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1. 发明授权

US06308572B1 Gas concentration sensor 失效
标题翻译：气体浓度传感器
公开(公告)号：US06308572B1
公开(公告)日：2001-10-30
申请号：US09504118
申请日：2000-02-15
申请人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Noboru Ishida , Takafumi Oshima
发明人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Noboru Ishida , Takafumi Oshima
IPC分类号： G01H500
CPC分类号： G01N29/222 , G01N29/024 , G01N2291/0212 , G01N2291/0217 , G01N2291/0258 , G01N2291/02809 , G01N2291/02836 , G01N2291/045
摘要： A gas concentration sensor comprises an ultrasonic element 33 opposite a reflection surface 34. A depression 34a is formed on an edge portion of a reflection surface 34 which is in contact with a side wall of a measurement chamber 32 such that a bottom surface of the depression 34a is substantially in parallel with the reflection surface 34. The distance between the ultrasonic element 33 and the edge portion of the reflection surface 34 becomes greater than the distance between the ultrasonic element 33 and a central portion of the reflection surface 34. As a result, an indirect wave, which impinges obliquely on the side wall of the measurement chamber 32 and propagates along the side wall, is reflected from the bottom surface of the depression 34a and propagates. Thus, the propagation distance of this indirect wave becomes greater as compared to the case where the reflection surface 34 is flat, so that the indirect wave is not combined with a direct wave in the vicinity of a modulation point of the direct wave. That is, since the modulation point of the direct wave can be detected accurately, a time interval between a modulation point of a transmitted wave and that of a received wave can be measured as the propagation time of an ultrasonic wave, thereby enabling accurate determination of gas concentration.
摘要翻译：气体浓度传感器包括与反射面34相对的超声波元件33.凹部34a形成在与测量室32的侧壁接触的反射面34的边缘部分上，使得凹部 34a与反射面34大致平行。超声波元件33与反射面34的边缘部之间的距离变得大于超声波元件33与反射面34的中央部之间的距离。其结果是，，从斜面34a的底面反射而沿着测量室32的侧壁倾斜并沿侧壁传播的间接波被传播。因此，与反射面34平坦的情况相比，该间接波的传播距离变大，因此间接波不与直接波的调制点附近的直接波组合。也就是说，由于可以精确地检测直接波的调制点，所以可以测量发射波的调制点和接收波的调制点之间的时间间隔作为超声波的传播时间，从而能够准确地确定气体浓度。

2. 发明授权

US06886412B2 Ultrasonic-wave propagation-time measuring method and gas concentration sensor 失效
标题翻译：超声波传播时间测量方法和气体浓度传感器
公开(公告)号：US06886412B2
公开(公告)日：2005-05-03
申请号：US10076423
申请日：2002-02-19
申请人： Keigo Banno , Hideki Ishikawa , Yoshikuni Sato , Noboru Ishida , Takafumi Oshima
发明人： Keigo Banno , Hideki Ishikawa , Yoshikuni Sato , Noboru Ishida , Takafumi Oshima
IPC分类号： G01N29/02 , F02D35/00 , F02D45/00 , G01H5/00 , G01N29/00 , G01N29/024 , G01N29/38 , G01N29/40 , G01F1/66
CPC分类号： G01N29/40 , G01N29/024 , G01N29/38 , G01N2291/0217 , G01N2291/02809
摘要： An ultrasonic-wave propagation-time measuring method and gas concentration sensor are disclosed in which a reception wave which has been transmitted and received by an ultrasonic element 5 is subjected to full-wave rectification in order to obtain a full-wave-rectified wave, which is then integrated by an integration circuit 37 to obtain an integral value. A peak value of the integral value is held by a peak-hold circuit 39. As to detection of gas concentration, a threshold-level calculation section 21e sets a reference value on the basis of the peak value, and a point in time when the amplitude of a reception wave having undergone full-wave rectification is judged by a comparator 43 to have reached the reference value is regarded as an arrival time. Subsequently, a gas concentration is determined on the basis of a period between the emission time and the arrival time.
摘要翻译：公开了一种超声波传播时间测量方法和气体浓度传感器，其中由超声波元件5发送和接收的接收波被进行全波整流，以获得全波整流波，然后将其由积分电路37积分以获得积分值。积分值的峰值由峰值保持电路39保持。关于气体浓度的检测，阈值电平计算部21e基于峰值设定基准值，并且通过比较器判定经过全波整流的接收波的振幅的时间点 43已达到参考值被视为到达时间。随后，基于发射时间和到达时间之间的周期来确定气体浓度。

