CN103791979B - High-precision fuel tank fuel quantity measuring device - Google Patents
High-precision fuel tank fuel quantity measuring device Download PDFInfo
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- CN103791979B CN103791979B CN201410034711.0A CN201410034711A CN103791979B CN 103791979 B CN103791979 B CN 103791979B CN 201410034711 A CN201410034711 A CN 201410034711A CN 103791979 B CN103791979 B CN 103791979B
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- Prior art keywords
- fuel
- fuel tank
- gauge
- controller
- air
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- 239000002828 fuel tank Substances 0.000 title claims abstract description 57
- 239000000446 fuel Substances 0.000 title claims abstract description 49
- 238000005259 measurement Methods 0.000 claims abstract description 29
- 238000000034 method Methods 0.000 claims description 8
- 230000001914 calming effect Effects 0.000 claims description 4
- 238000001514 detection method Methods 0.000 claims 2
- 239000007788 liquid Substances 0.000 abstract description 3
- 230000009931 harmful effect Effects 0.000 abstract description 2
- 230000006835 compression Effects 0.000 abstract 2
- 238000007906 compression Methods 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 35
- 239000000295 fuel oil Substances 0.000 description 7
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
A high-precision fuel tank fuel quantity measuring device comprises a fuel gauge, a controller, an initial fuel quantity measuring part and a fuel consumption measuring part. The initial fuel quantity measuring part comprises a fuel tank cap switch connected with the controller, a fuel tank pressure sensor, an air compressor, an air compression quantity gauge and a solenoid valve, an exhaust port of the air compressor is connected with the fuel tank, and the air compression quantity gauge and the solenoid valve are arranged on an air suction pipe of the air compressor. The fuel consumption measuring part comprises an air input quantity gauge connected with the controller and a one-way solenoid valve, the air input quantity gauge and the one-way solenoid valve are both arranged on an air inlet pipe of the fuel tank, the input end of the fuel gauge is connected with the fuel quantity data output end of the controller. The quantity of fuel in the fuel tank is calculated according to the volume of air in the fuel tank, the harmful effect caused by fuel liquid level fluctuation on measurement data is effectively avoided, therefore, the measuring precision of the fuel is greatly improved, and convenience is provided for a user to accurately judge the quantity of remaining fuel.
Description
Technical field
The present invention relates to a kind of can accurately measure the device of amount of fuel in automotive oil tank, belong to field of measuring technique.
Background technology
Fuel gauge is the instrument measuring automobile oil mass, and existing automobile fuel gauge the most all uses float type fuel to sense
Device.Such as, a kind of liquid level sensor of fuel gauge, this biography disclosed in the utility model patent of Application No. 201020673149.3
It is how many that sensor is that the height according to liquid level carrys out oil amount determination.When vehicle is in more severe road conditions (such as turning, climb and fall etc.)
During traveling, the fuel oil in fuel tank arises that shaking phenomenon, and line stability is very poor, the oil mass of float type fuel sensor output
Data also there will be bigger error and the most unstable, cause user cannot accurately judge Fuel Oil Remaining number, give and drive trip
Bring inconvenience.
Summary of the invention
Present invention aims to the drawback of prior art, it is provided that a kind of high-precision fuel tank fuel quantity measurement apparatus,
Allow users to accurately judge the number of Fuel Oil Remaining.
Problem of the present invention realizes with following technical proposals:
A kind of high-precision fuel tank fuel quantity measurement apparatus, composition includes fuel gauge, controller, initial oil measurement part
Measuring part with fuel consumption, described initial oil measurement part includes fuel tank cap switch, the fuel tank pressure being connected with controller
Force transducer, compressor, calm the anger gauge scale and electromagnetic valve, the air vent connected tank of described compressor, described in calm the anger gauge amount
Table and electromagnetic valve are arranged on the suction nozzle of compressor, and described fuel consumption measurement part includes the air inlet being connected with controller
Gauge scale and Unidirectional solenoid valve, both is arranged in the air inlet pipe of fuel tank, the input termination controller of described fuel gauge
Oil mass data output end.
Above-mentioned high-precision fuel tank fuel quantity measurement apparatus, described measurement apparatus operates as follows:
A. the measurement of initial oil mass and display
Controller detects the output signal of fuel tank cap switch in real time, when fuel tank cap is opened and built again, by such as lower section
Formula measures initial oil mass: closes Unidirectional solenoid valve, opens electromagnetic valve and start compressor, detects tank pressure sensing device simultaneously
Output signal, when tank pressure reaches setting valueTime, cut off compressor power supply and close electromagnetic valve, by calming the anger, gauge scale is read
Pressure enters the volume of air of fuel tank, the initial oil mass of fuel tank is then calculated according to following formula:
Wherein,For volume of fuel tank,For normal atmosphere,
The data of controller output afterwards, are updated to initial oil mass by the show value of fuel gauge, open electromagnetic valve simultaneously, make
Fuel tank internal gas pressure returns to normal atmosphere；
B. the measurement of real-time oil quantity and display
In car running process, controller is opened Unidirectional solenoid valve and detects the air inlet that air inflow gauge table is exported in real time
Volume, and utilize following formula to calculate real-time oil quantity
Then real-time oil quantity is shown on fuel gauge.
