| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a method for controlling regeneration of a DPF system to optimize the time for pre-heating, and start feed of oxygen at an excellent timing, and effect regeneration of a filter with high efficiency as a melt loss of the filter is prevented from incurring. SOLUTION: In a method for controlling regeneration of a DPF system 1 to purify exhaust gas G as a filter 20 to collect PM in exhaust gas G and a filter 20 to regenerate are switched, during regeneration, preheating is effected by energization to a heating heater 21 of the filter 20 before a feed of oxygen to the regeneration filter 20 is started. When a power corresponding amount E corresponding to an amount of a power fed to the heating heater during the preheating exceeds a given decision value E0, feed of oxygen is started.</p> |
