Method for determining the remaining running time a drive runs
AssigneeRobert Bosch GmbH
InventorPatric Kahles
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Abstract
The invention is based on a method for determining the remaining running time of an electric drive mechanism until a mechanical limit stop has been reached, wherein surfaces to be closed are moved into mechanically limited end positions by means of the drive mechanism. After the position of the surface to be closed is detected relative to a mechanical limit stop, the time difference between two incremental pulse generators 25 near the limit stop is determined, and the remaining running time 26 of the electric drive mechanism until the mechanical limit stop is reached is calculated.
Claims10
A method for determining a remaining running time of an electrical drive mechanism until a limit stop is reached, wherein said drive mechanism moves a window or sunroof to be closed to a mechanical end position, said method comprising the steps of:
- a) determining a position of the window or the sunroof relative to said mechanical end position;
- b) measuring a time difference between two incremental pulses when said position of said window or said sunroof is within a predetermined distance from said mechanical end position;
- and
- c) calculating said remaining running time of the electric drive mechanism for reaching said mechanical end position from said time difference.
Dependencies are inferred from the claim text.