A CONTROL METHOD FOR AN INTERNAL COMBUSTION ENGINE BASED ON FUEL PROPERTIES, AND AN ENGINE SYSTEM WITH FUEL PROPERTIES ANALYSIS

摘要

The disclosure relates to a control method for an internal combustion engine capable of using gaseous fuel as main fuel (1), based on fuel properties. An analysing unit (2) for analysing fuel properties of gaseous fuel is provided comprising a rapid compression machine (2a) in fluid communication with a fuel delivery line (4; 4a) of the internal combustion engine (1) for receiving at least gaseous fuel to be analysed. Said fuel is compressed within a compression chamber (2b) of the analysing unit so as to induce said fuel to auto-ignite and combust with air. Pressure data being indicative of fuel properties is obtained of this combustion, and information indicative of fuel properties is transmitted to the control device, which controls engine control parameters at least based on said information indicative of fuel properties. A respective engine system is also concerned.