Design and realization of a smart battery management system

Battery management system (BMS) emerges a decisive system component in battery-powered applications, such as (hybrid) electric vehicles and portable devices. However, due to the inaccurate parameter estimation of aged battery cells and multi-cell batteries, current BMSs cannot control batteries optimally, and therefore affect the usability of products. In this paper, we proposed a smart management system for multi-cell batteries, and discussed the development of our research study in three directions: i) improving the effectiveness of battery monitoring and current sensing, ii) modeling the battery aging process, and iii) designing a self-healing circuit system to compensate performance variations due to aging and other variations.published_or_final_versio

Insight of Direct Search Methods and Module-Integrated Algorithms for Maximum Power Point Tracking (MPPT) of Stand-Alone Photovoltaic Systems

Part 12: DATICSInternational audienceBy detection of input signal, Maximum Power Point Tracking (MPPT) algorithms are used to maximize the potential output power. Since Perturbation and Observe (P&O) method was first applied in a Photovoltaic (PV) system, a myriad of MPPT algorithms has been proposed. With the pros and cons of various MPPT algorithms, a detailed analysis of several typical direct search and module-integrated MPPT algorithms is presented in this paper. Directions of future work for implementing new MPPT algorithms are also outlined

An Efficient History-Based Routing Algorithm for Interconnection Networks

Abstract-Network-on-chip (NoC) approach has been proposed as a solution to the complex on-chip communication problems by scaling down the concepts of macro-and tele-networks, and applying them to the system-on-chip domain. In this paper, an efficient routing algorithm for two-dimensional mesh networkon-chips is presented. The algorithm, which is based on OddEven turn model, is called History-Based Odd-Even (HB-OE). It is more fair and efficient in load balancing compared to the typical Odd-Even turn model algorithm. In this routing, based on the location of the current node, the network is divided into four sub-networks and the history of each sub-network regarding the direction of the last forwarded packet is saved using a flag register. We further enhance this routing by using a technique named Free-Channel to check the availability of the output ports as well as their history. To assess the latency of the proposed algorithm, transpose traffic profile for packet injection is used. The simulation results reveal that the HB-OE + Free-Channel routing policy can achieve lower latency compared to the conventional Odd-Even turn model with negligible area overhead