CN111173633B - Method, device and system for alarming fuel oil supply fault - Google Patents
Method, device and system for alarming fuel oil supply fault Download PDFInfo
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- CN111173633B CN111173633B CN201911417763.5A CN201911417763A CN111173633B CN 111173633 B CN111173633 B CN 111173633B CN 201911417763 A CN201911417763 A CN 201911417763A CN 111173633 B CN111173633 B CN 111173633B
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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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- 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
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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)
- Fuel-Injection Apparatus (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The invention belongs to the technical field of fuel supply systems, and particularly relates to a method, a device and a system for alarming fuel supply faults. The fuel supply fault alarm method comprises the following steps: acquiring a current temperature value of an oil supply temperature and a current temperature value of a low-pressure oil cavity of a high-pressure oil pump; controlling a first alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value; and controlling a second alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value. According to the method for alarming the fuel oil supply fault, the first alarm is controlled to alarm, the problems of the fuel delivery pump, the fuel delivery pump pipeline, the sealing gasket or the coarse filter can be determined, the second alarm is controlled to alarm, the problem of the overhigh fuel oil supply temperature can be determined, and the fault reason can be quickly judged.
Description
Technical Field
The invention belongs to the technical field of fuel supply systems, and particularly relates to a method, a device and a system for alarming fuel supply faults.
Background
During the operation of the diesel engine, the fuel supply is often insufficient. Firstly, users do not need to connect a diesel engine fuel delivery pump frequently for convenience, and particularly ship users think that a fuel tank is high enough and directly connect a filter; the problems that the fuel oil rough filter is excessively dirty and has excessive resistance, the fuel delivery pump is damaged, the oil supply pipeline is excessively thin, the oil way gasket is damaged and absorbs air, and the like, so that the fuel oil is insufficient when the diesel engine runs, the performance and the reliability of the diesel engine are greatly influenced, the diesel engine is not loaded, black smoke is emitted after long time of loading, the diesel engine is stopped suddenly and is difficult to start again, the high-pressure oil pump has no oil return or has little oil return amount, the high-pressure oil pump cannot be cooled, and the high-pressure oil pump and the high-pressure oil pipe are overheated are solved.
When maintenance is carried out by service personnel, the fuel injector, the fuel injection pump, the supercharger and other parts which have great influence on the performance of the diesel engine are generally checked, the shortage of fuel of the diesel engine is often ignored, and the real fault reason of the diesel engine cannot be found out due to the replacement of a large number of parts.
Disclosure of Invention
The invention aims to at least solve the problems that the existing diesel engine has insufficient fuel during operation and can not judge the fault reason. The purpose is realized by the following technical scheme:
a first aspect of the invention proposes a method of fuel delivery malfunction alerting, wherein the method comprises the steps of:
acquiring a current temperature value of an oil supply temperature and a current temperature value of a low-pressure oil cavity of a high-pressure oil pump;
controlling a first alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and controlling a second alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
According to the fuel supply fault alarm method, the difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value, the first alarm is controlled to alarm, the problems of the oil transfer pump, the oil transfer pump pipeline, the sealing gasket or the coarse filter can be determined, the difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value, the second alarm is controlled to alarm, the problem of overhigh fuel supply temperature can be determined, and the fault reason can be quickly judged.
In addition, the method for alarming fuel supply failure according to the invention can also have the following additional technical characteristics:
in some embodiments of the present invention, the obtaining the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil chamber of the high-pressure oil pump includes:
and calculating the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump.
In some embodiments of the invention, said obtaining a current temperature value of the temperature of the oil supply comprises:
acquiring a current temperature value of the fuel supply temperature by acquiring a current temperature value of a fuel supply pipe of the high-pressure fuel pump; or the current temperature value of the fuel supply temperature is obtained by obtaining the current temperature value of the fuel tank communicated with the high-pressure oil pump.
In another aspect of the present invention, a fuel supply failure warning device is further provided, where the fuel supply failure warning device is configured to perform the above fuel supply failure warning method, and the fuel supply failure warning device includes: obtain unit, first alarm control unit and second alarm control unit, wherein:
the acquisition unit is used for acquiring the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump;
the first alarm control unit is used for controlling a first alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and the second alarm control unit is used for controlling a second alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
The invention also provides a fuel supply failure alarm system, wherein the control system comprises a memory and the fuel supply failure alarm device, and the memory stores instructions of the fuel supply failure alarm method;
further comprising: the high-pressure oil pump, the first alarm, the second alarm and the controller; a first temperature sensor is arranged on a low-pressure cavity of the high-pressure oil pump, and a second temperature sensor is arranged on a fuel oil supply pipe of the high-pressure oil pump or a fuel tank connected with the high-pressure oil pump;
and the controller receives signals of the first temperature sensor and the second temperature sensor and controls the first alarm to give an alarm or controls the second alarm to give an alarm.
In some embodiments of the invention, the fuel tank is connected to the high-pressure oil pump via a strainer and a feed pump in this order.
