CN104089684B - Automobile fuel gauge calibration method - Google Patents
Automobile fuel gauge calibration method Download PDFInfo
- Publication number
- CN104089684B CN104089684B CN201410329473.6A CN201410329473A CN104089684B CN 104089684 B CN104089684 B CN 104089684B CN 201410329473 A CN201410329473 A CN 201410329473A CN 104089684 B CN104089684 B CN 104089684B
- Authority
- CN
- China
- Prior art keywords
- fuel
- key point
- point
- resistance
- sensor resistance
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The invention discloses an automobile fuel gauge calibration method. Initial fuel amount parameters are determined; the whole automobile fuel matching test is carried out, fuel filling is carried out on a whole automobile, the fuel sensor resistance value of a key point is input through calibration software and is written into a stepping motor control program through a CAN device, the stepping motor control program is stored in an instrument control module in advance, searches for the motor microstep value corresponding to a stepping motor based on the fuel sensor resistance value and controls the stepping motor to rotate based on the motor microstep value, a fuel gauge pointer is driven to rotate along with the rotation of the stepping motor, and if the fuel gauge pointer points at the key point, the fuel sensor resistance value is the fuel sensor resistance value calibration amount of the key point, and next filling is carried out; if the fuel gauge pointer does not point at the key point, the fuel sensor resistance value of the key point is modified again through the calibration software until the fuel gauge pointer points at the key point. The automobile fuel gauge calibration method is easy to operate and high in efficiency.
Description
Technical field
The invention belongs to the scaling method of automobile combination meter is and in particular to a kind of scaling method of automobile fuel gauge.
Background technology
Combination instrument is the interface of man-machine interaction in automobile, and fuel gauge is the important component part of combination instrument, is used for
Indicate the remaining situation of current fuel tank intermediate fuel oil.This table should indicate correctly, to accurately reflect the situation of current oil tank fuel, really
Escort the safety sailed, and the demarcation of fuel gauge is the key ensureing its instruction accuracy.
Therefore, it is necessary to develop a kind of scaling method of automobile fuel gauge.
Content of the invention
It is an object of the invention to provide a kind of scaling method of automobile fuel gauge simple to operate, efficiency high.
A kind of scaling method of automobile fuel gauge of the present invention, comprises the following steps：
Step one, fuel tank is positioned over horizontal plane, to filling liquid in fuel tank in units of AL, wherein, 1≤A≤
2, often fill the height once measuring liquid level afterwards, and recording liquid volume and the corresponding relation of liquid level, it is filled into oil always
Till case is filled；
Step 2, fixing fuel pump, determine the fixing point of float connecting rod, enable float connecting rod with this fixing point as circle
Point, the length of float connecting rod rotate on vertical plane for radius, rotate float connecting rod, make the float of fuel sensor gradually
Move to extreme higher position from extreme lower position, and measure the change in resistance of fuel sensor with universal meter, when the resistance of universal meter measurement
When value changes, now float center, to the distance of extreme lower position place horizontal plane, and records float center to minimum for measurement
The distance of position place horizontal plane and the corresponding relation of resistance；
Step 3, according to described step 2, several fuel pumps are tested；
The corresponding relation of step 4, the liquid capacity according to described step one gained and liquid level and described step 2 and
The distance to extreme lower position place horizontal plane for the float center of step 3 gained and the corresponding relation of resistance, draw volume of fuel tank
Corresponding relation with fuel sensor resistance；
Choose several in step 5, the volume of fuel tank in described step 4 gained and fuel sensor resistance corresponding relation
Key point is as initial fuel amount parameter；
Step 6, the key point according to selected by described step 5 carry out car load fuel oil match test：By stationary vehicle in
Horizontal level, computer is electrically connected with CAN device, and CAN device is electrically connected in instrument control module by diagnostics port, uses
Calibration software on computers is installed, carries out input and the display of amount of fuel parameter by this calibration software；Basis on car load
The volume of several key points carries out fuel filling from small to large successively, after often filling a fuel oil, first passes through calibration software defeated
Enter the fuel sensor resistance of this key point, this fuel sensor resistance is written to by CAN device and is stored in advance in instrument control
In step motor control program in molding block, it is right that motor control program is based on this fuel sensor resistance lookup stepper motor institute
The motor micro-stepping value answered, and control stepper motor to rotate based on this motor micro-stepping value, this motor micro-stepping value is sent to electricity simultaneously
Brain shows, drives fuel gauge indicators turn while stepper motor rotates, if fuel oil list index indicates at this key point, should
Fuel sensor resistance is the fuel sensor resistance scalar quantity of this key point, and is filled next time；If fuel gauge refers to
Pin does not indicate at this key point, then change the fuel sensor resistance of this key point by calibration software, until fuel gauge refers to
Pin indicates that the fuel sensor resistance being then ultimately written is the resistance of sensor mark corresponding to this key point at this key point
Quantitative, then filled, until all key points are demarcated completing next time.
