For decades, BMW has made the reduction of emissions and fuel consumption a key part of its strategy of product development and improvements in dynamic capacity of each of BMW have been a lasting, brand value sustained. BMW EfficientDynamics philosophy of engineering - the search for a better experience, athletic handling, while reducing consumption and emissions of each vehicle - were the most dramatic drop in consumption of the fleet of any car manufacturer from 1990 to 2005, according to a study by Environmental Defense.
Now, the concept car BMW Vision clearly demonstrates that the objectives are fully compatible EfficientDynamics when applied to a sports car. Designed as a 2 +2 seater plug-in hybrid technology complete this unique car combines the performance of a BMW M car with an efficiency level fuel and emissions management that surpasses even the current levels achieved by the previous small cars. This result is possible thanks to BMW ActiveHybrid combining components of a combustion engine extremely inexpensive, and outstanding aerodynamic qualities.
BMW Vision EfficientDynamics is the result of a "clean" road development process to ensure that proper progress is made in the field of efficiency, driving pleasure, technology and emotional design. BMW Vision EfficientDynamics is the most complete of EfficientDynamics philosophy yet seen.
BMW Vision EfficientDynamics Concept that showed at the Frankfurt Motor Show is a new car is a plug-idea of \u200b\u200bmerging the performance of an M3 with exceptionally low fuel consumption.
He uses uses a 1.5-liter turbodiesel which is essentially half of the fabulous 3.0-liter in the 335d. The triple is rated at a strong 163 hp with maximum torque of 214 lb-ft. The engine is paired with a six-speed DCT derived unit used in the M3 and Z4.
the concept uses a new hybrid-deposit new system is a mild hybrid development is debuting at 7 ActiveHybrid. As in 7, a more powerful 33 hp electric motor located between the engine and transmission. A second 80-hp motor provides drive to the front axle. The total net production of the system drive is 356 hp and 590 lb-ft of torque. Read more after the jump.
Using electric motors require a power system. This new concept BMW has a deal similar to the Chevrolet Volt uses a lithium polymer battery running down the center tunnel of the vehicle. Also similar to the Volt, the package has a useful capacity of 8.6 kWh. However, total capacity of only 10.8 kWh. BMW says the package used in the concept can use 80% of capacity, more than 50% using the Volt. The advantage is that the package weighs just 187 pounds. When connected to a European standard of 220 V / 16 A outlet, the battery can be recharged in just 2.5 hours.
Unlike the Volt, which is designed to give maximum performance electric drive system, the concept of BMW gets its full capacity from the power delivery combined. The concept is able to run about 31 miles off the electricity just and complete the NEDC test procedure on electricity. Diesel engine efficiency mean that the 6.6-liter tank can propel the car another 400 miles. The power consumption of the concept is kWh/100 28.16 miles, compared with the claimed kWh/100 25 miles for the Volt.
Another area where BMW is different, especially the original idea of \u200b\u200bV, is aerodynamics. The Volt is well known for having terrible drag properties. The BMW is claimed to have a drag coefficient of 0.22, part of which was achieved by moving the diesel engine to the rear of the car. A mid-mounted engine is directly in front of the rear axle, combined with the front of the small electric motor very low for an interface. Front air resistance similar to the Cadillac Provoq concept - that eventually became the production SRX - is reduced through the use of thermostatically controlled slats in front of the radiator air inlets to redirect when not needed for cooling . Overall, BMW says it has made use of the knowledge gained in motorsports to optimize the aerodynamics of the Vision EfficientDynamics concept.
addition to the powertrain, BMW has launched a range of technologies to refine the concept. An aluminum chassis and suspension complete with a roof and much of of skin from a combination of light-sensitive polycarbonate with a mass of only 3,076 pounds claimed. Other interesting tidbits include the design of polycarbonate glass that darkens when light shines on it, and LED lighting throughout has given designers greater freedom and reduced energy consumption.
Perhaps most interesting is what BMW calls "Forward Looking power management." The idea here is to use the other systems on the vehicle to anticipate what is coming and optimize the use of different powertrain components to reduce total energy consumption. For example, the radar sensor for Active cruise control could be used to stop the engine in a timely and trigger regenerative braking if traffic ahead is slowing. We will be "looking forward" to learn more about this system.
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