EP 0856653 B1 20010509 - Electronic system for calculating mixture strength
Title (en)
Electronic system for calculating mixture strength
Title (de)
Elektronisches Berechnungssystem der Gemischzusammensetzung
Title (fr)
Système électronique pour calculer la richesse du mélange
Publication
Application
Priority
- EP 94117678 A 19941109
- IT TO930857 A 19931112
Abstract (en)
[origin: EP0657637A2] System for calculating mixture strength in which an electronic panel (7) is capable of comparing the voltage generated by exhaust gas sensors, in particular from a lambda probe (19) located in the exhaust manifold (21) of a petrol engine (4), with a threshold value (Str) such as to distinguish between a first and a second state (rich state/lean state), corresponding to an air/petrol mixture supplied to the engine which contains more or less petrol, respectively, than is required by the stoichiometric ratio. The system enables this threshold to be updated periodically. <IMAGE>
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01); F02B 1/04 (2006.01)
CPC (source: EP)
F02D 41/1474 (2013.01); F02D 41/1479 (2013.01); F02D 41/148 (2013.01); F02D 41/1495 (2013.01); F02D 41/2454 (2013.01); F02D 41/2474 (2013.01); F02B 1/04 (2013.01)
Designated contracting state (EPC)
DE ES FR GB SE
DOCDB simple family (publication)
EP 0657637 A2 19950614; EP 0657637 A3 19951011; EP 0657637 B1 19981007; BR 9404572 A 19951024; DE 69413784 D1 19981112; DE 69413784 T2 19990225; DE 69427199 D1 20010613; DE 69427199 T2 20011018; DE 69430017 D1 20020404; DE 69430017 T2 20020814; EP 0855498 A2 19980729; EP 0855498 A3 19980826; EP 0855498 B1 20020227; EP 0856653 A2 19980805; EP 0856653 A3 19980826; EP 0856653 B1 20010509; ES 2125389 T3 19990301; ES 2158630 T3 20010901; ES 2172836 T3 20021001; IT 1261114 B 19960509; IT TO930857 A0 19931112; IT TO930857 A1 19950512
DOCDB simple family (application)
EP 94117678 A 19941109; BR 9404572 A 19941110; DE 69413784 T 19941109; DE 69427199 T 19941109; DE 69430017 T 19941109; EP 98105227 A 19941109; EP 98105228 A 19941109; ES 94117678 T 19941109; ES 98105227 T 19941109; ES 98105228 T 19941109; IT TO930857 A 19931112