To provide a torque pulsation suppression system which can sufficiently gain depression effect of torque pulsation.SOLUTION: An torque pulsation suppression system is given in which: torque pulsation of a crank shaft at the time of starting an engine is measured to generate a torque pulsation table based on the torque pulsation; and damping torque is obtained by multiplying the torque pulsation table by damping control gain. Components with more than cut-off frequency that is a prescribed frequency higher than resonance frequency are removed by applying a low-pass filter to the torque pulsation table (reference torque pulsation table) (ST5), and then the damping torque is obtained by use of the torque pulsation table from which the components with more than the cut-off frequency are removed. Thereby, a motor torque command value used for motor control does not contain a high frequency component so as to enable the motor control according to the motor torque command value.SELECTED DRAWING: Figure 4

    【課題】トルクの脈動の抑制効果を十分に得ることができるトルク脈動抑制システムを提供する。【解決手段】エンジン始動時のクランクシャフト上のトルク脈動を計測し、該トルク脈動からトルク脈動テーブルを生成し、該トルク脈動テーブルに制振制御ゲインを乗算して制振トルクを求めるようにしたトルク脈動抑制システムに対し、トルク脈動テーブル(基準トルク脈動テーブル)にローパスフィルタをかけることによって、共振周波数よりも高い所定周波数であるカットオフ周波数以上の成分を除外し(ST5)、そのカットオフ周波数以上の成分が除外されたトルク脈動テーブルを使用して制振トルクを求める。これにより、モータ制御に使用されるモータトルク指令値に高周波数成分が含まれないことになり、モータトルク指令値に応じたモータ制御を行うことが可能になる。【選択図】図4


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    Title :

    TORQUE PULSATION SUPPRESSION SYSTEM


    Additional title:

    トルク脈動抑制システム


    Contributors:

    Publication date :

    2023-04-05


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    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 / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / F02D CONTROLLING COMBUSTION ENGINES , Steuern oder Regeln von Brennkraftmaschinen



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