Internal combustion engine e.g. petrol engine, operating method for motor vehicle, involves selecting valve timings of inlet and outlet valves and computing exhaust gas flow during valve overlapping in respective cylinder

摘要

The method involves providing an inlet valve and an outlet valve for cylinders and selecting valve timings of the inlet valve and outlet valve of respective cylinders. The inlet valve and the outlet valve comprise opening phases that are overlapped at a predetermined period of duty cycle of an internal combustion engine. Exhaust gas flow is computed during valve overlapping in the respective cylinder of the internal combustion engine.