DISPOSITIF DE COMMANDE DE CHANGEMENT DE VITESSE POUR UNE TRANSMISSION AUTOMATIQUE

Disclosed is a gear shift controller for an automatic transmission with a gear shift, having a hydraulic torque converter; a gear change group, having a plurality of gears, each gear providing a different transmission ratio for the transmission of power from said hydraulic converter to the output of...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MASAO NISHIKAWA, SHINZO SAKAI ET YOSHIMI SAKARAI
Format:	Patent
Sprache:	fre
Schlagworte:	BLASTING CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE ORDIFFERENT FUNCTION CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING 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:	Disclosed is a gear shift controller for an automatic transmission with a gear shift, having a hydraulic torque converter; a gear change group, having a plurality of gears, each gear providing a different transmission ratio for the transmission of power from said hydraulic converter to the output of the transmission, each of said gears having a gear train; a one-way clutch interposed in at least one of said gear trains; a plurality of clutch means operatively connected with said gear trains for actuating each of said gear trains selectively; a gear change determination circuit operatively connected with said clutch means for controlling the operation of each of said clutch means according to a predetermined gear-shifting program; a coasting detection circuit operatively connected with said gear change determination circuit, for detecting a car in the coasting state; a gear shift limiting circuit, operatively connected with said gear change determination circuit, for actuating only said gear train in which said one-way clutch is interposed immediately regardless of the operation of said gear change determination circuit, when said coasting detection circuit has determined the car to be coasting; and an operation transfer control system for transferring the operation of the gear shift limiting circuit.