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    Off-line calibration of universal tracking air fuel ratio regulators
    2.
    发明授权
    Off-line calibration of universal tracking air fuel ratio regulators 有权
    通用跟踪空燃比调节器的离线校准

    公开(公告)号：US07925421B2

    公开(公告)日：2011-04-12

    申请号：US12260334

    申请日：2008-10-29

    申请人： Sharon Liu ,  Kenneth P. Dudek ,  Sai Rajagopalan ,  Stephen Yurkovich ,  Yiran Hu ,  Yann G. Guezennec ,  Shawn W. Midlam-Mohler

    发明人： Sharon Liu ,  Kenneth P. Dudek ,  Sai Rajagopalan ,  Stephen Yurkovich ,  Yiran Hu ,  Yann G. Guezennec ,  Shawn W. Midlam-Mohler

    IPC分类号： F02D41/30

    CPC分类号： F02D41/2454 ,  F02D41/1401 ,  F02D41/1454 ,  F02D41/187 ,  F02D41/2432 ,  F02D2041/1422 ,  F02D2041/1437 ,  F02D2200/0406

    摘要： A fuel control system of an engine includes a simulation module and a control module. The simulation module generates a simulated pre-catalyst exhaust gas oxygen (EGO) sensor signal based on a simulated oxygen concentration of an exhaust gas. The simulation module determines a simulated pre-catalyst equivalence ratio (EQR) for the exhaust gas based on the simulated pre-catalyst EGO sensor signal. The control module generates a desired pre-catalyst EGO sensor signal based on a desired oxygen concentration of the exhaust gas. The control module determines a desired pre-catalyst EQR based on the desired pre-catalyst EGO sensor signal. The control module determines a cost function based on the simulated pre-catalyst EQR and the desired pre-catalyst EQR. The fuel control system is calibrated based on the cost function.

    摘要翻译： 发动机的燃料控制系统包括模拟模块和控制模块。 模拟模块基于废气的模拟氧浓度产生模拟的预催化剂废气氧（EGO）传感器信号。 模拟模块基于模拟的催化剂前EGO传感器信号确定废气的模拟预催化剂当量比（EQR）。 控制模块基于所需的废气氧浓度产生所需的预催化剂EGO传感器信号。 控制模块基于所需的预催化剂EGO传感器信号确定所需的预催化剂EQR。 控制模块基于模拟的预催化剂EQR和所需的预催化剂EQR来确定成本函数。 燃油控制系统根据成本函数进行校准。

    OFF-LINE CALIBRATION OF UNIVERSAL TRACKING AIR FUEL RATIO REGULATORS
    3.
    发明申请
    OFF-LINE CALIBRATION OF UNIVERSAL TRACKING AIR FUEL RATIO REGULATORS 有权
    通用追踪航空燃油比例调节器的离线校准

    公开(公告)号：US20090271093A1

    公开(公告)日：2009-10-29

    申请号：US12260334

    申请日：2008-10-29

    申请人： Sharon Liu ,  Kenneth P. Dudek ,  Sai S.V. Rajagopalan ,  Stephen Yurkovich ,  Yiran Hu ,  Yann G. Guezennec ,  Shawn W. Midlam-Mohler

    发明人： Sharon Liu ,  Kenneth P. Dudek ,  Sai S.V. Rajagopalan ,  Stephen Yurkovich ,  Yiran Hu ,  Yann G. Guezennec ,  Shawn W. Midlam-Mohler

    IPC分类号： G06F17/00

    CPC分类号： F02D41/2454 ,  F02D41/1401 ,  F02D41/1454 ,  F02D41/187 ,  F02D41/2432 ,  F02D2041/1422 ,  F02D2041/1437 ,  F02D2200/0406

    摘要： A fuel control system of an engine includes a simulation module and a control module. The simulation module generates a simulated pre-catalyst exhaust gas oxygen (EGO) sensor signal based on a simulated oxygen concentration of an exhaust gas. The simulation module determines a simulated pre-catalyst equivalence ratio (EQR) for the exhaust gas based on the simulated pre-catalyst EGO sensor signal. The control module generates a desired pre-catalyst EGO sensor signal based on a desired oxygen concentration of the exhaust gas. The control module determines a desired pre-catalyst EQR based on the desired pre-catalyst EGO sensor signal. The control module determines a cost function based on the simulated pre-catalyst EQR and the desired pre-catalyst EQR. The fuel control system is calibrated based on the cost function.

    摘要翻译： 发动机的燃料控制系统包括模拟模块和控制模块。 模拟模块基于废气的模拟氧浓度产生模拟的预催化剂废气氧（EGO）传感器信号。 模拟模块基于模拟的催化剂前EGO传感器信号确定废气的模拟预催化剂当量比（EQR）。 控制模块基于所需的废气氧浓度产生所需的预催化剂EGO传感器信号。 控制模块基于所需的预催化剂EGO传感器信号确定所需的预催化剂EQR。 控制模块基于模拟的预催化剂EQR和所需的预催化剂EQR来确定成本函数。 燃油控制系统根据成本函数进行校准。

    Control systems and methods using geometry based exhaust mixing model
    6.
    发明授权
    Control systems and methods using geometry based exhaust mixing model 有权
    使用基于几何的排气混合模型的控制系统和方法

    公开(公告)号：US08224557B2

    公开(公告)日：2012-07-17

    申请号：US12687484

    申请日：2010-01-14

    申请人： Sai S. V. Rajagopalan ,  Jason Meyer ,  Shawn W. Midlam-Mohler ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    发明人： Sai S. V. Rajagopalan ,  Jason Meyer ,  Shawn W. Midlam-Mohler ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    IPC分类号： F02D41/14

