Automative engine idle speed control
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United States of America Patent
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-
Sep 15, 1998
Grant Date -
N/A
app pub date -
Oct 6, 1997
filing date -
Oct 6, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A system for controlling the idle speed of an automotive engine selects a desired initial idle speed based on a sensed value of at least one engine operating parameter and operates an idle speed module to maintain the engine's idle speed at the desired initial speed. Thereafter, the system determines a desired total heat build for the engine as a function of at least one engine operating parameter and adjusts the idle speed according to a calculated actual heat build for the engine while the engine is operating.
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