Quote:
Originally Posted by jeff88
The big selling point was that the rear wheels could turn, making it easier to turn the truck. I was just wondering why, other than a select few, more cars don't have this option, especially larger vehicles. Would this not save from having to need such a large PS pump?
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On 4 axle trucks and busses (2 front, 2 rear), they seem to have resorted to two steering axles up front in Europe.
A local outfit sells cross-steering trailers for semi's.
Renders, X-Steering
Dunno how bad it is in the US, but here in Europe things can get so tight that when these big guys turn, a triple-axle trailer may actually see one or two of them reverse, and they scrub heavily in the process.
Not good for the tyres, and it certainly takes more fuel - but wether that's visible in the overall FC is doubtful, as they spend most of their time going more or less straight.
AWS is only seen on mobile cranes these days.
Some cars have rear axles that have a bit of flex in them, and they steer along passively.