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1.发明授权System and methods for determining attributes for arithmetic operations with fixed-point numbers 有权用于确定具有定点数的算术运算属性的系统和方法公开(公告)号：US08495114B1
公开(公告)日：2013-07-23
申请号：US11135902
申请日：2005-05-23
IPC分类号： G06F7/00
CPC分类号： G06F7/48 , G06F2207/382
摘要： In a computational device, a method is provided for determining attributes for results of arithmetic operations with fixed-point numbers, in an environment for fixed-point algorithm development. An indication is received of a plurality of possible word lengths to be used for storing a plurality of digits representing a result of arithmetic operation with fixed-point numbers. An indication is received of how a placement of a radix point is to be determined in the plurality of digits representing the results of the arithmetic operation with fixed-point numbers. When calculating a selected fixed-point arithmetic operation, one of the word lengths in the plurality of possible word lengths is employed for storing the plurality of digits representing a result of the selected fixed-point arithmetic operation. A placement of a radix point in the plurality of digits representing the result of the selected fixed-point arithmetic operation is based on the received indication of how the radix point is to be determined.
摘要翻译： 在计算设备中，提供了一种用于在用于定点算法开发的环境中用于确定具有定点数的算术运算结果的属性的方法。 接收到用于存储表示具有定点数的算术运算结果的多个数字的多个可能字长的指示。 接收指示如何在表示具有定点数的算术运算结果的多个数字中确定小数点的位置。 当计算所选择的定点算术运算时，采用多个可能字长中的一个字长来存储表示所选定点运算结果的多个数字。 基于所选择的定点算术运算的结果的多个数字中的小数点的放置是基于接收到的小数点如何被确定的指示。
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公开(公告)号：US08402006B1
公开(公告)日：2013-03-19
申请号：US12218112
申请日：2008-07-11
申请人： Andrew C. Bartlett
发明人： Andrew C. Bartlett
CPC分类号： G06F8/74
摘要： In an exemplary embodiment, a computer-implemented method for obtaining a persistent design portion of an executable model is provided. The model includes on or more design details, a design detail specifying one or more aspects or elements of the model. The method also includes obtaining a design description of the model and a user selection specifying a design detail to be included in the design portion. The method further includes generating a selection specification from the user selection, obtaining the design portion by processing the design description according to the selection specification, and making the design portion persistent.
摘要翻译： 在示例性实施例中，提供了一种用于获得可执行模型的持久设计部分的计算机实现的方法。 该模型包括或多个设计细节，指定模型的一个或多个方面或元素的设计细节。 该方法还包括获得模型的设计描述和指定要包括在设计部分中的设计细节的用户选择。 该方法还包括从用户选择产生选择规范，通过根据选择规范处理设计描述并使设计部分持续而获得设计部分。
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3.发明授权Properties, instrumentation and automatic scaling for signals in a modeling environment 有权建模环境中的信号的属性，仪器和自动缩放公开(公告)号：US08805651B1
公开(公告)日：2014-08-12
申请号：US11405027
申请日：2006-04-14
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , G06F8/10 , G06F2217/74
摘要： A method and system are provided for deriving a property value of a data type in a graphical modeling environment. A graphical model in the graphical modeling environment includes at least one signal having a data type having a precision property, a minimum data value property, or a maximum data value property. These properties may be defined by a user of the graphical modeling environment. The graphical modeling environment may also include instrumentation and diagnostics for signals. Heuristics and algorithms may be provided for auto scaling and selection of data types for signals.
摘要翻译： 提供了一种用于在图形建模环境中导出数据类型的属性值的方法和系统。 图形建模环境中的图形模型包括具有数据类型的至少一个信号具有精度属性，最小数据值属性或最大数据值属性。 这些属性可以由图形建模环境的用户定义。 图形建模环境还可以包括用于信号的仪器和诊断。 可以提供启发式和算法用于自动缩放和选择信号的数据类型。
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公开(公告)号：US20120005650A1
公开(公告)日：2012-01-05
申请号：US13220080
申请日：2011-08-29
申请人： JAMES E. CARRICK , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
发明人： JAMES E. CARRICK , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
IPC分类号： G06F9/44
摘要： A computer-implemented method for generating code based on a graphical model may include: translating the graphical model into a graphical model code, the graphical model code including a first graphical model code function; performing a lookup of the first graphical model code function in a hardware specific library, the hardware specific library comprising a plurality of relationships between graphical model code functions and hardware specific functions, where the first graphical model code function is one of the graphical model code functions; obtaining a matched hardware specific function based on the lookup, wherein the matched hardware specific function is one of the hardware specific functions from the hardware specific library; and modifying the graphical model code based on the matched hardware specific function.
