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Vibration control of automotive drive system with backlash considering control period constraint

2019 Journal of Advanced Mechanical Design, Systems, and Manufacturing  
The results are compared to the control results with those obtained by the traditional discrete approximation.  ...  Then to cope with the control cycle constraint, sampled-data H2 control is applied. The servo system is constructed by applying an approximate integrator and frequency shaping.  ...  Figure 5 (a) shows the sampled-data control system, which is a digital control system to control a continuous-time plant ( ) using a discrete-time controller [ ]. ( ) and [ ] comprise a closed-loop system  ... 
doi:10.1299/jamdsm.2019jamdsm0018 fatcat:c56t3peozfgijdho6gx7l5acfm

2013 Index IEEE Transactions on Automatic Control Vol. 58

2013 IEEE Transactions on Automatic Control  
., and Shroff, N. B  ...  ., +, TAC Sept. 2013 2349-2354 Discrete time systems Bode-like Integral for Continuous-Time Closed-Loop Systems in the Presence of Limited Information.  ...  ., +, TAC Oct. 2013 2451-2464 Stabilization of Stochastic Quantum Dynamics via Open-and Closed-Loop Control.  ... 
doi:10.1109/tac.2013.2295962 fatcat:3zpqog4r4nhoxgo4vodx4sj3l4

Hierarchical hybrid control: a case study [chapter]

Datta N. Godbole, John Lygeros, Shankar Sastry
1995 Lecture Notes in Computer Science  
As our example we use the Intelligent Vehicle Highway System (IVHS) architecture proposed for vehicle platooning, a system that involves both continuous state and discrete event controllers.  ...  We consider this as an indication that the conventional tools currently in use for the design and verification of control systems may be inadequate for the design of hierarchical controllers for hybrid  ...  Acknowledgment: The authors would like to thank Farokh Eskafi, Delnaz Khorramabadi, Dr. Bobby Rao and Prof. Pravin Varaiya for helpful discussions providing insight into the problem.  ... 
doi:10.1007/3-540-60472-3_9 fatcat:nbunaqs3hzctxjr5to7aeo2w7a

Clarifying Cognitive Control and the Controllable Connectome [article]

John D. Medaglia
2018 arXiv   pre-print
In brain networks, some conceptual and lexical similarities between cognitive control and control theory offer appealing avenues for scientific discovery.  ...  However, these opportunities also come with the risk of conceptual confusion. Here, I suggest that each field of inquiry continues to produce novel and distinct insights.  ...  He additionally thanks Brian Erickson for conversations regarding control theory and systems theory, and Denise Harvey for conversations about the relationship between network control theory and cognitive  ... 
arXiv:1801.08806v4 fatcat:fha6o4ukdvfj5esulz7cgpf7sy

Process modelling for hybrid control

G. Mušič, M. Šikovc, B. Zupančič
2002 Systems Analysis Modelling Simulation  
Paper deals with modelling methods for the purpose of control of hybrid systems, a class of dynamic systems where the behaviour of interest is determined by interacting time continuous and discrete-event  ...  A discrete-event plant model is developed and a discrete controller is designed to prevent entering into a forbidden region of the state space.  ...  The control automaton and the plant interact at discrete times, where the interval between successive interaction times can vary.  ... 
doi:10.1080/716067185 fatcat:rgqkznlh5zf6pb22cuz2ptsmha

2020 Index IEEE Transactions on Automatic Control Vol. 65

2020 IEEE Transactions on Automatic Control  
., +, TAC Oct. 2020 4031-4046 Global Analysis of Synchronization Performance for Power Systems: Bridging the Theory-Practice Gap.  ...  Yin, X., +, TAC April 2020 1429-1441 Discrete systems Hybrid Control for Robust and Global Tracking on Smooth Manifolds.  ...  Linear programming A Decentralized Event-Based Approach for Robust Model Predictive Control.  ... 
doi:10.1109/tac.2020.3046985 fatcat:hfiqhyr7sffqtewdmcwzsrugva

Compact sets in the graph topology and applications to approximation of system design

Yutaka Yamamoto, Mathukumalli Vidyasagar
2011 IEEE Conference on Decision and Control and European Control Conference  
Hence we give a necessary condition and a sufficient condition, and discuss the gap between the two.  ...  In particular, it provides necessary and sufficient conditions for the continuity properties of the transfer matrices of stabilized closed-loop systems.  ...  The gap between the boundedness on D (i.e., in H ∞ (D)) and the boundedness on U (i.e., in H ∞ (U)) thus yield the gap between necessity and sufficiency here.  ... 
doi:10.1109/cdc.2011.6160309 dblp:conf/cdc/YamamotoV11 fatcat:mrwsl3h5bfc4nboj3fh7o25bou

Monotone Inclusions, Acceleration and Closed-Loop Control [article]

