petit_bateau
Active Member
A lot of mining areas are in fact quite high up, and it would be perfectly normal for the average driver to want to be fully charged before heading out for the day.But how often is a truck driver going to charge his fully loaded Semi to 100% at Donner Pass? And Semi racing isn't a sizable motorsport oddly enough, and I've never heard of any that start with a mountainous descent. Maybe dynamic braking emerges as an emergency system for redundancy in extreme cases, but it may just as easily not.
When I first raised the issue I was in fact thinking of the various areas where I used to live in the Andes; specifically of drivers starting up on the high plateau (e.g. San Antonio de los Cobres*, 3775m) and dropping down to Salta city (1152m). That is 2,623m of descent. The same thing if dropping down from upstate (or up-province) Jujuy. Coming out of La Paz in Bolivia (3625m) the road goes pretty straight downhill or at least that's my memory as is the road in for that matter. In fact all along the Andes and the Karakorum and Himalaya the road out of a lot of the high towns and mines goes downhill in my experience. Not good places to have limitations in descending. Maybe in the USA you have different geography and geology than the rest of the world.
(A colleague at school had as his day job being an engineer for a major US OEM on semi truck racing. They seem to take it very seriously. It is really not my thing but I guess they'll be launching out of the gate at 100% SoC most of the time.)
* the name is a bit of a giveaway as to the reason why the town is there