FAIL-SAFE CONTROL DEVICE OF HYBRID SYSTEM

PROBLEM TO BE SOLVED: To provide a fail-safe control device of a hybrid system that enables one or two of an engine, a first motor generator and a second motor generator working as drive sources to establish limp home when an output abnormality occurs. SOLUTION: The hybrid system comprises a Ravigne...

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Bibliographische Detailangaben
Hauptverfasser:	MINAGAWA YUSUKE, YATABE KAZUO
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 BLASTING 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 ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING INSTRUMENTATION OR DASHBOARDS FOR VEHICLES LIGHTING MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES MECHANICAL ENGINEERING PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT THERMAL INSULATION IN GENERAL TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a fail-safe control device of a hybrid system that enables one or two of an engine, a first motor generator and a second motor generator working as drive sources to establish limp home when an output abnormality occurs. SOLUTION: The hybrid system comprises a Ravigneaux compound planetary gear row 3 formed by coupling the first motor generator MG1, the engine 1, an output gear 4 and the second motor generator MG2 in order of their rotational speeds. The hybrid system also comprises a drive-source abnormality detection means that detects the output abnormalities of the engine 1, the first motor generator MG1, and the second motor generator MG2 that are the drive sources; and a drive-source fail-safe control means that brakes either of a high brake 16 or a low brake 17 when determined that one or two of the drive sources has the abnormalities, and enables traveling by using at least one drive source in which the output abnormality does not occur. COPYRIGHT: (C)2004,JPO