Alleman Hall McCoy Russell & Tuttle LLP
Methods and systems for determining a fuel concentration in engine oil using an intake oxygen sensor
Methods and systems are provided for estimating a fuel concentration in engine oil in an engine crankcase. In one example, an engine controller may adjust engine operation such as EGR flow and engine fueling based on the estimated fuel concentration in engine oil. The fuel concentration may be based on an output of an intake oxygen sensor when purge and EGR flow are disabled, engine oil temperature, and fuel composition.
Ford Global Technologies, LLC
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James Eric Mohannad Gopichandra
Anderson Hakeem Surnilla