CN102452319A - Control method for automobile fuel gauge - Google Patents
Control method for automobile fuel gauge Download PDFInfo
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- CN102452319A CN102452319A CN2010105150473A CN201010515047A CN102452319A CN 102452319 A CN102452319 A CN 102452319A CN 2010105150473 A CN2010105150473 A CN 2010105150473A CN 201010515047 A CN201010515047 A CN 201010515047A CN 102452319 A CN102452319 A CN 102452319A
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- fuel oil
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Abstract
The invention discloses a control method for an automobile fuel gauge, relating to a control method for an automobile instrument. The control method comprises: (1) a fuel gauge damping control method, which comprises the following steps of: igniting an instrument, sampling, processing a sampling value and then judging speed; (2) a fuel gauge flameout refueling control method, which comprises the following steps of: keeping the instrument wait for 8 seconds after flameout and then sampling the fuel gauge, wherein no refueling is indicated if the fuel volume is less than 1/8 of the volume of an oil tank, and a fuel pointer still indicates a position indicated by the fuel gauge before flameout, namely a position corresponding to V1; if the fuel gauge is still in a flameout state, the fuel gauge judges whether a fuel signal is invalid, namely whether the fuel gauge is in an open circuit sate or a short circuit state; and then the fuel gauge indicates according to a damping strategy; (3) a fuel gauge ignition refueling control method, wherein the fuel gauge is used for indicating according to the damping strategy; and (4) a low fuel alarm control step, which comprises low fuel alarm and low fuel alarm disappearance. The control method disclosed by the invention guarantees that the fuel gauge stably works under various conditions and accurately indicates the volume of the fuel.
Description
Technical field
The present invention relates to a kind of auto meter control method, particularly vehicle fuel table control method.
Background technology
Fuel gage is in the auto meter display system, is a more unmanageable control unit comparatively speaking.In the process of moving,, cause the fuel tank volume change, so also just cause the instrument can be not steady fuel oil signals sampling value because car load rocks.And if the fuel gage pointer is given instruction according to actual samples ground value in real time, just might cause the fuel oil pointer up and down, hang down the fuel oil warning and neglect and brightly go out suddenly.And fuel gage also need consider to refuel situation, how to judge successfully to refuel or only to be fuel tank cause rocking.If deal with improperly, all can cause client's complaint.This just needs to want a kind of perfect fuel gage control policy, and the assurance fuel gage is worked accurately.
Summary of the invention
The control method that the purpose of this invention is to provide a kind of vehicle fuel table the invention provides a kind of control method of fuel gage, guarantees fuel gage stable operation under various situations, and accurately indicates the fuel oil volume.
The control method of vehicle fuel table comprises: fuel gage damping control, the flame-out refueling control of fuel gage, fuel gage igniting refueling control, low fuel oil alarm control; Wherein:
(1) fuel gage damping control method, at first instrument igniting, this moment the instrument outside fuel oil resistance signal of sampling; 100 milliseconds of once sampling are sampled 10 times, and sampled value is handled; Reject maxim and minimum value, replace maxim and minimum value, then these 10 sampled values are averaged with time maxim and time minimum value; And according to the data that calculate, the fuel gage pointer is the corresponding tram of indication rapidly; After this speed of a motor vehicle is judged: if the speed of a motor vehicle greater than 0km/h, car load will be in motoring condition, oil meter will get into slow damping state, success powers up or instrument re-powers if detect, fuel gage gets into fast damping state; If the speed of a motor vehicle is 0km/h, oil meter is in fast damping state;
(2) the flame-out refueling control method of fuel gage, flame-out back instrument is waited for 8 seconds, after this to the fuel gage 1 second time of sampling, 100 milliseconds are once, average, and are designated as V1; After the igniting, the fuel oil signal 1 second of sampling is once more averaged, and is designated as V2; Relatively whether difference is greater than 1/8 fuel tank volume between V2, the V1 then, if greater than 1/8 fuel tank volume, then expression is refueled successfully, and the fuel oil pointer is indicated to the pairing position of V2, and oil meter gets into fast damping state; If less than 1/8 fuel tank volume, then expression is not refueled, and the fuel oil pointer is still indication oil meter indicating positions, the i.e. pairing position of V1 before flame-out; Be in flameout state if be still, then whether oil meter lost efficacy to the fuel oil signal and judged: whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(3) fuel gage igniting refueling control, if be in igniting and the speed of a motor vehicle is 0km/h, instrument is averaged to fuel oil intelligence sample 1 second, is designated as V1; If after this speed of a motor vehicle is 0 always, and have 8 second time at least, whether instrument record fuel oil sampled value V2 and the difference that begins comparison V2, V1 be greater than 1/8 fuel tank volume; If greater than 1/8 fuel tank volume, then fuel gage is indicated to up-to-date position and gets into fast damping state; If be in flameout state, then whether oil meter lost efficacy to the fuel oil signal and judged; Whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(4) low fuel oil alarm control, low fuel oil is reported to the police: 1 fuel oil sampled value reaches alarm set point A; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police, and the fuel gage red sector; The low fuel oil of following situation entering is reported to the police and disappeared: 1 fuel oil sampled value reaches the some B of the low fuel oil warning disappearance of setting; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police and disappeared; Above-mentioned A value and B value have return difference C=A-B＞0.
