公开(公告)号：US07462266B2

公开(公告)日：2008-12-09

申请号：US10329489

申请日：2002-12-27

申请人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

发明人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

IPC分类号： G01N27/407

CPC分类号： G01N27/417 ,  G01N27/4074 ,  G01N27/419

摘要： Apparatus for detecting the NOx concentration includes a first measurement chamber 20 communicating with the gas under measurement via a diffusion rate defining layer 4d and a second measurement chamber 26 communicating with the first measurement chamber 20 via diffusion limiting layers 6d, 22d. A first pump current IP1 is controlled so that an output of a Vs cell 6 will be equal to the reference voltage VCO for controlling the oxygen concentration in the first measurement chamber 20 to a pre-set low value. A constant voltage is applied across the second pump cell 8 for decomposing the NOx component in the second measurement chamber 26 for pumping out oxygen for detecting the NOx concentration from a second pump current IP2. The sensor temperature is detected from the internal resistance of the Vs cell for controlling the current supplied to the heaters 12, 14. If the temperature of the gas under measurement is changed rapidly, the sensor temperature is changed. The detected second pump current IP2 is corrected depending on an offset of the detected sensor temperature from the target temperature assuring detection of the NOx concentration to high accuracy.

摘要翻译： 用于检测NOx浓度的装置包括通过扩散速率限定层4d与测量的气体连通的第一测量室20和经由扩散限制层6d，22d与第一测量室20连通的第二测量室26。 控制第一泵电流IP1，使得Vs单元6的输出将等于用于将第一测量室20中的氧浓度控制为预定的低值的参考电压VCO。 在第二泵电池8上施加恒定电压，以分解第二测量室26中的NOx组分，以从第二泵电流IP2泵出用于检测NOx浓度的氧气。 从Vs单元的内部电阻检测传感器温度，用于控制供给到加热器12,14的电流。如果测量气体的温度快速变化，则传感器温度变化。 检测到的第二泵电流IP2根据检测到的传感器温度与目标温度的偏移量进行校正，确保将NOx浓度检测到高精度。

公开(公告)号：US06214207B1

公开(公告)日：2001-04-10

申请号：US08965512

申请日：1997-11-06

申请人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

发明人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

IPC分类号： G01N2741

CPC分类号： G01N27/417 ,  G01N27/4074

摘要： Using a sole Nox sensor Nox concentration and oxygen concentration are measured accurately. A measurement device for measuring NOx concentration and oxygen concentration comprises an NOx sensor 2 having a first measurement chamber 20 communicating via a diffusion rate regulating layer 4d with the gas under measurement and a second measurement chamber 26 communicating with the first measurement chamber 20 via diffusion rate regulating layers 6d, 22d. A first pump cell 4 and an oxygen concentration measurement Vs cell 6 are formed on the first measurement chamber 20, while a second pump cell 8 is formed on the second measurement chamber 26. Inside of the first measurement chamber 20 is controlled to a constant low oxygen concentration by controlling the first pump current IP1 so that output of Vs cell 6 will equal a reference voltage VC0. By applying a constant voltage across the second pump cell 8 NOx in the second measurement chamber 26 is decomposed to pump out oxygen. Thus NOx concentration and oxygen concentration are measured from the second pump current IP2 and from the first pump current IP1, respectively. During measurement, sensor temperature is detected from the internal resistance of the Vs cell for controlling heater current supplied to heaters 12, 14 to maintain a constant sensor temperature.

摘要翻译： 使用唯一的Nox传感器可以精确测量Nox浓度和氧气浓度。 用于测量NOx浓度和氧浓度的测量装置包括：NOx传感器2，其具有经由扩散速率调节层4d与测量气体连通的第一测量室20和经由扩散速率与第一测量室20连通的第二测量室26 调节层6d，22d。 在第一测量室20上形成第一泵浦单元4和氧浓度测量Vs单元6，而在第二测量室26上形成第二泵单元8.在第一测量室20的内部被控制为恒定的低 通过控制第一泵电流IP1使得Vs电池6的输出等于参考电压VC0的氧浓度。 通过在第二泵电池8上施加恒定电压，第二测量室26中的NOx被分解以抽出氧气。 因此，从第二泵电流IP2和第一泵电流IP1分别测量NOx浓度和氧浓度。 在测量期间，从Vs单元的内部电阻检测传感器温度，以控制提供给加热器12,14的加热器电流，以保持恒定的传感器温度。

