PROBLEM TO BE SOLVED: To provide a driving force control device of an electric vehicle which can suppress torsional vibration generated in a driving system and suppress a gap between target driving force and actual driving force at the time of travel resistance occurrence and braking.SOLUTION: A driving force control device of an electric vehicle comprises: target driving force setting means 11 which sets target driving force on the basis of requested driving force of a driver; division means 12 which divides the target driving force by a gear reduction ratio; rotational speed detection means 14 which detects the rotational speed of a motor; estimation value arithmetic means 15 which calculates a motor torque estimation value by using a model representing a reverse system of an ideal vehicle model on the basis of the rotational speed of the motor; correction amount arithmetic means 20 which calculates a correction amount which reduces the deviation between a motor torque command value for controlling driving force of the motor and the motor torque estimation value and from which a disturbance torque component is removed; and command value arithmetic means 13 which calculates the motor torque command value by adding the correction amount to the target driving force divided by the gear reduction ratio.

    【課題】駆動系に生じるねじれ振動を抑制するとともに、走行抵抗発生時や制動時において目標駆動力と実際の駆動力との乖離を抑制することができる電動車両の駆動力制御装置を提供する。【解決手段】運転者の要求駆動力に基づいて目標駆動力を設定する目標駆動力設定手段11と、目標駆動力を減速比で除算する除算手段12と、モータの回転速度を検出する回転速度検出手段14と、モータの回転速度に基づいて理想車両モデルの逆系を表すモデルを用いてモータトルク推定値を演算する推定値演算手段15と、モータの駆動力を制御するためのモータトルク指令値と、モータトルク推定値との偏差を小さくする補正量であって、且つ外乱トルク成分を除去した補正量を演算する補正量演算手段20と、減速比で除算された目標駆動力に補正量を加算することにより、モータトルク指令値を演算する指令値演算手段13とを備える。【選択図】図1


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    Title :

    DRIVING FORCE CONTROL DEVICE OF ELECTRIC VEHICLE


    Additional title:

    電動車両の駆動力制御装置


    Contributors:

    Publication date :

    2015-06-22


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



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