Procedure for determining the injected fuel mass of a single injection and device for implementing the procedure

A device for operating a combustion engine, comprising at least one control unit configured for implementing a method for determining a fuel mass of a single injection injected into at least one combustion chamber of a combustion engine with at least one injection under high pressure, the method comprising:

• determining a correction variable for the single injection by a comparison of a measure for an actual amount of injected fuel of at least one test injection, wherein the at least one test injection occurs due to a measure for a default nominal amount of a desired single injection and a measure for a nominal amount of the test injection;
• and
• executing a plurality of timely directly successive test injections, wherein a fuel mass of the directly successive test injections is equivalent to the fuel mass of the single injection to be measured.

A computer-implemented method for determining a fuel mass of a single injection injected into at least one combustion chamber of a combustion engine with at least one injection under high pressure, the computer-implemented method comprising:

• determining a correction variable for the single injection by a comparison of a measure for an actual amount of injected fuel of at least one test injection, wherein the at least one test injection occurs due to a measure for a default nominal amount of a desired single injection and a measure for a nominal amount of the test injection;
• and executing a plurality of timely directly successive test injections, wherein a fuel mass of the directly successive test injections is equivalent to the fuel mass of the single injection to be measured.

A computer program product with a program code that is stored on a non-transitory machine-readable device and executed on a computer of a control unit, for determining a fuel mass of a single injection injected into at least one combustion chamber of a combustion engine with at least one injection under high pressure, the program code including instructions for:

• determining a correction variable for the single injection by a comparison of a measure for an actual amount of injected fuel of at least one test injection, wherein the at least one test injection occurs due to a measure for a default nominal amount of a desired single injection and a measure for a nominal amount of the test injection;
• and executing a plurality of timely directly successive test injections, wherein a fuel mass of the directly successive test injections is equivalent to the fuel mass of the single injection to be measured.