 2-Gas passageway;

[0050] 3-Pressure sensor;

[0051] 4-Air filter outlet;

[0052] 5-Controller;

[0053] 6-Dashboard. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0055] Example 1

[0056] Combination Figure 1-2 As shown in this embodiment, the present invention provides a control method for prompting air filter maintenance, comprising the following steps:

[0057] Start the vehicle and obtain the current mileage 'a', then determine the value of 'a'.

[0058] When the current mileage 'a' reaches the mileage range where the air filter needs maintenance, a maintenance reminder for the air filter is obtained.

[0059] After obtaining the maintenance reminder, compare the current pressure with the previous pressure and the current pressure with the original pressure to obtain the comparison results;

[0060] Based on the comparison results, purge or replace the air filter to complete the air filter maintenance, and then return to obtain the vehicle's current mileage.

[0061] Furthermore, determining the magnitude of the current mileage 'a' includes:

[0062] Determine if the current mileage 'a' is greater than 3000km;

[0063] And determine whether the current mileage a is less than or equal to 4000km.

[0064] Further, the step of determining whether the current mileage a is greater than 3000km and whether the current mileage a is less than or equal to 4000km includes:

[0065] If the current mileage a is less than 3000km, continue to obtain the vehicle's current mileage a;

[0066] When the current mileage a is greater than 3000km and the current mileage a is less than or equal to 4000km, a prompt will be obtained indicating that the air filter needs maintenance.

[0067] When the current mileage a is greater than 3000km and the current mileage a is greater than 4000km, a prompt is received that the air filter must be maintained, and the current pressure is compared with the previous pressure and the current pressure with the original pressure.

[0068] Furthermore, the method of obtaining a maintenance reminder for the air filter includes:

[0069] Determine if the air filter needs maintenance.

[0070] Furthermore, the determination of whether the air filter needs maintenance includes:

[0071] If the air filter needs maintenance, compare the current pressure with the previous pressure and the current pressure with the original pressure.

[0072] If the air filter has not undergone maintenance, continue to check if the current mileage 'a' is less than or equal to 4000km.

[0073] Furthermore, when performing air filter purging or replacement based on the comparison results to complete air filter maintenance, the process includes:

[0074] If the current pressure is less than the previous pressure and the current pressure is greater than the original pressure, then the number of times the air filter has been purged is determined.

[0075] If the current pressure is less than the previous pressure and not greater than the original pressure, then the air filter element should be replaced.

[0076] Furthermore, when the current pressure is less than the previous pressure and greater than the original pressure, determining the number of times the air filter has been purged (c) includes:

[0077] If the number of air filter purging cycles (c) is greater than or equal to 3, it indicates that the air filter element should be replaced.

[0078] If the number of air filter purgings c is less than 3, an air filter purging prompt will be given, and the air filter purging will be completed and the purging count will be updated. The updated purging count will be c+1.

[0079] Furthermore, the step of prompting the air filter to replace the filter element when the number of air filter purging cycles c is greater than or equal to 3 includes:

[0080] Re-determine the number of times the air filter has been purged, c.

[0081] If the number of air filter purging cycles (c) is greater than or equal to 5, the air filter element should be replaced.

[0082] If the number of air filter purgings is less than 5, the air filter purging is completed and the purging count is updated to c+1.

[0083] The air filter maintenance reminder is obtained by: after the pressure sensor detects that maintenance has been completed, the controller reads the vehicle's mileage and records the current mileage. When the vehicle has driven 3000km since the maintenance was detected, the user is reminded to perform maintenance. The urgency of maintenance is classified: maintenance is required when the current mileage is 3000-4000km, and maintenance is mandatory when the current mileage is 4000-5000km.

[0084] In this embodiment, the original pressure is obtained by: during vehicle development, conducting experiments to obtain the vehicle's idling speed, detecting it using a pressure sensor, and then recording the obtained original pressure in the controller. In this embodiment, the original pressure can be recorded as a range value.

