The launch of the Tesla Semi Class 8 electrical semi brings a number of new options to the market (many not but revealed). One such factor is the high-voltage powertrain system from Tesla.
Tesla introduced through the Semi delivery event that the truck is supplied with an all-new “thousand volt powertrain,” which is a serious contributor to the excellent effectivity of the automobile (it has 500 miles of range, after all).
Tesla doesn’t elaborate additional on what it actually means although. Whether or not it is precisely 1,000 V or round 1,000 V. Whether or not it is a nominal worth or peak. Whether or not it is just for the battery system or additionally for the three inverters and motors (which we assume).
Nonetheless, it is a groundbreaking change for the corporate, which accustomed us to utilizing a 400 V battery system in its electrical automobiles (the Mannequin 3, Mannequin Y, Mannequin S and Mannequin X).
Among the EV producers already launched the primary electrical automobile fashions with 800 V and even 900 V degree programs.
We are able to point out Porsche Taycan in addition to Hyundai Motor Group’s E-GMP-based Hyundai Ioniq 5 and Kia EV6. The Lucid Air is even at 924 V (within the 22-module long-range battery pack model, in comparison with 756 V within the 18-module battery pack model). Rivian announced an intention to go 800 V.
Please word that precise voltage of the system modifications between 0% and 100% state-of-charge fairly noticeably (identical to particular person battery cell voltage, multiplied by the variety of cells in sequence). The distinction may exceed 1 / 4 of the height worth so we’re speaking about greater than 200 V change.
Many people questioned whether or not Tesla will probably be switching to an 800 V class battery system in its passenger automobiles. For the Tesla Semi, it was anticipated.
Giant automobiles, particularly a semi, actually require excessive energy, each to drive and to cost quick. As a result of electrical losses scale with the sq. of the present, it is all the time price rising voltage and sending the identical energy at a proportionally lowered present.
On the charging facet, it permits lowered cable thickness (weight and losses). On the facet of the drive models (between the battery pack and wheels), it permits for improved effectivity of driving in addition to regenerative braking. The higher the effectivity, the smaller and lighter the battery and the price of the automobile (assuming the identical vary).
The downside of upper voltage is that it is a extra superior resolution (it’d require dearer components or a redesign of current components within the high-voltage system). However usually, the change to a better voltage degree is a necessity (the railroad trade is aware of it very nicely and people within the aviation trade higher study it quick).
Tesla determined that it’s shifting to “thousand volts” within the Semi. However for certain it is not going to be the one high-voltage electrical automobile from Tesla.
The corporate has admitted that extra automobiles are coming with that system. It is an apparent suggestion that the subsequent one would be the Tesla Cybertruck, particularly as a result of it is also going to get some actually quick charging functionality (degree of 1 MW).
The principle query is whether or not 1,000 V will stay just for the big automobiles or additionally for passenger automobiles, just like the Mannequin 3, Mannequin Y, Mannequin S and Mannequin X?
Possibly with one other important improve to its current automobiles (or an introduction of a brand new mannequin), Tesla will determine to additionally improve the vary and additional improve effectivity.