CN113738508B - Method, device and equipment for monitoring abnormal oil consumption and readable storage medium - Google Patents
Method, device and equipment for monitoring abnormal oil consumption and readable storage medium Download PDFInfo
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- CN113738508B CN113738508B CN202111014545.4A CN202111014545A CN113738508B CN 113738508 B CN113738508 B CN 113738508B CN 202111014545 A CN202111014545 A CN 202111014545A CN 113738508 B CN113738508 B CN 113738508B
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 238000012544 monitoring process Methods 0.000 title claims abstract description 35
- 230000002159 abnormal effect Effects 0.000 title claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 219
- 230000009471 action Effects 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims description 23
- 230000005856 abnormality Effects 0.000 claims description 20
- 230000000670 limiting effect Effects 0.000 claims description 10
- 238000012806 monitoring device Methods 0.000 claims description 8
- 238000002347 injection Methods 0.000 abstract description 14
- 239000007924 injection Substances 0.000 abstract description 14
- 230000008569 process Effects 0.000 abstract description 12
- 239000003921 oil Substances 0.000 description 39
- 239000002828 fuel tank Substances 0.000 description 6
- 239000003502 gasoline Substances 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000003745 diagnosis Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000006870 function Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
- F02B77/085—Safety, indicating, or supervising devices with sensors measuring combustion processes, e.g. knocking, pressure, ionization, combustion flame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B77/00—Component parts, details or accessories, not otherwise provided for
- F02B77/08—Safety, indicating, or supervising devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D45/00—Electrical control not provided for in groups F02D41/00 - F02D43/00
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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
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention provides a method, a device and equipment for monitoring abnormal oil consumption and a readable storage medium, wherein the method for monitoring the abnormal oil consumption comprises the following steps: acquiring the actual fuel consumption and the theoretical fuel consumption within a fixed time; subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating the ratio of the difference value to the theoretical fuel consumption; determining a target value range in which the ratio is located; and carrying out corresponding control action according to the target numerical range. The invention can timely monitor the mechanical fault of hardware facilities in the electric control fuel injection system, give corresponding fault early warning and ensure the safety of the vehicle in the running process.
Description
Technical Field
The invention relates to the field of engine fuel system fault diagnosis, in particular to a method, a device and equipment for monitoring abnormal fuel consumption and a readable storage medium.
Background
The electronic control fuel injection system is an advanced fuel injection device which is adopted by a gasoline engine without a carburetor, and an electronic control gasoline injection technology is popularized from a gasoline engine. The electric control fuel injection system mainly comprises a fuel supply system, namely an oil way, an air supply system, namely an air way, and a control system, namely an electric circuit. When the fuel supply system works, fuel is pumped out from the fuel tank by the electric gasoline pump, impurities are filtered by the gasoline filter and then are conveyed to a fuel distribution pipe, and the oil pressure is automatically regulated to a specified value by the oil pressure regulator arranged on the fuel distribution pipe according to the pressure in an intake manifold and then is distributed to each fuel injector by the oil delivery pipe. The fuel injector injects proper fuel into the intake manifold according to the control signal sent by the electric control unit. When the pressure of the oil way exceeds the specified value, the gasoline pressure regulator works to make the excessive fuel oil return to the oil tank, so that the injection oil pressure of the fuel injector is unchanged. When the temperature of the cooling water is lower than the working temperature of the engine, the cold-start fuel injector works to inject fuel into the intake manifold so as to improve the low-temperature starting performance of the engine.
