State and force observers based on multibody models and the indirect Kalman filter

被引:40
|
作者
Sanjurjo, Emilio [1 ]
Dopico, Daniel [1 ]
Luaces, Alberto [1 ]
Angel Naya, Miguel [1 ]
机构
[1] Univ A Coruna, Escuela Politecn Super, Mech Engn Lab, Mendizabal S-N, Ferrol 15403, Spain
关键词
Multibody dynamics; Kalman filter; State observer; Force estimation; SYSTEMS;
D O I
10.1016/j.ymssp.2017.12.041
中图分类号
TH [机械、仪表工业];
学科分类号
0802 ;
摘要
The aim of this work is to present two new methods to provide state observers by combining multibody simulations with indirect extended Kalman filters. One of the methods presented provides also input force estimation. The observers have been applied to two mechanism with four different sensor configurations, and compared to other multibodybased observers found in the literature to evaluate their behavior, namely, the unscented Kalman filter (UKF), and the indirect extended Kalman filter with simplified Jacobians (errorEKF). The new methods have some more computational cost than the errorEKF, but still much less than the UKF. Regarding their accuracy, both are better than the errorEKF. The method with input force estimation outperforms also the UKF, while the method without force estimation achieves results almost identical to those of the UKF. All the methods have been implemented as a reusable MATLAB (R) toolkit which has been released as Open Source in https://github.com/MBDS/mbde-matlab. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码:210 / 228
页数:19
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