Method and arrangement for controlling the position of an actuating element
AssigneeRobert Bosch GmbH
InventorsAlex Grossmann, Torsten Baumann
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Abstract
The invention is directed to a method and an arrangement for controlling the position of an actuating element (1) which prevent damage to the actuating element by a collision with at least one stop (25, 30) and simultaneously ensure good dynamic characteristics. The position of the actuating element (1) tracks a desired value within a displacement range. The displacement range is limited for the actuating element (1) by at least one stop (25, 30). A check is made as to whether the distance between the desired value for the position of the actuating element (1) and the at least one stop (25, 30) drops below a pregiven value (S1). Only in this case is a change of the desired value limited.
Claims8
A method for controlling the position of an actuating element, the method comprising the steps of:
- causing said actuating element to track a desired value for the position of said actuating element within a displacement range with said displacement range being limited by at least one stop for said actuating element;
- checking whether the distance between said desired value and said one stop drops below a first pregiven value (S1);
- and,
- if so, and only in this case, limiting a change of said desired value.
An arrangement for controlling the position of an actuating element, the arrangement comprising:
- means for bringing the position of said actuating element closer to a desired value for the position of said actuating element within a displacement range;
- at least one stop for said actuating element for limiting said displacement range;
- means for limiting a change of said desired value;
- means for checking whether the distance between said desired value and said one stop drops below a first pregiven value (S1);
- and,
- means for activating said limiting means only when said distance drops below said first pregiven value (S1).
Dependencies are inferred from the claim text.