During the running process of the vehicle, if the electronic control fuel injection system has faults, the problems of difficult starting of the engine, engine stalling, rough idling or surging of the engine, poor high-speed performance of the vehicle, overlarge fuel consumption of the vehicle and the like can be caused, so the fault diagnosis of the electronic control fuel injection system can enable the dynamic property, the economical efficiency, the exhaust gas purification property and the like of the engine to be in the optimal state. In the existing fault diagnosis of the electronic control fuel injection system, various sensors, an electronic controller and an actuator in the electronic control fuel injection system are monitored mainly based on an electrical principle, and the fault diagnosis can be carried out when the control system has faults, such as general ground faults or sensor faults, and corresponding fault early warning can be given to a user to guide after-sales maintenance when relevant faults are monitored. However, if a mechanical failure occurs in the fuel supply system of the electronic control fuel injection system, it is difficult to monitor and give corresponding failure early warning, such as oil leakage of the fuel tank, damage of a fuel tank segment pipeline, etc., and if a mechanical failure occurs but the mechanical failure cannot be monitored in time and the corresponding failure early warning is given, there is a certain risk in the vehicle driving process.
Disclosure of Invention
The invention mainly aims to provide a method, a device and equipment for monitoring abnormal oil consumption and a readable storage medium, and aims to solve the technical problem that an oil path in an electronic control fuel injection system cannot be monitored in time when mechanical failure occurs.
In a first aspect, the present invention provides a method for monitoring abnormal fuel consumption, including the following steps:
acquiring the actual fuel consumption and the theoretical fuel consumption within a fixed time;
subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating a ratio of the difference value to the theoretical fuel consumption;
determining a target value range in which the ratio is located;
and carrying out corresponding control action according to the target numerical range.
Optionally, the step of performing a corresponding control action according to the target numerical range includes:
and if the target numerical range is within the first numerical range, outputting a fault early warning prompt.
Optionally, the step of performing a corresponding control action according to the target numerical range includes:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
Optionally, the step of performing a corresponding control action according to the target numerical range includes:
and if the target numerical range is in a third numerical range, outputting a fault early warning prompt and returning the engine to an idling state, wherein the lower limit value of the third numerical range is greater than the upper limit value of the second numerical range.
Optionally, the step of obtaining the actual fuel consumption and the theoretical fuel consumption within the fixed time period includes:
calculating the height value of the liquid level of the oil tank in a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption in the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the engine cylinders, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
In a second aspect, the present invention further provides a monitoring apparatus for abnormal fuel consumption, including:
the acquisition module is used for acquiring the actual fuel consumption and the theoretical fuel consumption within a fixed time length;
the calculation module is used for subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value and calculating the ratio of the difference value to the theoretical fuel consumption;
the judging module is used for determining a target numerical range in which the ratio is positioned;
and the control module is used for carrying out corresponding control action according to the target numerical range.
Optionally, the control module is configured to perform a corresponding control action according to the target numerical range, and is configured to:
and if the target numerical range is within the first numerical range, outputting a fault early warning prompt.
Optionally, the control module is configured to perform a corresponding control action according to the target numerical range, and is configured to:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
Optionally, the control module is configured to perform a corresponding control action according to the target numerical range, and is configured to:
and if the target numerical range is in a third numerical range, outputting a fault early warning prompt and returning the engine to an idling state, wherein the lower limit value of the third numerical range is greater than the upper limit value of the second numerical range.
Optionally, the obtaining module is configured to obtain an actual fuel consumption and a theoretical fuel consumption within a fixed duration, and the obtaining module is configured to:
calculating the height value of the liquid level of the oil tank within a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption within the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the engine cylinders, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
In a third aspect, the present invention further provides a monitoring apparatus for abnormal fuel consumption, where the monitoring apparatus for abnormal fuel consumption includes a processor, a memory, and a monitoring program for abnormal fuel consumption, which is stored in the memory and can be executed by the processor, and when the monitoring program for abnormal fuel consumption is executed by the processor, the steps of the monitoring method for abnormal fuel consumption are implemented.
In a fourth aspect, the present invention further provides a readable storage medium, where the readable storage medium stores a fuel consumption abnormality monitoring program, where the fuel consumption abnormality monitoring program, when executed by a processor, implements the steps of the fuel consumption abnormality monitoring method as described above.
