Since 1996, the electronic control introduced during the 1980s and 1990s has been systematically developed into networks. The CAN interface has emerged in accordance with the SAEJ1939 standard. Nowadays, the driver's position on buses and coaches has become the technological and ergonomic nerve centre of these networks. Screens and controls are integrated within the dashboard or steering wheel to allow dialogue between vehicle and driver. In future, standardisation of CAN application protocols will provide the freedom to configure additional equipment on buses. Together, the integration of navigation and communication units and remote diagnostic and incident management possibilities are opening up fresh perspectives both for operators as well as for drivers and passengers. Expanded system functions will reduce vehicle immobilisation times and increase comfort and safety at less cost. By using modular electronic units and harnessing assorted advantages during assembly and maintenance, it is conceivable that savings of the order of 10 to 40% will be made while preserving current levels of functionality. Electronic installations have largely replaced conventional electrical systems. The future promises to bring us greater integration, optimised networking between subsystems and international standardisation of protocols and interfaces, all achieved in synergy with the automobile industry.
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