Air quantity estimation apparatus for internal combustion...

Details Air quantity estimation apparatus for internal combustion... Air quantity estimation apparatus for internal combustion...

2008-09-02

2008-09-02

McCall, Eric S (Department: 2855)

Measuring and testing

Simulating operating condition

Marine

Reexamination Certificate

active

11661872

ABSTRACT:
This air quantity estimation apparatus includes models M2to M7which are configured on the basis of physical laws. The apparatus estimates pressure Pic and temperature Tic of air within the intercooler, by use of the compressor model M4and the intercooler model M5,in consideration of a first energy Ecm, which a supercharger91(a compressor91a) imparts to air supplied into an intercooler45,and a second energy, which is exchanged between a wall of the intercooler and air within the intercooler. The apparatus estimates cylinder intake-air quantity KLfwd at a future point in time later than a present point in time based on the estimated pressure and the estimated temperature of air within the intercooler.

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