US 12,263,820 B2
Excessive train brake pipe flow diagnostics
Michael L. Parisian, Dexter, NY (US)
Assigned to NEW YORK AIR BRAKE, LLC, Watertown, NY (US)
Appl. No. 18/018,781
Filed by NEW YORK AIR BRAKE, LLC, Watertown, NY (US)
PCT Filed Jul. 29, 2021, PCT No. PCT/US2021/043591
§ 371(c)(1), (2) Date Jan. 30, 2023,
PCT Pub. No. WO2022/026635, PCT Pub. Date Feb. 3, 2022.
Claims priority of provisional application 63/059,371, filed on Jul. 31, 2020.
Prior Publication US 2024/0262327 A1, Aug. 8, 2024
Int. Cl. B60T 13/66 (2006.01); B60T 17/22 (2006.01)
CPC B60T 13/662 (2013.01) [B60T 17/228 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A system for monitoring for excessive loss of pressure from a brake pipe of a train, comprising:
a computer controlled brake having an electro-pneumatic control unit that is programmed to modify an amount of pressure in a brake pipe in response to a user input;
a brake pipe pressure flow node associated with the electro-pneumatic control unit, wherein the brake pipe pressure flow node includes a brake pipe pressure transducer configured to provide an amount of pressure in the brake pipe to the brake pipe pressure flow node, a main reservoir pressure transducer configured to provide an amount of pressure in a main reservoir to the brake pipe pressure flow node, and a flow transducer configured to provide an amount of flow in the brake pipe; and
wherein the brake pipe pressure flow node is programmed to determine the amount of flow in the brake pipe, to determine whether the flow in the brake pipe exceeds a predetermined threshold, and to cause an indication on a locomotive display to a train driver if the flow in the brake pipe exceeds the predetermined threshold.