Monitoring method, device and equipment of vehicle-mounted air filter and vehicle

Abstract

The invention discloses a method, a device and equipment for monitoring a vehicle-mounted air filter and a vehicle. The method comprises the following steps of: obtaining alarm pressure of an air inlet resistance sensor according to a theoretical life curve of the vehicle-mounted air filter; the state of the engine and the air inlet resistance measured by the air inlet resistance sensor are obtained in real time; and when it is detected that the engine is in the preset operation state, the air inlet resistance is larger than or equal to the alarm pressure and lasts for preset time, the vehicle is controlled to send out a first alarm signal. The vehicle-mounted air filter is monitored through the existing air inlet resistance sensor of the vehicle, other sensors and communication systems do not need to be added, the structure is simple, and cost is lower. The air inlet resistance measured by the air inlet resistance sensor is directly compared with the alarm pressure, only the air inlet resistance condition needs to be considered, factors such as the air quality and the air inlet amount do not need to be considered, the computational logic is relatively simpler, and the requirement for the operational capability of the ECU is low. The user can be accurately guided to maintain the air filter, and meanwhile, the user can reasonably plan the maintenance time, and normal work is prevented from being influenced.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted air filter monitoring, and in particular to a vehicle-mounted air filter monitoring method, device, equipment and vehicle. Background Art

[0002] The main function of the air filter is to provide clean, dry and sufficient air for the engine. It is a gateway to the engine and directly affects the reliability, fuel economy and emissions of the engine. The life of the air filter is limited. When the service life is reached, the air filter needs to be maintained in time (clean or replace the filter element of the air filter). If the air filter is not maintained in time, the engine intake assistance will be large and the fuel economy will be poor. In severe cases, it will even affect engine combustion and emissions. If the air filter is maintained too early, there will be problems such as premature damage to the air filter element (the number of times the filter element can be cleaned is limited, and frequent cleaning will cause premature damage to the filter element) and additional increase in the driver's labor intensity, affecting the driving experience.

[0003] At present, the maintenance of air filters mainly depends on the driver's manual prediction, which is prone to problems such as untimely maintenance or premature maintenance. One existing technology adds an additional air quality sensor and a corresponding communication system to the air filter, which has a complex structure and high cost. One existing technology is to calculate the amount of dust in the air filter based on the engine's air intake, and then calculate the service life of the air filter. However, the efficiency of the coarse filter is different at different engine speeds, so the amount of dust entering the air filter is also different. In addition, the accuracy of air quality detection during vehicle travel is not very high, so the accuracy of life prediction is poor. At the same time, factors such as air quality, air intake, and air intake resistance must be considered. The calculation logic is complex and requires high ECU computing power. The problem of air filter element damage is not considered, and there is no air filter damage warning. Summary of the invention

[0004] The present invention provides a vehicle-mounted air filter monitoring method, device, equipment and vehicle, which can accurately guide users to perform air filter maintenance and enable users to reasonably plan maintenance time to avoid affecting normal work.

[0005] In a first aspect, an embodiment of the present invention provides a method for monitoring a vehicle-mounted air filter, wherein an intake resistance sensor is provided between the vehicle-mounted air filter and the engine of the vehicle;

[0006] The vehicle-mounted air filter monitoring method comprises:

[0007] Obtaining the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter;

[0008] Acquiring the state of the engine and the intake resistance measured by the intake resistance sensor in real time;

[0009] When it is detected that the engine is in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the vehicle is controlled to send out a first alarm signal.

[0010] Optionally, before obtaining the alarm pressure of the intake resistance sensor according to the theoretical life curve, the method further includes:

[0011] According to the relationship between the intake resistance and the mileage of the vehicle or the operating time of the vehicle under the dust concentration in the preset usage scenario of the vehicle, a theoretical life curve of the vehicle air filter is obtained; wherein the abscissa of the theoretical life curve includes the mileage or the operating time, and the ordinate of the theoretical life curve includes the intake resistance.

[0012] Optionally, the preset operating state of the engine includes: an idle state, a standard speed state and a rated speed state, the speed in the idle state is lower than the speed in the standard speed state, and the speed in the standard speed state is lower than the speed in the rated speed;

[0013] The theoretical life curve includes: a first theoretical life curve when the engine is in the idle state, a second theoretical life curve when the engine is in the standard speed state, and a third theoretical life curve when the engine is in the rated speed state;

[0014] The alarm pressure includes a first alarm pressure when the engine is in the idle state, a second alarm pressure when the engine is in the standard speed state, and a third alarm pressure when the engine is in the rated speed state.

