VORRICHTUNG UND VERFAHREN ZUM BETREIBEN EINER BRENNKRAFTMASCHINE MIT DROSSELKLAPPE IM SCHUBBETRIEB

摘要

A method for operating an internal combustion engine of a motor vehicle with a butterfly valve, where the butterfly valve is opened and a fuel supply is cut off when the vehicle is in an overrun phase, the method including the steps of determining a first value of a position of the butterfly valve during the overrun phase as a function of a vehicle speed and an engine rpm value at a beginning of the overrun phase, adjusting the butterfly valve to the first value during the overrun phase; and adjusting the butterfly valve to a second value, which is calculated as a function of the vehicle speed and the engine rpm's, instead of to a value based on a gas pedal position for a certain predetermined time after an end of the overrun phase.