Too new to know a price but this is a new approach for reversing
when towing. It looks like it turns the rig into a center-pivoting
unit when the backing is started in a rig-straight position. One
distinguishing thing is that it is 'automatic' in its operation. It also
uses dual receivers on the tow vehicle.
The Company [Inventor]:
http://autobacking.com/
Their Australian Connection [Prototype/Developer]:
http://migmengineering.com.au/
The Patent:
http://www.uspto.gov/web/patents/patog/ ... 30129.html
http://www.patentstorm.us/patents/8360457.html
I believe there have been other trailer steering systems that used
compressed air or hydraulic pumps or such. This system doesn't use
either.
Cheers,
Norm/mezmo