Search

In this paper, a new method for dynamic wireless power transfer is presented. It is proposed that to reduce the size and weight of the pickup which is fixed on the bottom side of the electric vehicle chassis, and to increase the efficiency, a multi transmitter wireless power transfer system driven by an expandable N-Legged Converter (NLC) can be used. Along with these features, a uniform transferred power and efficiency profiles, simplicity of the converter and its modulation method are other remarkable features of this method. To show the feasibility of the proposed method, magnetics of the system is simulated in Maxwell and the converter is modelled in MATLAB. © 2018 IEEE.

In this paper we present the model based design optimization on a micromechanical system which is described by a VHDL-AMS behaviour model, based on the Cosserat theory. The application is a gyroscope test structure developed by ST MICROELECTRONICS. The schematic of the microactuator is built tip front component models developed in Lancaster within previous work. The equations of motion of the beam model were derived using Cosserat theory. The rigid body model wits adjusted to capture the behaviour of the central disk with comb-drives of the microactuator target structure. Within the model based design optimization system MODOS developed at the UNIVERSITY OF BREMEN a model optimization and a model based design optimization were performed. In this report we represent the theoretical background of the modeling and optimization process and publish the received results.

In this paper we present the model based design optimization on a micromechanical system which is described by a VHDL-AMS behaviour model, based on the Cosserat theory. The application is a gyroscope test structure developed by ST MICROELECTRONICS. The schematic of the microactuator is built tip front component models developed in Lancaster within previous work. The equations of motion of the beam model were derived using Cosserat theory. The rigid body model wits adjusted to capture the behaviour of the central disk with comb-drives of the microactuator target structure. Within the model based design optimization system MODOS developed at the UNIVERSITY OF BREMEN a model optimization and a model based design optimization were performed. In this report we represent the theoretical background of the modeling and optimization process and publish the received results.

In this paper we propose a layered software architecture for Circuit-CAD (CCAD) with uncertainties handling capabilities, based on the utilization of heterogeneous software agents. The need of such approach comes from the increasing requests for integration-cooperation features in modern CCAD applications, whose simulation tasks are asked to go far beyond the mere and rigid application of presumed general purpose numerical methods. Indeed, solving some hard problems, like Tolerance and Sensitivity Analysis (TSA) for strongly non linear circuits in presence of large parameters' uncertainties, benefits much more from a clever preliminary choice of the best problem-tuned numerical method rather than from a blind number crunching approach. The software architecture we propose in this paper is built by intermediate and low level agents: Dbots (Domain Software Robots), operating at decision level, and Wbots (Working Software Robots), operating at computation level. We define the nature of such agents and describe their de-coupled manner of interaction, which enables implementing dynamic adaptive resolution schemes for given CCAD tasks. Furthermore, we present an example of use of the proposed architecture utilizing Java to specify agents as active objects. Some applications of the new strategy to TSA circuits-related problems are presented