US patent US12774669
Integration of electric heater into aftertreatment catalyst thermal management
Abstract
A method for increasing a temperature of an exhaust gas to a target temperature is provided. The method includes receiving, by a controller, a warm up time for the temperature of the exhaust gas to reach the target temperature; receiving, by the controller, a target emissions based at least on a target energy and an emissions value produced over an elapsed time interval relative to the warm up time; receiving, by the controller, an allowable heater power based at least on the target emissions; and operating, by the controller, a heater downstream from an engine of a vehicle with a heater power command at or below the allowable heater power to heat the exhaust gas to the target temperature.