CN110761909B - Fault emergency processing system and method - Google Patents
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- CN110761909B CN110761909B CN201911020145.7A CN201911020145A CN110761909B CN 110761909 B CN110761909 B CN 110761909B CN 201911020145 A CN201911020145 A CN 201911020145A CN 110761909 B CN110761909 B CN 110761909B
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Images
Classifications
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
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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
- F02D2041/226—Fail safe control for fuel injection pump
-
- 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
- F02D2041/228—Warning displays
-
- 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 a fuel pump fault emergency processing system and a method, wherein the system comprises: the oil quantity measuring device is used for identifying the oil surface object and the depth of field of the oil surface object in the customized processing image based on a preset oil body gray level threshold value, and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object, the cross section area of the oil storage tank and the height of the oil storage tank; the mileage analysis equipment is connected with the oil quantity measuring equipment and is used for determining the subsequent driving mileage of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank; and the liquid crystal display device is used for receiving and displaying the subsequent driving range of the automobile. The fuel pump fault emergency processing system and the method are effective in operation and convenient to use. Because a reliable fault detection mechanism and a corresponding fault coping scheme can be arranged at the rear end of the fuel pump, a driver can conveniently customize the own stop position in time, and the vehicle is prevented from being anchored on the road.
Description
Technical Field
The invention relates to the field of automobile fault detection, in particular to a fault emergency processing system and a fault emergency processing method.
Background
The automobile failure refers to the phenomenon that the automobile system, assembly and parts or the whole body loses the specified functions. The method is divided into four categories according to the severity and relevance of the influence of the fault on the performance of the automobile: fatal failure refers to a failure that endangers driving safety, causes casualties, causes scrapping of main assemblies and significant economic loss or seriously harms the surrounding environment. The serious fault refers to a fault which affects the driving safety, causes serious damage to main parts and assemblies, or has remarkably reduced performance and cannot be eliminated by easily replaced parts and vehicle-mounted tools in a short time (about 30 minutes). The general fault can guide the automobile to stop running and reduce the performance, but generally does not cause the damage of parts and assemblies, and can be eliminated in a short time (about 30 minutes) by replacing wearing parts and vehicle-mounted tools. Slight faults generally do not cause the automobile to stop running and performance to be reduced, parts do not need to be replaced, and the faults can be easily eliminated (5 minutes) by using a vehicle-mounted tool.
Structural faults due to structural problems can be classified according to the fault cause; violating manufacturing process or manufacturing faults caused by process imperfections; faults resulting from violation of the use regulations, such as overloading, out of specification fuel, technical maintenance being done in time, etc. The classification into progressive faults and catastrophic faults is based on the nature and predicted likelihood of the fault. The former technical condition parameters are smoothly changed, so that the technical condition parameters can be predicted and prevented by timely technical maintenance; the latter can occur at any time and is difficult to predict. The fault mileage is divided into short-mileage fault, medium-mileage fault and long-mileage fault.
Disclosure of Invention
In order to solve the technical problems in the related field, the invention provides a fuel pump fault emergency processing system which can timely detect the mileage which can still maintain the extracted fuel quantity at the rear end of a fuel pump when the fuel pump has a fault, thereby providing important driving reference data for automobile users; and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object in the oil storage tank, the cross section area of the oil storage tank and the height of the oil storage tank, and further determining the subsequent driving range of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank.
