Système de commande d'admission d'air pour moteur à combustion interne à déplacement variable

Lufteinlasssteuerungssystem für eine Innenbrennkraftmaschine mit veränderlichem Hub

Air induction control system for variable displacement internal combustion engine

Abstract

A control system for a variable displacement internal combustion engine determines effective flow cross sectional area as a predetermined function of a cross sectional area given against a throttle position. The effective flow cross sectional area is used to determine a volumetric airflow ratio. A control unit is connected with cylinder operator means for deactivating and reactivating at least some of engine cylinders and varying strokes in a cycle. The control unit modifies the predetermined function in response to the number of cylinders being activated and the number of strokes in a current cycle.

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Patent Citations (4)

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    EP-0397521-A1November 14, 1990Isuzu Ceramics Research Institute Co., Ltd.Steuerungssystem für den Motorzyklus
    US-4873641-AOctober 10, 1989Nissan Motor Company, LimitedInduction volume sensing arrangement for an internal combustion engine or the like
    US-5398544-AMarch 21, 1995Ford Motor CompanyMethod and system for determining cylinder air charge for variable displacement internal combustion engine
    WO-9914476-A1March 25, 1999Robert Bosch GmbhProcede et dispositif pour determiner le degre d'admission de gaz d'un moteur a combustion interne

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