neoprufrok
12-14-2004, 01:11 PM
From Autoweek:
"General Motors and DaimlerChrysler are joining forces to develop a new hybrid powertrain that they claim is more efficient and flexible than current hybrids."
"The Mercedes Car Group is also playing a role in the project, leading the development for rear-drive luxury vehicles."
"The new hybrid powertrain, which GM calls Advanced Hybrid System 2, uses two gear sets in the transmission to better use the torque output from the internal combustion engine and two electric motors.
The use of two gear sets offers greater torque multiplication, said Stephens. That means the electric motors can be smaller. The smaller components weigh less and can be more easily packaged in a wide range of vehicles, from small cars to full-sized trucks. Stephens said GM will primarily be providing the technology for the powertrain's electronic controller.
The two gear set scheme enables the powertrain to better improve fuel economy at highway speeds, compared to today's hybrid vehicles, Stephens said.
The automakers expect that the new hybrid powertrain will deliver a 25 percent gain in fuel economy in full-sized trucks, Stephens said. The new powertrain is a scaled-down version of the hybrid drive GM has been using on transit buses since 2003."
You can link to the article here:
http://www.autoweek.com/news.cms?newsId=101437
"General Motors and DaimlerChrysler are joining forces to develop a new hybrid powertrain that they claim is more efficient and flexible than current hybrids."
"The Mercedes Car Group is also playing a role in the project, leading the development for rear-drive luxury vehicles."
"The new hybrid powertrain, which GM calls Advanced Hybrid System 2, uses two gear sets in the transmission to better use the torque output from the internal combustion engine and two electric motors.
The use of two gear sets offers greater torque multiplication, said Stephens. That means the electric motors can be smaller. The smaller components weigh less and can be more easily packaged in a wide range of vehicles, from small cars to full-sized trucks. Stephens said GM will primarily be providing the technology for the powertrain's electronic controller.
The two gear set scheme enables the powertrain to better improve fuel economy at highway speeds, compared to today's hybrid vehicles, Stephens said.
The automakers expect that the new hybrid powertrain will deliver a 25 percent gain in fuel economy in full-sized trucks, Stephens said. The new powertrain is a scaled-down version of the hybrid drive GM has been using on transit buses since 2003."
You can link to the article here:
http://www.autoweek.com/news.cms?newsId=101437