Process for operating spark-ignited multiple cylinder internal combustion engine involves determining theoretical torque to be released from engine, determining efficiency and linked torque change, and adjusting throttle valve

摘要

Process for operating a spark-ignited multiple cylinder internal combustion engine (1) involves determining a theoretical torque Ms to be released from the engine, determining the smallest lambda -efficiency assigned to a region between lambda max and lambda min and the linked torque change delta M, and adjusting the throttle valve (4) so that the torque change corresponding to the operation of the engine with the smallest lambda -efficiency eta l,min.