According to an aspect of the present invention, there is provided a fuel pump fault emergency handling system, the system comprising:
the miniature camera shooting structure is arranged in an oil storage tank at the rear end of the fuel pump and is used for executing camera shooting operation on the internal environment of the oil storage tank so as to obtain a real-time internal image;
the pressure regulator is used for pumping the oil body in the oil storage tank at a preset pressure so as to convey the oil body to the oil distribution pipe;
the oil distribution pipe is used for conveying the pressurized oil body to the oil injection nozzle so as to inject the oil body in the combustion chamber and combust the injected oil body to provide power;
the gamma correction equipment is connected with the miniature camera shooting structure and used for receiving the instant internal image and carrying out gamma correction on the instant internal image so as to obtain a gamma correction image;
the band-pass filtering device is connected with the gamma correction device and used for executing band-pass filtering processing on the gamma correction image based on the maximum amplitude of noise in the received gamma correction image so as to obtain a corresponding band-pass filtering image, wherein the smaller the maximum amplitude of noise is, the smaller the amplitude of the band-pass filtering processing on the gamma correction image is;
the bilinear interpolation device is connected with the band-pass filtering device and used for executing bilinear interpolation processing on the received band-pass filtering image so as to obtain a bilinear interpolation image;
the oil quantity measuring device is connected with the bilinear interpolation device and used for identifying an oil surface object and the depth of field of the oil surface object in the bilinear interpolation image based on a preset oil body gray level threshold value and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object, the cross section area of the oil storage tank and the height of the oil storage tank;
the mileage analysis equipment is connected with the oil quantity measuring equipment and is used for determining the subsequent driving mileage of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank;
and the liquid crystal display device is arranged in an instrument panel of the automobile, is connected with the mileage analysis device and is used for receiving and displaying the subsequent driving mileage of the automobile.
According to another aspect of the present invention, there is also provided a fuel pump fault emergency processing method, the method including: the fuel pump fault emergency processing system is used for timely detecting the mileage which can be maintained by the extracted fuel quantity at the rear end of the fuel pump when the fuel pump has a fault.
The fuel pump fault emergency processing system and the method are effective in operation and convenient to use. Because a reliable fault detection mechanism and a corresponding fault coping scheme can be arranged at the rear end of the fuel pump, a driver can conveniently customize the own stop position in time, and the vehicle is prevented from being anchored on the road.
The invention has at least the following two key points:
(1) when the fuel pump fails, the mileage which can still maintain the extracted fuel quantity at the rear end of the fuel pump is timely detected, so that important driving reference data are provided for automobile users;
(2) and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object in the oil storage tank, the cross section area of the oil storage tank and the height of the oil storage tank, and further determining the subsequent driving range of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank.
Drawings
Embodiments of the invention will now be described with reference to the accompanying drawings, in which:
fig. 1 is a view showing an external configuration of a fuel pump to which a fuel pump failure emergency processing system according to an embodiment of the present invention is applied.
Detailed Description
Embodiments of the fuel pump fault emergency treatment system and method of the present invention will be described in detail below with reference to the accompanying drawings.
Fuel pumps are a term of art in the automotive industry. The fuel injection system is one of basic components of a fuel injection system of an electronic fuel injection automobile, is positioned in a fuel tank of the automobile, a fuel pump works during starting and running of an engine, and if the engine stops and an ignition switch is still in an ON state, a HFM-SFI control module turns off the power supply of the fuel pump so as to avoid accidental ignition.
The fuel pump is used for sucking fuel from the fuel tank, pressurizing the fuel and then delivering the fuel to the fuel supply pipe, and the fuel pump is matched with the fuel pressure regulator to establish certain fuel pressure.
The fuel pump conveys high-pressure fuel to the fuel distribution pipe, and continuous fuel supply to the fuel injection nozzle is guaranteed.
The fuel pump is composed of an electric motor, a pressure limiter and an inspection valve, the electric motor actually works in fuel in a pump shell, worry is avoided, the fuel can lubricate and cool the fuel motor because nothing can ignite is arranged in the shell, the inspection valve is arranged at an oil outlet, and the pressure limiter is positioned on the pressure side of the pump shell and is provided with a channel leading to an oil inlet.
The ZYB type ignition pressurization fuel pump is suitable for conveying media such as diesel oil, heavy oil, residual oil, fuel oil and the like, is particularly suitable for a fuel pump of a combustor in a mixing station of road and bridge engineering, and is an ideal product for replacing imported products. The ZYB type booster fuel pump is not suitable for delivering highly volatile or low flash point liquids such as ammonia, benzene, etc.
