ACC and AM braking range variable based on lateral and longitudinal position of forward vehicle and curvature of road

Abstract

When employing an adaptive cruise-with-braking (ACB) system to control host vehicle braking reaction distance, a following distance limit shape (FDLS) is defined using a lateral offset function, and a lateral offset of a forward vehicle is detected and analyzed. If the vehicle has a lateral offset greater than a lateral offset defined by the lateral offset function, deceleration requests from an engine controller are limited to requesting deceleration by an engine retarder and/or a dethrottling module. If the lateral offset of the forward vehicle is less than a lateral offset defined by the lateral offset function, foundation brakes may be requested. In other embodiments, road curvature is determined, and a braking reaction distance is reduced when the radius of curvature is smaller than a threshold curvature, in order to reduce false positive braking reactions triggered by, e.g., a forward vehicle on an exit ramp while the host vehicle remains on the highway.

Dependencies are inferred from the claim text.