| 摘要 |
A method is provided for estimating fuel injecting pressure of an injector belonging to a fuel injection system of an internal combustion engine. The fuel injection system includes, but is not limited to a fuel rail and at least one injector that are fluidly connected with the fuel rail through a connecting conduit. The method includes, but is not limited to modelling the pressure fluctuation within the connecting conduit according to the equation P=B·e−At cos(ωt), where A, B and ω are parameters, and t is a variable representing time, determining the dwell time between the injector opening and injector previous closing, and applying the determined dwell time to the equation in order to calculate the fuel injecting pressure. |