[0015] Optionally, when it is detected that the engine is in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, controlling the vehicle to send a first alarm signal includes:

[0016] When it is detected that the engine is in an idle state, and the intake resistance is greater than or equal to the first alarm pressure and lasts for a first preset time, controlling the vehicle to send the first alarm signal;

[0017] When it is detected that the engine is in a standard speed state, and the intake resistance is greater than or equal to the second alarm pressure and lasts for a second preset time, controlling the vehicle to send the first alarm signal;

[0018] When it is detected that the engine is in a rated speed state, and the intake resistance is greater than or equal to the third alarm pressure and lasts for a third preset time, the vehicle is controlled to send out the first alarm signal.

[0019] Optionally, after acquiring the state of the engine and the intake resistance measured by the intake resistance sensor in real time, the method further includes:

[0020] When it is detected that the engine is in a preset operating state and the intake resistance is less than or equal to a preset minimum pressure, the vehicle is controlled to send out a second alarm signal.

[0021] Optionally, after the vehicle is controlled to send out an alarm signal when it is detected that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the method further includes:

[0022] The remaining operating mileage or remaining operating time of the intake resistance sensor is obtained according to the alarm pressure, the intake resistance and the theoretical life curve.

[0023] Optionally, obtaining the remaining operating mileage or remaining operating time of the intake resistance sensor according to the alarm pressure, the intake resistance and the theoretical life curve includes:

[0024] The remaining mileage or the remaining operating time is calculated based on the difference between the alarm pressure and the intake resistance, the difference between the current intake resistance and the intake resistance before a second preset time, and the theoretical life curve.

[0025] In a second aspect, an embodiment of the present invention further provides a monitoring device for a vehicle air filter, comprising:

[0026] An alarm pressure acquisition module, used to obtain the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter;

[0027] An engine state and intake resistance acquisition module, used to acquire the engine state and the intake resistance measured by the intake resistance sensor in real time;

[0028] The alarm signal control module is used to control the vehicle to send out a first alarm signal when the engine state and intake resistance acquisition module detects that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time.

[0029] In a third aspect, an embodiment of the present invention further provides a vehicle-mounted air filter monitoring device, the vehicle-mounted air filter monitoring device comprising: at least one processor; and a memory in communication connection with the at least one processor;

[0030] Wherein, 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 vehicle air filter monitoring method as described in any embodiment of the first aspect.

[0031] In a fourth aspect, an embodiment of the present invention further provides a vehicle, comprising: a monitoring device for a vehicle-mounted air filter as described in the third aspect.

[0032] The embodiment of the present invention provides a method, device, equipment and vehicle for monitoring a vehicle-mounted air filter. The vehicle-mounted air filter is monitored by using the existing intake resistance sensor of the vehicle. There is no need to add other sensors and communication systems. Only corresponding strategies need to be added to the processor. The structure is simple and the cost is lower. The intake resistance measured by the intake resistance sensor is directly compared with the alarm pressure set by the system. Only the intake resistance situation needs to be considered, and factors such as air quality and intake volume do not need to be considered. The calculation logic is relatively simpler and the requirements for ECU computing power are relatively low. It can accurately guide users to perform air filter maintenance and enable users to reasonably plan maintenance time to avoid affecting normal work.

[0033] It should be understood that the contents described in this section are not intended to identify the key or important features of the embodiments of the present invention, nor are they intended to limit the scope of the present invention. Other features of the present invention will become easily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, 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 invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0035] Figure 1 A flow chart of a vehicle air filter monitoring method provided by an embodiment of the present invention;

[0036] Figure 2 A schematic diagram of the installation position of an intake resistance sensor provided by an embodiment of the present invention;

[0037] Figure 3 A flow chart of another vehicle air filter monitoring method provided by an embodiment of the present invention;

[0038] Figure 4 A schematic diagram of a theoretical life curve provided by an embodiment of the present invention;

[0039] Figure 5 A schematic diagram of the structure of a vehicle air filter monitoring device provided by an embodiment of the present invention;