Several key points of described step 5 be respectively empty oil level point, 1/4 oil level point, 1/2 oil level point, 3/4 oil level point and
Full oil level point.
A=1 in described step one.
The scaling method of automobile fuel gauge of the present invention has advantages below：
（1）The present invention only needs a computer, a CAN device, a universal meter, a ruler and a measuring cup to get final product in fact
Existing, this scaling method is simple and easy to be realized, and the cost putting into is few.
（2）In car load fuel oil match test, by computer, directly modification is preset at the stepping electricity in instrument control module
The amount of fuel parameter value of machine control program to be mated with real vehicle；Avoid repeating to change step motor control program, programming journey
Sequence, test program and carry out car load fuel oil match test, substantially reduce test period and verification experimental verification expense, and operate
Very simple.
（3）The parameters such as fuel sensor resistance, oil mass and motor micro-stepping value intuitively can be shown by computer, makes calibration process
Directly perceivedization, efficient and precision.
Brief description
Fig. 1 is volume and the liquid level corresponding relation figure of the present invention；
Fig. 2 is that the distance of extreme lower position place horizontal plane and output resistance are arrived in the fuel sensor float center of the present invention
Corresponding relation；
Fig. 3 is volume of fuel tank and the fuel sensor resistance value corresponding relation of the present invention；
Fig. 4 is the flow chart of the present invention；
Fig. 5 is the amount of fuel parameter calibration interface of the present invention；
Fig. 6 is the theory diagram of the change amount of fuel parameter of the present invention.
Specific embodiment
The invention will be further described below in conjunction with the accompanying drawings.
A kind of scaling method of automobile fuel gauge as shown in Figures 1 to 4, comprises the following steps：
Step one, fuel tank is positioned over horizontal plane, with 1L（Or 2L）For unit to filling liquid in fuel tank, often fill
Once measure the height of liquid level afterwards, and the corresponding relation of recording liquid volume and liquid level, be filled into always fuel tank fill for
Only.
Step 2, fixing fuel pump, determine the fixing point of float connecting rod, enable float connecting rod with this fixing point as circle
Point, the length of float connecting rod rotate on vertical plane for radius, rotate float connecting rod, make by the float of fuel sensor by
Gradually move to extreme higher position from extreme lower position, and measure the change in resistance of fuel sensor with universal meter, when universal meter measurement
When resistance changes, now float center, to the distance of extreme lower position place horizontal plane, and records float center to for measurement
The distance of lower position place horizontal plane and the corresponding relation of resistance.
Step 3, according to described step 2, three fuel pumps are tested.
The corresponding relation of step 4, the liquid capacity according to described step one gained and liquid level and described step 2 and
The distance to extreme lower position place horizontal plane for the float center of step 3 gained and the corresponding relation of resistance, draw volume of fuel tank
Corresponding relation with fuel sensor resistance.
Five are chosen in step 5, the volume of fuel tank in described step 4 gained and fuel sensor resistance corresponding relation
Key point is respectively hole oil level point as initial fuel amount parameter, five key points（I.e. E）, 1/4 oil level point, 1/2 oil level point, 3/
4 oil level points and full oil level point（I.e. F）.
