Method for operating an internal combustion engine of a motor vehicle in overrun with low emissions and low fuel consumption

摘要

The present invention relates to a method for reducing fuel consumption of an internal combustion engine (1) of a motor vehicle, wherein the internal combustion engine (1) comprises an injection device (6) and an exhaust line (8) assigned to the internal combustion engine (1) comprises a catalytic converter (3). In the exhaust line (8) at least one lambda probe (4, 5) is arranged, with which a lambda control is performed on a required air / fuel mixture. During a coasting phase of the internal combustion engine (1), a signal of the at least one lambda probe (4, 5) is evaluated.