3. 发明授权

US06568281B1 Ultrasonic-wave propagation-time measuring method, gas-pressure measuring method, gas-flow rate measuring method, and gas sensor 失效
标题翻译：超声波传播时间测量方法，气压测量方法，气体流量测量方法和气体传感器
公开(公告)号：US06568281B1
公开(公告)日：2003-05-27
申请号：US09635897
申请日：2000-08-11
申请人： Yoshikuni Sato , Keigo Banno , Hideki Ishikawa , Noboru Ishida , Takafumi Oshima
发明人： Yoshikuni Sato , Keigo Banno , Hideki Ishikawa , Noboru Ishida , Takafumi Oshima
IPC分类号： G01F166
CPC分类号： G01F1/668 , G01H5/00 , G01L11/06 , G01N29/024 , G01N29/38 , G01N29/4454 , G01N29/48 , G01N2291/0212 , G01N2291/0217 , G01N2291/02809 , G01N2291/02836 , G01N2291/02872 , G01N2291/101 , G01N2291/102
摘要： An ultrasonic-wave propagation time measuring method which enables determination of accurate propagation time, a gas-pressure measuring method, a gas-flow-rate measuring method, and a gas sensor. A reception wave which has been transmitted and received by an ultrasonic element 5 is shaped and integrated by an integration circuit 67 to obtain an integral value. A peak value of the integral value is held by a peak-hold circuit 39. As to detection of gas concentration, a resistance-voltage-division circuit 41 sets a reference value on the basis of the peak value, and a point in time when the integral value of the reception wave is judged by a comparator 43 to have reached the reference value is regarded as an arrival time. Subsequently, a gas concentration is detected on the basis of a period between the emission time and the arrival time. As to detection of gas pressure and flow rate, the gas pressure is detected on the basis of the peak value, and further, the gas flow rate is calculated on the basis of the gas pressure.
摘要翻译：能够确定准确的传播时间的超声波传播时间测量方法，气体压力测量方法，气体流量测量方法和气体传感器。由超声波元件5发送和接收的接收波被积分电路67整形并积分以获得积分值。积分值的峰值由峰值保持电路39保持。关于气体浓度的检测，电阻分压电路41基于峰值设定基准值，接收波的积分值由比较器43判定为已经达到基准值被认为是到达时间。随后，基于发射时间和到达时间之间的周期来检测气体浓度。关于气体压力和流量的检测，基于峰值检测气体压力，此外，基于气体压力计算气体流量。

