EP 1170494 A3 20030122 - Process and device for regulating the richness of an air/fuel mixture feeding an internal-combustion engine
Title (en)
Process and device for regulating the richness of an air/fuel mixture feeding an internal-combustion engine
Title (de)
Verfahren und Vorrichtung zur Regelung des einem Verbrennungsmotor zugeführten Kraftstoff-Luftgemischgehaltes
Title (fr)
Procédé de régulation de la richesse du mélange carburant/air d'alimentation d'un moteur à combustion
Publication
Application
Priority
FR 0008889 A 20000707
Abstract (en)
[origin: EP1170494A2] During a particular functioning phase of the engine (12) which causes a variation in the richness of the mixture, the proportional value (Bprop) and the integral value (Bint) are multiplied by a first and second coefficient (D1 and D2) respectively, which are greater than or equal to 1, in such a manner as to accelerate the return of the stoichiometric richness and to minimize the production of pollutants. The quantity of fuel injected (Q) depends upon the proportional value and the integral value which are determined from the pressure in the intake manifold and the engine state.
IPC 1-7
IPC 8 full level
F02D 41/02 (2006.01); F02D 41/14 (2006.01)
CPC (source: EP)
F02D 41/0235 (2013.01); F02D 41/1477 (2013.01); F02D 41/1482 (2013.01); F02D 41/1483 (2013.01); F02D 41/1486 (2013.01); F02D 2041/1409 (2013.01); F02D 2041/1422 (2013.01)
Citation (search report)
- [Y] US 5220904 A 19930622 - MIYASHITA YUKIO [JP], et al
- [Y] US 4878472 A 19891107 - HIBINO YOSHITAKA [JP]
- [A] GB 2248315 A 19920401 - BOSCH GMBH ROBERT [DE]
- [A] US 5492107 A 19960220 - FURUYA JUNICHI [JP]
- [A] US 5345921 A 19940913 - IWANO HIROSHI [JP], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1170494 A2 20020109; EP 1170494 A3 20030122; EP 1170494 B1 20060802; DE 60121872 D1 20060914; DE 60121872 T2 20070215; ES 2264680 T3 20070116; FR 2811375 A1 20020111; FR 2811375 B1 20030221
DOCDB simple family (application)
EP 01401653 A 20010622; DE 60121872 T 20010622; ES 01401653 T 20010622; FR 0008889 A 20000707