CN110953103A - Fuel oil filter service life early warning system, early warning method and early warning device - Google Patents
Fuel oil filter service life early warning system, early warning method and early warning device Download PDFInfo
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- CN110953103A CN110953103A CN201911248589.6A CN201911248589A CN110953103A CN 110953103 A CN110953103 A CN 110953103A CN 201911248589 A CN201911248589 A CN 201911248589A CN 110953103 A CN110953103 A CN 110953103A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M37/00—Apparatus or systems for feeding liquid fuel from storage containers to carburettors or fuel-injection apparatus; Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines
- F02M37/22—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system
- F02M37/32—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements
- F02M37/40—Arrangements for purifying liquid fuel specially adapted for, or arranged on, internal-combustion engines, e.g. arrangements in the feeding system characterised by filters or filter arrangements with means for detection of clogging
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D41/00—Electrical control of supply of combustible mixture or its constituents
- F02D41/22—Safety or indicating devices for abnormal conditions
- F02D2041/224—Diagnosis of the fuel system
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
Abstract
The invention relates to the technical field of vehicles, in particular to a fuel filter service life early warning system, an early warning method and an early warning device. The fuel filter service life early warning system comprises a pressure detection assembly, a controller and a warning device; the pressure detection assembly and the warning device are electrically connected or communicated with the controller; the pressure detection assembly is used for respectively measuring the inlet pressure and the outlet pressure of the filter, and the controller is used for controlling the warning device to prompt a user to replace the filter when the difference value of the inlet pressure and the outlet pressure is larger than a preset value, and is used for calculating the residual service life of the filter and controlling the warning device to inform the user when the difference value of the inlet pressure and the outlet pressure is smaller than or equal to the preset value. Can both can real time monitoring filter in service behavior, can also remind the maintenance of customer's filter high-efficiently.
Description
Technical Field
The invention relates to the technical field of vehicles, in particular to a fuel filter service life early warning system, an early warning method and an early warning device.
Background
At present, the main alarm mode of the fuel filter of each engineering machinery manufacturer is to alarm when the oil absorption resistance of an engine reaches a threshold value set by a sensor, or to carry out early warning of blockage of the fuel filter at all, and a user is required to replace and maintain all the fuel filters in a specified period.
Disclosure of Invention
The invention aims to provide a fuel filter service life early warning system, an early warning method and an early warning device, which can monitor the service condition of a filter in real time and can effectively remind a client of filter maintenance.
Embodiments of the invention may be implemented as follows:
in a first aspect, an embodiment provides a fuel filter life warning system for a filter life warning, including:
the pressure detection assembly, the controller and the warning device;
the pressure detection assembly and the warning device are electrically connected or communicated with the controller;
the pressure detection assembly is used for respectively measuring the inlet pressure and the outlet pressure of the filter, and the controller is used for controlling the warning device to prompt a user to replace the filter when the difference value of the inlet pressure and the outlet pressure is larger than a preset value, and is used for calculating the residual service life of the filter and controlling the warning device to inform the user when the difference value of the inlet pressure and the outlet pressure is smaller than or equal to the preset value.
In an alternative embodiment, the filter comprises a pre-filter and a fine filter; the difference value between the inlet pressure and the outlet pressure of the filter is a first difference value between the inlet pressure and the outlet pressure of the fuel prefilter or a second difference value between the inlet pressure and the outlet pressure of the fuel fine filter.
In an alternative embodiment, the filter comprises a pre-filter and a fine filter, and the difference between the inlet pressure and the outlet pressure of the filter is the difference between the inlet pressure of the pre-filter and the outlet pressure of the fine filter;
or the difference between the inlet pressure and the outlet pressure of the filter is the sum of the first difference and the second difference.
In an alternative embodiment, the pressure sensing assembly includes a first sensor, a second sensor, and a third sensor, each connected to the controller;
the first sensor, the pre-filter, the second sensor, the fine filter and the third sensor are sequentially arranged on an oil pipe;
the first sensor is used for measuring the pressure at the inlet of the pre-filter, the second sensor is used for measuring the pressure at the outlet of the pre-filter and measuring the pressure at the inlet of the fine filter, and the third sensor is used for measuring the pressure at the outlet of the fine filter.
In an optional embodiment, the controller is configured to calculate the remaining life of the filter according to a corresponding relationship between the difference and the remaining life and control the warning device to notify a user when the difference between the inlet pressure and the outlet pressure of the filter is less than or equal to a preset value.
In an alternative embodiment, the warning device includes a human-machine interface for prompting a user to replace the filter or to prompt the remaining life of the filter.
