EP 1529940 B1 20070307 - Common rail fuel injection apparatus
Title (en)
Common rail fuel injection apparatus
Title (de)
Common Rail Einspritzvorrichtung
Title (fr)
Dispositif d'injection common rail
Publication
Application
Priority
JP 2003376085 A 20031105
Abstract (en)
[origin: EP1529940A2] A common rail fuel injection apparatus includes a common rail (2), an injector (3), a supply pump (4), an inlet amount control valve (14), feedback control means, correction means, storage means, and a control device (5). The common rail (2) accumulates high-pressure fuel. The injector (3) injects the high-pressure fuel. The supply pump (4) sucks and pressurizes fuel to be supplied to the common rail (2). The inlet amount control valve (14) controls a flow amount of fuel sucked into the supply pump (4). The feedback control means obtains a proportional correction value and an integral correction value based on a pressure difference ( DELTA PC) between a target rail pressure and an actual rail pressure of the common rail (2) and obtains a driving current value or a pump discharge amount of the supply pump (4). The correction means obtains a correction value to correct a variation of the pump discharge amount. The storage means stores the correction value obtained by the correction means as a learned value when a condition has been satisfied. The control device corrects the driving current value or the pump discharge amount based on the learned value stored in the storage means. <IMAGE>
IPC 8 full level
F02D 41/06 (2006.01); F02D 41/14 (2006.01); F02D 41/20 (2006.01); F02D 41/24 (2006.01); F02D 41/30 (2006.01); F02D 41/38 (2006.01); F02D 45/00 (2006.01); F02M 47/00 (2006.01); F02M 51/00 (2006.01); F02M 55/02 (2006.01); F02M 59/06 (2006.01); F02M 59/20 (2006.01); F02M 59/34 (2006.01); F02M 59/46 (2006.01); F02M 63/02 (2006.01)
CPC (source: EP)
F02D 41/2464 (2013.01); F02D 41/3845 (2013.01); F02D 41/2441 (2013.01); F02D 2041/1409 (2013.01); F02D 2041/2058 (2013.01); F02D 2200/0604 (2013.01); F02D 2250/31 (2013.01)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 1529940 A2 20050511; EP 1529940 A3 20050831; EP 1529940 B1 20070307; DE 602004005127 D1 20070419; DE 602004005127 T2 20071213; JP 2005139975 A 20050602; JP 4111123 B2 20080702
DOCDB simple family (application)
EP 04026231 A 20041104; DE 602004005127 T 20041104; JP 2003376085 A 20031105