CN106404127A - Fuel sensor resistance ratio detection bench and detection method thereof - Google Patents
Fuel sensor resistance ratio detection bench and detection method thereof Download PDFInfo
- Publication number
- CN106404127A CN106404127A CN201610795473.4A CN201610795473A CN106404127A CN 106404127 A CN106404127 A CN 106404127A CN 201610795473 A CN201610795473 A CN 201610795473A CN 106404127 A CN106404127 A CN 106404127A
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- China
- Prior art keywords
- fuel sensor
- resistance ratio
- point
- monitor station
- fuel
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
- G01F25/20—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume of apparatus for measuring liquid level
- G01F25/24—Testing proper functioning of electronic circuits
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- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention discloses a fuel sensor resistance ratio detection bench and a detection method thereof. The detection bench includes a controller, an AD conversion unit, a keyboard display module, and an indicating lamp module; the controller is connected to the AD conversion unit and the keyboard display module; the AD conversion unit is connected to a fuel sensor; the keyboard display module includes a 6-digit nixie tube and a 16 keyboard matrix for setting preset data, starting detecting and stopping; the 6-digit nixie tube includes a 2-digit function character and a 4-digit data character; the fuel sensor includes three key points for detecting the resistance ratio; the three key points include an E point, an RES point, and an F point; and the indicating module includes a red lamp, a yellow lamp and a green lamp. The fuel sensor resistance ratio detection bench is easy to operate, is high in detection efficiency, is good in detection precision, can intelligently determine, and can preset a range so as to adapt to various types of fuel sensors.
Description
Technical field
The invention belongs to automobile technical field is and in particular to fuel sensor resistance ratio monitor station and its detection method.
Background technology
Fuel sensor is one of important sensor of automobile, motorcycle, and its function is by the liquid level in fuel oil box
Height conversion become the ratio signal of a resistance, the fuel level gauge in instrumental panel just can indicate institute in fuel tank according to this signal
Fuel Remained amount number, driver just can assess automobile accordingly or motorcycle can continue the distance that travels.
The core institution principle of fuel-quantity transducer be a variable resistance with sliding end and one can be with fuel oil liquid
The float fluctuating in face, such as Fig. 1.Under the drive of float, the position of the sliding end of this mechanism will change therewith, thus changing
The ratio of R1, R2, drives fuel oil list index, indicating currently remaining amount of fuel.That is the accuracy of R1, R2 ratio is straight
Connect the accuracy being related to fuel gauge instruction.However, in actual production process, the manufacture of product has discreteness,
It has been possible to underproof product to occur.
Content of the invention
According to above the deficiencies in the prior art, the technical problem to be solved is to propose fuel sensor resistance ratio
Value monitor station and its detection method, monitor station has that easy to operate, detection efficiency is high, accuracy of detection is good, intelligent decision and can
The features such as Multiple Type fuel sensor is adapted to preset range.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is：A kind of fuel sensor resistance ratio inspection
Scaffold tower, this monitor station includes controller, AD conversion unit, keyboard ＆ display and indicating lamp module, and described monitor station includes controller
It is connected with AD conversion unit, keyboard display module respectively, described AD conversion unit is connected with fuel sensor.Described keyboard ＆ display
Module includes 6 Digital sum pipes and the setting for preset data, starts detection and 16 keyboard matrixs stopping.Described 6 Digital sum
Pipe includes 2 bit function symbols and 4 data symbols.Described three key points being used for resistance ratio detection of fuel sensor.Described 3
Key point includes E point (fuel level is sky), RES point (oil quantity alarming), F point (fuel level is full).Described indicating lamp module
Including red colored lamp, amber light and green light.
A kind of detection method of fuel sensor resistance ratio monitor station is it is characterised in that the method comprises the following steps：
Step one, system are initialized, and read prefab data, and that connects fuel sensor opens a K；Step 2, logical
Cross AD conversion unit and read fuel sensor voltage V1, calculate the ratio of R1 and R2；Step 3, whether compare ratio in E point
In the range of, if red light is lighted, yellow, green light goes out, system finishing；If not operating procedure four；Step 4, compare ratio and be
In the no point range in RES, if amber light is lighted, red, green light goes out, system finishing；If not operating procedure five；Step 5,
Whether in F point range, if green light is lighted, yellow, red light goes out relatively ratio, system finishing；If not red, yellow, and green three
Lamp goes out entirely.
