Elektronische Vorrichtung zum Steuern des Luft-Kraftstoff-Verhältnisses des einem Verbrennungsmotor zugeführten Gasgemisches

Control device in which a linear oxygen sensor (20) arranged on a gas exhaust pipe (5) of an internal-combustion engine (2) upstream of a catalytic converter (8) generates a signal supplied to a conversion circuit generating at its output a measured parameter ( lambda m) representing the air/fuel ra...

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Hauptverfasser:	POGGIO, LUCA, SECCO, MARCO, BOMBARDA, GIORGIO
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
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creator	POGGIO, LUCA SECCO, MARCO BOMBARDA, GIORGIO
description	Control device in which a linear oxygen sensor (20) arranged on a gas exhaust pipe (5) of an internal-combustion engine (2) upstream of a catalytic converter (8) generates a signal supplied to a conversion circuit generating at its output a measured parameter ( lambda m) representing the air/fuel ratio of the mixture supplied to the engine (2). The measured parameter ( lambda m) is compared with a target parameter ( lambda o) so as to calculate an error parameter which is used, according to an operating method, to generate, where necessary, a bistable dummy signal variable between a positive saturation value (P1) and a negative saturation value (-P1) so as to model the output of an oxygen sensor of the ON/OFF type. The dummy signal is also processed so as to calculate a correction parameter (KO2) designed to be used for correction of a theoretical value (Qb) of a calculated quantity of fuel (40), obtaining a corrected quantity of fuel (Qbt) for an injection system (10) of the engine.
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subjects	BLASTING COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MECHANICAL ENGINEERING WEAPONS
title	Elektronische Vorrichtung zum Steuern des Luft-Kraftstoff-Verhältnisses des einem Verbrennungsmotor zugeführten Gasgemisches
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