Editing Vehicle bus (section)

{{Short description|Communications network for vehicle components}}
{{For|the type of vehicle|bus}}
{{multiple issues|
{{one source|date=January 2013}}
{{refimprove|date=January 2013}}
}}

A '''vehicle bus''' is a specialized internal [[communications network]] that interconnects components inside a [[vehicle]] (e.g., automobile, bus, train, industrial or agricultural vehicle, ship, or aircraft). In electronics, a bus is simply a device that connects multiple electrical or electronic devices together. Special requirements for vehicle control such as [[Assurance (computer networking)|assurance]] of message delivery, of non-conflicting messages, of minimum time of delivery, of low cost, and of [[Electromagnetic field|EMF]] noise resilience, as well as redundant routing and other characteristics mandate the use of less common networking protocols. Protocols include [[Controller Area Network]] (CAN), [[Local Interconnect Network]] (LIN) and others. Conventional computer networking technologies (such as [[Ethernet]] and [[TCP/IP]]) are rarely used, except in aircraft, where implementations of the [[ARINC 664]] such as the [[Avionics Full-Duplex Switched Ethernet]] are used. Aircraft that use [[Avionics Full-Duplex Switched Ethernet]] (AFDX) include the [[Boeing 787]], the [[Airbus A400M]] and the [[Airbus A380]]. Trains commonly use [[Ethernet Consist Network]] (ECN). All cars sold in the United States since 1996 are required to have an [[On-Board Diagnostics]] connector, for access to the car's electronic controllers.