Method for determining characteristics of fuel injection valve of common-rail fuel injection system of four-stroke piston diesel engine of vehicle, involves computing drive time in interpolation point based on determined configuration

摘要

The method involves interpolating an injection rate deviation by an injection rate deviation interpolation step (S8) in a selected interpolation point based on the injection rate deviation computed by an injection rate deviation computation step (S5). An injection rate configuration is determined in the point by an injection rate configuration determining step (S4) based on a reference injection rate configuration in the point and the interpolated deviation. A drive time is computed by a drive time computing step (S11) in the point based on the determined configuration.