| 摘要 |
The invention relates to a method for controlling a brushless electric motor that comprises a rotor able to rotate about a rotor axis, a stator having at least two, preferably three, stator coils (L1, L2, L3) arranged at an offset to one another, and an angle measurement device (W) for determining the current rotational position of the rotor in its rotation. In said method, the current rotational position of the rotor is continuously measured, at least intermittently, by the angle measurement device (W) which supplies an angle measurement signal. The at least two stator coils (L1, L2, L3) are energised with one coil current each, in order to generate a magnetic rotational field. A BEMF signal (BEMF1, BEMF2, BEMF3) representing the induced BEMF voltage is generated for at least one of the stator coils (L1, L2, L3). The angle measurement signal of the angle measurement device (W) is corrected on the basis of the BEMF signal (BEMF1, BEMF2, BEMF3) for the at least one stator coil (L1, L2, L3). The energising of the at least two stator coils (L1, L2, L3) is controlled on the basis of the corrected angle measurement signal of said angle measurement device (W). |
