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 EPE 2007 - Subtopic 16-5 - DS: Automotive 
 You are here: EPE Documents > 01 - EPE & EPE ECCE Conference Proceedings > EPE 2007 - Conference > EPE 2007 - Topic 16: 'Electrical systems in aerospace, space, surface and marine transport' > EPE 2007 - Subtopic 16-5 - DS: Automotive 
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   A new FPGA based control system for electrical propulsion with electronic differential 
 By CERQUEIRA Nuno Miguel; SOARES José Ricardo; CASTRO Ricardo Pinto De; ARAÚJO Rui Esteves; OLIVEIRA Hugo Santos 
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Abstract: In this paper we present a new fully integrated control system in a System-on-Chip (SoC) suitable to implement the controller for a Neighbourhood Electric Vehicle (NEV) based on FPGA (Field Programmable Gate Array) technology. A prototype has been designed specifically to meet the requirement of low cost and it contains all of the active functions required to implement the electronic differential. The controller uses Field Oriented Control (FOC) techniques with offline parametric identification of the motors to enhance its performance. A PC based user interface allows easy controller configuration, data acquisition and performance analysis. The functionality of the electronic differential is verified through experiments with a bench test equipment equivalent to the actual system. The experimental results show that the proposed controller is able to follow the reference torque and curvature angle with a good dynamic and relatively low error.

 
   EMI CHARACTERIZATION AND COMMUNICATION ASPECTS FOR POWER ELECTRONICS IN HYBRID VEHICLES 
 By SERRAO Vittoria; LIDOZZI Alessandro; SOLERO Luca; DI NAPOLI Augusto 
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Abstract: This paper deals with the EMI (Electromagnetic Interference) characterization and the communication aspects for the power electronics hardware devoted to control the traction power flows in hybrid vehicles. The power conversion system related to the particular vehicle generation and storage units will be analyzed from both the functional (control and communication) and EMI point of view. The control structure and the communication architecture will be described and the use of a bus-multiplexed structure for the communication interface between the power converters has been investigated. In particular the CAN (Controller Area Network) standard has been selected in order to evaluate the achieved improvement in efficiency. An extensive experimental test campaign (conducted emission) is carried out in order to evaluate the overall EMI performance of the single power converter and, in particular, to estimate which is the contribution to the system emission levels due to auxiliaries as the control platform and the related electronic boards (measures acquisition, filtering, driving circuits and power supply distribution network).

 
   Power Electronic Converters Distribution in HOST Hybrid Propulsion System 
 By SOLERO Luca; LIDOZZI Alessandro; SERRAO Vittoria; CRESCIMBINI Fabio 
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Abstract: This paper deals with the design of power electronic converters to be used in the hybrid propulsion system of a multi-functions vehicle. A modern hybrid vehicle arrangement consists of one internal combustion engine, one or more electrical machines, storage systems based either on batteries or ultracapacitors; a number of power electronic converters are then required to control the power flows among generation unit, storage unit and traction drives. In this paper, prototypes of the power electronic converters being used on-board the HOST (Human Oriented Sustainable Transport mean) vehicle are proposed, and description of the converters' control loops is given for the on-board power distribution system.