Air/fuel ratio control system for internal combustion engine
    1.
    发明授权
    Air/fuel ratio control system for internal combustion engine 失效
    内燃机空燃比控制系统

    公开(公告)号:US5199409A

    公开(公告)日:1993-04-06

    申请号:US878586

    申请日:1992-05-05

    CPC分类号: F02D41/1486 F02D41/1477

    摘要: A system for controlling an air/fuel ratio for an internal combustion engine, using an oxygen concentration sensor having a first chamber for introducing therein exhaust gas of the engine and a second chamber for introducing therein reference ambient air to detect oxygen content in the exhaust gas. In order to eliminate exhaust gas pulsation which could affect on detection accuracy, it is firstly determined if engine operation is in a transient state or in a normal state. Then the detected oxygen concentration value in the preceding cycle is added to the product obtained by multiplying the deviation between the values in the preceding and current cycles by a coefficient .alpha.. The coefficient is made different in the transient state and in the normal state. In the normal engine operation state, the coefficient .alpha. is determined from engine speed and load.

    摘要翻译: 一种用于控制内燃机的空燃比的系统,其使用具有用于在其中引入发动机的排气的第一室的氧浓度传感器和用于在其中引入参考环境空气的第二室,以检测废气中的氧含量 。 为了消除可能影响检测精度的废气脉动,首先确定发动机运转是处于过渡状态还是处于正常状态。 然后,将前一周期中检测到的氧浓度值加到通过将前一周期和当前周期中的值之间的偏差乘以系数α而获得的乘积。 系数在过渡状态和正常状态下不同。 在正常发动机运转状态下,根据发动机转速和负荷确定系数α。

    System for determining deterioration of oxygen concentration sensor
    2.
    发明授权
    System for determining deterioration of oxygen concentration sensor 失效
    用于确定氧浓度传感器劣化的系统

    公开(公告)号:US5391282A

    公开(公告)日:1995-02-21

    申请号:US152090

    申请日:1993-11-15

    CPC分类号: F02D41/1495 G01N27/4175

    摘要: A system for determining an oxygen concentration sensor deterioration caused when foreign particles has clogged at a slit for introducing exhaust gas of an internal combustion engine to block the same. Since it is found by the inventors that sensor output fluctuates greatly between its maximum and minimum values in a TDC interval as the clogging increases, the deviation between the maximum and minimum is first calculated. The calculated deviation is then compared with a reference value and if it exceeds the reference value, the sensor is presumed to deteriorate. The reference value is varied on engine speed, engine load, or an air/fuel ratio of the engine.

    摘要翻译: 一种用于确定当外部颗粒在用于引入内燃机的排气的狭缝处堵塞时阻止该氧浓度传感器劣化的系统。 由于本发明人发现,随着堵塞增加,传感器输出在TDC间隔的最大值和最小值之间大幅度波动,所以首先计算最大值与最小值之间的偏差。 然后将计算的偏差与参考值进行比较,并且如果超过参考值,则认为传感器劣化。 发动机转速,发动机负荷或发动机的空燃比变化。

    Method of detecting deterioration of exhaust gas ingredient
concentration sensor
    3.
    发明授权
    Method of detecting deterioration of exhaust gas ingredient concentration sensor 失效
    检测废气成分浓度传感器劣化的方法

