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Started By
Message
re: How did Tesla solve the towing range problem their new upcoming semi truck?
Posted on 1/15/23 at 8:47 am to DownshiftAndFloorIt
Posted on 1/15/23 at 8:47 am to DownshiftAndFloorIt
quote:
OTR trucking, pushing barges upriver, basically any kind of sustained hard work is NOT what we should be doing with electric vehicles.
They're trying battery powered railroad locomotives for mainline service.
Considering the amount of time a locomotive is run wide open I don't see this working well.
Now if they were to go with actual electric locomotives they would see big benefits. The downside is the amount of infrastructure (the catenary to supply the electricity to the locomotives) required.
This post was edited on 1/15/23 at 8:50 am
0
Posted on 1/15/23 at 8:49 am to kywildcatfanone
Right. I think hydrogen is the only thing actually feasible for OTR use. Cummins is pimping their hydrogen truck tech hard right now.
Electric can make sense for regional operation. I just hate that we ramrod it down everyone's throats. If electric were the most economical option for the job, it would kill ICE applications on its own.
Electric can make sense for regional operation. I just hate that we ramrod it down everyone's throats. If electric were the most economical option for the job, it would kill ICE applications on its own.
Posted on 1/15/23 at 8:56 am to DownshiftAndFloorIt
quote:
OTR trucking
The OTR advantage will arrive with fully autonomous trucks and a full interstate charging network for them. That cuts out the cost of the drivers and they can run 24/7/365 minus recharge times and maintenance. Unlike human drivers with their strict time limits and windows.
Posted on 1/15/23 at 8:59 am to rickgrimes
quote:
With all the bad rap EV towing gets, it got me thinking, how did Tesla solve the towing problem in their semi trucks?
Increased capacity.
The pickup trucks you see doing hauls have battery capacities of less than 200kwh
The Tesla semi has a capacity of over a megawatt-hour.
It does this by having larger batteries yes, but more importantly storing the power at more than double the voltage (~400V vs 1000v)
Posted on 1/15/23 at 8:59 am to rickgrimes
Tailwind and make any load have to be aerodynamic.
Think I read that like one supercharge on one of those things is like and entire city block of power.
Think I read that like one supercharge on one of those things is like and entire city block of power.
Posted on 1/15/23 at 9:01 am to taylork37
quote:
but posters still have an irrational hard on against EVs.
Shows how politics bias people.
Posted on 1/15/23 at 9:03 am to RealDawg
quote:
Tailwind and make any load have to be aerodynamic.
Think I read that like one supercharge on one of those things is like and entire city block of power.
That is the biggest legit criticism of the electric push: not enough growth of the grid.
Posted on 1/15/23 at 9:13 am to AndyCBR
The increased weight from the EVs is going to wear out our already shitty roads and bridges faster, correct?
Posted on 1/15/23 at 9:21 am to rickgrimes
I work in the industry.
Let me tell you the TRUTH as told to me 3 months ago by the president of the SAE (Society of Automotive Engineers)
1. The days of gas chainsaws and weedeaters and pretty much any other handheld tool we know of that was gas is over. The technology exists, is reliable, and major manufacturers know how to deliver to market.
2. Anything up to 25 hp diesel or gas can be scaled commercially now. So that means in the next 5-10 years, lawnmowers, mini excavators, etc. all go electric- the tech exists today and the envelope (size required to do it and make it reasonable) all works. Over 25 hp will be scaled during that time, but not as broad.
3. Anything over 100 hp diesel will be that way for the foreseeable future. There is no reliable/scaleable/realistic solution today that exists to replace big hp needs, and nowhere nearly as good as diesel does it. Period.
So, Yes- people like Tesla will continue to test and explore and there may be a breakthrough in battery technology, but no one is losing their tractor or Peterbilt anytime soon.
From a practical standpoint- I rented a Tesla a month ago. I like tech- I don’t disagree that electric is very cool. I also don’t like people telling me what to do. I own and operate 30 IC engines today- this technology affects me personally and professionally- my fuel bill is $50,000 per year.
So, I can say with experience…
Driving a Tesla is insane- I own some fast vehicles, I have driven faster vehicles. Nothing I have ever operated compares to the acceleration and tech that Tesla provides.
However- the infrastructure, even in MAJOR metro areas (Chicago for me) didn’t exist- I had to find a Supercharger, pay $12 bucks, wait 45 minutes, to make sure I had enough battery to get back to O’hare from my meeting in Southern Wisconsin.
Normally, that would be a 5 minute fill up and $15 bucks of gas in a Hertz compact.
Let me tell you the TRUTH as told to me 3 months ago by the president of the SAE (Society of Automotive Engineers)
1. The days of gas chainsaws and weedeaters and pretty much any other handheld tool we know of that was gas is over. The technology exists, is reliable, and major manufacturers know how to deliver to market.
