CONTROL DEVICE OF TRANSMISSION

PROBLEM TO BE SOLVED: To provide a control device of a transmission capable of suppressing switching of a first mode and a second mode in a state that a change gear ratio in the first mode and a change gear ratio in the second mode deviate from each other.SOLUTION: Switching of a belt mode and a spl...

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Bibliographische Detailangaben
Hauptverfasser: YAMAMOTO JUNICHI, YASUE HIDEKI, NAKAJIMA MASAMI, KISHI DAISUKE, MIYAJI HIROSHI
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:PROBLEM TO BE SOLVED: To provide a control device of a transmission capable of suppressing switching of a first mode and a second mode in a state that a change gear ratio in the first mode and a change gear ratio in the second mode deviate from each other.SOLUTION: Switching of a belt mode and a split mode is performed by changeover of two clutches, and a belt change gear ratio as a change gear ratio of a continuously variable transmission mechanism is changed to a split change gear ratio in switching the mode. A double clutch control is executed (time T2) in accordance with agreement of the belt change gear ratio with the split change gear ratio, a hydraulic pressure of a clutch at an engagement side is increased while keeping a hydraulic pressure of a clutch at a release side, and the clutch at the engagement side is engaged.SELECTED DRAWING: Figure 6 【課題】第1モードでの変速比と第2モードでの変速比とがずれた状態で第1モードと第2モードとの切り替えが行われることを抑制できる、変速機の制御装置を提供する。【解決手段】ベルトモードとスプリットモードとの切り替えは、2個のクラッチの掛け替えにより達成され、そのモード切替の際には、無段変速機構の変速比であるベルト変速比がスプリット変速比に向けて変更される。そして、ベルト変速比がスプリット変速比と一致したことに応じて、ダブルクラッチ制御が実施され(時刻T2)、解放側のクラッチの油圧を保持したまま、係合側のクラッチの油圧が上げられて、係合側のクラッチが係合する。【選択図】図6