Electric power control with a dither signal

A computer program comprising program code for performing a method;

• wherein the method of the program code comprises determining a dither current based on a dither signal and a definite point in time, wherein the dither signal is determined by a frequency, an amplitude and a signal form;
• actuating a flow control valve to produce the sum of a target current and the determined dither current by the actuator;
• wherein the determining of the dither current and the actuating of the flow control valve are periodically traversed;
• determining an indication to the current flowing through the actuator;
• compensating the indication by the factor of the dither current;
• and providing the indication;
• wherein the determining of the dither current and the determining of the indication are synchronized with each other in a predetermined way;
• and
• wherein the computer program is performed on a processing device or stored on a computer-readable medium.

A device for controlling a current flowing through an actuator, the device comprising:

• a determining device for determining a dither current, based on a dither signal and a definite point in time, wherein the dither signal is determined via a frequency, an amplitude and a signal form;
• an actuating device for controlling a flow control valve to produce the sum of a target current and the specific dither current;
• a clock generator for actuating the determining device to periodically perform the determination;
• and
• a scanner for scanning an indication on a current flowing through the actuator and supplying the indication compensated by a factor of the dither current;
• wherein the determining device is synchronized with the scanner in a predetermined way.