Fuel delivery control based on estimated fuel temperature

Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – With indicator or control of power plant

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F02D41/00

Patent

active

059023465

ABSTRACT:
In one embodiment of the present invention, a method for estimating temperature of fuel in a fuel delivery system of a motor vehicle engine includes the step of calculating a fuel temperature estimate in an engine running state as a function of fuel flow rate, engine coolant temperature and intake air temperature.
In a second embodiment of the present invention, a method for estimating temperature of fuel in a fuel delivery system of a motor vehicle engine includes the step of calculating a fuel temperature estimate in an engine not running state as a function of a fuel temperature estimate when the engine was last in a running state, time the engine has been in the not running state, engine coolant temperature and intake air temperature.

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