APPARATUS AND METHOD FOR CONTROLLING LOW-PRESSURE EXHAUST GAS RECIRCULATION SYSTEM FOR FREEZING PREVENTION

    公开(公告)号:US20210396195A1

    公开(公告)日:2021-12-23

    申请号:US17035323

    申请日:2020-09-28

    Inventor: Jin Ha Kim

    Abstract: An apparatus for controlling a low-pressure exhaust gas recirculation (LP-EGR) system for freezing prevention includes an intake air temperature sensor configured to measure a temperature of intake air introduced from outside, at least one engine driving sensor used to diagnose and learn a driving state of an engine, the LP-EGR system configured such that at least a portion of exhaust gas flows into the LP-EGR system as intake air, and a controller configured to perform diagnosis and learning of the driving state of the engine using the at least one engine driving sensor or to operate the LP-EGR system depending on the temperature of the intake air measured by the intake air temperature sensor when coasting conditions of a vehicle are satisfied.

    Method of controlling regeneration of PF for vehicle

    公开(公告)号:US11905866B2

    公开(公告)日:2024-02-20

    申请号:US17840466

    申请日:2022-06-14

    Inventor: Jin Ha Kim

    CPC classification number: F01N3/023 F01N11/002 F01N11/007 G07C5/04 F01N2550/04

    Abstract: A method includes calculating whether a quantity of the PMs accumulated in a PF is at or above a risk level at which damage to the PF is caused when regenerating the PF, calculating a driving condition index by accumulating a weighting factor for a driving condition under which there is a likelihood of causing the damage to the PF, when the amount of accumulated PMs is at or above the risk level; calculating a temperature index in accordance with a temperature of the PF and a PM index in accordance with the quantity of the accumulated PMs when the quantity of the accumulated PMs is at or above the risk level; calculating a degradation condition index considering the driving condition index, the temperature of the PF, and the quantity of accumulated PMs; and changing a regeneration period of the PF according to the degradation condition index.

    METHOD OF CONTROLLING REPRODUCTION OF PF FOR VEHICLE

    公开(公告)号:US20230024706A1

    公开(公告)日:2023-01-26

    申请号:US17840466

    申请日:2022-06-14

    Inventor: Jin Ha Kim

    Abstract: A method includes calculating whether a quantity of the PMs accumulated in a PF is at or above a risk level at which damage to the PF is caused when reproducing the PF, calculating a driving condition index by accumulating a weighting factor for a driving condition under which there is a likelihood of causing the damage to the PF, when the amount of accumulated PMs is at or above the risk level; calculating a temperature index in accordance with a temperature of the PF and a PM index in accordance with the quantity of the accumulated PMs when the quantity of the accumulated PMs is at or above the risk level; calculating a degradation condition index considering the driving condition index, the temperature of the PF, and the quantity of accumulated PMs; and changing a reproduction periodicity of the PF according to the degradation condition index.

    Intake air control apparatus for vehicle

    公开(公告)号:US10533527B2

    公开(公告)日:2020-01-14

    申请号:US15822674

    申请日:2017-11-27

    Abstract: An air intake control apparatus for a vehicle may include an intake passage configured such that a flow pipe for a flow of intake air is divided into first and second division passages and the first and second division passages communicate with the same combustion chamber, a variable valve provided in the first division passage to adjust an opening degree of the first division passage according to an rotation angle of a motor connected to a central shaft of the variable valve, and an operation valve provided in the second division passage to open or close the second division passage by ON/OFF control.

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