Tesla Roadster 3.0

Tesla Motors have announced a new extended-range upgrade for the Roadster - the two-door sports car that preceded the Model S sedan

1/3/15 4:00 am chumakdenis 1

Tesla Motors have announced a new extended-range upgrade for the Roadster - the Lotus-based two-door that preceded the Model S sedan.

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The upgrade includes a battery swap, a retrofit aerodynamics kit to reduce drag by 15% plus new tires and wheel bearings to decrease rolling resistance by 20%. The upgrades are expected to yield a 40 to 50 percent improvement in range, breaking the 400-mile barrier.

Battery technology has continued a rapid improvement in recent years, as has Tesla's experience in optimizing total vehicle efficiency through Model S development. Tesla have long been excited to apply this learning back to their first vehicle, and aim to do just that with the prototype Roadster 3.0 package. It consists of three main improvement areas.

Batteries
The original Roadster battery was the very first lithium ion battery put into production in any vehicle. It was state of the art in 2008, but cell technology has improved substantially since then. Tesla have identified a new cell that has 31% more energy than the original Roadster cell. Using this new cell they have created a battery pack that delivers roughly 70 kWh in the same package as the original battery.

Aerodynamics
The original Roadster had a drag coefficient (Cd) of 0.36. Using modern computational methods Tesla engineers are going to make a 15% improvement, dropping the total Cd down to 0.31 with a retrofit aero kit.

Rolling resistance
The original Roadster tires have a rolling resistance coefficient (Crr) of 11.0 kg/ton. New tires for the Roadster 3.0 have a Crr of roughly 8.9 kg/ton, about a 20% improvement. They are also making improvements in the wheel bearings and residual brake drag that further reduce overall rolling resistance of the car.

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Summary

Combining all of these improvements Tesla 'expect to achieve a predicted 40-50% improvement on range between the original Roadster and Roadster 3.0. There is a set of speeds and driving conditions where we can confidently drive the Roadster 3.0 over 400 miles (640 km). Tesla will be demonstrating this in the real world during a non-stop drive from San Francisco to Los Angeles in the early weeks of 2015.

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Appointments for upgrading Roadsters will be taken this spring once the new battery pack finishes safety validation. Tesla engineers are confident that this will not be the last update the Roadster will receive in the many years to come.

Well, it sounds definitely perspective and optimistic,isn't it?

Let's hope that Tesla's promises will come this way.

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P.S.Do you have any ideas with what innovative solutions Tesla will come up? How Tesla Roadster prototype 3.0 will look like when it will be ready for production?

Leave your comments in the comment section below.

  concept luxurious electric vehicles prototype innovations electric vehicle all-electric vehicle elon musk tesla roadster 3.0 tesla roadster tesla

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