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| Subject: Re: interesting news on the hybrid front | |
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Author: sci guy |
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Date Posted: 11:24:43 05/13/07 Sun In reply to: Duncan7 's message, "Re: interesting news on the hybrid front" on 22:54:02 05/12/07 Sat I call that a significant step... I guess you wouldn't like to see a 40% improvement in the efficiency of you solar panels, would you? >what do you call that Not so crappy gas mileage or >less crappy then before gas mileage? > >>the power of a hemi, with up to 40% better fuel >economy >> >> >>href="http://news.en.autos.sympatico.msn.ca/article.as >p >>x?cp-documentid=4807256">http://news.en.autos.sympatic >o >>.msn.ca/article.aspx?cp-documentid=4807256 >> >>Two-Mode Hybrid Chrysler Aspen & Dodge Durango to >>Arrive in '08 >>Chrysler Group's First Application of Two-Mode Hybrid >>advertisement >>Canadian Auto Press >>The unusual technological alliance between >>DaimlerChrysler, BMW and General Motors that started >>in 2005 has resulted in a major groundbreaking >>advancement in terms of hybrid drivetrains. Each of >>the three firms invested approximately one billion >>dollars in the research and development, which was >>conducted in Michigan at the DaimlerChrysler, GM and >>BMW Hybrid Development Centre. A Two-Mode Hybrid >>System is the result, first shown in Chevy's Tahoe >>Hybrid and then in a number of DCX concept vehicles. >>Now it is heading for production in a Dodge and a >>Chrysler. The Two-Mode Hybrid System has been designed >>to be used on almost every type of vehicle made, >>ranging from a compact front-wheel drive car, to a >>midsize SUV, to a large pickup truck. With DCX, the >>first version of this system will be arriving on the >>market starting 2008. >>The 2008 Dodge Durango Hybrid and 2008 Chrysler Aspen >>Hybrid will be the first gasoline-electric production >>vehicles that Chrysler Group has made, which should >>help spur interest in the brand’s large SUVs. >>Being that the Durango and Aspen are sought after for >>their high towing capabilities and ample on-road >>performance, Chrysler Group decided to make the >>5.7-litre HEMI V8 engine the centerpiece of the new >>drivetrain system. Besides offering the muscle needed >>in a large sport utility vehicle, this HEMI also >>offers MDS cylinder deactivation, which seamlessly >>shuts off four cylinders under lighter loads. Combined >>with the hybrid assist, Chrysler Group estimates that >>the Two-Mode Durango and Aspen will have 25-percent >>better fuel economy than their non-hybrid >>counterparts. The biggest gains will be observed in >>the city, where the engine-stop and electrical assist >>are expected to reduce these large SUVs’ thirst by up >>to 40-percent! >>What makes the Two-Mode hybrid system different than >>Toyota’s Hybrid Synergy Drive or Honda’s Integrated >>Motor Assist is its layout. It still has a gasoline >>motor, a starter/generator and batteries, and can shut >>off at stoplights, but the main difference is that it >>has two sets of gears in its automatic transmission; >>one set is used for the HEMI V8 with four fixed ratios >>(i.e. a four-speed automatic), while the other is used >>for the twin electric motors. The combination of the >>motors and transmissions yields two different >>operating modes. The first is at low speeds, where the >>vehicle can be powered by either the gasoline engine, >>the electric motor or both. It uses the first two >>speeds in the automatic transmission. The second mode >>is more complex, and revolves around higher speeds and >>engine loads. In this situation, the gasoline engine >>always runs, but the electric motors kick in at >>different points with different ratios, creating the >>effect of a CVT transmission for better efficiency. >>The Two-Mode system is a rather complicated >>drivetrain, but it will ease the thirst and emissions >>of large sport utility vehicles. We’re very curious to >>see how the system functions, and how the vehicle will >>drive, but we’ll have to wait until the Durango and >>Aspen Hybrids arrive in 2008. Shortly thereafter, >>General Motors’ version of the system will debut in >>the Tahoe and Yukon, as well as in its half-ton pickup >>truck lineup. [ Next Thread | Previous Thread | Next Message | Previous Message ] |