WO2006038787A1 - Procede et dispositif pour mesurer le niveau de carburant - Google Patents
Procede et dispositif pour mesurer le niveau de carburant Download PDFInfo
- Publication number
- WO2006038787A1 WO2006038787A1 PCT/LV2005/000012 LV2005000012W WO2006038787A1 WO 2006038787 A1 WO2006038787 A1 WO 2006038787A1 LV 2005000012 W LV2005000012 W LV 2005000012W WO 2006038787 A1 WO2006038787 A1 WO 2006038787A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- fuel
- tank
- time
- level
- sensors
- Prior art date
Links
- 239000000446 fuel Substances 0.000 title claims abstract description 105
- 238000000034 method Methods 0.000 title claims abstract description 36
- 239000002828 fuel tank Substances 0.000 claims abstract description 46
- 238000005259 measurement Methods 0.000 claims description 22
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000012545 processing Methods 0.000 claims description 10
- 238000010586 diagram Methods 0.000 claims description 9
- 238000012544 monitoring process Methods 0.000 claims description 9
- 238000009825 accumulation Methods 0.000 claims description 6
- 238000004590 computer program Methods 0.000 claims description 5
- 238000012935 Averaging Methods 0.000 claims description 3
- 238000011160 research Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 238000011088 calibration curve Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012212 insulator Substances 0.000 description 3
- 238000000691 measurement method Methods 0.000 description 3
- 238000011089 mechanical engineering Methods 0.000 description 2
- 241000566515 Nedra Species 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005055 memory storage Effects 0.000 description 1
- 239000012925 reference material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007619 statistical method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
Definitions
- the invention relates to the control and monitoring of the fuel level, which results in the determination of fuel consumption from the vehicle tank continuously during measurement.
- Some IM techniques and devices for monitoring and recording fuel levels in vehicle tanks are known.
- One of such control and registration methods is the flow method, when the flow measurement provides a certain accuracy with a uniform fuel consumption, respectively, with a uniform fuel flow, and when the engine is operating in different speed modes, the flow rate can vary unevenly, which leads to an increase in inaccuracies during the process measurements.
- the second known method of / 3 / monitoring and recording the level and fuel consumption from the tank is the use of a rheostat sensor, which is characterized by a definitely large measuring step (from 5 to 25 liters), which does not provide the necessary accuracy in determining the level and fuel consumption of the tank.
- the purpose of the invention is to provide continuous and accurate determination and registration of the fuel level in the vehicle tank, providing the opportunity to truly judge the fuel consumption from the fuel tank, as well as to take into account and analyze fuel consumption in connection with other operating parameters on the vehicle.
- a device and method for monitoring and recording the fuel level using a system of two sensors that are located in the fuel tank on one straight line symmetrically with respect to the geometric center of the fuel tank at a certain mutual distance make it possible to minimize the effect of an uneven fuel level that comes from the swing and other factors or from the non-horizontal position (tilt) of the fuel tank, to the accuracy of the measured level (volume) opliva.
- the proposed device for implementing the method comprising a system of at least two sensors - measuring transducers, for example, a pair of capacitive measuring transducers, an analog-to-digital converter (A / D) and a microprocessor for mathematically processing the measurements and calculating the actual fuel level and their accumulation in a memory block, characterized in that the measuring unit contains at least one pair of sensors that are fixedly mounted on the upper wall of the fuel tank, providing freedom bottom access of the fuel to the sensitive elements through the lower part of the sensor at the bottom of the fuel tank, and the sensitive elements of the sensors are placed at the same distance from the geometric center of the tank on the axis of symmetry of the tank, which intersects the geometric center of the fuel tank and is directed at a certain angle relative to the direction of vehicle , and the distance between the symmetrically located sensors in each pair is not more than 1/3 and not less than 1/10 of the tank size in the direction of movement of the trans Tailor tools.
- the device provides the output filled in the memory of the microprocessor of information about the actual fuel level in the tank of the vehicle and its image on the computer display in the form of a diagram;
- the device provides the ability to determine and analyze the actual fuel consumption from the fuel tank and / or falsification of the flow according to the diagram obtained about the actual change in the fuel level in the vehicle’s fuel tank, and also provides the ability to analyze other parameters of the engine’s operation both in operating conditions and in the case of engine stopped or engine idling (e.g. RPM, rated exhaust power from the box, engine temperature, speed, parking time, distance traveled) and provides the ability to determine fuel consumption for each engine operation with an accuracy of 1 liter for fuel tanks up to 1000 liters.
- RPM rated exhaust power from the box, engine temperature, speed, parking time, distance traveled
- the distance between the sensors with respect to the transverse axis of symmetry of the tank in the direction of transport not more than 1/3 of size L and not less than 1/10 of the same size L in the direction of transport.
