Gm Volt

[jamz]

GM Released a Volt Teaser image today, as well as an press release regarding an E-Flex specific design studio inside GM. This design studio is specifically focused on making the Volt's design aerodynamic and bringing a production capable design to market. Overall the Volt retains it's distinctive look, but is toned down a bit to acheive the desired aerodynamic properties. Overall it follows a similar thought as GMI did with it's RIA Volt HERE but tones things down a bit more and removes the front air vents.

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Chevrolet Volt Development Moves Forward With Focus On Aerodynamics
Design team explores aerodynamic enablers to maximize range for next-generation electric vehicles


Warren, MI – The massive fan in GM’s aero lab wind tunnel has been cranked up to full blast as GM’s designers and engineers work to optimize the aerodynamics of the Chevrolet Volt as part of the quest to make the breakthrough concept car a production reality. Aerodynamic improvement is a critical step in meeting the range targets necessary for moving the vehicle to a final production decision.

The design team, now with its own studio dedicated to the development of vehicles powered by the E-flex propulsion system, has been working with engineering, aerodynamicists and other scientists to develop an energy efficient Chevrolet Volt by optimizing aerodynamics. “One of the ways design can contribute to the efficiency of any vehicle is through the aerodynamics of the body shape,” says Ed Welburn, VP, GM Global Design. “The collaboration between a designer and an aerodynamicist can not only contribute to improved fuel economy or extended range, but can produce beautiful and different body shapes.” Frank Weber, Global Vehicle Line Executive and Global Vehicle Chief Engineer for the E-Flex System, agrees. “The electric range of the Chevrolet Volt is most sensitive to improvements in aero, which is in contrast to a traditional vehicle program in which mass typically plays a larger role.”

Reducing drag

Aerodynamic drag accounts for approximately 20 percent of the energy consumed in an average vehicle, directly impacting vehicle fuel efficiency. GM designers apply their expertise to address the opportunity to improve the fuel economy of all GM vehicles. In fact, GM offers more fuel efficient vehicles than any other manufacturer, in part due to vehicle design and GM’s aerodynamic development capabilities.
GM’s aerodynamics laboratory, located at the technical center in Warren, Mich., is the center of expertise for optimizing the impact of airflow. In addition to fuel economy, range, emissions, and acceleration are all affected by wind resistance, or aerodynamic drag. The cooling of components such as radiators and brakes are affected by airflow, as is cornering capability, crosswind response, directional stability and on-center handling. GM’s aero lab allows for the testing and development of each of these characteristics.

Aerodynamics development begins with a 1/3-scale model where basic shape and major features are defined. The model includes a highly detailed underbody and engine compartment. Radiator and under hood cooling flow is developed with computational fluid dynamic models. Simultaneously, computation development takes place to determine aerodynamic drag of design alternatives. Development continues with full-scale models, where shape is refined and optimized for low wind noise. The development process concludes with a vehicle prototype validation of the math-based analysis and physical testing.

“I'm proud to say that after extensive aero development of the Volt, and more to come, we have achieved a vehicle that had a coefficient of drag that is more 30% lower in drag than the original concept,” said Welburn. “It’s not easy, but it is a necessity.”

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GM E-Flex Studio Announcement
E-Flex vehicles take shape in sustainable studio

Warren, MI – General Motors (GM) announces the opening of a new studio dedicated to the company’s next generation of electrically-driven vehicles. The newly renovated studio is located within GM’s Advanced Design Center, which was responsible for the Chevrolet Volt concept revealed at the 2007 North American International Auto Show last January.
GM’s new E-Flex Systems Design Studio will develop a variety of vehicles using the E-flex propulsion system, starting with the production version of the Chevrolet Volt. It is the only studio on the planet specifically designated to designing a wide variety of electric plug-in vehicles with a range extender.

“As soon as the project kicked off, I knew we needed a dedicated team focused on the development of E-Flex based vehicles and that team needed its own creative space,” said Ed Welburn, Vice President, Global Design. “To accelerate the program, we needed the right mix of designers and engineers from the original show car team and people with experience from the production side.”

Bob Boniface, design director for the E-flex Systems Design Studio and the Chevrolet Volt, will lead the team of approximately 45 creative designers, sculptors, design engineers, scientists and administrative staff. He was the lead for the exterior design of the Chevrolet Volt concept. According to Boniface, this historical program offers a new set of challenges and opportunities.

“We handpicked a team of both young and experienced designers who are enthusiastic, eager and believe in the cause as I do,” said Boniface. “They want to find a better way, a solution to our dependency on petroleum, and that’s what this car is about.

The Chevrolet Volt, GM’s electric plug-in vehicle, will be the first vehicle designed in the new studio. The Chevrolet Volt is a plug-in electric vehicle that will run up to 40 miles without ever using a drop of gasoline -- which according to government data, would be enough to handle approximately two-thirds of daily commutes for American drivers. The first vehicle in GM’s “E-Flex” family, the Volt will be powered by an electric motor, which draws its energy from on-board batteries. The batteries, in turn, will be re-charged by a small internal combustion engine that will run on gas, diesel or ethanol. When not in use, the batteries will be re-charged by simply plugging the Volt into an electric outlet.

The studio renovation began last June within the existing GM Advanced Design Center. What’s now the new E-flex studio was once an auditorium built for product reviews and other special events hosting famous entertainers and even several former U.S. presidents. The new studio is an adaptive reuse of the existing facility with steps taken toward environmental sustainability with such installations as sustainable carpet, energy efficient, compact florescent lighting; repurposed surfaces, energy efficient window shades to control heating and cooling, rugs made of 100% wool, natural materials, Cradle to Cradle certified furniture that’s recyclable or can be safe composted.

“There’s a lot of history in this building,” said Boniface, “and I feel we’re making our own history by designing a whole new generation of vehicles that don’t require gasoline.”

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GMI's RIA Production Volt Design