EP 1068436 A1 20010117 - METHOD FOR EQUALISING THE CYLINDERS OF A DIRECT INJECTION INTERNAL COMBUSTION ENGINE
Title (en)
METHOD FOR EQUALISING THE CYLINDERS OF A DIRECT INJECTION INTERNAL COMBUSTION ENGINE
Title (de)
VERFAHREN ZUR ZYLINDERGLEICHSTELLUNG BEI EINER MIT DIREKTEINSPRITZUNG ARBEITENDEN BRENNKRAFTMASCHINE
Title (fr)
PROCEDE DE MISE AU MEME NIVEAU DES CYLINDRES D'UN MOTEUR A COMBUSTION INTERNE A INJECTION DIRECTE
Publication
Application
Priority
- DE 9900654 W 19990310
- DE 19814155 A 19980330
Abstract (en)
[origin: DE19814155A1] The r.p.m. values of the crankshaft are corrected by means of an acausal mean value filter. Modification of the kinetic energy of the crankshaft in the expansion interval of a cylinder is calculated on the basis of the dynamically corrected r.p.m. values and applied to the maximum amount of fuel which can be supplied during this interval. The non-uniform residue thus obtained indicates whether too much or too little fuel has been injected for the cylinder in question. The calculated residues are used to derive the correction terms for the injection times of the individual cylinders. This enables an entire range of characteristics to be adapted, especially with respect to changing speeds.
IPC 1-7
IPC 8 full level
F02D 41/14 (2006.01)
CPC (source: EP US)
F02D 41/1498 (2013.01 - EP US); F02D 2200/1015 (2013.01 - EP US)
Citation (search report)
See references of WO 9950547A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
DE 19814155 A1 19991014; DE 59900863 D1 20020321; EP 1068436 A1 20010117; EP 1068436 B1 20020213; US 6302083 B1 20011016; WO 9950547 A1 19991007
DOCDB simple family (application)
DE 19814155 A 19980330; DE 59900863 T 19990310; DE 9900654 W 19990310; EP 99913112 A 19990310; US 67756200 A 20001002