PROBLEM TO BE SOLVED: To provide a drive power controller of an electric vehicle capable of correcting torque command values of motors and improving straight running performance and turning performance of a vehicle, without requiring a yaw rate sensor.SOLUTION: The drive power controller of an electric vehicle having a right motor 4R for transmitting drive power to a right driven wheel, and a left motor 4L for transmitting drive power to a left driven wheel estimates the torque difference between left and right motors on the basis of a steering angle of the electric vehicle and rotational speed of the left and right motors, and calculates torque command values of the left and right motors, on the basis of the condition of the vehicle. The controller calculates a target motor torque difference being a target value of the torque difference between the left and right motors, on the basis of last torque command values of the left and right motors, and calculates torque correction values of the left and right motors on the basis of the estimated torque difference between the left and right motors, and the target motor torque difference. Subsequently, on the basis of the calculated torque correction values, the controller corrects at least one of the torque command value of the right motor and the torque command value of the left motor.SELECTED DRAWING: Figure 4

    【課題】ヨーレートセンサを必要とせずにモータのトルク指令値を補正して、車両の直進性や旋回性を向上させる。【解決手段】右側の駆動輪に駆動力を伝達する右モータ4R及び左側の駆動輪に駆動力を伝達する左モータ4Lを有する電動車両の駆動力制御装置は、電動車両の操舵角及び左右のモータの回転速度に基づいて、左右のモータのトルク差を推定し、車両の状態に基づいて、左右のモータのトルク指令値を算出する。また、左右のモータの最終トルク指令値に基づいて、左右のモータのトルク差の目標値である目標モータトルク差を算出し、推定した左右のモータのトルク差と目標モータトルク差とに基づいて、左右のモータのトルク補正値を算出する。そして、算出したトルク補正値に基づいて、右モータのトルク指令値及び左モータのトルク指令値の少なくとも一方を補正する。【選択図】図4


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    Title :

    DRIVE POWER CONTROLLER OF ELECTRIC VEHICLE


    Additional title:

    電動車両の駆動力制御装置


    Contributors:
    ONO SHO (author)

    Publication date :

    2016-06-20


    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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