Multi-speed transmission with selectable one-way braking clutch
    26.
    发明授权
    Multi-speed transmission with selectable one-way braking clutch 有权
    具有可选单向制动离合器的多速变速箱

    公开(公告)号:US08029403B2

    公开(公告)日:2011-10-04

    申请号:US12404683

    申请日:2009-03-16

    IPC分类号: F16H3/62

    摘要: A multi-speed transmission for a vehicle is provided with a selectable one-way braking clutch (SOWBC). The transmission has an input member connected for common rotation with one of the members of four planetary gear sets and an output member connected for common rotation with another of the members of the planetary gear sets. Four interconnecting members connect different members of the planetary gear sets for common rotation. A first brake is selectively engagable to ground the first member of the first planetary gear set to the stationary member. A first, a second, and a third rotating clutch are each selectively engagable to connect a different respective pair of the members of the planetary gear sets for common rotation. A selectable one-way braking clutch is configured to brake in one rotational direction and is selectively reversible to brake in an opposite rotational direction, and freewheels in some speed ratios.

    摘要翻译: 用于车辆的多速变速器设置有可选择的单向制动离合器(SOWBC)。 变速器具有与四个行星齿轮组的构件中的一个共同旋转的输入构件和与行星齿轮组的另一个构件共同旋转连接的输出构件。 四个互连构件连接行星齿轮组的不同构件以进行共同旋转。 第一制动器选择性地可接合以将第一行星齿轮组的第一构件接地到固定构件。 第一,第二和第三旋转离合器各自选择性地可接合以连接用于共同旋转的行星齿轮组的不同相应的一对构件。 可选择单向制动离合器构造成在一个旋转方向上制动并且选择性地可逆地在相反的旋转方向上制动,并且以一定的速度比自由轮。

    CONTROL OF SELECTABLE ONE-WAY CLUTCH IN A TRANSMISSION
    27.
    发明申请
    CONTROL OF SELECTABLE ONE-WAY CLUTCH IN A TRANSMISSION 有权
    控制传输中的可选择单向离合器

    公开(公告)号:US20100063698A1

    公开(公告)日:2010-03-11

    申请号:US12206847

    申请日:2008-09-09

    IPC分类号: B60W10/10 G06F17/00

    摘要: A powertrain in a vehicle includes an electro-mechanical transmission having a selectable one-way clutch mechanically-operatively coupled to an internal combustion engine and configured to selectively transmit mechanical power to an output member. A control method includes monitoring a vehicle speed, monitoring a transmission gear state, comparing the vehicle speed to a threshold low speed range, transitioning a selectable one-way clutch into an engaged mode when said vehicle speed is not in a forward direction in excess of the threshold low speed range, and maintaining the selectable one-way clutch in the engaged mode based upon the transmission gear state remaining in a first gear state and the vehicle speed remaining within said threshold low speed range, a neutral state, or a reverse state.

    摘要翻译: 车辆中的动力总成包括机电变速器,其具有机械操作地联接到内燃机并且被配置为选择性地将机械动力传递到输出构件的可选单向离合器。 一种控制方法,包括监视车速,监测变速器档位状态,将车速与阈值低速范围进行比较,当所述车速不在向前方向上时,将可选择的单向离合器转换为接合模式 阈值低速范围,并且基于保持在第一档位状态的传动档位状态和剩余在所述阈值低速范围内的车速,中立状态或倒车状态,将选择性单向离合器保持在接合状态 。