This study is aimed to reveal the high sensitivity of PHEVs and BEVs utilization to real using and charging conditions in a specific region (Beijing, China). GPS loggers are adopted to collect driving data of near 10,000 km travel distance for about 4,892 trips in 2003 travel days. UFs of PHEV and BEV under various charging patterns are studied and compared. The results show that the utilization of PHEVs as well as BEVs are intensively affected by charging patterns, and constant public place charging brings more benefit compared with deploying charging infrastructures everywhere. If the CD range exceeds 100 km or AER reaches 150 km, only night charging is necessary. Cost and benefit analysis of BEV based on UF indicates AER less than 200 km is a cost-effective choice for the current Beijing passenger car travel pattern.
KEYWORDS –utility factor; plug-in hybrid vehicle; driving pattern; GPS logger; charging pattern;