Patent ID: 7881857

Claim:
A computer-readable electronic storage medium for storing a computer program having a plurality codes which, when executed on a computer, performs a method for fuel-injection into at least one combustion chamber of an internal combustion engine via at least one injector, the method comprising: (a) dividing a total injection quantity into a basic injection and at least one measured injection, wherein an injection time of the basic injection and an injection time of the measured injection are specified, and wherein n=1 is set for steps (b) through (e); (b) reducing the injection time tiM n of the measured injection and increasing the injection time tiB n of the basic injection in such a way that the total injection quantity remains the same; (c) ascertaining a deviation dλ n , resulting from step (b), of a variable characterizing an actual mixture from a variable characterizing a setpoint mixture; (d) ascertaining an error injection time dti n based on the deviation dλ n of the variable characterizing the actual mixture from the variable characterizing the setpoint mixture for the injection time tiM n of the measured injection; (e) forming a correction value VKK n as the sum of the error injection times dti i over the time steps i=1 through n, and adjusting a characteristic of the at least one injector by the correction value VKK n during the injection time tiM n of the measured injection; and (f) increasing the value of n by 1 , and repeating steps (b) through (e) at least once.