Tianyi Lin, Michael. I. Jordan
2022 arXiv   pre-print
While the discrete-time analysis is a simplification and generalization of the previous analysis for bounded domain, it is motivated by the aforementioned continuous-time analysis, illustrating the fundamental  ...  role that the closed-loop control plays in acceleration in monotone inclusion.  ...  Acknowledgments This work was supported in part by the Mathematical Data Science program of the Office of Naval Research under grant number N00014-18-1-2764 and by the Vannevar Bush Faculty Fellowship  ... 
arXiv:2111.08093v3 fatcat:7psjsezq3bam3gimkzoicaztpa


Jie Liu, Johan Eker, Jörn W. Janneck, Edward A. Lee
2002 IFAC Proceedings Volumes  
The individual subcontrollers are conveniently described using discrete equations, the switching logic may be expressed using state machines, the complete controller is implemented as a task in a real-time  ...  The heterogeneity of modern embedded control systems puts high demands on design and simulation tools.  ...  A basic controller model. The controller is a discrete controller with three different modes, the plant is a continuous model, and they are connected via a zero-order hold (ZOH) and a sampler.  ... 
doi:10.3182/20020721-6-es-1901.00553 fatcat:mgem66gvxnfppbrtm3kajaqmb4

Hierarchical hybrid control of automated highway systems

1997 Transportation Research Part A: Policy and Practice  
The next section contains the design of an interface between this feedback controller and the discrete event coordination layer.  ...  It begins with an overview of the AHS control system. The individual layers of the hierarchical control architecture for platooning are described, followed by a brief introduction to hybrid systems.  ...  His enthusiasm and encouragement w ere a constant source of inspiration. I am thankful for the opportunities and direction he provided.  ... 
doi:10.1016/s0965-8564(97)88286-9 fatcat:e2ucmuh2bjhvrjt3vjrjtkmqtm

Spiking Control Systems [article]

Rodolphe Sepulchre
2022 arXiv   pre-print
Spikes and rhythms organize control and communication in the animal world, in contrast to the bits and clocks of digital technology.  ...  As continuous-time signals that can be counted, spikes have a mixed nature. This paper reviews ongoing efforts to develop a control theory of spiking systems.  ...  , Ilario Cirillo, Tom Chaffey, and Tai Kirby.  ... 
arXiv:2112.03565v2 fatcat:6e2ia6dwsjbn5k5fc6qkhtshkq

TAAC: Temporally Abstract Actor-Critic for Continuous Control [article]

Haonan Yu, Wei Xu, Haichao Zhang
2021 arXiv   pre-print
TAAC adds a second-stage binary policy to choose between the previous action and a new action output by an actor.  ...  We present temporally abstract actor-critic (TAAC), a simple but effective off-policy RL algorithm that incorporates closed-loop temporal abstraction into the actor-critic framework.  ...  Acknowledgements The authors would like to thank Jerry Bai and Le Zhao for helpful discussions on this project, and the Horizon AI platform team for infrastructure support.  ... 
arXiv:2104.06521v3 fatcat:7aj5ix6g4jdwng2vh62mszkhsa

Hybrid Systems, Iterative Learning Control, and Non-minimum Phase [article]

Isaac A. Spiegel
2021 arXiv   pre-print
In summary, the three main gaps addressed by this dissertation are (1) the lack of compatibility between existing hybrid modeling frameworks and ILC synthesis techniques, (2) the failure of ILC based on  ...  The main thrust of this dissertation is to provide a boradly applicable theory of ILC for deterministic, discrete-time hybrid systems, i.e. piecewise defined (PWD) systems.  ...  This closed-form representation is shown to bridge the gap between system representation and control via the application of ILC to an example hybrid system.  ... 
arXiv:2102.13070v3 fatcat:n6bbxo2qs5ezzfppvmh4llzdwy

Toward Effective Soft Robot Control via Reinforcement Learning [chapter]

Haochong Zhang, Rongyun Cao, Shlomo Zilberstein, Feng Wu, Xiaoping Chen
2017 Lecture Notes in Computer Science  
We apply the approach to the Honeycomb PneuNets Soft Robot and demonstrate the effectiveness of the training method and its ability to produce good control policies under different conditions.  ...  We introduce a new approach to accomplish that, making two key contributions: designing an abstract representation of the state of soft robots, and developing a reinforcement learning method to derive  ...  Fig. 4 . 4 The primary difference between open-loop and closed-loop control. The closedloop control is shown above, and the open-loop control is shown below.  ... 
doi:10.1007/978-3-319-65289-4_17 fatcat:bgpuwinfknespmumcxy7sxzncm

Bilinear Control of Schrödinger PDEs [chapter]

Karine Beauchard, Pierre Rouchon
2015 Encyclopedia of Systems and Control  
We review recent developments in the eld, with discrimination between exact and approximate controllability, in nite or innite time.  ...  We also underline the variety of mathematical tools used by various teams in the last decade. The results are illustrated on several classical examples.  ...  However, closed loop controls may be computed via numerical simulations and then applied to real quantum systems in open loop, without measurement.  ... 
doi:10.1007/978-1-4471-5058-9_12 fatcat:m4rldulqezdplockuo25ielmka
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