[0040] Figure 6 A schematic diagram of the structure of another vehicle air filter monitoring device provided by an embodiment of the present invention;

[0041] Figure 7 A schematic structural diagram of a vehicle air filter monitoring device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0042] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below 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 of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0043] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0044] Figure 1 A flow chart of a vehicle air filter monitoring method provided by an embodiment of the present invention, Figure 2 A schematic diagram of the location of an intake resistance sensor provided in an embodiment of the present invention, with reference to Figure 2 The vehicle air filter A of the vehicle of the embodiment of the present invention includes an intake resistance sensor C between the vehicle engine B. This embodiment is applicable to monitoring the vehicle air filter. The method can be executed by a monitoring device of the vehicle air filter. The monitoring device of the vehicle air filter can be implemented in the form of hardware and / or software. The monitoring device of the vehicle air filter can be configured in the monitoring device of the vehicle air filter. Figure 1 , the method comprises the following steps:

[0045] S110. Obtain an alarm pressure of an intake resistance sensor according to a theoretical life curve of the vehicle-mounted air filter.

[0046] It should be noted that the embodiment of the present invention inputs the theoretical life curve of the vehicle air filter into the processor 11 as a reference for life prediction, and sets the alarm pressure of the intake resistance sensor at the same time, so the alarm pressure of the intake resistance sensor can be obtained according to the theoretical life curve of the vehicle air filter. In other embodiments, considering that the intake negative pressure generated by different intake volumes at different engine speeds is different, and considering that the engine often runs in the idle state, the standard speed state (common speed) and the rated speed state, the alarm pressure of the three working conditions of the engine idle speed, standard speed and rated speed can be calibrated.

[0047] S120: Acquire the engine status and the intake resistance measured by the intake resistance sensor in real time.

[0048] In the embodiment of the present invention, the intake resistance value is measured and fed back in real time through the intake resistance sensor C at the air outlet of the vehicle-mounted air filter A.

[0049] S130: When it is detected that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the vehicle is controlled to send out a first alarm signal.

[0050] The preset time can be freely set by the user according to the actual situation. For example, the preset time can include one minute. The first alarm signal can be issued by the alarm module D of the vehicle. The alarm module D can include a device with a voice prompt function that comes with the vehicle. When the vehicle does not reach the alarm condition, the vehicle instrument E displays the remaining mileage or remaining running time of the vehicle.

[0051] It is understandable that when the engine is detected to be in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure, and continues for a preset time, the vehicle is controlled to send out the first alarm signal, which can avoid a sudden increase in intake demand due to short-term rapid acceleration, which causes the intake resistance to exceed the alarm pressure and cause a false alarm. The vehicle sends out the first alarm signal to remind the user to clean or replace the filter element.

[0052] The embodiment of the present invention utilizes the existing intake resistance sensor of the vehicle to monitor the vehicle-mounted air filter. There is no need to add other sensors and communication systems. It only needs to add corresponding strategies in the processor. It has a simple structure and lower cost. The intake resistance measured by the intake resistance sensor is directly compared with the alarm pressure set by the system. It only needs to consider the intake resistance situation, without considering factors such as air quality and intake volume. The calculation logic is relatively simpler and the requirements for ECU computing power are lower. It can accurately guide users to perform air filter maintenance and enable users to reasonably plan maintenance time to avoid affecting normal work.

[0053] Figure 3 A flowchart of another vehicle air filter monitoring method provided by an embodiment of the present invention, referring to Figure 3, the method comprises the following steps:

[0054] S310: Obtain a theoretical life curve of the vehicle air filter according to a relationship between the air intake resistance and the mileage or running time of the vehicle under a dust concentration in a preset usage scenario of the vehicle.

[0055] The abscissa of the theoretical life curve includes the mileage or the running time, and the ordinate of the theoretical life curve includes the intake resistance.

[0056] It should be noted that vehicles for different purposes will be used in different usage scenarios, and the dust concentration in different usage scenarios will generally be different. The embodiment of the present invention performs laboratory calibration or simulation calculation on the service life of the vehicle air filter according to the dust concentration of the vehicle in the preset usage scenario, and can obtain the relationship between the intake resistance measured by the vehicle air filter and the vehicle's mileage or the vehicle's operating time, forming an intake resistance-mileage curve (generally used for roads) or an intake resistance-operating time curve (generally used for non-roads).

