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Pressure-measurement automobile oil-consumption measurement system

A measurement system and fuel consumption technology, applied in measurement devices, relative volume flow measurement, liquid/fluid solid measurement, etc., can solve the problems of inconvenience, low accuracy and stability, and complex structure.

Inactive Publication Date: 2017-02-15
CHINA AGRI UNIV
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Problems solved by technology

At present, there are three categories of related products at home and abroad: the first category adopts ultrasonic technology, exhaust gas component detection and other technologies, and is derived from foreign high-end products. Its structure is complex and the price is high, and it is only suitable for research and development units; The direct measurement method of the meter, its accuracy and stability are not high, and it needs to be connected to the fuel supply system; the third type is the calculation method of the fuel quantity EFI data, which needs to be involved in the engine electronic control system, which is inconvenient to use in the car

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  • Pressure-measurement automobile oil-consumption measurement system

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Embodiment Construction

[0009] The present invention will be described in detail in conjunction with the accompanying drawings.

[0010] When the fuel consumption measurement system is not in use, the two-position two-way reversing valve 4 is closed; open the fuel port of the automobile, connect the gas pipe 3, and make sure that the connection and seal are good; power on the electronic control unit 11, and the electric control unit 11 controls the two-position two-way When the electromagnetic valve 4 is opened and the engine is started, the relationship between the engine fuel consumption and time can be measured, and the fuel consumption can be calculated by taking a certain period of time according to the engine working condition to be detected.

[0011] The fuel consumption G(g) in a certain working condition period is calculated based on the cumulative displacement of the photoelectric sensor.

[0012] For vehicles with a gasoline tank evaporation control system, turn off the gasoline tank evapo...

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Abstract

The invention discloses a pressure-measurement automobile oil-consumption measurement system, wherein air pressure decrease caused by oil consumption in an oil tank 1 is used to measure the oil consumption. At first, an air tube 3 is connected into the oil tank 1, an electric-control unit 11 is used to control two two-position three-way reversing valves 5, and the air pressure in a transparent tube 6 is controlled; a photoelectric sensor 9 keeps on capturing position signals of oil drops and sending the signals to the electric-control unit 11, so that the oil consumption could be measured continuously in real time; the electric-control unit records each position of reciprocating motion of the drops and converts the records into the oil consumption amount according to a quantitative relation, so that the oil consumption could be measured continuously in real time; the electric-control unit sends the signals to a data processing device 12, so that the oil consumption of the oil tank could be measured in real time; and in order to prevent the small drops from moving and influencing accurate measurement of an oil consumption instrument when the device does not work, the two-position three-way reversing valves 5 are connected in series with a two-position two-way reversing valve 4. By the design, sensitivity and accuracy of the measurement could be enhanced; and the measurement accuracy required by different vehicle oil consumption measurement projects could be achieved.

Description

technical field [0001] The invention relates to the technical field of automobile fuel consumption measurement, in particular to a non-intervention engine oil supply system and a high-precision automobile fuel consumption measurement technology through an external measurement method. Background technique [0002] At present, the vehicle fuel consumption measurement technology is still immature. The main reasons are frequency response error, liquid error and measurement error during speed switching. At present, there are three categories of related products at home and abroad: the first category adopts ultrasonic technology, exhaust gas component detection and other technologies, and is derived from foreign high-end products. Its structure is complex and the price is high, and it is only suitable for research and development units; The direct measurement method of the meter has low accuracy and stability, and needs to be connected to the fuel supply system; the third type is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F9/00
CPCG01F9/001
Inventor 王国业黄奕杰姚建伟李甜甜何畅然邢智超
Owner CHINA AGRI UNIV
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