Trailer hitching and backing precision guidance system...

Details Trailer hitching and backing precision guidance system... Trailer hitching and backing precision guidance system...

2009-08-08

2011-10-18

Winner, Tony H. (Department: 3611)

Land vehicles

Wheeled

Articulated vehicle

C340S431000, C340S686200

Reexamination Certificate

active

08038166

ABSTRACT:
A target unit mounted on vehicle hitch ball contains a known object target and an optical unit mounted on trailer hitch socket contains an optical sensor. A real image of known object target is projected onto image plane of optical sensor. Vehicle hitching distance and offset from optical axis, normal to image plane origin, is related to real image size and offset from image plane origin respectively. Distance and offset are displayed to driver in the form of remaining distance and relative steering commands.

REFERENCES:
patent: 6178650 (2001-01-01), Thibodeaux
patent: 6900724 (2005-05-01), Johnson
patent: 7057498 (2006-06-01), Cook et al.
patent: 2005/0285371 (2005-12-01), Ramsey et al.
patent: 2007/0132560 (2007-06-01), Nystrom et al.
patent: 2007/0205581 (2007-09-01), Wilcox
patent: 2010/0013188 (2010-01-01), Ortmann et al.

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