Patent ID: 9606017
Date: 2017-03-28
CPC Classifications: F02D,G01D,G01L

Claim:
1. A method for controlling fuel injection into one or more cylinders of an internal combustion engine, the method comprising: determining an error in a pressure measured by a pressure sensor in a pressure accumulator for accumulating fuel that is removable from the pressure accumulator via an injection valve, and that can be injected into a cylinder by determining at least two 3-tuples of: a first pressure, a period of time, and a second pressure, wherein for each 3-tuple: opening the injection valve for a calculated duration based at least in part on a desired amount of fuel and the determined error in measured pressure; wherein the determination of the measured pressure error includes determining parameters of an error model; determining the parameters of the error model by matching at least two pairs of measured values to a functional relationship between pressure collapse and pressure; and forming a pair of measured values for each 3-tuple, wherein one component of the pair of measured values depends on at least one of the first pressure and the second pressure and another component of the pair of measured values depends on the difference between the first pressure and the second pressure.