Land vehicles – Wheeled – Articulated vehicle
Reexamination Certificate
2005-07-26
2005-07-26
English, Peter C. (Department: 3616)
Land vehicles
Wheeled
Articulated vehicle
C280S407100, C280S149200, C177S137000, C180S024020, C340S431000, C340S440000
Reexamination Certificate
active
06921100
ABSTRACT:
The present invention relates to a system for adjusting weight distribution throughout all axle groups of the truck and trailer. The trailer has at least one axle group mounted on a pair of rails attached to the frame of the trailer. These axle groups are locked in position on the rails by locking pins. The system for adjusting weight distribution according to the present invention measures the weight on every axle group on the truck and trailer. The measurement may be of weight directly by load cells etc. or indirectly, by taking measurements from the air suspension system to calculate weight. The measurements are delivered as an electrical signal to one or more microprocessors capable of receiving the electrical signals and calculating the optimum position of the axle group on the trailer. The position of the trailer axle groups relative to the rails is also determined and the position delivered to the microprocessor(s). The microprocessor(s) is programmed to calculate the weight on each axle group and determine any change in position of the trailer axle group(s) on the rails to optimize the weight distribution. The information is presented to the driver on a display located in the cab of the truck. The system further includes apparatus to lock and unlock the locking pins that lock the trailer axle group(s) in position on the rails. The system also includes a communication interface between the truck and the trailer.
REFERENCES:
patent: 4353565 (1982-10-01), Smith et al.
patent: 5167289 (1992-12-01), Stevenson
patent: 5476277 (1995-12-01), Schueman
patent: 5780782 (1998-07-01), O'Dea
patent: 5863057 (1999-01-01), Wessels
patent: 6203045 (2001-03-01), Kyrtsos et al.
Iankoulov Dimitre
Mantini John
English Peter C.
Volpe and Koenig P.C.
Wheel Monitor Inc.
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