Patent ID: 9423792
Filing Date: 2016-08-23
CPC Classification: F02D,G05B

Claim Text:
1. A method for suppressing interference in a controlled variable in a control circuit, in which an actuating variable is a useful signal, the method comprising: detecting the controlled variable continuously, at two successive sampling instants in each case; subtracting a controlled value of the controlled variable obtained during the detecting at a second sampling instant from the controlled value of the controlled variable obtained during the detecting at a first sampling instant; and modifying at least one control parameter when an absolute amount of a difference deviates by a predefinable setpoint value, wherein the modification is done in such a way that a response of the actuating variable to the interference is minimized, wherein the useful signal is flagged as invalid during a duration of the interference so that the flagged useful signal is not considered for determining the controlled variable, and upon abatement of the interference signal for a predetermined number of computation cycles, the useful signal is determined in an unfalsified manner, wherein the useful signal is a pumping current.