公开(公告)号：US4569748A

公开(公告)日：1986-02-11

申请号：US731521

申请日：1985-05-07

申请人： Michihiro Yamakawa ,  Takao Akatsuka ,  Masao Kawaguchi ,  Jiro Nakano ,  Takao Ishibashi

发明人： Michihiro Yamakawa ,  Takao Akatsuka ,  Masao Kawaguchi ,  Jiro Nakano ,  Takao Ishibashi

IPC分类号： G01N27/41 ,  G01N27/403 ,  G01N27/407 ,  G01N27/409 ,  G01N27/58

CPC分类号： G01N27/407 ,  G01N27/4078

摘要： An oxygen sensor according to the present invention comprises a tumbler-shaped solid electrolytic element formed of an oxygen-ion-conductive metal oxide. A first electrode and a lead electrically connected thereto are formed on the outer peripheral surface of the element which is exposed to exhaust gas. A second electrode is fixed to the inner peripheral surface of the element which is exposed to the atmosphere. The element is held by a ring-shaped metallic holder. The holder and the first electrode are electrically insulated from each other. A conductive metallic pipe member is disposed between the element and the holder. One end of the pipe member is electrically connected to the lead by means of a conductive metal ring. A partition wall extends integrally from one end of the pipe member, defining between its inner surface and the other peripheral surface of the element a space for housing the conductive metal ring between the pipe member and the lead. A seal member is interposed between the outer peripheral surfaces of the pipe member and the partition wall and the inner peripheral surface of the holder. The seal member is formed by compacting a powdered electrial insulating material.

摘要翻译： 根据本发明的氧传感器包括由氧离子传导性金属氧化物形成的转筒形固体电解质元件。 在暴露于废气的元件的外周面上形成有第一电极和与其电连接的引线。 第二电极固定在暴露于大气的元件的内周面上。 该元件由环形金属支架固定。 保持器和第一电极彼此电绝缘。 导电金属管构件设置在元件和保持器之间。 管构件的一端通过导电金属环电连接到引线。 分隔壁从管构件的一端整体延伸，在其内表面和元件的另一个外周表面之间形成用于将导电金属环容纳在管构件和引线之间的空间。 密封构件设置在管构件的外周面与分隔壁与保持件的内周面之间。 密封构件通过压制粉末状电绝缘材料形成。

公开(公告)号：US4611562A

公开(公告)日：1986-09-16

申请号：US666470

申请日：1984-10-30

申请人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Masao Kawaguchi

发明人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Masao Kawaguchi

IPC分类号： F02D41/34 ,  F02D41/00 ,  F02D41/14 ,  G01N27/406 ,  G01N27/409 ,  F02M7/00 ,  G01N27/46

CPC分类号： F02D41/1494 ,  G01N27/4065 ,  G01N27/4067

摘要： An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method is disclosed for controlling the power supplied to said heater by restricting it to be less than a predetermined value. This restriction may be done by controlling the value of a relatively steady current flowing through said heater, or alternatively may be done by supplying an intermittent voltage to said heater and by controlling the duty factor of said intermittent voltage. The power supplied to said heater may be determined by detecting the current flowing through said heater, or may be determined by detecting the voltage across said heater and the current flowing through said heater. Thereby, during engine heating up operation, the temperature of the heater element is raised as quickly as practicable, without any risk of over quick heating of the heater occurring, which might lead to damage thereto. Accordingly it is ensured that engine performance and the quality of exhaust gas emissions at the time of such engine warming up operation are good. A system is also described for implementing this method.

摘要翻译： 内燃机具有排气系统和安装在排气系统上的氧传感器，该排气系统包括用于加热传感器元件的传感器元件和电动加热器。 公开了一种通过将其限制为小于预定值来控制供应给所述加热器的功率的方法。 该限制可以通过控制流经所述加热器的相对稳定的电流的值来进行，或者可以通过向所述加热器提供间歇电压并且通过控制所述间歇电压的占空系数来完成。 提供给所述加热器的功率可以通过检测流过所述加热器的电流来确定，或者可以通过检测所述加热器两端的电压和流过所述加热器的电流来确定。 因此，在发动机加热运转时，加热器元件的温度尽可能快地上升，而不会发生加热器的过快加热的风险，这可能导致其损坏。 因此，能够确保在发动机升温运转时的发动机性能和排气质量良好。 还描述了用于实现该方法的系统。

