Control system for internal combustion engines for vehicles
    2.
    发明授权
    Control system for internal combustion engines for vehicles 失效
    车辆内燃机控制系统

    公开(公告)号:US5827151A

    公开(公告)日:1998-10-27

    申请号:US845397

    申请日:1997-04-24

    摘要: A control system for an internal combustion engine for a vehicle has an automatic transmission. The control system is operable during gear shifting of the automatic transmission, for changing output torque of the engine to reduce a shock generated during the gear shifting. During gear shifting in which a change gear ratio of the automatic transmission is to be increased, upon stepping-on of the accelerator pedal of the vehicle, the output torque of the engine is increased by a first predetermined amount based on an operating condition of the vehicle when an increase occurs in the rotational speed of the engine due to the gear shifting. After the output torque of the engine is increased by the first predetermined amount, the output torque of the engine is decreased by a second predetermined amount based on the operating condition of the vehicle. After the output torque of the engine is decreased by the second predetermined amount, the output torque of the engine is progressively recovered to a value assumed upon completion of the gear shifting.

    摘要翻译: 用于车辆的内燃机的控制系统具有自动变速器。 控制系统在自动变速器的变速期间可操作,用于改变发动机的输出转矩,以减少变速期间产生的冲击。 在要增加自动变速器的变速比的变速期间,当车辆的加速器踏板踩踏时,基于发动机的运转状态,发动机的输出转矩增加第一预定量 当由于变速而发动机的转速发生增加时车辆。 在发动机的输出转矩增加了第一预定量之后,基于车辆的运行状态,发动机的输出转矩减小了第二预定量。 在发动机的输出扭矩减小第二预定量之后,发动机的输出转矩逐渐恢复到变速完成时假设的值。

    Cylinder-by-cylinder air-fuel ratio-estimating system for internal
combustion engines
    5.
    发明授权
    Cylinder-by-cylinder air-fuel ratio-estimating system for internal combustion engines 失效
    用于内燃机的缸缸空燃比估计系统

    公开(公告)号:US5806506A

    公开(公告)日:1998-09-15

    申请号:US900879

    申请日:1997-07-25

    IPC分类号: F02D41/00 F02D41/14 F02D41/34

    摘要: A cylinder-by-cylinder air-fuel ratio-estimating system for an internal combustion engine includes an air-fuel ratio sensor arranged in the exhaust system of the engine, at a confluent portion of the exhaust system. The air-fuel ratio of a mixture supplied to each of the cylinders is estimated based the output from the air-fuel ratio sensor, by using an observer for observing the internal operative state of the exhaust system based on a model representative of the behavior of the exhaust system. The air-fuel ratio at the confluent portion is estimated by using a delay parameter representative of the response delay of the air-fuel ratio sensor, and the air-fuel ratio of the mixture supplied to each of the cylinders is estimated by using the estimated air-fuel ratio at the confluent portion. The estimated air-fuel ratio of the mixture supplied to each of the cylinders is subsequently used for estimating a value of the air-fuel ratio at the confluent portion of the exhaust system.

    摘要翻译: 用于内燃机的逐缸气缸比空气比估计系统包括布置在发动机的排气系统中的排气系统的汇合部分处的空燃比传感器。 基于来自空燃比传感器的输出,基于表示排气系统的内部运行状态的观察者,基于表示排气系统的行为的模型,估计供给到各气缸的混合气体的空燃比 排气系统。 通过使用表示空燃比传感器的响应延迟的延迟参数来估计汇合部分的空燃比,并且通过使用估计的空气 - 燃料比传感器来估计提供给每个气缸的混合物的空燃比 汇合部分的空燃比。 供给到各个气缸的混合物的估计空燃比随后被用于估计排气系统的汇合部分处的空燃比的值。

    Throttle valve control system for internal combustion engines
    6.
    发明授权
    Throttle valve control system for internal combustion engines 失效
    内燃机节气门控制系统

    公开(公告)号:US5611309A

    公开(公告)日:1997-03-18

    申请号:US560988

    申请日:1995-11-20

    摘要: A throttle valve control system for an internal combustion engine installed in a vehicle. A throttle valve opening sensor detects an actual opening of a throttle valve, and an ECU calculates a desired opening of the throttle valve according to the rotational speed of the engine and the required torque of the engine, which is calculated according to operating conditions of the engine and operating conditions of the vehicle, and electrically controls the throttle valve such that the detected actual opening of the throttle valve becomes equal to the desired opening of the throttle valve. An intake pressure sensor detects actual intake pressure within the intake passage, and desired intake pressure within the intake passage is calculated according to the rotational speed of the engine and the required torque of the engine. The desired intake pressure is compared with the detected actual intake pressure, and the desired opening of the throttle valve is corrected based on results of the comparison.

