Diagnostic method for an internal combustion engine through...

Details Diagnostic method for an internal combustion engine through... Diagnostic method for an internal combustion engine through...

F - Mech Eng,Light,Heat,Weapons

02

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F02D 41/00 (2006.01) F02D 21/08 (2006.01) F02D 41/14 (2006.01) F02D 41/22 (2006.01) F02M 25/07 (2006.01)

Patent

CA 2694918

The diagnostic method for a Diesel engine for determining whether this engine, or at least one device connected thereto, is affected by one or several malfunctions negatively influencing the degree of pollution of the exhaust gases produced by this engine, comprises the steps of analyzing the level of an exhaust gas or the evolution of this level, alone or together with the level or evolution of the level of another gas, according to a predetermined state of the engine and characterizing, from said analysis, any malfunction (s) affecting the Diesel engine and/or the devices associated with it. The invention also concerns a device for implementing this method and a computer program executable on the device.

Selon la présente invention, le procédé de diagnostic pour un moteur diesel permettant de déterminer si ce moteur, ou au moins un dispositif connecté à celui-ci, est affecté par un ou plusieurs dysfonctionnements ayant une influence négative sur le degré de pollution des gaz d'échappement produits par ce moteur, comprend les étapes consistant à analyser le niveau d'un gaz d'échappement ou l'évolution de ce niveau, seul ou avec le niveau ou l'évolution du niveau d'un autre gaz, selon un état prédéterminé du moteur et à caractériser, à partir de ladite analyse, tout dysfonctionnement (s) affectant le moteur diesel et/ou les dispositifs associés à celui-ci. L'invention a également trait à un dispositif permettant de mettre en uvre ce procédé et à un programme informatique pouvant être exécuté sur le dispositif.

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