[0057] S320. Obtain the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter.

[0058] S330: Acquire the engine status and the intake resistance measured by the intake resistance sensor in real time.

[0059] S340: When it is detected that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the vehicle is controlled to send out a first alarm signal.

[0060] The embodiment of the present invention takes into account the influence of dust concentration in different usage scenarios and the influence of filter element differences, monitors the intake resistance value in real time when the engine is running, and establishes the relationship between the intake resistance value and the vehicle mileage or the engine running time to fit the intake resistance-mileage curve or the intake resistance-running time curve. It is helpful to judge whether the vehicle air filter needs maintenance or replacement through the intake resistance measured by the intake resistance sensor.

[0061] Figure 4 A schematic diagram of a theoretical life curve provided in an embodiment of the present invention. Optionally, based on the above embodiment, refer to Figure 4, the preset operating states of the engine include: idle state, standard speed state and rated speed state. Among them, the speed in the idle state is lower than the speed in the standard speed state, and the speed in the standard speed state is lower than the speed in the rated speed. The theoretical life curve includes: a first theoretical life curve when the engine is in the idle state, a second theoretical life curve when the engine is in the standard speed state, and a third theoretical life curve when the engine is in the rated speed state. Among them, the alarm pressure includes a first alarm pressure when the engine is in the idle state, a second alarm pressure when the engine is in the standard speed state, and a third alarm pressure when the engine is in the rated speed state.

[0062] Optionally, based on the above embodiment, continue to refer to Figure 3 , step S340 includes:

[0063] S341. When it is detected that the engine is in an idle state and the intake resistance is greater than or equal to the first alarm pressure and lasts for a first preset time, the vehicle is controlled to send out a first alarm signal.

[0064] S342: When it is detected that the engine is in a standard speed state and the intake resistance is greater than or equal to the second alarm pressure and lasts for a second preset time, the vehicle is controlled to send out a first alarm signal.

[0065] S343: When it is detected that the engine is in the rated speed state and the intake resistance is greater than or equal to the third alarm pressure and lasts for a third preset time, the vehicle is controlled to send out a first alarm signal.

[0066] Among them, the first alarm pressure, the second alarm pressure, the third alarm pressure, the first preset time, the second preset time and the third preset time can be freely set by the user according to actual conditions. For example, the first alarm pressure can be set to be greater than the second alarm pressure, the second alarm pressure can be set to be greater than the third alarm pressure, and the same first preset time, second preset time and third preset time can be set. The first alarm signal is used to remind the user that the vehicle air filter is about to reach the end of its service life.

[0067] Optionally, based on the above embodiment, continue to refer to Figure 3 , after step S330, further comprising:

[0068] S344: When it is detected that the engine is in a preset operating state and the intake resistance is less than or equal to a preset minimum pressure, the vehicle is controlled to send out a second alarm signal.

[0069] The preset minimum pressure can be freely set by the user according to actual usage, as long as the preset minimum pressure is less than the minimum resistance measured by the intake resistance sensor when the vehicle uses a new on-board air filter. The second alarm signal is used to remind the user that the filter element of the on-board air filter is damaged and needs to be replaced.

[0070] It can be understood that the embodiment of the present invention adds a comparison link between the intake resistance and the preset minimum pressure, which can judge the damage of the filter element of the vehicle-mounted air filter. When the filter element of the vehicle-mounted air filter is damaged, the user can be reminded to replace the filter element in time to avoid premature wear of the engine and cylinder scuffing and other faults, which can improve the reliability of the engine and reduce the user's maintenance costs.

[0071] Optionally, based on the above embodiment, continue to refer to Figure 3 , after step S340, further comprising:

[0072] S350 , obtaining the remaining operating mileage or remaining operating time of the intake resistance sensor according to the alarm pressure, the intake resistance and the theoretical life curve.

[0073] It can be understood that the alarm pressure set in the embodiment of the present invention can continue to operate for a period of time after the intake resistance of the intake resistance sensor reaches the alarm pressure, so that the user can perform maintenance on the vehicle air filter (clean or replace the filter element) after the work is completed after receiving the first alarm signal, so as to avoid affecting the normal work of the user.

