Patent ID: 11951964
Assignee: GM GLOBAL TECHNOLOGY OPERATIONS LLC
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 0:
1. A method comprising:
obtaining sensor data from one or more sensors onboard a vehicle that is towing a trailer, the vehicle and trailer collectively comprising a vehicle-trailer system;
monitoring, via a processor disposed onboard the vehicle, a trailer sway of the trailer using the sensor data, based on one or more parameters of the sensor data representing the trailer sway and application of a band-pass filter to the one or more parameters; and
mitigating the trailer sway, via instructions provided by the processor to one or more braking systems of the vehicle-trailer system, when it is determined that the trailer sway of the trailer is sufficient to warrant mitigation based on the one or more parameters of the sensor data representing the trailer sway and the application of the band-pass filter to the one or more parameters, wherein:
the monitoring comprises monitoring, via the processor onboard the vehicle, the trailer sway of the trailer using the sensor data, based on a hitch articulation angle of the vehicle-trailer system and a yaw rate of the vehicle, along with an application of the band-pass filter to the hitch articulation angle and to the yaw rate;
the mitigating comprises mitigating the trailer sway, via the instructions provided by the processor to the one or more braking systems of the vehicle-trailer system, when it is determined that the trailer sway of the trailer is sufficient to warrant mitigation based on the hitch articulation angle, the yaw rate, and the application of the band-pass filter to the hitch articulation angle and to the yaw rate; and
the mitigating of the trailer sway further comprises mitigating the trailer sway, via the instructions provided by the processor to a trailer braking system of the trailer for application of a calculated uniform braking based on a driver trailer brake gain setting in addition to yaw-rate and hitch articulation angle.