Patent ID: 11912311
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method of detecting and mitigating an erratic vehicle by a host vehicle, comprising:
gathering external sensor information on an external region surrounding the host vehicle;
analyzing the external 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 meets at least one predetermined condition for being the erratic vehicle;
assigning a risk score to the target vehicle when the movement of the target meets the at least one predetermined condition for being the erratic vehicle; and
implementing a predetermined mitigating action correlating to the assigned risk score to the target vehicle;
wherein the predetermined mitigating action includes at least one 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 increase a distance between the host vehicle and the target vehicle; and
wherein determining whether the movement of the target vehicle in the lane meets the at least one predetermined condition for being the erratic vehicle includes:
analyzing the external sensor information to determine a target vehicle centerline and a lane centerline; and
determining a frequency of oscillation when the target vehicle centerline oscillates over the lane centerline above a predetermined lateral off-set distance; and

wherein the at least one predetermined condition includes the frequency of oscillation is above a predetermined frequency.