In an optional embodiment, the human-computer interface comprises a display and an audible and visual alarm, the display displays the warning information sent by the controller, and the audible and visual alarm sends out audible and visual warning.
In an alternative embodiment, the system further comprises a cloud server in communication with the controller, the cloud server storing a standard differential pressure-life curve;
the cloud server is used for collecting maintenance data of other filters which are located in the same area as the filter and have the same model, and correcting a standard pressure difference-service life curve according to the maintenance data to obtain an actual pressure difference-service life curve;
and the controller is used for determining the corresponding relation between the difference value and the residual life according to an actual pressure difference-life curve.
In a second aspect, embodiments provide a warning method for a fuel filter life warning system in any one of the foregoing embodiments, including:
acquiring inlet pressure and outlet pressure of a filter;
when the difference value between the inlet pressure and the outlet pressure is larger than the preset value, controlling the warning device to prompt a user to replace the filter;
and when the difference value between the inlet pressure and the outlet pressure is smaller than or equal to a preset value, calculating the residual service life of the filter and controlling a warning device to inform a user.
In a third aspect, an embodiment provides an early warning device, which is used in the fuel filter life early warning system in any one of the foregoing embodiments, and includes an obtaining module, a prompting module, and a notification module;
the acquisition module is used for acquiring the inlet pressure and the outlet pressure of the filter;
the prompting module is used for controlling the warning device to prompt a user to replace the filter when the difference value between the inlet pressure and the outlet pressure is larger than the preset value;
and the informing module is used for calculating the residual service life of the filter and controlling the warning device to inform a user when the difference value between the inlet pressure and the outlet pressure is less than or equal to a preset value.
The beneficial effects of the embodiment of the invention include, for example:
the utility model provides a fuel filter core life-span early warning system both can real time monitoring filter in service behavior, can also remind the customer to change the filter or early warning in advance tells the customer to change the filter.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a fuel filter life warning system;
FIG. 2 is a schematic illustration of a fuel filter pressure differential-life curve;
FIG. 3 is a diagram illustrating a correction of a fuel filter pressure differential-life curve.
Icon: 10-a fuel filter life warning system; 100-a pressure detection assembly; 101-a first sensor; 102-a second sensor; 103-a third sensor; 200-a controller; 300-a warning device; 400-oil pipe; 500-a transmission line; 600-a cloud server; 20-a filter; 21-a fuel prefilter; 22-fine fuel filter.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or a positional relationship based on that shown in the drawings or that the product of the present invention is used as it is, this is only for convenience of description and simplification of the description, and it does not indicate or imply that the device or the element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.
Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
In the current engineering machinery, the fuel filter 20 is used as an essential link in an engine oil supply system, and the filtering burden of impurities in oil products is required to be born by the fuel filter 20. The fuel quality in the market is not high, particularly the fuel quality on engineering machinery is worse, the emission requirement of the engine of the non-road machinery is higher and higher, and the cleanliness of the fuel is required to be higher. The higher the impurities are, the more easily the fuel filter 20 is blocked, and as the resistance of the fuel filter 20 increases, insufficient fuel supply, difficult starting, insufficient power and unstable engine operation can occur. The increase of the oil absorption resistance can cause the filtration efficiency of the fuel filter 20 to be reduced, and even can cause the fuel filter 20 to be broken and failed, so that precision parts in an engine fuel injection system can be abraded and stuck at an accelerated speed, and a larger loss is brought to an engine.
The main alarm mode of the fuel filter of each engineering machinery manufacturer at present is to alarm when the oil absorption resistance of an engine reaches a threshold value set by a sensor, or to not perform early warning of blockage of the fuel filter 20 at all, and a user is required to replace and maintain all the fuel filters 20 in a specified period. These modes do not give advance warning to the maintenance time of fuel filter 20, provide timely, accurate maintenance time point for the customer, may lead to the customer to maintain untimely, cause the damage of equipment. Meanwhile, due to different particle size distribution of fuel impurities in various regions and different fuel filter filtering precision set by various manufacturers, when blockage is achieved, the blockage of individual fuel filter is serious, the blockage of individual fuel filter is not serious, and the maintenance cost of customers is increased due to the maintenance of the fuel filter with the serious blockage.
In order to solve the technical problem, the scheme provides a fuel filter service life early warning system 10.
