Method for determining the composition of a fuel blend

Details Method for determining the composition of a fuel blend Method for determining the composition of a fuel blend

2011-08-09

2011-08-09

Wolfe, Jr., Willis R (Department: 3747)

Data processing: vehicles, navigation, and relative location

Vehicle control, guidance, operation, or indication

With indicator or control of power plant

C701S109000, C701S114000, C073S114320, C073S114380

Reexamination Certificate

active

07996144

ABSTRACT:
The invention relates to a method for the open-loop control of an internal combustion engine, which is operated with a fuel blend of an initial and at least one second fuel, the internal combustion engine having a fuel metering system, a tank fill-level gauge for determining the tank content and a change in the tank content, a sensor for the detection of the cylinder charge for determining an air mass supplied to the internal combustion engine and at least one exhaust gas probe for determining and controlling the oxygen content in the exhaust gas in a closed-loop. According to the invention, two methods, which are independent from each other, are used for determining the composition of the fuel blend.

REFERENCES:
patent: 5282451 (1994-02-01), Yoshida et al.
patent: 5881703 (1999-03-01), Nankee et al.
patent: 5950606 (1999-09-01), Iida et al.
patent: 2009/0064969 (2009-03-01), Miersch-Wiemers
patent: 1 382 822 (2004-01-01), None

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