ajdelange
Well-Known Member
- First Name
- A. J.
- Joined
- Aug 1, 2019
- Threads
- 9
- Messages
- 2,883
- Reaction score
- 2,317
- Location
- Virginia/Quebec
- Vehicles
- Tesla XLR+2019, Lexus, Landcruiser, R1T
- Occupation
- EE Retired
Then he will have to live with the consequences of his decision.What if someone just wants the 105KW or the 135KW battery?
I think everyone agrees that better charging infrastructure is a thing to be devoutly wished. Just read an article that says charging infrastructure has replaced range anxiety as No. 1. on the list.I believe the infrastructure should be improved to allow those people to make that journey too.
Uh, no. Not in my experience anyway. And the physics says more or less the same thing. It is true that regen recovers much of the intertial load (which is the biggest load in town) but not all of it. Now I should point out that where I live the freeway traffic is pretty bad so that there is a fair amount of stop and go on the freeway too.The EPA rating is not for pure highway driving, it is for a combination of city and highway. EVs get better range in slower stop and go traffic than on the highway.
(75 + 30)/75 = 1.4, almost the square root of 2. Thus your drag will be doubled and if you are driving in a place where you can cruise at 75 you are not driving in a place where you are speeding up and slowing down a lot. Drag dominates inertial and is your biggest load. Did you expect otherwise?I did a trip recently to Tucson from Phoenix at highway speed (75 MPH in AZ) and the headwind was 20-30 MPH. My range dropped to 170 miles.
If there is a message here for other readers it is that you have to pay attention to this. When drag dominates your range will go down. Drag load is not recovered by regenerative braking. I admittedly am somewhat dismissive with regard to this because I used to fly small airplanes and this sort of thing is very familiar to me. When there is a headwind a pilot knows to take that into account in his planning. But don't worry. The Rivian is almost 100% certain to have tools that will make this planning or, if it comes up unexpectedly, tell the driver what to do. In a Tesla an alert appears that says "Slow down to below 65 to reach your destination" or something like that.
Life seldom rewards people with what they want just because they want it. One's choices lead to consequences.Many people may not want to choose the larger battery, in particular if they will make only 1 long range trip a year.
Then people who chose the shorter range versions should perhaps not plan to make long trips in them.The low end battery is fine for driving around town.
Then a DC fast charger will probably be built there before any of us sees his R1T.But if there were a CCS charger in Kingman ... it is just that this route is very popular in the southwest.
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