When the rotor disk rotates, the rollers are pressed outwards by centrifugal force, the rotor rotates like a rotating oil seal, the pump acts to suck fuel from the inlet and force it into the fuel system from the outlet, when the pump is switched off, the check valve of the outlet closes, preventing the fuel from flowing back to the tank through the fuel pump, the fuel line pressure maintained by the check valve being called "residual pressure".
The maximum pump pressure of the fuel pump is dependent upon the criteria of a pressure limiter that will open a bypass path to allow fuel to flow back to the fuel pump inlet if the fuel pump pressure exceeds a predetermined pressure limit.
At present, a fuel pump is a vulnerable part of a vehicle, once the fuel pump fails, the distance that the vehicle can continue to run is very limited, and if the vehicle is not known, the vehicle still runs according to the previous running mode, so that the vehicle is likely to be anchored on a road instead of a parking space, and various troubles such as a congested road, a trailer and the like are brought to a driver. However, at present, only a fuel tank state detection mechanism is available, and a state detection mechanism related to the fuel pump is lacked.
In order to overcome the defects, the invention builds a fuel pump fault emergency processing system and a fuel pump fault emergency processing method, and can effectively solve the corresponding technical problems.
Fig. 1 is a view showing an external configuration of a fuel pump to which a fuel pump failure emergency processing system according to an embodiment of the present invention is applied.
The fuel pump fault emergency processing system shown according to the embodiment of the invention comprises:
the miniature camera shooting structure is arranged in an oil storage tank at the rear end of the fuel pump and is used for executing camera shooting operation on the internal environment of the oil storage tank so as to obtain a real-time internal image;
the pressure regulator is used for pumping the oil body in the oil storage tank at a preset pressure so as to convey the oil body to the oil distribution pipe;
the oil distribution pipe is used for conveying the pressurized oil body to the oil injection nozzle so as to inject the oil body in the combustion chamber and combust the injected oil body to provide power;
the gamma correction equipment is connected with the miniature camera shooting structure and used for receiving the instant internal image and carrying out gamma correction on the instant internal image so as to obtain a gamma correction image;
the band-pass filtering device is connected with the gamma correction device and used for executing band-pass filtering processing on the gamma correction image based on the maximum amplitude of noise in the received gamma correction image so as to obtain a corresponding band-pass filtering image, wherein the smaller the maximum amplitude of noise is, the smaller the amplitude of the band-pass filtering processing on the gamma correction image is;
the bilinear interpolation device is connected with the band-pass filtering device and used for executing bilinear interpolation processing on the received band-pass filtering image so as to obtain a bilinear interpolation image;
the oil quantity measuring device is connected with the bilinear interpolation device and used for identifying an oil surface object and the depth of field of the oil surface object in the bilinear interpolation image based on a preset oil body gray level threshold value and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object, the cross section area of the oil storage tank and the height of the oil storage tank;
the mileage analysis equipment is connected with the oil quantity measuring equipment and is used for determining the subsequent driving mileage of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank;
the liquid crystal display device is arranged in an instrument panel of the automobile, is connected with the mileage analysis device and is used for receiving and displaying the subsequent driving mileage of the automobile;
wherein, calculating the remaining oil volume of the oil storage tank according to the depth of field of the oil level object, the cross-sectional area of the oil storage tank and the height of the oil storage tank comprises: multiplying the difference obtained by subtracting the depth of field of the oil surface object from the height of the oil storage tank by the cross-sectional area of the oil storage tank to obtain the remaining amount of oil in the oil storage tank.
Next, a further description will be made of a specific structure of the fuel pump failure emergency processing system of the present invention.
In the fuel pump trouble emergency processing system:
the miniature camera shooting structure comprises electronic eye acquisition equipment, gradient sharpening filtering equipment, customized filtering equipment and index enhancement equipment.
In the fuel pump trouble emergency processing system:
the electronic eye acquisition equipment is used for carrying out shooting actions on scenes in the visual field of the electronic eye acquisition equipment so as to obtain corresponding current acquisition images.
In the fuel pump trouble emergency processing system:
the gradient sharpening filtering device is connected with the electronic eye collecting device and is used for executing a gradient sharpening filtering action on the received current collected image so as to obtain a corresponding gradient sharpening filtering image.
