EXHAUST GAS CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE
An exhaust gas control system for an internal combustion engine, before execution of a filter regeneration process, executes a pre-regeneration process that is a process of raising a temperature of a filter to a second target temperature lower than a first target temperature and increasing the conce...
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Main Authors | , , , , |
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Format | Patent |
Language | English French German |
Published |
07.08.2019
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Subjects | |
Online Access | Get full text |
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Summary: | An exhaust gas control system for an internal combustion engine, before execution of a filter regeneration process, executes a pre-regeneration process that is a process of raising a temperature of a filter to a second target temperature lower than a first target temperature and increasing the concentration of NO 2 contained in exhaust gas flowing into the filter for a predetermined period. The first target temperature during execution of the filter regeneration process in the case where a speed of change in a detected value of a differential pressure sensor during execution of the pre-regeneration process is high is set so as to be lower than the first target temperature in the case where the speed of change is low. |
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Bibliography: | Application Number: EP20170152673 |