Self-propelled working machine and method for braking a working machine of this type

The invention relates to a self-propelled working machine, preferably in the form of a dumper truck or truck, having an electric drive comprising at least one electric motor (4), a generator (5) driven by a combustion engine (6) for supplying power to the electric drive, and a braking device (4, 11)...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	Sommer, Bernd, Merkle, Markus, Duelli, Stefan, Hoffmann, Sebastien Nicolas, Richthammer, Burkhard Emanuel, Resch, Jurgen
Format:	Patent
Sprache:	eng
Schlagworte:	ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES AUXILIARY DRIVES FOR VEHICLES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL INSTRUMENTATION OR DASHBOARDS FOR VEHICLES MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	The invention relates to a self-propelled working machine, preferably in the form of a dumper truck or truck, having an electric drive comprising at least one electric motor (4), a generator (5) driven by a combustion engine (6) for supplying power to the electric drive, and a braking device (4, 11) for braking the working machine. Said braking device provides power-generating braking via the electric drive (4) and a feed-back of electrical engine braking power of the electric motor (4) to the generator (5), in order to support the engine braking power provided by the combustion engine (6). The invention also relates to a method for braking a working machine of this type. According to the invention, a braking control device is provided to automatically engage a mechanical brake (11) in accordance with the engine braking power fed back to the combustion engine and/or in accordance with the operating state of the combustion engine supplied with fed-back engine braking power.