[0085] As vehicles are used over time, dust accumulates on the filter element, gradually increasing its flow resistance and causing the pressure sensor to detect higher pressure values. Each time the vehicle starts, the controller identifies and records the pressure at the pressure sensor when the idle speed is stable. When the detected current pressure is lower than the previous startup negative pressure but higher than the original pressure, the air filter's maintenance method is determined to be purging. After each purging, the flow resistance increases compared to before purging, but it will increase by 10% to 20% compared to a new filter element. When the detected current pressure is greater than or equal to the original pressure, the air filter's maintenance method is determined to be filter replacement.

[0086] The vehicle's mileage increments from 0 km, and an initial maintenance reminder is given when it reaches 3000-5000 km. Since the pressure value on the pressure sensor increases with filter resistance, a sudden decrease in pressure at the sensor indicates that maintenance has been performed, and the mileage is reset. When the maintenance method is purging, the pressure value at the pressure sensor will decrease, but it will not return to its original value; the pressure value will only decrease to its initial value when the filter is replaced.

[0087] Based on the principle that filter elements need to be replaced after 3-5 purging cycles, a specific reminder method is specified. For filter elements that have not reached 3 purging cycles, when the required maintenance mileage is reached, the instrument panel will prompt the user that the maintenance method is purging. After recognizing 3 consecutive purging maintenance cycles, the instrument panel will prompt the user that the filter element needs to be replaced. At this time, the user can choose to replace the filter element or perform another purging maintenance, until the number of purging cycles reaches 5. When the instrument panel prompts the user to replace the filter element again, the user must perform the replacement maintenance.

[0088] The control method in this embodiment visualizes the maintenance mileage of the vehicle's air filter, prompts when maintenance is needed, and suggests possible maintenance methods. This can prevent the vehicle from operating in dusty conditions, which could damage the engine and save the user's maintenance costs. It also allows the user to control the maintenance of the air filter.

[0089] Example 2

[0090] Combination Figure 3 Compared with Embodiment 1, this embodiment provides a control device for prompting air filter maintenance, implementing the control method for prompting air filter maintenance as described in Embodiment 1, including:

[0091] The first acquisition unit is used to acquire the current mileage of the vehicle;

[0092] The first judgment unit is used to determine whether the current mileage has reached the range where the air filter needs maintenance.

[0093] The second acquisition unit is used to acquire maintenance reminders for the air filter.

[0094] The second judgment unit is used to determine whether the current pressure is less than the previous pressure and the current pressure is greater than the original pressure.

[0095] The third judgment unit is used to determine the number of air filter purging cycles;

[0096] The first control unit is used to control the air filter to purge and update the purge frequency;

[0097] The second control unit is used to control the replacement of the air filter.

[0098] Furthermore, the control device for prompting air filter maintenance also includes:

[0099] The circulation unit is used to recalculate the mileage and enter the first acquisition unit after the first control unit or the second control unit has been purged or replaced.

[0100] Example 3

[0101] Combination Figure 4As shown in Embodiments 1 and 2, this embodiment provides a control system for prompting air filter maintenance, including an air filter 1, a pressure sensor 3, a controller 5, and an instrument panel 6. The air filter 1, pressure sensor 3, controller 5, and instrument panel 6 are connected in sequence. The air filter 1 is connected to the pressure sensor 3 through an air passage 2, and an air filter outlet 4 is provided on the air filter 1.

[0102] The pressure sensor senses the pressure of the flowing gas inside the air filter through the air passage. The pressure sensor transmits the sensed pressure to the controller via a signal. The controller identifies and records the signal, reads the total vehicle mileage, processes the data, and controls the instrument panel to display that the air filter needs maintenance and suggests maintenance methods such as purging or replacing the filter element.

[0103] When the vehicle is started, the controller reads the intake air pressure at idle speed each time it is turned on, which is the previous pressure. By comparing it with the current pressure change value, the controller identifies the maintenance method in the historical record and reminds the user of the next maintenance method that needs to be performed.

[0104] This embodiment, based on the existing air filter maintenance method, uses a pressure sensor to interact with the controller to read the vehicle's mileage. When the air filter reaches the maintenance conditions, the controller controls the vehicle's dashboard to display a maintenance reminder and indicate the maintenance method. This makes air filter maintenance within the user's control, eliminating the need for manual recording and avoiding errors.

