CN105004394A - Commercial vehicle fuel leakage and stealing detection method and device - Google Patents

Commercial vehicle fuel leakage and stealing detection method and device Download PDF

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Publication number
CN105004394A
CN105004394A CN201510263251.3A CN201510263251A CN105004394A CN 105004394 A CN105004394 A CN 105004394A CN 201510263251 A CN201510263251 A CN 201510263251A CN 105004394 A CN105004394 A CN 105004394A
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fuel
stolen
fuel leakage
time
leakage
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魏丽娜
邓春云
赵现江
胡长江
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Aerospace Hi Tech Holding Group Co Ltd
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Aerospace Hi Tech Holding Group Co Ltd
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Abstract

The invention relates to a commercial vehicle fuel leakage and stealing detection method and device, and relates to the field of commercial vehicle fuel leakage and stealing detection, and solves the problem that the existing fuel leakage and stealing detection device is high in cost, complex in circuit connection and low in precision. The commercial vehicle fuel leakage and stealing detection device detects whether the commercial vehicle has fuel leakage and stealing cases in three different working states or not, and can monitor the fuel leakage and stealing case in real time in the whole start-stop process comprising ignition, traveling and flame-out, once a fuel leakage and stealing case occurs, the commercial vehicle fuel leakage and stealing detection device can remind the driver the first time, economic loss can be reduced, and severer accidents can be avoided; whether the inequality is reasonable is judged continuously for many times, by means of continuous and multi-time judgement, misjudgement cases can be reduced, the misjudgment rate is reduced, and the working efficiency is improved; and at the same time, the commercial vehicle fuel leakage and stealing detection method and device are suitable for various road conditions, and is relatively practical.

