Abstract
The rail pressure system of fuel engine is a nonlinear dynamic system with strong disturbance and its system modeling is especially important, the engine rail pressure system is taken as the research object in this paper, and the “pump-pipe-nozzle” mathematical model is established, the dynamic relationship among the cam speed of oil pump, the fuel injection quantity of fuel spray nozzle and the fuel pressure in the common rail pipe is explored in theory and simulation.
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