US 12,122,352 B2
Systems and methods for more accurately adjusting traffic predictions for the intended use of optimizing battery pre-charging
Shannon Alicia Wrobel, Erlanger, KY (US); and Joshua D. Payne, Erlanger, KY (US)
Assigned to TOYOTA MOTOR ENGINEERING & MANUFACTURING NORTH AMERICA, INC., Plano, TX (US)
Filed by Toyota Motor Engineering & Manufacturing North America, Inc., Plano, TX (US)
Filed on Jun. 6, 2017, as Appl. No. 15/615,803.
Prior Publication US 2018/0345801 A1, Dec. 6, 2018
Int. Cl. G01C 21/34 (2006.01); B60W 20/12 (2016.01); G06Q 10/047 (2023.01); G08G 1/01 (2006.01)
CPC B60W 20/12 (2016.01) [G01C 21/3492 (2013.01); G06Q 10/047 (2013.01); G08G 1/0112 (2013.01); G08G 1/0129 (2013.01); B60L 2240/68 (2013.01); B60L 2240/70 (2013.01); B60L 2240/80 (2013.01); G08G 1/0141 (2013.01); Y02T 90/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
upon a vehicle reaching a second link of an initial route, obtaining historical measured traffic conditions data and a related weighting term for the second link, wherein the initial route comprises a first link traversed by the vehicle prior to reaching the second link and the weighting term is configured as a traffic conditions weighting term;
measuring current traffic conditions at the second link of the initial route while the vehicle is traveling in the second link of the initial route;
updating the historical measured traffic conditions data for the second link of the initial route with the current, measured traffic conditions of the second link of the initial route;
determining a difference between a traffic conditions prediction for the second link of the initial route that was predicted while the vehicle was traveling in a first link of the initial route and the updated historical measured traffic conditions data;
updating the related weighting term for the second link of the initial route based upon the determined difference;
storing the updated, related weighting term in association with the updated historical measured traffic conditions data;
upon the vehicle traversing a subsequent route, adjusting the traffic conditions prediction for the second link of the subsequent route based on the updated, related weighted term, wherein the initial route and the subsequent route are identical and the subsequent route comprises a first link and a second link; and
adjusting, by a vehicle controller, operations of the vehicle while the vehicle is traveling on the subsequent route to control a pre-charge timing for a battery of the vehicle based on the adjusted traffic conditions prediction, wherein adjusting operations of the vehicle to control the pre-charge timing for the battery of the vehicle comprises operating an internal combustion engine of the vehicle while the vehicle is traveling on the subsequent route to pre-charge the battery to a determined state of charge prior to reaching the second link of the subsequent route.