PROBLEM TO BE SOLVED: To provide a control device for a slip rate of an electric vehicle, capable of properly controlling a slip rate even when a running passage changes to a low μ passage from a high μ passage.SOLUTION: The control device (a controller 10) for a slip rate of an electric vehicle using a motor 6 as a power source is provided that comprises: a driving stiffness calculation part 11 for obtaining an actual slip rate based on a vehicle body speed and a tire speed of an electric vehicle 1 and obtaining as driving stiffness, the ratio of the actual slip rate and actual torque output by the motor 6; a target slip rate calculation part 14 for obtaining a target slip rate based on the driving stiffness and target torque of the motor 6 corresponding to accelerator operation of the electric vehicle 1; and a command torque calculation part 12 (a first torque change calculation part 13) for obtaining command torque to be output from the motor 6 based on the target slip rate.SELECTED DRAWING: Figure 3

    【課題】走行路が高μ路から低μ路へと変化した場合にもスリップ率を適切に制御することができる電動車両のスリップ率制御装置を提供する。【解決手段】モータ6を動力源とする電動車両のスリップ率制御装置(コントローラ10)であって、電動車両1の車体速度及びタイヤ速度から実スリップ率を求め、この実スリップ率とモータ6が出力する実トルクとの比をドライビングスティフネスとして求めるドライビングスティフネス算出部11と、このドライビングスティフネスと、電動車両1のアクセル操作に応じたモータ6の目標トルクとに基づいて、目標スリップ率を求める目標スリップ率算出部14と、この目標スリップ率に基づいて、モータ6から出力させるべき指令トルクを求める指令トルク算出部12(第1トルク変化量算出部13)と、を有する。【選択図】図3


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    Title :

    CONTROL DEVICE FOR SLIP RATE OF ELECTRIC VEHICLE


    Additional title:

    電動車両のスリップ率制御装置


    Contributors:

    Publication date :

    2016-03-24


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



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