In the fuel pump trouble emergency processing system:
the customized filtering device is connected with the gradient sharpening filtering device and is used for executing wavelet filtering processing on the received gradient sharpening filtering image to obtain a corresponding customized filtering image, wherein the dimension of a wavelet base adopted for executing the wavelet filtering processing is in direct proportion to the number of noise types in the gradient sharpening filtering image.
In the fuel pump trouble emergency processing system:
the trap filtering device is connected with the customized filtering device and is used for executing trap filtering processing on the received customized filtering image to obtain a corresponding trap filtering image.
In the fuel pump trouble emergency processing system:
the exponential enhancement device is connected with the trap filtering device and is used for carrying out image enhancement processing based on exponential transformation on the received trap filtering image so as to obtain and output a corresponding instant internal image.
In the fuel pump trouble emergency processing system:
the customized filtering device comprises a signal receiving sub-device, a number analysis sub-device, a dimension selection sub-device, a filtering execution sub-device and a signal output sub-device;
wherein, in the customized filtering device, the signal receiving sub-device, the number analysis sub-device, the dimension selection sub-device, the filtering performing sub-device, and the signal output sub-device are sequentially connected.
Meanwhile, in order to overcome the defects, the invention also provides a fuel pump fault emergency processing method, which comprises the following steps: the fuel pump fault emergency processing system is used for timely detecting the mileage which can be maintained by the extracted fuel quantity at the rear end of the fuel pump when the fuel pump has a fault.
In addition, image filtering, namely, suppressing the noise of the target image under the condition of keeping the detail features of the image as much as possible, is an indispensable operation in image preprocessing, and the effectiveness and reliability of subsequent image processing and analysis are directly affected by the quality of the processing effect.
Due to the imperfections of the imaging system, the transmission medium, and the recording device, the digital images are often contaminated by various noises during the formation, transmission, and recording processes thereof. In addition, noise may also be introduced into the resulting image at some point in the image processing when the input image object is not as expected. These noises often appear as an isolated pixel or block of pixels on the image that causes a strong visual effect. In general, the noise signal is not correlated with the object to be studied-it appears in the form of useless information, disturbing the observable information of the image. For digital image signals, the noise table is more or less extreme values, and the extreme values act on the real gray values of image pixels through addition and subtraction to cause bright and dark point interference on the image, so that the image quality is greatly reduced, and the follow-up work of image restoration, segmentation, feature extraction, image identification and the like is influenced. Two basic issues must be considered to construct an effective noise suppression filter: the noise in the target and the background can be effectively removed; meanwhile, the shape, the size and the specific geometric and topological structure characteristics of the image target can be well protected.
One of the commonly used image filtering modes is a non-linear filter, generally speaking, when the signal spectrum and the noise spectrum are mixed or when the signal contains non-superimposed noise, such as noise caused by system nonlinearity or the presence of non-gaussian noise, etc.), the conventional linear filtering techniques, such as fourier transform, while filtering out noise, always blur the image details (such as edges, etc.) in some way, thereby causing the positioning accuracy of the image linear features and the extractability of the features to be reduced. The nonlinear filter is based on a nonlinear mapping relation of an input signal, a specific noise can be mapped to be zero approximately, the main characteristic of the signal is reserved, and therefore the nonlinear filter can overcome the defects of the linear filter to a certain extent.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc. Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (9)
1. A fuel pump fault emergency processing system, comprising:
an oil storage tank for storing the amount of oil pumped by the fuel pump;
the miniature camera shooting structure is arranged in an oil storage tank at the rear end of the fuel pump and is used for executing camera shooting operation on the internal environment of the oil storage tank so as to obtain a real-time internal image;
the pressure regulator is used for pumping the oil body in the oil storage tank at a preset pressure so as to convey the oil body to the oil distribution pipe;
the oil distribution pipe is used for conveying the pressurized oil body to the oil injection nozzle so as to inject the oil body in the combustion chamber and combust the injected oil body to provide power;
