| 摘要 |
A closed loop control fuel injection method allows an injection amount and injection timing to be obtained, in such a way that an HRR (Heat Release Rate) is calculated from a combustion pressure signal of a combustion pressure sensor after a related pilot fuel amount is injected in a state in which an engine is warmed up, and to be adjusted according to command values, thereby removing inaccuracy of closed loop calibration and risks due to the excess of EM control caused when simply using a combustion pressure diagram, through predefined stable conditions. |
