Nowadays, as mechatronic and electronic systems have found their way into vehicles, the technological\r\nknowledgebase of traditional remanufacturing companies erodes rapidly and even the industrial principle of\r\nremanufacturing is at risk. Due to the fact that modern cars incorporate up to 80 of these mechatronic and\r\nelectronic systems that are communicating with each other e.g. via the vehicle controller area network (CAN),\r\nremanufacturing of these automotive systems requires innovative reverse engineering knowhow, methodological\r\ninnovations and new technologies, especially focusing on the tasks testing and diagnostics of systems and their\r\nsubassemblies. The European research project ââ?¬Å?CAN REMANââ?¬Â, conducted by Bayreuth University in cooperation with\r\ntwo other universities and eight industrial partners, focuses on these needs in order to enable companies to\r\nremanufacture modern automotive mechatronics and electronics with innovative reverse engineering skills as well\r\nas to develop appropriate and affordable testing and diagnostics technologies.\r\nIn order to operate and test the mechatronic device with CAN interface outside the vehicle environment, an\r\nappropriate simulation of the vehicle network and all connected sensors of the device under test (DUT) is essential.\r\nThis implies an electrical analysis of the connectors of the DUT, a content-related analysis of the CAN-bus, a sensor\r\nhardware simulation and a CAN-bus simulation.\r\nAll electrical measurements and results were taken using conventional multimeters or oscilloscopes. The CAN-bus\r\nanalysis and simulations were conducted using the Vector Informatics software tool ââ?¬Å?CANoeââ?¬Â (Version 7.1) and a\r\nsuitable CAN-bus hardware, e.g. the CANcardXL and the IOcab8444opto. All hardware simulations were executed\r\nwith a conventional wave form generator or a microcontroller evaluation board (Olimex AVR-CAN) and an\r\nappropriate electric setup.\r\nIn order to initially readout the failure memory and to investigate the diagnostic communication of the DUT,\r\ngarage testers such as ââ?¬Å?Bosch KTS 650ââ?¬Â or ââ?¬Å?Rosstech VAG-COMââ?¬Â were used.\r\nThe results of the project are application-orientated methods, test benches and skills for remanufacturing\r\ncompanies to find out the working principles of the CAN-bus communication between automotive mechatronic\r\nand electronic systems within vehicles.\r\nThe knowhow presented in this article enables remanufacturing companies to remanufacture modern automotive\r\nmechatronic and electronic systems which are communicating via the CAN-bus and similar communication types.
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