公开(公告)号：US6082176A

公开(公告)日：2000-07-04

申请号：US96180

申请日：1998-06-12

申请人： Noriaki Kondo ,  Hiroshi Inagaki

发明人： Noriaki Kondo ,  Hiroshi Inagaki

IPC分类号： G01N27/407 ,  G01N33/00 ,  G01N7/00 ,  G01N27/26 ,  G01N31/12

CPC分类号： G01N33/0037 ,  G01N27/407

摘要： An NOx-concentration detecting apparatus is disclosed which enables a user to readily know a record of operating conditions of an NOx sensor. The apparatus includes an NOx sensor, pumping-current control means, constant-voltage application means, NOx-concentration detecting means, a heater and writing means for writing to a recorder variation of at least one parameter selected from a first pumping current value, a second pumping current value, the concentration of oxygen contained in the measurement gas and the concentration of NOx in the measurement gas. Also disclosed is an NOx-concentration detecting apparatus capable of determining the concentration of NOx at a high resolution even when different NOx sensors are used. The NOx-concentration detecting apparatus detects the first pumping current I.sub.P1, and the second pumping current I.sub.p2, corrects the detected values based on correction data stored on a floppy disk, and determines the concentration of NOx in the measurement gas using standard characteristics stored in ROM of the ECU, namely, characteristics representing correlations among the first pumping current I.sub.P1, the second pumping current I.sub.p2 and the concentration of NOx in the measurement gas. The correction data are used for making previously measured characteristics of the NOx sensor equal to the standard characteristics, which characteristics represent correlations among the first pumping current I.sub.P1, the second pumping current I.sub.p2 and the concentration of NOx in the measurement gas. Accordingly, when the concentration of NOx in the same measurement gas is measured using different NOx sensors, any of the NOx sensors can provide an accurate measurement.

摘要翻译： 公开了一种NOx浓度检测装置，其使得用户能够容易地知道NOx传感器的操作条件的记录。 该装置包括NOx传感器，泵送电流控制装置，恒定电压施加装置，NOx浓度检测装置，加热器和写入装置，用于向至少一个参数写入变化，该参数选自第一泵送电流值， 第二抽运电流值，测量气体中所含的氧浓度和测量气体中的NOx浓度。 还公开了一种即使在使用不同的NOx传感器时也能够以高分辨率确定NOx的浓度的NOx浓度检测装置。 NOx浓度检测装置检测第一泵送电流IP1，第二泵浦电流Ip2根据存储在软盘上的校正数据来校正检测值，并使用存储在ROM中的标准特性来确定测量气体中的NOx浓度 即表示第一泵送电流IP1，第二抽运电流Ip2与测量气体中的NOx浓度之间的相关性的特性。 校正数据用于使得先前测量的NOx传感器的特性等于标准特性，该特性表示第一泵送电流IP1，第二泵浦电流Ip2和测量气体中的NOx浓度之间的相关性。 因此，当使用不同的NOx传感器测量同一测量气体中的NOx的浓度时，任何NOx传感器都可以提供准确的测量。

公开(公告)号：US5754051A

公开(公告)日：1998-05-19

申请号：US755259

申请日：1996-11-22

申请人： Shigeru Miyata ,  Noriaki Kondo

发明人： Shigeru Miyata ,  Noriaki Kondo

IPC分类号： F02P3/04 ,  F02B1/04 ,  F02P17/12 ,  F02P17/00

CPC分类号： F02P17/12 ,  F02B1/04 ,  F02P2017/123

摘要： A misfire detecting device for an ignition system, comprises high voltage applying means for applying a pulsed high voltage to each spark plug of an engine after completion of firing of the spark plug, voltage restricting means for restricting a peak of the pulsed high voltage to a highest possible value that does not cause firing of the spark plug, voltage detecting means for detecting a plug voltage across a center electrode-to-outer electrode of the spark plug after reducing the same, and misfire detecting means for detecting a misfire at each cylinder on the basis of a decay characteristic of a detection voltage which is caused by application of the pulsed high voltage. In another embodiment, the misfire detecting device comprises high voltage applying means which monitors a detection voltage which is caused by application of the pulsed high voltage to each spark plug and controls the pulsed high voltage so that the detection voltage is maintained at a highest possible value that does not cause firing of the spark plug due to application of the pulsed high voltage to the spark plug.

摘要翻译： 一种用于点火系统的失火检测装置，包括：高电压施加装置，用于在完成火花塞点火之后向发动机的每个火花塞施加脉冲高电压;电压限制装置，用于将脉冲高电压的峰值限制到 不会引起火花塞点火的最高可能值;电压检测装置，用于在减小火花塞的中心电极对外电极之后检测插塞电压;以及失火检测装置，用于检测每个气缸的失火 基于由施加脉冲高电压引起的检测电压的衰减特性。 在另一个实施例中，失火检测装置包括高电压施加装置，其监测通过对每个火花塞施加脉冲高电压而引起的检测电压并控制脉冲高电压，使得检测电压保持在最高可能值 由于向火花塞施加脉冲高压，不会引起火花塞的点火。

