| 摘要 |
The invention proposes a method for torque monitoring in the case of Otto engines in motor vehicles, in which a reference torque value (M0) is derived from the speed (n) of the Otto engine and the air mass (L) supplied and, in homogeneous lean operation (lambda=1 to 1.4), this reference torque value (M0) is corrected by a signal derived from a signal (lambdist) from a lambda probe and is then compared with a torque value (Mmax) specified by the driver. Torque-reducing interventions in the control of the engine are performed if the corrected reference torque value (M0) exceeds the torque value (Mmax) specified by the driver by a specifiable factor or value. This method allows reliable and accurate torque monitoring, even at lambda values greater than 1.
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