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    Method of predicting nitrogen dioxide emission from engine
    3.
    发明授权
    Method of predicting nitrogen dioxide emission from engine 有权

    公开(公告)号：US10989701B2

    公开(公告)日：2021-04-27

    申请号：US16020633

    申请日：2018-06-27

    申请人： Hyundai Motor Company ,  Kia Motors Corporation ,  Seoul National University R&DB Foundation

    发明人： Kyoung-Chan Han ,  Jun-Yong Lee ,  Jun Yu ,  Kyoung-Min Lee ,  Kyoung-Doug Min ,  Seung-Ha Lee ,  Young-Bok Lee

    IPC分类号： G01N33/00 ,  G01M15/10 ,  G07C5/08

    摘要： 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 for controlling variable valve lift apparatus and variable valve lift system
    6.
    发明授权
    Method for controlling variable valve lift apparatus and variable valve lift system 有权
    用于控制可变气门提升装置和可变气门升程系统的方法

    公开(公告)号：US09447738B2

    公开(公告)日：2016-09-20

    申请号：US14144357

    申请日：2013-12-30

    申请人： Hyundai Motor Company

    发明人： Jang Su Lee ,  Jun Yu ,  Keun Sang Kim ,  Hyeungwoo Lee

    IPC分类号： F02D41/30 ,  F02D13/02 ,  F02D41/00 ,  F01L1/34

    CPC分类号： F02D13/0207 ,  F01L1/34 ,  F02D41/0002 ,  F02D41/30 ,  F02D2041/001 ,  F02D2200/023 ,  Y02T10/18 ,  Y02T10/42

    摘要： A method for controlling a variable valve lift apparatus includes: measuring an operation mode switching condition; determining whether the variable valve lift apparatus is in a normal operation condition; controlling the operation of the variable valve lift apparatus depending on a predetermined normal valve lift switching map; determining whether the variable valve lift apparatus is in a mode switching delay or switching disable condition from a high lift mode to a low lift mode or whether the variable valve lift apparatus is in the mode switching delay or switching disable condition from the low lift mode to the high lift mode; controlling the operation of the variable valve lift apparatus depending on a predetermined low oil temperature valve lift switching map; and controlling the operation of the variable valve lift apparatus depending on a predetermined high oil temperature valve lift switching map.

    摘要翻译： 一种用于控制可变气门提升装置的方法包括：测量操作模式切换条件; 确定可变气门提升装置是否处于正常操作状态; 根据预定的正常阀提升切换图控制可变气门提升装置的操作; 确定可变气门提升装置是否处于从高提升模式到低提升模式的模式切换延迟或切换禁用状态，或者可变气门提升装置是否处于从低升力模式到模式切换延迟或切换禁用状态 高升力模式; 根据预定的低油温阀升程切换图控制可变气门提升装置的操作; 以及根据预定的高油温阀提升切换图来控制可变气门提升装置的操作。