Engine control for limiting catalyst temperature in normal and economy modes
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United States of America Patent
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Feb 28, 2017
Grant Date -
Jun 18, 2015
app pub date -
Dec 17, 2013
filing date -
Dec 17, 2013
priority date (Note) -
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Abstract
Systems and methods for operating an engine of a vehicle during high engine loads are presented. In one example, fuel may be conserved at higher driver demand torques by limiting engine torque when the engine is operated in an economy mode. Additionally, two accelerator pedal position based fuel enrichment schedules are provided for operating the engine in different operating modes.
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