EP 1431553 A2 20040623 - Intake air flow control system for internal combustion engine
Title (en)
Intake air flow control system for internal combustion engine
Title (de)
System zur Steuerung der Ansaugluftmenge für eine Brennkraftmaschine
Title (fr)
Système de commande de débit d'air pour moteur à combustion interne
Publication
Application
Priority
JP 2002350553 A 20021202
Abstract (en)
To provide an intake air flow control system for an internal combustion engine with which it is possible to prevent a rise in cost and to prevent adverse effects on the starting characteristics of the internal combustion engine. At the time of performing a reference position adjustment of an auxiliary intake air flow control valve, when both a first re-reading condition where the absolute value of the difference between a target idling engine speed and a current idling engine speed is smaller than a first threshold and a second re-reading condition where the absolute value of the difference between a calculated intake flow rate and a reference intake flow rate is greater than a second threshold are established, step S5 is performed in which a valve opening corresponding to the reference intake flow rate on a reference characteristic basis is used in place of a valve opening corresponding to the calculated intake flow rate.
IPC 1-7
IPC 8 full level
F02D 31/00 (2006.01); F02D 41/08 (2006.01); F02D 41/24 (2006.01)
CPC (source: EP)
F02D 31/005 (2013.01); F02D 41/2464 (2013.01); F02D 41/2441 (2013.01); F02D 2200/0402 (2013.01); F02D 2250/16 (2013.01)
Designated contracting state (EPC)
ES FR IT
DOCDB simple family (publication)
EP 1431553 A2 20040623; EP 1431553 A3 20091230; EP 1431553 B1 20130710; BR 0305302 A 20040831; BR 0305302 B1 20120502; CA 2449147 A1 20040602; CA 2449147 C 20070522; CN 1306158 C 20070321; CN 1508414 A 20040630; ES 2430822 T3 20131121; JP 2004183541 A 20040702; MX PA03011038 A 20041015; TW 200417683 A 20040916; TW I231839 B 20050501
DOCDB simple family (application)
EP 03104340 A 20031124; BR 0305302 A 20031125; CA 2449147 A 20031113; CN 200310118126 A 20031125; ES 03104340 T 20031124; JP 2002350553 A 20021202; MX PA03011038 A 20031201; TW 92129770 A 20031027