公开(公告)号：US4694809A

公开(公告)日：1987-09-22

申请号：US898783

申请日：1986-08-15

申请人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Masao Kawaguchi

发明人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Masao Kawaguchi

IPC分类号： F02D41/14 ,  G01N27/406 ,  F02M51/00 ,  C25B1/24 ,  F02M7/00

CPC分类号： F02D41/1494 ,  G01N27/4067

摘要： An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method is disclosed for controlling the power supplied to the heater by determining a target value therefor according to engine operational parameters, by applying a smoothing correction to the target value to produce an actual value, and by supplying power to the heater in an amount according to this actual power value. The smoothing may be done by time-smoothing, and may be done by performing the calculation repeatedly in a cycle and by setting the actual power value amount equal to a function of this target power value and of values of this actual power value amount determined in previous cycles. This function may take the form of a weighted average, and as a special case such a weighted average may use only the actual power value amount determined in the previous cycle. Accordingly it is ensured that the heater is properly operated even in the case of quick variation in the engine operational parameters, which due to system inertia will only alter the exhaust gas temperature with a certain time lag. Thus, the oxygen sensor is properly kept heated up, even in such quick engine operational state alteration conditions, and engine performance and the quality of exhaust gas emissions at such a time are ensured to be good. A system is also described for implementing this method.

摘要翻译： 内燃机具有排气系统和安装在排气系统上的氧传感器，该排气系统包括用于加热传感器元件的传感器元件和电动加热器。 公开了一种通过根据发动机工作参数确定其目标值来控制供给加热器的功率的方法，通过对目标值施加平滑校正以产生实际值，并且通过向加热器供电，其量为 到这个实际的功率值。 可以通过时间平滑来进行平滑处理，并且可以通过在一个周期中重复执行计算，并且通过将实际功率值量设置为等于该目标功率值的函数和该实际功率值的值来确定 以前的周期。 该函数可以采取加权平均的形式，并且作为特殊情况，这样的加权平均值可以仅使用在前一周期中确定的实际功率值量。 因此，即使在发动机操作参数的快速变化的情况下，加热器也被适当地操作，这由于系统惯性将仅以一定的时间滞后改变排气温度。 因此，即使在这样的快速发动机运转状态改变条件下，氧传感器被适当地保持加热，并且确保发动机性能和这样的排气质量良好。 还描述了用于实现该方法的系统。

公开(公告)号：US4626337A

公开(公告)日：1986-12-02

申请号：US729854

申请日：1985-05-02

申请人： Yasumichi Hotta ,  Takao Akatsuka ,  Masao Kawaguchi ,  Jiro Nakano ,  Takao Ishibashi

发明人： Yasumichi Hotta ,  Takao Akatsuka ,  Masao Kawaguchi ,  Jiro Nakano ,  Takao Ishibashi

IPC分类号： G01N27/41 ,  G01N27/407 ,  G01N27/409 ,  G01N27/46

CPC分类号： G01N27/4075 ,  G01N27/407 ,  G01N27/4078

摘要： The oxygen sensor has a solid electrolytic element made of an oxygen ion-conducting metal oxide. This element is formed in a cup shape, closed at one end and opened at its other end. The outer peripheral surface of the element is exposed to exhaust gas, and the inner peripheral surface of the element is exposed to the atmosphere. A first electrode is fixed to the outer peripheral surface of the element, and a second electrode is fixed to the inner peripheral surface of the element. An electrically insulating layer is formed on the outer peripheral surface of the element except where the first electrode is disposed. A metal lead of thin film, connected to the first electrode, is formed on the insulating layer. Further, a retaining lead connected to the first electrode is formed on the metal lead. This retaining lead is formed by densely sintering a conductive material and a binding material.

