US 12,304,345 B2
Systems and methods for improving initial range prediction when towing
Alexander Moravec, Superior Township, MI (US)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Mar. 2, 2023, as Appl. No. 18/177,405.
Prior Publication US 2024/0317106 A1, Sep. 26, 2024
Int. Cl. B60L 58/12 (2019.01); B60W 40/12 (2012.01); G07C 5/00 (2006.01)
CPC B60L 58/12 (2019.02) [B60W 40/12 (2013.01); G07C 5/004 (2013.01); B60L 2200/28 (2013.01); B60L 2240/26 (2013.01); B60L 2240/70 (2013.01); B60L 2250/16 (2013.01); B60L 2260/52 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method for predicting towing fuel economy, comprising:
generating a calibration map,
wherein:
the calibration map correlates a towing fuel economy factor to a ratio of

OG Complex Work Unit Math
 versus a ratio of

OG Complex Work Unit Math
 and
ATrailer is a frontal area of a trailer, AVehicle is a frontal area of a vehicle,
MTrailer is a mass of the trailer, and MVehicle is a mass of the vehicle;
calculating the towing fuel economy factor from the calibration map;
calculating a towing range, using the towing fuel economy factor; and
calculating a towing distance to empty, using the towing range.