摘要翻译： 用于基于图形模型生成代码的计算机实现的方法可以包括：将所述图形模型转换成图形模型代码，所述图形模型代码包括第一图形模型代码功能; 在硬件特定库中执行对第一图形模型代码功能的查找，硬件特定库包括图形模型代码功能和硬件特定功能之间的多个关系，其中第一图形模型代码功能是图形模型代码功能之一 ; 基于查找获得匹配的硬件特定功能，其中匹配的硬件特定功能是来自硬件特定库的硬件特定功能之一; 并基于匹配的硬件特定功能修改图形模型代码。
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公开(公告)号：US08701081B2
公开(公告)日：2014-04-15
申请号：US13220080
申请日：2011-08-29
申请人： James E. Carrick , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
发明人： James E. Carrick , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
IPC分类号： G06F9/44
摘要： A computer-implemented method for generating code based on a graphical model may include: translating the graphical model into a graphical model code, the graphical model code including a first graphical model code function; performing a lookup of the first graphical model code function in a hardware specific library, the hardware specific library comprising a plurality of relationships between graphical model code functions and hardware specific functions, where the first graphical model code function is one of the graphical model code functions; obtaining a matched hardware specific function based on the lookup, wherein the matched hardware specific function is one of the hardware specific functions from the hardware specific library; and modifying the graphical model code based on the matched hardware specific function.
摘要翻译： 用于基于图形模型生成代码的计算机实现的方法可以包括：将所述图形模型转换成图形模型代码，所述图形模型代码包括第一图形模型代码功能; 在硬件特定库中执行对第一图形模型代码功能的查找，硬件特定库包括图形模型代码功能和硬件特定功能之间的多个关系，其中第一图形模型代码功能是图形模型代码功能之一 ; 基于查找获得匹配的硬件特定功能，其中匹配的硬件特定功能是来自硬件特定库的硬件特定功能之一; 并基于匹配的硬件特定功能修改图形模型代码。
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6.发明授权公开(公告)号：US07350189B1
公开(公告)日：2008-03-25
申请号：US10719904
申请日：2003-11-21
申请人： Andrew C. Bartlett
发明人： Andrew C. Bartlett
CPC分类号： G06F17/5045 , G06F17/5031 , G06F2217/84
摘要： Methods and systems for automatically locking down the attributes of signals in modeling and execution systems are disclosed. Signal attributes automatic latch components are placed on the path of the signals. The signal attributes automatic latch components automatically collect all of the information on the attributes of the signals and lock down the attributes of the signals. Alternatively, automatic signal attributes latch functions may be implemented in components, such as input and output port components. The components perform the automatic signal attributes latch functions that enable the components to automatically collect all of the information on the attributes of the signals and lock down the attributes of the signals. If the attributes of the signals are locked down, even if the design of a target system is changed, the locked attributes of the signals do not change.
摘要翻译： 公开了用于在建模和执行系统中自动锁定信号属性的方法和系统。 信号属性自动锁定组件放置在信号的路径上。 信号属性自动锁定组件自动收集关于信号属性的所有信息，并锁定信号的属性。 或者，自动信号属性锁存功能可以在诸如输入和输出端口组件的组件中实现。 组件执行自动信号属性锁存功能，使组件能够自动收集关于信号属性的所有信息，并锁定信号的属性。 如果信号的属性被锁定，即使目标系统的设计改变，信号的锁定属性也不会改变。
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公开(公告)号：US6006153A
公开(公告)日：1999-12-21
申请号：US177319
申请日：1998-10-22
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A catalyst monitoring system is provided for monitoring catalyst efficiency in a catalytic converter of a motor vehicle. The catalyst monitoring system includes a catalyst monitor receiving electrical signals indicative of oxygen in the exhaust gas from a first oxygen sensor positioned between the vehicle's engine and the catalytic converter and a second oxygen sensor positioned downstream from the catalytic converter. Each of these input signals are filtered in the catalyst monitor such that a particular range of frequencies that encapsulate information regarding catalyst efficiency are passed. The filtered signals are then used to establish an amplitude ratio between the downstream oxygen signal and the upstream oxygen signal, such that the algorithm output linearly correlates to catalyst efficiency of the catalytic converter. Digital signal filtering is preferably implemented using a finite impulse response bandpass filter, a full-wave rectifier, a low pass filter, a sampler and a signal normalizer. A means for detecting a stabilized output signal may optionally be used in conjunction with the catalyst monitor.