- These sensors are placed on a line going through the geometric center of the upper plane of the tank at an angle, while maintaining symmetry from the center.
- Their sensitive elements are located on the technologically controlled lower level of the fuel tank which provides free access of fuel to their sensitive elements through the lower part.
- Capacitive sensors in this system are connected in parallel to the wire (4), which provides instant fixation of the fuel level parameters and their input through the wire (5) into the microprocessor memory (6), for example, every second.
- the received signals are summed up and divided by the number of received signals, as a result, the average fuel level for this period of time is obtained.
- these signals are input into the information storage block (8), where this information is accumulated for a long time, which is determined by the need and the memory storage capacity of the block. From this block it can be transferred to a personal computer and using a special computer program to display on the screen in the form of diagrams and tables for each sensor separately, as well as the averaged parameters of the sensor system or the engine as a whole.
- Figure 2 shows some of the possible fuel level positions in the tank. Accuracy at any position of the fuel level in the tank (a or b) or the position of the tank itself (c) is ensured by placing the sensors according to the previously described method and accumulating averaged values of actual signals, which corresponds to the average fuel level between the sensors every second, which is averaged every minute in the microprocessor, as a result, we get the actual level for the period ⁇ .
- the average value is obtained as the average sum of the readings of both capacitive sensors, which for any amount of fuel and its level at a certain point in time, regardless of the fluctuations of the fuel in the tank, is on average a fairly stable value. This definition refers to a given amount of fuel in a vehicle’s tank, as in the case of its movement and in the parking lot.
- Fig.Z One operational state of the capacitive sensor - measuring transducer used in the proposed device design, in the fuel tank is shown in Fig.Z, where the sensor cap is attached to the upper wall of the tank (9) with bolts, to which, for example, the outer shell is soldered (10) ) a sensor that rests on the lower insulator (13), which, in turn, rests on the bottom of the tank, and the inner shell 11 (tube) rests on both the upper part and the lower part of the insulator (13), electrically insulating both parts of the sensor .
- Fuel through the lower insulator freely enters the space of the measuring channel (14) and also freely enters the tank back. Air freely enters and exits this space through openings; the number and diameter are selected as appropriate on the top of both tubes.
- the signal wire (15), which connects the sensor to the microprocessor, is connected to the inner tube (11) on the upper part.
- the change in fuel level is measured by indicating the change in capacity. Since capacitance as a physical quantity is difficult to directly measure with microprocessor devices, a capacitive signal with a specially designed oscillator (approximately SA555 or another similar type) was converted to the corresponding frequency. The obtained frequency was measured, processed and stored in the memory of the recorder. After certain periods of time, the accumulated data in digital form was transferred to a personal computer to obtain statistical or graphical information. The frequency generator worked in an asymmetric multivibrator mode and the frequency of the output signal was calculated by the formula:
- the frequency at the output of the frequency generator is a function of only one single argument - the capacity of the fuel level sensor.
- the main task of the registrar is to cyclically measure the parameters of the fuel level sensor in the tank and signals from other sensors, as well as their accumulation in the memory of the registrar and transfer to a stationary computer for processing and display.
- the signal frequency from the frequency generator was measured according to the following formula:
- n 0, 1, 2, ..., 59
- the obtained fuel level in the tank was entered into the memory of the recorder, for example, EEPROM.
- the fuel level in the tank in The recorder’s memory also saved such vehicle motion parameters as the distance traveled for a minute, speed parameters, engine speed and other recorded data.Connecting the recorder to a personal computer, data through the RS232 interface from the recorder’s memory was charged into the personal computer’s memory for processing and expression, as well as for changing the modes and parameters of registration (reinstallation).
