US 12,442,322 B1
Vehicle power systems and methods
Alex Dylan Harrington, Nineveh, IN (US); and Cami Brigette Ethington, Nashville, IN (US)
Assigned to Cummins Emission Solutions Inc., Columbus, IN (US)
Filed by Cummins Emission Solutions Inc., Columbus, IN (US)
Filed on Jul. 18, 2024, as Appl. No. 18/777,270.
Int. Cl. F01N 3/20 (2006.01); F01N 11/00 (2006.01)
CPC F01N 3/2013 (2013.01) [F01N 11/002 (2013.01); F01N 2240/16 (2013.01); F01N 2560/06 (2013.01); F01N 2900/08 (2013.01); F01N 2900/104 (2013.01); F01N 2900/1404 (2013.01); F01N 2900/1602 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A controller for a vehicle power system comprising (i) a vehicle including a battery, an alternator powered by an engine, and an exhaust aftertreatment system including a first exhaust aftertreatment component, a first temperature sensor, and a first heater, and (ii) an external power source separate from the vehicle, the controller configured to:
receive a first temperature signal from the first temperature sensor, the first temperature signal indicative of a current temperature of the first exhaust aftertreatment component;
direct a first power amount to the first heater from the external power source when the current temperature of the first exhaust aftertreatment component is less than a first target temperature;
direct a second power amount to the first heater from the alternator in addition to the first power amount when a key-on signal associated with a key-on event of the vehicle is received; and
provide an indication when the current temperature of the first exhaust aftertreatment component reaches the first target temperature, the indication indicating that the external power source is disconnectable from the first heater.