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    Engine control for low emission vehicle starting
    3.
    发明授权
    Engine control for low emission vehicle starting 有权
    低排放车辆启动发动机控制

    公开(公告)号：US07293406B2

    公开(公告)日：2007-11-13

    申请号：US10692413

    申请日：2003-10-22

    Applicant: Donald James Lewis ,  James Michael Kerns ,  Matthew John Gerhart ,  Ralph Wayne Cunningham

    Inventor： Donald James Lewis ,  James Michael Kerns ,  Matthew John Gerhart ,  Ralph Wayne Cunningham

    IPC: F01N3/00

    CPC classification number: F01N3/222 ,  F01N3/2006 ,  F01N3/225 ,  F01N3/32 ,  F01N3/323 ,  F01N9/005 ,  F01N13/009 ,  F01N2430/06 ,  F01N2430/08 ,  F02D41/0245 ,  F02D41/025 ,  F02D41/0255 ,  F02D41/064 ,  F02D41/1441 ,  F02D41/1446 ,  F02D41/1448 ,  F02D41/187 ,  F02D2200/0404 ,  F02D2200/0406 ,  F02D2200/0414 ,  F02D2200/602 ,  F02M26/21 ,  F02M26/47 ,  F02M26/55 ,  Y02A50/2322 ,  Y02T10/26 ,  Y02T10/47

    Abstract: A method for rapidly heating an emission control device in an engine exhaust uses excess air added to the exhaust via an air introduction device. After an engine cold start, the engine is operated to raise exhaust manifold temperature to a first predetermined value by operating the engine with a lean air-fuel ratio and retarded ignition timing. Once the exhaust manifold reaches the predetermined temperature value, the engine is switched to operate rich and air is added via the air introduction device. The added air and rich exhaust gas burn in the exhaust, thereby generating heat and raising catalyst temperature even more rapidly. The rich operation and excess air are continued until either engine airflow increases beyond a pre-selected value, or the emission control device reaches a desired temperature value. After the emission control device reaches the desired temperature, the engine is operated substantially around stoichiometry. Further, a method is described for adaptively learning pump airflow using feedback from an exhaust gas oxygen sensor.

    Abstract translation: 用于对发动机排气中的排放控制装置进行快速加热的方法通过空气引入装置使添加到排气中的多余的空气。 在发动机冷启动之后，通过以稀空燃比和延迟点火正时操作发动机来操作发动机以将排气歧管温度升高到第一预定值。 一旦排气歧管达到预定温度值，则发动机被切换以运行丰富，空气通过空气引入装置添加。 排气中增加的空气和浓缩的废气燃烧，从而更快地产生热量和提高催化剂温度。 丰富的操作和多余的空气继续进行，直到发动机气流增加超过预选值，或者排放控制装置达到期望的温度值。 在排放控制装置达到所需温度之后，发动机基本上以化学计量运行。 此外，描述了使用来自排气氧传感器的反馈自适应地学习泵送气流的方法。

    Engine air amount prediction based on engine position
    5.
    发明授权
    Engine air amount prediction based on engine position 有权
    基于发动机位置的发动机空气量预测

    公开(公告)号：US06796292B2

    公开(公告)日：2004-09-28

    申请号：US10374189

    申请日：2003-02-26

    Applicant: Donald James Lewis ,  John D. Russell

    Inventor： Donald James Lewis ,  John D. Russell

    IPC: F02D4106

    CPC classification number: F02D41/32 ,  F02D41/062 ,  F02D41/18 ,  F02D2200/0402

    Abstract: A system and method to predict engine air amount for an internal combustion engine is described. Included is a method to predict a change in engine air amount based on engine position. This method especially suited to engine starts, where engine air amount is difficult to predict due to low engine speed and limited sensor information. The system and method provides the prediction of engine air amount without extensive models or calibration. Fuel is supplied based on the predicted engine air amount.

    Abstract translation: 描述了一种用于预测内燃机的发动机空气量的系统和方法。 包括一种基于发动机位置来预测发动机空气量变化的方法。 这种方法特别适用于发动机启动，由于发动机转速低和传感器信息有限，发动机空气量难以预测。 该系统和方法提供了无需广泛模型或校准的发动机空气量的预测。 基于预测的发动机空气量供应燃料。

    Engine air amount prediction based on a change in speed
    6.
    发明授权
    Engine air amount prediction based on a change in speed 有权
    基于速度变化的发动机空气量预测

    公开(公告)号：US06761153B1

    公开(公告)日：2004-07-13

    申请号：US10374168

    申请日：2003-02-26

    Applicant: Donald James Lewis ,  John D. Russell

    Inventor： Donald James Lewis ,  John D. Russell

    IPC: F02M5100

    CPC classification number: F02D41/1458 ,  F02D41/045 ,  F02D41/064 ,  F02D41/102 ,  F02D2041/1433 ,  F02D2041/1437 ,  F02D2200/0402

    Abstract: A system and method to predict engine air amount for an internal combustion engine is described. Included is a method to predict a change in engine air amount based on a difference in engine speed. This method is especially suited to engine starts, where engine air amount is difficult to predict due to low engine speed and limited sensor information. The system and method provides the prediction of engine air amount without extensive models or calibration. Fuel is supplied based on the predicted engine air amount.

    Abstract translation: 描述了一种用于预测内燃机的发动机空气量的系统和方法。 包括基于发动机转速不同来预测发动机空气量变化的方法。 这种方法特别适用于发动机启动，由于发动机转速低和传感器信息有限，发动机空气量难以预测。 该系统和方法提供了无需广泛模型或校准的发动机空气量的预测。 基于预测的发动机空气量供应燃料。

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