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Porsche 911 EV

Posted on January 6, 2009
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porsche 911 ev

German car tuner Ruf Automobile, known for producing the Porsche’s popular CTR series, has produced the world’s first professionally-built electric Porsche 911, which they named the eRUF but other auto websites have referred the prototype as Porsche 911 EV (for electric vehicle). The prototype model features a brushless three-phase motor that is powered by lithium-ion batteries.

As with many hybrid vehicles, the eRUF is not as fast as its petrol-guzzling cousins. It accelerates from 0 to 100 kph in under 7.0 seconds and it can run at a top speed of 255 kph. However, what is more important is that it can travel up to nearly 320 kilometers without charging.

The battery pack, consisting of 98 pieces of 160Ah Axeon lithium-ion iron-phosphate cells, provides 317 volts and 480 amps of power. Each cell weighs about 5.6 kilograms, totaling to 550 kilograms in the battery pack. Also, the individual cells contain a sensor that sends information regarding cell temperature and voltage to the car’s central control system. With a nominal voltage of 3.3 volts, the cells can last for up to 3,000 charging cycles.

The Porsche 911 EV prototype uses a 150-kilowatt brushless three-phase BLDC motor instead of the traditional 345-horsepower flat six engine. The electric motor can produce up to 650 Nm of torque.

The bad side about this electric car is that because of the battery pack’s immense weight, the whole prototype can weigh up to 1920 kilograms. Compare that to a standard Porsche 911 Carrera S that weighs only 1420 kilograms.

However, since the model is still in the development stage, expect the eRUF to undergo many changes and that includes either decreasing the size of the battery pack or improve its performance to compensate for the heavy batteries.

Image Source: RufAutoCentre.com

 
 

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