Portland State University

OTREC has teamed up with Portland-based Green Lite Motors to bring a 100 mile-per-gallon vehicle closer to market. OTREC researchers at the Oregon Institute of Technology will evaluate and improve the performance of the two-seat vehicle.

The project grows out of a commercialization grant from the Oregon Built Environment & Sustainable Technologies Center, or Oregon BEST. Oregon Tech researchers built a prototype model for Green Lite Motors under that grant.

"This is going to take it from a completed prototype to a refined drive system,” said Tim Miller, president and CEO of Green Lite Motors. “They’ll test the performance and efficiency of the hybrid drive system and we’ll be able to refine the software and other things that control the system and optimize its performance.”

The Oregon Tech team built a three-wheeled prototype vehicle based on the Suzuki Burgman 650 scooter platform. “It combines the best of several things,” Miller said. “You get the full enclosure and safety you have in a car but with the nimbleness and ease of parking of a motorcycle.”

Although researchers can adapt some of the auto industry’s testing methods, others don’t apply very well for such an unusual vehicle, said Oregon Tech Associate Professor James Long, the project’s principal investigator. “There aren’t many vehicles out there of this type, so we’ll be...

With its major cities clustered along 100 miles of the Willamette Valley, Oregon offers a fertile ground for electric vehicles and their limited range, George Beard of Portland State University said at a recent presentation. But Oregon’s readiness for electric vehicles doesn’t itself put one electric car on the road.

Beard, with Portland State’s Research & Strategic Partnerships, opened the Center for Transportation Studies’ spring Transportation Seminar Series with the presentation “Electric Vehicles: Are we in the Driver’s Seat?” It’s not just the population centers that make Oregon ripe for electric vehicles, Beard said. Automakers and governments have also invested heavily to deploy the technology in the state.

Oregon spends roughly $6 billion per year on gasoline, with nearly all of that money leaving the state, Beard said. Switching to a locally produced energy source could keep more of that money in the state.

Of course, predicting the future is never that simple, Beard said. Drivers unhappy with congestion won’t see that problem disappear because their cars now run on electricity. “Traffic congestion is a real killer,” he said.

“There’s no silver bullet that will solve our mobility problems,” he said. ”You’ve got to have a number of approaches for being able to move people and goods.”

For a technology that doesn’t require foreign oil, the fate of electric vehicles is intertwined with the oil cartels, Beard said. The...

Fleet managers can benefit from buying electric vehicles under certain conditions, according to a research paper by Portland State University associate professor Miguel Figliozzi. The paper marks OTREC’s first electric vehicle-related research accepted for publication in a peer-reviewed journal.

In the paper, set for publication in the Transportation Research Record, Figliozzi presents a vehicle replacement model that compares the benefits of conventional and electric vehicles under various scenarios. Incorporating electric vehicles makes the most sense for heavily used fleets when gasoline prices are high, assuming electric vehicle tax credits continue.

Until their purchase price drops, electric vehicles won’t make financial sense for fleet managers without some incentives. “Tax credits are important, especially at the beginning, given the higher price of EVs,” Figliozzi said. “The federal tax credit is roughly 20 percent of the (Nissan) Leaf’s list price and it makes a difference.”

The model presented in the paper shows that fleets will start to include a few electric vehicles with gas at $4.10 per gallon, assuming the existing tax credits. In...

Use of small electric vehicles is spreading from gated communities and college campuses onto city streets and even state highways. But should these vehicles share the road with heavier, faster ones?

In many situations, concluded Oregon State University researcher Kate Hunter-Zaworski, the answer is “no.” Hunter-Zaworski examined the vehicles, called neighborhood electric vehicles or low-speed electric vehicles in this OTREC project, co-sponsored by the Oregon Department of Transportation. Oregon regulations should limit the vehicles to roads with a speed limit of 25 mph and only allow them to cross faster roads at four-ways stops or traffic lights, she found.

In her just-published report, Hunter-Zaworski also urges transportation authorities to commit to separated transportation networks for all lower-speed transportation, including neighborhood electric vehicles. Such networks can connect neighborhoods to workplaces, schools and services with little use of busy roads.

Because neighborhood electric vehicles often look more like passenger cars than golf carts, their drivers and other road users might think they’re just as safe. But governments don’t classify neighborhood electric vehicles as passenger cars, and they aren’t subject to the same safety regulations. As a result, Hunter-Zaworski stresses the need to educate users about the risks.

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