EP 0668965 B1 19981209 - CONTROL SYSTEM FOR HIGH-PRESSURE FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Title (en)

CONTROL SYSTEM FOR HIGH-PRESSURE FUEL INJECTION SYSTEM FOR AN INTERNAL COMBUSTION ENGINE

Title (de)

STEUERSYSTEM FüR EIN HOCHDRUCK-KRAFTSTOFFEINSPRITZSYSTEM FüR EINE BRENNKRAFTMASCHINE

Title (fr)

REGULATEUR DU SYSTEME D'INJECTION DE CARBURANT A HAUTE PRESSION D'UN MOTEUR A COMBUSTION INTERNE

Publication

EP 0668965 B1 19981209 (EN)

Application

EP 94926233 A 19940902

Priority

EP 9402921 W 19940902
IT TO930645 A 19930903

Abstract (en)

[origin: WO9506813A1] An injection control system including a number of maps for determining various injection control quantities (Q, P, ANT, ET) on the basis of power demand (V alpha ) and engine speed (N). In the steady-state condition, fuel injection quantity (Q) is first calculated; injection pressure (P) and advance (ANT) are calculated on the basis of fuel injection quantity; and injection time (ET) is calculated on the basis of fuel injection quantity and injection pressure. Injection pressure is closed-loop controlled (30) by controlling the duty cycle of the supply current of a pressure regulating solenoid valve (7) connected to a high-pressure pump (6).

IPC 1-7

F02D 41/38; F02D 41/40

IPC 8 full level

F02D 41/02 (2006.01); F02M 47/00 (2006.01); F02D 41/20 (2006.01); F02D 41/24 (2006.01); F02D 41/38 (2006.01); F02D 41/40 (2006.01); F02D 45/00 (2006.01); F02B 3/06 (2006.01)

CPC (source: EP)

F02D 41/20 (2013.01); F02D 41/2422 (2013.01); F02D 41/3836 (2013.01); F02B 3/06 (2013.01); F02D 41/3809 (2013.01); F02D 2041/1432 (2013.01); F02D 2041/2027 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/31 (2013.01)

Designated contracting state (EPC)

DE FR GB IT SE

DOCDB simple family (publication)

WO 9506813 A1 19950309; DE 69415140 D1 19990121; DE 69415140 T2 19990602; EP 0668965 A1 19950830; EP 0668965 B1 19981209; IT 1261574 B 19960523; IT TO930645 A0 19930903; IT TO930645 A1 19950303; JP 3865767 B2 20070110; JP H08503052 A 19960402

DOCDB simple family (application)

EP 9402921 W 19940902; DE 69415140 T 19940902; EP 94926233 A 19940902; IT TO930645 A 19930903; JP 50795995 A 19940902