In some embodiments of the invention, gaskets are provided between the strainer, the fuel delivery pump and the high pressure pump and the fuel line.
In some embodiments of the present invention, the first temperature sensor is connected to the controller by a first sensor line, and the second temperature sensor is connected to the controller by a second sensor line.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like parts are designated by like reference numerals throughout the drawings.
In the drawings:
FIG. 1 schematically illustrates a flow chart of a method of fuel delivery malfunction alerting, in accordance with an embodiment of the present invention;
FIG. 2 schematically illustrates a connection diagram of a fuel supply malfunction alerting system according to an embodiment of the present invention;
FIG. 3 schematically illustrates a logic control diagram of a method of fuel delivery malfunction alerting, in accordance with an embodiment of the present invention.
1: a second temperature sensor; 2: a fuel supply line; 3: a first temperature sensor; 4: a first sensor line; 5: a controller; 6: a second sensor line.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order described or illustrated, unless specifically identified as an order of performance. It should also be understood that additional or alternative steps may be used.
Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.
For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "over", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
As shown in fig. 1, the method for warning fuel supply failure in the present embodiment includes the following steps:
s1, acquiring the current temperature value of the oil supply temperature and the current temperature value of a low-pressure oil cavity of the high-pressure oil pump;
s2, controlling a first alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and S3, controlling a second alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
The difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value, the first alarm is controlled to give an alarm, the problems of the fuel delivery pump, the fuel delivery pump pipeline, the sealing gasket or the coarse filter can be determined, the difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value, the second alarm is controlled to give an alarm, the problem of overhigh fuel supply temperature can be determined, and the reason of the fault can be quickly judged.
In some embodiments of the present invention, the obtaining the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil chamber of the high-pressure oil pump includes:
and calculating the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump.
When the diesel engine normally operates, the high-pressure oil pump is kept at a normal temperature, and when the current temperature of the high-pressure oil pump is too high to exceed a preset temperature value (set), two reasons generally exist, namely, the oil supply quantity is insufficient, the oil return quantity of the high-pressure oil pump is too low or no oil return exists, the high-pressure oil pump cannot be cooled, and a pump body and a high-pressure oil pipe are overheated; secondly, the oil supply temperature is too high.
In some embodiments of the invention, obtaining the current temperature value of the temperature of the oil supply comprises:
acquiring a current temperature value of the fuel supply temperature by acquiring a current temperature value of a fuel supply pipe of the high-pressure fuel pump; or the current temperature value of the fuel supply temperature is obtained by obtaining the current temperature value of the fuel tank communicated with the high-pressure oil pump.
In another aspect of the present invention, a fuel supply failure warning apparatus is further provided, where the fuel supply failure warning apparatus is used for executing the above fuel supply failure warning method, and the fuel supply failure warning apparatus includes: the alarm system comprises an acquisition unit, a first alarm control unit and a second alarm control unit, wherein:
the acquisition unit is used for acquiring the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump;
the first alarm control unit is used for controlling the first alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and the second alarm control unit is used for controlling the second alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
As shown in fig. 2, another aspect of the present invention further provides a fuel supply failure alarm system, where the control system includes a memory and the above fuel supply failure alarm device, and the memory stores instructions of the above fuel supply failure alarm method;
further comprising: the high-pressure oil pump, the first alarm, the second alarm and the controller 5; a first temperature sensor 3 is arranged on a low-pressure cavity of the high-pressure oil pump, and a second temperature sensor 1 is arranged on a fuel oil supply pipe 2 of the high-pressure oil pump or a fuel tank connected with the high-pressure oil pump;
the controller 5 receives signals of the first temperature sensor 3 and the second temperature sensor 1, and controls the first alarm to alarm or controls the second alarm to alarm.
In some embodiments of the invention, the fuel tank is connected to the high-pressure oil pump sequentially through a strainer and a fuel delivery pump.
In some embodiments of the invention, gaskets are provided between the strainer, the fuel delivery pump and the high pressure pump and the fuel line. The difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value, and a first alarm is controlled to give an alarm; it is necessary to check whether the gasket is damaged.
In some embodiments of the present invention, the first temperature sensor 3 is connected to the controller 5 by a first sensor wire 4, and the second temperature sensor 1 is connected to the controller 5 by a second sensor wire 6.
