To provide a shift control device of a continuously variable transmission capable of suppressing generation of shock while quickly changing gear to a structural maximum or minimum gear ratio, when sudden shift request is generated.SOLUTION: In a shift control device of a continuously variable transmission including: a driving pulley and a driven pulley respectively having a movable sheave and a fixed sheave; a belt wound on a groove of each pulley; and a fixing member limiting movement of the movable sheave and setting a maximum width of the groove, and changing speed by changing a winding radius of the belt, a controller for controlling a driving power source capable of transmitting torque to the continuously variable transmission and the driving pulley, reduces the torque output by the driving power source (step S13) when the movement of the movable sheave is limited by the fixing member (step S12), in a case when the setting of a change gear ratio γmax to maximize the width of the groove is requested (step S1).SELECTED DRAWING: Figure 4
【課題】急激な変速要求が生じた際に、構造上の最大あるいは最小変速比まで迅速に変速しつつ、ショックの発生を抑制することが可能な無段変速機の変速制御装置を提供する。【解決手段】それぞれ可動シーブと固定シーブとを有する駆動プーリおよび従動プーリと、各プーリの溝に巻き掛けられるベルトと、可動シーブの移動を制限して溝の最大幅を設定する固定部材とを備え、ベルトの巻き掛け半径を変えて変速する無段変速機の変速制御装置であって、無段変速機および駆動プーリにトルク伝達可能な駆動力源を制御するコントローラは、溝の幅が最大幅となる変速比γmaxの設定を要求された場合に(ステップS1)、固定部材によって可動シーブの移動を制限された際(ステップS12)に駆動力源の出力するトルクを低下させる(ステップS13)。【選択図】図4
SHIFT CONTROL DEVICE OF CONTINUOUSLY VARIABLE TRANSMISSION
無段変速機の変速制御装置
2023-12-07
Patent
Elektronische Ressource
Japanisch
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