| 摘要 |
In an exhaust gas control apparatus, a period of time from after there is filter regeneration command and filter regeneration starts until the filter regeneration has been completed, and which is a period of time during which filter regeneration is not prohibited, is determined to be a period of time during which the filter is in a filter regeneration incomplete state. While the filter is in a filter regeneration incomplete state, a particulate matter (PM) accumulated amount is estimated based on the engine operating state and a process for estimating the PM amount based on differential pressure is prevented from being selected. |
