EP 2358987 B1 20120919 - CONTROL AND REGULATION METHOD FOR AN INTERNAL COMBUSTION ENGINE HAVING A COMMON RAIL SYSTEM
Title (en)
CONTROL AND REGULATION METHOD FOR AN INTERNAL COMBUSTION ENGINE HAVING A COMMON RAIL SYSTEM
Title (de)
STEUERUNG- UND REGELUNGSVERFAHREN FÜR EINE BRENNKRAFTMASCHINE MIT EINEM COMMON-RAILSYSTEM
Title (fr)
PROCÉDÉ DE COMMANDE ET DE RÉGULATION D'UN MOTEUR À COMBUSTION INTERNE ÉQUIPÉ D'UN SYSTÈME À RAMPE COMMUNE
Publication
Application
Priority
- EP 2009007988 W 20091109
- DE 102008058721 A 20081124
Abstract (en)
[origin: WO2010057587A1] The invention relates to a control and regulation method for an internal combustion engine (1) having a common rail system wherein the rail pressure (pCR) is regulated in normal operation in that an offset of the rail pressure (pCR) is calculated and a PWM signal (PWM) is determined for activating the control process via a pressure controller based on the offset, wherein a load rejection when the rail pressure (pCR) exceeds a limit and wherein upon recognition of the load rejection, the rail pressure (pCR) is controlled in that the PWM signal (PWM) is temporarily set to a PWM value that is higher compared to normal operation via a PWM parameter. The invention is characterized in that the threshold for activation of the temporary PWM parameter is calculated in dependence on the gradient of a power-determining signal.
IPC 8 full level
F02D 41/38 (2006.01)
CPC (source: EP US)
F02D 41/3845 (2013.01 - EP US); F02D 41/3863 (2013.01 - EP US); F02D 41/123 (2013.01 - EP US); F02D 41/1479 (2013.01 - EP US); F02D 2041/141 (2013.01 - EP US); F02D 2250/04 (2013.01 - EP US)
Designated contracting state (EPC)
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 102008058721 A1 20100527; DE 102008058721 B4 20110105; CN 102245885 A 20111116; CN 102245885 B 20140827; EP 2358987 A1 20110824; EP 2358987 B1 20120919; US 2011231080 A1 20110922; US 9133786 B2 20150915; WO 2010057587 A1 20100527
DOCDB simple family (application)
DE 102008058721 A 20081124; CN 200980148029 A 20091109; EP 09749024 A 20091109; EP 2009007988 W 20091109; US 200913130824 A 20091109