CN102435247A - Oil quantity digital display method for heavy-duty vehicle based on float type oil quantity sensor - Google Patents
Oil quantity digital display method for heavy-duty vehicle based on float type oil quantity sensor Download PDFInfo
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- CN102435247A CN102435247A CN2011102418155A CN201110241815A CN102435247A CN 102435247 A CN102435247 A CN 102435247A CN 2011102418155 A CN2011102418155 A CN 2011102418155A CN 201110241815 A CN201110241815 A CN 201110241815A CN 102435247 A CN102435247 A CN 102435247A
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Abstract
The invention provides an oil quantity digital display method for a heavy-duty vehicle based on a float type oil quantity sensor. The oil quantity digital display method comprises the following steps of: 1, acquiring an oil quantity curve of the sensor; 2, continuously acquiring n resistance values output by the float type oil quantity sensor in a time period T, and acquiring oil quantity values corresponding to the resistance values; 3, judging whether the heavy-duty vehicle is in a stop state according to a bus speed signal, if so, shifting to a step 4, otherwise shifting to a step 5; 4, calculating an oil quantity value during stopping of the heavy-duty vehicle and displaying; and 5, calculating an oil quantity value during running of the heavy-duty vehicle. By adopting the oil quantity digital display method, acquired oil quantity information is respectively subjected to smooth processing according to different states (namely, stopping and running) of the heavy-duty vehicle, so that the oil quantity information acquired by the float type oil quantity sensor can be digitally displayed.
Description
Technical field
The present invention relates to a kind of heavy goods vehicles oil mass digitizing display packing, belong to the heavy goods vehicles technical field based on the float-type fuel-quantity transducer.
Background technology
In the heavy goods vehicles technical field,, adopt the float-type fuel-quantity transducer that the oil mass of heavy goods vehicles top tank is gathered usually in order to reduce its production cost.The float-type fuel-quantity transducer is to utilize float to slide up and down at sensor the output resistance of sensor is changed, and obtains the oil mass information of current fuel tank according to the variation of output resistance.That the float-type fuel-quantity transducer has is simple in structure, cost is low, the advantage of good reliability.But because the characteristic (the cross-country characteristic of in the mountain forest of jolting, going) in the heavy goods vehicles environment for use and the field of use; Make the oily plane of fuel tank internal rock very big; The less stable that causes float-type fuel-quantity transducer output signal; When carrying out the numeral demonstration, its digital jerk value is big, can't carry out Exact Number to the oil mass in the oil mass and show.Therefore currently can't carry out digitizing to the oil mass information that adopts the collection of float-type fuel-quantity transducer and show, so that read intuitively.
Summary of the invention
The present invention provides a kind of heavy goods vehicles oil mass digitizing display packing based on the float-type fuel-quantity transducer; This method is gathered the signal of float-type fuel-quantity transducer according to certain cycle; Motion state according to heavy goods vehicles; Employing is carried out smoothing processing to the signal of being gathered, and makes the inventive method to carry out digitizing to the oil mass information that adopts the collection of float-type fuel-quantity transducer and shows.
Realize that technical scheme of the present invention is following:
A kind of heavy goods vehicles oil mass digitizing display packing based on the float-type fuel-quantity transducer, concrete steps are:
Step 1, when obtaining fuel tank and remaining static, oil mass and the sensor oil mass curve that float-type transmitter output resistance resistance concerns make j=1 in the expression fuel tank;
The resistance value of step 2, n float-type fuel-quantity transducer output of collection in period of time T, and, calculate the corresponding oil mass value A of n resistance value that is gathered according to said sensor oil mass curve
i, i=1,2 ..., n;
Step 3, judge through the bus GES whether heavy goods vehicles is in halted state,, otherwise get into step 5 if then get into step 4;
Step 4, remove A
iIn average after maximal value and the minimum value, obtain average value P, further will with current time before the oil mass value and the P of m adjacent moment average, obtain the oil mass value V ' of current time, and V ' is uploaded to display through the CAN bus shows;
Step 5, remove A
iAverage after middle maximal value and the minimum value, obtain average value P, further oil mass value and the P with m adjacent moment before P and the current time averages, and obtains the oil mass value V of current time
j
Judge the times of collection l that this moment, whether j equaled to be provided with in advance, if then order
Get into step 6, otherwise make j add 1, return step 2;
Step 6, this moment the oil mass value V that obtains " being uploaded to display through the CAN bus shows.
According to the invention will average with oil mass value and the P of m adjacent moment before the current time for: begin from the oil mass value with the current nearest moment, the oil mass value to a said m adjacent moment is provided with the weighting coefficient that successively decreases continuously, and carries out weighted mean with P.