[0074] Optionally, based on the above embodiment, step S350 includes: calculating the remaining mileage or remaining operating time based on the difference between the alarm pressure and the intake resistance, the difference between the current intake resistance and the intake resistance before the second preset time, and the theoretical life curve.

[0075] The second preset time can be freely set by the user according to actual usage. For example, the second preset time can include one hour.

[0076] The embodiment of the present invention calculates the remaining mileage or remaining operating time by the difference between the alarm pressure and the current intake resistance, combined with the difference between the current intake resistance and the intake resistance before the second preset time, and the theoretical calibrated life curve. It can update the service life of the vehicle air filter in real time as the vehicle environment changes and the filter element differs. Therefore, the life prediction is more accurate, thereby more accurately guiding the user to arrange work and perform maintenance on the vehicle air filter.

[0077] In summary, the embodiment of the present invention uses the existing intake resistance sensor of the vehicle to monitor the vehicle-mounted air filter, without adding other sensors and communication systems, and only needs to add corresponding strategies in the processor, which has a simple structure and lower cost. The intake resistance measured by the intake resistance sensor is directly compared with the alarm pressure set by the system, and only the intake resistance situation needs to be considered, without considering factors such as air quality and intake volume. The calculation logic is relatively simpler and the ECU computing power requirement is relatively low. It can accurately guide users to perform air filter maintenance, and at the same time, users can reasonably plan maintenance time to avoid affecting normal work. When it is detected that the engine is in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure, and it lasts for a preset time, the vehicle is controlled to send a first alarm signal, which can avoid a sudden increase in the intake demand due to short-term rapid acceleration, resulting in the intake resistance exceeding the alarm pressure and causing a false alarm. Considering the influence of dust concentration in different usage scenarios and the influence of filter element differences, the intake resistance value is monitored in real time when the engine is running, and the relationship between the intake resistance value and the vehicle running mileage or the engine running time is established to fit the intake resistance-mileage curve or the intake resistance-running time curve. It is helpful to judge whether the vehicle air filter needs maintenance or replacement through the intake resistance measured by the intake resistance sensor. The comparison link between the intake resistance and the preset minimum pressure is added, and the damage of the filter element of the vehicle air filter can be judged. When the filter element of the vehicle air filter is damaged, the user can be reminded to replace the filter element in time to avoid premature wear and cylinder pull and other faults of the engine, which can improve the reliability of the engine and reduce the maintenance cost of the user. The alarm pressure set in the embodiment of the present invention can run for a period of time after the intake resistance of the intake resistance sensor reaches the alarm pressure, so that the user can perform maintenance (cleaning or replacing the filter element) of the vehicle air filter after the work is completed after receiving the first alarm signal, so as to avoid affecting the normal work of the user. And the service life of the vehicle air filter can be updated in real time, so the life prediction is more accurate, thereby more accurately guiding the user to arrange work and maintain the vehicle air filter.

[0078] Figure 5 A schematic diagram of a vehicle air filter monitoring device provided by an embodiment of the present invention, referring to Figure 5 The device includes: an alarm pressure acquisition module 510, an engine state and intake resistance acquisition module 520 and an alarm signal control module 530.

[0079] In an embodiment of the present invention, the alarm pressure acquisition module 510 is used to obtain the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter; the engine status and intake resistance acquisition module 520 is used to obtain the engine status and the intake resistance measured by the intake resistance sensor in real time; the alarm signal control module 530 is used to control the vehicle to send a first alarm signal when the engine status and intake resistance acquisition module detects that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time.

[0080] Optionally, the alarm signal control module 530 is also used to control the vehicle to send out a first alarm signal when it is detected that the engine is in an idle state, and the intake resistance is greater than or equal to the first alarm pressure, and lasts for a first preset time. When it is detected that the engine is in a standard speed state, and the intake resistance is greater than or equal to the second alarm pressure, and lasts for a second preset time, the vehicle is controlled to send out a first alarm signal. When it is detected that the engine is in a rated speed state, and the intake resistance is greater than or equal to the third alarm pressure, and lasts for a third preset time, the vehicle is controlled to send out a first alarm signal. When it is detected that the engine is in a preset running state, and the intake resistance is less than or equal to the preset minimum pressure, the vehicle is controlled to send out a second alarm signal.

