Device of predicting pressure of diesel engine and pressure predicting method using the same
AssigneesHyundai Motor Company, Seoul National University R&Db Foundation
InventorsKyoungchan HAN, Jun Yu, Kyoung Min Lee, Kyoungdoug Min, Seungha Lee, Youngbok Lee
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Abstract
A method of predicting a cylinder pressure of a diesel engine by a pressure predicting device may include predicting a pilot injection combustion pressure by pilot injection; predicting main combustion duration of main injection; and predicting a main injection combustion pressure after the main injection by using the pilot injection combustion pressure and the main combustion duration.
Claims17
A method of predicting a cylinder pressure of a diesel engine by a pressure predicting device, the method comprising:
- predicting a pilot injection combustion pressure by pilot injection;
- predicting main combustion duration of main injection;
- and
- predicting a main injection combustion pressure after the main injection by using the pilot injection combustion pressure and the main combustion duration.
A device of predicting a pressure of a diesel engine comprising:
- a driving variable collecting device collecting engine driving variables of the diesel engine;
- a pressure predicting device predicting a pressure before pilot injection by using the engine driving variables and predicting a pilot injection combustion pressure by pilot injection and a main injection combustion pressure by main injection;
- and
- a control device controlling the main injection combustion pressure after the main injection to be predicted by predicting main combustion duration of the main injection.
Dependencies are inferred from the claim text.