US 8,972,147 B2 · ACC and AM braking range variable based on internal and external factors

Abstract

When employing an adaptive cruise-with-braking (ACB) system to control host vehicle braking reaction distance, a plurality of trigger conditions (e.g., environmental parameters) are monitored. If one or more of the monitored parameters exceeds a predefined threshold, a trigger event is detected, and at least one of a braking reaction distance (BRD) and a following distance limit shape (FDLS) are adjusted. The BRD and FDLS adjustments may be predefined according to the type and/or magnitude of the trigger event. Trigger events may be weighted or prioritized such that higher priority trigger event types correspond to larger BRD reductions, etc. Monitored trigger conditions may include adverse weather, dangerous road terrain or topography, high traffic density, erratic forward vehicle behavior, and the like.

Claims20

Dependent claims

An adaptive cruise-with-braking (ACB) system that facilitates modifying or adjusting a braking reaction distance as a function of a detected trigger event, comprising:

a sensor on a host vehicle that detects a forward vehicle;
a deceleration system that executes one or more deceleration requests;
a controller having a memory that stores, and a processor that executes, computer-executable instructions for:
setting an initial braking reacting distance (BRD);
defining a following distance limit shape (FDLS) as a function of a lateral offset function;
monitoring one or more trigger conditions;
detecting a trigger event;
at least one of:
adjusting the BRD by a predetermined distance;
and
adjusting the shape of the FDLS;
as a function of the type of trigger event detected;
prior to detection of the trigger event, restricting foundation braking while permitting dethrottling and engine retardation;
and
permitting foundation braking after detection of the trigger event.

12 more elements

Dependencies are inferred from the claim text.

ACC and AM braking range variable based on internal and external factors

Life of this patent

ACC and AM braking range variable based on internal and external factors

Life of this patent

Abstract

Claims20