THERMAL MANAGEMENT OF DIESEL PARTICULATE FILTER REGENERATION EVENTS

摘要

Various embodiments of an apparatus, system, and method are disclosed for managing regeneration event characteristics. For example, in one embodiment, an apparatus (130) for controlling the temperature of the outlet exhaust of an internal combustion engine (110) for a regeneration event on a particulate matter filter (150) includes a regeneration module (260) and a fuel injection strategy module (420). The regeneration module is configured to determine a desired engine outlet exhaust gas temperature (440) for a regeneration event. The fuel injection strategy module is configured to determine a regeneration fuel injection strategy for achieving the desired engine outlet exhaust gas temperature. The regeneration fuel injection strategy includes a main fuel injection (510), a first heat post-injection (520), and a second heat post- injection (530). In certain implementations, the fuel injection strategy also includes at least one non-heat post-injection (540, 550) for achieving a desired particulate filter inlet exhaust gas temperature.