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公开(公告)号：US06523531B1
公开(公告)日：2003-02-25
申请号：US09997797
申请日：2001-12-03
IPC分类号： F02D4114
CPC分类号： F02D41/1454 , F02D41/0042 , F02D41/0045 , F02D2041/141 , F02D2041/1433
摘要： A method for air/fuel operation of an engine. The engine is supplied fuel from both a fuel purging system to purge fuel in a fuel supply and feed such purged fuel to an intake manifold of the engine and a fuel injection system to inject fuel from such fuel supply into a cylinder of such engine. The method includes producing a first air/fuel ratio control signal in accordance with measured exhaust gas oxygen emission from the engine; producing a second air/fuel ratio control signal in accordance with fuel transport delay through the fuel purging system; combining the first and second air/fuel ratio control signals into a composite control signal; and feeding such composite control signal to the fuel injection system. Producing the first air/fuel ratio control signal comprises determining fuel flow rate through the purge system. The purge system includes a valve, such valve passing the fuel in the purging system to the intake manifold at a rate relate to a duty cycle of a control signal fed to such valve and wherein the flow rate is determined in response to the duty cycle the control signal fed to the valve. The purge system includes a hydrocarbon sensor responsive to fuel in the purging system and wherein the first air/fuel ratio control signal is produced in accordance with an output of such sensor. The method includes determining a species of hydrocarbon in the fuel being purged and adjusting the first air/fuel ratio control signal in accordance with the determined species. The species determination comprises determining from the exhaust gas oxygen a deviation of the engine emissions from stoichiometry. The method includes providing a model of the engine. The model represents a relationship between: (1) a signal model LAMBSE, representative of estimated air/fuel ratio of the engine relative to a stoichiometric air/fuel ratio for the engine; and, (2) fuel injected into the cylinder of the engine. Exhaust gas oxygen emission from the engine is measured during operation of such engine. Actual LAMBSE produced by such engine during operation of such engine is produced as a function of such measured oxygen. The actual LAMBSE is compared with the model LAMBSE provided by the model in response to fuel injected into the engine to produce a model error signal. The fuel injected into the engine is adjusted in accordance with the error signal.
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公开(公告)号：US06666200B2
公开(公告)日：2003-12-23
申请号：US10010211
申请日：2001-12-10
IPC分类号： F02D4114
CPC分类号： F02D41/1454 , F02D41/0042 , F02D41/0045 , F02D41/1401 , F02D41/1458 , F02D2041/141 , F02D2041/1433
摘要： A method for air/fuel operation of an engine. The method includes providing a model of the engine. The model represents a relationship between: (1) a signal model LAMBSE, representative of estimated air/fuel ratio of the engine relative to a stoichiometric air/fuel ratio for the engine; and, (2) fuel injected into the cylinder of the engine. Exhaust gas oxygen emission from the engine is measured during operation of such engine. Actual LAMBSE produced by such engine during operation of such engine is produced as a function of such measured oxygen. The actual LAMBSE is compared with the model LAMBSE provided by the model in response to fuel injected into the engine to produce a model error signal. The fuel injected into the engine is adjusted in accordance with the error signal.
摘要翻译： 一种用于发动机的空燃操作的方法。 该方法包括提供发动机的模型。 该模型表示以下关系：（1）代表发动机相对于发动机的化学计量空气/燃料比的估计空燃比的信号模型LAMBSE; 和（2）喷射到发动机气缸中的燃料。 在这种发动机的运行期间测量来自发动机的废气氧气排放。 在这种发动机的运行期间由这种发动机产生的实际LAMBSE是作为测量的氧气的函数产生的。 将实际的LAMBSE与模型提供的模型LAMBSE进行比较，以响应注入发动机的燃料产生模型误差信号。 根据误差信号调整注入发动机的燃料。
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公开(公告)号：US5921221A
公开(公告)日：1999-07-13
申请号：US75291
申请日：1998-05-08
申请人： Leighton Ira Davis, Jr. , Charles Stuart Daw , Lee Albert Feldkamp , John William Hoard , Fumin Yuan , Francis Thomas Connolly
发明人： Leighton Ira Davis, Jr. , Charles Stuart Daw , Lee Albert Feldkamp , John William Hoard , Fumin Yuan , Francis Thomas Connolly
CPC分类号： F02D41/1498 , F02D2200/1012 , F02D2200/1015
摘要： Cyclic variation in combustion of a lean burning engine is reduced by detecting an engine combustion event output such as torsional acceleration in a cylinder (i) at a combustion event (k), using the detected acceleration to predict a target acceleration for the cylinder at the next combustion event (k+1), modifying the target output by a correction term that is inversely proportional to the average phase of the combustion event output of cylinder (i) and calculating a control output such as fuel pulse width or spark timing necessary to achieve the target acceleration for cylinder (i) at combustion event (k+1) based on anti-correlation with the detected acceleration and spill-over effects from fueling.