Referring to fig. 1, the present embodiment provides a fuel filter life warning system 10 for warning the life of a filter 20, including:
a pressure detection assembly 100, a controller 200 and an alarm device 300;
the pressure detection assembly 100 and the warning device 300 are both electrically connected or communicated with the controller 200;
the pressure sensing assembly 100 is configured to measure an inlet pressure and an outlet pressure of the filter 20, respectively, and the controller 200 is configured to control the warning device 300 to prompt a user to replace the filter 20 when a difference between the inlet pressure and the outlet pressure is greater than a preset value, and to calculate a remaining life of the filter 20 and control the warning device 300 to notify the user when the difference between the inlet pressure and the outlet pressure is less than or equal to the preset value.
In this way, the inlet and outlet pressure is detected by the pressure detection assembly 100, the differential pressure value is calculated by the controller 200, and whether the filter 20 needs to be maintained is determined by the differential pressure value, so that the maintenance operation on the filter 20 can be completed timely and efficiently.
Please refer to fig. 1 to 3 for further structural details.
In the present embodiment of the invention, the filter 20 includes a pre-filter 21 and a fine filter 22; the difference between the inlet pressure and the outlet pressure of the filter 20 is a first difference between the inlet pressure and the outlet pressure of the pre-filter 21 or a second difference between the inlet pressure and the outlet pressure of the fine filter 22.
Further, the filter 20 includes a pre-filter 21 and a fine filter 22, and the difference between the inlet pressure and the outlet pressure of the filter 20 is the difference between the inlet pressure of the pre-filter 21 and the outlet pressure of the fine filter 22.
Or the difference between the inlet pressure and the outlet pressure of the filter 20 is the sum of the first difference and the second difference.
In the present embodiment of the present invention, the pressure detecting assembly 100 includes a first sensor 101, a second sensor 102, and a third sensor 103, each connected to the controller 200; the first sensor 101, the pre-filter 21, the second sensor 102, the fine filter 22 and the third sensor 103 are sequentially arranged on the oil pipe 400; a first sensor 101 is provided for measuring the pressure at the inlet of the pre-filter 21, a second sensor 102 is provided for measuring the pressure at the outlet of the pre-filter 21 and for measuring the pressure at the inlet of the fine filter 22, and a third sensor 103 is provided for measuring the pressure at the outlet of the fine filter 22.
Alternatively, in the present embodiment of the present invention, the controller 200 is configured to calculate the remaining life of the filter 20 according to the corresponding relationship between the difference and the remaining life and control the warning device 300 to notify the user when the difference between the inlet pressure and the outlet pressure of the filter 20 is less than or equal to the preset value.
In the embodiment, the first sensor 101 is arranged on an oil path of an oil inlet of the pre-filter 21 and is used for detecting the fuel pressure P1 in front of the pre-filter 21; the second sensor 102 is arranged on an oil path at the oil outlet of the pre-filter 21 and is used for detecting the fuel pressure after the pre-filter 21 and the fuel pressure P2 before the fine filter; the third sensor 103 is arranged on an oil path of the fuel fine filter oil outlet and used for detecting the fuel pressure P3 behind the fuel fine filter 22; the pressure signals of P1, P2 and P3 are transmitted to the controller 200 through the transmission line 500 for calculation and analysis. The differential pressure delta P1 of the fuel prefilter 21 is P1-P2, the differential pressure delta P2 of the fuel fine filter 22 is P2-P3, and the total pressure difference delta P of the fuel system is delta P1+ delta P2.
The total pressure difference of the fuel system may also be Δ P — P1-P3.
Optionally, in an embodiment, the warning device 300 includes a human-machine interface for prompting a user to replace the filter 20 or to indicate the remaining life of the filter 20. Further, the human-computer interface comprises a display and an audible and visual alarm, the display displays the warning information sent by the controller 200, and the audible and visual alarm sends audible and visual warnings. This ensures that the customer can efficiently and conveniently obtain maintenance information for the filter 20.
In the embodiment of the present invention, the present invention further includes a cloud server 600 in communication with the controller 200, wherein the cloud server 600 stores a standard pressure difference-life curve;
the cloud server 600 is configured to collect maintenance data of other filters 20 that are located in the same area as the filter 20 and have the same model, and correct the standard differential pressure-life curve according to the maintenance data to obtain an actual differential pressure-life curve;
the controller 200 is configured to determine a corresponding relationship between the difference and the remaining life according to the actual differential pressure-life curve.
It should be noted that the preset value of the inlet/outlet differential pressure value of the filter 20 is an alarm threshold value preset in the controller 200, and may be different according to different models of the filter 20, and the preset value may be adjusted in the controller 200.
The pressure difference-life curve may be calculated according to a functional relationship or may be obtained according to an empirical relationship, which is not limited herein.