Beneficial effect
The present invention adds the wet goods oil mass owing to heavy goods vehicles under static state possibly exist and changes situation faster, therefore need in the less time cycle, upgrade the oil mass in the fuel tank; And heavy goods vehicles has only vehicle motor slower in the oil supply variation under transport condition, therefore can upgrade the oil mass in the fuel tank than stationary state slowly; Therefore the motion state that the present invention is different according to heavy goods vehicles (static and motion) is carried out smoothing processing to the oil mass information of gathering respectively, makes the inventive method to carry out digitizing to the oil mass information that adopts the collection of float-type fuel-quantity transducer and shows.
Description of drawings
Fig. 1 is the process flow diagram that the present invention is based on the heavy goods vehicles oil mass digitizing display packing of float-type fuel-quantity transducer.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is further elaborated.
As shown in Figure 1, the present invention is based on the heavy goods vehicles oil mass digitizing display packing of float-type fuel-quantity transducer, concrete steps are:
Step 1, when obtaining fuel tank and remaining static, oil mass and the sensor oil mass curve that float-type transmitter output resistance resistance concerns make j=1 in the expression fuel tank.This sensor oil mass curve calculates and obtains according to tankage curve (capacity/highly corresponding curve) and fuel-quantity transducer curve (the corresponding curve of resistance value/float position).
The resistance value of step 2, n float-type fuel-quantity transducer output of collection in period of time T, and, calculate the corresponding oil mass value A of n resistance value that is gathered according to said sensor oil mass curve
i, i=1,2 ..., n.Period of time T=100ms in the present embodiment makes n=10, and promptly every collection 10 numbers promptly get into step 3.
Step 3, because when heavy goods vehicles is static, mainly be to exist to add the wet goods oil mass and change situation faster; When heavy goods vehicles is moved, mainly be that engine brings variation to the oil of the consumption in the fuel tank; Therefore this step need be judged the motion state of heavy goods vehicles promptly judge through the bus GES whether heavy goods vehicles is in halted state, if then get into step 4, otherwise gets into step 5;
Step 4, heavy goods vehicles are in halted state, and stationary state oil mass smoothing algorithm is: average after 10 data of gathering are removed minimum and maximum value, obtain average value P, the spike in like this can filtering circuit disturbs; Further will carry out weighted mean with the oil mass value and the P of 9 adjacent moment before the current time; Obtain the oil mass value V ' of current time; And V ' is uploaded to display through the CAN bus shows wherein said average out to: begin from oil mass value, to the oil mass value of said 9 adjacent moment with the current nearest moment; The weighting coefficient that successively decreases continuously is set, and carries out weighted mean with P.
Step 5, heavy goods vehicles are kept in motion; When static; Can the long period to the oil mass information updating once; Motion state oil mass smoothing algorithm is: the oil mass value that stationary state oil mass smoothing algorithm calculates averages acquisition oil mass V as data of transport condition moving average filter algorithm through 30 stationary state oil mass values ".Average after promptly 10 data of gathering being removed minimum and maximum value, obtain average value P, the spike in like this can filtering circuit disturb further with P and current time before the oil mass value of 9 adjacent moment average, obtain the oil mass value V of current time
j, wherein saidly on average also be: begin from the oil mass value with the current nearest moment, the oil mass value to said 9 adjacent moment is provided with the weighting coefficient that successively decreases continuously, and carries out weighted mean with P.
Judge this moment, whether j equaled 30, if then order
Get into step 6, otherwise make j add 1, return step 2.
Step 6, this moment the oil mass value V that obtains " being uploaded to display through the CAN bus shows.
Though in conjunction with accompanying drawing embodiment of the present invention has been described; But to those skilled in the art; Under the prerequisite that does not break away from the principle of the invention, can also make some distortion, replacement and improvement, these also should be regarded as belonging to protection scope of the present invention.
Claims (4)
1. heavy goods vehicles oil mass digitizing display packing based on the float-type fuel-quantity transducer is characterized in that concrete steps are:
Step 1, when obtaining fuel tank and remaining static, oil mass and the sensor oil mass curve that float-type transmitter output resistance resistance concerns make j=1 in the expression fuel tank;
The resistance value of step 2, n float-type fuel-quantity transducer output of collection in period of time T, and, calculate the corresponding oil mass value A of n resistance value that is gathered according to said sensor oil mass curve
i, i=1,2 ..., n;
Step 3, judge through the bus GES whether heavy goods vehicles is in halted state,, otherwise get into step 5 if then get into step 4;
Step 4, remove A
iIn average after maximal value and the minimum value, obtain average value P, further will with current time before the oil mass value and the P of m adjacent moment average, obtain the oil mass value V ' of current time, and V ' is uploaded to display through the CAN bus shows;
Step 5, remove A
iAverage after middle maximal value and the minimum value, obtain average value P, further oil mass value and the P with m adjacent moment before P and the current time averages, and obtains the oil mass value V of current time
j
Judge the times of collection l that this moment, whether j equaled to be provided with in advance, if then order
Get into step 6, otherwise make j add 1, return step 2;
Step 6, this moment the oil mass value V that obtains " being uploaded to display through the CAN bus shows.
