EP 1873382 A2 20080102 - Control device of high-pressure fuel pump of internal combustion engine
Title (en)
Control device of high-pressure fuel pump of internal combustion engine
Title (de)
Steuervorrichtung für Hochdruckkraftstoffpumpe von Verbrennungsmotor
Title (fr)
Dispositif de commande de pompe à carburant haute pression de moteur à combustion interne
Publication
Application
Priority
EP 02741215 A 20020620
Abstract (en)
The invention relates to a control device of a high-pressure fuel pump (1) of an internal combustion engine (507) capable of improving stability in controlling the drive of the high-pressure fuel pump (1) by limiting the end timing of a drive signal of the high-pressure fuel pump (1) and driving an actuator (200) in a control effective range of the high-pressure fuel pump (1). The control device of the high-pressure fuel pump (1) of the internal combustion engine (507) has a fuel injection valve (54) provided on a cylinder (507b) and the high-pressure fuel pump (1) for pumping fuel to the fuel injection valve (54), wherein the high-pressure fuel pump (1) comprises a pressure chamber (12), a plunger (2) for pressurizing the fuel in the pressure chamber (12), a fuel valve (5) provided in the pressure chamber (12), and the actuator (200) for operating the fuel valve (5). The control device has means for calculating the drive signal of the actuator (200) so as to realize the variable discharge of the high-pressure fuel pump (1). The means for calculating the drive signal has means for limiting the end timing of the drive signal of the actuator (200) to a predetermined phase and/or means for limiting the output timing of the drive signal of the actuator (200) to be within a predetermined phase range.
IPC 8 full level
F02D 41/38 (2006.01); F02M 59/20 (2006.01); F02M 59/36 (2006.01); F02M 63/02 (2006.01); F04B 49/24 (2006.01)
CPC (source: EP)
F02D 41/3845 (2013.01); F02M 59/366 (2013.01); F04B 49/243 (2013.01); F02D 41/1401 (2013.01); F02D 2041/141 (2013.01); F02D 2250/31 (2013.01); F02M 63/0225 (2013.01)
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1873382 A2 20080102; EP 1873382 A3 20080123; EP 1873382 B1 20100526; DE 60236558 D1 20100708
DOCDB simple family (application)
EP 07020427 A 20020620; DE 60236558 T 20020620