Motor vehicles – Steering gear – With electric power assist
Reexamination Certificate
2005-02-15
2005-02-15
Lerner, Avraham (Department: 3611)
Motor vehicles
Steering gear
With electric power assist
C180S235000, C180S411000, C280S442000, C701S041000, C340S431000
Reexamination Certificate
active
06854557
ABSTRACT:
A vehicle control system that selectively provides rear-wheel steering to prevent a vehicle-trailer from jackknifing during a back-up maneuver. The system senses a steering angle of the vehicle, a speed of the vehicle and a hitch angle between the vehicle and the trailer. The system calculates an equilibrium hitch angle that is a steady-state hitch angle position based on the steering angle and the vehicle speed, and a pseudo-equilibrium hitch angle that is a steady-state hitch angle at a maximum rear-wheel steering input based on the steering angle and the vehicle speed. The system then determines whether the rear-wheel steering should be provided based on a predetermined relationship between the sensed hitch angle, the equilibrium hitch angle and the pseudo-equilibrium hitch angle.
REFERENCES:
patent: 5001639 (1991-03-01), Breen
patent: 5097250 (1992-03-01), Hernandez
patent: 5247442 (1993-09-01), Kendall
patent: 5579228 (1996-11-01), Kimbrough et al.
patent: 5912616 (1999-06-01), Valentino
patent: 6268800 (2001-07-01), Howard
patent: 6292094 (2001-09-01), Deng et al.
patent: 6560524 (2003-05-01), Lin et al.
patent: 6640170 (2003-10-01), Klein et al.
patent: 6655710 (2003-12-01), Lindell et al.
Deng Weiwen
Lee Yong Han
General Motors Corporation
Lerner Avraham
Marra Kathryn A.
LandOfFree
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