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Self-Powered Trailers Promise Leaner Freight Runs

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Re: Self-Powered Trailers Promise Leaner Freight Runs

#21
post #20
post #15

Earlier quoted context omitted.

But that's the thing: you already have to pay a driver to sit around! In Europe there's (simplified) a mandatory 45-minute rest break after 4.5 hours of driving. Similarly, there's a mandatory 11-hour rest period after the daily maximum of 10 hours of driving. And it is very strictly enforced, with every commercial truck having been equipped with a sealed and certified data logger, plenty of random checks by traffic…

At least from the truckers I watch on YouTube from Germany, there is already a shortage of rest stops for trucks. Sometimes you can see them even in the entrance of the rest stops, parked in a dangerous spot. If they all have to charge, then that becomes a problem, because they can’t find a space even „creatively“. Not saying that electric trucks are bad, just one more problem to solve

Yes, I was thinking about this exact situation (drivers waiting around in the "wrong" spots). But that is already a problem, which should be fixed, whatever energy the truck uses. So if they should increase parking spaces anyway, might as well add charging infrastructure while at it.

Yes, I know it's a bit more involved than just pouring concrete and calling it a truck stop, but at some point politicians need to actually do something about this push for electrification.

Re: Self-Powered Trailers Promise Leaner Freight Runs

#23
post #15

Earlier quoted context omitted.

Charging time. A truck/driver doesnt remain stopped. It drops a trailer and picks up another. And a truck needs charging on the open road where there just are not any charging stations. But a trailer remains parked at a loading bay for hours, a commercial facility where installing chargers makes sense. A trailer therefore has more oppertunity to charge than a truck. And if a company wanted to, parking a trailer to le…

But that's the thing: you already have to pay a driver to sit around! In Europe there's (simplified) a mandatory 45-minute rest break after 4.5 hours of driving. Similarly, there's a mandatory 11-hour rest period after the daily maximum of 10 hours of driving. And it is very strictly enforced, with every commercial truck having been equipped with a sealed and certified data logger, plenty of random checks by traffic…

Not all trucking is the super trucker pissing in a jug OTR stuff you see on youtube (those are the guys with the most down time to make youtube content though). There's god knows how many LTL and reefer fleets doing local delivery and mostly home at night that could benefit from something like this.

That said I don't the cost is low enough for them yet.

Re: Self-Powered Trailers Promise Leaner Freight Runs

#24
post #10

In the US, commercial trailers are used like these crappy sheds, you go get one and the ABS unit is gone, the only thing worth stealing. For any company where this doesn’t hold it’s a big deal. The bigger deal is really RV trailers. You power assist, with simple motors controlled by pulling, and you can pull a huge one with ANY car, you don’t need truck, just modified mirrors. Plus the RV trailer benefits from slow s…

In practice it's of course not so simple. Every truck that passes you (or that you pass) will suck you right in if your tow vehicle isn't heavy enough or you don't have good enough grip. Also, (RV/drum) trailer brakes suck so hard that you really want a vehicle with some additional stopping power other than regular brakes (heavy duty transmission, big engine, and diesel exhaust or compression brake). E-brakes work we…

Or flip the narrative and put the steering wheel in the RV trailer and tow your tiny car behind it!

Wait...

Re: Self-Powered Trailers Promise Leaner Freight Runs

#25

Earlier quoted context omitted.

> With 13+ years ROI (electricity is not free) is this really beneficial? Regenerative and solar electricity is free, and regen braking additionally saves wear and tear on brake pads. The real benefit I think is when stuff like tax codes, carbon credits and government subsidies come into play and ROI goes down significantly. Or when the next war hits and diesel actually hits and bypasses the 2.50€/l mark.

> The real benefit I think is when stuff like tax codes, carbon credits and government subsidies come into play and ROI goes down significantly. Those are unreliable and vary at the whim of the government and their need to fill a hole in the budget. The only reliable factor here is a subsidy on the purchase price for the trailer as that can not be withdrawn after a year. Carbon credits will disappear as soon as a sig…

>Those are unreliable and vary at the whim of the government and their need to fill a hole in the budget.

Sure, but that doesn't matter to the guy buying the trailer. They got a tax break, credit, whatever, and through the magic of financialization they sold that tax break for $.92 on the dollar. So they don't really care what happens. And the $.08 hedges the middle man's risk. Etc. etc.

Re: Self-Powered Trailers Promise Leaner Freight Runs

#26
post #22

Even a version without AC charging (just solar + regen) with a smaller battery seems like a good deal

The amount of solar power available to the square area on top of a trailer is negligible compared to the energy required to haul it long distances. Regen braking would probably only be worth it in some limited circumstances.

Re: Self-Powered Trailers Promise Leaner Freight Runs

#27
post #15

Earlier quoted context omitted.

But that's the thing: you already have to pay a driver to sit around! In Europe there's (simplified) a mandatory 45-minute rest break after 4.5 hours of driving. Similarly, there's a mandatory 11-hour rest period after the daily maximum of 10 hours of driving. And it is very strictly enforced, with every commercial truck having been equipped with a sealed and certified data logger, plenty of random checks by traffic…

In Europe (at least in Germany) we already have a lack of truck parking spots along many routes. And that's with parking spots that are just a bit of Asphalt and maybe a portapotty, or big asphalt parking lots attached to a rest stop If we had enough chargers that any trucker could pull into a truck stop at their prescribed rest period and find a free charger, electrifying trucks would indeed be a no-brainer. But in…

I have driven a lot in Europe and a lot in the night (I like to avoid traffic jams and use the no speed limit on the autobahn), I have to say that this does almost exclusively belong to Germany in my experience. Which makes perfect sense because Germany is in the center, has a lot of truck traffic and long autobahns so it makes sense the parking lots are limited. I have not seen this in any other country other then quite exclusive circumstances.

Re: Self-Powered Trailers Promise Leaner Freight Runs

#28
post #26
post #22

Even a version without AC charging (just solar + regen) with a smaller battery seems like a good deal

The amount of solar power available to the square area on top of a trailer is negligible compared to the energy required to haul it long distances. Regen braking would probably only be worth it in some limited circumstances.

[deleted]

Re: Self-Powered Trailers Promise Leaner Freight Runs

#29
post #26
post #22

Even a version without AC charging (just solar + regen) with a smaller battery seems like a good deal

The amount of solar power available to the square area on top of a trailer is negligible compared to the energy required to haul it long distances. Regen braking would probably only be worth it in some limited circumstances.

What's your math on regen braking only being worth it. in limited circumstances?

Re: Self-Powered Trailers Promise Leaner Freight Runs

#30
post #15

Earlier quoted context omitted.

Charging time. A truck/driver doesnt remain stopped. It drops a trailer and picks up another. And a truck needs charging on the open road where there just are not any charging stations. But a trailer remains parked at a loading bay for hours, a commercial facility where installing chargers makes sense. A trailer therefore has more oppertunity to charge than a truck. And if a company wanted to, parking a trailer to le…

But that's the thing: you already have to pay a driver to sit around! In Europe there's (simplified) a mandatory 45-minute rest break after 4.5 hours of driving. Similarly, there's a mandatory 11-hour rest period after the daily maximum of 10 hours of driving. And it is very strictly enforced, with every commercial truck having been equipped with a sealed and certified data logger, plenty of random checks by traffic…

I think many long-haul truckers work in pairs for this reason?
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