    摘要翻译: 一种用于安装在车辆中的内燃机的节气门控制系统。 节流阀开度传感器检测节气门的实际开度,并且ECU根据发动机的转速和发动机的所需转矩来计算节气门的期望开度,该转矩是根据发动机的运转条件 发动机和操作条件,并且电控制节流阀,使得所检测到的节气门的实际开度变得等于节气门的所需开度。 进气压力传感器检测进气通道内的实际进气压力,并且根据发动机的转速和发动机的所需转矩来计算进气通道内的所需进气压力。 将所需的进气压力与检测到的实际进气压力进行比较,并根据比较结果校正节气门的所需开度。

    Object image detecting method and system
    7.
    发明授权
    Object image detecting method and system 失效
    对象图像检测方法及系统

    公开(公告)号:US06181805B2

    公开(公告)日:2001-01-30

    申请号:US08288194

    申请日:1994-08-09

    IPC分类号: G06K900

    CPC分类号: G06K9/00288

    摘要: In a dictionary image generating section, images of objects each belonging to any one of L categories are taken by a camera from predetermined M directions, a matching region of the object to be recognized is extracted from each of the object images, and dictionary images (N=L×M, n=1, 2, . . . , N) which are the representatives of combinations of direction and category are generated and stored together with the directions of the objects. When a test image is given, the degree of similarity r(n, X, Y) between an n-th dictionary image and the image region at the matching position (X, Y) in the test image is computed by a matching section. This matching process is repeated with the matching position (X, Y) and the number n of the dictionary image being varied, and the matching position (Xmax, Ymax) where the degree of similarity r(n) becomes the highest is detected.

    摘要翻译: 在字典图像生成部中,通过摄像机从预定的M个方向拍摄属于L个类别中的任一个的对象的图像,从每个对象图像和字典图像中提取要识别的对象的匹配区域 作为方向和类别组合的代表的N = LxM,n = 1,2,...,N)与对象的方向一起生成和存储。 当给出测试图像时,通过匹配部分计算测试图像中第n个词典图像和匹配位置(X,Y)处的图像区域之间的相似度r(n,X,Y)的程度。 重复该匹配处理,匹配位置(X,Y)和字典图像的数量n变化,并且检测相似度r(n)变得最高的匹配位置(Xmax,Ymax)。

    Method and apparatus for moving object extraction based on background
subtraction
    8.
    发明授权
    Method and apparatus for moving object extraction based on background subtraction 失效
    基于背景减法的移动物体提取的方法和装置

    公开(公告)号:US5748775A

    公开(公告)日:1998-05-05

    申请号:US401972

    申请日:1995-03-09

    摘要: A moving object extraction based on background subtraction capable of stably extracting the moving object under various environments. Temporal changes of image feature parameter values for sub-regions subdividing a frame of each input image are stored, and the background image is reconstructed by statistically processing a temporal change of the image feature parameter values for each sub-region within a prescribed target region of the frame over a prescribed period of time to obtain the statistical quantity characterizing that temporal change, judging whether that temporal change is due to an illumination change or not according to the obtained statistical quantity and a prescribed illumination change judging condition, and updating a background image value for each sub-region by a new background image value according to the image feature parameter values for each sub-region during the prescribed period of time. Then, a subtraction processing is applied to one of the input images and the reconstructed background image, and a binarization processing is applied to the obtained subtraction image so as to extract the moving object region from the input images.