[0081] Figure 6 A schematic diagram of another vehicle air filter monitoring device provided by an embodiment of the present invention, referring to Figure 6 The device also includes: a theoretical life curve acquisition module 610 and an intake resistance sensor life prediction module 620.

[0082] In the embodiment of the present invention, the theoretical life curve acquisition module 610 is used to obtain the theoretical life curve of the vehicle air filter according to the relationship between the intake resistance and the vehicle's mileage or the vehicle's operating time under the dust concentration of the preset use scenario. Among them, the horizontal coordinate of the theoretical life curve includes the mileage or the operating time, and the vertical coordinate of the theoretical life curve includes the intake resistance. The intake resistance sensor life prediction module 620 is used to obtain the remaining operating mileage or remaining operating time that the intake resistance sensor can use according to the alarm pressure, the intake resistance and the theoretical life curve.

[0083] The vehicle air filter monitoring device provided in the embodiment of the present invention can execute the vehicle air filter monitoring method provided in any embodiment of the present invention, and has functional modules and beneficial effects corresponding to the execution method. For contents not described in detail in the embodiment of the present invention, reference can be made to the vehicle air filter monitoring method provided in the above embodiment.

[0084] Figure 7A structural diagram of a monitoring device for a vehicle air filter provided for an embodiment of the present invention. The monitoring device for the vehicle air filter is intended to represent various forms of digital computers, such as laptop computers, desktop computers, workbenches, personal digital assistants, servers, blade servers, mainframe computers, and other suitable computers. The monitoring device for the vehicle air filter 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 invention described and / or required herein.

[0085] like Figure 7 As shown, the monitoring device 10 of the vehicle air filter includes at least one processor 11, and a memory connected to the at least one processor 11, such as a read-only memory (ROM) 12, a random access memory (RAM) 13, etc., wherein the memory stores a computer program that can be executed by at least one processor, and 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 to the random access memory (RAM) 13. In RAM13, various programs and data required for the operation of the monitoring device 10 of the vehicle air filter can also be stored. The processor 11, ROM12 and RAM13 are connected to each other through a bus 14. An input / output (I / O) interface 15 is also connected to the bus 14.

[0086] Multiple components in the vehicle air filter monitoring 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 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 vehicle air filter monitoring device 10 to exchange information / data with other devices through a computer network such as the Internet and / or various telecommunication networks.

[0087] The processor 11 may be a variety of general and / or special processing components with processing and computing capabilities. Some examples of the processor 11 include, but are not limited to, a central processing unit (CPU), a graphics processing unit (GPU), various dedicated artificial intelligence (AI) computing chips, various processors running machine learning model algorithms, digital signal processors (DSPs), and any appropriate processors, controllers, microcontrollers, etc. The processor 11 executes the various methods and processes described above, such as a method for monitoring a vehicle air filter.

[0088] In some embodiments, the monitoring method of the vehicle air filter can be implemented as a computer program, which is tangibly contained in a computer-readable storage medium, such as a storage unit 18. In some embodiments, part or all of the computer program can be loaded and / or installed on the monitoring device 10 of the vehicle air filter via ROM12 and / or communication unit 19. When the computer program is loaded into RAM13 and executed by processor 11, one or more steps of the monitoring method of the vehicle air filter described above can be performed. Alternatively, in other embodiments, the processor 11 can be configured to perform the monitoring method of the vehicle air filter by any other appropriate means (e.g., by means of firmware).

[0089] Various implementations of the systems and techniques described above 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), systems on chips (SOCs), load programmable logic devices (CPLDs), computer hardware, firmware, software, and / or combinations thereof. These various implementations can include: being implemented in one or more computer programs that can be executed and / or interpreted on a programmable system including 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.

[0090] An embodiment of the present invention further provides a vehicle, comprising the vehicle-mounted air filter monitoring device provided by the above embodiment.

[0091] It should be understood that the various forms of processes shown above can be used to reorder, add or delete steps. For example, the steps described in the present invention can be executed in parallel, sequentially or in different orders, as long as the desired results of the technical solution of the present invention can be achieved, and this document does not limit this.

