Method for controlling engine combustion noise feedback
AssigneeHyundai Motor Company
InventorIn-Soo JUNG
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Abstract
A method for engine combustion noise feedback control includes calculating an engine combustion noise target value by a controller. A cylinder pressure is measured after combustion of fuel according to a main injection timing and an amount of pilot fuel based on the calculated engine combustion noise target value. A combustion noise index (CNI) is calculated by converting the measured cylinder pressure into a cylinder pressure level. The feedback pilot injection is controlled in which the CNI is applied to injection variable control while controlling the main injection timing and the amount of pilot fuel.
Claims11
A method for controlling engine combustion noise feedback, comprising steps of:
- calculating an engine combustion noise target value by a controller;
- measuring a cylinder pressure after combustion of fuel according to a main injection timing and an amount of pilot fuel based on the calculated engine combustion noise target value;
- calculating a combustion noise index (CNI) by converting the measured cylinder pressure into a cylinder pressure level;
- and
- controlling feedback pilot injection in which the CNI is applied to injection variable control while controlling the main injection timing and the amount of pilot fuel.
Dependencies are inferred from the claim text.