The fuel oil signal all is a resistance signal generally, needs instrument that the outside resistance signal fuel oil of sampling is handled.Because fuel tank along with rocking in the car load driving process, causes the value variable quantity of fuel oil sampling bigger comparatively speaking.And also have to refuel and various situations such as low fuel oil warning, all need a whole set of corresponding control strategies to guarantee that oil meter works accurately.The present invention can guarantee fuel gage stable operation under various situations, and accurately indicates the fuel oil volume.
Description of drawings
Fig. 1 is a fuel gage damping control flow chart of the present invention;
Fig. 2 is the flame-out fuel gage control flow chart that refuels of the present invention;
Fig. 3 is the present invention's oiling of lighting a fire, the fuel gage control flow chart;
Fig. 4 is schematic circuit diagram of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and with illustrated embodiments the present invention is done detailed explanation.
Consult Fig. 1-4, the control method of vehicle fuel table comprises: fuel gage damping control, the flame-out refueling control of fuel gage, fuel gage igniting refueling control, low fuel oil alarm control; Wherein:
(1) the fuel gage damping control method is consulted Fig. 1, at first instrument igniting, this moment the instrument outside fuel oil resistance signal of sampling; 100 milliseconds of once sampling are sampled 10 times, and sampled value is handled; Reject maxim and minimum value, replace maxim and minimum value, then these 10 sampled values are averaged with time maxim and time minimum value; Guarantee the particularity of fuel oil sampled data, and according to the data that calculate, the fuel gage pointer is the corresponding tram of indication rapidly; After this speed of a motor vehicle is judged: if the speed of a motor vehicle greater than 0km/h, car load will be in motoring condition, oil meter will get into slow damping state, success powers up or instrument re-powers if detect, fuel gage gets into fast damping state; Though the sampled value variable quantity that causes with regard to guaranteeing fuel tank in the process of moving to rock like this is very big, the oil meter pointer is steadily work normally still, and it is up and down can not pointer to occur.After this fuel gage will be in slow damping state always.If instrument detects and goes up storage battery or refuel successfully again, fuel gage will withdraw from slow damping state, get into fast damping state.If the speed of a motor vehicle is 0km/h, oil meter is in fast damping state; The damping representative is to expire oil level to the needed time of empty oil level from fuel tank, can do corresponding setting at EEprom as required.Slow damping generally is decided to be 60 minutes; And fast damping is better for the following property that guarantees pointer, generally is decided to be 20 seconds.