When the fuel filter is used, as shown in fig. 2, when the local communication signal is poor and data transmission cannot be realized, the controller 200 calculates the pressure difference Δ P between the front and the rear of the fuel filter element and a standard pressure difference-life curve preset in the controller 200, pre-judges the service life of the fuel filter 20, and sends the service life to the display screen to remind a customer of predicting the maintenance time.
When the local area communication signals are normal, as shown in fig. 3, when data transmission can be realized, each machine works for one hour, and sends the fuel pressure P1 before the fuel prefilter 21, the fuel pressure P2 before the fuel fine filtration, the fuel pressure P3 after the fuel fine filtration and the positioning dimension information to a manufacturer, and uploads the information to the big data cloud.
Taking a county as a unit, when the data of the complete maintenance period of the same machine type in one county is more than 10, analyzing the data, and correcting a preset pressure-life curve (a curve in fig. 3); when the deviation of the zone pressure-life curve is greater than 2 hours, the corrected pressure-life curve (curve b in fig. 3) is transmitted to the zone machine controller 200, and is corrected.
The controller 200 calculates the pressure difference Δ P between the front and the rear of the fuel filter element and the pressure difference-life curve (curve b in fig. 3) of the fuel filter element after correction in the controller 200, pre-judges the life of the fuel filter 20, and sends the pre-judged life to the display screen to remind the customer of predicting the maintenance time.
In a second aspect, embodiments provide a warning method for the fuel filter life warning system 10 of any one of the previous embodiments, including:
acquiring inlet and outlet pressures of the filter 20;
when the difference between the inlet pressure and the outlet pressure is greater than a preset value, the warning device 300 is controlled to prompt a user to replace the filter 20;
when the difference between the inlet pressure and the outlet pressure is less than or equal to a preset value, the remaining life of the filter 20 is calculated and the warning device 300 is controlled to notify the user.
Such an early warning method is simple and efficient, and can timely and accurately inform the customer of the maintenance of the filter 20.
In a third aspect, an embodiment provides an early warning device, which is used in the fuel filter life early warning system 10 in any one of the foregoing embodiments, and includes an obtaining module, a prompting module, and a notification module;
an acquisition module for acquiring inlet and outlet pressures of the filter 20;
a prompt module, configured to control the warning device 300 to prompt a user to replace the filter 20 when a difference between the inlet pressure and the outlet pressure is greater than a preset value;
and a notification module for calculating the remaining life of the filter 20 and controlling the warning device 300 to notify a user when the difference between the inlet pressure and the outlet pressure is less than or equal to a preset value.
The beneficial effects of the embodiment of the invention include, for example:
a fuel filter element life early warning system can monitor the service condition of a filter 20 in real time and can remind a client to replace the filter 20 or give early warning to inform the client to replace the filter 20. Specifically, the method comprises the following steps:
1. according to the local fuel quality, an alarm threshold value can be set for each fuel filter pressure difference to give an alarm, and a user is reminded to maintain the corresponding fuel filter.
2. When the regional communication signal is poor and data transmission cannot be realized, the service life of the fuel filter 20 is judged in advance according to the front-back pressure difference of the fuel filter element and the preset fuel filter element pressure difference-service life curve in the controller 200, so that timely maintenance is facilitated.
3. The regional communication signals are normal, when data transmission can be achieved, the pressure and the service life of the fuel filter element of each machine are sent to a manufacturer big data cloud end, regional data are analyzed, a fuel filter element pressure difference-service life curve of the region is corrected, and the service life of the fuel filter 20 is judged in advance so as to be maintained in time.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The utility model provides a fuel filter life-span early warning system, its life-span warning that is used for the filter which characterized in that includes:
the pressure detection assembly, the controller and the warning device;
the pressure detection assembly and the warning device are electrically connected or communicated with the controller;
the pressure detection assembly is used for respectively measuring the inlet pressure and the outlet pressure of the filter, and the controller is used for controlling the warning device to prompt a user to replace the filter when the difference value of the inlet pressure and the outlet pressure is larger than a preset value, and is used for calculating the residual service life of the filter and controlling the warning device to inform the user when the difference value of the inlet pressure and the outlet pressure is smaller than or equal to the preset value.
2. The fuel filter life warning system of claim 1, wherein:
the filter comprises a fuel prefilter and a fuel fine filter; the difference value between the inlet pressure and the outlet pressure of the filter is a first difference value between the inlet pressure and the outlet pressure of the fuel prefilter or a second difference value between the inlet pressure and the outlet pressure of the fuel fine filter.
