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1. (WO2014198388) DETERMINING START OF INJECTION OF AN INJECTOR OF AN INTERNAL COMBUSTION ENGINE

Pub. No.:    WO/2014/198388    International Application No.:    PCT/EP2014/001491
Publication Date: Fri Dec 19 00:59:59 CET 2014 International Filing Date: Wed Jun 04 01:59:59 CEST 2014
IPC: F02D 41/38
F02D 41/26
Applicants: MTU FRIEDRICHSHAFEN GMBH
Inventors: WALDER, Michael
MEHR, Andreas
MLICKI, Frank
STAUDT, Markus
GERBETH, Robby
Title: DETERMINING START OF INJECTION OF AN INJECTOR OF AN INTERNAL COMBUSTION ENGINE
Abstract:
The invention relates to a method for determining a start of injection of an injector (11) of an internal combustion engine (1), comprising the following steps: - time-resolved detecting of an individual storage pressure curve (p, 23) in a measurement interval; - determining a test injection start (TS) with the aid of the individual storage pressure curve (p, 23); - determining a tendency (25) of the individual storage pressure curve (p, 23) in a predetermined test interval (Δί) prior to the test injection start (TS); - correcting the individual storage pressure curve (p, 23) subject to said tendency (25); and - determining a start of injection with the aid of the corrected individual storage pressure curve (27).