A New Life Expectancy Assessment Method for Complex Systems With Multi-Characteristics: Case Study on Power-Shift Steering Transmission Control System

IEEE Access

Jian Shi¹  Xiao-Jian Yi²  Peng Hou²  Hui-Na Mu²  Yue-Feng Chen³ 

[1] Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China;School of Mechatronical Engineering, Beijing Institute of Technology, Beijing, China;The Seventh Research Laboratory, Beijing Special Vehicle Institute, Beijing, China;

关键词: Reliability assessment;    complex systems;    GO method;    life expectancy;    system characteristics;    prognostic and health management;   

DOI  :  10.1109/ACCESS.2019.2893216

来源: DOAJ

【 摘 要 】

Life is an important monitoring index for prognostic and health management systems. This paper proposes a new life expectancy assessment method for high-value complex systems with multi-characteristics based on goal-oriented (GO) method. First, the new life expectancy assessment method is expounded in detail, and its process is formulated. Then, the control system of power-shift steering transmission for a heavy vehicle, which is a typical mechatronics control system with multi-characteristics, such as multi-state, multi-function, and correlations, is taken as an example to evaluate its life expectancy by this paper's method. In order to verify the advantages, feasibility, and rationality of the new life expectancy assessment method, the results are compared with the results by Monte Carlo method. All in all, this life expectancy assessment method not only improves the theory of GO method, so that GO method is applied to evaluate the life expectancy of complex systems with multi-characteristics first, but also provides a new approach for life expectancy assessment of complex systems, which can take into consideration various system characteristics and only use unit life data, so that it is low evaluation cost, higher estimating efficiency and accuracy, and a more stable assessment result.

【 授权许可】

Unknown