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。