公开(公告)号：WO2016130634A1

公开(公告)日：2016-08-18

申请号：PCT/US2016/017278

申请日：2016-02-10

Applicant: FCA US LLC

Inventor： SMITH, Michael A. ,  DIMAGGIO, Craig L. ,  WUTTKE, Jeffrey P. ,  BROCKER, Andrew ,  HAMILTON, Travis T. ,  HARDMAN, Ken ,  BALDWIN-SQUIB, Cody

IPC: F01N3/20 ,  F01N3/08 ,  F01N3/10 ,  F01N13/10 ,  F01N13/04 ,  F01N13/00

CPC classification number: F01N3/2073 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/106 ,  F01N3/208 ,  F01N13/008 ,  F01N13/011 ,  F01N13/04 ,  F01N13/107 ,  F01N2240/25 ,  F01N2430/02 ,  F01N2430/06 ,  F01N2610/02 ,  F01N2900/1616 ,  F01N2900/1814 ,  Y02T10/22 ,  Y02T10/24

Abstract: A system and method for utilizing fuel as an on-board reductant for selective catalytic reduction of NOx is provided and includes a controller for controlling an engine to produce a lean first exhaust stream and a rich second exhaust stream that are received in respective first and second passageways of a dual path aftertreatment system. The rich second exhaust stream reacts with NOx stored in a NOx storage and reduction catalyst of the second passageway to regenerate this catalyst and generate ammonia. The first exhaust stream and the second exhaust stream having the generated ammonia are combined in a downstream common passageway to form a combined lean exhaust gas stream where the ammonia carried therein is stored or used by an SCR catalyst of the common passageway for NOx reduction. The engine is subsequently controlled to produce a rich first exhaust stream and a lean second exhaust stream.

Abstract translation: 提供了一种用于利用燃料作为板上还原剂用于选择性催化还原NOx的系统和方法，并且包括用于控制发动机以产生稀薄的第一排气流和富集的第二排气流的控制器，所述第一排气流和第二排气流在相应的第一和第二 双路后处理系统的通道。 富含的第二废气流与存储在第二通道的NOx储存和还原催化剂中的NOx反应，以再生该催化剂并产生氨。 具有生成的氨的第一排气流和第二排气流在下游公共通道中组合以形成组合的贫排气流，其中运载在其中的氨由用于NOx还原的公共通道的SCR催化剂储存或使用。 发动机随后被控制以产生富有的第一排气流和贫的第二排气流。

公开(公告)号：WO2017204959A1

公开(公告)日：2017-11-30

申请号：PCT/US2017/028767

申请日：2017-04-21

Applicant: FCA US LLC

Inventor： SAGER, Roger C. ,  WUTTKE, Jeffrey P. ,  SCHUBRING, Brett ,  DEKAR, Joseph M. ,  DALEY, James J. ,  BLACK, Gregg T.

IPC: F02M25/08 ,  F02D41/00

CPC classification number: F02D41/004 ,  F02D41/0035 ,  F02D41/0042 ,  F02D41/0045 ,  F02D41/064 ,  F02D41/144 ,  F02D41/1459 ,  F02D2250/38 ,  F02M25/0836 ,  F02M25/0854

Abstract: An evaporative emissions (EVAP) control system (136) for a vehicle includes a purge pump (160) configured to pump fuel vapor to a direct injection (Dl) engine of the vehicle via a vapor line (164) and a purge valve (148) and a hydrocarbon (HC) sensor (168) disposed configured to measure an amount of HC in the fuel vapor. The system also includes a controller (140) configured to detect an HC vapor supply condition indicative of an operating condition of the Dl engine where engine vacuum is less than an appropriate level for delivering the fuel vapor to the Dl engine via the vapor line; and in response to detecting the HC vapor supply condition, controlling at least one of the purge pump and the purge valve, based on the measured amount of HC, to deliver a desired amount of fuel vapor to the Dl engine to decrease particulate matter (PM) produced by the Dl engine.

Abstract translation: 用于车辆的蒸发排放（EVAP）控制系统（136）包括净化泵（160），所述净化泵（160）被配置为经由蒸汽管线将燃料蒸汽泵送到车辆的直接喷射（D1）发动机 164）以及配置成测量燃料蒸气中的HC量的清除阀（148）和碳氢化合物（HC）传感器（168）。 该系统还包括控制器（140），该控制器配置成检测指示D1发动机的工作状态的HC蒸气供应状态，其中发动机真空度小于用于经由蒸气管线将燃料蒸气输送到D1发动机的适当水平; 并且响应于检测到HC蒸汽供应状况，基于所测量的HC量来控制清洗泵和清洗阀中的至少一个，以将期望量的燃料蒸气递送至D1发动机以减少颗粒物质（PM ）由Dl引擎生成。