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1. (WO2010122646) SPEED-CHANGE CONTROLLER FOR VEHICULAR TRANSMISSIONS

Pub. No.:    WO/2010/122646    International Application No.:    PCT/JP2009/058048
Publication Date: Fri Oct 29 01:59:59 CEST 2010 International Filing Date: Fri Apr 24 01:59:59 CEST 2009
IPC: F16H 61/02
F16H 15/52
F16H 37/02
F16H 61/66
F16H 61/68
Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA
トヨタ自動車株式会社
OGAWA, Hiroyuki
小川 裕之
MURAKAMI, Akira
村上 新
Inventors: OGAWA, Hiroyuki
小川 裕之
MURAKAMI, Akira
村上 新
Title: SPEED-CHANGE CONTROLLER FOR VEHICULAR TRANSMISSIONS
Abstract:
Provided is a controller, which establishes a speed change in a stepped transmission mechanism continuously variably by the control of a continuously variable transmission mechanism. By tilting a rolling element, a continuously variable transmission mechanism for causing the actions to accelerate and decelerate a first output disk and a second output disk simultaneously is connected in series to a stepped transmission mechanism for changing the gear ratio stepwise. The output disks are individually connected to two intermediate shafts in the stepped transmission mechanism. In the speed change at the stepped transmission mechanism, the rolling element is tilted to increase the rotation number of one intermediate shaft and to decrease the rotation number of the other intermediate shaft, so that the rotation number of a mating member to be engaged by a switchover mechanism and the rotation number of the switchover mechanism are synchronized (at Steps S3, S4 and S5).