No, that's what brakes are for? Also, a usual motor brake with a dampener (not the r word) works just fine.

Seems we actually have rules that specify the speed you are allowed to drive downhill and what system has to be on board and don't leave it to the "free market" to come up with the cheapest but otherwise most annoying system possible. Who would have thunk.

Edit: looks like Austria came up with a noise level of 80dB (like a lawn mower, so still fairly loud) first and truck manufacturers adapted