FIELD: internal combustion engines.
SUBSTANCE: invention can be used in fuel supply systems of internal combustion engines (ICE). Various methods for determining the fuel injector operation characteristics are proposed. According to one embodiment, the method of determining the fuel injector operation characteristic comprises determining fuel supply error of one fuel injector of two or more fuel nozzles arranged on the first fuel rail, by comparing the total amount of fuel on each of the plurality of injection commands for said one injector with the amount of fuel pumped into the first fuel rail, wherein said amount of fuel is determined in advance.
EFFECT: invention allows to obtain individual characteristics of operation of fuel injectors, to increase accuracy of fuel dosing and to compensate for fuel supply errors.
20 cl, 6 dwg
