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1. 发明授权

US06481423B2 Dynamic EGR concentration estimation method for a motor vehicle engine 有权
标题翻译：汽车发动机的动态EGR浓度估计方法
公开(公告)号：US06481423B2
公开(公告)日：2002-11-19
申请号：US09732658
申请日：2000-12-01
申请人： Martin Muller , Peter M. Olin , Bart Hubert Schreurs
发明人： Martin Muller , Peter M. Olin , Bart Hubert Schreurs
IPC分类号： F02M2507
CPC分类号： F02D41/0072 , G01N33/0011 , G01N33/0018 , Y02T10/47
摘要： An improved method of dynamically estimating the concentration of recirculated exhaust gases in air/fuel mixture of an internal combustion engine equipped with an exhaust gas recirculation (EGR) system. The EGR concentration at engine intake ports is separately estimated with static and dynamic models, and the EGR concentration for control purposes is determined by adjusting the result of the dynamic model based on a deviation of the dynamic model from the static model. This method provides the total EGR concentration, but can alternatively provide the inert EGR concentration through the inclusion of an exhaust inert ratio model.
摘要翻译：一种动态地估计配备有废气再循环（EGR）系统的内燃机的空气/燃料混合物中再循环废气浓度的改进方法。采用静态和动态模型分别估算发动机进气口的EGR浓度，并根据动态模型与静态模型的偏差调整动态模型的结果，确定用于控制目的的EGR浓度。该方法提供总EGR浓度，但也可以通过包括排气惰性比模型提供惰性EGR浓度。

2. 发明授权

US07254478B1 Method of estimating airflow in an air injection reaction system 失效
标题翻译：空气注射反应系统中气流估算方法
公开(公告)号：US07254478B1
公开(公告)日：2007-08-07
申请号：US11395987
申请日：2006-03-31
申请人： Andrew D. Herman , Peter M. Olin
发明人： Andrew D. Herman , Peter M. Olin
IPC分类号： G06F19/00 , F01N3/00
CPC分类号： F01N3/22
摘要： A method of estimating the quantity of secondary reaction airflow supplied to the exhaust manifold of an internal combustion engine by an air injection reaction (AIR) system models airflows in an AIR pump, an AIR valve, and a plenum coupling the pump to the valve. The pump flow is modeled based on the pump speed (or pump motor voltage), the pump inlet air temperature and the pressure ratio across the pump, and the valve flow is modeled based on the pressure ratio across the valve and the valve inlet air temperature. The plenum pressure used in the pump and valve pressure ratios is modeled based on the net plenum airflow and the plenum air temperature. The estimated AIR airflow is useful for managing the air/fuel ratio in the engine exhaust system and enhancing the reliability of AIR diagnostics.
摘要翻译：通过空气注射反应（AIR）系统估计供应到内燃机的排气歧管的二次反应气流的量的方法来模拟在空气泵，气阀和将泵连接到阀的气室的气流。泵流量基于泵速度（或泵电机电压），泵入口空气温度和泵两端的压力比建模，阀流量基于阀门和阀入口空气温度之间的压力比建模。在泵和阀压力比下使用的增压室压力基于净气室气流和增压空气温度进行建模。估计的空气气流对于管理发动机排气系统中的空气/燃料比是有用的，并且增强了AIR诊断的可靠性。

3. 发明授权

US5845627A Internal combustion engine pneumatic state estimator 失效
标题翻译：内燃机气动状态估计器
公开(公告)号：US5845627A
公开(公告)日：1998-12-08
申请号：US866202
申请日：1997-05-30
申请人： Peter M. Olin , Peter J. Maloney
发明人： Peter M. Olin , Peter J. Maloney
IPC分类号： F02D41/14 , F02D41/18
CPC分类号： F02D41/1401 , F02D2041/1425 , F02D2041/1433
摘要： Pneumatic state estimation operations for estimating gas flow and pressure at pneumatic nodes and flow branches within a reticulated engine system for engine control and diagnostic operations resolves net flow imbalances at specific pneumatic nodes and attributes such imbalances to inaccuracies in pneumatic state estimation. Inaccuracies are corrected as a function of a prior pneumatic state estimate and of a net flow imbalance at the node or a neighboring node for precision engine control and diagnostic operations.
摘要翻译：用于估计用于发动机控制和诊断操作的网状发动机系统内的气动节点和气流分支处的气体流量和压力的气动状态估计操作解决了特定气动节点处的净流量不平衡，并将这种不平衡归因于气动状态估计中的不准确性。根据先前的气动状态估计和在节点或相邻节点处的净流量不平衡的精确发动机控制和诊断操作来校正不准确性。