The method comprises the steps of obtaining the actual fuel consumption and the theoretical fuel consumption within a fixed time; subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating the ratio of the difference value to the theoretical fuel consumption; determining a target value range in which the ratio is located; and carrying out corresponding control action according to the target numerical range. The invention monitors the difference value between the actual fuel consumption and the theoretical fuel consumption within a fixed time length in real time, can judge whether the fuel supply system of the vehicle has faults or not according to the difference value, gives corresponding early warning to different fault grades or has corresponding limiting action to the engine so as to monitor the mechanical fault of hardware facilities in the electric control fuel injection system in time and give corresponding fault early warning to ensure the safety of the vehicle in the driving process.
Drawings
Fig. 1 is a schematic diagram of a hardware structure of an abnormal fuel consumption monitoring device according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart illustrating an embodiment of a monitoring method for abnormal fuel consumption according to the present invention;
fig. 3 is a functional module schematic diagram of an embodiment of the abnormal fuel consumption monitoring device according to the present invention.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
In a first aspect, an embodiment of the present invention provides an oil consumption abnormality monitoring apparatus.
Referring to fig. 1, fig. 1 is a schematic diagram of a hardware structure of an oil consumption abnormality monitoring device according to an embodiment of the present invention. In this embodiment of the present invention, the monitoring device for abnormal fuel consumption may include a processor 1001 (for example, a Central Processing Unit, CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005. The communication bus 1002 is used for realizing connection communication among the components; the user interface 1003 may include a Display screen (Display), an input unit such as a Keyboard (Keyboard); the network interface 1004 may optionally include a standard wired interface, a WIreless interface (e.g., a WI-FI interface, WI-FI interface); the memory 1005 may be a Random Access Memory (RAM) or a non-volatile memory (non-volatile memory), such as a magnetic disk memory, and the memory 1005 may optionally be a storage device independent of the processor 1001. Those skilled in the art will appreciate that the hardware configuration depicted in FIG. 1 is not intended to be limiting of the present invention, and may include more or less components than those shown, or some components in combination, or a different arrangement of components.
With continued reference to fig. 1, the memory 1005 of fig. 1, which is a computer storage medium, may include an operating system, a network communication module, a user interface module, and a fuel consumption abnormality monitoring program. The processor 1001 may call the oil consumption abnormality monitoring program stored in the memory 1005, and execute the oil consumption abnormality monitoring method provided by the embodiment of the present invention.
In a second aspect, an embodiment of the present invention provides a method for monitoring abnormal fuel consumption.
Referring to fig. 2, fig. 2 is a flowchart illustrating an embodiment of a monitoring method for abnormal fuel consumption according to the present invention.
In an embodiment of the monitoring method for abnormal fuel consumption, the monitoring method for abnormal fuel consumption includes:
step S10, obtaining the actual fuel consumption and the theoretical fuel consumption within a fixed time length;
in this embodiment, the actual fuel consumption of the fuel supply system in a fixed time period and the theoretical fuel consumption calculated based on the theoretical formula and the calibration value are obtained, and after the actual consumption of the fuel in the fuel supply system in the fixed time period and the theoretical consumption calculated based on the theoretical formula are obtained, further calculation may be performed according to the actual fuel consumption and the theoretical fuel consumption. The actual fuel consumption and the theoretical fuel consumption within the fixed duration are obtained because the obtained actual fuel consumption and the theoretical fuel consumption have a certain deviation due to road conditions or accuracy errors of vehicle sensors and the like in the driving process of a vehicle, and fluctuate within a small range of time, and only when the deviation between the actual fuel consumption and the theoretical fuel consumption is accumulated for a preset fixed duration, the fluctuation of the deviation within the small range can be eliminated.
