Patent ID: 9458809
Filing Date: 2016-10-04
CPC Classification: F02D,F02M,G01M,Y02T

Claim Text:
1. A method for assessing an injection behavior of at least one injection valve of an internal combustion engine, the method comprising: guiding the internal combustion engine into a special operating mode defined by at least one control parameter, wherein the at least one control parameter includes at least one of a rail pressure and an injection pattern; operating the internal combustion engine in the special operating mode during a diagnostic time period; determining at least one operating parameter of the internal combustion engine at least during the diagnostic time period; acquiring at least one quantity characterizing the injection behavior of the at least one injection valve at least during a segment of the diagnostic time period; and evaluating the at least one quantity characterizing the injection behavior of the at least one injection valve on the basis of the at least one operating parameter.