CN104776902B - Fuel residual amount measuring method and system - Google Patents
Fuel residual amount measuring method and system Download PDFInfo
- Publication number
- CN104776902B CN104776902B CN201510144387.2A CN201510144387A CN104776902B CN 104776902 B CN104776902 B CN 104776902B CN 201510144387 A CN201510144387 A CN 201510144387A CN 104776902 B CN104776902 B CN 104776902B
- Authority
- CN
- China
- Prior art keywords
- acceleration
- fuel
- gravity
- fuel container
- residual amount
- 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
Landscapes
- Combined Controls Of Internal Combustion Engines (AREA)
Abstract
The present invention relates to a kind of fuel residual amount measuring method and system, method to include：1) acceleration in tri- directions of fuel container X, Y, Z is detected, center-of-mass coordinate corresponding to acceleration magnitude is obtained by inquiring about acceleration centroid position data；X is fore-and-aft direction, Y is left and right directions, Z is above-below direction；The acceleration centroid position data is drawn by testing；2), as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；Pressure/the value of thrust obtained with reference to measurement, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；3) according to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated.The present invention method to solve the problems, such as existing method can not solve because fuel reduce and vehicle rock caused by fuel residual amount measurement it is inaccurate.
Description
Technical field
The present invention relates to a kind of fuel residual amount measuring method and system, especially suitable for the LNG visitors using Weighing type measurement
Car.
Background technology
Traditional LNG car fuel residual amounts measuring system is capacitive system for liquid level measurement, and its principle is in LNG gas cylinders
One capacitance level transducer is installed, can cause liquid level sensor internal capacitance using LNG liquid levels change in gas cylinder
The relation of value changes extrapolates the surplus of fuel.Such as Chinese patent document CN203957893U, a kind of heavy-duty car LNG combustions
Expect surplus detection and display device, disclose and a kind of liquid level is measured to measure the detection of LNG fuel residual amounts by liquid level sensor
Means.
The problem of this LNG cars fuel residual amount measuring system is present be：Because capacitance level gauge measuring system measures
Error is big, and in vehicle operation, causes measurement more inaccurate because liquid level is unstable.So can not be by accurately
Fuel residual amount information transmission causes driver can not accurately estimate car residue continual mileage to display instrument；Due to current state
Interior LNG gas stations skewness, gas station quantity is few, and LNG cars driver needs the continual mileage of real-time accurate evaluation car, with
Just the fuel adding time is planned in advance, therefore traditional LNG car fuel residual amount measuring systems can not meet the market demand.
Weighing type metering system is by measuring gravity first, with reference to acceleration of gravity, calculates quality.
200410088211.1 Chinese patent application disclose a kind of scheme；See its accompanying drawing 9,10,11, fuel container one end, which rotates, to be turned
On vehicle frame, the other end is fixed on vehicle frame disk, and bearing sets pulling force sensor, being capable of basis under this structure type
Torque balance relation calculates container and the wherein gravity of fuel, and then calculates quality.Belong to this area on torque balance relation
General principle, it is no longer excessive herein to explain.
Then, because fuel is constantly reduced in use, centroid position is caused to decrease, in the vertical direction
Deviate original centroid position；And in vehicle operation, liquid fuel, which can shake, causes barycenter in transverse and longitudinal coordinate
Deviate original centroid position.This, can not much more accurate fuel residual amount all on causing influence using torque balance relation.
The content of the invention
It is an object of the invention to provide a kind of fuel residual amount measuring method, can not be solved because of fuel to solve existing method
Reduce and vehicle rocks the problem of caused fuel residual amount measurement is inaccurate.Meanwhile to be based on the party present invention also offers a kind of
The fuel residual amount measuring system of method.
To achieve the above object, the invention provides a kind of fuel residual amount measuring method, this method to rotate suitable for front end
It is assemblied on car body, the fuel container that rear end is fixed, rear end sets pressure/pulling force sensor, comprised the following steps：
1) acceleration in tri- directions of fuel container X, Y, Z is detected, is added by inquiring about acceleration-centroid position data
Center-of-mass coordinate corresponding to velocity amplitude；X is fore-and-aft direction, Y is left and right directions, Z is above-below direction；Acceleration-the centroid position
Data are drawn by testing；
2), as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；The pressure obtained with reference to measurement/
Value of thrust, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；
3) according to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated.