4. 发明申请

US20090049897A1 METHOD FOR ON-LINE ADAPTATION OF ENGINE VOLUMETRIC EFFICIENCY USING A MASS AIR FLOW SENSOR 审中-公开
标题翻译：使用大气流量传感器在线调节发动机体积效率的方法
公开(公告)号：US20090049897A1
公开(公告)日：2009-02-26
申请号：US11844781
申请日：2007-08-24
申请人： Peter M. Olin , Sergio Quelhas , Koon Chul Yang , Sergio E. Garcia
发明人： Peter M. Olin , Sergio Quelhas , Koon Chul Yang , Sergio E. Garcia
IPC分类号： G01L3/26 , G01M15/04
CPC分类号： G01M15/042 , F02D41/185 , F02D41/187 , F02D41/2451
摘要： An electronic engine controller is configured to execute a process of adapting a base value of the volumetric efficiency of an engine through the addition of a correction value of the volumetric efficiency. The process includes comparing an estimated mass air flow value calculated using a speed-density equation, with an actual mass air flow value measured by a mass air flow (MAF) sensor. A percentage error of the estimated mass air flow value as compared to the actual mass air flow value is calculated. When the percentage error indicates that the air flow is at steady state, then the process updates the VE correction value, by integrating the percentage error. The new correction value, thus computed, is then stored in a cell of an array corresponding to the current engine operating condition. The process is configured to add the correction value to the corresponding base value to produce an updated value of the VE, valid for that operating condition. The process accommodates changes in the volumetric efficiency of the engine due to part aging and deposit build-up over time, among other things. The updated VE value may then be used for mass air flow estimation and accordingly for fueling control as well.
摘要翻译：电子发动机控制器被配置为执行通过添加容积效率的校正值来适配发动机的容积效率的基值的过程。该方法包括将使用速度密度方程计算出的估计质量空气流量值与通过质量空气流量（MAF）传感器测量的实际质量空气流量值进行比较。计算与实际质量空气流量值相比的估计质量空气流量值的百分比误差。当百分比误差表示气流处于稳定状态时，过程通过积分百分比误差来更新VE校正值。这样计算的新的校正值然后被存储在与当前发动机工作条件相对应的阵列的单元中。该过程被配置为将校正值添加到相应的基本值以产生对于该操作条件有效的VE的更新值。该过程适应了随着时间的推移，部分老化和沉积物堆积造成的发动机容积效率的变化等等。然后，更新的VE值可以用于质量空气流量估计，并且因此也用于加油控制。

