PROBLEM TO BE SOLVED: To provide a gear change control device which can properly decide three control operation amounts by using a gear change model even if there are the three control operation amounts with respect to two gear change target values, and can suppress a gear change shock.SOLUTION: A gear change control device comprises an automatic transmission having a plurality of engagement devices for transmitting torque between an input shaft and an output shaft, and a control part. The control part sets output shaft torque and an input shaft rotation change amount as gear change target values, sets three values of input shaft torque, a torque capacity of the engagement device at a release side, and a torque capacity of the engagement device at an engagement side as control operation amounts, and calculates the control operation amounts on the basis of a gear change model while setting a share rate of torque which is possessed by the engagement devices at the release side and the engagement side at a gear change as a constriction condition. When a progress degree of a torque phase is not lower than a prescribed ratio, the control part stops an increase of the share rate xhi of the torque of the engagement device at the engagement side, sets the share rate as a prescribed value x1, and lowers the output torque of a drive force source according to a difference between the share rate xt of the torque corresponding to the progress degree of the engagement device at the engagement side and the prescribed value x1.

    【課題】2つの変速目標値に対して3つの制御操作量があったとしても変速モデルを用いて3つの制御操作量を適切に決定することができ、かつ変速ショックを抑制することができる変速制御装置を提供する。【解決手段】入力軸と出力軸との間でトルクを伝達する複数の係合装置を有する自動変速機と、制御部と、を備える。制御部は、出力軸トルクおよび入力軸回転変化量を変速目標値とし、入力軸トルク、解放側および係合側の係合装置のトルク容量の3つの値を制御操作量とし、変速時に係合側および解放側の係合装置が受け持つトルクの分担率を拘束条件として変速モデルに基づいて制御操作量を算出し、制御部は、トルク相の進行度合が所定割合以上である場合、係合側の係合装置のトルクの分担率xhiの増加を停止して所定値x1とし、かつ、係合側の係合装置の進行度合に応じたトルクの分担率xtと所定値x1との差分に応じて駆動力源の出力トルクを低下させる。【選択図】図8


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    Title :

    GEAR CHANGE CONTROL DEVICE


    Additional title:

    変速制御装置


    Contributors:

    Publication date :

    2015-08-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    F16H Getriebe , GEARING / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion



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