EP 2449240 B1 20200624 - METHOD FOR CONTROLLING THE RAIL PRESSURE IN A COMMON-RAIL INJECTION SYSTEM OF A COMBUSTION ENGINE
Title (en)
METHOD FOR CONTROLLING THE RAIL PRESSURE IN A COMMON-RAIL INJECTION SYSTEM OF A COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR REGELUNG DES RAILDRUCKS IN EINEM COMMON-RAIL EINSPRITZSYSTEM EINER BRENNKRAFTMASCHINE
Title (fr)
PROCÉDÉ DE RÉGLAGE DE LA PRESSION DU RAIL DANS UN SYSTÈME D'INJECTION À RAIL COMMUN D'UN MOTEUR À COMBUSTION
Publication
Application
Priority
- EP 2010003654 W 20100617
- DE 102009031528 A 20090702
Abstract (en)
[origin: WO2011000480A1] Proposed is a method for open-loop and closed-loop control of an internal combustion engine (1), the rail pressure (pCR) being controlled via a low pressure-side suction throttle valve (4) as the first pressure-adjusting element in a rail pressure control loop. The invention is characterized in that a rail pressure disturbance variable is generated to influence the rail pressure (pCR) via a high pressure-side pressure control valve (12) as the second pressure-adjusting element, by means of which fuel is redirected from the rail (6) into a fuel tank (2).
IPC 8 full level
F02D 41/38 (2006.01); F02M 63/02 (2006.01); F02D 41/14 (2006.01); F02D 41/20 (2006.01)
CPC (source: EP US)
F02D 41/3854 (2013.01 - EP US); F02D 41/3863 (2013.01 - EP US); F02M 63/025 (2013.01 - EP US); F02D 41/1401 (2013.01 - EP US); F02D 2041/141 (2013.01 - EP US); F02D 2041/1418 (2013.01 - EP US); F02D 2041/1432 (2013.01 - EP US); F02D 2041/2027 (2013.01 - EP US); F02D 2250/31 (2013.01 - EP US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO SE SI SK SM TR
DOCDB simple family (publication)
DE 102009031528 B3 20101111; CN 102575610 A 20120711; CN 102575610 B 20150128; EP 2449240 A1 20120509; EP 2449240 B1 20200624; US 2012097131 A1 20120426; US 9624867 B2 20170418; WO 2011000480 A1 20110106
DOCDB simple family (application)
DE 102009031528 A 20090702; CN 201080031067 A 20100617; EP 10725397 A 20100617; EP 2010003654 W 20100617; US 201013381878 A 20100617