Global Patent Index - EP 0442819 B1

EP 0442819 B1 19931208 - Process for optimizing the restart injection in a fuel injected engine.

Title (en)

Process for optimizing the restart injection in a fuel injected engine.

Title (de)

Optimierungsverfahren der Einspritzung für das Wiederaufstarten einer mit Kraftstoff eingespritzten Brennkraftmaschine.

Title (fr)

Procédé d'optimisation de l'injection au redémarrage à injection de carburant.

Publication

EP 0442819 B1 19931208 (FR)

Application

EP 91400390 A 19910215

Priority

FR 9001843 A 19900215

Abstract (en)

[origin: EP0442819A1] Process for optimizing the functioning of a multi-cylinder, fuel-injection engine for motor vehicles, characterised in that it consists in injecting, during the period of a start-up (n+1), a quantity (Qn+1) of fuel into the engine equal to a theoretical quantity (Qo) calculated as a function of the speed of rotation and of the temperature of the engine at the start-up, multiplied by a correction factor (Fc<n+1>) which is determined by repetition on the basis of: - the value of the correction factor (Fc<n>) determined during the previous start-up (n) - the stoppage or rest time (t<n>) between the moment of its last stoppage (Ts<n>) and the moment of the starting (Td<n+1>). r

IPC 1-7

F02D 41/06

IPC 8 full level

F02D 41/06 (2006.01); F02D 41/04 (2006.01)

CPC (source: EP)

F02D 41/061 (2013.01); F02D 41/065 (2013.01); F02D 41/042 (2013.01)

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 0442819 A1 19910821; EP 0442819 B1 19931208; DE 69100729 D1 19940120; DE 69100729 T2 19940519; ES 2047382 T3 19940216; FR 2658243 A1 19910816; FR 2658243 B1 19940729

DOCDB simple family (application)

EP 91400390 A 19910215; DE 69100729 T 19910215; ES 91400390 T 19910215; FR 9001843 A 19900215