Step 6, five key points according to selected by described step 5 carry out car load fuel oil match test：Vehicle is quiet
Terminate in horizontal level, computer electrically connected with CAN device, CAN device is electrically connected in instrument control module by diagnostics port,
With the calibration software installed on computers, carry out input and the display of amount of fuel parameter by this calibration software；On car load
Volume according to five key points carries out fuel filling from small to large successively, and after often filling a fuel oil, operating personnel are led to first
Cross the fuel sensor resistance that calibration software inputs this key point, this fuel sensor resistance is written in advance by CAN device
It is stored in the step motor control program in instrument control module, motor control program is based on this fuel sensor resistance and searches
Motor micro-stepping value corresponding to stepper motor, and control stepper motor to rotate based on this motor micro-stepping value, simultaneously will be micro- for this motor
Step value is sent to computer and shows, drives fuel gauge indicators turn while stepper motor rotates, if fuel oil list index indicates at this
At key point, then this fuel sensor resistance is the fuel sensor resistance scalar quantity of this key point, and carries out adding next time
Note；If fuel oil list index does not indicate at this key point, operating personnel are passed by the fuel oil that calibration software changes this key point
Sensor resistance, the fuel sensor resistance of new input is written to the step motor control in instrument control module by CAN device
In program, and the fuel sensor resistance of last write is covered, often change a fuel sensor resistance, motor control journey
Sequence will search the motor micro-stepping value corresponding to stepper motor based on the fuel sensor resistance of new input, and be based on this motor micro-stepping
Value controls stepper motor to rotate, until fuel oil list index indicates at this key point, then the fuel sensor resistance being ultimately written
It is the resistance of sensor scalar quantity corresponding to this key point, then is filled next time, until all key points are demarcated completing.
As shown in Figure 5 and Figure 6, after computer is connected in instrument control module by CAN device, with the mark on computer
Determine software, operating personnel send entrance mode of extension request by calibration software to instrument control module, then to instrument control
Module sends safety certification request, if safety certification is passed through, operating personnel can be by the program interface input combustion of calibration software
Oil sensor resistance, this fuel sensor resistance is delivered to the EEPROM of instrument control module in the form of diagnosing message（I.e.：Band
EEPROM）, this diagnosis message includes fuel sensor resistance and this fuel sensor resistance needs
The physical address of write, after instrument control module receives this diagnosis message, finds this physical address and by fuel sensor
Resistance writes in this physical address, finally re-maps in the logical address corresponding to this physical address, thus realizing to preset
Data in the step motor control program in instrument control module is modified.
So that 1/2 oil level point is for 20L fuel oil as a example illustrate below：
Fill the fuel oil of 20L first to car load, whether the pointer then observing fuel gauge indicates in the position of 1/2 oil level point
Put, failing to instruction, in the position of 1/2 oil level point, changes fuel sensor resistance by computer, if the pointer of fuel gauge refers to
Show the position in 1/2 oil level point, then this fuel sensor resistance is the resistance of sensor mark corresponding to key point 1/2 oil level point
Quantitative.If the pointer of fuel gauge does not indicate the position in 1/2 oil level point yet, continue modification fuel sensor resistance until fuel gauge
Pointer indicate at the position of 1/2 oil level point.After the completion for the treatment of that this key point is demarcated, carry out next key point in this way
Demarcation.
Claims (3)
1. a kind of scaling method of automobile fuel gauge is it is characterised in that comprise the following steps：
Step one, fuel tank is positioned over horizontal plane, to filling liquid in fuel tank in units of AL, wherein, 1≤A≤2, often
Filling once measures the height of liquid level afterwards, and recording liquid volume and the corresponding relation of liquid level, is filled into fuel tank dress always
Till full；
Step 2, fixing fuel pump, determine the fixing point of float connecting rod, enable float connecting rod with this fixing point as round dot,
The length of float connecting rod rotates on vertical plane for radius, rotates float connecting rod, make the float of fuel sensor gradually from
Extreme lower position moves to extreme higher position, and measures the change in resistance of fuel sensor with universal meter, when the resistance of universal meter measurement
When changing, now float center, to the distance of extreme lower position place horizontal plane, and records float center to lowest order for measurement
Put the distance of place horizontal plane and the corresponding relation of resistance；
Step 3, according to described step 2, several fuel pumps are tested；
The corresponding relation of step 4, the liquid capacity according to described step one gained and liquid level and described step 2 and step
The distance to extreme lower position place horizontal plane for the float center of three gained and the corresponding relation of resistance, draw volume of fuel tank and combustion
The corresponding relation of oil sensor resistance；
Several keys are chosen in step 5, the volume of fuel tank in described step 4 gained and fuel sensor resistance corresponding relation
Point is as initial fuel amount parameter；
Step 6, the key point according to selected by described step 5 carry out car load fuel oil match test：By stationary vehicle in level
Position, computer is electrically connected with CAN device, CAN device is electrically connected in instrument control module by diagnostics port, with installation
Calibration software on computers, carries out input and the display of amount of fuel parameter by this calibration software；According to several on car load
The volume of key point carries out fuel filling from small to large successively, and after often filling a fuel oil, first passing through calibration software input should
The fuel sensor resistance of key point, this fuel sensor resistance is written to by CAN device and is stored in advance in instrument control mould
In step motor control program in block, motor control program is searched corresponding to stepper motor based on this fuel sensor resistance
Motor micro-stepping value, and control stepper motor to rotate based on this motor micro-stepping value, this motor micro-stepping value is sent to computer simultaneously and shows
Show, while stepper motor rotates, drive fuel gauge indicators turn, if fuel oil list index indicates at this key point, this fuel oil
Resistance of sensor is the fuel sensor resistance scalar quantity of this key point, and is filled next time；If fuel oil list index is not
Instruction at this key point, then changes the fuel sensor resistance of this key point by calibration software, until fuel oil list index refers to
Show at this key point, then the resistance of sensor that the fuel sensor resistance being ultimately written is corresponding to this key point is demarcated
Amount, then filled, until all key points are demarcated completing next time.