the gamma correction equipment is connected with the miniature camera shooting structure and used for receiving the instant internal image and carrying out gamma correction on the instant internal image so as to obtain a gamma correction image;
the band-pass filtering device is connected with the gamma correction device and used for executing band-pass filtering processing on the gamma correction image based on the maximum amplitude of noise in the received gamma correction image so as to obtain a corresponding band-pass filtering image, wherein the smaller the maximum amplitude of noise is, the smaller the amplitude of the band-pass filtering processing on the gamma correction image is;
the bilinear interpolation device is connected with the band-pass filtering device and used for executing bilinear interpolation processing on the received band-pass filtering image so as to obtain a bilinear interpolation image;
the oil quantity measuring device is connected with the bilinear interpolation device and used for identifying an oil surface object and the depth of field of the oil surface object in the bilinear interpolation image based on a preset oil body gray level threshold value and calculating the residual oil quantity of the oil storage tank according to the depth of field of the oil surface object, the cross section area of the oil storage tank and the height of the oil storage tank;
the mileage analysis equipment is connected with the oil quantity measuring equipment and is used for determining the subsequent driving mileage of the automobile based on the average oil consumption per hundred kilometers of the automobile and the residual oil quantity of the oil storage tank;
the liquid crystal display device is arranged in an instrument panel of the automobile, is connected with the mileage analysis device and is used for receiving and displaying the subsequent driving mileage of the automobile;
wherein, calculating the remaining oil volume of the oil storage tank according to the depth of field of the oil level object, the cross-sectional area of the oil storage tank and the height of the oil storage tank comprises: multiplying the difference obtained by subtracting the depth of field of the oil surface object from the height of the oil storage tank by the cross-sectional area of the oil storage tank to obtain the remaining amount of oil in the oil storage tank.
2. The fuel pump fault emergency processing system of claim 1, wherein:
the miniature camera shooting structure comprises electronic eye acquisition equipment, gradient sharpening filtering equipment, customized filtering equipment and index enhancement equipment.
3. The fuel pump fault emergency processing system of claim 2, wherein:
the electronic eye acquisition equipment is used for carrying out shooting actions on scenes in the visual field of the electronic eye acquisition equipment so as to obtain corresponding current acquisition images.
4. The fuel pump fault emergency processing system of claim 3, wherein:
the gradient sharpening filtering device is connected with the electronic eye collecting device and is used for executing a gradient sharpening filtering action on the received current collected image so as to obtain a corresponding gradient sharpening filtering image.
5. The fuel pump fault emergency processing system of claim 4, wherein:
the customized filtering device is connected with the gradient sharpening filtering device and is used for executing wavelet filtering processing on the received gradient sharpening filtering image to obtain a corresponding customized filtering image, wherein the dimension of a wavelet base adopted for executing the wavelet filtering processing is in direct proportion to the number of noise types in the gradient sharpening filtering image.
6. The fuel pump fault emergency processing system of claim 5, wherein:
the customized filtering device is connected with the trap filtering device and is used for executing trap filtering processing on the received customized filtering image to obtain a corresponding trap filtering image.
7. The fuel pump fault emergency processing system of claim 6, wherein:
the exponential enhancement device is connected with the trap filtering device and is used for carrying out image enhancement processing based on exponential transformation on the received trap filtering image so as to obtain and output a corresponding instant internal image.
8. The fuel pump fault emergency processing system of claim 7, wherein:
the customized filtering device comprises a signal receiving sub-device, a number analysis sub-device, a dimension selection sub-device, a filtering execution sub-device and a signal output sub-device;
wherein, in the customized filtering device, the signal receiving sub-device, the number analysis sub-device, the dimension selection sub-device, the filtering performing sub-device, and the signal output sub-device are sequentially connected.
9. A fuel pump fault emergency processing method, the method comprising: use of a fuel pump failure emergency system according to any of claims 1 to 8 to ascertain in time when a fuel pump fails that a range is still maintained for a known amount of fuel drawn at the rear end of the fuel pump.
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| CN201911020145.7A CN110761909B (en) | 2019-10-25 | 2019-10-25 | Fault emergency processing system and method |
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