公开(公告)号：US08265858B2

公开(公告)日：2012-09-11

申请号：US12570280

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： F02D41/1441 ,  F02D41/18 ,  F02D41/2461 ,  F02D2041/1431

摘要： A calibration method comprises: determining a steady-state (SS) delay period from a first mapping of SS delay period indexed by air per cylinder (APC); determining a predicted delay period based on first and second dynamic compensation variables; outputting a theoretical delay period based on a calibration APC; determining the theoretical delay period from a second mapping of theoretical delay period indexed by APC; generating the calibration APC; populating the first mapping based on the theoretical delay and the calibration APC; determining the first and second dynamic compensation variables based on comparisons of the theoretical delay and the SS delay period; and selectively adjusting an amount of fuel provided to the cylinder based on the predicted delay period.

摘要翻译： 一种校准方法包括：从由每个气缸（APC）引导的SS延迟周期的第一映射确定稳态（SS）延迟周期; 基于第一和第二动态补偿变量确定预测延迟周期; 基于校准APC输出理论延迟周期; 由APC指定的理论延迟周期的第二次映射确定理论延迟周期; 产生校准APC; 基于理论延迟和校准APC填充第一映射; 基于理论延迟与SS延迟周期的比较，确定第一和第二动态补偿变量; 并且基于预测的延迟周期选择性地调节提供给气缸的燃料量。

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。

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。

公开(公告)号：US08571785B2

公开(公告)日：2013-10-29

申请号：US12262276

申请日：2008-10-31

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

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

IPC分类号： B60T7/12 ,  G05D1/00 ,  G06F7/00 ,  G06F17/00 ,  F01N3/00 ,  F02D41/00

CPC分类号： F02D41/1454 ,  F02D41/2454 ,  F02D41/2474

摘要： A fuel control system of an engine system comprises a pre-catalyst exhaust gas oxygen (EGO) sensor, a setpoint generator module, a sensor offset module, and a control module. The pre-catalyst EGO sensor generates a pre-catalyst EGO signal based on an air-fuel ratio of an exhaust gas. The setpoint generator module generates a desired pre-catalyst equivalence ratio (EQR) signal based on a desired EQR of the exhaust gas. The sensor offset module determines an offset value of the pre-catalyst EGO sensor. The control module generates an expected pre-catalyst EGO signal based on the desired pre-catalyst EQR signal and the offset value.

摘要翻译： 发动机系统的燃料控制系统包括预催化剂废气氧（EGO）传感器，设定点发生器模块，传感器偏移模块和控制模块。 预催化剂EGO传感器基于排气的空燃比产生催化剂前EGO信号。 设定点发生器模块基于废气的期望的EQR产生期望的预催化剂当量比（EQR）信号。 传感器偏移模块确定催化剂前EGO传感器的偏移值。 控制模块基于期望的预催化剂EQR信号和偏移值产生预期的催化剂前EGO信号。

公开(公告)号：US20110073085A1

公开(公告)日：2011-03-31

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： F02D41/00 ,  G01M15/10

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。

公开(公告)号：US20090048766A1

公开(公告)日：2009-02-19

申请号：US12188607

申请日：2008-08-08

申请人： KENNETH P. DUDEK ,  SAI S.V. RAJAGOPALAN ,  STEPHEN YURKOVICH ,  YANN G. GUEZENNEC ,  Shawn W. Midlam-Mohler ,  LOUIS A. AVALLONE ,  IGOR ANILOVICH

发明人： KENNETH P. DUDEK ,  SAI S.V. RAJAGOPALAN ,  STEPHEN YURKOVICH ,  YANN G. GUEZENNEC ,  Shawn W. Midlam-Mohler ,  LOUIS A. AVALLONE ,  IGOR ANILOVICH

IPC分类号： F02D41/00

CPC分类号： F02D41/1441 ,  F02D41/0295 ,  F02D2200/0814

摘要： A fuel control system of an engine system comprises a pre-catalyst exhaust gas oxygen (EGO) sensor and a control module. The pre-catalyst EGO sensor determines a pre-catalyst EGO signal based on an oxygen concentration of an exhaust gas. The control module determines at least one fuel command and determines at least one expected oxygen concentration of the exhaust gas. The control module determines a final fuel command for the engine system based on the pre-catalyst EGO signal, the fuel command, and the expected oxygen concentration.

