Investigation on online perception method of gas injection characteristics for the high-pressure natural gas direct injection engine

•An online perception method of high-pressure natural gas injection characteristics is realized.•The time–frequency analysis of pressure signals can obtain the injection time characteristics.•The precise online identification of the quantified characteristics is realized.•The pilot diesel injection...

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Veröffentlicht in:	Fuel (Guildford) 2022-05, Vol.316, p.123194, Article 123194
Hauptverfasser:	Yang, Xiyu, Zhou, Tanqing, Wang, Xiaoyan, Wang, Jingshan, Dong, Quan
Format:	Artikel
Sprache:	eng
Schlagworte:	Algorithms Dual-fuel injector Fourier transforms Fuel-injection characteristics Gas injection High pressure Injection Injectors Inlet pressure Internal combustion engine Natural gas Neural networks Online perception method Perception Prediction models Pressure Regression coefficients Working conditions
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