The Tesla Semi Is an Engineering Failure • Hacker News Board

Re: The Tesla Semi Is an Engineering Failure

#41

Post by ryan93 » Sun, Aug 22, 2021, 5:44 PM UTC

itsoktocry wrote: post #16

ryan93 wrote: post #10

Earlier quoted context omitted.

Why do people always bring up accomplishments at spacex in arguments about Tesla

> Why do people always bring up accomplishments at spacex in arguments about Tesla I think some of these people believe Elon is personally designing and engineering these things, so naturally it carries over. Gwynne Shotwell doesn't get enough credit.

Good point about shotwell. I just dont like if someone criticizes like the tesla freight truck cargo capacity. someone brings up that engineers at spacex figured out how to land rockets

Re: The Tesla Semi Is an Engineering Failure

#42

Post by rkwasny » Sun, Aug 22, 2021, 5:47 PM UTC

It all depends if a fully loaded truck is going up or down the hill, regen of electric semi will be crazy good

Re: The Tesla Semi Is an Engineering Failure

#43

Post by avereveard » Sun, Aug 22, 2021, 9:09 PM UTC

RobinL wrote: 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…

who pays the driver during the recharging? The truck absolutely need to match the driver endurance, so that recharges can be planned during drivers downtime. The trucks are expensive, sure, but an asset. Drivers are the cost.

Re: The Tesla Semi Is an Engineering Failure

#44

Post by jimkleiber » Mon, Aug 23, 2021, 3:31 AM UTC

twothamendment wrote: post #24

jimkleiber wrote: post #9

Earlier quoted context omitted.

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.

Swappable battery packs seem like a good idea. It might even be faster than waiting to pump 100 gallons of fuel. I'm thinking existing truck stops would have a better chance of working than the weigh stations. let's leave the government it, they are barely competent at weighing a truck. Some trucks might not see a weigh station for a week. Some stations are nothing more than a pull out on the side of the road.

Ah good point, I like that idea, especially as it utilizes that infrastructure and doesn't make them disappear when there's a transition to electric.

Re: The Tesla Semi Is an Engineering Failure

#45

Post by collsni » Sun, Aug 29, 2021, 7:43 PM UTC

ErikVandeWater wrote: post #27

collsni wrote: post #12

I understand the drivetrain weight argument, but this guy makes money off these negative viewpoints so.. now my YouTube feed is gonna be conspiracy theories.

> conspiracy theories I get the feeling you use this phrase to dismiss anything you don't like. Nothing about this video at all describes or relates to a conspiracy.

Nope, try it. Open and private browser and only watch that video.