Hyundai Motor Company

Kia Motors Corporation

Seoul National University

Snu Rdb Foundation

Kyoung-Doug Min

In-Soo Jung

Seung-Hyun Lee

Yong-Joo Lee

Jun Young Yu

Jae-Min Jin

Jun-Yong Lee

Jang Heon Kim

Kyeong-Hyeon Lee

Kyoung-Chan Han

Seung-Il Lee

Kyoung-Min Lee

Seung-Mok Choi

Seung-Ha Lee

Yong-Taik Han

Young-Bok Lee

Sung Hwan Cho

A method of predicting nitrogen dioxide emission from an engine may include an initial nitrogen dioxide formation prediction operation of predicting an amount of nitrogen dioxide which is originally formed in the engine using a nitrogen dioxide formation model by an electronic control unit (ECU) while engine combustion is underway, a nitrogen dioxide reduction prediction operation of determining an amount of nitrogen dioxide which is reduced to nitrogen monoxide using a reverse reaction of the nitrogen dioxide formation model by the ECU based on the amount of formed nitrogen dioxide in the initial nitrogen dioxide formation prediction operation, and a final nitrogen dioxide emission determination operation of determining an amount of nitrogen dioxide which is ultimately generated by the engine by the ECU based on a difference between the amount of formed nitrogen dioxide and the amount of reduced nitrogen dioxide.

Method of predicting nitrogen dioxide emission from engine

A method for controlling engine combustion may include receiving a signal of a crank position sensor, determining an angular velocity and an angular acceleration of a crank on the basis of the signal of the crank position sensor, determining a combustion characteristic index for each cylinder using the angular velocity and the angular acceleration of the crank, judging an unstable combustion cylinder using the combustion characteristic index for each cylinder, and changing a combustion factor for controlling the unstable combustion cylinder.

Method for controlling engine combustion for reducing irregular vibration caused by unstable engine combustion

A combustion system for a vehicle may include a piston in which a first combustion recess is formed in an upper end surface thereof, and at least one second combustion recess is further formed at the bottom of the first combustion recess, a first intake port and a second intake port for supplying a cylinder with air, and a controller that differently controls amounts of recirculation exhaust gas being supplied to the first intake port and the second intake port.

Combustion system for vehicle

Growing community of inventors

Seoul, South Korea

Kyoung-Doug Min