| 摘要 |
In a method for reducing NO x in the exhaust gas of an internal combustion engine that is always operated at a lean fuel/air ratio of .lambda. > 1 and has a motor control device for controlling .lambda., t he .lambda. value is slidingly controlled as a function of an average mass temperature in the combustion chamber of the internal combustion engine, wherein for a low average mass temperature .lambda. is decreased and for a high average mass temperature A is increased such that the internal combustion engine is operated in any operational state close to the misfiring limit.
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