Present invention has the advantages that:According to coherent detection standard it is necessary to three key points to every product are E point
(empty), RES point (warning), the resistance ratio of F point (expiring) are detected, if testing result is all within the scope of default
Qualified products, otherwise for unqualified, should give rejecting.The mode of detection is the fuel level giving certain point, measures R1, R2
Resistance ratio, then judge this ratio whether within default ratio range, if true, represent that the ratio of this point is to close
Lattice, then qualified display lamp is lighted accordingly, and otherwise, qualified display lamp extinguishes accordingly.Detect other two points successively, if
Three points are all qualified, then product is qualified, otherwise for unqualified.This equipment (automobile, the detection of motorcycle fuel sensor resistance ratio
Platform) it is exactly to design for realizing above-mentioned detection operation and specially, monitor station has that easy to operate, detection efficiency is high, accuracy of detection is good,
Intelligent decision and can with preset range adapt to Multiple Type fuel sensor the features such as.Deeply sensed by automobile, motorcycle fuel
The welcome of device factory.
Brief description
Below the labelling of the content expressed by this specification accompanying drawing and in figure is briefly described：
Fig. 1 is the fuel-quantity transducer ultimate principle of the specific embodiment of the present invention.
Fig. 2 is the system construction drawing of the specific embodiment of the present invention；
Fig. 3 is the flow chart of the specific embodiment detection method of the present invention.
Specific embodiment
Below against accompanying drawing, by the description to embodiment, for example involved each component of the specific embodiment of the present invention
Shape, construction, the mutual alignment between each several part and annexation, the effect of each several part and operation principle, manufacturing process and
Operate with method etc., is described in further detail, to help those skilled in the art to the inventive concept of the present invention, technology
Scheme has more complete, accurate and deep understanding.
As shown in Fig. 2 system controller adopts 51 single-chip microcomputers, all led to using serial between circuit, and each module for simplifying
News mode.16 key boards are mainly used in the setting of preset data, start detection and stop, 6 data effective in showing 2 bit functions
Symbol and 4 data, 3 qualified display lamps divide red, yellow, and green three kinds of colors, the lighting or extinguish of display lamp, represent respectively E point,
RES point and F point qualified and unqualified.ADC adopts the high-precision AD conversion chip of 12, to ensure that certainty of measurement conforms to
Ask.
Because desired result is the ratio of R1, R2, such as Fig. 2, that is, (V0-V1)/V1, V0 is full scale value (ADC chip
For 12, the corresponding digital quantity of V0 is 4096), read the value of V1 by ADC, you can calculate the ratio of R1, R2, computing formula
As follows：
R1, R2 ratio=(4096-V1)/V1
From calculating work(formula, certainty of measurement is only dependent upon the conversion accuracy of ADC, the height being adopted due to this monitor station
The AD conversion chip that precision is 12, therefore certainty of measurement are entirely capable of meeting design requirement.
1st, the detection range of the resistance of fuel sensor is 1 Ω～2K Ω, and accuracy of detection is less than measured value ± 1%；Ratio
Indication range be 0～9999, detection data at most retains three decimals.
2nd, monitor station detection process, in real time by current ratio respectively with E point, RES point, F point setting data
Compare, which interval current ratio falls in, then this display lamp is lighted, and otherwise extinguishes.
Above in conjunction with accompanying drawing, the present invention is exemplarily described it is clear that the present invention implements is not subject to aforesaid way
Restriction, as long as employing the improvement of various unsubstantialities that method of the present invention design and technical scheme are carried out, or without changing
Enter and the design of the present invention and technical scheme are directly applied to other occasions, all within protection scope of the present invention.This
Bright protection domain should be defined by the protection domain that claims are limited.
Claims (8)
1. a kind of fuel sensor resistance ratio monitor station it is characterised in that this monitor station include controller, AD conversion unit,
Keyboard ＆ display and indicating lamp module, described monitor station is included controller and is connected with AD conversion unit, keyboard display module respectively, institute
State AD conversion unit to be connected with fuel sensor.
2. fuel sensor resistance ratio monitor station according to claim 1 is it is characterised in that described keyboard display module
Setting including 6 Digital sum pipes with for preset data, startup detection and 16 keyboard matrixs stopping.
3. fuel sensor resistance ratio monitor station according to claim 2 is it is characterised in that described 6 Digital sum pipe bags
Include 2 bit function symbols and 4 data symbols.
