SAE launches new standards doc to rate power of electrified vehicles

SAE International in late February, 2023, announced the release of a new standards document to provide a common testing procedure to rate the maximum power of electrified powertrains. The new J2908 standard, titled “Vehicle Power and Rated System Power Test for Electrified Powertrains,” is a voluntary procedure to make it easier to measure and compare the maximum power of electrified powertrains used in hybrid-electric vehicles (HEVs), plug-in hybrid-electric vehicles (PHEVs) and battery electric vehicles (EVs) or fuel-cell electric vehicles (FCEVs).

The J2908 standard establishes the framework for testing, data post-processing and reporting of SAE system power for an electrified vehicle. The SAE system power is defined as the sum of the mechanical shaft powers of all powertrain components used for propulsion during peak wheel power. It is a voluntary procedure, said Michael Duoba, research engineer, Argonne National Laboratory, and sponsor of the document.