[0105] The above embodiments solve the problem of the traditional method of manually recording the maintenance time and method of filter elements, avoiding situations such as misrecording mileage, confusing maintenance methods, or even forgetting maintenance, thereby saving resources and providing appropriate maintenance reminders.

[0106] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A control method for prompting air filter maintenance, characterized in that: Includes the following steps: Start the vehicle and obtain the current mileage, then determine the magnitude of the current mileage; When the current mileage reaches the range where the air filter needs maintenance, a maintenance reminder for the air filter is obtained; After obtaining the maintenance reminder, compare the current pressure with the previous pressure and the current pressure with the original pressure to obtain the comparison results; Based on the comparison results, purge or replace the air filter to complete the air filter maintenance, and return to obtain the vehicle's current mileage. The determination of the current mileage includes: Determine if the current mileage is greater than 3000km; And determine whether the current mileage is less than or equal to 4000km; The step of determining whether the current mileage is greater than 3000km and whether the current mileage is less than or equal to 4000km includes: If the current mileage is less than 3000km, continue to obtain the vehicle's current mileage; When the current mileage is greater than 3000km and less than or equal to 4000km, a prompt will be generated indicating that the air filter needs maintenance. When the current mileage is greater than 3000km and greater than 4000km, a prompt indicating that the air filter must be maintained is obtained, and the current pressure is compared with the previous pressure and the current pressure with the original pressure.

2. The control method for prompting air filter maintenance according to claim 1, characterized in that: The method for obtaining a prompt indicating that the air filter needs maintenance includes: determining whether the air filter needs maintenance.

3. The control method for prompting air filter maintenance according to claim 2, characterized in that: The process of determining whether the air filter needs maintenance includes: If the air filter needs maintenance, compare the current pressure with the previous pressure and the current pressure with the original pressure. If the air filter has not been serviced, continue to check if the current mileage is less than or equal to 4000km.

4. The control method for prompting air filter maintenance according to claim 1, characterized in that: When performing air filter purging or replacement based on the comparison results to complete air filter maintenance, the following steps are included: If the current pressure is less than the previous pressure and the current pressure is greater than the original pressure, then the number of times the air filter has been purged is determined. If the current pressure is less than the previous pressure and not greater than the original pressure, then the air filter element should be replaced.

5. The control method for prompting air filter maintenance according to claim 4, characterized in that: When the current pressure is less than the previous pressure and greater than the original pressure, the determination of the number of times the air filter has been purged includes: If the number of air filter purging cycles is greater than or equal to 3, it indicates that the air filter element should be replaced. If the number of air filter purging cycles is less than 3, an air filter purging prompt will be displayed, and the air filter purging will be completed and the purging cycle will be updated.

6. The control method for prompting air filter maintenance according to claim 5, characterized in that: When the air filter is prompted to replace the filter element if the number of purging cycles is greater than or equal to 3, the following applies: Reassess the number of times the air filter has been purged; If the air filter is purged 5 times or more, the filter element should be replaced. If the number of air filter purging cycles is less than 5, then the air filter purging is completed and the purging cycle is updated.

7. A control device for prompting air filter maintenance, implementing the control method for prompting air filter maintenance as described in any one of claims 1-6, characterized in that: include: The first acquisition unit is used to acquire the current mileage of the vehicle; The first judgment unit is used to determine whether the current mileage has reached the range where the air filter needs maintenance. The second acquisition unit is used to acquire maintenance reminders for the air filter. The second judgment unit is used to determine whether the current pressure is less than the previous pressure and the current pressure is greater than the original pressure. The third judgment unit is used to determine the number of air filter purging cycles; The first control unit is used to control the air filter to purge and update the purge frequency; The second control unit is used to control the replacement of the air filter.

8. The control device for prompting air filter maintenance according to claim 7, characterized in that: The control device for prompting air filter maintenance also includes: The circulation unit is used to recalculate the mileage and enter the first acquisition unit after the first control unit or the second control unit has been purged or replaced.

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