Patent ID: 8543313

Claim:
A method of determining a vibration-optimized adjustment of an injection device of an internal combustion engine, the method comprising: providing for a specific engine adjustment by the injection device for each cycle of the internal combustion engine a plurality of at least two individual injections per cylinder, each of which is defined at least by a relative injection instant and an individual injection quantity, wherein a time characteristic of a resulting pressure that is influenced by pressure waves caused by the individual consecutive injections is determined in a fuel-carrying part of the injection device, wherein said adjustment is determined by varying the injection instant of at least one of: at least one individual injection and an individual injection quantity of at least one individual injection in such a way that this adjustment is characterized by a reduced temporal fluctuation of the resulting pressure as a result of interferences between said pressure waves; wherein said adjustment is determined computationally, wherein the time characteristic of the resulting pressure is determined by simulation using a hydraulic model.