Electronic control units (ECUs) in vehicles are interconnected with each other. Controller area network (CAN) is one of standards for in-vehicle networks and is widely employed. However, much more weight and space of wiring harness among CAN devices have been required as upgrading higher-performance networks. In this paper, we propose power over CAN (PoCAN), which is an implementation method of power over data lines (PoDL) under the review in IEEE P802.3bu, for twisted-pair (TP) cables among CAN devices to remove power lines. Unipolar non-return-to-zero (NRZ) line codes are employed in CAN and include mainly direct current (DC) component in the signals so that power superposed unipolar NRZ codes will not be suitable for PoDL. Bipolar alternate make inversion (AMI) and NRZ line codes are exploited for PoCAN because AMI-NRZ codes do not include DC component. The waveforms of PoCAN are analyzed in bus networks complied by a CAN standard with an analog mixed-signal (AMS) simulator. Moreover, experimental trials are conducted to evaluate frame transmission of PoCAN. The simulation and experimental results show that the proposed PoCAN can achieve the simultaneous transmission of data and DC power in one-pair TP cables.


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    Titel :

    Poster: Power over data lines for CAN using AMI code


    Beteiligte:


    Erscheinungsdatum :

    2016-12-01


    Format / Umfang :

    291178 byte





    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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