5. 发明申请

US20090048729A1 METHOD FOR DIAGNOSING THE OPERATIONAL STATE OF A VARIABLE VALVE ACTUATION (VVA) DEVICE USING A KNOCK SIGNAL 审中-公开
标题翻译：用于使用锁定信号诊断可变阀门执行（VVA）装置的运行状态的方法
公开(公告)号：US20090048729A1
公开(公告)日：2009-02-19
申请号：US11839986
申请日：2007-08-16
申请人： James P. Waters , Jon C. Darrow , Timothy W. Kunz , Peter M. Olin
发明人： James P. Waters , Jon C. Darrow , Timothy W. Kunz , Peter M. Olin
IPC分类号： G01M15/04
CPC分类号： G01M15/042 , G01L23/221
摘要： A method for determining whether a variable valve actuation (VVA) device or subsystem is operating in an improper mode of operation is performed in real-time by an embedded engine or powertrain controller configured to monitor and evaluate an already-available knock sensor output signal. The knock sensor output is captured during a predefined sampling window, defined to include a valve closing event when the VVA device is operating in a proper mode. The captured knock sensor output signal is processed to detect the presence (or absence) of a valve closing event. The absence of a valve closing event when one is expected is indicative of a malfunctioning VVA device.
摘要翻译：用于确定可变气门致动（VVA）装置或子系统是否在不正确的操作模式下操作的方法是通过配置成监测和评估已经可用的爆震传感器输出信号的嵌入式发动机或动力系统控制器实时执行的。敲击传感器输出在预定义的采样窗口中捕获，定义为当VVA设备以适当的模式运行时包括阀关闭事件。捕获的爆震传感器输出信号被处理以检测阀关闭事件的存在（或不存在）。当期望的时候没有关闭阀门的事件表明VVA装置发生故障。

6. 发明授权

US6016460A Internal combustion engine control with model-based barometric pressure estimator 失效
标题翻译：使用基于模型的大气压力估计器进行内燃机控制
公开(公告)号：US6016460A
公开(公告)日：2000-01-18
申请号：US174234
申请日：1998-10-16
申请人： Peter M. Olin , Peter James Maloney
发明人： Peter M. Olin , Peter James Maloney
IPC分类号： F02D41/18 , F02D41/32 , F02D45/00
CPC分类号： F02D41/0072 , F02D41/18 , F02D41/32 , F02D2200/0402 , F02D2200/0408 , F02D2200/704 , Y02T10/47
摘要： An improved engine control utilizes a model-based technique to obtain an accurate estimate of barometric pressure with significantly reduced calibration time and effort. A mathematical model of mass air flow through the engine intake system is used to estimate the pressure ratio across the intake system as a function of mass air flow, the effective intake area, and the intake air pressure and temperature. The barometric pressure is then determined from the estimated ratio, and used in the calculation of various gas flows for control purposes. The mass air flow information may be provided by a mass air flow sensor, or alternatively, may be determined based on engine flow rate estimations. Because the estimation is model-based, no special calibration is needed to ensure accuracy at high altitudes.
摘要翻译：改进的发动机控制利用基于模型的技术来获得大气压力的准确估计，并显着缩短校准时间和精力。使用通过发动机进气系统的质量空气流量的数学模型来估计进气系统中的压力比作为质量空气流量，有效进气面积和进气压力和温度的函数。然后从估计的比率确定大气压力，并用于计算各种气体流量以用于控制目的。质量空气流量信息可以由质量空气流量传感器提供，或者可以基于发动机流量估计来确定。因为估计是基于模型的，所以不需要特殊的校准来确保在高海拔地区的准确性。

7. 发明授权

US06658364B2 Method of estimating gas pressure in an engine exhaust manifold 有权
公开(公告)号：US06658364B2
公开(公告)日：2003-12-02
申请号：US10143967
申请日：2001-12-13
申请人： Peter M. Olin
发明人： Peter M. Olin
IPC分类号： G06F1500
CPC分类号： F02D41/145 , F02D41/0235 , F02D41/1446 , F02D41/187 , F02D2200/0402 , F02D2200/0406 , F02D2200/703
摘要： An improved method of estimating the gas pressure in the exhaust manifold of an internal combustion engine characterizes the engine exhaust system as a restriction, and estimates the exhaust manifold pressure as the gas pressure upstream of the restriction based on calibrated characteristics of the exhaust system and known characteristics of exhaust gas flow through the exhaust system. The estimation is based on a mathematical model that relates the mass flow of gas through the engine exhaust system to the exhaust manifold pressure (i.e., the upstream pressure), the barometric pressure (i.e., the downstream pressure) and the exhaust manifold gas temperature. An estimate of a pressure ratio across the exhaust system is calibrated based on the model parameters, and the exhaust manifold pressure is determined according to the product of the estimated pressure ratio and the barometric pressure.

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