News Column

Chevy Malibu: Diesel Hybrid Muscle Car

May 27, 2014

Katherine Long, The Seattle Times

May 24--On the outside, it's a basic, affordable, midsized Chevy Malibu.

But on the inside it's a hybrid like no other, with two separate engines -- one biodiesel, the other electric -- that together give it the muscle of, well, a muscle car, not the faint and tentative speed of some hybrids.

For the past three years, a team of University of Washington students has designed, planned, tested, rebuilt, rewired and re-engineered the innards of the General Motors car.

Last week the team showed it off at Denny International Middle School, where sixth-graders in teacher Ben Evans' science class swarmed around the car parked in front of the school, and peppered UW students Ryan Mallory and Jake Garrison with a hundred questions.

How much could you sell it for? How long did it take to make it? What's that red button? What if it doesn't work?

How did you get that big sticker on the car? Why is there a fire extinguisher inside?

What are those wires for?

Could it charge your phone?

"It's fantastic," said sixth-grader Asli Edey. "I think it's going to be my dream car."

The Malibu hybrid conversion is part of a collegiate competition, EcoCAR 2, sponsored by General Motors and the U.S. Department of Energy. The UW is one of just 15 universities in the U.S. and Canada selected to participate.

The Malibu has two separate engines: the biodiesel engine in the front of the car, which drives the front wheels; and the 250-horsepower electric motor in the rear of the car, powered by an 800-pound battery pack.

This week, the Malibu will be shipped on a flatbed truck to Michigan for further testing. GM will pick a winner, and the hybrid cars will then be trucked to Washington, D.C., where students will talk to industry leaders about their experiences.

"I think our team's on track to do pretty well this year," said UW mechanical-engineering student Trevor Crain, team project leader. In year two of the competition, the UW team came in fourth overall and won a top award for best energy consumption and lowest emissions.

For all of its success, the Malibu is a learning tool, not a vehicle that could one day go into production. The point of the competition is to train students at universities across the country how to design the cars of the future.

Graduates of the EcoCAR competitions "are very experienced, very professional and can tackle really difficult problems," Crain said.

For those who compete, being part of the team is often a direct track to good jobs in the auto industry. Several recent UW graduates who were part of the EcoCAR 2 team are now at GM and Tesla, the California company that manufactures high-end electric cars.

As part of the competition, GM supplied each of the schools with a car, as well as proprietary software and other equipment needed for the design work that is valued at $50 million. But the actual parts that went into the car -- including the battery pack and two new engines -- probably totaled about $200,000, Garrison said.

In recent weeks, the Malibu's unremarkable silver paint job was replaced with a huge, car-sized purple sticker that was bonded with heat to the car's exterior, Garrison said. It includes the names of the sponsors and, on the hood, the names of all the students who participated in the project.

The car's electric motor has a range of about 40 to 50 miles, and it can power the car on its own. The diesel kicks in when battery juice is running low, or when the driver needs extra speed or wants the power of all-wheel drive, Crain said.

It's known as a parallel through-the-road hybrid because the front and back wheels are not connected through a drive train; the car's two ends are, in effect, connected by the road it drives on.

"We try to show that if you add hybrid technology, you can make it more high-performance," Crain said. The car can go from 0 mph to 60 mph in 7.4 seconds -- about a second faster than a Malibu with a standard gasoline engine, even though the UW Malibu is hauling an extra 800 pounds of batteries.

This fall, another three-year competition to build the best hybrid car begins again. It's dubbed EcoCAR 3, and the UW already has been selected to participate. The stock car for the next competition will be a bit of an upgrade from the Malibu: It's the sporty Chevy Camaro.

And the Malibu? After the competition it will return to the UW, where students plan to use it for research, Crain said.

Katherine Long: 206-464-2219 or klong@seattletimes.com. On Twitter @katherinelong.

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(c)2014 The Seattle Times

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Original headline: Innards of this Chevy Malibu are unlike any other


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Source: (c)2014 The Seattle Times


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