Research on simulation and optimization technology of needle valve seating force of engine high pressure common rail injector

Abstract

∗ This paper mainly analyzes the working principle and process of engine GDI system, so as to develop and build a detailed physical simulation analysis model of GDI system based on AMESim multi-disciplinary simulation analysis platform; This paper also calibrates and verifies the computing power of the simulation analysis model. With the help of the high-precision physical dynamic model analysis technology based on AMESim simulation analysis platform studied in this paper, for the prediction characteristics of the working characteristics of GDI system, analyze the influencing factors of the model, and explore the optimization means of needle valve seating force.