Further, in an embodiment, the step of obtaining the actual fuel consumption and the theoretical fuel consumption within the fixed time period includes:
calculating the height value of the liquid level of the oil tank in a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption in the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the cylinders of the engine, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
In this embodiment, a fuel level sensor is mounted in the fuel tankThe fuel level height at certain fixed moment in the fuel tank can be confirmed according to fuel level sensor to can find the different sectional areas of corresponding place oil tank liquid level based on different fuel level heights, and establish the sectional area function that different oil tank liquid level heights correspond in view of the above, according to in the oil tank when certain fixed moment t1 the fuel level height h1 to and in the oil tank when last fixed moment t2 the fuel level height h2, according to the sectional area function and the liquid level height that different oil tank liquid level heights in fixed time of fixed moment t2 to this section of fixed time t1 correspond are the integral, if the integral is taken to the liquid level height
The fuel volume change over the fixed period of time t2 to t1 may be obtained, and the actual fuel consumption over the fixed period of time may be calculated based on the fuel volume change, wherein the fixed period of time is a calibration amount, and the fuel level height value in the integral calculation is obtained at a fixed frequency, which is also a calibration amount. Meanwhile, when the fuel liquid level height value in the fuel tank is obtained, the fuel tank can shake in the running process of a vehicle to cause certain fluctuation of the liquid level height, in order to eliminate the influence of the fluctuation on the obtained liquid level height value, the obtained liquid level height value needs to be subjected to filtering processing, and the average value of the height value corresponding to each signal in the fixed signal number of the obtained liquid level height sensor is obtained through the filtering processing and is used as the liquid level height value to be obtained; and the theoretical fuel consumption obtains the fuel consumption rate in the fixed time length according to a theoretical formula and a calibration value, and then the theoretical fuel consumption in the fixed time length is obtained through calculation according to the fuel consumption rate integral. The fuel consumption rate is obtained based on the engine speed, the circulating fuel supply quantity and the number of the engine cylinders, and the engine speed and the circulating fuel supply quantity are changed in real time, so that the fuel consumption rate of the engine is obtained through fixed frequency so as to obtain a more accurate calculation value of the theoretical fuel consumption.
Step S20, subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating the ratio of the difference value to the theoretical fuel consumption;
in this embodiment, the difference of the fuel consumption in a fixed period of time may be obtained by subtracting the obtained theoretical fuel consumption from the obtained actual fuel consumption, and a ratio may be obtained based on the difference and the theoretical fuel consumption. Since the obtained actual fuel consumption and the theoretical fuel consumption are both fuel variation amounts within a fixed time period, the ratio is updated while the fuel level height values at two fixed times are obtained in real time at a fixed frequency to update the obtained actual fuel consumption value, and the theoretical fuel consumption rate is obtained in real time at a fixed frequency to update the obtained theoretical fuel consumption value.
Step S30, determining a target numerical range in which the ratio is positioned;
in this embodiment, the determination of the target value range of the ratio calculated based on the difference between the actual fuel consumption and the theoretical fuel consumption and the fuel consumption is to obtain a grade range of the deviation of the fuel consumption based on the target value range, and monitor whether an oil path in a fuel supply system of the current vehicle is in a mechanical failure state, for example, whether there are problems of oil leakage of an oil tank, pipeline breakage of an oil tank section, and the like, according to the grade range of the deviation.
And S40, performing corresponding control action according to the target numerical range.
In this embodiment, according to the target value range where the ratio is located, the fault level of the oil path in the fuel supply system of the current vehicle may be monitored, and the engine may be correspondingly controlled according to the fault level of the fuel supply system corresponding to the target value range, so as to prevent oil path faults, such as oil leakage from an oil tank, pipeline damage to the oil tank section, and the like, from occurring when the vehicle and the user are in a dangerous condition during driving.
Further, in an embodiment, the step of performing the corresponding control action according to the target value range includes:
and if the target numerical range is within a first numerical range, outputting a fault early warning prompt.
In this embodiment, if the target numerical range is within the first numerical range, a warning of a fault warning is output. When the ratio is in the first numerical range, the deviation value represents that the fuel consumption deviation value of the fuel supply system in the fixed time exceeds the deviation value range of normal calculation, so that the fuel supply system possibly has certain faults and needs to be noticed.
