US 12,269,472 B2
Systems and methods for determining vehicle and trailer resistance related characteristics
Todd J. Brinkman, Rochester Hills, MI (US); and Matthew Giuffre, Chelsea, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Mar. 21, 2023, as Appl. No. 18/187,163.
Prior Publication US 2024/0317228 A1, Sep. 26, 2024
Int. Cl. B60W 30/18 (2012.01)
CPC B60W 30/18072 (2013.01) [B60W 2520/10 (2013.01); B60W 2520/105 (2013.01); B60W 2530/10 (2013.01); B60W 2530/16 (2013.01); B60W 2540/12 (2013.01); B60W 2540/18 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for controlling functions of a vehicle having vehicle brakes and a trailer having trailer brakes, the system comprising:
sensors of the vehicle configured to provide sensor data comprising deceleration values across a range of speeds of the vehicle and the trailer; and
a processor configured to:
perform, based on the sensor data, a readiness check by determining whether the sensor data exceeds predetermined thresholds;
compute, based on the sensor data and when the readiness check is passed, meaning the predetermined thresholds are not exceeded, values for constants that represent aerodynamic resistance and rolling resistance of the vehicle and the trailer specifically;
save the constants as a part of a profile unique to the trailer; and
control, based on the profile, functions of the vehicle and the trailer including to apply, in proportional response to application of the vehicle brakes, the trailer brakes.