Method for operating an internal combustion engine

摘要

A method for operating an internal combustion engine having two or more cylinders to which fuel can be supplied via an injection valve, it being possible to carry out a measurement injection for a cylinder in order to determine and/or adapt a characteristic quantity of the injection valve, and all the cylinders being ignited in the course of an ignition cycle. To improve the operating characteristics, a measurement injection is carried out for those cylinders that are contained in a specifiable selected set selected from all the cylinders.

主权项

1. A method for operating an internal combustion engine having two or more cylinders to which fuel can be supplied via injection valves, the method comprising:
igniting all cylinders during ignition cycles of the internal combustion engine; for each of a plurality of the ignition cycles, performing a measurement injection for only those cylinders that are contained in a set of cylinders selected from all of the cylinders, wherein each set of cylinders for each of the plurality of ignition cycles is selected as a function of at least one of an operating parameter and an environmental parameter, wherein a cylinder is left out of the set if a number of measurement injections has taken place for that cylinder is judged to be sufficient based on a specifiable measurement criterion; and adapting a characteristic quantity of the injection valves based on the measurement injections.