The invention realizes stepless variation of auto transmission ratio, and resolves the problem of weak transmission force of the present variable speed case at the same time.
该发明实现汽车传动比的无级变化，同时又解决了现有无级变速器传动力弱的缺点。
In case of the noise statistic being unknown or variable, adaptive Kalman filter is used to get drift speed of each axle at each test position, and then drift parameter is calculated.
在噪声统计未知或时变的情况下，每个位置采用自适应卡尔曼滤波解算出平台各轴的漂移角速率，并在此基础上辨识出漂移参数。
Introduces the working-case and the controlling-process of the mine lift, analyses the principle of variable frequency adjust speed and energy saving in terms of theory.
介绍了煤矿提升机的工作情况和控制过程，从理论上分析了提升机变频调速和节能的基本原理。
Because of the wind speed measurement and accurate system model are hard to obtain, so it's difficult to achieve good results by using the traditional pid controller in case of rapidly variable wind.
由于风速测量的不准确性以及很难获得风力发电系统的精确模型，故采用传统的PID控制器难以在风速快速变化的情况下实现良好的控制效果。
Because of the wind speed measurement and accurate system model are hard to obtain, so it's difficult to achieve good results by using the traditional pid controller in case of rapidly variable wind.
由于风速测量的不准确性以及很难获得风力发电系统的精确模型，故采用传统的PID控制器难以在风速快速变化的情况下实现良好的控制效果。
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