EP 1210514 A1 20020605 - METHOD FOR CONTROLLING FUEL INJECTION VALVES
Title (en)
METHOD FOR CONTROLLING FUEL INJECTION VALVES
Title (de)
VERFAHREN ZUM STEUERN VON KRAFTSTOFFEINSPRITZVENTILEN
Title (fr)
PROCEDE PERMETTANT DE COMMANDER DES SOUPAPES D'INJECTION DE CARBURANT
Publication
Application
Priority
- DE 0002671 W 20000810
- DE 19939449 A 19990820
Abstract (en)
[origin: DE19939449A1] The invention relates to a method for controlling fuel injection valves, particularly for use in diesel internal combustion engines. The device used for carrying out the method has fuel injection valves (10) that are supplied with fuel by a high pressure fuel accumulator (24). Each fuel injection valve (10) has a needle-shaped injection valve mechanism (15) which is coupled with a control chamber (35), said control chamber being connected to the high pressure fuel accumulator by a supply throttle (36). The control chamber (35) is able to drain into a draining container (39) by means of a valve mechanism (44) that is actuated by a piezo actuator (57). According to the invention, the characteristic of the leading edge (a) of the stroke course (h) of the injection valve mechanism (15) is regulated by controlling the piezo actuator (57). A closed regulating circuit is formed with a stroke sensor (26) and a control device (58). The inventive method enables e.g. temperature-related leakage on a hydraulic transmission mechanism (53) to be compensated.
IPC 1-7
IPC 8 full level
F02M 47/00 (2006.01); F02D 41/20 (2006.01); F02M 47/02 (2006.01); F02M 51/06 (2006.01); F02M 59/46 (2006.01); F02M 63/00 (2006.01)
CPC (source: EP)
F02M 47/027 (2013.01); F02M 63/0026 (2013.01); F02D 41/2096 (2013.01); F02M 2200/24 (2013.01); F02M 2200/703 (2013.01)
Citation (search report)
See references of WO 0114714A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
DE 19939449 A1 20010301; EP 1210514 A1 20020605; JP 2003507640 A 20030225; WO 0114714 A1 20010301
DOCDB simple family (application)
DE 19939449 A 19990820; DE 0002671 W 20000810; EP 00962211 A 20000810; JP 2001518563 A 20000810