MODE CHANGEOVER CONTROL DEVICE OF HYBRID TRANSMISSION

PROBLEM TO BE SOLVED: To avoid increasing in size of a hybrid transmission by preventing the request of large torque to one motor/generator at the time of mode changeover from low to high. SOLUTION: When mode changeover is performed from low mode to high mode at a synchronous point where both the mo...

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Bibliographische Detailangaben
Hauptverfasser:	OSHITARI SHUNICHI, 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 avoid increasing in size of a hybrid transmission by preventing the request of large torque to one motor/generator at the time of mode changeover from low to high. SOLUTION: When mode changeover is performed from low mode to high mode at a synchronous point where both the motor/generator passing powers in the low mode and in the high mode are 0, the torque sharing of the motor/generator MG2 is larger than that of the motor/generator MG1, and the inner peripheral motor/generator MG2 is increased in size, thereby causing the increase in size of the hybrid transmission, together with excessive torque capacity of the motor/generator MG1. However, by performing mode changeover at a speed ratio "i" on the high side from the synchronous point, the required torque Tmg2 of the motor/generator MG2 is reduced by ΔTmg2, thereby enabling the reduction in size of the motor/generator MG2, and, therefore, the reduction in size of the hybrid transmission. COPYRIGHT: (C)2005,JPO&NCIPI