Further, if the acceleration in tri- directions of fuel container X, Y, Z is zero；In step 3), current acceleration of gravity
For g, g is local gravitational acceleration.
Further, if the acceleration of fuel container Z-direction is not zero, vehicle scend or lower top are judged；In step 3), when
Preceding acceleration of gravity is that a=g ± Δs a, g are local gravitational acceleration, and ± Δ a is obtained by the acceleration transducer measurement of Z-direction,
G is local gravitational acceleration.
Further, if the acceleration of fuel container X-direction is not zero, judge that vehicle accelerates or slowed down；In step 2),
Pulling force/the pressure value obtained according to torque modification torque balance relation caused by X-direction acceleration or modification measurement, calculates weight
Power.
Further, if the acceleration of fuel container Y-direction is not zero, judge that left and right vehicle wheel is swung, ignore what is calculated
Quality.
Present invention also offers a kind of fuel residual amount measuring system, including front end rolling assembling is on car body, rear end is fixed
Fuel container, rear end sets pressure/pulling force sensor, includes the acceleration transducer in tri- directions of X, Y, Z, and control
Device, controller are used for：
The acceleration in tri- directions of fuel container X, Y, Z is detected, is accelerated by inquiring about acceleration-centroid position data
Center-of-mass coordinate corresponding to angle value；X is fore-and-aft direction, Y is left and right directions, Z is above-below direction；
Controller or the memory being connected with controller are used to store the acceleration-centroid position data, the acceleration
Degree-centroid position data is drawn by testing；
, as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；Pressure/the drawing obtained with reference to measurement
Force value, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；
According to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated.
Further, if the acceleration in tri- directions of fuel container X, Y, Z is zero；When calculating quality, current gravity accelerates
It is local gravitational acceleration to spend for g, g.
Further, if the acceleration of fuel container Z-direction is not zero, vehicle scend or lower top are judged；When calculating quality,
Current acceleration of gravity is that a=g ± Δs a, g are local gravitational acceleration, and ± Δ a is measured by the acceleration transducer of Z-direction
Arrive, g is local gravitational acceleration.
Further, if the acceleration of fuel container X-direction is not zero, judge that vehicle accelerates or slowed down；Calculate gravity
When, obtained pulling force/pressure value is measured according to torque modification torque balance relation caused by X-direction acceleration or modification.
Further, if the acceleration of fuel container Y-direction is not zero, judge that left and right vehicle wheel is swung, ignore what is calculated
Quality.
The present invention is by the way of demarcation acceleration-centroid position data in advance, by detecting acceleration, directly acquisition pair
The centroid position data answered, torque balance calculating is very easily carried out, finally obtains weight of fuel.
On the basis of convenient acquisition centroid position, in vehicle operation, by entering to acceleration or pressure value
Row amendment, can obtain accurate weight of fuel.
Brief description of the drawings
Fig. 1 is fuel container scheme of installation；
Fig. 2 is fuel residual amount measuring system schematic diagram；
Fig. 3 is the schematic diagram of amendment F1+F2 during Gravity calculation；
Fig. 4 is amendment torque balance relation schematic diagram during Gravity calculation.
Embodiment
Fuel residual amount measuring system embodiment
A kind of fuel residual amount measuring system as shown in Figure 1 and Figure 2, including front end rolling assembling is on car body, rear end is fixed
Fuel container 1, such as gas cylinder, rear end sets pressure sensor 2.Specifically, 4 foot stools are shared below gas cylinder, be respectively arranged
In four symmetrical corners of gas cylinder, wherein two foot stools in left side are hinge format, two, right side foot stool is respectively by pressure sensor 2
(totally 2) replace.Two pressure sensor measurements are respectively F1, F2.
Container is located in vehicle frame or associated mounting structure top in the present embodiment, so pressure sensor is set,
If using mounting means in 200410088211.1 Chinese patent, need to set pulling force sensor.Obviously, put on container
It is smaller to requirement of mechanical strength, it is easily installed.
The acceleration transducer 4 in tri- directions of X, Y, Z is also installed on fuel container；X is fore-and-aft direction, Y be left and right directions,
Z is above-below direction.Measuring system also includes controller 5.Acceleration transducer can also be arranged on car body, and controller is typically
Container position is not resided at.
