Communications: electrical – Land vehicle alarms or indicators – For trailer
Reexamination Certificate
2005-01-04
2005-01-04
Hofsass, Jeffrey (Department: 2636)
Communications: electrical
Land vehicle alarms or indicators
For trailer
C340S465000, C340S440000, C701S072000
Reexamination Certificate
active
06838979
ABSTRACT:
This invention provides a system to detect in real time the condition of jackknifing tendency during vehicle-trailer backing up, and to provide steering direction assistance. The system utilizes rates of change of a vehicle-trailer articulation angle to determine a critical articulation angle.
REFERENCES:
patent: 4700966 (1987-10-01), Hawkins et al.
patent: 5579228 (1996-11-01), Kimbrough et al.
patent: 5912616 (1999-06-01), Valentino
patent: 6042196 (2000-03-01), Nakamura et al.
patent: 6268800 (2001-07-01), Howard
patent: 6655710 (2003-12-01), Lindell et al.
Chin Yuen-Kwok
Deng Weiwen
Lee Yong H.
Blount Eric
General Motors Corporation
Hofsass Jeffrey
Marra Kathryn A.
LandOfFree
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