3. The fuel filter life warning system of claim 2, wherein:
the difference value between the inlet pressure and the outlet pressure of the filter is the difference value between the inlet pressure of the fuel prefilter and the outlet pressure of the fuel fine filter;
or the difference between the inlet pressure and the outlet pressure of the filter is the sum of the first difference and the second difference.
4. The fuel filter life warning system of claim 3, wherein:
the pressure detection assembly comprises a first sensor, a second sensor and a third sensor which are all connected with the controller;
the first sensor, the pre-filter, the second sensor, the fine filter and the third sensor are sequentially arranged on an oil pipe;
the first sensor is used for measuring the pressure at the inlet of the pre-filter, the second sensor is used for measuring the pressure at the outlet of the pre-filter and measuring the pressure at the inlet of the fine filter, and the third sensor is used for measuring the pressure at the outlet of the fine filter.
5. The fuel filter life warning system of any one of claims 1-4, wherein:
and the controller is used for calculating the residual service life of the filter according to the corresponding relation between the difference value and the residual service life and controlling a warning device to inform a user when the difference value between the inlet pressure and the outlet pressure of the filter is smaller than or equal to a preset value.
6. The fuel filter life warning system of claim 5, wherein:
the warning device comprises a human-computer interface, and the human-computer interface is used for prompting a user to replace the filter or prompting the residual service life of the filter.
7. The fuel filter life warning system of claim 6, wherein:
the human-computer interface comprises a display and an audible and visual alarm, the display displays the warning information sent by the controller, and the audible and visual alarm sends audible and visual warnings.
8. The fuel filter life warning system of claim 5, wherein:
the cloud server is communicated with the controller and stores a standard pressure difference-life curve;
the cloud server is used for collecting maintenance data of other filters which are located in the same area as the filter and have the same model, and correcting the standard pressure difference-life curve according to the maintenance data to obtain an actual pressure difference-life curve;
and the controller is used for determining the corresponding relation between the difference value and the residual life according to an actual pressure difference-life curve.
9. A warning method for the fuel filter life warning system of any one of claims 1 to 8, comprising:
acquiring inlet pressure and outlet pressure of a filter;
when the difference value between the inlet pressure and the outlet pressure is larger than the preset value, controlling the warning device to prompt a user to replace the filter;
and when the difference value between the inlet pressure and the outlet pressure is smaller than or equal to a preset value, calculating the residual service life of the filter and controlling a warning device to inform a user.
10. An early warning device for the fuel filter life early warning system of any one of claims 1 to 8, comprising an acquisition module, a prompt module and a notification module;
the acquisition module is used for acquiring the inlet pressure and the outlet pressure of the filter;
the prompting module is used for controlling the warning device to prompt a user to replace the filter when the difference value between the inlet pressure and the outlet pressure is larger than the preset value;
and the informing module is used for calculating the residual service life of the filter and controlling the warning device to inform a user when the difference value between the inlet pressure and the outlet pressure is less than or equal to a preset value.
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| CN201911248589.6A CN110953103A (en) | 2019-12-09 | 2019-12-09 | Fuel oil filter service life early warning system, early warning method and early warning device |
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| CN201911248589.6A CN110953103A (en) | 2019-12-09 | 2019-12-09 | Fuel oil filter service life early warning system, early warning method and early warning device |
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| CN112145291A (en) * | 2020-09-08 | 2020-12-29 | 潍柴重机股份有限公司 | Filter element maintenance prompting method based on front-back pressure difference trend of filter |
| CN113295596A (en) * | 2021-06-09 | 2021-08-24 | 瑞安市力硕汽车部件有限公司 | Diesel oil filter and method for detecting filter element filtering capacity and service life of diesel oil filter |
| CN113944557A (en) * | 2021-11-22 | 2022-01-18 | 潍柴动力股份有限公司 | Fuel filter control method, device, apparatus, readable medium and program product |
| CN114159858A (en) * | 2021-12-27 | 2022-03-11 | 江苏富淼科技股份有限公司 | Filtering system and early warning method thereof |
| WO2022169605A1 (en) * | 2021-02-02 | 2022-08-11 | Caterpillar Inc. | Method and system for fuel filter monitoring |
| CN115146451A (en) * | 2022-06-15 | 2022-10-04 | 九江七所精密机电科技有限公司 | Method and device for predicting residual life of oil filter element |
| CN115145217A (en) * | 2022-06-20 | 2022-10-04 | 中国第一汽车股份有限公司 | Oil filter screen state real-time detection method, system, equipment, storage medium and automobile |
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