Apparatus of controlling engine and method thereof
AssigneesHyundai Motor Company, Kia Corporation
InventorsMinjae Kim, Hee Yong Choi
Life of this patent
Estimating the term…
Abstract
An apparatus of controlling an engine includes a controller determining an inflow fuel amount adsorbed on an inner wall of a cylinder, and introduced into an oil pan based on the density of a combustion chamber and a post injection fuel amount, determining a vaporization fuel amount vaporized in the inflow fuel amount based on an operating condition of an engine, determining a consumption fuel amount consumed in the vaporization fuel amount based on the operating condition of the engine, and determining a dilution rate of the engine oil based on the inflow fuel amount, the vaporization fuel amount, and the consumption fuel amount; and a display providing an alarm to a driver when the dilution rate of the engine oil is equal to or more than a reference value.
Claims18
An apparatus for of controlling an engine, the apparatus comprising:
- a controller configured to:
- determine an inflow fuel amount adsorbed on an inner wall of a cylinder, and introduced into an oil pan based on a density of a mixture within a combustion chamber and a post injection fuel amount;
- determine a vaporization fuel amount vaporized in the inflow fuel amount based on an operating condition of the engine;
- determine a consumption fuel amount consumed in the vaporization fuel amount based on the operating condition of the engine;
- and
- determine a dilution rate of engine oil based on the inflow fuel amount, the vaporization fuel amount, and the consumption fuel amount;
- and
- a display configured to provide an alarm to a driver when the dilution rate of the engine oil is equal to or more than a reference value;
- wherein the vaporization fuel amount is mapped based on an engine speed and an engine load.
A method of controlling an engine, comprising:
- determining, by a controller, an inflow fuel amount adsorbed on an inner wall of a cylinder, and introduced into an oil pan based on a density of a mixture within a combustion chamber and a post injection fuel amount;
- determining, by the controller, a vaporization fuel amount vaporized in the inflow fuel amount based on a vaporization level of engine oil;
- determining, by the controller, a consumption fuel amount consumed in the vaporization fuel amount based on an operating condition of the engine;
- determining, by the controller, a dilution rate of the engine oil based on the inflow fuel amount, the vaporized fuel amount, and the consumed fuel amount;
- and
- providing, on a display, an alarm to a driver in response to the dilution rate of the engine oil being equal to or more than a reference value;
- wherein the vaporization fuel amount is mapped based on an engine speed and an engine load.
Dependencies are inferred from the claim text.