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
L'invention concerne un procédé et un dispositif pour mesurer et enregistrer le niveau de carburant. Il s'agit d'un système comprenant au moins deux capteurs connectés en parallèle, montés à la surface supérieure du réservoir de carburant et immergés dans le carburant. Les capteurs sont disposés en tenant compte des inéquations (a1+a2<=L/3; a1+a2>=L/10; b1+b2<=B/3). Chaque capteur est constitué de deux surfaces isolées disposées coaxialement. Selon l'invention, le niveau de carburant dans l'espace du réservoir entre les surfaces peut être rempli librement avec du carburant; de ce fait, la capacité entre les surfaces dépend du niveau de carburant dans le réservoir. La capacité est mesurée chaque seconde par un procédé électrique, les résultats des mesures sont calculés comme une moyenne et sauvegardés en mémoire toutes les minutes. Les données collectées peuvent être analysées et visualisées ultérieurement sur un ordinateur personnel.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| LV040120A LV13255B (en) | 2004-10-08 | 2004-10-08 | Method and fuel level gauge |
| LVP-04-120 | 2004-10-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006038787A1 true WO2006038787A1 (fr) | 2006-04-13 |
Family
ID=34748202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/LV2005/000012 WO2006038787A1 (fr) | 2004-10-08 | 2005-10-07 | Procede et dispositif pour mesurer le niveau de carburant |
Country Status (2)
| Country | Link |
|---|---|
| LV (1) | LV13255B (fr) |
| WO (1) | WO2006038787A1 (fr) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2339205A1 (es) * | 2008-02-13 | 2010-05-17 | Universidad Carlos Iii De Madrid | Sistema de medicion del nivel de combustible en ultraligeros. |
| US8281655B2 (en) | 2009-04-03 | 2012-10-09 | Eaton Corporation | Fuel gauging system utilizing a digital fuel gauging probe |
| CN111776189A (zh) * | 2020-07-06 | 2020-10-16 | 南通航海机械集团有限公司 | 一种船舶燃油智能净化系统 |
| CN112729434A (zh) * | 2021-01-04 | 2021-04-30 | 东风汽车股份有限公司 | 一种柴油货车使用油耗测试装置及其使用方法 |
| CN115143001A (zh) * | 2022-06-22 | 2022-10-04 | 中联重科土方机械有限公司 | 用于检测故障的方法、控制器及燃油留存系统 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110889227B (zh) * | 2019-11-28 | 2023-05-05 | 四川泛华航空仪表电器有限公司 | 一种基于多传感器信息融合的飞机燃油测量方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470296A (en) * | 1981-12-28 | 1984-09-11 | Nissan Motor Company, Limited | Fuel gauge for an automotive vehicle |
| FR2791131A1 (fr) * | 1999-03-15 | 2000-09-22 | Clesse Ind | Dispositif indicateur de niveau dans un reservoir de gaz de petrole liquefie |
| RU2163005C2 (ru) * | 1998-12-29 | 2001-02-10 | Акционерное общество "АвтоВАЗ" | Способ измерения количества топлива в баке автомобиля |
| RU2182698C2 (ru) * | 2000-02-01 | 2002-05-20 | Открытое акционерное общество "Техприбор" | Топливомерно-расходомерная система самолета |
| RU2231029C2 (ru) * | 2002-07-02 | 2004-06-20 | Государственное унитарное предприятие МПС РФ Центр внедрения новой техники и технологий "Транспорт" | Топливомер |
-
2004
- 2004-10-08 LV LV040120A patent/LV13255B/lv unknown
-
2005
- 2005-10-07 WO PCT/LV2005/000012 patent/WO2006038787A1/fr active Application Filing
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4470296A (en) * | 1981-12-28 | 1984-09-11 | Nissan Motor Company, Limited | Fuel gauge for an automotive vehicle |
| RU2163005C2 (ru) * | 1998-12-29 | 2001-02-10 | Акционерное общество "АвтоВАЗ" | Способ измерения количества топлива в баке автомобиля |
| FR2791131A1 (fr) * | 1999-03-15 | 2000-09-22 | Clesse Ind | Dispositif indicateur de niveau dans un reservoir de gaz de petrole liquefie |
| RU2182698C2 (ru) * | 2000-02-01 | 2002-05-20 | Открытое акционерное общество "Техприбор" | Топливомерно-расходомерная система самолета |
| RU2231029C2 (ru) * | 2002-07-02 | 2004-06-20 | Государственное унитарное предприятие МПС РФ Центр внедрения новой техники и технологий "Транспорт" | Топливомер |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2339205A1 (es) * | 2008-02-13 | 2010-05-17 | Universidad Carlos Iii De Madrid | Sistema de medicion del nivel de combustible en ultraligeros. |
| ES2339205B1 (es) * | 2008-02-13 | 2011-03-11 | Universidad Carlos Iii De Madrid | Sistema de medicion del nivel de combustible en ultraligeros. |
| US8281655B2 (en) | 2009-04-03 | 2012-10-09 | Eaton Corporation | Fuel gauging system utilizing a digital fuel gauging probe |
| CN111776189A (zh) * | 2020-07-06 | 2020-10-16 | 南通航海机械集团有限公司 | 一种船舶燃油智能净化系统 |
| CN112729434A (zh) * | 2021-01-04 | 2021-04-30 | 东风汽车股份有限公司 | 一种柴油货车使用油耗测试装置及其使用方法 |
| CN115143001A (zh) * | 2022-06-22 | 2022-10-04 | 中联重科土方机械有限公司 | 用于检测故障的方法、控制器及燃油留存系统 |
| CN115143001B (zh) * | 2022-06-22 | 2023-08-18 | 中联重科土方机械有限公司 | 用于检测故障的方法、控制器及燃油留存系统 |
Also Published As
| Publication number | Publication date |
|---|---|
| LV13255B (en) | 2005-02-20 |
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