System to monitor the efficiency on a catalytic converter, in particular for motor vehicules

The efficiency of a catalyser (C) is evaluated starting from output signals (S7, S8) of two lambda probes (L1, L2) disposed upstream and downstream respectively of the catalyser (C). In particular, a signal obtained by calculating the difference between the time averages (V1, V2) obtained by integra...

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Bibliographic Details
Main Authors ARONICA, ANTONINO, CIASULLO, MARCO, CARNEVALE, CLAUDIO
Format Patent
LanguageEnglish
French
German
Published 05.06.1996
Edition6
Subjects
BLASTING
COMBUSTION ENGINES
COMBUSTION ENGINES IN GENERAL
ENGINE PLANTS IN GENERAL
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
INTERNAL-COMBUSTION PISTON ENGINES
LIGHTING
MACHINES OR ENGINES IN GENERAL
MECHANICAL ENGINEERING
STEAM ENGINES
WEAPONS
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Summary:The efficiency of a catalyser (C) is evaluated starting from output signals (S7, S8) of two lambda probes (L1, L2) disposed upstream and downstream respectively of the catalyser (C). In particular, a signal obtained by calculating the difference between the time averages (V1, V2) obtained by integration and subsequent division for the duration of an integration window of output signals (S7, S8) of these probes (L1,L2) is used as the signal indicative of efficiency.
Bibliography:Application Number: EP19950118278