4. 发明授权

US07080543B2 Sensor and method for manufacturing the same 失效
标题翻译：传感器及其制造方法
公开(公告)号：US07080543B2
公开(公告)日：2006-07-25
申请号：US10409587
申请日：2003-04-09
申请人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Masashi Sakamoto , Noboru Ishida , Takafumi Oshima
发明人： Hideki Ishikawa , Yoshikuni Sato , Keigo Banno , Masashi Sakamoto , Noboru Ishida , Takafumi Oshima
IPC分类号： G01N29/02
CPC分类号： G01N29/223 , G01N2291/021 , G01N2291/02809 , G01N2291/02818 , G01N2291/02881
摘要： A detecting-element assembly (40) is configured such that a piezoelectric element (51) is housed in a casing body portion (43) of a casing (42), and is attached to a housing portion (22) of a flow path formation member (20) via a flange portion (41). Therefore, the path between the piezoelectric element (51) and the position of attachment of the detecting-element assembly (40) is elongated, whereby ultrasonic waves which leak into the interior of the detecting-element assembly (40) from the piezoelectric element (51) become unlikely to reflectively return from a joint. Thus, the influence of, for example, noise stemming from reflected waves is reduced, thereby enhancing the accuracy of detection. An average clearance of 1 millimeter or more is provided along the outer circumferential surface of the casing body portion (43) of the detecting-element assembly (40), whereby a problem of collected foreign matter is unlikely to occur.
摘要翻译：检测元件组件（40）构造成使得压电元件（51）容纳在壳体（42）的壳体主体部分（43）中，并且附接到流路形成的壳体部分（22）构件（20）经由凸缘部分（41）。因此，压电元件（51）与检测元件组件（40）的安装位置之间的路径被拉长，从而从压电元件（...）泄漏到检测元件组件（40）的内部的超声波 51）变得不可能从联合反射回来。因此，降低了例如由反射波产生的噪声的影响，从而提高了检测的准确性。沿着检测元件组件（40）的壳体主体部（43）的外周面设置有1毫米以上的平均间隙，由此不可能发生收集的异物问题。

5. 发明授权

US07082810B2 Gas sensor 失效
标题翻译：气体传感器
公开(公告)号：US07082810B2
公开(公告)日：2006-08-01
申请号：US10379710
申请日：2003-03-06
申请人： Masashi Sakamoto , Yoshikuni Sato , Keigo Banno , Katsuya Otake , Takeshi Morita , Hideki Ishikawa , Noboru Ishida
发明人： Masashi Sakamoto , Yoshikuni Sato , Keigo Banno , Katsuya Otake , Takeshi Morita , Hideki Ishikawa , Noboru Ishida
IPC分类号： G01N29/02
CPC分类号： G01N29/02 , G01N29/032 , G01N29/222 , G01N2291/0217 , G01N2291/02809
摘要： A gas sensor (10) including a measurement chamber (28) into which a gas GS is flown and a detection element main body (40) facing the measurement chamber (28). The detection element main body (40) includes an element case 42, and a protective film (48) is adhered to a bottom surface thereof. An acoustic matching plate (50) and a piezoelectric element (51) of a substantially columnar shape and a tube body (52) provided in a position surrounding the acoustic matching plate 50 and the piezoelectric element 51 are housed in the element case (42). A filler is then introduced into the element case (42), whereby the acoustic matching plate (50), the piezoelectric element (51), and the tube body (52) are sealed by a filled layer (99).
摘要翻译：一种气体传感器（10），包括气体GS流入的测量室（28）和面向测量室（28）的检测元件主体（40）。检测元件主体（40）包括元件壳体42，并且保护膜（48）粘附到其底面。设置在围绕声匹配板50和压电元件51的位置的声匹配板（50）和基本上柱状的压电元件（51）和管体（52）容纳在元件壳体（42）中，。然后将填料引入到元件壳体（42）中，由此，声匹配板（50），压电元件（51）和管体（52）被填充层（99）密封。

