Current Issue : October - December Volume : 2012 Issue Number : 4 Articles : 3 Articles
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....
Intelligent transport system (ITS) has large potentials on road safety applications as well as nonsafety applications. One of the\r\nbig challenges for ITS is on the reliable and cost-effective vehicle communications due to the large quantity of vehicles, high\r\nmobility, and bursty traffic from the safety and non-safety applications. In this paper, we investigate the use of dedicated shortrange\r\ncommunications (DSRC) for coexisting safety and non-safety applications over infrastructured vehicle networks. The main\r\nobjective of this work is to improve the scalability of communications for vehicles networks, ensure QoS for safety applications,\r\nand leave as much as possible bandwidth for non-safety applications. A two-level adaptive control scheme is proposed to find\r\nappropriate message rate and control channel interval for safety applications. Simulation results demonstrated that this adaptive\r\nmethod outperforms the fixed control method under varying number of vehicles...
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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