In the fuel supply fault alarm method, the low-pressure oil cavity of the high-pressure oil pump and the temperature of the fuel supply are compared, when the temperature difference between the two temperatures is larger than a set value, the fuel supply is insufficient, the controller 5 can send out a fuel pressure low fuel supply insufficient alarm or voice prompt to control the first alarm to alarm, load limitation is carried out on the diesel engine, and whether a fuel delivery pump is connected or damaged or not is prompted to a user, whether a fuel delivery pipeline is too thin or not, whether a coarse filter is too dirty or not, and whether a fuel line sealing gasket is damaged or not is inhaled. If the oil return pipe is transparent, the fault reason can be judged from the oil return condition of the oil return pipe, the oil delivery pump is damaged or is not connected when the oil return pipe does not return oil, the oil return amount is small, the oil delivery pipeline is too thin, the coarse filter is dirty, the oil return amount is less than normal, and the air is sucked due to the fact that the air bubble is accompanied with the ordinary oil pipeline which is not tightly sealed (the sealing gasket is damaged); when the temperature difference between the two is smaller than a set value, the fuel supply temperature is caused to be overhigh, the controller 5 sends out a fuel supply overhigh alarm, controls the second alarm to alarm, and prompts to check the temperature of fuel in the fuel tank to judge whether the fuel in the fuel tank is too little in high-temperature weather.
In conclusion, in the fuel supply fault alarm method, the difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value, the first alarm is controlled to alarm, the problems of the oil transfer pump, the oil transfer pump pipeline, the sealing gasket or the coarse filter can be determined, the difference value between the current temperature value of the fuel supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value, the second alarm is controlled to alarm, the problem of the overhigh fuel supply temperature can be determined, and the fault reason can be quickly judged.
The above description is only for the preferred embodiment 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 shall be covered by 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 (7)
1. A method of fuel delivery malfunction alerting, characterized in that the method of fuel delivery malfunction alerting comprises the steps of:
acquiring a current temperature value of an oil supply temperature and a current temperature value of a low-pressure oil cavity of a high-pressure oil pump;
calculating the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump according to the condition that the current temperature value of the high-pressure oil pump is higher than the preset temperature value;
controlling a first alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and controlling a second alarm to give an alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
2. The method of fuel delivery malfunction alerting of claim 1, wherein said obtaining a current temperature value of the temperature of the fuel delivery includes:
acquiring a current temperature value of the fuel supply temperature by acquiring a current temperature value of a fuel supply pipe of the high-pressure fuel pump; or the current temperature value of the fuel supply temperature is obtained by obtaining the current temperature value of the fuel tank communicated with the high-pressure oil pump.
3. A fuel supply malfunction warning apparatus for performing the fuel supply malfunction warning method of claim 1, the fuel supply malfunction warning apparatus comprising: obtain unit, first alarm control unit and second alarm control unit, wherein:
the acquisition unit is used for acquiring the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump;
the first alarm control unit is used for controlling a first alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is larger than the set temperature difference value;
and the second alarm control unit is used for controlling a second alarm to alarm according to the fact that the difference value between the current temperature value of the oil supply temperature and the current temperature value of the low-pressure oil cavity of the high-pressure oil pump is smaller than the set temperature difference value.
4. A fuel supply malfunction alerting system, characterized in that the fuel supply malfunction alerting system comprises a memory in which instructions of the fuel supply malfunction alerting method of claim 1 or 2 are stored, and the fuel supply malfunction alerting device of claim 3;
further comprising: the high-pressure oil pump, the first alarm, the second alarm and the controller; a first temperature sensor is arranged on a low-pressure cavity of the high-pressure oil pump, and a second temperature sensor is arranged on a fuel oil supply pipe of the high-pressure oil pump or a fuel tank connected with the high-pressure oil pump;
the controller receives signals of the first temperature sensor and the second temperature sensor, and controls the first alarm to give an alarm or controls the second alarm to give an alarm.
5. The fuel supply malfunction warning system according to claim 4, wherein the fuel tank is connected to the high-pressure oil pump sequentially through a strainer and a fuel delivery pump.
6. The fuel supply malfunction alarm system of claim 5, wherein sealing gaskets are provided between the strainer, the fuel delivery pump, and the high pressure fuel pump and the fuel line.
7. The fuel supply malfunction alerting system according to claim 4, wherein the first temperature sensor is connected to the controller through a first sensor line, and the second temperature sensor is connected to the controller through a second sensor line.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911417763.5A CN111173633B (en) | 2019-12-31 | 2019-12-31 | Method, device and system for alarming fuel oil supply fault |
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| CN201911417763.5A CN111173633B (en) | 2019-12-31 | 2019-12-31 | Method, device and system for alarming fuel oil supply fault |
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| CN111173633A CN111173633A (en) | 2020-05-19 |
| CN111173633B true CN111173633B (en) | 2022-04-05 |
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| JP6384352B2 (en) * | 2015-02-10 | 2018-09-05 | 株式会社デンソー | Abnormality diagnosis apparatus and abnormality diagnosis method |
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| KR100644126B1 (en) * | 2005-09-09 | 2006-11-10 | 르노삼성자동차 주식회사 | Liquid phase lpg injection fuel system of vehicle and method thereof |
| WO2013037542A1 (en) * | 2011-09-14 | 2013-03-21 | Robert Bosch Gmbh | High-pressure fuel pump for injection system |
| JP2013068195A (en) * | 2011-09-26 | 2013-04-18 | Hino Motors Ltd | Abnormality detection apparatus of fuel filter |
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