Method for correcting rotor angular measurement of electric machine of electrical propulsion system, involves subtracting modeled measurement error signal from rotor position signal for providing corrected rotor position signal

摘要

The method (20) involves detecting (21) a position signal (M) of a rotor of an electric machine (1). A measurement error signal (EM) of the rotor position signal is determined (22). The parameters (P) of a model course of the measurement error signal are determined (23). A modeled measurement error signal (EW) is calculated (24) on the basis of the determined parameters. The modeled measurement error signal is subtracted (25) from the rotor position signal for providing a corrected rotor position signal (Mk). Independent claims are included for the following: (1) a control device for correcting rotor angular measurement of electric machine; and (2) the electrical propulsion system.