EP 2518297 A3 20140305 - Detection and reduction of an injection volume difference in a combustion engine with multiple cylinders
Title (en)
Detection and reduction of an injection volume difference in a combustion engine with multiple cylinders
Title (de)
Bestimmung und Verringerung eines Einspritzmengenunterschieds bei einem Verbrennungsmotor mit mehreren Zylindern
Title (fr)
Détermination et limitation d'un décalage d'une quantité d'injection dans un moteur à combustion interne doté de plusieurs cylindres
Publication
Application
Priority
DE 102011100109 A 20110430
Abstract (en)
[origin: EP2518297A2] The consecutive pressure values of pressure tube (14) are acquired before fuel injection into cylinder for all cylinders (2-5). The consecutive pressure values of pressure tubes after the injection of fuel into cylinder are acquired for each cylinder. The statistical analysis of acquired pressure values is performed. The pressure difference value of cylinder is determined based on acquired pressure values, when the pressure values satisfy preset statistical property. The fuel injection quantity difference of cylinders is determined as function of pressure difference value. An independent claim is included for device for determining injection quantity difference of cylinders in internal combustion engine.
IPC 8 full level
F02D 41/00 (2006.01); F02D 41/24 (2006.01); F02D 41/28 (2006.01)
CPC (source: EP)
F02D 41/0085 (2013.01); F02D 41/2467 (2013.01); F02D 2041/286 (2013.01); F02D 2200/0602 (2013.01)
Citation (search report)
- [XAI] DE 102008033754 A1 20100121 - CONTINENTAL AUTOMOTIVE GMBH [DE]
- [XAI] DE 102008016662 A1 20091015 - CONTINENTAL AUTOMOTIVE GMBH [DE]
- [XAI] EP 1085193 A2 20010321 - ISUZU MOTORS LTD [JP]
- [XAI] US 2009164086 A1 20090625 - GEVECI MERT [US], et al
- [A] US 6304208 B1 20011016 - NAGASHIMA YOSHIKAZU [JP]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 2518297 A2 20121031; EP 2518297 A3 20140305; EP 2518297 B1 20160224; DE 102011100109 A1 20121031
DOCDB simple family (application)
EP 12001303 A 20120228; DE 102011100109 A 20110430