Bluetec:

Mercedes-Benz GL – 80% New for 2013

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Mercedes-Benz GL350 BlueTEC

Mercedes’ (@mbusa) top of the line SUV, the 7-passenger GL (#2013GL-Class), is new for 2013.  As the top selling premium luxury sport utility vehicle, GL certainly is a healthy profit contributor to parent company Daimler AG.  Built at Mercedes-Benz Tuscaloosa, Alabama assembly plant, 53% of GL production is sold in the United States.  The 2013 GL is the second generation GL and continues to be derived from the platform that also underpins the 5-passenger ML.  About 80% of the GL is all new for its second generation.  We had a chance to drive several versions of the new GL at its global press preview in Santa Fe, New Mexico.


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Subaru Concepts Retain Environmental Spirit. Make North American Debut in Detroit.

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Subaru presented two concepts illustrating their continued commitment to preserving the future of the environment while creating fun-to-drive vehicles. VehicleVoice and AutoPacific correspondents review the Subaru concepts seen at the 2006 North American International Auto Show in Detroit.
Subaru B5-TPH – for the Environmentally Conscious with Active Lifestyles
The first was the Subaru B5-TPH. The B5-TPH is a two door, multipurpose coupe that features a clamshell hatch. The B5-TPH reflects Subaru’s Think, Feel, Drive campaign, yet retains the DNA of an authentic Subaru. Its design is rooted around environmentally conscious individuals who have active lifestyles.
The exterior of the B5-TPH is sporty and sleek yet reflects a rugged image. It could very well provide hints toward the design characteristics of the next generation Outback. The B5-TPH set out to achieve two design themes. One was joy, for versatility, and the second was sustainability, for performance.
The B5-TPH fuses Subaru’s four-cylinder turbo engine with hybrid technology. TPH stands for Turbo Parallel Hybrid and is a strategically important technology for the power source of clean-energy vehicles. The TPH powertrain will be incorporated with Subaru’s Boxer Engine and Symmetrical All-Wheel-Drive systems. The TPH powertrain will be test-launched in Subaru vehicles within the Japanese market beginning in 2007.
An electric motor provides smooth power at low speeds, and the four-cylinder turbo engine provides powerful performance in the mid- and high-revolution ranges. The powertrain in the B5-TPH places a thin, 10-kw motor generator between the vehicle’s engine and its automatic transmission. The combination of the motor-generator and the turbocharged Boxer Engine creates a system which will deliver excellent acceleration and fuel economy. For even greater efficiency, the TPH gasoline engine adopts the Miller cycle concept.
The Miller-cycle engine is an improved version of Subaru’s Horizontally-Opposed four-cylinder turbo engine. To achieve Subaru’s level of sporty performance, the engine and automatic transmission torque converter have been linked by means of the motor generator creating a simple powertrain. The Miller cycle engine leaves the intake valve open during part of the compression stroke, effectively shortening the compression stroke to avoid detonation. With assistance from the turbocharger, the cylinder is able to pack a larger “charge” than a conventional-cycle engine. The Miller cycle turbo boxer engine in the B5-TPH operates up to 30 percent more efficiently that a conventional gasoline engine, and reduces CO2 emissions. To further enhance driving performance Subaru plans to equip the system with high-performance manganese lithium-ion batteries. The technology for the manganese lithium-ion batteries was showcased in Subaru’s second concept, the R1e.


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Mercedes-Benz Introduces a New Clean Diesel System

Bluetec: Has Mercedes Developed a Global Clean Diesel System?
There were several Bluetec-equipped vehicles on DaimlerChrysler company stands at the 2006 North American International Auto Show this January, including a Jeep Grand Cherokee Bluetec, the E320 Bluetec, and the concept Vision GL320 Bluetec. AutoPacific explains a bit about this system and where U.S. consumers might see it in real applications.
The Bluetec system is the result of Mercedes search for a diesel emission-control system that can be applied worldwide, meeting federal and market conditions that vary from country to country. The overall difficulty with diesel is the amount of aftertreatment required to lower emissions to levels required by various governments, and how expensive these processes can be.


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