Description

The stolen detection method of commercial car fuel leakage and device
Technical field
The present invention relates to the stolen detection field of commercial car fuel leakage.
Background technology
The leakage of fuel leakage pick-up unit to fuel tank intermediate fuel oil of current most of commercial car employing circuit realiration is stolen carries out detection judgement, cost is higher, circuit connection is complicated, the mailbox volume simultaneously used due to commercial car is larger, mostly be 400L, 600L or 800L, if there is the less stolen situation of fuel leakage in the fuel tank of large volume, be difficult to detect by the pick-up unit of circuit realiration.
Summary of the invention
The present invention, in order to solve the problem that existing fuel leakage stolen pick-up unit cost is high, circuit connection is complicated and precision is low, proposes the stolen detection method of a kind of commercial car fuel leakage and device.
The stolen detection method of commercial car fuel leakage, before detecting vehicle launch, whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the ignition switch is turned off, namely before vehicle launch, fuel sensor gathers current fuel quantity L 0first time oil mass sampling step;
When ignition switch is opened, fuel sensor gathers current fuel quantity L 1second time oil mass sampling step;
Judge inequality L 1< L 0and (L 0-L 1) determining step whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
The stolen detection method of commercial car fuel leakage, for detect vehicle brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is zero, fuel sensor gathers the fuel quantity L of initial time 0initial oil mass sampling step;
After time delay a period of time, fuel sensor gathers the time delay oil mass sampling step of current fuel quantity L;
Judge inequality L < L 0and (L 0-L) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling step again, gathers the fuel quantity L of subsequent time, and starts determining step, until the judged result of at least ten determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
The stolen detection method of commercial car fuel leakage, for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is non-vanishing, fuel sensor gathers current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
T is obtained by instrument x-T x+1fuel consumption S in time period in moment xfuel consumption sampling step, x>=0;
Fuel sensor gathers T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling step;
Judge inequality l < (L 0-S) and (L 0-S-l) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling step, gathers the fuel quantity l of subsequent time, and starts determining step, until the judged result of at least 30000 determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
The stolen pick-up unit of commercial car fuel leakage, the stolen situation of fuel leakage whether is there is before detecting vehicle launch, described device comprises fuel sensor and closes the stolen detection module of fuel leakage by the ignition switch of software simulating, described fuel sensor is used for sampling to the oil mass in fuel tank, and described ignition switch is closed the stolen detection module of fuel leakage and comprised:
When the ignition switch is turned off, namely before vehicle launch, control fuel sensor and gather current fuel quantity L 0first time oil mass sampling module;
When ignition switch is opened, control fuel sensor and gather current fuel quantity L 1second time oil mass sampling module;
Judge inequality L 1< L 0and (L 0-L 1) judge module whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
The stolen pick-up unit of commercial car fuel leakage, for detect vehicle brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described device comprise fuel sensor and be zero by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is zero, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is zero, control the fuel quantity L that fuel sensor gathers initial time 0initial oil mass sampling module;
Time delay a period of time, make the time delay module that fuel level is stable;
Control the time delay oil mass sampling module that fuel sensor gathers current fuel quantity L;
Judge inequality L < L 0and (L 0-L) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling module again, gathers the fuel quantity L of subsequent time, and starts judge module, until the judged result of at least ten judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
The stolen pick-up unit of commercial car fuel leakage, for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, it comprise fuel sensor and non-vanishing by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is non-vanishing, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is non-vanishing, controls fuel sensor and gather current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
Control instrument obtains T x-T x+1fuel consumption S in time period in moment xfuel consumption sampling module, x>=0;
Control fuel sensor and gather T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling module;
Judge inequality l < (L 0-S) and (L 0-S-l) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling module, gathers the fuel quantity l of subsequent time, and starts judge module, until the judged result of at least 30000 judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
Beneficial effect: the present invention detects for the stolen situation of fuel leakage that whether exists of commerial vehicle under three kinds of different operating states respectively, vehicle can be made in igniting, travel until monitor fuel leakage is stolen in real time in flame-out whole start and stop state, once there is the stolen situation of fuel leakage, driver can be reminded in the very first time, can not only economic loss be reduced, and can avoid more serious security incident occurs; Meanwhile, method and apparatus proposed by the invention is applicable to various road conditions, more has practicality.
The present invention by whether setting up inequality of continuous several times is judged, the judgement of continuous several times can reduce the appearance of erroneous judgement situation, and reduce False Rate, increase work efficiency, the degree of accuracy of detection reaches 2%.
Accompanying drawing explanation
Fig. 1 for described in embodiment two for detecting the stolen detection method of commercial car fuel leakage before vehicle launch;
Fig. 2 for described in embodiment three for detect vehicle brake in the process of moving and the speed of a motor vehicle is zero time the stolen detection method of commercial car fuel leakage;
Fig. 3 for described in embodiment five for detect vehicle be expert at sail period the stolen detection method of commercial car fuel leakage.
Embodiment
Embodiment one, composition graphs 1 illustrate this embodiment, whether the stolen detection method of commercial car fuel leakage described in this embodiment exists the stolen situation of fuel leakage before detecting vehicle launch, and described method is realized by following step:
When the ignition switch is turned off, namely before vehicle launch, fuel sensor gathers current fuel quantity L 0first time oil mass sampling step;
When ignition switch is opened, fuel sensor gathers current fuel quantity L 1second time oil mass sampling step;
Judge inequality L 1< L 0and (L 0-L 1) determining step whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
Vehicle is in flame-out long-time process, due to self reason or other artificial origins of fuel tank, the situation that fuel tank can be made to occur that fuel leakage is stolen occurs, if do not carry out the stolen detection of fuel leakage before igniting travels, once there is the situation of Low oil Fuel in the process of moving, so will produce more trouble, in present embodiment, fuel quantity during by closing ignition switch and when ignition switch opens detects respectively, and the volume of the fuel quantity under two states and fuel tank is compared, can know whether fuel oil exists and leak stolen situation.
Embodiment two, composition graphs 2 illustrate this embodiment, the stolen detection method of commercial car fuel leakage described in this embodiment for detect vehicle and brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is zero, fuel sensor gathers the fuel quantity L of initial time 0initial oil mass sampling step;
After time delay a period of time, fuel sensor gathers the time delay oil mass sampling step of current fuel quantity L;
Judge inequality L < L 0and (L 0-L) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling step again, gathers the fuel quantity L of subsequent time, and starts determining step, until the judged result of at least ten determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
When the speed of a motor vehicle described in present embodiment is zero, the stolen detection method of fuel leakage is mainly for the stolen situation of fuel leakage when flame-out after travelling, in parking in a flash, now the speed of a motor vehicle is zero, fuel sensor detects fuel quantity, time delay a period of time, after making the liquid level stabilizing of fuel oil in fuel tank, then by fuel sensor, fuel quantity is detected, by the comparison of twice fuel quantity and volume of fuel tank, know whether fuel oil exists and leak stolen situation.