(2) the flame-out refueling control method of fuel gage is consulted Fig. 2, and flame-out back instrument is waited for 8 seconds, guarantees that fuel tank is in stabilized conditions.After this to the fuel gage 1 second time of sampling, 100 milliseconds once, averages, and is designated as V1; After the igniting, the fuel oil signal 1 second of sampling is once more averaged, and is designated as V2; Relatively whether difference is greater than 1/8 fuel tank volume between V2, the V1 then, if greater than 1/8 fuel tank volume, then expression is refueled successfully, and the fuel oil pointer is indicated to the pairing position of V2, and oil meter gets into fast damping state; If less than 1/8 fuel tank volume, then expression is not refueled, and the fuel oil pointer is still indication oil meter indicating positions, the i.e. pairing position of V1 before flame-out; Be in flameout state if be still, then whether oil meter lost efficacy to the fuel oil signal and judged: whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(3) fuel gage igniting refueling control is consulted Fig. 3, if be in igniting and the speed of a motor vehicle is 0km/h, instrument is averaged to fuel oil intelligence sample 1 second, is designated as V1; If after this speed of a motor vehicle is 0 always, and have 8 second time at least, whether instrument record fuel oil sampled value V2 and the difference that begins comparison V2, V1 be greater than 1/8 fuel tank volume; If greater than 1/8 fuel tank volume, then fuel gage is indicated to up-to-date position and gets into fast damping state; If be in flameout state, then whether oil meter lost efficacy to the fuel oil signal and judged; Whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(4) low fuel oil alarm control, concerning the user, it is considerable warning function that low fuel oil is reported to the police, and reminds customer requirement to refuel.Rock or stop for fear of fuel tank under steam and cause the inaccurate influence of fuel oil sampling on the slope, the present invention adopts low fuel oil to report to the police control policy also is provided.Following situation gets into low fuel oil and reports to the police: 1 fuel oil sampled value reaches alarm set point A; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police, and the fuel gage red sector; The low fuel oil of following situation entering is reported to the police and disappeared: 1 fuel oil sampled value reaches the some B of the low fuel oil warning disappearance of setting; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police and disappeared; Above-mentioned A value and B value have return difference C=A-B＞0.This value can be provided with at EEprom, and fuel tank rocks or stops and causes the fuel oil sampling inaccurate on the slope in so just well having avoided going, and bright situation of going out is suddenly neglected in the low fuel oil warning that possibly cause.
Above embodiment is the more preferably specific embodiment a kind of of the present invention, and common variation that those skilled in the art carry out in present technique scheme scope and replacement should be included in protection scope of the present invention.
Claims (1)
1. the control method of vehicle fuel table is characterized in that, comprising: fuel gage damping control, the flame-out refueling control of fuel gage, fuel gage igniting refueling control, low fuel oil alarm control; Wherein:
(1) fuel gage damping control method, at first instrument igniting, this moment the instrument outside fuel oil resistance signal of sampling; 100 milliseconds of once sampling are sampled 10 times, and sampled value is handled; Reject maxim and minimum value, replace maxim and minimum value, then these 10 sampled values are averaged with time maxim and time minimum value; And according to the data that calculate, the fuel gage pointer is the corresponding tram of indication rapidly; After this speed of a motor vehicle is judged: if the speed of a motor vehicle greater than 0km/h, car load will be in motoring condition, oil meter will get into slow damping state, success powers up or instrument re-powers if detect, fuel gage gets into fast damping state; If the speed of a motor vehicle is 0km/h, oil meter is in fast damping state;
(2) the flame-out refueling control method of fuel gage, flame-out back instrument is waited for 8 seconds, after this to the fuel gage 1 second time of sampling, 100 milliseconds are once, average, and are designated as V1; After the igniting, the fuel oil signal 1 second of sampling is once more averaged, and is designated as V2; Relatively whether difference is greater than 1/8 fuel tank volume between V2, the V1 then, if greater than 1/8 fuel tank volume, then expression is refueled successfully, and the fuel oil pointer is indicated to the pairing position of V2, and oil meter gets into fast damping state; If less than 1/8 fuel tank volume, then expression is not refueled, and the fuel oil pointer is still indication oil meter indicating positions, the i.e. pairing position of V1 before flame-out; Be in flameout state if be still, then whether oil meter lost efficacy to the fuel oil signal and judged: whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(3) fuel gage igniting refueling control, if be in igniting and the speed of a motor vehicle is 0km/h, instrument is averaged to fuel oil intelligence sample 1 second, is designated as V1; If after this speed of a motor vehicle is 0 always, and have 8 second time at least, whether instrument record fuel oil sampled value V2 and the difference that begins comparison V2, V1 be greater than 1/8 fuel tank volume; If greater than 1/8 fuel tank volume, then fuel gage is indicated to up-to-date position and gets into fast damping state; If be in flameout state, then whether oil meter lost efficacy to the fuel oil signal and judged; Whether be in open circuit or short-circuit condition; After this oil meter is indicated according to previous described damping strategy;
(4) low fuel oil alarm control, low fuel oil is reported to the police: 1 fuel oil sampled value reaches alarm set point A; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police, and the fuel gage red sector; The low fuel oil of following situation entering is reported to the police and disappeared: 1 fuel oil sampled value reaches the some B of the low fuel oil warning disappearance of setting; 2 fuel gage pointers must reach the scale mark that low fuel oil is reported to the police and disappeared; Above-mentioned A value and B value have return difference C=A-B＞0.
