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Towing a Tesla at 70 MPH replenishes battery at fast charger rates

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Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#22

We have trains in chicago that reach whiskers up to charging lines above them. Same as the trolley systems in San Francisco. What if every major city to city freeway stretch had these in a lane for electric vehicles?

I don't know whether or not it is legal, but I have seen an electric car with tram whiskers before. I think I saw it in San Francisco, and I think it was a Prius. Some quick Googling fails to turn it up, though.

EDIT Found a link: https://thebolditalic.com/hacked-prius-running-on-muni-power...

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#23
post #6

It seems like the tire wear wouldn't be worth it. You're pulling the tires at almost 100 horsepower of energy transfer. Sure, neat for a video gag though.

Hah, don't try it in Europe either, max towing speed in Europe is 40km/h or 25mph.

I guess a tow truck with a bed that has a rolling road would be an idea, prop up the car so the weight of the car isn't actually exerting force that makes the wheels harder to turn/cause extra wear. Or the "rolling road" can be replaced be a contraption that attaches to the wheels by e.g. its rims, and spins it.

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#24

What if you had two Teslas taking turns towing each other at 70 MPH? You could increase the range to (INFINITY*EFFICIENCY)-MATHS! That's a lot of muskjuice.

Why stop there? You could get a whole circle of Teslas towing each other and never even have to stop moving!

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#26
post #18

What if they had a Tesla merry-go-round where instead of charging your Tesla, you connected it to this giant horizontal ferris wheel that spun it around and charged the battery? It could be wind powered!

You said this as a joke, but I found myself (at least for a little while) wondering whether this might be more efficient than having the wind turbine generate electricity and then have that electricity power the charger. But then I remembered that there is the cost of moving the relatively heavy vehicle on the merry-go-round and realized it wouldn't actually work.

What if you had a driveable wind turbine? They have solar panels on Priuses, might as well add wind to Teslas. The faster you drive, the more wind there is!

Now if you had a solar-powered Prius towing a wind-powered Tesla on the deck of a nuclear-powered carrier, you're just one creative accountant away from starting your own renewable defense company.

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#27
post #20
post #8

Earlier quoted context omitted.

I assume this is tongue-in-cheek, but just pulling up close to you and springing out a charging cable arm would be more efficient.

And even better just embed some wires in the road and charge everyone at highway speeds. Either ground-level power supply through conductive rails or inductive coils both work with different tradeoffs. https://en.wikipedia.org/wiki/Electric_road

> Just embed some wires in the road...

No offense but that is the most loaded phrase I've heard this week.

That would be a major overhaul of both roads and electric car designs.

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#28

What if they had a Tesla merry-go-round where instead of charging your Tesla, you connected it to this giant horizontal ferris wheel that spun it around and charged the battery? It could be wind powered!

I had a similar idea which involved a large amount of gerbils in a giant wheel. They can convert sunflower seeds (which are of course solar powered) into energy 24/7. Thanks to your stroke of genius instead of using a generator and charging your EV you can just put a wheel next to it and leave the Tesla on it now. I haven’t worked out what to do with half a ton of gerbil corpses, shit and sunflower seed shells yet though.

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#29

Regenerative braking is so neat. I drove up a steep windy road to go on a hike with my plugin hybrid. On the way down I tried to let gravity do all of the acceleration and regenerative braking do all of the deceleration. At the bottom of the hill I had racked up +3 miles in total. Another fringe benefit is that brake pads wear out slower and produce less pollution.

Show HN: lapetitejort goes hiking, discovers perpetual motion

That would be a neat test. Find a steep hill, preferably as straight as possible, and test how many times an electric car can traverse it before running out of batteries. Would the distance traveled exceed that on a flat road with no generation? By how much? I'm sure someone in San Fran has already tested this.

Re: Towing a Tesla at 70 MPH replenishes battery at fast charger rates

#30

Regenerative braking is so neat. I drove up a steep windy road to go on a hike with my plugin hybrid. On the way down I tried to let gravity do all of the acceleration and regenerative braking do all of the deceleration. At the bottom of the hill I had racked up +3 miles in total. Another fringe benefit is that brake pads wear out slower and produce less pollution.

Show HN: lapetitejort goes hiking, discovers perpetual motion

That's just pseudoscience: The earth is flat so there's no such thing as going up hills.
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