Method for operating a multi-step automatic transmission
    45.
    发明授权
    Method for operating a multi-step automatic transmission 失效
    多步自动变速器的运行方法

    公开(公告)号:US08437928B2

    公开(公告)日:2013-05-07

    申请号:US12107860

    申请日:2008-04-23

    IPC分类号: G06F17/00

    摘要: A method for operating a multi-step automatic transmission arranged in a drive train of a vehicle with a combustion engine. When downshifting from the third gear ratio to a second gear ratio, higher inertia must be shifted than when shifting from the third gear ratio to the first gear ratio. Upon a demand for a coasting downshift from the third gear ratio to the second gear ratio or to the first gear ratio with no performance demand on the combustion engine, the coasting downshift to the second gear ratio is not executed and the first gear ratio is engaged when the requirements for downshifting to the first gear ratio are met.

    摘要翻译: 一种用于操作布置在具有内燃机的车辆的传动系中的多级自动变速器的方法。 当从第三齿轮比减速到第二齿轮比时,与从第三齿轮比转换到第一齿轮比时相比,较高的惯性必须移动。 当需要从第三齿轮比到第二齿轮比的惯性降档或者对内燃机没有性能要求的第一齿轮比时,不执行惯性换低档到第二齿轮比,并且接合第一齿轮比 当满足降档至第一档位的要求时。

    Gear shift system for vehicle, control method and control device for automatic transmission
    46.
    发明授权
    Gear shift system for vehicle, control method and control device for automatic transmission 失效
    用于车辆的变速系统,自动变速器的控制方法和控制装置

    公开(公告)号:US08301351B2

    公开(公告)日:2012-10-30

    申请号:US12216421

    申请日:2008-07-03

    IPC分类号: G06F7/00

    摘要: A parameter α(OUT) having an accelerator pedal position, a vehicle speed and a drive force as components is set according to information representing a driver's operation and information representing running environment of a vehicle. A gear is set according to the parameter α(OUT) and a map determining the gear based on the accelerator pedal position, the vehicle speed and the drive force. A gear shift line is defined such that a rate of increase of the drive force with respect to the vehicle speed is zero or more. A down-shift line is defined such that the drive force decreases with increase in accelerator pedal position. Down-shift after up-shift as well as the up-shift after the down-shift are inhibited when both a condition that an amount of change of the accelerator pedal position after last gear shift is larger than a threshold and a condition that an amount of change of the drive force after the last gear shift is larger than the threshold are satisfied.

    摘要翻译: 根据表示驾驶者的操作的信息和表示车辆的行驶环境的信息,设定具有加速踏板位置,车速和驱动力作为部件的参数α(OUT)。 根据参数α(OUT)和基于加速器踏板位置,车速和驱动力确定齿轮的映射来设置齿轮。 定义变速线,使得驱动力相对于车速的增加率为零或更大。 下移线被限定为使得驱动力随着加速踏板位置的增加而减小。 当最后换挡后的加速踏板位置的变化量大于阈值的条件和大于阈值的条件都被禁止时,在向上移位之后的向下换档以及下移之后的上移被抑制, 满足最后换挡后的驱动力的变化大于阈值。

    Shift control apparatus of automatic transmission
    47.
    发明授权
    Shift control apparatus of automatic transmission 有权
    自动变速箱换档控制装置

    公开(公告)号:US07914417B2

    公开(公告)日:2011-03-29

    申请号:US11957645

    申请日:2007-12-17

    申请人: Jin Soo Lee

    发明人: Jin Soo Lee

    IPC分类号: F16H61/04 F16H59/20

    摘要: A shift control method and apparatus of an automatic transmission for controlling a shift from one speed, achieved by engagement of a first and a second frictional element, to another speed, achieved by engagement of a third and a fourth frictional element. The method includes detecting a rotation speed of a turbine, detecting a rotation speed of at least one operating member of at least one planetary gear set of the automatic transmission, and controlling the shift according to the rotation speeds of the turbine and the operating member. The control includes overlapping a first shift, from the one speed to an additional speed, with a second shift, from the additional speed to the other speed. The additional speed has a gear ratio that is near a gear ratio of the one speed.

    摘要翻译: 一种自动变速器的变速控制方法和装置,用于通过第三和第四摩擦元件的接合来控制通过第一摩擦元件和第二摩擦元件的接合实现的一个速度的转换到另一个速度。 该方法包括检测涡轮机的转速,检测自动变速器的至少一个行星齿轮组的至少一个操作构件的转速,并且根据涡轮机和操作构件的转速来控制换档。 该控制包括从第一移位,从一速度到另一速度,从第二移位,从附加速度到另一速度。 附加速度具有接近一速度的齿轮比的齿轮比。