Gm Global Technolgoy Operations, Inc.

Other

Namal P Kumara

Paul A Adam

Jeffrey S Parks

Christopher Michael Churay

Gabriel T Choi

Reza Zarringhalam

Mohammadali Shahriari

Amir Takhmar

Tetyana V Mamchuk

Christopher J Trush

Michael Jay Abowd

Braden J Swantick

Xuefei Yang

Harsh Ketan Patel

Riley Stroven

A system for controlling lateral positioning in a host vehicle. The system includes a controller adapted to identify targets surrounding a planned path with at least one distance sensor on the host vehicle and determine at least one attribute for each of the targets. The controller is also adapted to determine a lane quality along the planned path with at least one optical sensor on the host vehicle and determine a first target point and a second target point based at least one on the attributes of the targets when the lane quality has degraded below a predetermined threshold. Furthermore, the controller is adapted to calculate a follow trajectory for the host vehicle based on the first and second target points and direct the host vehicle along the follow trajectory when a lane marker identification distance is less than a minimum look ahead distance for the host vehicle.

System and method for positioning a vehicle in a lane

Vehicles and related systems and methods are provided for controlling a vehicle in an autonomous operating mode. One method involves determining a current value for a range of view associated with a sensing device onboard the vehicle, determining a target value for the range of view based at least in part on a speed of the vehicle, and in response to determining the current value is less than the target value, determining a dropback adjustment distance based at least in part on a difference between target value for the range of view and an estimated distance to a closest in path (CIP) vehicle ahead of the vehicle within a current lane of travel, determining a longitudinal trajectory for the vehicle based at least in part on the dropback adjustment distance, and autonomously operating one or more actuators onboard the vehicle in accordance with the longitudinal trajectory.

Vehicle systems and related methods to autonomously increase camera range

In an exemplary embodiment, a vehicle system is provided that includes a sensor array and a processor. The sensor array is configured to generate vehicle sensor data pertaining to a target vehicle in proximity to the vehicle. The processor is coupled to the sensor array, and is configured to at least facilitate: beginning an overtake maneuver for the vehicle, via instructions provided to the drive system, when conditions for an overtake of the target vehicle by the vehicle are initially determined by the processor to be valid; subsequent to the beginning of the overtake maneuver, determining via the processor whether the conditions for the overtake of the target vehicle are still valid, based on updated sensor data reflecting variant traffic conditions; and further controlling the overtake maneuver based on the determining as to whether the conditions for the overtake of the target vehicle are still valid.

Method for completing overtake maneuvers in variant traffic conditions

A system and method of detecting and mitigating an erratic vehicle by a host vehicle. The method includes gathering sensor information on a calibratable external region surrounding the host vehicle; analyzing the sensor information to detect a target vehicle traveling in a lane and a movement of the target vehicle in the lane; determining whether the movement of the target vehicle in the lane is erratic; if erratic then designating target vehicle as erratic vehicle; assigning a risk score to the erratic vehicle; and implementing a predetermined mitigating action correlating to the assigned risk score to the erratic vehicle. The mitigating action includes one or more of: warning an operator of the host vehicle, warning a vehicle proximal to the host vehicle, and taking at least partial control of the host vehicle to further distance the host vehicle apart from the erratic vehicle.

System and method of detecting and mitigating erratic on-road vehicles

In accordance with an exemplary embodiment, methods and systems are provided for controlling automatic overtake functionality for a host vehicle. In on such exemplary embodiment, a disclosed method includes: (i) obtaining, via a plurality of sensors, sensor data pertaining to the host vehicle and a roadway on which the host vehicle is traveling; (ii) determining, via a processor, when an automatic overtake is recommended, using the sensor data in conjunction with one or more threshold values; (iii) receiving driver inputs pertaining to the automatic overtake; and (iv) adjusting, via the processor, the one or more threshold values for the automatic overtake based on the driver inputs.

Method and system to adapt overtake decision and scheduling based on driver assertions

Systems and methods for smoothing automated lane change (ALC) operations. A mission planner, upon receipt of an ALC request, sends a ALC heads up signal to a lateral control. The mission planner then begins confidence building operations, for a preprogrammed duration of time, and awaits an ALC ready signal from the lateral control. The lateral control, upon receipt of the ALC heads up, calculates an index of readiness, R, as a function of the requested ALC, a current trajectory, and a lane centering control path. When Ris less than or equal to a readiness threshold, Rt, the lateral control sends the ALC ready signal. When Ris greater than Rt, the lateral control generates a steering correction and applies the steering correction to reduce the Rand thereby stabilize the vehicle and send the ALC ready signal. Upon receiving the ALC ready signal, the ALC operation is executed.

Systems and methods for smoothing automated lane changing (ALC) operations

One general aspect includes a system to prevent a boxed-in driving situation, the system including: a memory configured to include one or more executable instructions and a processor configured to execute the executable instructions, where the executable instructions enable the processor to detect a preventable box-in driving situation; and, based on the detection of the preventable box-in driving situation, adjust a location of a trigger threshold along a vehicle path.

System and method to adjust overtake trigger to prevent boxed-in driving situations

An apparatus including a sensor for detecting a first acceleration of a target vehicle at a first time and a second acceleration of the target vehicle at a second time, a processor operative to calculate an increased distance in response to the first acceleration and the second acceleration exceeding an acceleration threshold, the processor further operative to generate a control signal indicative of the increased distance, and a vehicle controller for controlling a vehicle throttle controller and a vehicle steering controller to maintain an initial distance between the host vehicle and the target vehicle and to maintain the increased distance between the host vehicle and the target vehicle in response to the control signal.

Growing community of inventors

Ypsilanti, MI, United States of America

Namal P Kumara