Control system for hybrid vehicle

A control system for hybrid vehicles that ensures high motor power while limiting damage on a planetary gear unit is provided. In a planetary gear unit, a sun gear is connected to a first motor, a ring gear is connected to a second motor, and a carrier is connected to an engine. An operating mode of...

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Bibliographische Detailangaben
1. Verfasser:	Nishimine Akiko
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:	A control system for hybrid vehicles that ensures high motor power while limiting damage on a planetary gear unit is provided. In a planetary gear unit, a sun gear is connected to a first motor, a ring gear is connected to a second motor, and a carrier is connected to an engine. An operating mode of the hybrid vehicle can be selected from a hybrid mode, a single-motor mode, and a dual-motor mode. The control system is configured to shift the operating mode to the hybrid mode if an estimated temperature of the pinion gear is higher than a threshold temperature, and to the single-motor mode if the estimated temperature of the pinion gear is lower than a threshold temperature.