Live data from Hacker News

The Tesla Semi Is an Engineering Failure

youtube.com

1–10 of 45 posts

Re: The Tesla Semi Is an Engineering Failure

#2
> “Did Elon Musk do it? Did he finally create something that isn’t a worse version of what we already have?”

This statement strikes me as ignorant even if we talk exclusively about Tesla. The idea that Elon hasn’t improved on existing designs across all of his current companies (or Paypal) borders on indefensible. Reusable and landable stage 1 boosters come to mind.

Re: The Tesla Semi Is an Engineering Failure

#3

> “Did Elon Musk do it? Did he finally create something that isn’t a worse version of what we already have?” This statement strikes me as ignorant even if we talk exclusively about Tesla. The idea that Elon hasn’t improved on existing designs across all of his current companies (or Paypal) borders on indefensible. Reusable and landable stage 1 boosters come to mind.

The YouTuber made similar videos about Hyperloop and city to city rocket travel so that joke was referencing those

Re: The Tesla Semi Is an Engineering Failure

#6
The video argues that, with current battery technology, to achieve the same range as a current semi, most of the weight of the truck will be batteries, leaving little weight for cargo (3 tonnes relative to 19 tonnes).

I've noticed there is a common theme to arguments against electrification: that they assume it's necessary for an electric vehicle needs to match all the capabilities of a fossil fuel equivalent. i.e. trade offs are not possible.

Why can't the truck just have shorter range (and thus more cargo capacity) and charge more regularly?

If there was proper carbon taxing, the cost of the driver waiting around for charging would be mitigated by the savings made from avoiding carbon tax.

Similarly with electric cars, I'm happy to stop on a very long trip for charging if it means my environmental impact is significantly lower.

I'm assuming the maths in the video is correct. The key figure seems to be that you need 20kg of batteries to achieve the range of 1kg of petrol. Which sounds plausible, but I'm no expert.

Re: The Tesla Semi Is an Engineering Failure

#7

I realize this won’t make a huge difference, but how much does the Diesel engine, transmission & drivetrain on a conventional truck weigh?

I just copied "Diesel engine, transmission & drivetrain" and "weight" into Google and this is what the search revealed. Maybe this could be helpful?

https://dieselsales.com/diesel-engine-and-transmission-weigh...

Re: The Tesla Semi Is an Engineering Failure

#8
post #6

The video argues that, with current battery technology, to achieve the same range as a current semi, most of the weight of the truck will be batteries, leaving little weight for cargo (3 tonnes relative to 19 tonnes). I've noticed there is a common theme to arguments against electrification: that they assume it's necessary for an electric vehicle needs to match all the capabilities of a fossil fuel equivalent. i.e. t…

The history of the entire industries that have a perfectly functional (more functional) alternative re-factoring themselves to match some new offering is quite poor.

Re: The Tesla Semi Is an Engineering Failure

#9
post #6

The video argues that, with current battery technology, to achieve the same range as a current semi, most of the weight of the truck will be batteries, leaving little weight for cargo (3 tonnes relative to 19 tonnes). I've noticed there is a common theme to arguments against electrification: that they assume it's necessary for an electric vehicle needs to match all the capabilities of a fossil fuel equivalent. i.e. t…

Or just swap out the batteries on the way. I think someone on here once suggested to do so at existing weigh stations in the US.

Re: The Tesla Semi Is an Engineering Failure

#10

> “Did Elon Musk do it? Did he finally create something that isn’t a worse version of what we already have?” This statement strikes me as ignorant even if we talk exclusively about Tesla. The idea that Elon hasn’t improved on existing designs across all of his current companies (or Paypal) borders on indefensible. Reusable and landable stage 1 boosters come to mind.

Why do people always bring up accomplishments at spacex in arguments about Tesla
Post reply on HN