The aim of this paper is to present a new topology of a DC-DC power converter for conditioning the current and voltages behaviors of embarked energy sources used in electrical vehicles. The fuel cells in conjunction w...The aim of this paper is to present a new topology of a DC-DC power converter for conditioning the current and voltages behaviors of embarked energy sources used in electrical vehicles. The fuel cells in conjunction with ultra-capacitors have been chosen as the power supply. The originality of the proposed converter is to use a variable voltage of the DC bus of the vehicle. The goal is to allow a better energy management of the embedded sources onboard the vehicle by improving its energy efficiency. After presenting and explaining the topology of the converter, some simulation and experiments results are shown to highlight its different operation modes.展开更多
The Simple Net-work Management Protocol (SNMP) is nowadays the key enablingmanagement technology , while Web technologies have proved to be attractive to networks and systemsmanagement. Future development in, the mana...The Simple Net-work Management Protocol (SNMP) is nowadays the key enablingmanagement technology , while Web technologies have proved to be attractive to networks and systemsmanagement. Future development in, the management domain should be 'integrated'. In this article, anembedded management model, which provides an integrated device management framework, is presented.This model consists of five functional modules including System service layer, Application layer,Data layer, Middle layer and Access layer. Each module is described, with the mutual relationincluded. Then the key points of implementation are discussed. And the system design with thedevelopment tools provided by WindRiver Systems, which enable products to be developedcost-effectively and efficiently , is described in detail.展开更多
文摘The aim of this paper is to present a new topology of a DC-DC power converter for conditioning the current and voltages behaviors of embarked energy sources used in electrical vehicles. The fuel cells in conjunction with ultra-capacitors have been chosen as the power supply. The originality of the proposed converter is to use a variable voltage of the DC bus of the vehicle. The goal is to allow a better energy management of the embedded sources onboard the vehicle by improving its energy efficiency. After presenting and explaining the topology of the converter, some simulation and experiments results are shown to highlight its different operation modes.
文摘The Simple Net-work Management Protocol (SNMP) is nowadays the key enablingmanagement technology , while Web technologies have proved to be attractive to networks and systemsmanagement. Future development in, the management domain should be 'integrated'. In this article, anembedded management model, which provides an integrated device management framework, is presented.This model consists of five functional modules including System service layer, Application layer,Data layer, Middle layer and Access layer. Each module is described, with the mutual relationincluded. Then the key points of implementation are discussed. And the system design with thedevelopment tools provided by WindRiver Systems, which enable products to be developedcost-effectively and efficiently , is described in detail.