The quality that controller 5 calculates can be eventually displayed in display instrument 6.
Controller is the core component of the present invention, for implementing fuel residual amount measuring method, this method be mainly shown as
Lower step：
1) acceleration in tri- directions of fuel container X, Y, Z is detected, is added by inquiring about acceleration-centroid position data
Center-of-mass coordinate corresponding to velocity amplitude；
2), as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；The pressure obtained with reference to measurement/
Value of thrust, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；
3) according to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated.
After fuel container and wherein quality of fuel is calculated, fuel container tare weight is subtracted, you can obtain fuel mass
m1.Fuel container tare weight m1, which needs to demarcate by controller, to be inputted.
The technological means that the above method is related to is described in detail below.
Above-mentioned acceleration-centroid position data is drawn by testing, and is carried out by controller or the memory being connected with controller
Storage.Acceleration-centroid position data draws by testing, can as a MAP (under different acceleration, different matter
Heart coordinate) demarcate in controller.
1, if the acceleration in tri- directions of fuel container X, Y, Z is zero, vehicle belongs to that static (including vehicle travels at the uniform speed
State)；When calculating quality, current acceleration of gravity is g, and g is local gravitational acceleration.
2, if liquid fuel, the acceleration of fuel container Z-direction is not zero, and judges vehicle scend or lower top；Calculate matter
During amount, current acceleration of gravity is that a=g ± Δs a, g are local gravitational acceleration, and ± Δ a is surveyed by the acceleration transducer of Z-direction
Measure, g is local gravitational acceleration.
3, if liquid fuel, the acceleration of fuel container X-direction is not zero, and judges that vehicle accelerates or slowed down；Calculate
During gravity, obtained pulling force/pressure is measured according to torque modification torque balance relation caused by X-direction acceleration or modification
Value.
In this case, because X-direction acceleration is present, F1 and F2 can produce change, front and rear the reason for change such as Fig. 3
The acceleration or deceleration in direction produces the acceleration a of an X-direction, and this acceleration causes gas cylinder centroid position to be existed by power Fx, Fx
It is what is changed that the component Fxh of the normal orientation of the arm of force, which causes pressure sensor to have reverse power a Fx ', Fx ' in Z-direction,
Power.The power F1 and F2 that controller 5 is measured by two pressure sensors 2, and F1+F2 ± Fx ' is modified to, sat afterwards with reference to barycenter
Mark calculates the overall stress G of current gas cylinder, by G=m*a (a=g), draws total quality m, then it is gas cylinder to subtract after tare weight
The weight m1 of interior LNG fuel.
As shown in figure 4, directly can also be modified to torque balance formula, accelerate relative to increasing in torque balance
Spend torque caused by a.M*g*L1+m*a*L2=(F1+F2) * L, L1, L2, L the difference arm of forces, are shown in that Fig. 4 is indicated.So as to can also count
Calculate total quality m.
4, if the acceleration of fuel container Y-direction is not zero, judges that left and right vehicle wheel is swung, ignore the quality calculated.
Above-mentioned 2,3 situations can also be integrated, i.e., the acceleration of existing Z-direction has X-direction acceleration again.Concrete mode is
2nd, in 3 specific means combination, will not be repeated here.
Fuel residual amount measuring method embodiment
This method is identical with the fuel residual amount measuring method in above example, will not be repeated here.
Be presented above the present invention relates to the specific embodiment of two themes, but the present invention be not limited to it is described
Embodiment.Under the thinking that the present invention provides, to above-mentioned reality by the way of being readily apparent that to those skilled in the art
Apply the technological means in example and enter line translation, replacement, modification, and play a part of basic with the relevant art means in the present invention
Goal of the invention that is identical, realizing is also essentially identical, and the technical scheme so formed is finely adjusted to be formed to above-described embodiment,
This technical scheme is still fallen within protection scope of the present invention.
