CPC B60J 7/0573 (2013.01) [B60J 7/043 (2013.01); H02H 7/0854 (2013.01)] | 19 Claims |
1. A method of detecting a movement obstruction of a movably arranged vehicle component driven by an electric motor, the electric motor being supplied with a motor current, the method comprising:
supplying the electric motor with a supply voltage, thereby supplying the motor current;
determining a frequency content of the motor current; and
analysing the frequency content to determine whether the movement obstruction is present or not, comprising filtering the frequency content of the motor current with a frequency filter, comparing a filter output of the frequency filter with a threshold value, and based on a comparison of the filter output of the frequency filter with the threshold value determining whether the movement obstruction is present or not.
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