Details on the Upcoming 2011 Porsche Cayenns S Hybrid

In preparation for the upcoming 2011 Porsche Cayenne S Hybrid as well as other planned models, Porsche has released specific details on the different hybrid systems that it plans to start producing later this year.

The Porsche Cayenne S Hybrid will launch simultaneously alongside the redesigned 2011Cayenne this fall, and it uses a parallel hybrid system like many of the conventional hybrid-electric vehicles (HEV) currently on the market. Porsche will use the powerful and efficient 333-horsepower, 3.0-liter supercharged V-6 that is paired with a 47-hp electric motor. Aside from the ability to drive on electric-only power at speeds of almost 40 miles per hour, the Cayenne S Hybrid also features a 'sailing' feature that allows for further fuel conservation by completely shutting off or disengaging the engine from the drivetrain at speeds up to 97 mph. For improved performance, the hybrid system will also help boost the engine's output under heavy acceleration which should allow the Cayenne to accelerate surprisingly fast as the system combines for a total of 428 lb-ft of torque at just 1,000 rpm. This system uses a 288-volt nickel-metal hydride (NiMH) battery pack mounted under the rear cargo area.

Keep checking back with us at Brian Harris Porsche as we bring you the latest details, release dates and other information on the redesigned 2011 Porsche Cayenne and Porsche Cayenne S Hybrid!

*details provided by autotropolis.com

911 GT3 R Hybrid's World Debut in Geneva

The 911 GT3 R Hybrid is a perfect example of the Porsche Intelligent Performance philosophy, a principle to be found in every Porsche: More power on less fuel, more efficiency and lower CO2 emissions – on the track and on the road.

With Porsche's 911 GT3 R with innovative hybrid drive making its debut at the Geneva Motor Show, Porsche takes up another visionary driving concept into the future. The innovative hybrid technology featured in the car has been developed especially for racing, standing out significantly in its configuration and components from conventional hybrid systems. In this case, electrical front axle drive with two electric motors developing 60 kW each supplements the 480-bhp four-litre flat-six at the rear of the 911 GT3 R Hybrid. A further significant point is that instead of the usual batteries in a hybrid road car, an electrical flywheel power generator fitted in the interior next to the driver delivers energy to the electric motors.

The flywheel generator is charged whenever the driver applies the brakes, with the two electric motors reversing their function on the front axle and acting themselves as generators. Then, whenever necessary, that is when accelerating out of a bend or when overtaking, the driver is able to call up extra energy from the charged flywheel generator, the flywheel being slowed down electromagnetically in the generator mode and thus supplying up to 120 kW to the two electric motors at the front from its kinetic energy. This additional power is available to the driver after each charge process for approximately6 - 8 seconds.

Energy formerly converted – and thus wasted – into heat upon every application of the brakes, is now highly efficiently converted into additional drive power.
Depending on racing conditions, hybrid drive is used in this case not only for extra power, but also to save fuel. This again increases the efficiency and, accordingly, the performance of the 911 GT3 R Hybrid, for example by reducing the weight of the tank or making pitstops less frequent.

content and image courtest of www.porsche.com/usa