Abstract:
A cross-traffic detection system suitable for use on an automated vehicle includes an object-detector and a controller. The object-detector is used to determine locations of a moving-object relative to a host-vehicle. Each of the locations is indicated by a lateral-distance and a longitudinal-distance of the moving-object from the host-vehicle. The controller is in communication with the object-detector. The controller is configured to accumulate a plurality of first-longitudinal-distances of a first-vehicle at a plurality of predetermined-lateral-distances, and determine a path-history of the first-vehicle based on linear-interpolation between successive instances of the plurality of first-longitudinal-distances at corresponding instances of the plurality of predetermined-lateral-distances. The controller is also configured to determine that a second-vehicle is following the path-history of the first-vehicle when the second-vehicle passes within an offset-distance to the path-history that is less than an offset-threshold, and estimate a crossing-distance from the host-vehicle based on the path-history and the offset-distance.
Abstract:
A lane-change system suitable for use on an automated vehicle includes a turn-signal-actuator, an object-detector, a location-device, and a controller. The turn-signal-actuator is operable to an operation-state by an operator of a host-vehicle. The operation-state includes a left-state, a right-state, and an off-state. The object-detector is used to detect the presence of an other-vehicle proximate to the host-vehicle. The location-device is used to determine a location of the host-vehicle on a digital-map. The controller is in communication with the turn-signal-actuator, the object-detector, and the location-device. The controller determines when the operator intends to pass the other-vehicle or slow down to make a turn or exit the highway based on the operation-state of the turn-signal-actuator and the digital-map.
Abstract:
A method for operating a radar system on a vehicle to reduce nuisance alerts caused by a stationary structure proximate to the vehicle. The method includes determining a stationary count indicative of the number of targets detected by the radar system that are within a travel path of the vehicle and are classified by the radar system as stationary, and indicating that the vehicle is proximate to a stationary structure if the stationary count is greater than a count threshold.
Abstract:
A lane-change system suitable for use on an automated vehicle includes a camera, a location-device, and a controller. The camera is used to capture an image of a roadway traveled by a host-vehicle. The location-device is used to determine a location of the host-vehicle on a digital-map. The digital-map includes a lane-count of the roadway traveled by a host-vehicle. The controller is in communication with the camera and the location-device. The controller is configured to determine a classification of a lane-marking present in the image as one of a dashed-line and a solid-line, and determine a position of an alternate-lane, said alternate-lane characterized as adjacent to a present-lane traveled by the host-vehicle and available for travel by the host-vehicle, wherein the position is determined based on the lane-count and the classification.
Abstract:
A lane-keeping system for an automated vehicle includes a lane-detector, an object-detector, and a controller. The lane-detector indicates which lane of a roadway is occupied by a host-vehicle. The object-detector detects objects proximate to the host-vehicle. The controller is in communication with the lane-detector and the object-detector. The controller is configured to operate the host-vehicle to follow a first-lane using the lane-detector when no object is detected by the object-detector in the first-lane that warrants a lane-change and no lane-change from the first-lane is initiated by an operator of the host-vehicle, and allow a lane-change to a second-lane when initiated by the operator. The controller is also configured to initiate a lane-change to the first-lane from the second-lane after a first-time-interval after the lane-change to the second-lane that was initiated by the operator when the first-lane is available for unimpeded travel by the host-vehicle for greater than a second-time-interval.
Abstract:
A cross-traffic detection system suitable for use on an automated vehicle includes an object-detector and a controller. The object-detector is used to determine locations of a moving-object relative to a host-vehicle. Each of the locations is indicated by a lateral-distance and a longitudinal-distance of the moving-object from the host-vehicle. The controller is in communication with the object-detector. The controller is configured to accumulate a plurality of first-longitudinal-distances of a first-vehicle at a plurality of predetermined-lateral-distances, and determine a path-history of the first-vehicle based on linear-interpolation between successive instances of the plurality of first-longitudinal-distances at corresponding instances of the plurality of predetermined-lateral-distances. The controller is also configured to determine that a second-vehicle is following the path-history of the first-vehicle when the second-vehicle passes within an offset-distance to the path-history that is less than an offset-threshold, and estimate a crossing-distance from the host-vehicle based on the path-history and the offset-distance.
Abstract:
A vehicle control system for operating an automated vehicle in a fashion more conducive to comfort of an occupant of the automated vehicle includes a sensor, an electronic-horizon database, vehicle-controls, and a controller. The sensor is used to determine a centerline of a travel-lane traveled by a host-vehicle. The electronic-horizon database indicates a shape of the travel-lane beyond where the sensor is able to detect the travel-lane. The vehicle-controls are operable to control motion of the host-vehicle. The controller is configured to determine when the database indicates that following the shape of the travel-lane beyond where the sensor is able to detect the travel-lane will make following the centerline by the host-vehicle uncomfortable to an occupant of the host-vehicle, and operate the vehicle-controls to steer the host-vehicle away from the centerline when following the centerline will make the occupant uncomfortable.