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    METHOD OF REDUCING NOX EMISSIONS FROM AN ENGINE
    2.
    发明申请
    METHOD OF REDUCING NOX EMISSIONS FROM AN ENGINE 审中-公开
    从发动机减少NO x排放的方法

    公开(公告)号：US20170051707A1

    公开(公告)日：2017-02-23

    申请号：US15241144

    申请日：2016-08-19

    Applicant: FORD GLOBAL TECHNOLOGIES, LLC

    Inventor： James WRIGHT ,  Paspuleti Ashish Kumar NAIDU ,  Peter George BRITTLE ,  Matthew MITCHELL

    IPC: F02M26/46 ,  F02N11/08 ,  F02D11/10 ,  F02N11/04

    CPC classification number: F02M26/46 ,  B60W20/00 ,  F02D11/105 ,  F02D41/10 ,  F02D41/1462 ,  F02D2250/24 ,  F02D2250/36 ,  F02M2026/004 ,  F02N11/04 ,  F02N11/08

    Abstract: A system and method for reducing rate of increase of NOx feedgas emissions during an acceleration event in a vehicle having an engine with exhaust gas recirculation (EGR) and an electric machine, such as an integrated starter-generator (ISG) coupled to the engine include operating the electric machine to provide an assist torque and reducing engine torque accordingly in response to predicted NOx feedgas emissions exceeding a threshold. The NOx feedgas emissions may be predicted based on an exhaust gas sensor signal or a NOx model based on engine speed, engine torque, and intake EGR ratio. The engine torque may be reduced by reducing an engine torque set point. The electric machine torque may be reduced when a driver demand torque matches the reduced engine torque set point. The electric machine may be used to charge a battery in response to the driver demand torque matching the engine torque set point.

    Abstract translation: 在具有排气再循环发动机（EGR）的发动机和诸如耦合到发动机的集成起动发电机（ISG）的电机的加速事件期间，用于降低NOx进料气体排放增加速率的系统和方法包括： 操作电机以响应于预计的NOx进料气体排放超过阈值而相应地提供辅助扭矩并降低发动机扭矩。 可以基于基于发动机转速，发动机转矩和进气EGR率的废气传感器信号或NOx模型来预测NOx进料气体排放。 通过减少发动机扭矩设定点可以减小发动机转矩。 当驾驶员需求扭矩与减小的发动机扭矩设定点相匹配时，电机扭矩可能会降低。 电机可以用于响应于匹配发动机扭矩设定点的驾驶员需求扭矩而对电池充电。

    METHOD AND SYSTEM FOR REMOVING SULFUR FROM A LEAN NOX TRAP
    3.
    发明申请
    METHOD AND SYSTEM FOR REMOVING SULFUR FROM A LEAN NOX TRAP 审中-公开
    方法和系统，从一个LEO NOX TRAP去除硫

    公开(公告)号：US20170022863A1

    公开(公告)日：2017-01-26

    申请号：US15216188

    申请日：2016-07-21

    Applicant: FORD GLOBAL TECHNOLOGIES, LLC

    Inventor： Paspuleti Ashish Kumar NAIDU ,  James WRIGHT ,  Peter George BRITTLE

    IPC: F01N3/08 ,  H02K7/18 ,  H02J7/32 ,  F01N3/18

    CPC classification number: F01N3/0885 ,  F01N3/2006 ,  F01N2430/06 ,  F01N2590/11 ,  F01N2900/104 ,  F02D41/028 ,  F02D41/1444 ,  F02D2041/026 ,  F02D2200/502 ,  H02J7/32 ,  Y02A50/2322 ,  Y02T10/26

    Abstract: A method of removing sulfur from a lean NOx trap of a mild hybrid vehicle while the vehicle is stationary is disclosed, the method comprising connecting an electrical system of the vehicle to a large capacity external battery, operating an integrated starter generator driven by an engine of the vehicle as a generator to load the engine thereby allowing the engine to be operated at a higher torque level and rich of stoichiometric and storing the electrical energy produced by the integrated starter generator in the large capacity battery during the time period required for the removal of sulfur from the lean NOx trap.

    Abstract translation: 公开了一种在车辆静止时从轻度混合动力车辆的贫NOx捕集器除去硫的方法，所述方法包括将车辆的电气系统连接到大容量外部电池，操作由发动机驱动的集成起动发电机 车辆作为发电机装载发动机，从而允许发动机以更高的扭矩水平和丰富的化学计量运行，并且在整个起动发电机产生的电能在除去 来自贫NOx捕集器的硫。

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