System for controlling adsorber regeneration
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United States of America Patent
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Sep 29, 2009
Grant Date -
May 8, 2008
app pub date -
Nov 7, 2006
filing date -
Nov 7, 2006
priority date (Note) -
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Abstract
A system, method, and software for regenerating an adsorber connected with a flow of exhaust from an engine. An open-loop control module for ramping up and maintaining a temperature value of an adsorber to a regeneration temperature value by controlling an air fuel ratio value of an engine to operate at an open-loop controlled variable duty cycle. A closed-loop control module is operable to take control from the open-loop control module to maintain the adsorber at the regeneration temperature value if the temperature value of the adsorber deviates from the regeneration temperature value by controlling the air fuel ratio value of the engine to operate at a closed-loop controlled variable duty cycle.
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