4. fuel sensor resistance ratio monitor station according to claim 1 is it is characterised in that described fuel sensor three
The individual key point for resistance ratio detection.
5. fuel sensor resistance ratio monitor station according to claim 3 is it is characterised in that described 3 key point bags
Include fuel level be null point E point, fuel level alarm point RES point, fuel level be to work to the last minute F point.
6. fuel sensor resistance ratio monitor station according to claim 1 is it is characterised in that described indicating lamp module bag
Include red colored lamp, amber light and green light.
7. according to claim 1-6 any one fuel sensor resistance ratio monitor station detection method, its feature exists
In the method comprises the following steps：
Step one, system are initialized, and read prefab data, connect the switch K of fuel sensor；
Step 2, by AD conversion unit read fuel sensor voltage V1, calculate the ratio of R1 and R2；
Step 3, compare ratio whether in E point range, if red light is lighted, yellow, green light goes out, system finishing；If not
Operating procedure four；
Step 4, compare ratio whether in RES point range, if amber light is lighted, red, green light goes out, system finishing；If no
It is operating procedure five；
Step 5, compare ratio whether in F point range, if green light is lighted, yellow, red light goes out, system finishing；If not
Red, yellow, and green three lamp goes out entirely.
8. the detection method of fuel sensor resistance ratio monitor station according to claim 1 is it is characterised in that described step
The ratio of rapid two R1, R2 is calculated by formula R1, R2 ratio=(4096-V1)/V1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795473.4A CN106404127A (en) | 2016-08-31 | 2016-08-31 | Fuel sensor resistance ratio detection bench and detection method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610795473.4A CN106404127A (en) | 2016-08-31 | 2016-08-31 | Fuel sensor resistance ratio detection bench and detection method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106404127A true CN106404127A (en) | 2017-02-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610795473.4A Pending CN106404127A (en) | 2016-08-31 | 2016-08-31 | Fuel sensor resistance ratio detection bench and detection method thereof |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1260800A2 (en) * | 2001-05-23 | 2002-11-27 | Volkswagen Aktiengesellschaft | Method and device for determining the filling level in fuel containers |
| CN101696887A (en) * | 2009-10-20 | 2010-04-21 | 中国汽车技术研究中心 | Universalization test system for endurance performance of automobile digital instrument and detecting method thereof |
| CN202676254U (en) * | 2012-07-18 | 2013-01-16 | 上海大学 | Quality test device of LABVIEW-based electric resistance type oil level sensor |
| CN103234572A (en) * | 2013-05-11 | 2013-08-07 | 安徽工程大学 | Check system for LabVIEW-based automobile instrument |
| CN104089684A (en) * | 2014-07-11 | 2014-10-08 | 重庆长安汽车股份有限公司 | Automobile fuel gauge calibration method |
| CN105606180A (en) * | 2015-12-28 | 2016-05-25 | 奇瑞汽车股份有限公司 | Sampling circuit of automotive fuel gauge and fault diagnosis method thereof |
| CN206496820U (en) * | 2016-08-31 | 2017-09-15 | 芜湖天宇科技开发有限公司 | Fuel sensor resistance ratio monitor station |
-
2016
- 2016-08-31 CN CN201610795473.4A patent/CN106404127A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1260800A2 (en) * | 2001-05-23 | 2002-11-27 | Volkswagen Aktiengesellschaft | Method and device for determining the filling level in fuel containers |
| CN101696887A (en) * | 2009-10-20 | 2010-04-21 | 中国汽车技术研究中心 | Universalization test system for endurance performance of automobile digital instrument and detecting method thereof |
| CN202676254U (en) * | 2012-07-18 | 2013-01-16 | 上海大学 | Quality test device of LABVIEW-based electric resistance type oil level sensor |
| CN103234572A (en) * | 2013-05-11 | 2013-08-07 | 安徽工程大学 | Check system for LabVIEW-based automobile instrument |
| CN104089684A (en) * | 2014-07-11 | 2014-10-08 | 重庆长安汽车股份有限公司 | Automobile fuel gauge calibration method |
| CN105606180A (en) * | 2015-12-28 | 2016-05-25 | 奇瑞汽车股份有限公司 | Sampling circuit of automotive fuel gauge and fault diagnosis method thereof |
| CN206496820U (en) * | 2016-08-31 | 2017-09-15 | 芜湖天宇科技开发有限公司 | Fuel sensor resistance ratio monitor station |
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