Further, in an embodiment, the step of performing the corresponding control action according to the target value range includes:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
In this embodiment, if the target numerical range is within a second numerical range, a fault warning prompt is output, and the engine output torque is limited, where a lower limit of the second numerical range is greater than an upper limit of the first numerical range. When the ratio is in a second numerical value range, the fuel consumption deviation value of the fuel supply system in the fixed time exceeds a first numerical value range, namely an abnormal early warning deviation value range, so that the fuel supply system has serious faults and needs to be noticed, meanwhile, the fuel system faults have greater risks, so that the engine needs to be limited to operate, the torque output of the engine needs to be limited, when the torque output of the engine is limited, a user can not normally supply fuel when the fuel supply and gear shifting operation is performed, the user can use the vehicle but limit the speed of the vehicle, and meanwhile, the system needs to early warn the user that the fuel supply system has larger faults so as to ensure the driving safety of the vehicle.
Further, in an embodiment, the step of performing the corresponding control action according to the target numerical range includes:
and if the target numerical range is in a third numerical range, outputting a fault early warning prompt and returning the engine to an idling state, wherein the lower limit value of the third numerical range is greater than the upper limit value of the second numerical range.
In this embodiment, if the target numerical range is within a third numerical range, a warning of a fault warning is output, and the engine is suddenly returned to an idle state, where a lower limit of the third numerical range is greater than an upper limit of the second numerical range. When the ratio is in a third numerical range, the deviation value of the fuel consumption of the fuel supply system in the fixed time period exceeds a second numerical range, namely the deviation value range of abnormal early warning and engine torque output limiting is represented, so that the fuel supply system has very serious faults and needs after-sale maintenance, the fuel supply system of a user needs to be warned of very large faults, and meanwhile, the engine needs to be limited to operate because the faults at the moment have very large driving risks, so that the engine returns to an idling state suddenly, the vehicle cannot run normally and can slide.
In the embodiment, the actual fuel consumption and the theoretical fuel consumption within a fixed time length are obtained; subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating the ratio of the difference value to the theoretical fuel consumption; determining a target value range in which the ratio is located; and carrying out corresponding control action according to the target numerical range. The invention monitors the difference value of the actual fuel consumption and the theoretical fuel consumption in a fixed time period in real time, can judge whether the fuel supply system of the vehicle has faults or not according to the difference value, gives corresponding early warning to different fault levels or has corresponding limiting action to the engine, so as to monitor the mechanical faults of hardware facilities in the electric control fuel injection system in time, give corresponding fault early warning and ensure the safety of the vehicle in the driving process.
In a third aspect, an embodiment of the present invention further provides a device for monitoring abnormal fuel consumption.
Referring to fig. 3, a functional module diagram of an embodiment of the abnormal fuel consumption monitoring apparatus is shown.
In this embodiment, the monitoring device for abnormal fuel consumption includes:
the obtaining module 10 is configured to obtain an actual fuel consumption and a theoretical fuel consumption within a fixed time duration;
the calculating module 20 is configured to subtract the theoretical fuel consumption from the actual fuel consumption to obtain a difference, and calculate a ratio of the difference to the theoretical fuel consumption;
a judging module 30, configured to determine a target numerical range in which the ratio is located;
and the control module 40 is used for carrying out corresponding control actions according to the target numerical range.
Further, in an embodiment, in the performing the corresponding control action according to the target value range, the control module 40 is configured to:
and if the target numerical range is within the first numerical range, outputting a fault early warning prompt.
Further, in an embodiment, in the performing the corresponding control action according to the target value range, the control module 40 is configured to:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
Further, in an embodiment, in the performing the corresponding control action according to the target value range, the control module 40 is configured to:
and if the target numerical range is in a third numerical range, outputting a fault early warning prompt and returning the engine to an idling state, wherein the lower limit value of the third numerical range is greater than the upper limit value of the second numerical range.
Further, in an embodiment, the obtaining module 10 is configured to obtain the actual fuel consumption and the theoretical fuel consumption within a fixed time duration, and is configured to:
calculating the height value of the liquid level of the oil tank in a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption in the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the cylinders of the engine, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
The function implementation of each module in the oil consumption abnormality monitoring device corresponds to each step in the oil consumption abnormality monitoring method embodiment, and the function and implementation process are not described in detail herein.
