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During the last years, DaimlerChrysler do Brasil (DCBR) has been moving ahead in order to research and to develop an Automatic Vehicular Location System (AVL System) due to the increase of the security through blocking and tracking devices, monitoring and mainly, logistic solutions that includes maintenance and fleet management. DaimlerChrysler do Brasil faced the necessity to prepare a test that could reflect a real situation, not only to try the system's features regardless communication and management of transmitted data, also however, to ensure the durability and reliability of the on-board vehicles equipment focusing on Brazilian Infrastructure. The objective of this paper is to describe the methodology, used tools and acquired results obtained by DCBR improvement test of his AVL System, throughout the “9o Rally Internacional dos Sertões - 2001”.

The conventional and fixed maintenance intervals planned according to the vehicle application group (rough operating condition, short haul and long haul) are substituted by computed intervals, which correspond to the real components wear. The system carries out the prognosis of different services for periodic maintenance, indicating in the instrument cluster the dates when the services should be carried out as well as the remaining distance for carrying out each service. The system allows to join all different maintenance dates to only one date, improving the vehicle programming. The FSS totally integrated with CAN (Controller Area Network) line through a telematic system can centralize all maintenance prognoses in the transport company. Using this system, the user can reduce all documents and maintenance vehicle controls.