Control system for a butterfly valve

Details Control system for a butterfly valve Control system for a butterfly valve

1995-03-29

1996-10-22

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

F02D 700

Patent

active

055666566

ABSTRACT:
A control system for a butterfly valve in the intake tract of an internal combustion engine is described. The control system utilizes an actual value sensor to determine the relative position of a motor control part. The actual value sensor changes its sensitivity, using a high resolution only across a part of its total range of movement and a lower resolution across the remainder, allowing the same actual value sensor to be used for idle control and speed control.

REFERENCES:
patent: 5259349 (1993-11-01), Radlinski
patent: 5323747 (1994-06-01), Buchl
patent: 5327865 (1994-07-01), Riehemann
patent: 5339782 (1994-08-01), Golzer et al.
patent: 5381769 (1995-01-01), Nishigaki et al.

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