2. automobile fuel gauge according to claim 1 scaling method it is characterised in that：Several keys of described step 5
Point is respectively empty oil level point, 1/4 oil level point, 1/2 oil level point, 3/4 oil level point and full oil level point.
3. automobile fuel gauge according to claim 1 and 2 scaling method it is characterised in that：A=in described step one
1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329473.6A CN104089684B (en) | 2014-07-11 | 2014-07-11 | Automobile fuel gauge calibration method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410329473.6A CN104089684B (en) | 2014-07-11 | 2014-07-11 | Automobile fuel gauge calibration method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104089684A CN104089684A (en) | 2014-10-08 |
| CN104089684B true CN104089684B (en) | 2017-02-15 |
Family
ID=51637422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410329473.6A Active CN104089684B (en) | 2014-07-11 | 2014-07-11 | Automobile fuel gauge calibration method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104089684B (en) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482992B (en) * | 2014-11-27 | 2018-04-17 | 华晨汽车集团控股有限公司 | A kind of control method of automobile fuel gauge |
| CN105181068A (en) * | 2015-06-03 | 2015-12-23 | 伊飚科技(深圳)有限公司 | Liquid volume measuring device based on ultrasonic wave, liquid volume measuring method and monitoring method |
| CN105486373B (en) * | 2016-01-19 | 2018-12-25 | 黄亮 | A kind of measurement method of fluid reservoir and liquid weight |
| CN106227197A (en) * | 2016-08-31 | 2016-12-14 | 上海伟世通汽车电子系统有限公司 | The autocontrol method of automobile instrument artifical resistance input |
| CN106404127A (en) * | 2016-08-31 | 2017-02-15 | 芜湖天宇科技开发有限公司 | Fuel sensor resistance ratio detection bench and detection method thereof |
| CN107063400B (en) * | 2016-11-18 | 2019-04-16 | 安徽江淮汽车集团股份有限公司 | A kind of calibration system of automobile instrument and fuel tank |
| CN106908115B (en) * | 2017-02-24 | 2019-11-26 | 北京中位科技有限公司 | Vehicle fuel tank fuel quantity scaling method and system |
| CN108656951A (en) * | 2017-03-31 | 2018-10-16 | 华晨汽车集团控股有限公司 | A kind of control method of automobile fuel gauge |
| CN109579949A (en) * | 2017-09-28 | 2019-04-05 | 惠州市德赛西威汽车电子股份有限公司 | A method of judging that oil float subcard is stagnant |
| CN109084867B (en) * | 2018-07-11 | 2020-06-30 | 黑龙江天有为电子有限责任公司 | Automobile combination instrument fuel simulation test system and method |
| CN108917889B (en) * | 2018-07-26 | 2020-03-24 | 安徽江淮汽车集团股份有限公司 | Fuel gauge testing system and method |
| CN110553703B (en) * | 2019-10-14 | 2021-04-23 | 广州创锐车用电器有限公司 | Calibration information generation method and system based on oil meter |
| CN110987130B (en) * | 2019-12-26 | 2020-12-18 | 安为机电设备制造(上海)有限公司 | Flowmeter detection system and detection method thereof |
| CN112440740A (en) * | 2020-12-01 | 2021-03-05 | 东风越野车有限公司 | Vehicle power take-off system and power take-off and calibration method thereof |
| CN113532565A (en) * | 2021-06-03 | 2021-10-22 | 惠州市德赛西威汽车电子股份有限公司 | Automobile fuel tank fuel simulation test method and system |
| CN116499544B (en) * | 2023-06-30 | 2023-09-22 | 广东润宇传感器股份有限公司 | Storage tank volume calibration method, system, electronic equipment and storage medium |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101699224A (en) * | 2009-10-19 | 2010-04-28 | 中国汽车技术研究中心 | LabVIEW and PXI based automobile digital instrument testing system |
| CN201754101U (en) * | 2010-07-09 | 2011-03-02 | 北汽福田汽车股份有限公司 | Fuel sensor |
| CN102042857A (en) * | 2009-10-15 | 2011-05-04 | 上海思增工贸发展有限公司 | GPS (Global Position System) monitoring method for automotive fuel oil volume |
| US8602384B2 (en) * | 2009-07-31 | 2013-12-10 | Capstone Metering Llc | Water meter |
