Coast stop method and device

A coast stop vehicle includes a variator (20) which continuously changes a speed ratio by changing a winding diameter of a belt (23) mounted on pulleys (21,22), a sub-transmission mechanism (30) connected in series with the variator (20) and shifting discrete gear positions by changing engaged state...

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Bibliographische Detailangaben
Hauptverfasser:	Yamada, Naohiro, Watanabe, Shinichiro, Aoyama, Noritaka, Tatewaki, Keichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS PERFORMING OPERATIONS ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TOTHE CONTROL OF A PARTICULAR SUB-UNIT TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TRANSPORTING VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	A coast stop vehicle includes a variator (20) which continuously changes a speed ratio by changing a winding diameter of a belt (23) mounted on pulleys (21,22), a sub-transmission mechanism (30) connected in series with the variator (20) and shifting discrete gear positions by changing engaged states of a plurality of frictional engagement elements (32,33,34), and a coast stop unit (12) which stops the rotation of the drive power source (1) and releases the engaged frictional engagement element when the coast stop condition holds during travel. The coast stop unit includes a coast stop prohibiting unit which prohibits the coast stop regardless of the coast stop condition when it is predicted at the time of determining whether or not the coast stop condition holds that a belt tightening force of the pulley (21;22) falls below an engaging force of the frictional engagement element in the engaged state by the execution of the coast stop.