Method for switching from a sail or freewheel mode of a motor vehicle to an overrun cut-off mode

The invention relates to a method and a device for switching from a sail or freewheel mode of a motor vehicle, comprising an internal combustion engine and an automatic clutch which is opened during the sail or freewheel mode, to an overrun cut-off mode in which the clutch is closed, wherein, prior...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	ALPMAN ERIK, BUSCH RAINER, CHRISTEN URS, OLDKNOW IAN
Format:	Patent
Sprache:	eng
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a method and a device for switching from a sail or freewheel mode of a motor vehicle, comprising an internal combustion engine and an automatic clutch which is opened during the sail or freewheel mode, to an overrun cut-off mode in which the clutch is closed, wherein, prior to the clutch being closed, the internal combustion engine is set to a speed at which closing of the clutch induces no or minor changes in torque in the drive train, and, after closing the clutch, fuel supply to the internal combustion engine is reduced. According to the invention, under one or a plurality of pre-determined conditions, the drag torque of the internal combustion engine that affects the motor vehicle increases so slowly during the switch from sail or freewheel mode to overrun cut-off mode that the switch is not usually noticed by the driver.