专利内容由知识产权出版社提供
专利名称：Method of controlling injection of an
internal combustion engine as a function offuel quality
发明人：Mauro, Marco,Bolla, Ugo,Pastorelli,
Francesco,Santamaria, Nelson,Ciasullo,Marco
申请号：EP99121413.1申请日：19991027公开号：EP0997628A3公开日：20001108
专利附图：
摘要：A method of controlling injection of an engine (1) having an oxygenconcentration sensor (10) generating a composition signal (S) correlated to the
composition of the exhaust gases, and a number of injectors (12) for injecting fuel for anoperating injection time (TJO) in each operating state of the engine (1), and each of which
is assigned, in each operating state of the engine (1), a respective calibration injectiontime (TJC) determined at an initial engine calibration stage using a reference fuel. In agiven operating state of the engine, the control method including the steps of:
determining a number of operating values (KP) of a control parameter (KO2) as a functionof the composition signal (S) and of a proportional-integral control function; determiningan intermediate value (KM) of the control parameter (KO2) as a function of theaforementioned operating values (KP) of the control parameter (KO2); determining acurrent correction injection time (TJFC) as a function of the intermediate value (KM) of thecontrol parameter (KO2), and of a reference value (KR) of the control parameter (KO2)determined at the initial engine calibration stage using the reference fuel and relative tothe operating state of the engine (1); and determining an operating injection time (TJO)as a function of a calibration injection time (TJC) relative to the operating state of theengine (1), of a closed-loop injection time (TJS) depending on the control parameter(KO2), and of the current correction injection time (TJFC).
申请人：C.R.F. Società Consortile per Azioni
地址：Strada Torino, 50 10043 Orbassano (TO) IT
国籍：IT
代理机构：Jorio, Paolo
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