SHIFT CONTROL DEVICE OF CONTINUOUSLY VARIABLE TRANSMISSION

To achieve both of re-acceleration feeling in response to driver's re-acceleration request and deceleration feeling in response to driver's deceleration request, in a transfer scene from drive traveling to an accelerator releasing operation.SOLUTION: A shift controller 800 has a flexible m...

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Main Authors OGAWA MASAKATSU, NISHIZAWA MASAO, SHIMADA ATSUSHI, TSUKAMOTO SHIN, YAMAZAKI MINA, NEGISHI KATSUYA, SUWABE TOMOYUKI, HISHIDA KENJI, IWASA MOTOKI, INOUE TAKUICHIRO
Format Patent
LanguageEnglish
Japanese
Published 17.09.2020
Subjects
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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Summary:To achieve both of re-acceleration feeling in response to driver's re-acceleration request and deceleration feeling in response to driver's deceleration request, in a transfer scene from drive traveling to an accelerator releasing operation.SOLUTION: A shift controller 800 has a flexible manual gear change control portion 803 for controlling a gear change ratio of a variator 4 to a target input rotating speed having prescribed rotation step to an input rotating speed of the variator 4 in a shift request operation, on the basis of driver's shift request operation not on the basis of a predetermined plurality of fixed gear change ratios, when a manual gear change mode is selected. The flexible manual gear change control portion 803 determines a re-acceleration standby rotation step ΔNreacc determined by a shift-down request operation before lapse of a prescribed time from detection when an accelerator releasing operation is detected in a drive traveling state, to be less than a coast-down rotation step ΔNCD determined by the shift-down request operation after the lapse of the prescribed time.SELECTED DRAWING: Figure 2 【課題】ドライブ走行からアクセル足離し操作への移行シーンにおいて、ドライバの再加速要求に応える再加速感とドライバの減速要求に応える減速感とを両立すること。【解決手段】変速コントローラ８００は、マニュアル変速モードを選択すると、予め設定された複数の固定変速比ではなく、ドライバによるシフト要求操作に基づいて、シフト要求操作時のバリエータ４の入力回転数に対し所定の回転段差を有する目標入力回転数に、バリエータ４の変速比制御を行うフレキシブルマニュアル変速制御部８０３を有する。フレキシブルマニュアル変速制御部８０３は、ドライブ走行状態においてアクセル足離し操作を検知した場合、検知から所定時間が経過する以前のシフトダウン要求操作によって設定される再加速待機回転段差ΔＮreaccは、所定時間が経過した後のシフトダウン要求操作によって設定されるコーストダウン回転段差ΔＮCDより小さく設定する。【選択図】図２
Bibliography:Application Number: JP20190048553