Quote:
Originally Posted by NomoTesla
The tradeoff when on a road trip is the difference between greater efficiency and skipping a charge stop versus accelerating and driving faster but with increased charging stops. I'm not sure which one is faster in the real world. But at least when I drive efficiently I'm also saving wear-and-tear. Not a bad thing when driving 3,000 miles roundtrip.
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Acceleration per say is meaningless in a long trip, a few seconds here and there in a 10 hour trip is not important.
Under normal conditions, driving faster gets you to your destination quicker. Basically there is an efficiency above which it would be faster and under which it would be slower, but it is lower than you'd think. In bad conditions, you can perhaps hit this limit at way slower speeds.
I played around with ABRP to see the hypothetical effect. Say with my current default settings (120% speed limit, charging overhead set at 5 minutes) a trip to Halifax 1288km away is estimated to take 12h7m (10h26 driving, 1h27 charging with 3 stops).
If I set it to cruise at 160% of the speed limit, I am now needing 5 charges... but the overall time is 10h45 (7h54 driving, 2h26 charging).
At 200% speed limit, which if I recall the speed limits along that trip correctly would actually be faster than the iX can actually go, ABRP says 8 charges now, but only 10h29m overall (6h23 driving and 3h25 charging)
You start getting very diminishing returns for the extra speed at the top end.
The tipping point as of now is 193% of the speed limit where you get the fastest route at 10h25m total.
This equates to driving at 193km/h (120mph) where the limit is 100km/h(62mph) and 212km/h (133mph) where it is 110km/h(70mph) [which is faster than the ix can even go].