Vehicle drive device
    1.
    发明授权

    公开(公告)号:US11662010B2

    公开(公告)日:2023-05-30

    申请号:US17262848

    申请日:2019-08-09

    CPC classification number: F16H55/0806 F16H55/17 F16H1/08 F16H2055/0893

    Abstract: A vehicle drive device uses a parallel shaft gear reducer (30) in which a gear is composed of helical gear, as a speed reducer part (B) that decelerates and outputs a rotation of an electric motor part (A). In the vehicle drive device, of meshing parts of the gears formed in the speed reducer part (B), two gears form a meshing part in which the amount of misalignment that occurs between the tooth surfaces of the two gears meshing with each other is different during driving and during coasting of a vehicle. A first tooth surface (S1) meshing with a mating tooth surface during driving is subjected to tooth surface modification, and a second tooth surface (S2) meshing with a mating tooth surface during coasting is subjected to tooth surface modification of an amount different from an amount of the tooth surface modification to the first tooth surface (S1).

    In-wheel motor drive device
    4.
    发明授权

    公开(公告)号:US11679663B2

    公开(公告)日:2023-06-20

    申请号:US17268332

    申请日:2019-09-09

    CPC classification number: B60K7/0007 B60K17/043

    Abstract: An input gear, an output gear, an input-side intermediate gear, and an output-side intermediate gear are helical gears. The output gear and the output-side intermediate gear have a larger module than the input gear and the input-side intermediate gear. The input gear and the input-side intermediate gear have a larger twisting angle than the output gear and the output-side intermediate gear. The output gear and the output-side intermediate gear have a larger effective tooth length than the input gear and the input-side intermediate gear.

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