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| CN2010105150473A CN102452319A (en) | 2010-10-20 | 2010-10-20 | Control method for automobile fuel gauge |
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| CN2010105150473A CN102452319A (en) | 2010-10-20 | 2010-10-20 | Control method for automobile fuel gauge |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308115A (en) * | 2012-11-02 | 2013-09-18 | 许昌学院电气信息工程学院 | Method of effectively eliminating potential safety hazard of automotive digital oil meter |
| 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 |
| CN104764505A (en) * | 2015-04-08 | 2015-07-08 | 航天科技控股集团股份有限公司 | Method and device for indicating automobile fuel meter |
| CN105270177A (en) * | 2014-07-24 | 2016-01-27 | 成都天兴仪表(集团)有限公司 | Oiling judgment strategy for automotive fuel gauge |
| CN105651322A (en) * | 2016-01-14 | 2016-06-08 | 奇瑞汽车股份有限公司 | Display method of automobile fuel gauge |
| CN107144316A (en) * | 2017-04-27 | 2017-09-08 | 扬州航盛科技有限公司 | The computational methods that a kind of automobile instrument oil mass is shown |
| CN107942786A (en) * | 2017-11-15 | 2018-04-20 | 华晨汽车集团控股有限公司 | The display control program of automobile fuel gauge |
| CN108344463A (en) * | 2017-01-23 | 2018-07-31 | 长城汽车股份有限公司 | Control method, control system and the vehicle of fuel gauge of vehicle |
| CN109774459A (en) * | 2019-01-30 | 2019-05-21 | 北京福田戴姆勒汽车有限公司 | A kind of vehicle fuel amount abnormal alarm method and device |
| CN112319222A (en) * | 2020-10-23 | 2021-02-05 | 延锋伟世通电子科技（南京）有限公司 | Function display method and system based on electric vehicle power meter |
| CN113124953A (en) * | 2020-01-16 | 2021-07-16 | 广州汽车集团股份有限公司 | Metering method and device for displaying oil amount in automobile fuel gauge and related equipment |
-
2010
- 2010-10-20 CN CN2010105150473A patent/CN102452319A/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103308115B (en) * | 2012-11-02 | 2016-05-11 | 许昌学院 | A kind of method of effective elimination Digital Automobile oil meter potential safety hazard |
| CN103308115A (en) * | 2012-11-02 | 2013-09-18 | 许昌学院电气信息工程学院 | Method of effectively eliminating potential safety hazard of automotive digital oil meter |
| 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 |
| CN105270177A (en) * | 2014-07-24 | 2016-01-27 | 成都天兴仪表(集团)有限公司 | Oiling judgment strategy for automotive fuel gauge |
| CN104764505A (en) * | 2015-04-08 | 2015-07-08 | 航天科技控股集团股份有限公司 | Method and device for indicating automobile fuel meter |
| CN105651322A (en) * | 2016-01-14 | 2016-06-08 | 奇瑞汽车股份有限公司 | Display method of automobile fuel gauge |
| CN105651322B (en) * | 2016-01-14 | 2018-09-21 | 奇瑞汽车股份有限公司 | A kind of display methods of automobile fuel gauge |
| CN108344463A (en) * | 2017-01-23 | 2018-07-31 | 长城汽车股份有限公司 | Control method, control system and the vehicle of fuel gauge of vehicle |
| CN107144316B (en) * | 2017-04-27 | 2019-10-18 | 扬州航盛科技有限公司 | A kind of calculation method that automobile instrument oil mass is shown |
| CN107144316A (en) * | 2017-04-27 | 2017-09-08 | 扬州航盛科技有限公司 | The computational methods that a kind of automobile instrument oil mass is shown |
| CN107942786A (en) * | 2017-11-15 | 2018-04-20 | 华晨汽车集团控股有限公司 | The display control program of automobile fuel gauge |
| CN109774459A (en) * | 2019-01-30 | 2019-05-21 | 北京福田戴姆勒汽车有限公司 | A kind of vehicle fuel amount abnormal alarm method and device |
| CN109774459B (en) * | 2019-01-30 | 2020-09-01 | 北京福田戴姆勒汽车有限公司 | Method and device for alarming abnormality of automobile fuel quantity |
| CN113124953A (en) * | 2020-01-16 | 2021-07-16 | 广州汽车集团股份有限公司 | Metering method and device for displaying oil amount in automobile fuel gauge and related equipment |
| CN112319222A (en) * | 2020-10-23 | 2021-02-05 | 延锋伟世通电子科技（南京）有限公司 | Function display method and system based on electric vehicle power meter |
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Application publication date: 20120516 |