PROBLEM TO BE SOLVED: To suppress the pitching vibration of a vehicle just before the vehicle is stopped without using a vehicle model.SOLUTION: A vehicle pitching vibration control device A including right and left inverter-motors 5 and 6 generating a regenerative brake force in a drive source, and reducing the total brake force of an entire vehicle just before the vehicle is stopped during regenerative braking, thereby damping vibration at a time of stopping the vehicle. This pitching vibration control device A comprises: a smooth-stop-starting-timing computing unit 10e; a smooth-stop-target-value computing unit 10c setting a final target value of a motor brake/drive force in a process of reducing the total brake force; and a smooth-stop-control-waveform computing unit 10d reducing the regenerative brake force at a predetermined down grade when a vehicle velocity reaches a torque reduction start vehicle velocity V2 during the regenerative braking. The smooth-stop-starting-timing computing unit 10e sets the torque-reduction-start vehicle velocity V2 for setting a vehicle longitudinal acceleration to be equal to or lower than a predetermined allowable value when the vehicle changes from a deceleration state to a zero velocity state, on the basis of the regenerative brake force during the regenerative braking, the final target value of the motor drive/brake force, and the predetermined down grade.SELECTED DRAWING: Figure 2

    【課題】車両モデルを使うことなく、車両停止間際の前後振動を抑制すること。【解決手段】駆動源に回生制動力を発生する左右のインバータ&モータ5,6を有し、回生制動中の車両停止直前で車両全体の総制動力を減少させることにより、車両停止の際の振動を低減する。この前後振動制御装置Aにおいて、滑らか停止開始時期演算部10eと、総制動力の減少工程におけるモータ制駆動力の最終目標値を設定する滑らか停止目標値演算部10cと、回生制動中に車速がトルク減少開始車速V2に達すると所定の減少勾配で回生制動力を減少させる滑らか停止制御波形演算部10dと、を有する。滑らか停止開始時期演算部10eは、車両が減速状態から車速ゼロに移行する際の車両前後方向加速度を所定許容値以下とするトルク減少開始車速V2を、回生制動中の回生制動力と、モータ制駆動力の最終目標値と、所定の減少勾配と、に基づいて設定する。【選択図】図2


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    Title :

    VEHICLE PITCHING VIBRATION CONTROL DEVICE


    Additional title:

    車両の前後振動制御装置


    Contributors:

    Publication date :

    2016-03-03


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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