2. Anything up to 25 hp diesel or gas can be scaled commercially now. So that means in the next 5-10 years, lawnmowers, mini excavators, etc. all go electric- the tech exists today and the envelope (size required to do it and make it reasonable) all works. Over 25 hp will be scaled during that time, but not as broad.
3. Anything over 100 hp diesel will be that way for the foreseeable future. There is no reliable/scaleable/realistic solution today that exists to replace big hp needs, and nowhere nearly as good as diesel does it. Period.
So, Yes- people like Tesla will continue to test and explore and there may be a breakthrough in battery technology, but no one is losing their tractor or Peterbilt anytime soon.
From a practical standpoint- I rented a Tesla a month ago. I like tech- I don’t disagree that electric is very cool. I also don’t like people telling me what to do. I own and operate 30 IC engines today- this technology affects me personally and professionally- my fuel bill is $50,000 per year.
So, I can say with experience…
Driving a Tesla is insane- I own some fast vehicles, I have driven faster vehicles. Nothing I have ever operated compares to the acceleration and tech that Tesla provides.
However- the infrastructure, even in MAJOR metro areas (Chicago for me) didn’t exist- I had to find a Supercharger, pay $12 bucks, wait 45 minutes, to make sure I had enough battery to get back to O’hare from my meeting in Southern Wisconsin.
Normally, that would be a 5 minute fill up and $15 bucks of gas in a Hertz compact.
Posted on 1/15/23 at 9:22 am to Obtuse1
quote:
The key number that has not been released but lots of speculation on is the weight of the tractor itself which could significantly impact the max tare weight of the cargo.
The rumor mill is saying this was a 44k pound load of jersey barriers. That would put the tractor in the 27-30k range depending on the trailer.
Posted on 1/15/23 at 9:22 am to JohnnyKilroy
quote:
100% this dude couldn't stand musk and his anti-O&G agenda up until about 3 months ago.
Me? I like Musk and his companies. Always have. We always need forward thinkers in this world.
Posted on 1/15/23 at 9:24 am to TigerIron
quote:
The increased weight from the EVs is going to wear out our already shitty roads and bridges faster, correct?
They're only marginally heavier. I worry more about baws with shiny unused tow hitches in F250s destroying the roads over that Model 3 thats 100lbs heaver than a BMW 3 series.
Posted on 1/15/23 at 9:28 am to billjamin
I'm no mind reader, but I believe he was aiming that comment towards the electric tractors weighing in at over 35k......
Posted on 1/15/23 at 9:30 am to DownshiftAndFloorIt
quote:
I'm no mind reader, but I believe he was aiming that comment towards the electric tractors weighing in at over 35k......
CMV will still be limited by gross weight not component weight. So it's a moot point.
Posted on 1/15/23 at 9:33 am to billjamin
quote:
The rumor mill is saying this was a 44k pound load of jersey barriers.
"They" can't even agree on the length of the barriers which is why the estimates have varied so much. There is no doubt the tractor is a pig otherwise they would have released the number. However, it probably wouldn't impact 80+% of current loads.
As someone mentioned the EV semis will have a negative impact on road wear. Even if they are running well under the ICE weight limit of 80k# the tractor's extra weight is always going to be there. One thing it is unlikely to do is have the profound effect on roads the 100k# limit LA has on cane trucks.
Posted on 1/15/23 at 9:33 am to subMOA
I appreciate when someone in these threads has real world experience instead of a snarky comment
Posted on 1/15/23 at 9:35 am to billjamin
No it isn't. The heavier weight of the tractor directly translates to more road pressure vs a lighter diesel.
Your formally 40k load will now be 60k. That's not insignificant in the discussion of infrastructure problems. There's LOTS of those that will have to be addressed before these things become economically viable.
Your formally 40k load will now be 60k. That's not insignificant in the discussion of infrastructure problems. There's LOTS of those that will have to be addressed before these things become economically viable.
Posted on 1/15/23 at 9:36 am to kywildcatfanone
quote:
Those things will be sold to yards to move stuff around locally. Not OTR. And that is fine.
This is the way. The Nissan plant in Canton, MS has several plants within a few miles. They have fleets of single-cab semi-trucks to deliver materials from the contractors to the main plant. These may work in this type of scenario, but not in OTR trucking.
Posted on 1/15/23 at 9:37 am to DownshiftAndFloorIt
quote:
Cummins is pimping their hydrogen truck tech hard right now.
Well duh, they want government grants too. Vast majority of why they are putting millions into "development" is so they can make themselves eligible for a share of billions of tax dollars earmarked later.
Posted on 1/15/23 at 9:39 am to billjamin
quote:
That would put the tractor in the 27-30k range depending on the trailer.
A typical semi tractor AND trailer weighs around 30-32k.
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