Recent content by Indy avocado

Yes and no - I am generally, as that seems to be the popular comparison point for highway range (70 or 75mph). Are these values based on the route you provided above? Because there's a lot of city streets and whatnot involved here. And besides, I got different efficiency than you using the...

I am a huge downer on the R2 range and charging. It's inadequate for what I want out of this class of vehicle. But I think that all evidence says that 2.9-3.0 is possible in good conditions on 21" wheels and tires. Perhaps you're mixing the 20" and 21" variants? the 20" ATs should land...

Understandable. But IMO you're helping to create these slugs unless you're pacing behind another car/semi that is also going to create the slug. I like to radar cruise behind someone else who's only passing semi's.

EPA highway is based on a cycle that isn't steady state. It averages well under 65mph. I like Tom, but he's just guessing in this case. His stated wind impact was limited to less than 2hrs of almost 4hrs of driving. I think he's under-estimating the impact of altitude since he never does them...

Yup. Just reiterating that a lot of the vehement disagreement is based on data that ALL AGREES when variables are properly accounted for. And if anyone wants to use my calculator that matches these data points, please do. (I need to add temperature adjustment. Give me a bit)...

Take off 3% efficiency due to 20" Defenders* vs 22" range wheels/tires and you get 328mi. Or use 20" AT to get 324mi So... Yeah, that ALSO matches. All thse variables can be modeled 😅 *(I saw 1-2% loss going from 21" range to 20" defenders)

Yes (2.95), on the 21" wheels and tires on a good day. And that equates to 265 mi. Guilty of incorrectly reading that you were estimating the R2 at nearly 300mi range. 265mi. Nobody in the real world is going to achieve more than that without hypermiling.

That's why I said never have to enter regen. Vs the 369mi the dyno numbers suggest - also within margin of error. I've been using these to anchor my calculator, so I'm quite confident in it. At sea level, R2 is 265mi on 21" AS and 240mi on 20" AT. I'd bet my R1T on it.

His test had *net zero* elevation and was performed at 5000-7000ft where there's like 15% less air mass. Elevation up/down doesn't impact range or efficiency much so long as you never have to enter regen. I believe his test is damn near best case for level ground at sea level.

Absolutely correct. I want to love Rivian, but business need "tough love" *But it's only once a year. What's a few hours a year?* ;) Gimmie the speeeeeed! I find keeping up with traffic is least stressful. That's typically 65-75mph. Did you come from a suburban or other large truck? I...

I never mentioned 800V. iX3 is MUCH better charging everywhere. I know it's more expensive. Here's R2 compared to cheaper competition on the battery technology front (C-rate / cell stress). The Chevy Bolt is a perfect match. The Trailseeker would probably be competitive if Toyota allowed...

R2 looks like a marginal improvement over 5 year old EVs. IX3 is current gen and actually stands out. https://evbench.pluginpath.com/?tab=chart&r=115%2C97%2C36%2C101%2C119%2C73&v=21&x=soc&y=chargeRate And if we look on a "technological" level (C-rate)...

I think it's actually the Toyota Rav4, Jeep Grand Cherokee, Toyota Land Cruiser, Subaru Forester, etc. As a goof, here's a Rav4 in terms of "C-rate" vs various EVs.

In theory, that's covered by the dynomometer coefficients (except powertrain efficiency). So my calculator takes these coefficients that cover rolling resistance and aerodynamic loads, use the highway test energy consumption to estimate drivetrain efficiency, and then calculates these curves...

Definitely my experience in my R1T that alternating 50-80miles an hour in heavy traffic around Chicago is more efficient than holding 65-70 steady on a rural road.