公开(公告)号：US20150047319A1

公开(公告)日：2015-02-19

申请号：US13967731

申请日：2013-08-15

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Thomas Larose, JR. ,  Christopher Whitt ,  Christopher C. Swoish ,  Joshua Clifford Bedford

IPC: F01N3/18

CPC classification number: F01N3/18 ,  F01N3/035 ,  F01N3/106 ,  F01N3/208 ,  F01N2900/0412 ,  F01N2900/1411 ,  F01N2900/1602 ,  F01N2900/1606 ,  F01N2900/1611 ,  F01N2900/1622 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A vehicle and a method of determining a reductant storage capacity set point of a selective catalytic reduction filter (SCRF) of an exhaust treatment system of a vehicle are disclosed. The method includes determining a storage estimate of a reductant inside the SCRF and determining a particulate estimate in the SCRF representative of an amount of particulate matter collected inside the SCRF. The method also includes determining a particulate correction factor from the particulate estimate and calculating, via a controller, a set point value of the reductant in the SCRF by computing together the particulate correction factor and the storage estimate to determine the reductant storage capacity set point of the SCRF.

Abstract translation: 公开了车辆和确定车辆排气处理系统的选择性催化还原过滤器（SCRF）的还原剂储存容量设定点的方法。 该方法包括确定SCRF内的还原剂的储存估计值，并确定SCRF中颗粒物估计值代表在SCRF内部收集的颗粒物质的量。 该方法还包括从微粒估计确定微粒校正因子，并通过控制器计算SCRF中还原剂的设定值，一起计算微粒校正因子和储存估计值，以确定还原剂储存容量设定点 SCRF。

公开(公告)号：US20140371054A1

公开(公告)日：2014-12-18

申请号：US13919040

申请日：2013-06-17

Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC

Inventor： Christopher Whitt ,  Thomas Larose, JR. ,  Christopher C. Swoish ,  Joshua Clifford Bedford

IPC: B01J38/00

CPC classification number: B01J38/00 ,  B01D53/94 ,  B01D53/9418 ,  B01D53/9477 ,  B01D53/9495 ,  B01D53/96 ,  B01D2251/206 ,  B01D2251/2067 ,  B01D2255/20723 ,  B01D2255/20769 ,  B01D2255/20776 ,  B01D2255/50 ,  B01D2258/012 ,  B01J38/12 ,  Y02A50/2325 ,  Y02T10/24

Abstract: A system and method for adapting the clean filter correction map for a selective catalyst reduction filter SCRF of an exhaust gas aftertreatment system are provided. The system may be in fluid communication with an engine of a vehicle. The system may include a first pressure sensor and a second pressure. A differential pressure module is in communication with the first pressure sensor and the second pressure sensor and configured to generate a delta pressure signal corresponding to a pressure drop between the first pressure sensor and the second pressure sensor. The system may also include a controller configured to determine a number of completed regeneration events of the SCRF; compare the number of completed regeneration events to an evaluation element; and enable an adaptation module by executing one of a first control action, a second control action, and a third control action.

Abstract translation: 本发明提供了一种用于排气后处理系统的选择性催化还原过滤器SCRF的清洁过滤器校正图的系统和方法。 系统可以与车辆的发动机流体连通。 该系统可以包括第一压力传感器和第二压力。 差压模块与第一压力传感器和第二压力传感器连通，并被配置为产生对应于第一压力传感器和第二压力传感器之间的压降的增量压力信号。 该系统还可以包括配置成确定SCRF的完成的再生事件的数量的控制器; 将完成的再生事件的数量与评估要素进行比较; 并且通过执行第一控制动作，第二控制动作和第三控制动作中的一个来启用适配模块。