| 摘要 |
Provided is a diesel engine which can efficiently regenerate a diesel particulate filter in accordance with the state of an operation. The control for regeneration using an ECU in the diesel engine is comprised of first regeneration wherein particulate matter is removed by means of burning at slightly more than 300°C for 20 min when the accumulation of particulate matter exceeds a first threshold value; second regeneration wherein particulate matter is burned at approximately 560°C for 30 min by an additional injection to completely remove particulate matter other than ash when the accumulation of particulate matter exceeds the first threshold value for a first predetermined period of time, or every 100 h; and third regeneration wherein particulate matter is burned at approximately 600°C for 15 min by an additional injection to completely remove particulate matter other than ash when the accumulation of particulate matter exceeds a second threshold value and an emergency regeneration starting switch is pushed, or when 50 h have elapsed after previous implementation of second regeneration or third regeneration and the emergency regeneration starting switch is pushed. |