摘要翻译： 发动机系统的燃料控制系统包括预催化剂废气氧（EGO）传感器和控制模块。 预催化剂EGO传感器基于废气的氧浓度确定催化剂前EGO信号。 控制模块确定至少一个燃料命令并确定废气的至少一个预期的氧气浓度。 控制模块基于催化剂前的EGO信号，燃料命令和预期的氧气浓度来确定发动机系统的最终燃料指令。

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。

公开(公告)号：US08186336B2

公开(公告)日：2012-05-29

申请号：US12624779

申请日：2009-11-24

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

CPC分类号： F02D41/1482 ,  F02D41/1441 ,  F02D41/1483 ,  F02D2041/1422

摘要： An engine control system includes a proportional correction module and a variable proportional gain determination module. The proportional correction module generates a proportional correction for a fuel command to an engine based on a variable proportional gain and a difference between expected and measured amounts of oxygen in exhaust gas produced by the engine. The variable proportional gain determination module determines the variable proportional gain based on a nominal gain and an amount of time since a polarity of the difference has changed, wherein the nominal gain is based on engine operating parameters.

摘要翻译： 发动机控制系统包括比例校正模块和可变比例增益确定模块。 比例校正模块基于可变比例增益和由发动机产生的废气中预期和测量的氧量之差产生对发动机的燃料命令的比例校正。 可变比例增益确定模块基于标称增益和时间量确定可变比例增益，因为差异的极性已经改变，其中标称增益基于发动机运行参数。

公开(公告)号：US07941260B2

公开(公告)日：2011-05-10

申请号：US11744495

申请日：2007-05-04

申请人： Byungho Lee ,  Yann G. Guezennec

发明人： Byungho Lee ,  Yann G. Guezennec

IPC分类号： G06F19/00

CPC分类号： G01M15/05

摘要： A method of mapping and modeling an engine during an engine development process includes testing the engine over a plurality of actual engine operating conditions and gathering actual engine data corresponding to the actual engine operating conditions. A plurality of parameter functions are determined based on the actual engine data, each of the plurality of parameter functions correspond to an engine operating parameter. A plurality of combustion parameters are generated for a plurality of engine operating conditions that include the plurality of actual engine operating conditions and a plurality of virtual engine operating conditions. An engine simulation model is calibrated based on the plurality of combustion parameters and a plurality of engine maps are generated using the simulation model.

摘要翻译： 在发动机开发过程中对发动机进行映射和建模的方法包括在多个实际的发动机操作条件下测试发动机并收集对应于实际的发动机操作条件的实际发动机数据。 基于实际的发动机数据确定多个参数功能，所述多个参数功能中的每一个对应于发动机操作参数。 对于包括多个实际发动机操作条件和多个虚拟发动机操作条件的多个发动机操作条件，生成多个燃烧参数。 基于多个燃烧参数校准发动机模拟模型，并且使用仿真模型生成多个引擎图。

公开(公告)号：US20110073089A1

公开(公告)日：2011-03-31

申请号：US12725913

申请日：2010-03-17

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 ,  F01N3/00

CPC分类号： F02D41/1454 ,  F02D41/1402 ,  F02D41/1441 ,  F02D41/2454 ,  F02D2041/1409 ,  F02D2041/1432

摘要： An engine control system includes a saturation determination module, an adjustment factor generation module, and a fuel control module. The saturation determination module determines when a first exhaust gas oxygen (EGO) sensor is saturated, wherein the first EGO sensor is located upstream from a catalyst. The adjustment factor generation module generates an adjustment factor for an integral gain of a fuel control module when the first EGO sensor is saturated. The fuel control module adjusts a fuel command for an engine based on differences between expected and measured amounts of oxygen in exhaust gas produced by the engine, a proportional gain, the integral gain, and the integral gain adjustment factor.

摘要翻译： 发动机控制系统包括饱和度确定模块，调节因子产生模块和燃料控制模块。 饱和度确定模块确定第一废气氧（EGO）传感器何时饱和，其中第一EGO传感器位于催化剂的上游。 当第一EGO传感器饱和时，调节因子产生模块产生用于燃料控制模块的积分增益的调节因子。 燃料控制模块基于由发动机产生的排气中的氧气的预期和测量量之间的差异，比例增益，积分增益和积分增益调节因子来调节发动机的燃料指令。