| 摘要 |
The invention relates to a method for operating a particulate trap (1), which is in particular of the open type, in the exhaust gas system (2) of an internal combustion engine (3). Said method comprises at least the following steps: a) determination of a first time (t1) for the particulate trap (1), at which the latter (1) falls below a first efficiency threshold value (E1); b) increase in the efficiency of the particulate trap (1) by adjusting at least one specific operating parameter (B) of the internal combustion engine (3), the exhaust gas generated by the internal combustion engine (3) in the vicinity of the particulate trap (1) not exceeding a temperature of 500 ‹C; c) determination of a second time (t2) for the particulate trap (1), at which the latter (1) exceeds a second efficiency threshold value (E2); and d) activation of a normal operating mode for the internal combustion engine (3). Said method and device guarantee an operation of an exhaust gas system of an internal combustion engine that economises on fuel and reduces wear on materials and at the same time ensure a high degree of efficiency for the particulate trap that is integrated into said exhaust gas system. ® KIPO & WIPO 2008
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