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Position: Auto Articles - [Auto News] - Saturn Aura HCCI prototype 2008
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Saturn Aura HCCI prototype 2008
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GM demonstrated real progress on developing an upcoming advanced engine technology for clients that squeezes more miles / gallon of gas and it reduces emissions. General Motors engineers brought the technology of advanced combustion from the laboratory to the track for testing and, now, up to the highway on a driveable concept car - a Saturn Aura having HCCI (homogenous charge compression ignition).
"By achieving HCCI operation at idle, we have eliminated a significant hurdle in our development of this very important fuel-saving technology," said Tom Stephens, the executive vice president, General Motors Global Powertrain and Global Quality. "We are beginning to see how we can make this technology a real benefit for consumers. By combining HCCI with other advanced gasoline engine and control technologies, we can deliver a good fuel savings value for consumers."
"I am pleased with our engineering team鈥檚 progress," affirmed Stephens. "It is another initiative in GM鈥檚 advanced propulsion technology strategy to lessen our dependence on oil. HCCI, direct injection, variable valve timing and lift, and Active Fuel Management all help improve the fuel economy and performance of our internal combustion engines. I am confident that HCCI will have a place within our portfolio of future fuel-saving technologies."
"Fuel consumption with a spark ignition engine is relatively high when idling, so this new development in our HCCI process helps to enhance fuel efficiency," said Dr. Matthias Alt, HCCI program manager, General Motors Powertrain.
"GM鈥檚 HCCI development focuses the technology where it will deliver the most benefit at the most reasonable cost for the consumer," said Alt. "An HCCI engine that uses HCCI in the entire operating mode would be heavier, noisier, more costly and would not deliver the performance experience people expect from a modern car."
"Our development costs for HCCI are very expensive; however, we have made tremendous strides in bringing this much awaited combustion technology out of the lab and onto the test track with the Saturn Aura concept vehicle," said Prof. Dr. Uwe Grebe, the executive director for General Motors Powertrain Advanced Engineering. "More research and testing are required to ensure the technology is ready for the great variety of driving conditions that customers experience."
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