Brief review of open issues concerning electric vehicle testing for resolution during “Phase 1b” of the development of the light-duty vehicle emissions GTR (WLTP).
Electrified vehicles: Utility Factors, phase specific calc. formula and shortened test procedure were presented (Working Paper WLTP-05-06) by SG Co-Chair Niikuni. EU Com explained status of work on regional Utility Factor based on WLTP database. Chair raised question about overlapping actions within EU and UN/ECE projects. EU will fix proposal for utility factors in 1. Quarter of 2014 and introduce it for discussion in WLTP Phase 1B. EU Com remarked different definitions of HEV in WLTP and HD regulation and asked for review. Issue will be added to the WLTP OIL.