Above-mentioned high-precision fuel tank fuel quantity measurement apparatus, described tank pressure setting valueFor normal atmosphere2 times.
The present invention, according to the amount of fuel in the volume of gas calculates fuel tank in fuel tank, effectively prevent fuel level fluctuation right
The harmful effect that measurement data causes, thus substantially increase the certainty of measurement of fuel oil, can accurately judge remaining oil for user
Amount provides conveniently.
Accompanying drawing explanation
The invention will be further described below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of the present invention.
Figure is respectively numbered: 1, fuel tank, 2, fuel tank cap, 3, fuel tank cap switch, 4, tank pressure sensing device, 5, controller,
6, air inflow gauge table, 7, Unidirectional solenoid valve, 8, compressor, 9, gauge scale of calming the anger, 10, electromagnetic valve, 11, fuel gauge.
In literary composition, each symbol is:For tank pressure setting value,For being pressed into the volume of air of fuel tank,Initial for fuel tank
Oil mass,For volume of fuel tank,For normal atmosphere,For charge volume,For real-time oil quantity.
Detailed description of the invention
Referring to Fig. 1, the invention mainly comprises: fuel gauge 11, controller 5, initial oil measurement part and fuel consumption
Measure part, initial oil measurement part can calculate fuel tank fuel quantity after adding oil, fuel consumption measurement part by based on
Calculate the oil mass consumed in car running process, and then draw real-time oil quantity.Initial oil measurement part include fuel tank cap switch 3,
Tank pressure sensing device 4, compressor 8, calm the anger gauge scale 9 and electromagnetic valve 10；Fuel consumption measurement part includes air inflow
Gauge table 6 and Unidirectional solenoid valve 7.
The measurement of initial oil mass
After refueling, need to remeasure the initial value of oil mass, method is to utilize compressor 8 to be pressed into air in mailbox every time,
Tank pressure is made to reach setting value, it is assumed that the volume of air being now pressed into fuel tank is, volume of fuel tank is, standard atmosphere
Pressure is usedRepresenting, the initial oil mass of oiling rear fuel tank is, ignore gas temperature and the difference of ambient temperature in fuel tank, i.e. suppose
In fuel tank, the temperature of gas is identical with ambient temperature, is easy to draw according to equation of gaseous state:
,
Thus can obtain the initial oil mass of fuel tank:
,
For ease of calculating, tank pressure setting valueCan be with value for 2, substituting into above formula can obtain:
The initial oil mass i.e. refueled in rear fuel tank deducts the volume of air of press-in fuel tank equal to volume of fuel tank.
The measurement of real-time oil quantity
Between twice oiling, the oil mass in fuel tank gradually decreases along with the increase of vehicle driving mileage, it is clear that surplus in fuel tank
The volume of remaining fuel oil is equal to initial oil massDeduct the amount of fuel consumed in vehicle traveling process, and vehicle traveling process consumes
The volume of fuel oil (suppose the beginning of the air pressure in fuel tank in vehicle traveling process equal to the volume of the air entering fuel tank during this period
Eventually equal to normal atmosphere).Therefore, the present invention is by measuring the charge volume of fuel tankDetermine the body of the fuel oil of consumption
Long-pending, and then obtain real-time oil quantity:
Initial oil massAnd real-time oil quantityBeing calculated by controller, the display of oil mass is then completed by fuel gauge 11.
The model of middle controller 5 of the present invention is MB915467CB (other processors are used as).The work of the most each pin
With being respectively as follows: 1. input of reservoir port switching signal, the 2. input of tank pressure signal, the 3. input of air inflow signal, 4. check valves
Working control signal exports, 5. the input of compressor working control signal output 6. amount of calming the anger signal, and 7. electromagnetic valve work controls letter
Number output, 8. fuel gauge instruction drive signal output.