In a fourth aspect, the embodiment of the present invention further provides a readable storage medium.
The readable storage medium of the invention stores a monitoring program for monitoring abnormal fuel consumption, wherein when the monitoring program is executed by a processor, the steps of the monitoring method for monitoring abnormal fuel consumption are realized.
The method for monitoring abnormal fuel consumption when executed may refer to the embodiments of the monitoring method for abnormal fuel consumption, and will not be described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or system. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or system that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are only for description, and do not represent the advantages and disadvantages of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but in many cases, the former is a better implementation manner. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) as described above and includes instructions for causing a terminal device to execute the method according to the embodiments of the present invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (9)
1. A monitoring method for abnormal oil consumption is characterized by comprising the following steps:
acquiring the actual fuel consumption and the theoretical fuel consumption within a fixed time;
subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value, and calculating the ratio of the difference value to the theoretical fuel consumption;
determining a target value range in which the ratio is located;
performing corresponding control action according to the target numerical range;
the step of obtaining the actual fuel consumption and the theoretical fuel consumption within the fixed time period comprises the following steps:
calculating the height value of the liquid level of the oil tank within a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption within the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the engine cylinders, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
2. The method for monitoring the abnormal oil consumption according to claim 1, wherein the step of performing the corresponding control action according to the target numerical range includes:
and if the target numerical range is within the first numerical range, outputting a fault early warning prompt.
3. The method for monitoring the abnormal oil consumption according to claim 2, wherein the step of performing the corresponding control action according to the target numerical range includes:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
4. The method for monitoring the abnormal oil consumption according to claim 3, wherein the step of performing the corresponding control action according to the target numerical range includes:
and if the target numerical range is in a third numerical range, outputting a fault early warning prompt and returning the engine to an idling state, wherein the lower limit value of the third numerical range is greater than the upper limit value of the second numerical range.
5. A fuel consumption abnormality monitoring apparatus, characterized by comprising:
the acquisition module is used for acquiring the actual fuel consumption and the theoretical fuel consumption within a fixed time length;
the calculation module is used for subtracting the theoretical fuel consumption from the actual fuel consumption to obtain a difference value and calculating the ratio of the difference value to the theoretical fuel consumption;
the judging module is used for determining a target numerical range in which the ratio is positioned;
the control module is used for carrying out corresponding control action according to the target numerical range;
the acquisition module is specifically configured to:
calculating the height value of the liquid level of the oil tank in a fixed time length and the sectional area of the oil tank corresponding to the height value of the liquid level in an integral manner to obtain the actual fuel consumption in the fixed time length;
and obtaining a theoretical fuel consumption rate based on the engine speed, the circulating fuel supply amount and the number of the engine cylinders, and calculating to obtain the theoretical fuel consumption in a fixed time length according to the fuel consumption rate integral.
6. The fuel consumption abnormality monitoring device according to claim 5, wherein the control module is configured to perform a corresponding control action according to the target value range, and is configured to:
and if the target numerical range is within the first numerical range, outputting a fault early warning prompt.
7. The oil consumption abnormality monitoring device according to claim 6, wherein the control module is configured to perform a corresponding control action according to the target value range:
and if the target numerical range is within a second numerical range, outputting a fault early warning prompt and limiting the output torque of the engine, wherein the lower limit value of the second numerical range is greater than the upper limit value of the first numerical range.
8. A fuel consumption abnormality monitoring apparatus, comprising a processor, a memory, and a fuel consumption abnormality monitoring program stored on the memory and executable by the processor, wherein when the fuel consumption abnormality monitoring program is executed by the processor, the steps of the fuel consumption abnormality monitoring method according to any one of claims 1 to 4 are implemented.
9. A readable storage medium, wherein a fuel consumption abnormality monitoring program is stored on the readable storage medium, and when the fuel consumption abnormality monitoring program is executed by a processor, the steps of the fuel consumption abnormality monitoring method according to any one of claims 1 to 4 are implemented.
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