Method and device for operating a hybrid vehicle

A method (110), a device (10), and a powertrain (70) are provided for the safe operation of a hybrid vehicle (20). The hybrid vehicle has at least one first (30) and one second (40) drive assembly. The drive assemblies in each case drive the hybrid vehicle, alone or jointly in a hybrid type of opera...

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Bibliographische Detailangaben
1. Verfasser:	Maigler Peter
Format:	Patent
Sprache:	eng
Schlagworte:	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 INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLETECHNOLOGY PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A method (110), a device (10), and a powertrain (70) are provided for the safe operation of a hybrid vehicle (20). The hybrid vehicle has at least one first (30) and one second (40) drive assembly. The drive assemblies in each case drive the hybrid vehicle, alone or jointly in a hybrid type of operation. The first drive assembly is operated using fuel from a fuel tank (50). An amount of fuel in this fuel tank is monitored. If the amount of fuel is smaller than a specifiable value, then a safety operation of the hybrid vehicle is activated. During the safety operation, the output of the second drive assembly is reduced if the hybrid vehicle is driven using a type of operation which negatively influences the driving dynamics of the hybrid vehicle in the case of a failure of the first drive assembly.