2. according to the said heavy goods vehicles oil mass digitizing display packing of claim 1 based on the float-type fuel-quantity transducer; It is characterized in that; Said will average with oil mass value and the P of m adjacent moment before the current time for: begin from oil mass value with the current nearest moment; Oil mass value to a said m adjacent moment is provided with the weighting coefficient that successively decreases continuously, and carries out weighted mean with P.
3. according to the said heavy goods vehicles oil mass digitizing display packing of claim 1, it is characterized in that said period of time T is 100ms based on the float-type fuel-quantity transducer.
4. according to the said heavy goods vehicles oil mass digitizing display packing of claim 1, it is characterized in that said n is 10 based on the float-type fuel-quantity transducer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110241815 CN102435247B (en) | 2011-08-23 | 2011-08-23 | Oil quantity digital display method for heavy-duty vehicle based on float type oil quantity sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201110241815 CN102435247B (en) | 2011-08-23 | 2011-08-23 | Oil quantity digital display method for heavy-duty vehicle based on float type oil quantity sensor |
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| CN102435247A true CN102435247A (en) | 2012-05-02 |
| CN102435247B CN102435247B (en) | 2013-01-02 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292858A (en) * | 2012-11-02 | 2013-09-11 | 许昌学院电气信息工程学院 | Method and device for accurately and effectively measuring fuel level in automobile fuel tank |
| CN103398752A (en) * | 2012-11-02 | 2013-11-20 | 张元敏 | Method for accurately computing filled fuel quantity and stolen fuel quantity of automobile |
| CN104679803A (en) * | 2013-12-03 | 2015-06-03 | 上海移为通信技术有限公司 | Method and device for processing data outputted by oil level sensor of vehicle |
| CN104677446A (en) * | 2013-11-28 | 2015-06-03 | 北汽福田汽车股份有限公司 | Vehicle fuel meter pointer control method and system |
| CN107817032A (en) * | 2017-11-15 | 2018-03-20 | 黄山金马科技有限公司 | A kind of oil mass indication mechanism and display methods |
| CN111238600A (en) * | 2020-02-12 | 2020-06-05 | 五羊—本田摩托（广州）有限公司 | Vehicle remaining oil amount detection method and device, vehicle and storage medium |
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| CN101619995A (en) * | 2008-06-30 | 2010-01-06 | 上海德科电子仪表有限公司 | Method for measuring travelled mileage of residual fuel in fuel tank |
| CN101650207A (en) * | 2008-08-14 | 2010-02-17 | 上海德科电子仪表有限公司 | Trend evaluation-based calculation method for fuel gauge |
| CN102042861A (en) * | 2009-10-21 | 2011-05-04 | 厦门雅迅网络股份有限公司 | Method and device for acquiring fuel quantity data in fuel tank of vehicle |
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2011
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Patent Citations (3)
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| CN101619995A (en) * | 2008-06-30 | 2010-01-06 | 上海德科电子仪表有限公司 | Method for measuring travelled mileage of residual fuel in fuel tank |
| CN101650207A (en) * | 2008-08-14 | 2010-02-17 | 上海德科电子仪表有限公司 | Trend evaluation-based calculation method for fuel gauge |
| CN102042861A (en) * | 2009-10-21 | 2011-05-04 | 厦门雅迅网络股份有限公司 | Method and device for acquiring fuel quantity data in fuel tank of vehicle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292858A (en) * | 2012-11-02 | 2013-09-11 | 许昌学院电气信息工程学院 | Method and device for accurately and effectively measuring fuel level in automobile fuel tank |
| CN103398752A (en) * | 2012-11-02 | 2013-11-20 | 张元敏 | Method for accurately computing filled fuel quantity and stolen fuel quantity of automobile |
| CN103292858B (en) * | 2012-11-02 | 2015-11-11 | 许昌学院 | A kind of accurate and effective measured automobiles fuel tank oil material method |
| CN104677446A (en) * | 2013-11-28 | 2015-06-03 | 北汽福田汽车股份有限公司 | Vehicle fuel meter pointer control method and system |
| CN104677446B (en) * | 2013-11-28 | 2018-02-23 | 北汽福田汽车股份有限公司 | A kind of fuel gauge of vehicle pointer control method and system |
| CN104679803A (en) * | 2013-12-03 | 2015-06-03 | 上海移为通信技术有限公司 | Method and device for processing data outputted by oil level sensor of vehicle |
| CN107817032A (en) * | 2017-11-15 | 2018-03-20 | 黄山金马科技有限公司 | A kind of oil mass indication mechanism and display methods |
| CN111238600A (en) * | 2020-02-12 | 2020-06-05 | 五羊—本田摩托（广州）有限公司 | Vehicle remaining oil amount detection method and device, vehicle and storage medium |
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| CN102435247B (en) | 2013-01-02 |
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