公开(公告)号：US5592926A

公开(公告)日：1997-01-14

申请号：US356737

申请日：1994-12-15

申请人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

发明人： Shigeru Miyata ,  Noriaki Kondo ,  Hiroshi Inagaki

IPC分类号： G01M15/04 ,  F02B1/04 ,  F02D45/00 ,  F02P17/00 ,  F02P17/12

CPC分类号： F02P17/12 ,  F02B1/04 ,  F02P2017/006 ,  F02P2017/123 ,  F02P2017/125

摘要： A method of detecting a misfire of an ignition system for an internal combustion engine is provided. By the method, after completion of spark discharge of a spark plug, a high tension pulse which is not so high as to cause spark discharge is applied to each spark plug by way of a reverse current preventing diode and a secondary winding of an ignition coil or by way of a reverse current preventing diode and a leakage preventing diode for preventing ingress of an ignition high voltage. Misfire at each cylinder is detected on the basis of a voltage attenuation characteristic at a passing side terminal of the reverse current preventing diode. A device for carrying out the above method is also provided.

摘要翻译： 提供一种检测内燃机点火系统失火的方法。 通过该方法，在火花塞的火花放电完成之后，通过反向电流防止二极管和点火线圈的次级绕组向每个火花塞施加不高于引起火花放电的高压脉冲 或者通过用于防止点火高电压进入的反向电流防止二极管和防漏二极管。 基于反向电流防止二极管的通过侧端子处的电压衰减特性来检测每个气缸处的失火。 还提供了一种用于执行上述方法的装置。

公开(公告)号：US5450013A

公开(公告)日：1995-09-12

申请号：US180313

申请日：1994-01-12

申请人： Shigeru Miyata ,  Noriaki Kondo

发明人： Shigeru Miyata ,  Noriaki Kondo

IPC分类号： F02P17/00 ,  F02P17/12 ,  H01T13/60

CPC分类号： F02P17/12 ,  G01R15/16 ,  F02P2017/006 ,  F02P2017/123

摘要： A spark plug voltage waveform detector probe for use in an internal combustion engine and which is mounted on a secondary circuit of an ignition circuit to form static capacity therebetween so as to detect a spark plug voltage waveform. The detector probe includes an insulator body and an electrode plate which is embedded in the insulator body and electrically connected to a lead wire. A pair of readily replaceable insulator plates are located under the insulator body each of the insulator plates having at least one groove, the at least one groove of each of the insulator plates opposing each other and cooperating to form an opening in which a spark plug cable is placed which is extended from the secondary circuit. Electromagnetic shield plates are provided to liquid-tightly sandwich the insulator body and the insulator plates so as to form a laminated detector probe structure. The electromagnetic shield plates are electrically connected to the internal combustion engine for grounding.

摘要翻译： 一种用于内燃机的火花塞电压波形检测器探针，其安装在点火电路的二次回路上以在其间形成静电容量，以便检测火花塞电压波形。 检测器探头包括绝缘体和电极板，该电极板嵌入绝缘体并电连接到引线上。 一对容易更换的绝缘体板位于绝缘体下方，每个绝缘体板具有至少一个凹槽，每个绝缘体板的至少一个凹槽彼此相对并配合形成一个开口，其中火花塞电缆 被放置为从次级电路延伸。 提供电磁屏蔽板以液体密封夹住绝缘体和绝缘板，以形成层叠检测器探针结构。 电磁屏蔽板电连接到内燃机用于接地。

公开(公告)号：US5443711A

公开(公告)日：1995-08-22

申请号：US997137

申请日：1992-12-22

申请人： Takao Kojima ,  Hiroyuki Ishiguro ,  Masaru Yamano ,  Noriaki Kondo ,  Masahiko Yamada ,  Toshiki Sawada

发明人： Takao Kojima ,  Hiroyuki Ishiguro ,  Masaru Yamano ,  Noriaki Kondo ,  Masahiko Yamada ,  Toshiki Sawada

IPC分类号： G01N27/409 ,  G01N27/406 ,  G01N27/407 ,  G01N27/41 ,  G01N27/417

CPC分类号： G01N27/4075 ,  G01N27/4077

摘要： Oxygen-sensor element comprises reference-gas-side and detection-gas-side electrodes on both surfaces of a solid-electrolyte body, and a porous protective layer on the surface of the detection-gas-side electrode, wherein at least a part (including at least a surface layer) of said porous protective layer is formed by a granular texture of a grain size of 0.1 to 0.5 .mu.m formed mainly of a nonstoichiometric compound of a transition metal oxide (TiO.sub.x), and a catalyst for having gas components of the gas to be measured react is carried in at least a part (including at least a surface layer) of the porous protective layer. Oxidation reaction of gas components is improved to prevent deterioration of the responsive property.

