CONTROL DEVICE FOR VEHICLE DRIVING DEVICE

• Main Authors: OKUDA KOICHI, IMAI KEITA, IMAMURA TATSUYA, TABATA ATSUSHI, KUMAZAKI KENTA, KATO SHUNYA, MATSUBARA TOORU, HIASA YASUHIRO
• Format: Patent
• Language: English; French; Japanese
• Published: 31.05.2012
• Subjects: 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; CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION; 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; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HEATING; INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLETECHNOLOGY; 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; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THERMAL INSULATION IN GENERAL; TRANSPORTING; VEHICLES IN GENERAL; WEAPONS

Provided is a control device for a vehicle driving device, which can improve the fuel efficiency of a vehicle by controlling the operating point of an engine by adjusting the torque of a motor. A first motor (MG1), a second motor (MG2), and a torque converter (16), as a whole, constitute a stepless transmission (60), and an engine operating point control means (70) performs engine operating point control for controlling the operating point of an engine (12) by adjusting first motor torque (TMG1) during engine traveling. Accordingly, a stepless speed change operation of the stepless transmission (60) can be performed by adjusting the first motor torque (TMG1) (basically regenerative torque), and the operating point of the engine (12) can be controlled without being restricted by a turbine rotation speed (Nt) by the stepless speed change operation of the stepless transmission (60), for example, thereby making it possible to drive the engine (12) at an operating point most suitable for improving the fuel efficiency, and improve the fuel efficiency of the vehicle. L'invention porte sur un dispositif de commande pour un dispositif de propulsion de véhicule qui peut améliorer le rendement en carburant d'un véhicule en réglant le point de travail d'un moteur par ajustement du couple d'un moteur. Un premier moteur électrique (MG1), un second moteur électrique (MG2) et un convertisseur de couple (16) constituent ensemble constituent une transmission sans palier (60), et un moyen de réglage du point de travail du moteur thermique (70) exécute un réglage du point de travail du moteur thermique pour ajuster le point de travail d'un moteur thermique (12) en ajustant un premier couple de moteur électrique (TMG1) pendant la marche du moteur thermique. De cette façon, une opération de changement de vitesse sans palier de la transmission sans palier (60) peut être exécutée par ajustement du couple du premier moteur électrique (TMG1) (couple essentiellement de récupération), et le point de travail du moteur thermique (12) peut être réglé sans être limité par une vitesse de rotation de turbine (Nt) par l'opération de changement de vitesse sans palier de la transmission sans palier (60), par exemple, en apportant ainsi la possibilité de faire travailler le moteur thermique (12) à un point de travail le plus approprié pour améliorer le rendement en carburant et pour améliorer le rendement en carburant du véhicule.