Method of determining a combustion-dependent magnitude in an internal combustion engine

A method of determining a form factor for energy conversion in the combustion chamber of a cylinder of an internal combustion engine comprises the steps of measuring the combustion chamber pressure course by means of a pressure sensor (14 to 17) and also engine crankshaft angle (α), and comparing th...

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Bibliographische Detailangaben
Hauptverfasser:	DIRK-RENE BOEHM, MATTHIAS KUESELL
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MEASURING MECHANICAL ENGINEERING PHYSICS TESTING TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR WEAPONS
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Beschreibung
Zusammenfassung:	A method of determining a form factor for energy conversion in the combustion chamber of a cylinder of an internal combustion engine comprises the steps of measuring the combustion chamber pressure course by means of a pressure sensor (14 to 17) and also engine crankshaft angle (α), and comparing the pressure course, after correlation with crankshaft angle, with a combustion chamber pressure course to be expected in towed operation. The obtained difference pressure course is then evaluated for the formation of a form factor which is formed with the aid of geometric relationships (fig.4, not shown), which are so chosen that the difference pressure integral is replicated as accurately as possible, by means of regulation of the fuel injection.