EP 2513459 A1 20121024 - DIAGNOSTIC METHOD FOR A DIESEL ENGINE
Title (en)
DIAGNOSTIC METHOD FOR A DIESEL ENGINE
Title (de)
DIAGNOSEVERFAHREN FÜR EINEN DIESELMOTOR
Title (fr)
PROCÉDÉ DIAGNOSTIQUE POUR UN MOTEUR DIESEL
Publication
Application
Priority
- LU 91630 A 20091214
- EP 2010069596 W 20101214
Abstract (en)
[origin: WO2011073175A1] The present invention is related to a diagnostic method for a Diesel engine for determining whether said engine is affected by one or several malfunctions negatively impacting the degree of pollution of the exhaust gases produced by said engine, comprising the steps of providing a Diesel engine comprising a motor block, air intake means, exhaust gas outlet means and fuel injection means, measuring, according to a predetermined state of said engine, the level, or the evolution of said level, of a first exhaust gas emitted by the internal combustion engine, said exhaust gas being selected from the group consisting in carbon dioxide (CO2), carbon monoxide (CO), nitrogen oxides (NOx) and unburnt hydrocarbons (HC) or a combination thereof, measuring the overall exhaust gas output, measuring at least one operating parameter, said operating parameter being selected from the group consisting of engine speed, engine charge, air inflow, forced induction pressure, water temperature, pressure of the high pressure feeding circuit, fuel inflow, set point of opening of the exhaust gas recirculation valve, individual injector volume correction, exhaust gas temperature, differential pressure on the particulate filter or a combination thereof, and analysing the measures performed by a comparison of said measures to the ones being characteristic of one or several predetermined normal or abnormal states of said engine, deducing from said measures, a malfunction affecting said engine.
IPC 8 full level
F02D 41/22 (2006.01); G01M 15/10 (2006.01)
CPC (source: EP)
F02D 41/1448 (2013.01); F02D 41/1461 (2013.01); F02D 41/1463 (2013.01); F02D 41/22 (2013.01); G01M 15/102 (2013.01); F02D 41/1446 (2013.01); F02D 41/187 (2013.01); F02D 2200/0406 (2013.01); Y02T 10/40 (2013.01)
Citation (search report)
See references of WO 2011073175A1
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
DOCDB simple family (publication)
WO 2011073175 A1 20110623; EP 2513459 A1 20121024; LU 91630 B1 20110615
DOCDB simple family (application)
EP 2010069596 W 20101214; EP 10798531 A 20101214; LU 91630 A 20091214