To provide a control unit for a four-wheel drive vehicle that can obtain the vehicle body speed that is highly accurate.SOLUTION: A control unit 6 for controlling a four-wheel drive vehicle 1 capable of driving each wheel of left and right front wheels 11, 12 and left and right rear wheels 13, 14 includes: vehicle body speed calculation means 611 that calculates an integrated value of acceleration speed in a vehicle front-rear direction detected by an acceleration sensor 75 and a vehicle body speed based on a rotation speed of each wheel; and drive force control means 612 that controls drive force transmitted to at least any wheel of the wheels by using the vehicle body speed. The vehicle body speed calculation means 611 calculates a correction value based on the rotation speed of each wheel, the rotation speed of which is lowest, under predetermined conditions, and makes correction using the correction value such that the vehicle body speed is approximated to a vehicle body speed conversion value of the lowest rotation speed of the wheel.SELECTED DRAWING: Figure 2

    【課題】正確性の高い車体速度を求めることが可能な4輪駆動車の制御装置を提供する。【解決手段】左右前輪11,12及び左右後輪13,14の各車輪を駆動可能な4輪駆動車1を制御する制御装置6は、加速度センサ75によって検出された車両前後方向の加速度の積算値、及び各車輪の回転速度に基づいて車体速度を演算する車体速度演算手段611と、車体速度を用いて各車輪のうち少なくとも何れかの車輪に伝達される駆動力を制御する駆動力制御手段612とを備える。車体速度演算手段611は、所定の条件下において各車輪のうち最も回転速度が遅い車輪の回転速度に基づいて補正値を算出し、当該補正値を用いて最も回転速度が遅い車輪の回転速度の車体速度換算値に車体速度が近づくように補正を行う。【選択図】図2


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    Titel :

    CONTROL UNIT FOR FOUR-WHEEL DRIVE VEHICLE


    Weitere Titelangaben:

    4輪駆動車の制御装置


    Beteiligte:
    ZHENG HUI (Autor:in) / HIRATA WATARU (Autor:in) / YAMAZAKI TETSUYA (Autor:in)

    Erscheinungsdatum :

    2021-04-30


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Japanisch


    Klassifikation :

    IPC:    B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / 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



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