US patent US12774688
Systems and methods for aftertreatment system thermal management using cylinder deactivation and/or intake-air throttling
Abstract
Systems and methods for aftertreatment system thermal management using cylinder deactivation and/or intake-air throttling are disclosed. A controller is configured to: receive a first temperature value regarding a temperature change over time regarding the aftertreatment system and a second temperature value associated with the engine; determine, based on the first temperature value being below a first threshold, that a thermal management mode is a first thermal management mode that is a warm up mode; determine, based on the first temperature value being at or above the first threshold, that the thermal management mode is a second thermal management mode that is a keep warm mode; determine, responsive to the thermal management mode being the first thermal management mode and based on comparing the second temperature value to a second threshold, an operating mode; and initiate at least one of the first operating mode or the second operating mode.