摘要翻译： 通过使用检测到的加速度来检测在燃烧事件（k）中的气缸（i）中的扭转加速度的发动机燃烧事件输出来减少燃烧发动机的燃烧中的循环变化，以预测气缸 下一个燃烧事件（k + 1），通过与气缸（i）的燃烧事件输出的平均相位成反比的校正项来修正目标输出，并计算诸如燃料脉冲宽度或火花时间之类的控制输出， 基于与检测到的加速和加油溢出效应的反相关，实现燃烧事件（k + 1）下气缸（i）的目标加速度。
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公开(公告)号：US5745653A
公开(公告)日：1998-04-28
申请号：US596535
申请日：1996-02-05
CPC分类号： F02D41/1405 , F02D41/2406 , F02D2041/1423 , F02D2041/1429 , F02D2041/1433
摘要： A electronic engine control (EEC) module executes a generic neural network processing program to perform one or more neural network control funtions. Each neural network funtion is defined by a unitary data structure which defines the network architecture, including the number of node layers, the number of nodes per layer, and the interconnections between nodes. In addition, the data structure holds weight values which determine the manner in which network signals are combined. The network definition data structures are created by a network training system which utilizes an external training processor which employs gradient methods to derive network weight values in accordance with a cost function which quantitatively defines system objectives and an identification network which is pretrained to provide gradient signals representative the behavior of the physical plant. The training processor executes training cycles asynchronously with the operation of the EEC module in a representative test vehicle.
摘要翻译： 电子引擎控制（EEC）模块执行通用神经网络处理程序来执行一个或多个神经网络控制功能。 每个神经网络功能由定义网络架构的单一数据结构定义，包括节点层的数量，每层节点的数量以及节点之间的互连。 此外，数据结构保存了确定网络信号组合方式的权重值。 网络定义数据结构由网络训练系统创建，网络训练系统利用外部训练处理器，该外部训练处理器采用梯度方法根据量化定义系统目标的成本函数和预培训的识别网络来提供梯度信号， 物理植物的行为。 训练处理器在代表性测试车辆中与EEC模块的操作异步执行训练周期。
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公开(公告)号：US5781700A
公开(公告)日：1998-07-14
申请号：US597080
申请日：1996-02-05
CPC分类号： G05B13/027 , F02D41/1405 , F02D41/1473 , F02D41/2432 , F02D41/2454 , F02D2041/1423 , F02D2041/1429 , F02D2041/1433 , F02D41/2477 , Y10S706/905
摘要： An electronic engine control (EEC) module executes both open loop and closed loop neural network processes to control the air/fuel mixture ratio of a vehicle engine to hold the fuel mixture at stoichiometry. The open loop neural network provides transient air/fuel control to provide a base stoichiometric air/fuel mixture ratio signal in response to throttle position under current engine speed and load conditions. The base air/fuel mixture ratio signal from the open loop network is additively combined with a closed loop trimming signal which varies the air/fuel mixture ratio in response to variations in the sensed exhaust gas oxygen level. Each neural network function is defined by a unitary data structure which defines the network architecture, including the number of node layers, the number of nodes per layer, and the interconnections between nodes. In addition, the data structure holds weight values which determine the manner in which network signals are combined. The network definition data structures are created by a network training system which utilizes an external training processor which employs gradient methods to derive network weight values in accordance with a cost function which quantitatively defines system objectives and an identification network which is pretrained to provide gradient signals representative of the behavior of the physical plant. The training processor executes training cycles asynchronously with the operation of the EEC module in a representative test vehicle.
