A drive unit 20 includes a speed reducer 12 that includes a plurality of gears having helical teeth and rotatably supported by bearings, and transfers rotation of a drive motor 11 to rear drive wheels 15 of a vehicle. The maximum value of torque to be generated by the drive motor 11 during rearward travel of the vehicle is set to be lower than that during forward travel. Under such a precondition, the size of a bearing that receives a load during rearward travel, among the bearings which constitute the speed reducer, is smaller than the size of a bearing that receives a load during forward travel.


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    Title :

    DRIVE UNIT AND DRIVE MODULE


    Additional title:

    ANTRIEBSEINHEIT UND ANTRIEBSMODUL
    UNITÉ DE COMMANDE ET MODULE DE COMMANDE


    Contributors:

    Publication date :

    2019-08-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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



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