Patent ID: 8333157
Filing Date: 2012-12-18
Classification: B61B,B62D,E01B

Abstract:
1. A vehicle control system for controlling the path of a vehicle along an engaged rail and over a roadway, the control system comprising: a vehicle having a centerline, a chassis, an on-board computer, a series of wheels, an electric motor powering each of the wheels, a primary steering yoke and a primary steering actuator adapted to steer the vehicle via the on-board computer, a secondary steering yoke and a secondary steering actuator adapted to steer the vehicle in emergency conditions via the on-board computer; a saddle assembly adapted to engage a rail, the saddle assembly including a saddle hood and a collar, the saddle hood including downwardly extending sidewalls and inwardly directed lower edges, the collar interconnected to an end of the saddle hood, a support rod having a first end connected to the collar and a second end interconnected to the chassis, a positioning mechanism for vertically adjusting the saddle assembly relative to the chassis, a breaking mechanism for stopping the vehicle, the breaking mechanism interconnected to the saddle hood and controlled by the on-board computer; a first rail positioned above the roadway and defining a first pathway, a second rail recessed within the roadway and defining a second pathway, a transition area wherein the first rail is positioned over the second rail and a gap is formed in the first rail, wherein the vehicle is directed along the first pathway by engaging the saddle assembly with the first rail, and wherein the vehicle can be selectively transferred to the second pathway by lowering the saddle assembly to engage both the first and second rails in the transition area and by directing the saddle assembly through the gap in the first rail; a sensor array, the array including a first and second set of sensors mounted to the lower edges of the saddle hood, the first set of sensors monitoring the distance between the saddle hood and the engaged rail, the second set of sensors monitoring obstacles in the roadway, wherein the first set of sensors provides data to the on-board computer for steering the vehicle in a manner to keep the centerline over the engaged rail, and wherein the second set of sensors provides data to the on-board computer for engaging the braking mechanism in the event an obstacle is detected.