    公开(公告)号:US5179929A

    公开(公告)日:1993-01-19

    申请号:US796415

    申请日:1991-11-22

    IPC分类号: F02D41/14 F02D45/00

    摘要: A method of detecting deterioration of an exhaust gas ingredient concentration sensor for use in controlling an air-fuel ratio of a mixture supplied to an internal combustion engine having an exhaust system in which the sensor is arranged. The sensor has an output characteristic approximately proportional to concentration of a specific ingredient in exhaust gases emitted from the engine. The air-fuel ratio is feedback-controlled to a desired air-fuel ratio by calculating an amount of fuel supplied to the engine by the use of a desired air-fuel ratio coefficient indicative of the desired air-fuel ratio and set in dependence on operating conditions of the engine, and an air-fuel ratio correction coefficient set in dependence on a value of an output from the sensor and the desired air-fuel ratio coefficient. A plurality of average values of the air-fuel ratio correction coefficient are calculated, respectively, when the desired air-fuel ratio falls within a plurality of predetermined ranges. The average values thus calculated are compared with each other. A degree of deterioration of the sensor is determined from results of the comparison. Further, a method of feedback-controlling the air-fuel ratio in the above-mentioned manner, in which the value of the output from the sensor is corrected in response to the degree of deterioration thus determined.

    摘要翻译: 一种检测废气成分浓度传感器的劣化的方法,所述废气成分浓度传感器用于控制供给具有布置有所述传感器的排气系统的内燃机的混合物的空燃比。 传感器的输出特性与发动机排放的废气中特定成分的浓度大致成正比。 通过使用表示所需空燃比的期望的空燃比计算燃料供应量来计算空燃比,从而将空燃比反馈控制到所需的空燃比,依照 发动机的工作条件以及根据传感器的输出值和期望的空燃比系数设定的空燃比校正系数。 当期望的空燃比落在多个预定范围内时,分别计算空燃比校正系数的多个平均值。 将这样计算的平均值相互比较。 根据比较结果确定传感器的劣化程度。 此外,以上述方式反馈控制空燃比的方法,其中响应于如此确定的劣化程度校正来自传感器的输出值。

    Air-fuel ratio control method for internal combustion engines
    4.
    发明授权
    Air-fuel ratio control method for internal combustion engines 失效
    内燃机空燃比控制方法

    公开(公告)号:US5165381A

    公开(公告)日:1992-11-24

    申请号:US781977

    申请日:1991-10-24

    IPC分类号: F02D41/04 F02D41/14

    摘要: An air-fuel ratio control method for an internal combustion engine. An amount of fuel to be supplied to the engine is calculated in response to operating conditions of the engine and output from an exhaust gas ingredient concentration sensor, to thereby feedback-control the air-fuel ratio of a mixture supplied to the engine to a desired air-fuel ratio. The method comprises the steps of (1) calculating a fuel cooling correction value for compensating for a change in an actual air-fuel ratio caused by cooling effects of actually-injected fuel, according to at least one parameter which can determine the amount of fuel to be supplied to the engine, and (2) calculating the amount of fuel to be supplied to the engine by the use of the fuel cooling correction value.

    摘要翻译: 一种用于内燃机的空燃比控制方法。 根据发动机的运转状况和从排气成分浓度传感器输出,计算供给到发动机的燃料量,从而将供给发动机的混合物的空燃比反馈至期望值 空燃比。 该方法包括以下步骤:(1)根据能够确定燃料量的至少一个参数,计算用于补偿由实际喷射的燃料的冷却效果引起的实际空燃比的变化的燃料冷却校正值 供给到发动机,以及(2)通过使用燃料冷却校正值来计算供给到发动机的燃料量。

    Glasses for image viewing
    7.
    发明授权
    Glasses for image viewing 有权
    用于图像查看的眼镜

    公开(公告)号:US08491116B2

    公开(公告)日:2013-07-23

    申请号:US13528133

    申请日:2012-06-20

    IPC分类号: G02C7/12

    摘要: Glasses of present invention includes a frame portion which includes an opening through which an image displayed on a displaying device is viewed with bilateral eyes, a temple portion configured to be capable of being opened and closed against the frame portion and which includes spring material capable of being inelastically deformed, a movable portion arranged at one of the temple portion and the frame portion and which contacts to the other of the temple portion and the frame portion when the temple portion is opened to the maximum while the contacting position is movable, and a contacting portion which is arranged at the other of the temple portion and the frame portion and which contacts to the movable portion when the temple portion is opened to the maximum and varies the maximum open amount of the temple portion corresponding to movement of the movable portion.

