Lambda regulation method for use in internal combustion engine of motor vehicle, involves determining lambda deviation from rear sensor produced by rear lambda sensor and adapting conversion rule under consideration of determined deviation

摘要

The method involves determining a lambda value (25) with the aid of a front sensor signal (21) and a conversion rule (23), where the front sensor signal is produced by a front lambda sensor (17). A lambda deviation is determined from a rear sensor signal (29) that is produced by a rear lambda sensor (19). The conversion rule is adapted with the aid of and/or under the consideration of the determined lambda deviation. A lambda modulation is regulated and/or adjusted with the aid of an engine control unit (7) of an internal combustion engine (1).