CONTROL DEVICE OF CONTINUOUSLY VARIABLE TRANSMISSION

PROBLEM TO BE SOLVED: To suppress the occurrence of an overshoot in transmission control during the start of a vehicle mounted with a continuously variable transmission.SOLUTION: A control device of a continuously variable transmission previously reads a target input rotation speed during the start...

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Bibliographische Detailangaben
Hauptverfasser:	KIMURA MOTONOBU, WASHIO TAICHI, SHIMOSATO YUYA
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING MECHANICAL ENGINEERING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To suppress the occurrence of an overshoot in transmission control during the start of a vehicle mounted with a continuously variable transmission.SOLUTION: A control device of a continuously variable transmission previously reads a target input rotation speed during the start of a vehicle, calculates a feed forward control amount for rapidly starting the transmission control based on a transmission speed and an input torque of a transmission, and executes the feed forward control during the start of the vehicle based on the calculated feed forward control amount to increase transmission oil pressure during the start of the vehicle (during the start of the transmission). Such control allows the vehicle to start the transmission earlier than that in a case of executing only the feed back control. Consequently, the control device can suppress the continuously variable transmission using the lowest shift in terms of hardware as a maximum transmission ratio γmax during the start of the vehicle from occurring overshoot in the transmission control during the start of the vehicle.