In present embodiment, by whether setting up inequality of continuous several times judged, after at least continuous ten inequality are set up, judge that fuel oil exists really and leak stolen situation appearance, the judgement of continuous several times can reduce the appearance of erroneous judgement situation, reduces False Rate, increases work efficiency.
The difference of the stolen detection method of commercial car fuel leakage described in embodiment three, this embodiment and embodiment two is, described delay time scope is 20s-25s.
Embodiment four, composition graphs 3 illustrate this embodiment, the stolen detection method of commercial car fuel leakage described in this embodiment for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is non-vanishing, fuel sensor gathers current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
T is obtained by instrument x-T x+1fuel consumption S in time period in moment xfuel consumption sampling step, x>=0;
Fuel sensor gathers T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling step;
Judge inequality l < (L 0-S) and (L 0-S-l) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling step, gathers the fuel quantity l of subsequent time, and starts determining step, until the judged result of at least 30000 determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
The situation of fuel consume is all there is not in embodiment one and the stolen detection method of the fuel leakage described in embodiment two in testing process, therefore, only need the fuel quantity in fuel tank be detected, and in present embodiment, the stolen situation of fuel leakage being mainly directed to vehicle just in the process of moving detects, owing to there is the situation of fuel consume in the process of moving, therefore, not only need to detect in real time the oil mass in fuel tank, also need the oil mass consumed in the process of moving to vehicle to detect simultaneously, again by not fuel quantity in the same time, fuel consumption in two adjacent moment time periods and the comparison of fuel oil box volume, know whether fuel oil exists and leak stolen situation.
The method that continuous several times judges to compare is taken equally in present embodiment.
In present embodiment, the judged result obtained by least continuous 30000 determining steps all makes inequality establishment go to judge that fuel leakage is stolen, and this number of times carries out judgement with the shift position of fuel oil pointer to draw.
Above-mentionedly can to cooperatively interact in testing process to the stolen detection method of the fuel leakage under vehicle different conditions, collaborate, also can detect in real time the speed of a motor vehicle in testing process, to choose detection method faster, whether fuel oil be leaked and stolenly makes rapid judgement.
Fuel sensor described in the present invention is conventional means to the means that the fuel quantity in fuel tank gathers.Carry out multiple repairing weld averaged to oil mass, collection result is more accurate.
The difference of the stolen detection method of commercial car fuel leakage described in embodiment five, this embodiment and embodiment two or four is, the sampling period of described fuel sensor is 1s.
Whether the stolen pick-up unit of commercial car fuel leakage described in embodiment six, this embodiment exists the stolen situation of fuel leakage before detecting vehicle launch, described device comprises fuel sensor and closes the stolen detection module of fuel leakage by the ignition switch of software simulating, described fuel sensor is used for sampling to the oil mass in fuel tank, and described ignition switch is closed the stolen detection module of fuel leakage and comprised:
When the ignition switch is turned off, namely before vehicle launch, control fuel sensor and gather current fuel quantity L 0first time oil mass sampling module;
When ignition switch is opened, control fuel sensor and gather current fuel quantity L 1second time oil mass sampling module;
Judge inequality L 1< L 0and (L 0-L 1) judge module whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
Vehicle is in flame-out long-time process, due to self reason or other artificial origins of fuel tank, the situation that fuel tank can be made to occur that fuel leakage is stolen occurs, if do not carry out the stolen detection of fuel leakage before igniting travels, once there is the situation of Low oil Fuel in the process of moving, so will produce more trouble, in present embodiment, fuel quantity during by closing ignition switch and when ignition switch opens detects respectively, and the volume of the fuel quantity under two states and fuel tank is compared, can know whether fuel oil exists and leak stolen situation.
The stolen pick-up unit of commercial car fuel leakage described in embodiment seven, this embodiment for detect vehicle and brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described device comprise fuel sensor and be zero by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is zero, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is zero, control the fuel quantity L that fuel sensor gathers initial time 0initial oil mass sampling module;
Time delay a period of time, make the time delay module that fuel level is stable;
Control the time delay oil mass sampling module that fuel sensor gathers current fuel quantity L;
Judge inequality L < L 0and (L 0-L) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling module again, gathers the fuel quantity L of subsequent time, and starts judge module, until the judged result of at least ten judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
When the speed of a motor vehicle described in present embodiment is zero, the stolen pick-up unit of fuel leakage is mainly for the stolen situation of fuel leakage when flame-out after travelling, in parking in a flash, now the speed of a motor vehicle is zero, fuel sensor detects fuel quantity, time delay a period of time, after making the liquid level stabilizing of fuel oil in fuel tank, then by fuel sensor, fuel quantity is detected, by the comparison of twice fuel quantity and volume of fuel tank, know whether fuel oil exists and leak stolen situation.
In present embodiment, by whether setting up inequality of continuous several times judged, after at least continuous ten inequality are set up, judge that fuel oil exists really and leak stolen situation appearance, the judgement of continuous several times can reduce the appearance of erroneous judgement situation, reduces False Rate, increases work efficiency.
The difference of the stolen pick-up unit of commercial car fuel leakage described in embodiment eight, this embodiment and embodiment seven is, the delay time scope of described time delay module is 20s-25s.
Time delay module described in present embodiment is to make fuel level stablize, and the fuel quantity data that fuel sensor is detected are more accurate, and less error, the time is generally decided to be 20s-25s.
The stolen pick-up unit of commercial car fuel leakage described in embodiment nine, this embodiment for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, it comprise fuel sensor and non-vanishing by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is non-vanishing, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is non-vanishing, controls fuel sensor and gather current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
Control instrument obtains T x-T x+1fuel consumption S in time period in moment xfuel consumption sampling module, x>=0;
Control fuel sensor and gather T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling module;
Judge inequality l < (L 0-S) and (L 0-S-l) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling module, gathers the fuel quantity l of subsequent time, and starts judge module, until the judged result of at least 30000 judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
The situation of fuel consume is all there is not in embodiment six and the stolen pick-up unit of the fuel leakage described in embodiment seven in testing process, therefore, only need the fuel quantity in fuel tank be detected, and in present embodiment, the stolen situation of fuel leakage being mainly directed to vehicle just in the process of moving detects, owing to there is the situation of fuel consume in the process of moving, therefore, not only need to detect in real time the oil mass in fuel tank, also need the oil mass consumed in the process of moving to vehicle to detect simultaneously, again by not fuel quantity in the same time, fuel consumption in two adjacent moment time periods and the comparison of fuel oil box volume, know whether fuel oil exists and leak stolen situation.
The method that continuous several times judges to compare is taken equally in present embodiment.
Above-mentionedly can to cooperatively interact in testing process to the stolen pick-up unit of the fuel leakage under vehicle different conditions, collaborate, also can detect in real time the speed of a motor vehicle in testing process, to choose detection method faster, whether fuel oil be leaked and stolenly makes rapid judgement.
The difference of the stolen pick-up unit of commercial car fuel leakage described in embodiment ten, this embodiment and embodiment seven or nine is, the sampling period of described fuel sensor is 1s.

