US 12,325,456 B2
Systems and methods for detecting brake system anomalies
James A. Oswald, Coggon, IA (US); Ann K. Grimm, Cedar Rapids, IA (US); Kevin Angel, Marion, IA (US); James Trainor, Cedar Rapids, IA (US); Phillip A. Burgart, Cedar Rapids, IA (US); and Kendrick W. Gawne, Cedar Rapids, IA (US)
Assigned to Westinghouse Air Brake Technologies Corporation, Pittsburgh, PA (US)
Filed by Westinghouse Air Brake Technologies Corporation, Pittsburgh, PA (US)
Filed on May 6, 2021, as Appl. No. 17/313,502.
Prior Publication US 2022/0355781 A1, Nov. 10, 2022
Int. Cl. B61L 15/00 (2006.01); B60T 8/17 (2006.01); B60T 17/22 (2006.01); B61L 23/04 (2006.01); B61L 25/02 (2006.01); G06N 5/04 (2023.01); G06N 20/00 (2019.01); G06V 20/56 (2022.01)
CPC B61L 15/0054 (2013.01) [B60T 8/1705 (2013.01); B60T 17/221 (2013.01); B60T 17/228 (2013.01); B61L 15/0018 (2013.01); B61L 15/0081 (2013.01); B61L 23/041 (2013.01); B61L 25/021 (2013.01); B61L 25/023 (2013.01); G06N 5/04 (2013.01); G06N 20/00 (2019.01); G06V 20/56 (2022.01); B60T 2270/406 (2013.01); B60T 2270/88 (2013.01)] 43 Claims
OG exemplary drawing
 
1. A method, comprising:
detecting a first pressure and a second pressure of a fluid in a brake pipe of a vehicle system that includes a plurality of vehicles, the brake pipe extending from a lead vehicle of the plurality of vehicles to an end vehicle of the plurality of vehicles, the brake pipe including a plurality of sections, and the first pressure being measured in the lead vehicle and the second pressure being measured in the end vehicle;
determining a pressure differential signature between the first pressure and the second pressure;
evaluating the pressure differential signature with a machine learning model including a plurality of hidden layers, each hidden layer of the plurality of hidden layers corresponding to a different section of the plurality of sections, to determine whether a blockage or a leak exists in the brake pipe and which section or sections of the plurality of sections the blockage or the leak exists; and
responsive to determining a blockage or a leak exists, adjusting a pressure of the fluid in the brake pipe at a location past the section or sections for which the blockage or the leak is determined.