Why don’t electric cars have multiple-gear transmissions?
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Why do electric cars only have 1 gear? This is the first of a five part series sponsored by Formula E, who I’ve partnered with to talk about the engineering behind electric cars. I had the opportunity to get behind the scenes at the New York City E-Prix, and was able to chat with team principals, hang out in the engineering rooms during qualifying, and even learn from this year’s champion, Lucas di Grassi.
So why do electric cars use just a single gear, rather than using traditional transmissions like you’d find paired with internal combustion engines? Electric motors can get away without numerous gears because they are high revving, remain fairly efficient across a very broad rev range, and produce a great amount of torque at low RPM.
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We have all witnessed a triumphant roll out of the first Tesla Model 3 from the conveyor and the start of its production on July 7, 2017, two weeks ahead of schedule. However, while all of the car fans were fixated on this most important event in the history of Tesla, many had missed the latest developments on the car market that exposed its vulnerability.
In the first week of July Tesla’s stocks dropped nearly 13% in value, which equaled to 8 billion loss of the company’s market capitalization and the loss of the number one spot as the most valuable car maker in the US. This stock crisis was a result of Tesla Model S inability to receive the highest safety rating from the Insurance Institute for Highway Safety, lower-than-expected deliveries and rising competition on the electric car market.
Even though Wall Street storms come and go, but it makes us think that betting the future of electric cars on one single company is too risky, and if we paraphrased the popular saying: It takes a village, not a Tesla to revolutionize the auto industry and make electric vehicles a day to day transport for every human on earth.
That is why we would like to review not only Tesla’s latest achievements in the field of green electric cars, but include other auto makers who invest heavily in the electric future of automobiles.
All EV manufacturers that were featured in this video:
TESLA Model 3: www.tesla.com/model3
Lucid Air: lucidmotors.com/car
NIO EP9: nio.io/ep9
Aston Martin RapidE: www.astonmartin.com/en/live/news/2017/06/26/aston-martin-confirms-production-of-first-all-electric-model