摘要翻译： 氧传感器具有由氧离子传导金属氧化物制成的固体电解质元件。 该元件形成为杯形，在一端封闭并在其另一端开口。 元件的外周面暴露于废气中，元件的内周面暴露在大气中。 第一电极固定在元件的外周面上，第二电极固定在元件的内周面上。 除了设置第一电极之外，在元件的外周表面上形成电绝缘层。 连接到第一电极的薄膜的金属引线形成在绝缘层上。 此外，在金属引线上形成连接到第一电极的保持引线。 该保持引线通过密集地烧结导电材料和粘合材料而形成。

公开(公告)号：US4563991A

公开(公告)日：1986-01-14

申请号：US666465

申请日：1984-10-30

申请人： Takao Akatsuka ,  Jiro Nakano ,  Takao Ishibashi ,  Masao Kawaguchi

发明人： Takao Akatsuka ,  Jiro Nakano ,  Takao Ishibashi ,  Masao Kawaguchi

IPC分类号： F02D41/00 ,  F02D41/14 ,  F02B3/00

CPC分类号： F02D41/149 ,  F02D41/1494

摘要： An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method is disclosed for controlling the air/fuel ratio of the air-fuel mixture supplied to the engine, by, when the voltage of the power supply to the heater has dropped below a first predetermined value and thereafter has remained below a second predetermined value higher than the first predetermined value for longer than a predetermined time period, controlling the air/fuel ratio according to engine operational parameters by an open loop form of control with no account being taken of the output signal of the oxygen sensor, and otherwise controlling the air/fuel ratio according to these engine operational parameters by a closed loop form of control taking into account the output signal of the oxygen sensor so as to obtain an optimum air/fuel ratio for the engine by a feedback control process. Accordingly it is ensured that the air/fuel ratio of the engine is kept appropriate, even if the voltage of the battery drops so low that it can no longer properly power the oxygen sensor heater, which causes the output signal of the oxygen sensor to be no longer reliable for indicating the amount of oxygen in the exhaust gases of the engine. A system is also described for implementing this method.

摘要翻译： 内燃机具有排气系统和安装在排气系统上的氧传感器，该排气系统包括用于加热传感器元件的传感器元件和电动加热器。 公开了一种用于控制供给发动机的空气燃料混合物的空燃比的方法，当加热器的电源的电压下降到第一预定值以下，然后保持低于第二预定值时 高于第一预定值长于预定时间段，根据发动机操作参数通过开环形式的控制来控制空燃比，而不考虑氧传感器的输出信号，否则控制 考虑到氧传感器的输出信号，通过闭环形式的控制，根据这些发动机工作参数的空气/燃料比，以便通过反馈控制过程获得发动机的最佳空气/燃料比。 因此，即使电池的电压下降到不能适当地为氧传感器加热器供电，氧传感器的输出信号为 不再可靠地指示发动机废气中的氧气量。 还描述了用于实现该方法的系统。

公开(公告)号：US4655182A

公开(公告)日：1987-04-07

申请号：US666388

申请日：1984-10-30

申请人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Mamoru Takata

发明人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Mamoru Takata

IPC分类号： F02D41/00 ,  F02D41/06 ,  F02D41/14 ,  G01N27/12 ,  G01N27/409

CPC分类号： F02D41/061 ,  F02D41/1494

摘要： An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating the sensor element. A method for controlling the electrical power supplied to the heater properly and quickly heats up the sensor element after engine starting from the cold condition. At the time of starting up the engine it is determined whether or not the temperature of the engine is less than a certain value. If so, the heater is provided with electrical power to the maximum practicable amount, for a certain time interval after the engine is started up. Thereby, during engine heating up operation, the temperature of the sensor element is brought up to its minimum proper operating temperature as quickly as practicable, and accordingly it is ensured that engine performance and the quality of exhaust gas emissions at the time of such engine warming up operation are good. A system is also described for implementing this method.

摘要翻译： 内燃机具有排气系统和安装在排气系统上的氧传感器，该排气系统包括用于加热传感器元件的传感器元件和电动加热器。 一种用于在从冷态发动机起动之后，适当地控制供应给加热器的电力并迅速加热传感器元件的方法。 在启动发动机时，确定发动机的温度是否小于一定值。 如果是这样，在发动机起动之后的一段时间间隔内，加热器被提供最大可行的量的电力。 因此，在发动机加热运转时，传感器元件的温度尽可能快地达到其最小正常工作温度，因此确保发动机性能和发动机加热时废气排放质量 上班操作不错。 还描述了用于实现该方法的系统。

公开(公告)号：US4561402A

公开(公告)日：1985-12-31

申请号：US670066

申请日：1984-11-09

申请人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Mamoru Takata

发明人： Jiro Nakano ,  Takao Ishibashi ,  Takao Akatsuka ,  Mamoru Takata

IPC分类号： F02D41/34 ,  F02D41/00 ,  F02D41/14 ,  G01N27/409 ,  G01N27/26

CPC分类号： F02D41/1494

摘要： An internal combustion engine has an exhaust system and an oxygen sensor fitted to the exhaust system including a sensor element and an electrically powered heater for heating it. The power supplied to the heater is controlled by determining a target value for it according to operational parameters of the engine, and by controlling the mean power in a time interval as follows: the voltage applied to the heater and the current flowing through it are detected, an intermittent voltage is supplied to the heater, and the duty ratio of the intermittent voltage is controlled so that the product of the heater voltage and the heater current is substantially equal to the target power, with the detection of the voltage supplied to the heater synchronized with the energization of the heater. A system is also described for implementing this method.

