Other Vehicle Electronics Standards

Other Vehicle Electronics Standards cover rotating electrical machines (motors) for rail and road vehicles, starter motors, technical documentation of electrical and electronic systems, lamps, switching devices, and other vehicle electronics standards. This collection of topics serves to complement the previous categories, bringing to light smaller areas of standardization that do not normally receive as large of a focus.

ISO 17458-4:2013

Road vehicles - FlexRay communications system - Part 4: Electrical physical layer specification

ISO 17458-4:2013 specifies the electrical physical layer for FlexRay communications systems. The electrical physical layer for FlexRay is designed for time-triggered networks with data-rates up to 10 Mbit/s to connect automotive electronic control units (ECUs). The medium that is used is dual wires. Signalling on the bus is accomplished by asserting a differential voltage between those wires. Topology variations range from point-to-point connections via linear passive busses and passive stars up to active star topologies. ISO 17458-4:2013 includes the definition of electrical characteristics of the transmission itself and also documentation of basic functionality for bus driver (BD) and active star (AS) devices.

ISO 17458-5:2013

Road vehicles - FlexRay communications system - Part 5: Electrical physical layer conformance test specification

ISO 17458-5:2013 specifies the conformance test for the electrical physical layer of the FlexRay communications system. ISO 17458-5:2013 defines a test that considers ISO 9646 and ISO 17458-4. It provides a standardized way to verify whether FlexRay Bus Driver and Active Star products are compliant to ISO 17458-4. The primary motivation is to ensure a level of interoperability of FlexRay Bus Drivers and Active Stars from different sources in a system environment. ISO 17458-5:2013 provides all necessary technical information to ensure that test results will be identical even on different test systems, provided that the particular test suite and the test system are compliant to the content of ISO 17458-5:2013.

ISO 20653:2013

Road vehicles - Degrees of protection (IP code) - Protection of electrical equipment against foreign objects, water and access

ISO 20653:2013 applies to degrees of protection (IP code) provided by enclosures of the electrical equipment of road vehicles. It specifies the following: Designations and definitions of types and degrees of protection provided by enclosures of electrical equipment (IP codes) for the: protection of electrical equipment within the enclosure against ingress of foreign objects, including dust (protection against foreign objects); protection of persons against access to hazardous parts inside the enclosure (protection against access); protection of electrical equipment inside the enclosure against effects due to ingress of water (protection against water). Requirements for each degree of protection. Tests to be carried out in order to confirm that the enclosure complies with requirements of the relevant degree of protection.

ISO 21848:2005

Road vehicles - Electrical and electronic equipment for a supply voltage of 42 V - Electrical loads

ISO 21848:2005 describes the electrical loads that can affect electric and electronic systems and components of road vehicles for a supply voltage of 42 V which may be used in a multiple voltage electrical system. In addition it specifies the tests and resulting requirements, test equipment accuracy being agreed upon between the vehicle manufacturer and the supplier. This International Standard also provides design guidance for the interaction of 42 V with other system voltages.