摘要翻译： 电子发动机控制（EEC）模块执行开环和闭环神经网络过程，以控制车辆发动机的空气/燃料混合比，以将燃料混合物保持在化学计量比。 开环神经网络提供瞬时空气/燃料控制，以在当前发动机转速和负载条件下响应于节气门位置提供基本化学计量的空气/燃料混合比信号。 来自开环网络的基本空气/燃料混合比信号与闭环修整信号相加地组合，所述闭环修整信号响应于所检测的废气氧气水平的变化而改变空气/燃料混合比。 每个神经网络功能由定义网络架构的单一数据结构定义，包括节点层的数量，每层节点的数量以及节点之间的互连。 此外，数据结构保存了确定网络信号组合方式的权重值。 网络定义数据结构由网络训练系统创建，该网络训练系统利用外部训练处理器，该外部训练处理器采用梯度方法根据量化定义系统目标的成本函数和预训练的识别网络来提供梯度信号， 的物理植物的行为。 训练处理器在代表性测试车辆中与EEC模块的操作异步执行训练周期。
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公开(公告)号：US20100031738A1
公开(公告)日：2010-02-11
申请号：US12186723
申请日：2008-08-06
IPC分类号： G01M15/04
CPC分类号： G01M15/042 , F02B37/00 , F02D13/06 , F02D19/0689 , F02D19/084 , F02D41/0087 , F02D41/221 , F02D2041/0012 , Y02T10/18 , Y02T10/36 , Y02T10/40
摘要： Various methods are described for monitoring cylinder valve deactivation in an engine, the engine including at least a cylinder valve actuator for deactivating at least a cylinder of the engine. One example method comprises indicating degradation of the valve actuator based on crankshaft acceleration.
摘要翻译： 描述了用于监测发动机中的气缸阀停用的各种方法，该发动机至少包括用于停用至少一个发动机气缸的气缸阀致动器。 一个示例性方法包括基于曲轴加速度指示阀致动器的劣化。
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公开(公告)号：US07900509B2
公开(公告)日：2011-03-08
申请号：US12186723
申请日：2008-08-06
IPC分类号： G01M15/04
CPC分类号： G01M15/042 , F02B37/00 , F02D13/06 , F02D19/0689 , F02D19/084 , F02D41/0087 , F02D41/221 , F02D2041/0012 , Y02T10/18 , Y02T10/36 , Y02T10/40
摘要： Various methods are described for monitoring cylinder valve deactivation in an engine, the engine including at least a cylinder valve actuator for deactivating at least a cylinder of the engine. One example method comprises indicating degradation of the valve actuator based on crankshaft acceleration.
摘要翻译： 描述了用于监测发动机中的气缸阀停用的各种方法，该发动机至少包括用于停用至少一个发动机气缸的气缸阀致动器。 一个示例性方法包括基于曲轴加速度指示阀致动器的劣化。
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公开(公告)号：US06292738B1
公开(公告)日：2001-09-18
申请号：US09488221
申请日：2000-01-19
申请人： Timothy Mark Feldkamp , Danll Valentinovich Prokhorov , Kenneth Andrew Marko , Lee Albert Feldkamp
发明人： Timothy Mark Feldkamp , Danll Valentinovich Prokhorov , Kenneth Andrew Marko , Lee Albert Feldkamp
IPC分类号： G01M1500
CPC分类号： G01M15/11
摘要： An engine misfire detection system (10) for detecting engine misfire. System (10) includes a conventional controller (12) having a memory unit (14) and a plurality of sensors (16). Controller (12) includes a plurality of neural networks, which are trained by system (10), and which determine whether a firing event is a misfire based upon events occurring before the firing event and events occurring after the firing event. The neural networks are adaptively trained to compensate for the effects of engine variability and aging.
