EP 0758429 B1 19990414 - CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (en)
CONTROL SYSTEM FOR AN INTERNAL COMBUSTION ENGINE
Title (de)
STEUERSYSTEM FÜR EINE BRENNKRAFTMASCHINE
Title (fr)
SYSTEME DE COMMANDE POUR MOTEUR A COMBUSTION INTERNE
Publication
Application
Priority
- DE 9500564 W 19950427
- DE 4415994 A 19940506
Abstract (en)
[origin: DE4415994A1] The invention relates to a control system for an internal combustion engine (100). The control system of the invention enriches the air/fuel mixture supplied to the engine (100) when a signal directly or indirectly giving the efficiency of the engine (100) falls below a threshold ( eta S). The enrichment prevents the exhaust gas temperature which rises with falling engine (100) efficiency to increase to the extent where the exhaust valve or the exhaust system, especially the exhaust catalyst (116), may suffer damage.
IPC 1-7
IPC 8 full level
F01N 3/20 (2006.01); F02D 37/02 (2006.01); F02D 41/04 (2006.01); F02D 41/14 (2006.01); F02D 43/00 (2006.01); F02D 45/00 (2006.01)
CPC (source: EP KR US)
F02D 37/02 (2013.01 - EP KR US); F02D 41/14 (2013.01 - KR); F02D 41/1475 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 4415994 A1 19951109; CN 1062640 C 20010228; CN 1146231 A 19970326; DE 59505662 D1 19990520; EP 0758429 A1 19970219; EP 0758429 B1 19990414; JP 3636723 B2 20050406; JP H10500187 A 19980106; KR 100346968 B1 20021228; KR 970702963 A 19970610; US 5829247 A 19981103; WO 9530827 A1 19951116
DOCDB simple family (application)
DE 4415994 A 19940506; CN 95192526 A 19950427; DE 59505662 T 19950427; DE 9500564 W 19950427; EP 95916569 A 19950427; JP 52858695 A 19950427; KR 19960706118 A 19961030; US 71833196 A 19960925