Method for determining the injected fuel mass of a single injection and device for carrying out the method

• Main Authors: SOMMERER, ANDREAS, BEUER, WOLFGANG, OLBRICH, STEPHAN, MEYER-SALFELD, STEFFEN
• Format: Patent
• Language: English; French; German
• Published: 27.01.2010
• Subjects: BLASTING; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; COMBUSTION ENGINES; CONTROLLING COMBUSTION ENGINES; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; WEAPONS

The method involves determining a correction variable of an individual injection arrangement by comparing masses of actual quantity of injected fuel during a test injection process and masses of a preset target quantity of fuel required for the test injection process. The test injection process is carried based on the masses for the preset target quantity, where a set of directly sequenced test injection processes are carried out in a preset time period. Each test injection process is performed corresponding to quantity of individual injection to be measured. Independent claims are also included for the following: (1) a device for operating an internal-combustion engine, comprising a controller (2) a computer program having a set of instructions for executing a method for determining a combustion chamber in an internal-combustion engine (3) a computer program product with a program code comprising a set of instructions for executing a method for determining a combustion chamber in an internal-combustion engine. Ein Verfahren zur Bestimmung einer in wenigstens einen Brennraum einer Brennkraftmaschine mittels wenigstens einer Einspritzung unter hohem Druck eingespritzten Kraftstoffmasse einer Einzeleinspritzung, wobei mittels eines Vergleichs eines Maßes für die Istmenge des eingespritzten Kraftstoffs wenigstens einer Testeinspritzung, die aufgrund eines Maßes für eine vorgegebene Sollmenge einer gewünschten Einzeleinspritzung vorgenommen wird, und des Maßes für die Sollmenge der Teileinspritzung eine Korrekturgröße für die Einzeleinspritzung festgelegt wird, ist dadurch gekennzeichnet, dass eine Mehrzahl von zeitlich unmittelbar aufeinanderfolgender Testeinspritzungen vorgenommen wird.