To provide an auxiliary driving device of a four-wheel drive car which can reduce vibration and sound at the time of engagement of a dog clutch while transmitting a driving force of an electric motor to an auxiliary driving wheel via the dog clutch.SOLUTION: An auxiliary driving device 2 comprises: a drive part 20 having an electric motor 3; a dog clutch 5 having a first engagement component 51 and a second engagement component 52; an actuator 6 which moves the second engagement component 52; and a control part 10 which controls the electric motor 3 and the actuator 6. The actuator 6 moves the second engagement component 52 between a separation position at which the second engagement component is not engaged with the first engagement component 51, a contact position at which a first engagement tooth 514 and a second engagement tooth 524 contact each other, and an engagement position at which these are engaged with each other. The control part 10 so makes electric current, which is supplied to the electric motor 3 when the second engagement component 52 is positioned between the contact position and the engagement position as to be smaller than electric current required for maintaining a rotational speed of the electric motor 3.SELECTED DRAWING: Figure 6

    【課題】噛み合いクラッチを介して電動モータの駆動力を補助駆動輪に伝達しながらも、噛み合い時における振動や音を低減することが可能な四輪駆動車の補助駆動装置を提供する。【解決手段】補助駆動装置2は、電動モータ3を有する駆動部20と、第1の噛み合い部材51及び第2の噛み合い部材52を有する噛み合いクラッチ5と、第2の噛み合い部材52を移動させるアクチュエータ6と、電動モータ3及びアクチュエータ6を制御する制御部10とを備える。アクチュエータ6は、第2の噛み合い部材52を、第1の噛み合い部材51と噛み合わない離間位置と、第1の噛み合い歯514と第2の噛み合い歯524とが当接し得る当接位置と、これらが噛み合う噛合位置との間で移動させる。制御部10は、第2の噛み合い部材52が当接位置から噛合位置の間にあるときに電動モータ3に供給する電流を、電動モータ3の回転速度を維持するために必要な電流よりも小さくする。【選択図】図6


    Access

    Download


    Export, share and cite



    Title :

    AUXILIARY DRIVING DEVICE


    Additional title:

    補助駆動装置


    Contributors:

    Publication date :

    2019-01-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    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 / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen



    DRIVING AUXILIARY DEVICE

    European Patent Office | 2021

    Free access

    Auxiliary driving device

    WU HUAHUA / JIANG ZHIZHOU | European Patent Office | 2021

    Free access

    Auxiliary driving device and auxiliary driving method for semitrailer

    LI XING / GUO MINGYANG / AN NING et al. | European Patent Office | 2023

    Free access

    Driving auxiliary device

    YANG HUILONG | European Patent Office | 2024

    Free access

    DRIVING AUXILIARY DEVICE

    JHANG KYOUNG SON / JUNG KWANG YOUNG / KIM HYE JOO | European Patent Office | 2021

    Free access