CN102937472A - Display method for vehicle segment code type fuel gauge - Google Patents
Display method for vehicle segment code type fuel gauge Download PDFInfo
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- CN102937472A CN102937472A CN2012104244260A CN201210424426A CN102937472A CN 102937472 A CN102937472 A CN 102937472A CN 2012104244260 A CN2012104244260 A CN 2012104244260A CN 201210424426 A CN201210424426 A CN 201210424426A CN 102937472 A CN102937472 A CN 102937472A
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- fuel gauge
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- control module
- segment code
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Abstract
The invention discloses a display method for a vehicle segment code type fuel gauge. The display method is characterized in that a floater drives a slide rheostat to transmit a changed resistance value to a control unit of a vehicle meter, the control unit drives a liquid crystal display (LCD) display screen to display oil quantity, and the control unit drives the LCD display screen in a slow damping mode to display figured out fuel volume. The display method for the vehicle segment code type fuel gauge has the advantages that the stable and accurate fuel quantity indication is achieved, excess costs are not required, the costs are low, the change of the existing devices is small, and the display method is suitable for large-range transformation.
Description
Technical field
The present invention relates to the fuel gauge demonstration of automobile instrument, particularly a kind of display packing of automobile segment code type fuel gauge.
Background technology
Automobile fuel gauge is to show consumption process that fuel oil is real-time and the steady indication in the consumption process, but because actual driving situation changeable often caused in actual use, the abnormal conditions such as some swing up and down can appear in fuel gauge.For example a certain moment in startup procedure, the fuel gauge indication has descended one section from full position, but opens for a moment or again igniting again, and fuel gauge can be indicated again full position.
Present fuel meter sensor adopts Floater Structure mostly.Because rocking of vehicle body, the change in location of float is very large.What add employing is that most of automobiles adopt the liquid crystal segment encode to show, the fuel oil segment encode meeting phenomenon of beating back and forth up and down can appear in critical point place at the edge.
For above-mentioned problem, a kind of novel fuel gauge display packing is provided, what realize the fuel oil indication steadily and accurately is the problem that prior art need to solve.
Summary of the invention
Technical matters to be solved by this invention is, a kind of display packing of automobile segment code type fuel gauge is provided, to realize steadily and the accurately purpose of fuel oil indication.
For achieving the above object, technical scheme of the present invention is, a kind of display packing of automobile segment code type fuel gauge, it is characterized in that: described display packing is that float drives slide rheostat the resistance value that changes is passed to the control module of automobile instrument, and control module drives LCD display to carry out oil mass and show; Control module adopts slow damping mode to drive the LCD display demonstration for the volume of fuel that calculates.
Be provided with the A/D sample circuit between described slide rheostat and the control module, analog quantity is converted to digital quantity.
When described control module surpasses 10.5% for the volume of fuel variable quantity that calculates, do not process.
Described control module carries out 2% sluggish Graphics Processing when the critical point of every section demonstration of LCD display.
A kind of display packing of automobile segment code type fuel gauge owing to adopt above-mentioned method, the invention has the advantages that: the steadily and accurately purpose that 1, has realized the fuel oil indication; 2, need not to increase too much cost, cost is lower; 3, less to the existing equipment change, be fit to transform on a large scale.
Description of drawings
The present invention is further detailed explanation below in conjunction with the drawings and specific embodiments;
Fig. 1 is the structured flowchart of the display packing of a kind of automobile segment code type of the present invention fuel gauge;
Fig. 2 is the software flow pattern of the display packing of a kind of automobile segment code type of the present invention fuel gauge;
In Fig. 1,1, control module; 2, float; 3, slide rheostat; 4, LCD display.
Embodiment
Because the segment encode indication is discontinuous, so compare with pointer oil meter, the phenomenon of segment encode bob occurs easily.For example: the instrument of existing 8 lattice indication, in the examination of actual road, can find, fuel gauge often can occur and be in first wherein a certain lattice, opened the lattice that for a moment descend, does not cross how long have can rising one lattice.The invention solves the problems referred to above.As shown in Figure 1, the present invention passes to the control module 1 of automobile instrument for drive slide rheostats 3 for float 2 with the resistance value that changes, and control module 1 drives LCD display 4 to carry out oil mass and show; Control module 1 adopts slow damping mode to drive LCD display 4 demonstrations for the volume of fuel that calculates.Be provided with the A/D sample circuit between slide rheostat 3 and the control module 1, analog quantity is converted to digital quantity.
Wherein, when control module 1 surpasses 10.5% for the volume of fuel variable quantity that calculates, do not process.Control module 1 carries out 2% sluggish Graphics Processing when the critical point of LCD display 4 every section demonstrations.
The in succession mechanism of a slide rheostat 3 of float 2 in the fuel tank of the present invention, up and down fluctuation when liquid level, the height that can cause float 2 positions changes, slide rheostat 3 can be exported different resistances to instrument like this, the control module 1 of instrument is by the A/D sample circuit, analog quantity is converted into digital quantity, and then system software drives the current Fuel Remained amount of LCD display 4 demonstrations.
