Drive control device for a hybrid vehicle

A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted...

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Bibliographische Detailangaben
1. Verfasser:	NAKAJIMA NORITAKA
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 CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES CONTROLLING COMBUSTION ENGINES ELECTRIC EQUIPMENT OR PROPULSION OF ELECTRICALLY-PROPELLEDVEHICLES ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES, IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS 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 TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A drive control device for a hybrid vehicle is provided with a differential device including four rotary elements; and an engine, first and second electric motors and an output rotary member which are respectively connected to the four rotary elements. One of the four rotary elements is constituted by a rotary component of a first differential mechanism and a rotary component of a second differential mechanism selectively connected through a clutch, and one of the rotary components is selectively fixed to a stationary member through a brake. The drive control device comprises a mode selecting operation device selecting an acceleration drive mode oriented to vehicle acceleration and a fuel efficiency drive mode oriented to fuel efficiency. When the acceleration drive mode is selected at the start of the vehicle, the vehicle starts in motor running or engine running in which a drive force is generated by operating the first electric motor and the second electric motor while when the fuel efficiency drive mode associated with a requirement for fuel efficiency is selected, the vehicle starts in motor running or engine running in which a drive force is generated by operating the first electric motor or the second electric motor. The drive control device has a first motor drive mode in which the second electric motor is used for running with the brake placed in an engaged state; a first engine drive mode in which the first electric motor is caused to generate a reaction torque while the second electric motor is caused to generate a drive force with the brake placed in an engaged state; a second motor drive mode in which the first electric motor and the second electric motor are used for running with the brake and the clutch placed in an engaged state; and a second engine drive mode in which the first electric motor and the second electric motor are caused to generate a reaction torque with the clutch placed in an engaged state. When the fuel efficiency drive mode is selected and the motor running is requested, the first motor drive mode is selected. When the fuel efficiency drive mode is selected and the engine running is requested, the first engine drive mode is selected. When the acceleration drive mode is selected and the motor running is requested, the second motor drive mode is selected. When the acceleration drive mode is selected and the engine running is requested, the second engine drive mode is selected.