US 12,176,130 B2
Systems and resistors for dynamic braking
Sudeep Pradhan Sadananda Rao, Bangalore (IN); Jaime Garcia, Lawrence Park, PA (US); Mahantesh Hosur, Bangalore (IN); Jeffrey John Wolff, Erie, PA (US); and Laura Cooper, Erie, PA (US)
Assigned to Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed by Transportation IP Holdings, LLC, Norwalk, CT (US)
Filed on Jan. 24, 2022, as Appl. No. 17/582,827.
Application 16/856,503 is a division of application No. 16/193,717, filed on Nov. 16, 2018, granted, now 10,665,369, issued on May 26, 2020.
Application 17/582,827 is a continuation in part of application No. 16/856,503, filed on Apr. 23, 2020, granted, now 11,239,008.
Prior Publication US 2022/0148766 A1, May 12, 2022
Int. Cl. H01C 1/08 (2006.01); B60L 7/06 (2006.01); B61H 11/00 (2006.01); H01C 7/00 (2006.01); H01C 13/02 (2006.01); H01C 17/00 (2006.01)
CPC H01C 1/08 (2013.01) [B60L 7/06 (2013.01); H01C 7/00 (2013.01); H01C 13/02 (2013.01); H01C 17/00 (2013.01); B60L 2200/26 (2013.01); B61H 11/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A power system comprising:
a power source electrically connected to an electrical intermediary device via one or more switch devices, the electrical intermediary device configured to convey electric current generated by a vehicle on a route as the vehicle travels along the route;
a resistor grid electrically connected to the electrical intermediary device via the one or more switch devices, the resistor grid comprising multiple resistors electrically connected to each other in a circuit, at least a first resistor of the multiple resistors including a body that extends along a center axis of the body from a first terminal end of the body to a second terminal end of the body, the body including a porous matrix that defines a network of pores, at least some of the pores in the network being interconnected and configured to receive flow therethrough of a cooling fluid, the porous matrix continuously extending along an entire cross-sectional surface area of the body perpendicular to the center axis; and
a controller operably connected to the one or more switch devices and configured to control the one or more switch devices to direct an excess portion of the electric current received from the electrical intermediary device to the resistor grid for the multiple resistors to dissipate the excess portion of the electric current as heat.