Optimization of Operating Parameters for Stable and High Operating Performance of a GDI Fuel Injector System

Wen-Chang Tsai
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Wen-Chang Tsai: School of Mechanical and Electrical Engineering, Xiamen University Tan Kah Kee College, Xiamen University, Zhangzhou 363105, China

Energies, 2020, vol. 13, issue 10, 1-22

Abstract: In this study, a novel injector driving circuit was developed to achieve the regulation of fuel injection quantity and to work with the engine control system in a vehicle. The main purpose of the proposed injector driving circuit is to control the quantity and timing of fuel injection within the gasoline direct injection (GDI) fuel injector system. In this paper, a mathematical state model of a high-pressure (H.P.) fuel injector system is derived and the improved Taguchi method is proposed to define the optimal operating parameter settings of a fuel injector system. The experiments on fuel injection quantity were performed to achieve the requirements of the injector driving circuit. The fuel quantity sprayed from a fuel injector system under these control parameters was analyzed by leading the design of experiments. The S/N and β slopes were analyzed to determine their optimal control settings. The H.P. injector driving circuit developed was designed to drive the fuel injector and spray the injected quantity of fuel into the flask following the optimized control factors. The experimental results demonstrate that the H.P. fuel injecting system exhibits better and more stable operating performance, to assure the accurate injection quantity for the GDI injector, and it was also realized with low cost metal oxide semiconductor field effect transistor (MOSFET) switches.

Keywords: Taguchi method; optimization; fuel injection quantity; injector driving circuit (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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