Passenger cars
Nearly all carmakers in Europe, America, and Far East use CAN high-speed networks (e.g. 500 kbit/s) in their power-engine systems, which are compliant to the ISO 11898-2 physical layer standard. Additionally most European passenger cars are equipped with CAN-based multiplex systems. These multiplex networks link door and roof control units as well as lighting and seat control units. Some of the multiplex networks are compliant to the fault-tolerant physical layer standard (ISO 11898-3). Some others use the high-speed physical layer with low-power functionality, which is standardized in ISO 11898-5.
Some passenger cars provide a CAN-based diagnostic interface that connects the scanner tool in the garage with the in-vehicle networks. This interface may be based on the ISO 16765 standard (Diagnostics on CAN including Keyword 2000 over CAN), and the ISO 14229-1 standard (Unified Diagnostic Services) or on-board diagnostic standard (ISO 15031).
Another application of CAN-based networks in passenger cars is to connect infotainment devices. There are some proprietary solutions, but also the IDB-C network. The SAE defined the IDB-C application profile in the ITS Data Bus series of specifications (SAE J2366). IDB-C is based on high-speed CAN (29-bit identifiers) with a bit-rate of 250 kbit/s.
The different CAN-based IVNs are connected via gateways. In many system designs, the gateway functionality is implemented in the dashboard. The dashboard itself may equipped with a local CAN network connecting the different displays and instruments.