6. 发明授权

US06892566B2 Gas concentration sensor 失效
标题翻译：气体浓度传感器
公开(公告)号：US06892566B2
公开(公告)日：2005-05-17
申请号：US10393496
申请日：2003-03-21
申请人： Masashi Sakamoto , Yoshikuni Sato , Hideki Ishikawa , Keigo Banno , Noboru Ishida
发明人： Masashi Sakamoto , Yoshikuni Sato , Hideki Ishikawa , Keigo Banno , Noboru Ishida
IPC分类号： G01N29/024 , G01N29/22 , G01N29/44 , G01N29/02 , G01H5/00
CPC分类号： G01N29/222 , G01N29/024 , G01N2291/011 , G01N2291/015 , G01N2291/0212 , G01N2291/0217 , G01N2291/02809 , G01N2291/045 , G01N2291/101
摘要： A gas concentration sensor includes a measurement chamber for measuring a concentration of a specific gas component in a gas under measurement; an inflow path for allowing inflow of the gas under measurement thereinto and an outflow path for allowing outflow of the gas under measurement therefrom; a reflection wall for reflecting an acoustic wave; and an acoustic wave transmitting-receiving element having a transmitting-receiving surface adapted to transmit an acoustic wave toward the reflection wall and receive an acoustic wave reflected from the reflection wall. The concentration of the specific gas in the gas under measurement is detected on the basis of a propagation time between transmission of the acoustic wave and reception of the reflected acoustic wave. When a predetermined member having the sensor attached thereto is placed in a horizontal plane, the transmitting-receiving surface faces downward. A recess is formed in a peripheral portion of the reflection wall. The recess is receded toward a back surface of the reflection wall, namely, in a direction away from the transmitting-receiving surface.
摘要翻译：气体浓度传感器包括用于测量被测气体中特定气体成分浓度的测量室; 用于允许在其中测量气体的流入的流入路径和用于允许从其测量的气体流出的流出路径; 用于反射声波的反射壁; 以及具有发射接收表面的声波发射接收元件，所述发射接收表面适于向反射壁传输声波并接收从反射壁反射的声波。基于声波的发送和反射声波的接收之间的传播时间来检测被测气体中的比气体的浓度。当安装有传感器的预定构件放置在水平面中时，发送接收表面向下。在反射壁的周边部分形成有凹部。凹部朝向反射壁的后表面，即远离发射接收表面的方向退回。

7. 发明授权

US07802463B2 Sensor control device and air fuel ratio detecting apparatus 有权
标题翻译：传感器控制装置和空燃比检测装置
公开(公告)号：US07802463B2
公开(公告)日：2010-09-28
申请号：US11870867
申请日：2007-10-11
申请人： Yoshinori Inoue , Hiroshi Inagaki , Norikazu Ieda , Keigo Banno
发明人： Yoshinori Inoue , Hiroshi Inagaki , Norikazu Ieda , Keigo Banno
IPC分类号： G01N27/407 , F02D41/02
CPC分类号： F02D41/1454 , F02D41/1456 , F02D41/28
摘要： A gas sensor apparatus 3 in an air-fuel ratio detection system 1 includes a gas sensor element 4 which outputs a detection signal corresponding to air-fuel ratio, and a gas sensor control circuit 2 which includes a detection section 20 for outputting a first output signal VIP1, a second output signal VIP2, and a third output signal VIP3 in accordance with the detection signal. This detection section 20 outputs the first output signal VIP1 which changes in accordance with the air-fuel ratio at least within a wide first air-fuel ratio zone, the second output signal VIP2 which changes in accordance with the air-fuel ratio within a narrow zone in the vicinity of the stoichiometric ratio, and the third output signal VIP3 which changes in accordance with the air-fuel ratio within a narrow zone in the lean region.
摘要翻译：空燃比检测系统1中的气体传感器装置3包括输出对应于空燃比的检测信号的气体传感器元件4和气体传感器控制电路2，该气体传感器控制电路2包括：检测部20，其输出第一输出信号VIP1，第二输出信号VIP2，以及根据检测信号的第三输出信号VIP3。该检测部20至少在宽的第一空燃比区域内输出根据空燃比而变化的第一输出信号VIP1，第二输出信号VIP2根据空燃比而变化，在第三输出信号VIP3中，第三输出信号VIP3根据稀薄区域内的窄带内的空燃比而变化。

