| 摘要 |
<p>Provided is an exhaust gas purification system with which the frequency of DPF regeneration requests can be reduced during LLIR, thereby improving convenience. In an exhaust gas purification system 1 including a control unit 40 that performs regeneration control on a diesel particulate filter 12b provided to an exhaust pipe 11 of an engine 10, the control unit 40 includes PM accumulation amount predicting means for predicting the amount of PM accumulated by calculating a cumulated value of the PM in an idling state. The control unit 40 starts calculating the cumulated value of the PM by the PM accumulation amount predicting means after a first predetermined time has elapsed since the detection of the idling state.</p> |