    摘要翻译: 基于背景消除的移动物体提取能够在各种环境下稳定地提取移动物体。 存储对每个输入图像的帧进行细分的子区域的图像特征参数值的时间变化,并且通过统计处理在规定的目标区域内的每个子区域的图像特征参数值的时间变化来重构背景图像 在规定时间段内获取表示该时间变化的统计量,根据获得的统计量判断该时间变化是否由于照明变化而规定的照明变化判断条件,以及更新背景图像 根据在规定时间段内的每个子区域的图像特征参数值,通过新的背景图像值来计算每个子区域的值。 然后,将减法处理应用于输入图像和重构背景图像之一,并且将二值化处理应用于所获得的减影图像,以便从输入图像中提取移动对象区域。

    Method and apparatus for directional counting of moving objects
    9.
    发明授权
    Method and apparatus for directional counting of moving objects 失效
    移动物体定向计数的方法和装置

    公开(公告)号:US5574762A

    公开(公告)日:1996-11-12

    申请号:US522196

    申请日:1995-08-31

    摘要: A scheme for directional counting of moving objects capable of counting moving objects stably while determining passing directions of the moving objects accurately. In this scheme, a counting line is set in an image field of the sequential images, and a dynamic image formed by pixels forming the counting line is obtained for each frame and while a succesively updated background image is obtained. Then, a subtraction and binarization processing are applied to the dynamic image and the background image to extract a moving object region, and a moving object image is formed by sequentially labeling the moving object region in time order. Then, a number of moving objects passing through a monitoring target location is counted according to the moving object image, while upper and lower direction judgement regions are set above and below the counting line and a passing direction of each moving object is determined by judging one of the upper and lower direction judgement regions in which the moving object is present at a time of a formation start/end time of the moving object image.

    摘要翻译: 一种能够精确地确定运动物体的通过方向的运动物体稳定计数的运动物体的方向计数方案。 在该方案中,在顺序图像的图像场中设置计数线,并且对于每个帧获得由形成计数线的像素形成的动态图像,并且获得连续更新的背景图像。 然后,将减法和二值化处理应用于动态图像和背景图像以提取移动对象区域,并且通过以时间顺序顺序地标记移动对象区域来形成移动对象图像。 然后,根据移动物体图像计数穿过监视目标位置的多个移动物体,同时将上下方向判断区域设置在计数线的上方和下方,并且通过判断每个移动物体的通过方向来确定 在移动物体图像的形成开始/结束时刻的时刻存在移动物体的上下方向判断区域。

    Character recognition system
    10.
    发明授权
    Character recognition system 失效
    字符识别系统

    公开(公告)号:US4163214A

    公开(公告)日:1979-07-31

    申请号:US902175

    申请日:1978-05-02

    IPC分类号: G06K9/62 G06K9/80 G06K9/12

    CPC分类号: G06K9/50 G06K9/80 G06K2209/01

    摘要: A character in a pattern area is optically scanned and the scanned black and white signal cells of the character are stored in a digital memory. The character in the digital memory is recognized through an initial feature extraction process, unification process, concentration process, and recognition process. In the initial feature extraction process each cell thus scanned is encoded according to the presence of a character line or a black cell in a predetermined direction from each cell. The unification process unifies the code of each cell according to a predetermined algorithm, and the concentration process provides a concentrated code for each cell. The recognition process counts each of the concentrated codes and determines the class to which the character to be recognized belongs when the number of particular concentrated codes reaches a predetermined threshold which is defined for each class. The stepping up in the counting of the concentrated code in the recognition process is performed with some conditions, in which, for instance, only when a predetermined concentrated code appears a predetermined number of times, the particular concentrated code is initiated for counting.

    摘要翻译: 对图案区域中的字符进行光学扫描,将字符的扫描的黑白信号单元存储在数字存储器中。 数字存储器中的字符通过初始特征提取过程,统一处理,浓度处理和识别过程来识别。 在初始特征提取处理中,根据来自每个单元的预定方向的字符行或黑色单元的存在对这样扫描的每个单元进行编码。 统一过程根据预定算法统一每个单元的代码,并且浓度处理为每个单元提供集中代码。 识别处理对每个集中代码进行计数,并且当特定集中代码的数量达到为每个类定义的预定阈值时,确定要识别的字符属于的类。 在识别处理中对集中代码的计数中的增加是用一些条件来执行的,其中例如仅在预定的集中代码出现预定次数时才启动特定的集中代码进行计数。