CN101339064A - Electric control gasoline engine fuel consumption measuring method - Google Patents
Electric control gasoline engine fuel consumption measuring method Download PDFInfo
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- CN101339064A CN101339064A CNA2007100247714A CN200710024771A CN101339064A CN 101339064 A CN101339064 A CN 101339064A CN A2007100247714 A CNA2007100247714 A CN A2007100247714A CN 200710024771 A CN200710024771 A CN 200710024771A CN 101339064 A CN101339064 A CN 101339064A
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- fuel consumption
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- measuring
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Abstract
The invention relates to a method for measuring the fuel consumption of an electric control gasoline engine. When the method of the invention is used for measuring fuel consumption, an air flow meter is connected to an engine inlet in series; a microcomputer system collects the signal of the air flow meter, and processes and calculates the signal to derive the air quantity absorbed by the engine; the air quantity is divided by 14.7 to derive the equivalent consumption of normal benzene. The method requires no modification to the fuel oil supply system of the original vehicle, which is particularly applicable to the on-vehicle quick measurement of light cars driving in constant medium-low speed driving cycle. Furthermore, the method has the advantage of convenient installation and operation, which can meet the accuracy requirement of oil consumption measurement.
Description
Technical field
The present invention relates to a kind of electric control gasoline engine fuel consumption measuring method, the measurement of the electric-controlled petrol engine fuel consumption of operate as normal under the particularly medium and small load steady state condition.
Technical background
Vehicle fuel economy is one of basic mechanical design feature of automobile, and fuel consumption per hundred kilometers is to estimate an important indicator of automobile fuel ecomomy, and the measuring method of engine fuel consumption quantity is one of gordian technique of fuel consumption per hundred kilometers mensuration.Traditional fuel consume quantity measuring method has volumetric method, gravimetric method, flowmeter method and current meter method etc., and these all belong to the direct method of measurement.Volumetric method and gravimetric method are measured will change the engine oil route, and only is fit to one-point measurement, can not carry out measuring with car; Flowmeter method and current meter method can carry out measuring with car, but the sensing device of surveying instrument must be concatenated in the oil supply system of engine, and installation and use are very inconvenient, even may certain infringement be arranged to tested engine.Therefore, propose to use carbon balance method among the GB T 19233-2003 " light-duty vehicle consumption trial method ".Carbon balance method is a kind of indirect method of measurement, carbon balance method adopts constant volume sampling to measure the tail gas total amount, determine fuel consumption values by carbon content in the mensuration waste gas, it is bigger that its measuring accuracy is influenced by used gasoline ratio of carbon-hydrogen, particularly exist measuring equipment huge, complicated, cost an arm and a leg, measure the cost height, can not carry out with deficiencies such as car measurements.
Summary of the invention
At the deficiencies in the prior art and defective, the invention provides a kind of electric control gasoline engine fuel consumption measuring method, it can not only be with the fuel consumption of the quick measured automobiles of car, and do not need former car fuel oil supply system is done any change, easy to install and use, can satisfy the fuel consumption measurement accuracy requirement.
The technical scheme that is adopted when realizing fuel consumption measuring method of the present invention is: air flowmeter of serial connection on engine inlets, air flowmeter is connected with microcomputer by acquisition interface, microcomputer is gathered the air flowmeter signal, handle and calculate, and revise with environmental parameter, obtain sucking the air total amount of engine, with the air total amount divided by the 14.7 equivalent consumptions that obtain normal benzine.
The invention has the beneficial effects as follows: under the situation that the fuel oil supply system to former car does not make any changes, realize in the light-duty vehicle measuring fast of fuel consumption under the low velocity constant-speed driving operating mode with car, test system structure is simple, be easy to design and develop measurement mechanism, testing cost is low, is easy to apply at Automobile Design development field and automobile carrier.
Description of drawings
Accompanying drawing is that system of the present invention forms synoptic diagram.
1. air cleaner among the figure, 2. air flowmeter, 3. throttle body, 4. inlet manifold, 5. inlet manifold, 6. microsystem.
Embodiment
Further specify the embodiment of fuel consumption measuring method of the present invention below in conjunction with accompanying drawing.Embodiment is: an air flowmeter 2 is installed on the connecting tube between air cleaner 1 and the throttle body 3, air flowmeter is delivered to microsystem 6 with air flow rate signal, by microsystem signal is handled, calculated, obtain the calculated value of the air mass flow and the air capacity in the certain hour of present engine, environmental parameter during according to test is revised calculated value, obtain sucking in the corresponding time modified value of the air gross mass of engine, with the modified value of air gross mass divided by the 14.7 equivalent consumptions that obtain normal benzine.
The type selecting of concrete air flowmeter can be hot-wire, hot diaphragm type, vane type and Kalman's vortex etc. commonly used at present, and microsystem can be the data collection and analysis system of Single Chip Microcomputer (SCM) system, industrial control computer, FPGA or other types.
In the scope that content and claim of the present invention covered, the type of above-described air flowmeter and microsystem can have multiple modification and change, and described embodiment does not constitute the restriction to claim protection domain of the present invention.
Claims (1)
1. electric control gasoline engine fuel consumption measuring method, it is characterized in that: an air flowmeter is installed on engine inlets, airflow value when measuring engine operation with microsystem, treated, as to obtain sucking engine after calculating air total amount, the air total amount divided by 14.7, can be obtained the equivalent consumption of normal benzine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100247714A CN101339064A (en) | 2007-07-02 | 2007-07-02 | Electric control gasoline engine fuel consumption measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100247714A CN101339064A (en) | 2007-07-02 | 2007-07-02 | Electric control gasoline engine fuel consumption measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101339064A true CN101339064A (en) | 2009-01-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100247714A Pending CN101339064A (en) | 2007-07-02 | 2007-07-02 | Electric control gasoline engine fuel consumption measuring method |
Country Status (1)
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| CN (1) | CN101339064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2489821A (en) * | 2011-04-06 | 2012-10-10 | Lysanda Ltd | Estimating fuel consumption of a vehicle |
-
2007
- 2007-07-02 CN CNA2007100247714A patent/CN101339064A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2489821A (en) * | 2011-04-06 | 2012-10-10 | Lysanda Ltd | Estimating fuel consumption of a vehicle |
| GB2489821B (en) * | 2011-04-06 | 2016-01-13 | Tantalum Innovations Ltd | Method and apparatus for estimating the fuel consumption of a vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090107 |