Clutch actuator, sensing system and method for sensing an angular position of a rotational component

A method for detecting an angular position of a rotational component rotatable about a rotational axis, the method comprising:

• providing, via a sensor unit, a first sensor signal and a second sensor signal to an evaluation unit, wherein the first sensor signal is dependent on the angular position and is associated with a first detection position, and the second sensor signal is associated with a second detection position lying about the rotational axis perpendicular to the first detection position;
• determining via the evaluation unit, the angular position based on output from an atan2-function that takes the first and second sensor signals as input;
• determining, via the evaluation unit, a harmonic error based on a periodic error signal that is superimposed on each of the sensor signals;
• determining, via the evaluation unit, an angular error of the angular position based on the harmonic error;
• and
• updating, via the evaluation unit, the angular position based on the angular error.