Apparatus for controlling the position of control member

Details Apparatus for controlling the position of control member Apparatus for controlling the position of control member

1993-12-20

1995-04-18

Nelli, Raymond A.

Internal-combustion engines

Engine speed regulator

Open loop condition responsive

F02D 700

Patent

active

054069203

ABSTRACT:
An apparatus for controlling a DC motor connected to an intake throttle valve in an internal combustion engine to detect an actual opening degree of the intake throttle valve and to match the actual opening degree with a command opening degree. The apparatus includes a feedback loop for defining a feedback signal indicative of a command to converge the actual opening degree of the control member to the command opening degree by reception of the command opening degree delivered by a command opening degree generating means and the actual opening degree delivered by an actual opening degree detecting means, a combined-signal generating means for combining the feedback signal defined by the feedback loop with the command opening degree delivered by the command opening degree generating means, and a motor driving means for driving the DC motor in response to an output from the combined-signal generating means. Thus, it is possible to converge the actual opening degree of the intake throttle valve to the command opening degree with a good responsiveness and a good positioning accuracy.

REFERENCES:
patent: 5235951 (1993-08-01), Taguchi et al.
patent: 5327865 (1994-07-01), Riehmann
patent: 5333584 (1994-08-01), Kamio et al.
patent: 5339782 (1994-08-01), Golzer et al.
patent: 5349932 (1994-09-01), Boverie et al.

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