摘要翻译： 一种用于检测发动机失火的发动机失火检测系统（10）。 系统（10）包括具有存储器单元（14）和多个传感器（16）的常规控制器（12）。 控制器（12）包括由系统（10）训练的多个神经网络，并且其基于在点火事件之前发生的事件和在点火事件之后发生的事件来确定点火事件是否是失火。 神经网络被自适应地训练以补偿发动机变化和老化的影响。
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公开(公告)号：US5751908A
公开(公告)日：1998-05-12
申请号：US599447
申请日：1996-01-19
CPC分类号： F16H61/0213 , G05B13/0275 , G06N7/04 , B60W2050/0057 , F16H2061/0081 , Y10S706/90
摘要： A microcontroller-based fuzzy logic processing module for generating control signal values in response to variable input signal values in accordance with constraints imposed by propositions or "rules" stored in memory in a standardized format. Each rule consists of one or more input conditions and an output directive. The input conditions and the output directive for a given rule are "fuzzified" by determining the degree of membership of each in fuzzy sets defined by membership functions. Fuzzy logic processing is accomplished by determining the extent to which the input conditions are satisfied by the current values of the input signals in order to develop a rule strength value, and then performing a "center-of-gravity" determination based on the rule strength values assigned to the output membership functions. The center-of-gravity determination performed by representing each output membership function by a discrete value whose magnitude is adjusted to reflect the non-linear relationship between a rule's strength and its influence on the command output value. Using the discrete values weighted in accordance with their pre-calculated area centers, with an adjustment for overlap between adjacent output functions, the center-of-gravity is accurately approximated without requiring piece-wise integration of the output centroid.
摘要翻译： 一种基于微控制器的模糊逻辑处理模块，用于根据以标准格式存储在存储器中的命题或“规则”所施加的约束，响应于可变输入信号值产生控制信号值。 每个规则由一个或多个输入条件和输出指令组成。 给定规则的输入条件和输出指令通过确定由隶属函数定义的模糊集中的每个隶属度的隶属程度来“模糊化”。 模糊逻辑处理是通过确定输入条件满足输入条件的程度来实现的，以便产生规则强度值，然后基于规则强度进行“重心”确定 分配给输出成员函数的值。 通过用调整幅度的离散值表示每个输出隶属度函数来执行重心确定，以反映规则强度与其对命令输出值的影响之间的非线性关系。 使用根据其预先计算的区域中心加权的离散值，对相邻输出函数之间的重叠进行调整，可以精确地逼近重心，而不需要对输出质心进行分段积分。
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公开(公告)号：US06701193B1
公开(公告)日：2004-03-02
申请号：US09641738
申请日：2000-08-18
申请人： Dimitar P. Filev , Danil Valentinovich Prokhorov , Lee Albert Feldkamp , Ma Lixing , Tomas Larsson
发明人： Dimitar P. Filev , Danil Valentinovich Prokhorov , Lee Albert Feldkamp , Ma Lixing , Tomas Larsson
IPC分类号： G05B1302
CPC分类号： G05B13/042 , B05B12/12
摘要： A method is provided of adaptively controlling a paint system for painting vehicle bodies. The method includes the steps of obtaining an estimated Jacobian that identifies characteristics of the paint system and using the estimated Jacobian to determine initial conditions to be implemented for the next vehicle body to be painted in the paint system. The method also includes the steps of storing a database of appropriate initial conditions that resulted in satisfactory transient response in a rule-base and using the rule-base at start-up of the paint system or if the paint system fails to be satisfactorily controlled.
摘要翻译： 提供一种自动控制用于涂漆车体的涂料系统的方法。 该方法包括以下步骤：获得识别油漆系统特征的估计雅可比，并使用估计的雅可比确定要在油漆系统中涂覆的下一个车身的初始条件。 该方法还包括以下步骤：在规则库中存储导致令人满意的瞬态响应的适当初始条件的数据库，以及在绘制系统启动时使用规则库，或者如果涂料系统不能被令人满意地控制。
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