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Myths Regarding Electric Vehicles- #3 Performance

(Joseph Gottlieb, CTO, Thursday, September 26, 2019)

There are a lot of myths regarding batteries for electric vehicle use, ranging from their price, lifespan, availability, to safety. Probably one of the more critical concerns for a buyer is performance- will electric vehicles have the power and speed I want in an electric vehicle?

A survey by Ford found that 90% of Americans and Europeans did not associated electric vehicles with quick acceleration. Ford is developing a Mustang-inspired electric SEV and has expressed a commitment to busting some of the myths around electric vehicles, particularly those around performance including creating performance videos of the SEV, with the design details camouflaged until their upcoming launch, possibly at the November Los Angeles Auto Show.

Alliant Energy surveys found that there is a perception that electric vehicles perform like “oversized golf carts.” Yet, actual electric vehicle drivers state that what they like most about their EVs is the performance. There is an explanation for the quick acceleration associated with electric vehicles:

That’s because an electric motor generates 100 percent of its available torque instantly and maintains it across the full power range. With a gas engine, torque is produced on a curve, with less at the beginning and end, and the most registering at about the center. What’s more, EVs use a single-gear transmission that further enlivens performance by not having to shift into higher ratios as engine speed increases.

As a result, when someone driving an EV pushes the accelerator pedal to the floor, the transition from stationary to speed is both instantaneous and continuous.

Did you know that one of the fastest car in the world is 100% electric? The Battista, by automaker Automobili Pininfarina, does 0-62mph in less than two seconds, 186mph in less than 12 seconds, has a top speed of over 217mph, and delivers 280 miles on one charge. Translation- it can reach 180 miles per hour in less time than a F-16 jet. Tesla boasts the same performance for 0-60mph but at one tenth the price of a Battista with a range of 620 miles. Ah, longing for those good old days of no speed limits in Nevada and Montana.

At Rhombus, our High-Power Energy Lab in Dearborn, Michigan contains sophisticated equipment for product development, testing and validation of regenerative grid-tied or island-mode power conversion devices. The lab has 4 test bays each with 350kVA capacity or can be combined for higher loads. Capable of testing to UL and California Energy Commission (CEC) efficiency standards, the lab allows us to test the limits of power converter and battery designs to readily and quickly adapt to evolving state, national and international regulations.

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