公开(公告)号：US20160230685A1

公开(公告)日：2016-08-11

申请号：US15041731

申请日：2016-02-11

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Davide Francesco MERCURI ,  Paolo OLMO ,  Davide GESSAROLI ,  Giorgio NATI

IPC: F02D41/02 ,  F02B37/16 ,  F02D41/00 ,  F01N3/08

CPC classification number: F02D41/0275 ,  F01N3/0885 ,  F02B29/04 ,  F02B37/168 ,  F02B37/18 ,  F02D41/0007 ,  F02D2009/0225 ,  F02D2009/0228 ,  F02M26/05 ,  F02M26/25 ,  Y02T10/144 ,  Y02T10/146

Abstract: A method and apparatus for regenerating a Lean NOx Trap in an internal combustion engine is disclosed. The internal combustion engine includes a Lean NOx Trap, a turbocharger having a turbine. An electronic control unit is configured to execute a regeneration event of the Lean NOx Trap, and regulate a position of an actuator affecting a rotating speed of the turbine using a closed-loop control strategy of an air pressure into an intake duct downstream of a compressor of the turbocharger and upstream of a throttle valve during the execution of the regeneration event.

Abstract translation: 公开了一种用于再生内燃机中的精益NOx捕集阱的方法和装置。 内燃机包括精益NOx捕集阱，具有涡轮的涡轮增压器。 电子控制单元被配置为执行精益NOx捕集器的再生事件，并且使用空气压力的闭环控制策略来调节影响涡轮机的转速的致动器的位置到压缩机下游的进气管道 的涡轮增压器，并且在执行再生事件期间在节流阀的上游。

公开(公告)号：US20160177859A1

公开(公告)日：2016-06-23

申请号：US14967468

申请日：2015-12-14

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Luca GATTI ,  Chiara POZZI ,  Giorgio NATI ,  Davide Francesco MERCURI ,  Luca CHIAPUSSO

IPC: F02D41/30 ,  F02D41/02

CPC classification number: F02D41/0255 ,  F02D41/0055 ,  F02D41/025 ,  F02D41/402 ,  F02D41/405 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

Abstract: A method of operating an internal combustion engine is described, which includes executing a warm up strategy of an engine aftertreatment system, wherein the warm up strategy includes injecting fuel into the engine according to a multi-injection pattern having at least one after injection.

Abstract translation: 描述了一种操作内燃机的方法，其包括执行发动机后处理系统的预热策略，其中预热策略包括根据具有至少一次喷射后的多喷射模式将燃料喷射到发动机中。