Claims (2)
1. a high-precision fuel tank fuel quantity measurement apparatus, is characterized in that, it includes fuel gauge (11), controller (5), initial oil
Measurement part and fuel consumption measure part, and described initial oil measurement part includes the fuel tank being connected with controller (5)
Lid switch (3), tank pressure sensing device (4), compressor (8), calm the anger gauge scale (9) and electromagnetic valve (10), described compressor
(8) air vent connected tank (1), described in calm the anger gauge scale (9) and electromagnetic valve (10) is arranged on the suction nozzle of compressor (8)
On, described fuel consumption measurement part includes air inflow gauge table (6) and the Unidirectional solenoid valve (7) being connected with controller (5),
Both is arranged in the air inlet pipe of fuel tank (1), the oil mass data output of input termination controller (5) of described fuel gauge (11)
End；
Described measurement apparatus operates as follows:
A. the measurement of initial oil mass and display
The output signal of controller (5) detection fuel tank cap switch (3) in real time, when fuel tank cap (2) is opened and built again, by such as
Under type measures initial oil mass: closes Unidirectional solenoid valve (7), opens electromagnetic valve (10) and start compressor (8), detecting oil simultaneously
The output signal of case pressure transducer (4), when tank pressure reaches setting value P, cuts off compressor (8) power supply and closes electromagnetism
Valve (10), is read volume of air V of press-in fuel tank by gauge scale (9) of calming the angerEnter, the initial oil of fuel tank is then calculated according to following formula
Amount V0:
Wherein, V is volume of fuel tank, P0For normal atmosphere,
The data of controller (5) output afterwards, are updated to initial oil mass V by the show value of fuel gauge (11)0, open electromagnetic valve simultaneously
(10) fuel tank internal gas pressure, is made to return to normal atmosphere；
B. the measurement of real-time oil quantity and display
In car running process, Unidirectional solenoid valve (7) opened by controller (5) and detection air inflow gauge table (6) in real time is exported
Charge volume VEnter, and utilize following formula to calculate real-time oil quantity Vt
Vt=V0-VEnter
Then real-time oil quantity is shown on fuel gauge (11).
One the most according to claim 1 high-precision fuel tank fuel quantity measurement apparatus, is characterized in that, described tank pressure sets
Definite value P is normal atmosphere P02 times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034711.0A CN103791979B (en) | 2014-01-25 | 2014-01-25 | High-precision fuel tank fuel quantity measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410034711.0A CN103791979B (en) | 2014-01-25 | 2014-01-25 | High-precision fuel tank fuel quantity measuring device |
Publications (2)
| Publication Number | Publication Date |
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| CN103791979A CN103791979A (en) | 2014-05-14 |
| CN103791979B true CN103791979B (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410034711.0A Expired - Fee Related CN103791979B (en) | 2014-01-25 | 2014-01-25 | High-precision fuel tank fuel quantity measuring device |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105716347A (en) * | 2014-12-03 | 2016-06-29 | 中国航空工业集团公司航空动力控制系统研究所 | Liquid nitrogen low-temperature box |
| CN107605733B (en) * | 2017-09-22 | 2020-03-06 | 苏州三一冷暖工程有限公司 | Compressor pump oil mass measuring equipment |
| CN110307879B (en) * | 2019-06-27 | 2021-08-24 | 南京智鹤电子科技有限公司 | Detection method and device for oil tank and server |
| CN112484804A (en) * | 2020-11-12 | 2021-03-12 | 江苏海洋大学 | Method for measuring and calculating automobile oil mass |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510267A (en) * | 2002-12-13 | 2004-07-07 | ����ϲ�� | Fuel feeding systems |
| CN102072752A (en) * | 2010-10-28 | 2011-05-25 | 中国农业大学 | Non-intrusive high-precision automobile fuel consumption measurement system |
| DE102010015707A1 (en) * | 2010-04-21 | 2011-10-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | System for determining level of fuel in fuel tank of motor car, has flow meter provided in filler neck of fuel tank and coupled with level control valve in controllable manner to calibrate system |
| CN202158887U (en) * | 2011-07-07 | 2012-03-07 | 天津航联迪克科技有限公司 | Pressure pneumatic type liquid level meter |
| CN202832906U (en) * | 2012-08-14 | 2013-03-27 | 李恒 | Pneumatic tank fuel supply system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3885384B2 (en) * | 1998-10-09 | 2007-02-21 | 株式会社デンソー | Fuel level measuring device |
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- 2014-01-25 CN CN201410034711.0A patent/CN103791979B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1510267A (en) * | 2002-12-13 | 2004-07-07 | ����ϲ�� | Fuel feeding systems |
| DE102010015707A1 (en) * | 2010-04-21 | 2011-10-27 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | System for determining level of fuel in fuel tank of motor car, has flow meter provided in filler neck of fuel tank and coupled with level control valve in controllable manner to calibrate system |
| CN102072752A (en) * | 2010-10-28 | 2011-05-25 | 中国农业大学 | Non-intrusive high-precision automobile fuel consumption measurement system |
| CN202158887U (en) * | 2011-07-07 | 2012-03-07 | 天津航联迪克科技有限公司 | Pressure pneumatic type liquid level meter |
| CN202832906U (en) * | 2012-08-14 | 2013-03-27 | 李恒 | Pneumatic tank fuel supply system |
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| CN103791979A (en) | 2014-05-14 |
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