
A few final questions from my interview with Frank Weber, Chevy Volt/E-Flex vehicle line executive:
Do you have or are you working on E-Flex simulation models for other sizes of vehicles besides the Volt?
Before we get the team up off the track in thinking too much about the expansion of E-Flex, the focus is clearly to get as fast as possible the Volt on the road. While we do this we think about what is the smartest was of expanding the architecture and the propulsion system. The natural thing that you would consider is looking into the mid-size segment or the small segment, where you have a lot of architectural similarity where it would be easy to take an E-Flex system into those architectures, before you start thinking about putting it into SUV’s.
To go into those larger and heavier vehicles you would have to reconfigure how the architectural components are laid out.
Considering the new potential CAFE standards of 35 mpg and the fact that the Volt can drive without gas, how does GM expect to see the Volts fuel efficiency calculated?
Unfortunately there is no current regulation in the U.S. that is properly reflecting the EV range of a Volt. This means we have with all authorities a discussion ongoing what is the proper label value of the Volt. We’ve said it from the beginning. This is a clear must requirement to make a success of the program is to make the authorities understand the EV capability and quickly develop a cycle for plug-in electric vehicles that is available in the 2010 timeframe, to give those vehicle the right label.
We are working with all authorities because as you know this is a tricky intense process in setting up those regulations and we are currently working with them so that everybody understands the concept. This is very important and is currently happening while we are developing this program.
The Volt will have a significant role in the CAFE discussion.
Since the EV-1 had a very low CD (coefficient of drag) are you using the knowledge you gained with that vehicle in redesigning the Volt?
Absolutely. We have a long history of aerodynamic performance within the organization (GM). We have many activities, also in Europe, and this is all coming together now. I think that the advantage is for the Volt we have said from the beginning the aerodynamic performance is really key. When you work it from the architecture of the vehicle down to the hardpoints of design and into the finished surface as we have now. We have had and will continue to have enough time to work into all the various details.