摘要翻译： 提供了用于监测机动车辆的催化转化器中的催化剂效率的催化剂监测系统。 催化剂监测系统包括催化剂监测器，其接收指示位于车辆发动机和催化转化器之间的第一氧传感器的排气中的氧的电信号，以及位于催化转化器下游的第二氧传感器。 这些输入信号中的每一个在催化剂监视器中被过滤，使得封装关于催化剂效率的信息的特定频率范围被通过。 然后将滤波的信号用于建立下游氧信号和上游氧信号之间的振幅比，使得算法输出与催化转化器的催化剂效率线性相关。 数字信号滤波优选地使用有限脉冲响应带通滤波器，全波整流器，低通滤波器，采样器和信号归一化器来实现。 用于检测稳定的输出信号的装置可以可选地与催化剂监测器结合使用。
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公开(公告)号：US08015543B1
公开(公告)日：2011-09-06
申请号：US11651623
申请日：2007-01-10
申请人： James E. Carrick , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
发明人： James E. Carrick , Peter Szpak , Robert O. Aberg , Andrew C. Bartlett , Xiaocang Lin , Hongbo Yang
IPC分类号： G06F9/44
摘要： A computer-implemented method for generating code based on a graphical model may include: translating the graphical model into a graphical model code, the graphical model code including a first graphical model code function; performing a lookup of the first graphical model code function in a hardware specific library, the hardware specific library comprising a plurality of relationships between graphical model code functions and hardware specific functions, where the first graphical model code function is one of the graphical model code functions; obtaining a matched hardware specific function based on the lookup, wherein the matched hardware specific function is one of the hardware specific functions from the hardware specific library; and modifying the graphical model code based on the matched hardware specific function.
摘要翻译： 用于基于图形模型生成代码的计算机实现的方法可以包括：将所述图形模型转换成图形模型代码，所述图形模型代码包括第一图形模型代码功能; 在硬件特定库中执行对第一图形模型代码功能的查找，硬件特定库包括图形模型代码功能和硬件特定功能之间的多个关系，其中第一图形模型代码功能是图形模型代码功能之一 ; 基于查找获得匹配的硬件特定功能，其中匹配的硬件特定功能是来自硬件特定库的硬件特定功能之一; 并基于匹配的硬件特定功能修改图形模型代码。
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公开(公告)号：US07089223B2
公开(公告)日：2006-08-08
申请号：US09896925
申请日：2001-06-29
申请人： Andrew C. Bartlett , Paul Jackson
发明人： Andrew C. Bartlett , Paul Jackson
CPC分类号： G06F17/5009 , G05B13/028
摘要： Software for building a block diagram representation of a system includes instructions for defining a propagation block having an input port for receiving information indicative of an attribute set of an input signal and an output port for providing information indicative of an attribute set of an output signal on the basis of the attributes of the input signal. The software includes instructions for associating, with the propagation block, a rule-set for determining the output attribute set on the basis of the input attribute-set.
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公开(公告)号：US6035632A
公开(公告)日：2000-03-14
申请号：US135759
申请日：1998-08-18
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/47
摘要： A method is provided for monitoring catalyst efficiency in a catalytic converter of a motor vehicle, comprising the steps of: (a) detecting an oxygen level of an exhaust gas from the vehicle's engine by using an oxygen sensor positioned at the outlet of the catalytic converter; (b) terminating fuel flow to the vehicle's engine; (c) detecting a change in the oxygen level in response to terminating fuel flow; (d) determining a time period from termination of fuel flow to detection of the change in oxygen level; and then (e) compensating this time period with respect to an exhaust flowrate, such that the compensated time period is indicative of catalyst efficiency of the catalytic converter. More specifically, the exhaust flowrate is determined from a manifold absolute pressure and an engine rotational speed of the engine. To achieve reliable and consistent results, catalyst monitoring of the present invention is only enabled under preferred vehicle operating conditions. In addition, catalyst monitoring may also determine a second measurement of the catalyst by determining a similar time period for catalyst response once the fuel flow returns to the engine.
摘要翻译： 提供一种用于监测机动车辆的催化转化器中的催化剂效率的方法，包括以下步骤：（a）通过使用位于催化转化器出口处的氧传感器来检测来自车辆发动机的废气的氧含量 ; （b）终止燃油流向车辆发动机; （c）响应于终止燃料流量检测氧气水平的变化; （d）确定从燃料流终止到检测氧水平变化的时间段; 然后（e）相对于废气流量补偿该时间段，使得补偿的时间段指示催化转化器的催化剂效率。 更具体地，排气流量由发动机的歧管绝对压力和发动机转速确定。 为了实现可靠和一致的结果，本发明的催化剂监测仅在优选的车辆操作条件下才能实现。 此外，催化剂监测还可以通过在燃料流量返回发动机后确定催化剂响应的类似时间段来确定催化剂的第二次测量。
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