Engine control system with motorized butterfly body
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Jan 9, 1996
Grant Date -
N/A
app pub date -
Jun 28, 1994
filing date -
Oct 29, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An engine control system for a spark ignition internal combustion engine of a vehicle equipped with a fuel injection system, including a motorized butterfly unit having a body, a butterfly rotatably mounted on a spindle in a passage through the body, a butterfly position sensor mounted on one end of the spindle and a butterfly actuator mounted on the other side of the spindle. An engine control unit, which is connected to sensors for detecting engine operation parameters and to the accelerator pedal, generates injection and ignition commands as well as a reference position of the butterfly, which is transmitted by a connecting line to the butterfly control unit. The butterfly control unit sets the position of the butterfly to the reference position and transmits the butterfly position signal via the connecting line to the engine control unit.
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