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On the basis of the establishment of articulated truck model and hydraulic steering system model, this paper establishes optimal direct yaw moment control strategy based on the main and auxiliary control variables. The main control variables are side slip angle and yaw rate of vehicle, and the auxiliary control variable is the articulated angular acceleration. The handling and stability of articulated...
An anisotropic swarm model with a new attraction and repulsion function is considered in this paper. It is shown that, when the coefficient matrix is symmetric, the swarm members will aggregate and eventually form a cohesive cluster around the swarm center. Moreover, the swarm system is completely stable and the swarm center keeps still for all time. Numerical simulations agree well with the theoretical...
In this paper, a new 5-DOF spacecraft simulator which is a frictionless environment simulation platform is described. The simulator has two translational degrees of freedom and three rotational degrees of freedom. It is used for experimental validation of various spacecraft control strategies on the ground. A set of three inertial wheels and a set of sixteen cold-gas thrusters are used as primary...
The friction coefficient identification of dry clutch is a precondition for precise model-based dry clutch control. Recursive Least Square with forgetting factors is adopted to identify the friction coefficient of dry clutch during vehicle starting-up process. Because the accuracy of the engine damp coefficient affects friction coefficient identification of the clutch, it is necessary to identify...
The modeling and control problem is investigated for cold rolling mill system. Firstly, we establish a hydraulic automatic gauge control (HAGC) model for a practical cold rolling mill system. The new model is with mismatched uncertainties and time delay. Then, an extended state observer (ESO) based predictive control strategy for HAGC system is developed. We propose a new ESO to estimate the unmeasured...
This paper discusses some aspects of brush control techniques for a concept of a novel semi-autonomous road sweeper. One of the main difficulties of developing such a robot sweeping vehicle is that the general characteristics of the sweeping brushes are not well known. This study employs a FE model that calculates the brush deformation to assist the controller design. Using the FE model some useful...
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