Long road trip? Drive faster.

[Thebandit]

Just for fun, I asked Claude to estimate how long it would take to do a 2000 mile road trip in the R2 at various speeds. I used a pretty reasonable efficiency curve (3.15 mpk at 65, 2.74 at 75, 2.39 at 85) and charging speed (30 minutes 10-80%) as assumptions.

Turns out that, taking charging into account, you're better off driving faster. Total travel time decreases steadily up to over 100 mph. Less efficiency at higher speed means more charging stops, but you make up for it in actual driving time.

So if you're doing a shortish trip and trying to just get there without having to charge, then go a bit slower. But if you really want to eat some miles, forget about the efficiency vs speed and just go as fast as you're comfortable.

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[Mos Eisley]

Just for fun, I asked Claude to estimate how long it would take to do a 2000 mile road trip in the R2 at various speeds. I used a pretty reasonable efficiency curve (3.15 mpk at 65, 2.74 at 75, 2.39 at 85) and charging speed (30 minutes 10-80%) as assumptions.

Turns out that, taking charging into account, you're better off driving faster. Total travel time decreases steadily up to over 100 mph. Less efficiency at higher speed means more charging stops, but you make up for it in actual driving time.

So if you're doing a shortish trip and trying to just get there without having to charge, then go a bit slower. But if you really want to eat some miles, forget about the efficiency vs speed and just go as fast as you're comfortable.

Did you ask Claude to factor in odds for speeding tickets, delays due to being pulled over and the cost of tickets and or court fees?

 

[B_Wagon136]

Did you ask Claude to factor in odds for speeding tickets, delays due to being pulled over and the cost of tickets and or court fees?

Nor is it simply "30 minutes from 10-80%." Its time getting off the freeway. Finding the stall. Getting your adapter out. Initiating charge in app or p.o.s., time getting back on the freeway, etc.

I love studying stuff like this, so not trying to be a hater. But I'd venture to say every "30 min 10-80%" dream is closer to 45 min when its said and done.

 

[tivoboy]

Driving faster will almost certainly yield shorter trips and to optimize one should drive in the 10-70% SOC range, and do more stops vs. Longer stops.. assuming quality charging on the road the charging curve Is between between 5% and 50%.. and a stop like that might take 10-12 minutes, and then back on the burn.

 

[asellus]

No need to rope in an LLM to do this level of basic number crunching, use your meatbrain.

Even using butt-numbers on the back of a napkin the math maths. The same's true for ICE vehicles.

 

[UnsungZero_OldTimeAdMan]

Same has been discussed and concluded before, before a single R2 existed. Better long distance strategy is to have shorter faster stints between stops, which also keep charging sessions shorter, and is also potentially better for battery chemistry (less SOC delta between starting and finishing %).

 

[VSG]

We'll if I had to travel 2000 miles, and if I prioritized speed over everything else, I would fly. And beat you there. And have a couple of days of free time more than you when I get there.

Point is, the equation changes drastically when your goal is something other than to get there as soon as possible.

 

[tivoboy]

We'll if I had to travel 2000 miles, and if I prioritized speed over everything else, I would fly. And beat you there. And have a couple of days of free time more than you when I get there.

Point is, the equation changes drastically when your goal is something other than to get there as soon as possible.

I did 2680 in 36 hours once. So you’d only have a day and a half on me.

(Or my me 31 years ago. ;-)

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