| 摘要 |
The invention relates to internal combustion engines in which there are residual burned gases (RBG) and in which a recirculation of the exhaust gases (REG) is provided, as well as engines in which the gas mixture is lean in petrol or alternatively in the case of diesel engines. A numerical value Cg, representative of the mean gas torque by combustion and supplied by a system which is not shown, is corrected as a function of the total rate q of recirculation of exhaust gases, and of the presence of residual burned gases, the said correction device comprising calculation means (56) for producing a correction factor Q2 = (1-p2.q), where p2 is a constant close to 0.50, and q, the value of the said total rate, and then applying this factor Q2 to the value Cg, if necessary previously corrected as a function of the richness r of the gas mixture when r < 1, in order to provide a corrected numerical value (Cg)q or (Cg)r,q. Other devices are provided for correcting Cg in the case of oxidant excess and in the case of diesel engines. The invention permits, in particular, optimised adjustments and the detection of combustion misfiring in engines of private or industrial vehicles. <IMAGE>
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