    CPC分类号： F01N13/107 ,  F01N9/00 ,  F02D41/1441 ,  F02D41/1474 ,  F02D2041/1437 ,  F02D2200/0402 ,  Y02T10/47

    摘要： A system includes a cylinder equivalence ratio (EQR) module, a location estimation module, a sensor module, and a fuel control module. The cylinder EQR module determines a first EQR corresponding to a first exhaust gas expelled from a first cylinder and determines a second EQR corresponding to a second exhaust gas expelled from a second cylinder. The location estimation module determines when the first and second exhaust gases mix in an exhaust manifold to form a third exhaust gas having a third EQR. The sensor module estimates an EQR of a fourth exhaust gas based on the third EQR. The fourth exhaust gas is located at an oxygen sensor in the exhaust manifold. The fuel control module controls an amount of fuel supplied to an engine based on a difference between the estimated EQR and an EQR corresponding to measurements from the oxygen sensor.

    摘要翻译： 系统包括气缸当量比（EQR）模块，位置估计模块，传感器模块和燃料控制模块。 气缸EQR模块确定对应于从第一气缸排出的第一废气的第一EQR，并且确定对应于从第二气缸排出的第二废气的第二EQR。 位置估计模块确定第一和第二废气何时在排气歧管中混合以形成具有第三EQR的第三废气。 传感器模块基于第三个EQR估计第四废气的EQR。 第四废气位于排气歧管中的氧传感器。 燃料控制模块基于估计的EQR和对应于来自氧传感器的测量值的EQR之间的差来控制供应给发动机的燃料量。

    Compensating for random catalyst behavior
    7.
    发明授权
    Compensating for random catalyst behavior 有权
    补偿随机催化剂行为

    公开(公告)号：US08346458B2

    公开(公告)日：2013-01-01

    申请号：US12714854

    申请日：2010-03-01

    申请人： Shawn W. Midlam-Mohler ,  Sai S. V. Rajagopalan ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    发明人： Shawn W. Midlam-Mohler ,  Sai S. V. Rajagopalan ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    IPC分类号： F02D43/04

    CPC分类号： F02D41/1441 ,  F02D41/1458 ,  F02D41/2432 ,  F02D41/2474 ,  F02D2041/1409 ,  F02D2041/1433 ,  F02D2200/0406 ,  F02D2200/0414

    摘要： A method for calibrating an engine control module includes sampling a first signal from a first oxygen sensor located upstream from a catalyst. The first signal indicates an oxygen content of exhaust gas produced by an engine. The method further includes predicting a response of a second oxygen sensor located downstream from the catalyst using a model of the catalyst and the first signal and sampling a second signal from the second oxygen sensor. The method further includes determining a component of the second signal based on a difference between samples of the second signal and the predicted response. The component is due to gases other than oxygen. Additionally, the method includes calibrating the engine control module based on the component of the second signal. The engine control module controls an amount of fuel injected into the engine.

    摘要翻译： 用于校准发动机控制模块的方法包括从位于催化剂上游的第一氧传感器采样第一信号。 第一信号表示发动机产生的废气的氧含量。 该方法还包括使用催化剂和第一信号的模型来预测位于催化剂下游的第二氧传感器的响应并从第二氧传感器采样第二信号。 该方法还包括基于第二信号的样本和预测响应之间的差来确定第二信号的分量。 该组分是由于除氧以外的气体。 此外，该方法包括基于第二信号的分量来校准发动机控制模块。 发动机控制模块控制喷射到发动机中的燃料量。

    Delay compensation systems and methods
    10.
    发明授权
    Delay compensation systems and methods 有权
    延迟补偿系统和方法

    公开(公告)号：US08113187B2

    公开(公告)日：2012-02-14

    申请号：US12570251

    申请日：2009-09-30

    申请人： Jason Meyer ,  Shawn W. Midlam-Mohler ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    发明人： Jason Meyer ,  Shawn W. Midlam-Mohler ,  Kenneth P. Dudek ,  Stephen Yurkovich ,  Yann G. Guezennec

    IPC分类号： F02D41/00 ,  F02D41/02

    CPC分类号： F02D41/1401 ,  F02D41/0295 ,  F02D41/1441 ,  F02D41/187 ,  F02D2041/1418 ,  F02D2041/1419 ,  F02D2041/1431

    摘要： A steady-state (SS) delay module determines a SS delay period for SS operating conditions based on an air per cylinder. A dynamic compensation module determines a predicted delay period based on first and second dynamic compensation variables for dynamic operating conditions, the SS delay period, a previous predicted delay period. The first dynamic compensation variable corresponds to a period between a first time when fuel is provided for a cylinder of an engine and a second time when exhaust gas resulting from combustion of the fuel and air is expelled from the cylinder. The SS and predicted delay periods correspond to a period between the first time and a third time when the exhaust gas reaches an exhaust gas oxygen sensor located upstream of a catalyst. A final equivalence ratio module adjusts fuel provided to the cylinder after the third time based on the predicted delay period.

    摘要翻译： 稳态（SS）延迟模块基于每个气缸的空气确定SS操作条件的SS延迟周期。 动态补偿模块基于用于动态操作条件的第一和第二动态补偿变量，SS延迟周期，先前预测的延迟周期来确定预测延迟周期。 第一动态补偿变量对应于在为发动机气缸提供燃料的第一时间和当燃料和空气的燃烧产生的废气从气缸排出时的第二时间段。 SS和预测的延迟周期对应于当排气到达位于催化剂上游的排气氧传感器的第一和第三时间之间的时间段。 最终当量比模块基于预测的延迟周期来调整在第三次之后提供给气缸的燃料。