| 摘要 |
A method for controlling temperature of a gas post-treatment system in an exhaust circuit of a thermal engine having a more or less rich combustion mode, in which at least a post-treatment member is periodically submitted to regeneration phase at a set-point temperature. The duration of each regeneration phase is divided into a series of fractioned periods for tuning the engine alternatively according to two combustion modes each having a different richness, respectively a mode hotter than necessary for reaching the set-point temperature and a mode that is not so hot, the duration of each period being controlled so that excess energy introduced during a hotter mode period is compensated by the lack of energy in the following period with the less hot mode, and conversely, to maintain at the output of the post-treatment member a mean temperature corresponding to the set-point temperature. |