摘要翻译： 氧传感器元件包括在固体电解质体的两个表面上的参考气体侧和检测气体侧电极，以及在检测气体侧电极的表面上的多孔保护层，其中至少一部分 所述多孔保护层的至少包含表面层的至少一个表面层由主要由过渡金属氧化物（TiOx）的非化学计量化合物形成的粒径为0.1〜0.5μm的颗粒结构形成，以及具有气体成分的催化剂 被测量的气体在多孔保护层的至少一部分（包括至少表面层）中进行反应。 提高了气体成分的氧化反应，防止了反应性的劣化。

公开(公告)号：US06055844A

公开(公告)日：2000-05-02

申请号：US878775

申请日：1997-06-19

申请人： Noriaki Kondo ,  Hiroshi Inagaki ,  Shigeru Miyata

发明人： Noriaki Kondo ,  Hiroshi Inagaki ,  Shigeru Miyata

IPC分类号： F02M7/12 ,  F01N3/22 ,  F02D35/00 ,  F02D41/14 ,  F02D45/00 ,  G01M15/00

CPC分类号： F02D41/1474 ,  F02D35/003 ,  F01N3/22

摘要： An air/fuel ratio detection device and an air/fuel ratio control device, in which combustion of an engine is controlled with a simple design and toxic substances in exhaust gas discharged from the engine are reduced. Time A during which a lean signal is at a high level is measured. If the time A is shorter than the predetermined value, it is determined that the air/fuel ratio is richer than a target value, and time B during which an electromagnetic valve 21 is open is lengthened, increasing the quantity of supply air and making leaner the fuel mixed air, such that the target air/fuel ratio is approached. If the time A is longer than the predetermined value, it is determined that the air/fuel ratio is leaner and the time B is shortened.

摘要翻译： 空气/燃料比检测装置和空燃比控制装置，其中以简单的设计控制发动机的燃烧并且减少从发动机排出的废气中的有毒物质。 测量稀疏信号处于高电平的时间A. 如果时间A短于预定值，则确定空燃比比目标值更加丰富，并且电磁阀21打开的时间B被延长，从而增加供气量并使其变稀 燃料混合空气，使得目标空气/燃料比接近。 如果时间A长于预定值，则确定空燃比较稀，时间B缩短。

公开(公告)号：US5470762A

公开(公告)日：1995-11-28

申请号：US979261

申请日：1992-11-20

申请人： Mitsufumi Codama ,  Noriaki Kondo

发明人： Mitsufumi Codama ,  Noriaki Kondo

IPC分类号： H01L21/302 ,  H01L21/3065 ,  H01L21/336 ,  H01L27/12 ,  H01L29/78 ,  H01L29/786 ,  H01L21/00

CPC分类号： H01L27/12 ,  H01L29/66757 ,  Y10S438/978

摘要： A thin film transistor and a producing method therefor having a semiconductor layer which is formed in an islandish form and constitutes a channel forming region, a source region and a drain region, wherein the edge portion of the islandish semiconductor layer is so designed as to be gradually or monotonously thinned toward the edge thereof to prevent the gate insulating film covering the active layer from being thinned at the edge portion of the semiconductor layer. The gate insulating film is also smoothly formed to prevent an electric field concentration phenomenon at the edge portion.

摘要翻译： 一种薄膜晶体管及其制造方法，其具有形成为岛​​状并构成沟道形成区域，源极区域和漏极区域的半导体层，其中岛状半导体层的边缘部分被设计为 逐渐或单调地朝其边缘变薄，以防止覆盖有源层的栅极绝缘膜在半导体层的边缘部分变薄。 栅极绝缘膜也被平滑地形成，以防止边缘部分处的电场集中现象。

公开(公告)号：US4825683A

公开(公告)日：1989-05-02

申请号：US139295

申请日：1987-12-29

申请人： Akio Takami ,  Ken Minoha ,  Mineji Nasu ,  Toshifumi Sekiya ,  Toshitaka Matsuura ,  Akio Mizutani ,  Noriaki Kondo

发明人： Akio Takami ,  Ken Minoha ,  Mineji Nasu ,  Toshifumi Sekiya ,  Toshitaka Matsuura ,  Akio Mizutani ,  Noriaki Kondo

IPC分类号： G01N27/409 ,  G01N27/04 ,  G01N27/26 ,  G01N33/00 ,  G01D18/00

CPC分类号： G01N33/007 ,  G01N33/0006

摘要： An apparatus for evaluating an oxygen sensor includes a device for mixing a fuel and an oxygen-containing gas in an appropriate ratio to prepare a fuel mixture. A burner is connected to the mixing device for burning the fuel mixture to produce a gaseous combustion product. A tubular member extends from the burner for supplying the combustion product. A nozzle is connected to the tubular member for introducing a fuel and an oxygen-containing gas into the tubular member so that the combustion product is of a desired excess air ratio (air-fuel ratio) and a mounting device for the sensor to be evaluated is disposed on the tubular member, downstream of the nozzle.