Control Performance Analysis of Power Steering System Electromechanical Dynamics [PDF]
arXiv, 2023 Modern power steering systems employ an electric motor drive system to provide torque assistance to the driver. The closed-loop mechanical system dynamics that impact stability, performance and steering feel are significantly impacted by the electrical dynamics of the actuator depending on the structure and tuning of the motor torque controller.
arxiv
Preconditioners for state constrained optimal control problems with Moreau-Yosida penalty function [PDF]
, 2012 Optimal control problems with partial differential equations as constraints play an important role in many applications. The inclusion of bound constraints for the state variable poses a significant challenge for optimization methods.
Bangerth +40 more
core +1 more source
Control of quantum transmission is trap free [PDF]
Canadian Journal of Chemistry, 92 (2014), 157-159, 2014 We consider manipulation of the transmission coefficient for a quantum particle moving in one dimension where the shape of the potential is taken as the control. We show that the control landscape---the transmission as a functional of the potential---has no traps, i.e., any maxima correspond to full transmission.
arxiv +1 more source
Controller Tuning for Active Queue Management Using a Parameter Space Method [PDF]
arXiv, 2020 In recent years, different mathematical models have been proposed for widely used internet control mechanisms. Simple low order controllers (such as PID, and Smith predictor based linear controllers that are easy to implement) are desired for network traffic management. In order to design such simple controllers for Active Queue Management (AQM), delay
arxiv
, 2019 Recent years have seen a flurry of activities in designing provably efficient nonconvex procedures for solving statistical estimation problems. Due to the highly nonconvex nature of the empirical loss, state-of-the-art procedures often require proper ...
Chen, Yuxin +3 more
core +1 more source
Shaping Nonlinearity in Reset Controllers for Precision Motion Systems [PDF]
arXiv, 2022 The precision motion industry has an ever-increasing demand for faster, more precise and more robust controllers. From the perspective of frequency domain and loopshaping technique, this demand has pushed the linear controllers to their inherent limits, namely, the waterbed effect and Bode's phase-gain relationship.
arxiv
Preface to the Special Issue on “Control, Optimization, and Mathematical Modeling of Complex Systems” [PDF]
, 2022 Mikhail Posypkin +2 more
openalex +1 more source
Quantum measurement and feedback control [PDF]
, 2007 In this paper, an overview of research in quantum control is presented. Examples of work in the first theme include numerous applications of semi-definite programming and relaxation methods in quantum information theory.
Bouten, Luc +4 more
core
Controllability of 3D incompressible Euler equations by a finite-dimensional external force [PDF]
arXiv, 2008 In this paper, we study the control system associated with the incompressible 3D Euler system. We show that the velocity field and pressure of the fluid are exactly controllable in projections by the same finite-dimensional control. Moreover, the velocity is approximately controllable. We also prove that 3D Euler system is not exactly controllable by a
arxiv
Mathematical model stabilization control of a robot due to the delay of the control signal [PDF]
arXiv, 2015 Consider the question of building a system of commands remotely controlled robot that can perform motion stabilization in the presence of a constant delay of the control signal.
arxiv