| WO2014100318A1 (en) * | 2012-12-21 | 2014-06-26 | Shell Oil Company | Method for calibration of indirectly measured quantities |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10321127B2 (en) * | 2012-08-20 | 2019-06-11 | Intermec Ip Corp. | Volume dimensioning system calibration systems and methods |
-
2014
- 2014-07-11 CN CN201410329473.6A patent/CN104089684B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8602384B2 (en) * | 2009-07-31 | 2013-12-10 | Capstone Metering Llc | Water meter |
| CN102042857A (en) * | 2009-10-15 | 2011-05-04 | 上海思增工贸发展有限公司 | GPS (Global Position System) monitoring method for automotive fuel oil volume |
| CN101699224A (en) * | 2009-10-19 | 2010-04-28 | 中国汽车技术研究中心 | LabVIEW and PXI based automobile digital instrument testing system |
| CN201754101U (en) * | 2010-07-09 | 2011-03-02 | 北汽福田汽车股份有限公司 | Fuel sensor |
| WO2014100318A1 (en) * | 2012-12-21 | 2014-06-26 | Shell Oil Company | Method for calibration of indirectly measured quantities |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104089684A (en) | 2014-10-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104089684B (en) | Automobile fuel gauge calibration method | |
| CN102147619B (en) | Virtual instrument-based motor control automatic testing system and method for electric automobile | |
| US20080319605A1 (en) | Fuel monitoring device, system, and method | |
| CN102393733B (en) | Failure diagnosis method, fault diagnosis instrument and system thereof, new energy automobile | |
| CN102519511B (en) | Indication verification apparatus of automobile instrument and verification method thereof | |
| CN104471238B (en) | For starting the diagnosis of motor | |
| CN113383188B (en) | Liquid level calibration control system for liquefied gas fuel storage tank | |
| CN103231656A (en) | Vehicle instrument based on internet of things | |
| CN102733885A (en) | System and method for monitoring engine oil levels | |
| AU2021269012A1 (en) | Method and diagnostic device for performing vehicle diagnostics | |
| JPS6092130A (en) | Electric display device for vehicle | |
| CN102003978A (en) | Automotive combined instrument and speed ratio adjusting method | |
| CN101949713A (en) | Diagnostic automobile combined instrument, instrument diagnostor and instrument diagnosing method | |
| CN202372199U (en) | Indication calibrating device of automobile instrument | |
| CN102384754A (en) | Digital automobile combined instrument with adjustable speed ratio parameters | |
| CN202243022U (en) | Miniature instrument system of vehicle | |
| CN103114918B (en) | A kind of electronic control multi-cylinder engine starting method and device | |
| US8272257B2 (en) | Engine control experimenting apparatus | |
| CN109311395A (en) | Method and apparatus for estimating the state of the energy storage system of vehicle | |
| CN107063400A (en) | A kind of calibration system of automobile instrument and fuel tank | |
| CN104854430B (en) | Method for checking a total distance which is travelled by a motor vehicle and is displayed therein | |
| CN102967575A (en) | Method and system for measuring engine oil deterioration | |
| JP2013061245A (en) | Vehicular fuel remaining amount display device | |
| CN202357887U (en) | Automobile electronic combination instrument | |
| KR101442137B1 (en) | User equipment for displaying a status information of a car and method therefor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20141008 Assignee: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd. Assignor: Chongqing Changan Automobile Co.,Ltd. Contract record no.: X2021500000014 Denomination of invention: Calibration method of automobile fuel gauge Granted publication date: 20170215 License type: Common License Record date: 20211014 |
|
| EE01 | Entry into force of recordation of patent licensing contract |