Abstract
Fuel vapor-containment system (FVS) is a kind of vapor recovery device in the hybrid electric vehicle (HEV) and has a great advantage on the fuel vapor recovery. The general refueling progress of the FVS has been studied in detail and divided into two different stages: the decompression stage and the refueling stage. Then, the two different stages' mathematical models have been developed based on the binary diffusion theory and time-variation diffusion theory, and simulated using matlab to calculate the evaporative emission with regard to time. Finally, the author has made the experiments on the decompression emissions and refueling emissions. The analysis shows that the test results are well coincided with the evaluation of mathematical model.
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