    摘要翻译: 本发明的眼镜包括框架部分,其包括用双眼来观看显示装置上显示的图像的开口,被配置为能够相对于框架部分打开和关闭的镜腿部分,并且包括能够 当所述镜腿部在所述接触位置是可移动的时将所述镜腿部分最大打开时,所述可移动部分布置在所述镜腿部分和所述框架部分中的一个处,并且与所述镜腿部分和所述框架部分中的另一个接触, 接触部分,其布置在所述镜腿部分和所述框架部分中的另一个处,并且当所述镜腿部分最大打开时改变与所述可动部分的移动相对应的所述镜腿部分的最大打开量。

    METHOD FOR DETECTING PRESUMED IGA NEPHROPATHY AND METHOD FOR SCREENING IGA NEPHROPATHY PATIENTS
    9.
    发明申请
    METHOD FOR DETECTING PRESUMED IGA NEPHROPATHY AND METHOD FOR SCREENING IGA NEPHROPATHY PATIENTS 失效
    检测IGA神经病变的方法及筛选IGA神经病患者的方法

    公开(公告)号:US20120034611A1

    公开(公告)日:2012-02-09

    申请号:US13148344

    申请日:2010-02-10

    IPC分类号: C12Q1/68 C07K16/12 G01N33/569

    摘要: Based on detection of Treponema bacteria or Campylobacter bacteria present in a sample derived from the tonsil of a subject who has a positive result on at least one of a urinary protein test and a urinary occult blood test, or of a patient diagnosed with possible IgA nephropathy, presumed IgA nephropathy can be detected with a high accuracy, in a simple and quick manner without physical burden on subjects. Also, an IgA nephropathy patient for whom tonsillectomy is effective in therapy of IgA nephropathy can be selected with a high accuracy, in a simple and quick manner without physical burden on subjects.

    摘要翻译: 基于检测来源于受试者的扁桃体的样品中的梅毒螺旋体细菌或弯曲杆菌细菌,其在至少一种尿蛋白测试和尿液潜血试验中具有阳性结果,或者被诊断患有可能的IgA肾病的患者 推测IgA肾病可以以高精度,简单快速的方式检测,无需对受试者造成身体负担。 此外,扁桃体切除术有效治疗IgA肾病的IgA肾病患者可以以高精度,简单快速的方式选择,无需对受试者造成身体负担。

    Sulfur purge control device for an internal combustion engine
    10.
    发明授权
    Sulfur purge control device for an internal combustion engine 有权
    用于内燃机的硫吹扫控制装置

    公开(公告)号:US07997068B2

    公开(公告)日:2011-08-16

    申请号:US12044582

    申请日:2008-03-07

    IPC分类号: F01N3/00

    摘要: In a control device for an internal combustion engine provided with a NOx catalytic converter in an exhaust passage thereof, the progress of an undesired substance removal process is computed from the consumption of the reducing agent contained in the exhaust gas in the NOx catalytic converter. The undesired substance may include sulfur contents and NOx captured in the NOx catalytic converter. This computation may be based on the air fuel ratio of the exhaust gas upstream of the NOx catalytic converter and the estimated consumption of the reducing agent contained in the exhaust gas or on the difference between the air fuel ratios of the exhaust gas upstream and downstream of the NOx catalytic converter. In either case, the accuracy can be improved by taking into account the space velocity of the exhaust gas.

    摘要翻译: 在用于其排气通道中具有NOx催化转化器的内燃机的控制装置中,根据NOx催化转化器中的排气中所含的还原剂的消耗量计算出不需要的物质去除过程的进展。 不期望的物质可以包括在NOx催化转化器中捕获的硫含量和NOx。 该计算可以基于NOx催化转化器上游的废气的空燃比和废气中包含的还原剂的估计消耗量,或者废气上游和下游的排气的空燃比 NOx催化转化器。 在这两种情况下,通过考虑废气的空间速度可以提高精度。