Vector Informatik makes diagnostic tool chain available for EVs
A tool chain for the new diagnostic standard, ZEVonUDS (SAE J1979-3) introduces on board diagnostics for electric vehicles, zero emission vehicles and plug-in hybrid electric vehicles (EVs, ZEVs and PHEVs).
The SAE J1979 standard describes in detail how on board diagnostics data is read from vehicles using an external diagnostic device, or scan tool. This can be used to monitor functions in engine control units (ECUs) that influence vehicle efficiency. The monitoring functions must be available whether emissions are caused directly by an internal combustion engine or indirectly by the generation of electricity to charge a traction battery in the vehicle.
(SAE J1979-3 is a subset of the UDS-based on-board diagnostics introduced under SAE J1979-2 OBDonUDS.) According to the SAE standard and the California Air Resources Board (CARB), all ZEVs and PHEVs must support ZEVonUDS in the US market from 2028.
ZEVonUDS is being introduced to read out specific measurement data from EVs with a scan tool. This includes, for example, the battery state of health, which is used as a quantitative parameter in determining the residual value of an electric vehicle. CARB uses the SAE J1979-3 standard to record repairs on EV and PHEVs registered for sale in California.
New challenges arise for both the ECU software and the diagnostic testers, especially for startups in the ZEV field. These startups did not have to support on-board diagnostics in the past but will need to implement ZEVonUDS over a relatively short timeframe, requiring a fundamental change in the ECU software. In addition, the new standard requires new development tools for specifying, testing, and applying diagnostics, advised Vector.
The company’s integrated tool chain for the ZEVonUDS SAE standard which supports all phases of development, from specification of the relevant on board diagnostic content with CANdelaStudio, through to implementation in ECU software with MicroSAR and its validation with CANoe.DiVa, finishing with application in the diagnostic tester with Indigo.
Vector manufactures software tools and embedded components for the development of electronic systems and their networking, offering a variety of systems from CAN to automotive Ethernet.
Established in 1988, Vector tools and services are used by engineers and software developers in the automotive, commercial vehicles, aerospace, transportation, and control technology industries.
Vector is headquartered in Stuttgart, Germany and has subsidiaries in Brazil, China, France, Great Britain, India, Italy, Japan, Austria, Romania, Sweden, South Korea, Spain and the USA.