[0092] The above specific implementations do not constitute a limitation on the protection scope of the present invention. It should be understood by those skilled in the art that various modifications, combinations, sub-combinations and substitutions can be made according to design requirements and other factors. Any modification, equivalent substitution and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for monitoring a vehicle air filter, characterized in that: An intake resistance sensor is included between the vehicle-mounted air filter and the engine of the vehicle; The vehicle-mounted air filter monitoring method comprises: Obtaining the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter; Acquiring the state of the engine and the intake resistance measured by the intake resistance sensor in real time; When it is detected that the engine is in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the vehicle is controlled to send out a first alarm signal.

2. The vehicle air filter monitoring method according to claim 1, characterized in that: Before obtaining the alarm pressure of the intake resistance sensor according to the theoretical life curve, the method further includes: According to the relationship between the intake resistance and the mileage of the vehicle or the operating time of the vehicle under the dust concentration in the preset usage scenario of the vehicle, a theoretical life curve of the vehicle air filter is obtained; wherein the abscissa of the theoretical life curve includes the mileage or the operating time, and the ordinate of the theoretical life curve includes the intake resistance.

3. The vehicle air filter monitoring method according to claim 1, characterized in that: The preset running state of the engine includes: an idle state, a standard speed state and a rated speed state, the speed in the idle state is lower than the speed in the standard speed state, and the speed in the standard speed state is lower than the speed in the rated speed; The theoretical life curve includes: a first theoretical life curve when the engine is in the idle state, a second theoretical life curve when the engine is in the standard speed state, and a third theoretical life curve when the engine is in the rated speed state; The alarm pressure includes a first alarm pressure when the engine is in the idle state, a second alarm pressure when the engine is in the standard speed state, and a third alarm pressure when the engine is in the rated speed state.

4. The vehicle air filter monitoring method according to claim 3, characterized in that: When it is detected that the engine is in a preset operating state, and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, controlling the vehicle to send a first alarm signal includes: When it is detected that the engine is in an idle state, and the intake resistance is greater than or equal to the first alarm pressure and lasts for a first preset time, controlling the vehicle to send the first alarm signal; When it is detected that the engine is in a standard speed state, and the intake resistance is greater than or equal to the second alarm pressure and lasts for a second preset time, controlling the vehicle to send the first alarm signal; When it is detected that the engine is in a rated speed state, and the intake resistance is greater than or equal to the third alarm pressure and lasts for a third preset time, the vehicle is controlled to send out the first alarm signal.

5. The vehicle air filter monitoring method according to claim 1, characterized in that: After acquiring the state of the engine and the intake resistance measured by the intake resistance sensor in real time, the method further includes: When it is detected that the engine is in a preset operating state and the intake resistance is less than or equal to a preset minimum pressure, the vehicle is controlled to send out a second alarm signal.

6. The vehicle air filter monitoring method according to claim 1, characterized in that: After the vehicle is controlled to send out an alarm signal when it is detected that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time, the method further includes: The remaining operating mileage or remaining operating time of the intake resistance sensor is obtained according to the alarm pressure, the intake resistance and the theoretical life curve.

7. The vehicle air filter monitoring method according to claim 6, characterized in that: The obtaining the remaining operating mileage or remaining operating time of the intake resistance sensor according to the alarm pressure, the intake resistance and the theoretical life curve includes: The remaining mileage or the remaining operating time is calculated based on the difference between the alarm pressure and the intake resistance, the difference between the current intake resistance and the intake resistance before a second preset time, and the theoretical life curve.

8. A vehicle air filter monitoring device, characterized in that: include: An alarm pressure acquisition module, used to obtain the alarm pressure of the intake resistance sensor according to the theoretical life curve of the vehicle-mounted air filter; An engine state and intake resistance acquisition module, used to acquire the engine state and the intake resistance measured by the intake resistance sensor in real time; The alarm signal control module is used to control the vehicle to send out a first alarm signal when the engine state and intake resistance acquisition module detects that the engine is in a preset operating state and the intake resistance is greater than or equal to the alarm pressure and lasts for a preset time.

9. A vehicle air filter monitoring device, characterized in that: The vehicle air filter monitoring device comprises: at least one processor; and a memory in communication connection with the at least one processor; The memory stores a computer program executable 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 vehicle air filter monitoring method according to any one of claims 1 to 7.

10. A vehicle, characterized in that: include: The vehicle-mounted air filter monitoring device as claimed in claim 9.

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