Autoblog

Leaving no stone unturned when looking at a more efficient future, Toyota has teamed up with the Univerisity of California to further study the viability of plug-in hybrid versions of the Prius. As part of the research, Toyota donated two prototype Prius models modified for plug-in operations to the Institute of Transportation Studies at UC Berkeley and the Advanced Power and Energy Program at UC Irvine. The two university programs will study ways to measure and test fuel economy and emissions, including upstream emissions from power generation, as well as what sacrifices people are willing to make, how much they'd actively seek to plug their cars in, and what type of range and charge time they're willing to live with.

The current Prius provides a good base for the research, and didn't change drastically to pull PHEV duty. There's a larger battery pack occupying the space normally reserved for the spare tire, and the powertrain controller allows more frequent EV-mode operation, as well as running on battery to about 60 mph. The battery pack size will shrink as new technologies come online, and the limited (7 miles) range in EV mode will likely also increase. Quite an about-face from the days not too long ago when Toyota was vociferously denouncing PHEV conversions of their cockroach-shaped four-wheeled eco-statement.

Hit the jump for Toyota's press release.