Claims (8)
1. fuel residual amount measuring method, this method is applied to front end rolling assembling on car body, the fuel container that rear end is fixed, after
End sets pressure/pulling force sensor, it is characterised in that comprises the following steps：
1) acceleration in tri- directions of fuel container X, Y, Z is detected, acceleration is obtained by inquiring about acceleration-centroid position data
Center-of-mass coordinate corresponding to value；X is fore-and-aft direction, Y is left and right directions, Z is above-below direction；Acceleration-the centroid position data
Drawn by experiment；
2), as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；Pressure/the pulling force obtained with reference to measurement
Value, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；
3) according to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated；If fuel container X side
To acceleration be not zero, judge vehicle accelerate or slow down；In step 2), according to torque modification caused by X-direction acceleration
Torque balance relation calculates gravity, and revised torque balance relation is：M*g*L1+m*a*L2=(F1+F2) * L, wherein, m is
The total quality of fuel container, g are acceleration of gravity, and a is the acceleration of X-direction, and F1 and F2 are that pressure/pulling force sensor measures
Pressure/pulling force, L1 attaches most importance to force arm, and L2 is the arm of force of X-direction acceleration, and L is pressure/pulling force arm of force.
2. fuel residual amount measuring method according to claim 1, it is characterised in that if tri- directions of fuel container X, Y, Z
Acceleration be zero；In step 3), current acceleration of gravity is g, and g is local gravitational acceleration.
3. fuel residual amount measuring method according to claim 1, it is characterised in that if the acceleration of fuel container Z-direction
It is not zero, judges vehicle scend or lower top；In step 3), current acceleration of gravity is that a=g ± Δs a, g accelerate for local gravity
Degree, ± Δ a are obtained by the acceleration transducer measurement of Z-direction, and g is local gravitational acceleration.
4. fuel residual amount measuring method according to claim 1, it is characterised in that if the acceleration of fuel container Y-direction
It is not zero, judges that left and right vehicle wheel is swung, ignore the quality calculated.
5. fuel residual amount measuring system, it is characterised in that including front end rolling assembling on car body, the fuel appearance that rear end is fixed
Device, rear end set pressure/pulling force sensor, include the acceleration transducer in tri- directions of X, Y, Z, and controller, control
Device is used for：
The acceleration in tri- directions of fuel container X, Y, Z is detected, acceleration magnitude is obtained by inquiring about acceleration-centroid position data
Corresponding center-of-mass coordinate；X is fore-and-aft direction, Y is left and right directions, Z is above-below direction；
Controller or the memory being connected with controller are used to store the acceleration-centroid position data, the acceleration-matter
Heart position data is drawn by testing；
, as fulcrum, the gravity arm of force is determined according to center-of-mass coordinate at the rolling assembling；Pressure/the pulling force obtained with reference to measurement
Value, according to torque balance relation, calculate fuel container and the wherein gravity of fuel；
According to the gravity and current acceleration of gravity, fuel container and wherein quality of fuel are calculated；
If the acceleration of fuel container X-direction is not zero, judge that vehicle accelerates or slowed down；In step 2), accelerated according to X-direction
Torque modification torque balance relation caused by degree calculates gravity, and revised torque balance relation is：M*g*L1+m*a*L2=
(F1+F2) * L, wherein, m is the total quality of fuel container, and g is acceleration of gravity, and a is the acceleration of X-direction, and F1 and F2 are
Pressure/pulling force that pressure/pulling force sensor measures, L1 attach most importance to force arm, and L2 is the arm of force of X-direction acceleration, and L is pressure/drawing
Force arm.
6. fuel residual amount measuring system according to claim 5, it is characterised in that if tri- directions of fuel container X, Y, Z
Acceleration be zero；When calculating quality, current acceleration of gravity is g, and g is local gravitational acceleration.
7. fuel residual amount measuring system according to claim 5, it is characterised in that if the acceleration of fuel container Z-direction
It is not zero, judges vehicle scend or lower top；When calculating quality, current acceleration of gravity is a=g ± Δs a, and g adds for local gravity
Speed, ± Δ a are obtained by the acceleration transducer measurement of Z-direction, and g is local gravitational acceleration.
