A combustion control method and system for a marine methanol engine

Abstract

The present invention relates to a combustion control method and system for a marine methanol engine. The present invention comprises obtaining the released heat of the corresponding heater in each cylinder, and the methanol injection amount injected by the corresponding methanol injector, and obtaining the initial temperature of the methanol before entering the methanol injector; obtaining the total intake air volume and intake air temperature of the marine methanol engine air; determining the heating heat required for heating the methanol mixed gas in each cylinder to the autoignition point based on the methanol injection amount, the total intake air volume, the intake air temperature and the initial temperature; controlling the heating power of each heater through a transformer; in response to the released heat being greater than or equal to the heating heat, keeping the heating power of the current heater unchanged; in response to the released heat being less than the heating heat, increasing the heating power of the heater until the released heat is greater than or equal to the heating heat. The present invention solves the problem of difficulty in starting and burning a marine methanol engine.

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