System and method for detecting leakage of fuel evaporation system
The invention discloses a system for detecting leakage of a fuel evaporation system, and belongs to the technical field of oil gas leakage detection.The system comprises an electric control module, a pressure pump, a pressure sensor set and a gasoline volatile gas sensor, an oil tank is communicated...
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Main Authors | , , |
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Format | Patent |
Language | Chinese English |
Published |
06.06.2023
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Subjects | |
Online Access | Get full text |
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Summary: | The invention discloses a system for detecting leakage of a fuel evaporation system, and belongs to the technical field of oil gas leakage detection.The system comprises an electric control module, a pressure pump, a pressure sensor set and a gasoline volatile gas sensor, an oil tank is communicated with a carbon tank through a first pipeline, and the carbon tank is communicated with the pressure pump through a second pipeline; and the pressure sensor group, the volatile gas sensor and the pressure pump are electrically connected with the electric control module. According to the invention, a gasoline volatile gas sensor signal and a pressure sensor group signal are fitted, so that the detection precision and the detection frequency of leakage detection of the fuel evaporation system are improved; a standard leakage hole is formed, an electric control module is used for fitting a pressure change signal curve, the pressure change signal curve is compared with a pressure change curve of the standard leakage hol |
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Bibliography: | Application Number: CN202310224265 |