Affiliation:
1. School of Mechanical and Electrical Engineering, China University of Mining and Technology, Xuzhou, China
Abstract
Rigorous model-based design and semi-active control for hydro-pneumatic suspension (HPS) of the mining dump truck play an important role in providing superior driving characteristics such as ride comfort. In this paper, the investigation is carried out on a new control algorithm of semi-active suspension systems, namely, back propagation-active disturbance rejection control (BP-ADRC), supporting the driving characteristic ride comfort, and the technique is adopted in accordance with the co-simulation of MATLAB/Simulink and ADAMS. Besides, the model and controller used in the study including the semi-active HPS model, multi-body dynamic model, three-dimensional road model, and BP-ADRC controller are described and the vehicle response results are discussed which are obtained at the velocity of 20, 30, and 40 km/h on the time ranging from 10 s to 50 s, respectively. The results show that compared to passive HPS, both ADRC and BP-ADRC semi-active HPS are able to reduce vibration acceleration significantly, of which BP-ADRC reduces more. The maximum reduction rates of the semi-active HPS can reach 20.27% and 18.81% under random and impulsive excitation, respectively. The data illustrate that the semi-active HPS based on BP-ADRC control can significantly improve the ride comfort of the mining dump truck.
Funder
Funded by the Graduate Innovation Program of China University of Mining and Technology
Funded by the Postgraduate Research & Practice Innovation Program of Jiangsu Province
National Natural Science Foundation of China