公开(公告)号：US10054019B2

公开(公告)日：2018-08-21

申请号：US15413106

申请日：2017-01-23

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Giacomo Latrofa ,  Giovanni Montinaro ,  Fabrizio Ramolivo ,  Luisa Cusanno ,  Matteo Venturini ,  Barbara Maisola

IPC: F01N3/00 ,  F01N3/08 ,  F01N13/08 ,  F02D41/02

CPC classification number: F01N3/0885 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N13/082 ,  F01N2900/04 ,  F01N2900/1402 ,  F01N2900/1404 ,  F01N2900/1614 ,  F02D41/0225 ,  F02D41/0275 ,  F02D41/1445 ,  F02D41/1463 ,  F02D2200/0806 ,  F02D2200/0808 ,  F02D2200/501 ,  Y02T10/24 ,  Y02T10/47

Abstract: A method and apparatus are disclosed for controlling the operation of an aftertreatment system for a motor vehicle having a Lean NOx Trap and a tail pipe for conveying exhaust gasses from the LNT to the external environment. Values are calculated for a NOx content in the exhaust gasses flowing in the tail pipe and the quantity of NOx stored in the LNT. A DeNOx request index is calculated as a function of these values. A raw threshold value of the DeNOx request index is calculated as a function of a LNT temperature and of an exhaust gas mass flow. A corrected threshold value of the DeNOx request index is calculated as a function of the raw threshold value of the DeNOx request index and of a correction factor. A DeNOx regeneration is initiated when the calculated value of the DeNOx request index is larger than the corrected threshold value.

公开(公告)号：US10557406B2

公开(公告)日：2020-02-11

申请号：US15595083

申请日：2017-05-15

Applicant: GM Global Technology Operations LLC

Inventor： Serena Tordin ,  Fabrizio Ramolivo ,  Francesco Castorina

IPC: F02B29/04 ,  F02M35/10

Abstract: A system according to the present disclosure includes a coolant flow request module and a pump control module. The coolant flow request module is configured to determine a coolant flow request based on at least one of (i) an outlet temperature of a compressor disposed upstream of a heat exchanger of a charge air cooler, and (ii) an efficiency of a radiator of the charge air cooler. The pump control module is configured to control an output of a pump based on the coolant flow request. The pump circulates coolant through the radiator of the charge air cooler and through the heat exchanger of the charge air cooler when the pump is activated. The heat exchanger is disposed upstream of an intake manifold of an engine.