摘要翻译： 内燃机具有排气系统和安装在排气系统上的氧传感器，该排气系统包括传感器元件和用于加热它的电动加热器。 通过根据发动机的运行参数确定其目标值，并通过如下控制在时间间隔内的平均功率来控制提供给加热器的功率：检测加到加热器上的电压和流过它的电流 将间歇电压提供给加热器，并且控制间歇电压的占空比，使得加热器电压和加热器电流的乘积基本上等于目标功率，同时检测提供给加热器的电压 与加热器通电同步。 还描述了用于实现该方法的系统。

公开(公告)号：US4316656A

公开(公告)日：1982-02-23

申请号：US198838

申请日：1980-10-20

申请人： Takao Ishibashi ,  Kenjiro Osonoi

发明人： Takao Ishibashi ,  Kenjiro Osonoi

IPC分类号： G03B17/20 ,  G03B1/60

CPC分类号： G03B17/20

摘要： An information display arrangement is provided in a viewfinder of a movie camera or the like. The information display arrangement includes a first array of function indicators and a second array of quantity indicators. The function indicators are selectively actuable by a switch arrangement operated by the camera user and the quantity indicators display the quantity of the camera function selected. The information display arrangement also includes apparatus for accurately displaying battery voltage status and film supply information independent of the switch setting by the camera user.

摘要翻译： 在电影摄像机等的取景器中提供信息显示装置。 信息显示装置包括功能指示器的第一阵列和数量指示器的第二阵列。 功能指示器可由照相机用户操作的开关装置选择性地启动，并且数量指示器显示所选择的相机功能的数量。 信息显示装置还包括用于与摄像机用户独立于开关设置来准确地显示电池电压状态和胶片供给信息的装置。

公开(公告)号：US4052125A

公开(公告)日：1977-10-04

申请号：US678275

申请日：1976-04-19

申请人： Takao Ishibashi

发明人： Takao Ishibashi

IPC分类号： G03B19/18 ,  G03B31/00 ,  G03B31/02

CPC分类号： G03B31/02 ,  G03B19/18

摘要： A motion picture camera for simultaneous recording of picture and sound is provided with a starting and stopping device for controlling film transport mechanisms and displacing same into and out of operative orientation with the film as the camera is actuated and deactuated wherein the size of the film loop is maintained substantially constant before or after and during camera operation.

公开(公告)号：US4281909A

公开(公告)日：1981-08-04

申请号：US39993

申请日：1979-05-17

申请人： Takao Ishibashi ,  Kenjiro Osonoi

发明人： Takao Ishibashi ,  Kenjiro Osonoi

IPC分类号： G02B7/28 ,  G03B7/091 ,  G03B13/36 ,  G03B17/02 ,  G03B17/42 ,  G03B19/02 ,  G03B19/18 ,  H04N5/225 ,  G03B31/00

CPC分类号： H04N5/225 ,  G03B17/02 ,  G03B19/18

摘要： A modular camera system includes a basic camera having an image forming optical system, image focal plane arrangement, and predetermined imaging and camera functions. The modular camera system further includes modules that are selectively attachable and connectable to the basic camera for providing additional camera and imaging functions and controls. The module includes appropriate module control circuitry for controlling the operation of the basic camera concerning predetermined camera and imaging functions when the module is attached to the basic camera to form the modular camera system.

摘要翻译： 模块化摄像机系统包括具有图像形成光学系统，图像焦平面布置以及预定成像和相机功能的基本相机。 模块化摄像机系统还包括可选择性地附接并连接到基本相机的模块，用于提供附加的相机和成像功能和控制。 该模块包括适当的模块控制电路，用于当模块附接到基本相机以形成模块化摄像机系统时，控制基本摄像机对于预定摄像机的操作和成像功能。