Multiple disc clutch apparatus
    11.
    发明授权
    Multiple disc clutch apparatus 有权
    多片离合器装置

    公开(公告)号:US08413782B2

    公开(公告)日:2013-04-09

    申请号:US12608893

    申请日:2009-10-29

    摘要: A clutch can comprise driving clutch plates spline-fitted on an input member, driven clutch plates arranged alternately with the driving clutch plates and spline-fitted on an output member, a clutch piston having one surface facing an oil pressure chamber and another surface facing the clutch plates and adapted to be displaced toward the plates by supplying oil to the oil pressure chamber and to be returned by discharging the oil from the chamber. A valve can pass through the clutch piston and be adapted to be closed for preventing oil from exiting the chamber to the other side of the clutch piston when the clutch is clutched-on and to be opened and allow airflow to the oil pressure chamber when the clutch is clutched-off. One or more weight reduction recesses can be formed on one surface of the clutch piston near the outer circumference further radially outward than the valve.

    摘要翻译: 离合器可以包括花键配合在输入构件上的驱动离合器片,与驱动离合器片交替配置的花键配合在输出构件上的从动离合器片,具有面向油压室的一个表面的离合器活塞, 离合器板,并且适于通过向油压室供油并通过从腔室排出油而返回到板。 阀门可以通过离合器活塞并适于闭合,以防止离合器离合器离开离合器活塞的另一侧并将其打开并允许空气流到油压室 离合器离合器。 一个或多个重量减轻凹部可以形成在离开活塞的一个表面上,靠近外圆周比阀更径向向外。

    CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION FOR VEHICLE
    12.
    发明申请
    CONTROL APPARATUS FOR AUTOMATIC TRANSMISSION FOR VEHICLE 有权
    用于车辆自动变速器的控制装置

    公开(公告)号:US20080177451A1

    公开(公告)日:2008-07-24

    申请号:US12018679

    申请日:2008-01-23

    IPC分类号: G06F7/00

    摘要: A control apparatus for an automatic transmission for a vehicle including an operational condition detecting unit for detecting a vehicle operational condition including at least a vehicle speed and an engine load, a slope detecting unit for detecting a road surface slope, and a shift characteristic selecting unit for selecting one of a plurality of shift maps preliminarily set according to the road surface slope. The control apparatus further includes an acceleration/deceleration calculating unit for calculating an acceleration or deceleration from the degree of increase or decrease in vehicle speed per unit time, a deceleration shift characteristic for deciding a gear position according to the deceleration and the vehicle speed, and a brake detecting unit for detecting a brake operation. When the road surface slope is determined to be a downhill slope by the slope detecting unit and the brake operation is detected by the brake detecting unit, the selected shift map is changed to the deceleration shift characteristic and the gear position is decided according to the deceleration shift characteristic.

    摘要翻译: 一种用于车辆的自动变速器的控制装置,包括用于检测至少包括车辆速度和发动机负载的车辆操作状况的操作条件检测单元,用于检测路面坡度的坡度检测单元和移动特性选择单元 用于选择根据路面坡度预先设定的多个班次图中的一个。 控制装置还包括:加速/减速计算单元,用于根据每单位时间的车速增加或减少的程度计算加速度或减速度;根据减速度和车速决定变速档位的减速换档特性;以及 制动检测单元,用于检测制动操作。 当通过斜率检测单元将路面坡度确定为下坡坡度并且通过制动检测单元检测到制动操作时,所选择的换档图被改变为减速换档特性,并且根据减速度来确定档位 移位特性。