Arrangement for detecting measuring data in motor vehicles
AssigneeRobert Bosch GmbH
InventorRolf Kohler
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Abstract
An arrangement for detecting data in motor vehicles is disclosed especially in combination with the open or closed loop control of internal combustion engines. The arrangement includes at least one potentiometer as a data detector which permits, in at least one boundary region of the potentiometer band, the boundary values to be made to follow the measured value. Thus, a self-adjusting measuring arrangement is obtained which largely eliminates the need for manual fine adjustment. A flowchart discloses a computer-controlled realization of the invention.
Claims6
An arrangement for detecting measuring data in motor vehicles especially in combination with apparatus for controlling the internal combustion engine, the arrangement comprising:
- a potentiometer having a potentiometer track and a slider movable along said track detecting data between boundary values (DKmin and DKmax) of a measuring range disposed along a portion of said track, said boundary values together with said measuring range being shiftable in a first direction along said track or in a second direction therealong opposite to said first direction because of an external influence such as drift caused by component aging, inaccuracies introduced by repair work or the like;
- means for electrically shifting at least one of said boundary values (DKmax, DKmin) is one of said directions so as to coincide with a measured value (DKmeas) thereof detected by said slider;
- and,
- means for causing the electrical shift of said boundary value to occur at first and second speeds in dependence upon in which of said two directions the boundary value (DKmax, DKmin) is shifted, said first speed being greater than said second speed.
Dependencies are inferred from the claim text.