Musk confirmed on the 14th of this month that Tesla's first semi-trailer Semi will be officially released in September this year, continuing to use all-electric drive.
Compared to the appearance of Semi, people seem to be more concerned about how Tesla can solve the problem of battery life.
Some people in the Redditor community believe that the only way to increase battery life is to increase the number of batteries, but this is actually a very contradiction, more batteries will bring weight increase, the corresponding drive power will also increase.
Therefore, Tesla needs to find a sweet spot between battery life and weight.
Netizen analysis shows that the current life of ordinary diesel semi-trailers is about 800 kilometers. According to the energy density of 250Wh/kg of 2170 lithium batteries used by Tesla, the 680kWh battery can last for about 900 kilometers, but the total battery pack. The weight will reach 3 tons.
In addition, Tesla must also try to reduce the weight of the car body.
At present, ordinary trucks will set up a rest area in the cab so that one of the two drivers can drive, and one person can rest at the same time, so that people can rest without stopping, thereby improving transportation efficiency.
However, such a design is likely to be cancelled in the Tesla Semi, because it is likely to be equipped with a 5-level automatic driving function, which can be driven completely out of manual control, so a driver can drive for a long time. Travel. As a result, the weight of the cab will be significantly reduced.
At the same time, Semi is not as sensitive to charging time as other electric vehicles, because according to current European legislation, truck drivers must rest for more than 10 hours after 11 hours of continuous driving, so Semi has plenty of time to replenish power. .
However, there is a contrary opinion on the above inference that Semi is definitely not a truck dedicated to long-distance transportation. It is likely to be located in short-distance transportation between the city or neighboring cities, so it will not be loaded too much. The battery, but a transportation vehicle characterized by fast charging and efficient cleaning.
