PROBLEM TO BE SOLVED: To reduce the size of a drive unit and a drive module.SOLUTION: A drive unit 20 (drive module 40) comprises a reduction gear 12 having plural gears which respectively have oblique teeth and are rotatably supported by various kinds of bearings, and rotation of a drive motor 11 is transmitted to a rear tire 15 of a vehicle. Then, a torque limit value which is generated by the drive motor 11 in drive of backward movement of the vehicle is set to become lower than that in drive of forward movement of the vehicle. With the assumption, as a second input bearing 22b, a second intermediate bearing 24b, and a first output bearing 28a in which axial force is applied through the gears in drive of the backward movement, bearings which are smaller than a first input bearing 22a, a first intermediate bearing 24a, and a second output bearing 29a in which axial force is applied through the gears in drive of the forward movement, are constructed.

    【課題】駆動ユニット及び駆動モジュールにおいて小型化を図ること。【解決手段】駆動ユニット20(駆動モジュール40)は、斜歯を有するとともに各種軸受により回転自在に支持される歯車を複数有する減速機12を含み、駆動モータ11の回転を車両のリヤタイヤ15に伝達させるようにした。そして、車両の後退の駆動の際に駆動モータ11に発生させるトルク制限値が、前進の駆動の際に比べて低く設定するようにした。こういった前提において、後退の駆動の際に歯車を通じて軸方向の力が作用する第2入力軸受22b、第2中間軸受24b、及び第1出力軸受28aとして、前進の駆動の際に歯車を通じて軸方向の力が作用する第1入力軸受22a、第1中間軸受24a、及び第2出力軸受29aに比べて小型の軸受を構成するようにした。【選択図】図2


    Access

    Download


    Export, share and cite



    Title :

    DRIVE UNIT AND DRIVE MODULE


    Additional title:

    駆動ユニット及び駆動モジュール


    Contributors:

    Publication date :

    2015-11-19


    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 / F16H Getriebe , GEARING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60L PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES , Antrieb von elektrisch angetriebenen Fahrzeugen



    DRIVE UNIT AND DRIVE MODULE

    SHIGETA RYOHEI / IWASE YOSHINAO / NOMURA KEITA et al. | European Patent Office | 2015

    Free access

    DRIVE UNIT AND DRIVE MODULE

    SHIGETA RYOHEI / IWASE YOSHINAO / NOMURA KEITA et al. | European Patent Office | 2015

    Free access

    DRIVE UNIT AND DRIVE MODULE

    SHIGETA RYOHEI / IWASE YOSHINAO / NOMURA KEITA et al. | European Patent Office | 2019

    Free access

    Drive unit and drive module

    SHIGETA RYOHEI / IWASE YOSHINAO / NOMURA KEITA et al. | European Patent Office | 2017

    Free access

    Switching unit and drive unit for drive train of motor vehicle, and axle module

    FISCHER PATRICK | European Patent Office | 2022

    Free access