8. fuel residual amount measuring system according to claim 5, it is characterised in that if the acceleration of fuel container Y-direction
It is not zero, judges that left and right vehicle wheel is swung, ignore the quality calculated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144387.2A CN104776902B (en) | 2015-03-30 | 2015-03-30 | Fuel residual amount measuring method and system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510144387.2A CN104776902B (en) | 2015-03-30 | 2015-03-30 | Fuel residual amount measuring method and system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104776902A CN104776902A (en) | 2015-07-15 |
| CN104776902B true CN104776902B (en) | 2017-11-14 |
Family
ID=53618512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510144387.2A Active CN104776902B (en) | 2015-03-30 | 2015-03-30 | Fuel residual amount measuring method and system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104776902B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609566A (en) * | 2003-10-22 | 2005-04-27 | 丰田自动车株式会社 | Measurement of gas fuel residue |
| CN101308386A (en) * | 2008-07-10 | 2008-11-19 | 同济大学 | Automobile chassis integrated controller hardware in-the-loop simulation test stand |
| CN102306001A (en) * | 2011-09-26 | 2012-01-04 | 中国空间技术研究院 | Simulation method for determining shaking acting force of liquid in storage container |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6892572B2 (en) * | 1994-05-09 | 2005-05-17 | Automotive Technologies International, Inc. | Method and apparatus for measuring the quantity of a liquid in a vehicle container |
| JP2014084769A (en) * | 2012-10-23 | 2014-05-12 | Calsonic Kansei Corp | Vehicle fuel display mechanism |
-
2015
- 2015-03-30 CN CN201510144387.2A patent/CN104776902B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1609566A (en) * | 2003-10-22 | 2005-04-27 | 丰田自动车株式会社 | Measurement of gas fuel residue |
| CN101308386A (en) * | 2008-07-10 | 2008-11-19 | 同济大学 | Automobile chassis integrated controller hardware in-the-loop simulation test stand |
| CN102306001A (en) * | 2011-09-26 | 2012-01-04 | 中国空间技术研究院 | Simulation method for determining shaking acting force of liquid in storage container |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104776902A (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101896790B (en) | Method for compensating measurement errors caused by deformations of a measuring machine bed under the load of a workpiece and measuring machine operating according to said method | |
| CN105807095B (en) | A kind of 3-axis acceleration sensor installation error modification method | |
| CN106840519B (en) | A kind of static measurement method of two-axle car height of center of mass | |
| CN101581613B (en) | Dynamometer for automobile chassis and measurement and control method thereof | |
| CN101629969B (en) | Calibration compensation and testing method and device of output errors of low-precision optical fiber inertial measurement unit | |
| CN101619970B (en) | Method for measuring vertical section of road surface | |
| CN108491594B (en) | Method for reversely solving acting force between wheel and steel rail based on data acquired by strain gauge arranged on rail side | |
| KR101504573B1 (en) | Apparatus and method for measuring axle weight of vehicle | |
| CN104340104A (en) | Method of weighing a load | |
| CN104297771B (en) | GNSS device and method for precisely and quickly measuring elevation | |
| CN105021370B (en) | Low speed high Reynola number wind tunnel half model force balance and force measuring method | |
| CN105136391A (en) | Method of measuring distance between ground force bearing points of plane and system | |
| CN104568092A (en) | Multi-functional comprehensive rail weighbridge | |
| CN109870269A (en) | A kind of three-dimensional force plate/platform calibration method | |
| CN110260832B (en) | Crane amplitude measuring method | |
| US20130311112A1 (en) | Method and apparatus for determining the thrust on a vehicle | |
| CN108458772A (en) | The measuring table and method of a kind of guided missile quality and axial barycenter | |
| CN204139038U (en) | A kind of detection system being applicable to backman beam method test road surface rebound deflection | |
| CN105292121A (en) | Method for predicting stability of vehicles | |
| CN104776902B (en) | Fuel residual amount measuring method and system | |
| JP5604261B2 (en) | Device for measuring the center of gravity of a vehicle to be weighed on a truck scale | |
| CN205483210U (en) | Combined multrirange electronic truck scale of many weighing platforms | |
| JP2012052942A (en) | Gravity center position measuring device | |
| JP6083793B2 (en) | Vehicle natural frequency detection device and gravity center position measurement device | |
| CN205691343U (en) | Sedan lifted type hydraulic jack lifting brake platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 450061 Yudao Road, Guancheng District, Zhengzhou City, Henan Province Patentee after: Yutong Bus Co., Ltd Address before: 450016 Yutong Industrial Zone, eighteen Li River, Henan, Zhengzhou Patentee before: Zhengzhou Yutong Bus Co., Ltd |