Patent ID: 7260465
Filing Date: 2007-08-21
Classification: B60K,B60W

Abstract:
1. A method of adaptively controlling the speed of an automotive vehicle having a controller comprising: detecting a ramp with the controller comprising; determining a position of an exit ramp comprises; examining road segment information for highway and ramp classifications; searching road segment information for start node identification; searching stored data for highway and ramp segment pairs that have identical start nodes; and identifying an exit ramp in response to said identical start nodes; establishing a heading component of said exit ramp; determining that the automotive vehicle has changed lanes; and determining that the automotive vehicle is on said exit ramp in response to said position, said heading component, and the automotive vehicle changing lanes; establishing a heading component of said ramp comprising at least one of ramp curvature and ramp departure angle; and adjusting the automotive vehicle speed, relative to a set speed, in response to said ramp and said heading component.