Re:Tesla is heading for a cash crunch
by mschuster91 on Friday April 06, 2018 @05:25AM
(#16771992)
> Musk is trying to beat the standard.
And I would not be surprised if part of this will be a massive simplification of the current "cable trees" with cables from each component to the central fuse board to something like 2 24V power rails and 2 high speed data buses (one for safety critical stuff, the rest for everything else), with plugs every 20-30cm or so, fuses inside the components themselves and everything controlled with intelligent boards in the components.
Installing the cabling tree is inarguably one of the most complex parts in building (or, for what it's worth, servicing/maintaining/extending) a car and also the part where you right now need humans in the loop. By including the power rails e.g. directly in the car's composite frame and only running a tiny strand of wire for the bus you save a boatload of money.
And I would not be surprised if part of this will be a massive simplification of the current "cable trees" with cables from each component to the central fuse board to something like 2 24V power rails and 2 high speed data buses (one for safety critical stuff, the rest for everything else), with plugs every 20-30cm or so, fuses inside the components themselves and everything controlled with intelligent boards in the components.
Installing the cabling tree is inarguably one of the most complex parts in building (or, for what it's worth, servicing/maintaining/extending) a car and also the part where you right now need humans in the loop. By including the power rails e.g. directly in the car's composite frame and only running a tiny strand of wire for the bus you save a boatload of money.