Simulation on Pressure Control of Common Rail Line in High Pressure Fuel Injection System

摘要

To improving the controlled effect of common rail pressure of high pressure common rail system, dynamic simulation for common rail pressure control is studied. The demand of common rail pressure control and simulating mechanism for PID control is briefly analyzed, calculating model of common rail pressure is presented with mixing way of hydraulic pressure model and flux boundary, by AMESim. hydraulic simulation software, dynamic simulation module for common rail pressure control is constructed, the control effect of control parameter, control duration and variable target are compared respectively, its result showed that the model can meet controlled demand of common rail pressure and reflect controlled effect of different parameter.