Engine control with fuel quality sensor

Internal-combustion engines – Spark ignition timing control – Electronic control

Reexamination Certificate

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C123S494000

Reexamination Certificate

active

06935311

ABSTRACT:
A system is described using a fuel quality sensor for controlling various aspects of engine operation. In particular, an acoustic wave sensor is utilized to measure viscosity and density of gasoline fuels. This measurement is utilized to predict engine combustion quality during an engine start. Based on the prediction, the method adjusts engine operating parameters (such as fuel injection amount and ignition timing) to achieve improved vehicle driveability and engine combustion.

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