Patent ID: 9302682
Filing Date: 2016-04-05
CPC Classification: B61C,F01P,F02D,Y02T

Claim Text:
1. A compressed air system for a railroad locomotive comprising: a first air compressor; a second air compressor; a layover heater for maintaining a temperature of an engine coolant; and a control system, said control system operatively connected to said first air compressor, said second air compressor, and said layover heater, wherein said control system controls said layover heater and said first and second air compressors by: monitoring demand for electrical power by said first air compressor, said second air compressor, and said layover heater; and prioritizing and allocating electrical power to said first air compressor, said second air compressor, and said layover heater to maintain a desired level of compressed air and a desired coolant temperature; and wherein said control system operating the compressed air system (a) utilizes a first control logic when the first air compressor, the second air compressor, and the layover heater are powered by an onboard electrical power source, and (b) utilizes a second control logic different from the first control logic when the first air compressor, the second air compressor, and the layover heater are powered by an offboard electrical power source; further comprising a heat exchanger, wherein the control system controls heat generated by at least one of the first air compressor and the second air compressor to maintain the temperature of the engine coolant.