Claims (10)

1. the stolen detection method of commercial car fuel leakage, is characterized in that, whether the method exists the stolen situation of fuel leakage before detecting vehicle launch, and described method is realized by following step:
When the ignition switch is turned off, namely before vehicle launch, fuel sensor gathers current fuel quantity L 0first time oil mass sampling step;
When ignition switch is opened, fuel sensor gathers current fuel quantity L 1second time oil mass sampling step;
Judge inequality L 1< L 0and (L 0-L 1) determining step whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
2. the stolen detection method of commercial car fuel leakage, is characterized in that, the method for detect vehicle and brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is zero, fuel sensor gathers the fuel quantity L of initial time 0initial oil mass sampling step;
After time delay a period of time, fuel sensor gathers the time delay oil mass sampling step of current fuel quantity L;
Judge inequality L < L 0and (L 0-L) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling step again, gathers the fuel quantity L of subsequent time, and starts determining step, until the judged result of at least ten determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
3. the stolen detection method of commercial car fuel leakage according to claim 2, is characterized in that, described delay time scope is 20s-25s.
4. the stolen detection method of commercial car fuel leakage, is characterized in that, the method for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, described method is realized by following step:
When the speed of a motor vehicle is non-vanishing, fuel sensor gathers current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
T is obtained by instrument x-T x+1fuel consumption S in time period in moment xfuel consumption sampling step, x>=0;
Fuel sensor gathers T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling step;
Judge inequality l < (L 0-S) and (L 0-S-l) determining step whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling step, gathers the fuel quantity l of subsequent time, and starts determining step, until the judged result of at least 30000 determining step acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
5. the stolen detection method of commercial car fuel leakage according to claim 2 or 4, is characterized in that, the sampling period of described fuel sensor is 1s.
6. the stolen pick-up unit of commercial car fuel leakage, it is characterized in that, whether this device exists the stolen situation of fuel leakage before detecting vehicle launch, described device comprises fuel sensor and closes the stolen detection module of fuel leakage by the ignition switch of software simulating, described fuel sensor is used for sampling to the oil mass in fuel tank, and described ignition switch is closed the stolen detection module of fuel leakage and comprised:
When the ignition switch is turned off, namely before vehicle launch, control fuel sensor and gather current fuel quantity L 0first time oil mass sampling module;
When ignition switch is opened, control fuel sensor and gather current fuel quantity L 1second time oil mass sampling module;
Judge inequality L 1< L 0and (L 0-L 1) judge module whether set up of > (fuel tank total measurement (volume) * 2%), if inequality is set up, then judge that fuel leakage is stolen, if inequality is false, then judge that fuel oil does not leak stolen.
7. the stolen pick-up unit of commercial car fuel leakage, it is characterized in that, this device for detect vehicle and brake in the process of moving and the speed of a motor vehicle is zero time whether there is the stolen situation of fuel leakage, described device comprise fuel sensor and be zero by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is zero, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is zero, control the fuel quantity L that fuel sensor gathers initial time 0initial oil mass sampling module;
Time delay a period of time, make the time delay module that fuel level is stable;
Control the time delay oil mass sampling module that fuel sensor gathers current fuel quantity L;
Judge inequality L < L 0and (L 0-L) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Start-up study oil mass sampling module again, gathers the fuel quantity L of subsequent time, and starts judge module, until the judged result of at least ten judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
8. the stolen pick-up unit of commercial car fuel leakage according to claim 7, is characterized in that, the delay time scope of described time delay module is 20s-25s.
9. the stolen pick-up unit of commercial car fuel leakage, it is characterized in that, this device for detect vehicle be expert at sail period whether there is the stolen situation of fuel leakage, it comprise fuel sensor and non-vanishing by the speed of a motor vehicle of software simulating time fuel leakage stolen detection module, described fuel sensor is used for sampling to the oil mass in fuel tank, and when the described speed of a motor vehicle is non-vanishing, the stolen detection module of fuel leakage comprises:
When the speed of a motor vehicle is non-vanishing, controls fuel sensor and gather current T 0the fuel quantity L in moment 0t 0moment oil mass sampling step;
Control instrument obtains T x-T x+1fuel consumption S in time period in moment xfuel consumption sampling module, x>=0;
Control fuel sensor and gather T x+1the T of the fuel quantity l in moment x+1moment oil mass sampling module;
Judge inequality l < (L 0-S) and (L 0-S-l) judge module whether set up of > (fuel tank total measurement (volume) * 2%);
Again start T x+1moment oil mass sampling module, gathers the fuel quantity l of subsequent time, and starts judge module, until the judged result of at least 30000 judge module acquisitions continuously all makes inequality set up, then judges that fuel leakage is stolen.
10. the stolen pick-up unit of commercial car fuel leakage according to claim 7 or 9, is characterized in that, the sampling period of described fuel sensor is 1s.
CN201510263251.3A 2015-05-21 2015-05-21 Commercial vehicle fuel leakage and stealing detection method and device Pending CN105004394A (en)

