| 摘要 |
Disclosed is a method of controlling an internal combustion engine. The method estimates a heat release due to combustion of a quantity of fuel injected in a cylinder of the engine by a fuel injector in an injection pulse. The estimation provides for calculating a heat release rate as a function of a derivative of the energy of the fuel injected quantity. The derivative of the energy of the fuel injected is calculated according to an expression which includes an index representing a delay between the time at which a certain portion of the fuel is injected and the time at which it actually burns. The heat release rate is then integrated in order to estimate the total heat release of the injection pulse and the fuel injection amount and timing are controlled accordingly.
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