Error recognition process for automatic gear boxes transmission
    1.
    发明授权
    Error recognition process for automatic gear boxes transmission 失效
    自动变速箱传动的误差识别过程

    公开(公告)号:US6081760A

    公开(公告)日:2000-06-27

    申请号:US983242

    申请日:1998-01-09

    摘要: The invention concerns a method of monitoring the gearshift process in an automatic transmission. In order to be able to recognize fault conditions, the invention proposes in one embodiment that the actual change in transmission ratio is compared with a required change in transmission ratio. In another embodiment the change in the difference in the speed of the rotation of the engaging shift element is examined. It is also possible to analyze the gradient of the difference in the speed of rotation of the engaging shift element. A further possibility is to monitor the gradient of the transmission input speed. In addition, the gradient of the speed at the transmission output can be monitored. As result of the analysis, the transmission ratio is either retained or a predetermined safety condition is brought about.

    摘要翻译: PCT No.PCT / EP96 / 03209 Sec。 371日期1998年1月9日 102(e)1998年1月9日PCT PCT 1996年7月20日PCT公布。 公开号WO97 / 05409 日期1997年2月13日本发明涉及一种在自动变速箱中监测换档过程的方法。 为了能够识别故障状况,本发明在一个实施例中提出将传动比的实际变化与传动比的所需变化进行比较。 在另一个实施例中,检查接合变速元件的旋转速度的差异的变化。 也可以分析接合移动元件的旋转速度差的梯度。 进一步的可能性是监测变速器输入速度的梯度。 此外,可以监视传输输出速度的梯度。 作为分析的结果,传动比被保留或者达到预定的安全条件。

    Process for automatically co-ordinating the filling operation of shift
elements
    2.
    发明授权
    Process for automatically co-ordinating the filling operation of shift elements 失效
    自动协调换挡元件的灌装操作的过程

    公开(公告)号:US6101438A

    公开(公告)日:2000-08-08

    申请号:US68857

    申请日:1998-05-19

    摘要: A process is proposed for automatically coordinating the filling and feeding operation of hydraulically operated and hydraulically or electronically individually commanded shift elements. The filling and feeding operation is divided into a rapid filling phase and a filling equalization phase and has as parameters at least one rapid filling period, one rapid filling pressure, one filling equalization period and one filling equalization pressure. To optimize said parameters two of the four are preset and for the other two, an optimal value is determined for the first parameter to be optimized on the basis of a preset, time-dependent pressure curve in which a pressure increase phase follows the rapid filling phase and equalization phase. To this end, based on an initial value presettable in each case, the first parameter is gradually adjusted until a speed change occurs at or before the start of the pressure increase phase. For the other parameter to be optimized, at the optimal value of the first parameter to be optimized and based on the respective presettable initial value, said parameter is gradually changed until a speed change occurs before or at least approximately simultaneously with the start of the pressure increase phase.

    摘要翻译: PCT No.PCT / EP96 / 05436 Sec。 371日期1998年5月19日 102(e)日期1998年5月19日PCT提交1996年12月5日PCT公布。 公开号WO97 / 21943 日期1997年6月19日提出了一种自动协调液压操作和液压或电子单独命令的换档元件的灌装和进给操作的过程。 灌装和进料操作分为快速灌装阶段和灌装平衡阶段,具有至少一个快速灌装周期,一个快速灌装压力,一个灌装均衡周期和一个灌装平衡压力参数。 为了优化所述参数,四个中的两个被预先设定,而另外两个,根据预设的时间依赖压力曲线确定要优化的第一参数的最优值,其中增压阶段遵循快速填充 相位和均衡相位。 为此,基于每种情况下的初始值可预置,逐渐调整第一参数,直到在增压阶段开始之前或之前发生速度变化。 对于要优化的其他参数,在要优化的第一参数的最佳值和基于相应可预置的初始值的情况下,所述参数逐渐改变,直到在压力开始之前或至少大致同时发生速度变化 增加阶段。