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CN108312842A (en) * 2018-04-11 2018-07-24 航天科技控股集团股份有限公司 The stolen device of fuel oil is detected on automobile instrument
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CN111238599A (en) * 2020-01-15 2020-06-05 南京智鹤电子科技有限公司 Method and device for monitoring abnormal oil level of machine in static state

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CN104344865A (en) * 2013-07-30 2015-02-11 北汽福田汽车股份有限公司 Automobile fuel signal processing method and automobile fuel signal processing system
CN103921761A (en) * 2014-04-24 2014-07-16 北京经纬恒润科技有限公司 Fuel theft-prevention control method and device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105501116A (en) * 2016-01-26 2016-04-20 一汽-大众汽车有限公司 Method and system for detecting leakage of fuel tanks of automobiles
CN108312842A (en) * 2018-04-11 2018-07-24 航天科技控股集团股份有限公司 The stolen device of fuel oil is detected on automobile instrument
CN110733461A (en) * 2019-09-10 2020-01-31 成都亿盟恒信科技有限公司 oil theft prevention detection system and method based on vehicle speed and hydraulic pressure change analysis
CN111005828A (en) * 2019-12-27 2020-04-14 潍柴动力股份有限公司 Gas consumption detection method and device
CN111005828B (en) * 2019-12-27 2021-03-16 潍柴动力股份有限公司 Gas consumption detection method and device
CN111238599A (en) * 2020-01-15 2020-06-05 南京智鹤电子科技有限公司 Method and device for monitoring abnormal oil level of machine in static state

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Application publication date: 20151028