As shown in Figure 2, concrete method method is that the method that adopts slow damping, sluggishness and maximum value to abandon solves: 1, slow damping method: after the igniting, instrument is processed stable resistance value of sampling by software, calculates present fuel oil volume, is denoted as (V1); In the process of reality driving, the per second current resistance value of all can sampling is calculated current fuel oil volume, is denoted as (V2).The value of this current sampling can not drive the fuel oil indication at once, but compares with V1, works as V1〉V2, V1 just reduces according to slow damping time, and as V1＜V2, V1 is just according to increasing slow damping time.2, sluggish method: take the fuel gauge of 8 lattice indication as example, each lattice is oil masses of 12.5%.When V1 dropped to 87.5% oil mass, fuel gauge was still indicated in full position, until V1 is when dropping to 87.5%-2%, fuel gauge is just from the full potential drop lattice that fall.In like manner, when V1 rose to 87.5% oil mass, fuel gauge was still indicated at 7 lattice, until V1 is when rising to 87.5%+2%, fuel gauge just can rise to full position from 7 lattice.3, the method abandoned of maximum value: as | V1-V2|〉10.5% the time, think that V2 is invalid value, discard, do not participate in calculating.
The above has carried out exemplary description to the present invention by reference to the accompanying drawings; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted technical solution of the present invention to carry out, or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (4)
1. the display packing of an automobile segment code type fuel gauge, it is characterized in that: described display packing is that float (2) drives slide rheostat (3) resistance value that changes is passed to the control module (1) of automobile instrument, and control module (1) drives LCD display (4) to carry out oil mass and show; Control module (1) adopts slow damping mode to drive LCD display (4) demonstration for the volume of fuel that calculates.
2. the display packing of a kind of automobile segment code type fuel gauge according to claim 1 is characterized in that: be provided with the A/D sample circuit between described slide rheostat (3) and the control module (1).
3. the display packing of a kind of automobile segment code type fuel gauge according to claim 1 is characterized in that: when described control module (1) surpasses 10.5% for the volume of fuel variable quantity that calculates, do not process.
4. the display packing of a kind of automobile segment code type fuel gauge according to claim 1, it is characterized in that: described control module (1) carries out 2% sluggish Graphics Processing when the critical point of every section demonstration of LCD display (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104244260A CN102937472A (en) | 2012-10-30 | 2012-10-30 | Display method for vehicle segment code type fuel gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104244260A CN102937472A (en) | 2012-10-30 | 2012-10-30 | Display method for vehicle segment code type fuel gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102937472A true CN102937472A (en) | 2013-02-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN2012104244260A Pending CN102937472A (en) | 2012-10-30 | 2012-10-30 | Display method for vehicle segment code type fuel gauge |
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| CN (1) | CN102937472A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105651322A (en) * | 2016-01-14 | 2016-06-08 | 奇瑞汽车股份有限公司 | Display method of automobile fuel gauge |
| CN108801382A (en) * | 2018-07-27 | 2018-11-13 | 浙江中科领航汽车电子有限公司 | A kind of method and system for preventing vehicle fuel list index from shaking |
Citations (9)
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|---|---|---|---|---|
| US4782699A (en) * | 1986-11-17 | 1988-11-08 | General Motors Corporation | Pulsed fuel level indicating system |
| KR20010059134A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Fuel measuring device of vehicle |
| CN1325097A (en) * | 2000-05-20 | 2001-12-05 | 朱铁成 | Liquid volume meter with digital display |
| CN2506474Y (en) * | 2001-06-14 | 2002-08-21 | 武汉全威活塞环有限公司 | Electronic digital controlled fuel measurer for car |
| CN2859475Y (en) * | 2006-01-14 | 2007-01-17 | 肖传金 | Vehicle-mounted electronic digital indication oil meter |
| CN200982880Y (en) * | 2006-12-08 | 2007-11-28 | 南京工程学院 | Measurement device for digital precise vehicular fuel |
| US20100089306A1 (en) * | 2008-09-04 | 2010-04-15 | Stant Manufacturing Inc. | Portable fuel gauge for fuel tank |
| CN101871804A (en) * | 2010-06-13 | 2010-10-27 | 奇瑞汽车股份有限公司 | Method and device for displaying fuel quantity |
| CN102338655A (en) * | 2010-07-22 | 2012-02-01 | 联合汽车电子有限公司 | Vehicle oil level sensor and implementation method thereof |
-
2012
- 2012-10-30 CN CN2012104244260A patent/CN102937472A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4782699A (en) * | 1986-11-17 | 1988-11-08 | General Motors Corporation | Pulsed fuel level indicating system |
| KR20010059134A (en) * | 1999-12-30 | 2001-07-06 | 이계안 | Fuel measuring device of vehicle |
| CN1325097A (en) * | 2000-05-20 | 2001-12-05 | 朱铁成 | Liquid volume meter with digital display |
| CN2506474Y (en) * | 2001-06-14 | 2002-08-21 | 武汉全威活塞环有限公司 | Electronic digital controlled fuel measurer for car |
| CN2859475Y (en) * | 2006-01-14 | 2007-01-17 | 肖传金 | Vehicle-mounted electronic digital indication oil meter |
| CN200982880Y (en) * | 2006-12-08 | 2007-11-28 | 南京工程学院 | Measurement device for digital precise vehicular fuel |
| US20100089306A1 (en) * | 2008-09-04 | 2010-04-15 | Stant Manufacturing Inc. | Portable fuel gauge for fuel tank |
| CN101871804A (en) * | 2010-06-13 | 2010-10-27 | 奇瑞汽车股份有限公司 | Method and device for displaying fuel quantity |
| CN102338655A (en) * | 2010-07-22 | 2012-02-01 | 联合汽车电子有限公司 | Vehicle oil level sensor and implementation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN108801382A (en) * | 2018-07-27 | 2018-11-13 | 浙江中科领航汽车电子有限公司 | A kind of method and system for preventing vehicle fuel list index from shaking |
| CN108801382B (en) * | 2018-07-27 | 2020-03-03 | 浙江中科领航汽车电子有限公司 | Method and system for preventing pointer of automobile fuel gauge from shaking |
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Application publication date: 20130220 |