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In this paper, we focus on the basic form of autonomous follow driving problem with one leader and one follower. A reinforcement learning based throttle and brake control approach is developed for the follower vehicle. Near optimal control law is directly learned by “trial and error” with the neural dynamic programming algorithm. According to the timely updated following state, the learned control...
This paper is concerned with the exponential stabilization problem for a class of distributed parameter systems (DPSs) described by a parabolic partial differential equation (PDE) with mobile actuators and sensors. Initially, the mobile guidance for each actuator/sensor pair is proposed based on the system performance requirement and the well-posed analysis of the DPS is given via the operator semigroup...
Space heating is dominant in energy consumption of households in France. Toshiba introduced a Home Energy Management System (HEMS) to the residential area of a newly constructed building in Lyon, France, as a part of a smart community demonstration experiment project. We have developed automatic space heating control functions that the residents in the building can freely use as they wish. This paper...
The effects of electromagnetic lossy materials such as humans, on the electromagnetic field (EMF) characteristics of an aircraft are evaluated using finite-difference time-domain analyses and experiments conducted in a reverberation chamber. This study aims to confirm the EMF reduction effect, through measurements. The results of a large-scale finite-difference time-domain analysis conducted on a...
This paper tackles the control problem of integrated translational and rotational stabilization for proximity operations of spacecraft by proposing a novel manipulator-actuated strategy. To this end, due to momentum conservation, a manipulator actuated coupled translational and rotational kinematics of the spacecraft is firstly formulated, where the joint velocity constraint and system unknown parameters...
In this paper, the stability problem of formation of multi-agents subject to failures in their communication links is addressed. The objective of the formation control problem is to maintain the inter-agent distances to be constants over time using a distributed control algorithm implemented in each agent. Previous research results showed that a distributed gradient-based control can locally asymptotically...
This study aims to design an adaptive output recurrent cerebellar model articulation controller (AORCMAC), which is embedded into the direct torque control (DTC) system of an induction motor as the speed controller. Similar to the conventional cerebellar model articulation controller (CMAC), the designed AORCMAC also has the advantages of rapid learning, simple architecture, online training, and nonlinear...
This paper presents a concise review of the novel matrix converter technology widely recognized in the last two decades attracting all scientific institutions, industrial markets, and governmental foundations towards developing it. The appealing features of the topology along with its structural characteristics are clearly highlighted. A state-of-art demonstration of the highly adopted modulation...
This paper deals with comparative analysis different control methods of the Z-source inverter (ZSI). These control methods are Simple boost control SBC, maximum boost control MBC, maximum constant boost control MCBC, and the space vector modulation SVM. The relationship of voltage gains to modulation index and the THD are analyzed in detail and verified by simulation for the same modulation index.
In the Space domain the High Level Architecture (HLA) is one of the reference standard for Distributed Simulation. However, for the different organization involved in the Space domain (e.g. NASA, ESA, Roscosmos, and JAXA) and their industrial partners, it is difficult to implement HLA simulators (called Federates) able to interact and interoperate in the context of a distributed HLA simulation (called...
The aim of this paper is to understand how closed national networks can impact the future cyber domain from the military perspective. We argue that Russia is currently manipulating the cyber domain through identified four lines of effort that may result in advantage in a form of asymmetric frontlines in cyber battlefields. Accordingly, a ‘closed network nation’ is able to force ‘open network society’...
This paper is on a connected and autonomous vehicle hardware-in-the-loop (HiL) simulator for developing automated driving algorithms. This simulator allows the user to run highly realistic hardware-in-the-loop simulation of connected and autonomous driving functions. The HiL simulator of this paper consists of a dSPACE Scalexio system which runs Carsim Real Time with Traffic and Sensors and is connected...
For two-qubit systems with a degenerate measurement operator, this paper presents a control approach to achieve rapid stabilization to a target Bell state. This approach uses two control channels where the control laws associated with these two channels are designed as a constant and a switching control law, respectively. In the control scheme, the system state space is divided into two parts: the...
Narrow pulses may appear in specific area of space vector diagram. Because of narrow pulses, switching loss and distortion of output current increase. In this paper, the region of narrow pulses in the space vector diagram is obtained. A restraint algorithm of narrow pulses based on space vector optimization allocation is proposed. In the area of narrow pulses, the sequence and the number of space...
Safe operations in the National Airspace System (NAS) require understanding the individual failure space of avionics technologies, the joint failure space as faults propagate within the distributed environment, and a framework to quantify safety. This paper focuses on the last point, in which the safety assessment framework consists of a set of safety metrics: Loss of Separation (LoS), Traffic Collision...
In the avionic domain, the development trend has moved from federated to integrated architectures, which is called Integrated Modular Avionics (IMA). The ARINC 653 standard defines the execution environment for hosting several avionic software functions within a single computing module using strict temporal and spatial partitioning. ARINC 653 was successfully implemented (e.g., Airbus A380) and achieved...
It is shown that the solution of the problem of optimizing the structure of an active control system consists in choosing its configuration in the form of successive subsystems with branching resource flows. Rational distribution of management tasks is carried out from the positions of information and aggregative-decomposition approaches.
Continuous-review inventory control problem in goods distribution networks is addressed from a control-theoretic perspective. In contrast to the earlier works concentrating on the fundamental serial and parallel-path configurations, a multi-echelon mesh topology network of suppliers, distribution centers, and retailers is considered. The external, uncertain demand may be imposed on any node in the...
The paper describes a new holonic solution for the design of generic Facility Environment Conditioning and Control Systems (HFES) based on modelling processes as environment services (EServices) and implementation in multi-agent framework. This approach allows for the customization of: data acquisition, correlation between cleanroom parameters, HVAC channel control and influencing the radiopharmaceuticals...
In this paper sliding mode controller is designed in comparison with the linear state space feedback controllers namely the pole placement controller and linear quadratic regulator to eliminate the chaotic limit cycle oscillations in Van der Pol system induced by an external sinusoidal excitation in order to avoid failure in physical structures. The controller design is based on the mathematical model...
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