8. 发明授权

US07142976B2 Abnormality diagnosis method and apparatus for gas concentration measuring device 有权
标题翻译：气体浓度测量装置异常诊断方法及装置
公开(公告)号：US07142976B2
公开(公告)日：2006-11-28
申请号：US11167163
申请日：2005-06-28
申请人： Yoshinori Inoue , Norikazu Ieda , Masahiro Tanaka , Reina Kito , Keigo Banno , Tatsuki Hirabayashi
发明人： Yoshinori Inoue , Norikazu Ieda , Masahiro Tanaka , Reina Kito , Keigo Banno , Tatsuki Hirabayashi
IPC分类号： G06F19/00 , F02D41/14 , G01N27/26
CPC分类号： G01N27/4175
摘要： An abnormality diagnosis method for a gas concentration measuring device, includes electrically shutting off measurement means from an oxygen concentration detecting cell and an oxygen pump cell of a gas sensor when a voltage at one of electrical connection points through which the measurement means is electrically connected to the oxygen concentration detecting cell and the oxygen pump cell becomes equal to a predetermined abnormal voltage value, and thereafter, electrically connecting the measurement means to the oxygen concentration detecting cell and the oxygen pump cell of the gas sensor to perform an abnormality diagnosis of the gas sensor. An abnormality diagnosis apparatus for a gas concentration measuring device is also provided.
摘要翻译：气体浓度测量装置的异常诊断方法包括当测量装置电连接到电气连接点的电连接点之一处的电压时，从氧浓度检测单元和气体传感器的氧气泵单元电气关闭测量装置，氧浓度检测单元和氧泵单元变得等于预定的异常电压值，然后将测量装置与气体传感器的氧浓度检测单元和氧气泵单元电气连接，以进行气体的异常诊断传感器。还提供了一种用于气体浓度测量装置的异常诊断装置。

9. 发明申请

US20050288847A1 Abnormality diagnosis method and apparatus for gas concentration measuring device 有权
标题翻译：气体浓度测量装置异常诊断方法及装置
公开(公告)号：US20050288847A1
公开(公告)日：2005-12-29
申请号：US11167163
申请日：2005-06-28
申请人： Yoshinori Inoue , Norikazu Ieda , Masahiro Tanaka , Reina Kito , Keigo Banno , Tatsuki Hirabayashi
发明人： Yoshinori Inoue , Norikazu Ieda , Masahiro Tanaka , Reina Kito , Keigo Banno , Tatsuki Hirabayashi
IPC分类号： F02D41/00 , G01N27/417 , G06F19/00
CPC分类号： G01N27/4175
摘要： An abnormality diagnosis method for a gas concentration measuring device, includes electrically shutting off measurement means from an oxygen concentration detecting cell and an oxygen pump cell of a gas sensor when a voltage at one of electrical connection points through which the measurement means is electrically connected to the oxygen concentration detecting cell and the oxygen pump cell becomes equal to a predetermined abnormal voltage value, and thereafter, electrically connecting the measurement means to the oxygen concentration detecting cell and the oxygen pump cell of the gas sensor to perform an abnormality diagnosis of the gas sensor. An abnormality diagnosis apparatus for a gas concentration measuring device is also provided.
摘要翻译：气体浓度测量装置的异常诊断方法包括当测量装置电连接到电气连接点的电连接点之一处的电压时，从氧浓度检测单元和气体传感器的氧气泵单元电气关闭测量装置氧浓度检测单元和氧泵单元变得等于预定的异常电压值，然后将测量装置与气体传感器的氧浓度检测单元和氧气泵单元电气连接，以进行气体的异常诊断传感器。还提供了一种用于气体浓度测量装置的异常诊断装置。

10. 发明申请

US20090095052A1 SENSOR CONTROL DEVICE AND AIR FUEL RATIO DETECTING APPARATUS 有权
标题翻译：传感器控制装置和空气燃料比检测装置
公开(公告)号：US20090095052A1
公开(公告)日：2009-04-16
申请号：US11870867
申请日：2007-10-11
申请人： Yoshinori INOUE , Hiroshi Inagaki , Norikazu Ieda , Keigo Banno
发明人： Yoshinori INOUE , Hiroshi Inagaki , Norikazu Ieda , Keigo Banno
IPC分类号： G01M15/10
CPC分类号： F02D41/1454 , F02D41/1456 , F02D41/28
摘要： A gas sensor apparatus 3 in an air-fuel ratio detection system 1 includes a gas sensor element 4 which outputs a detection signal corresponding to air-fuel ratio, and a gas sensor control circuit 2 which includes a detection section 20 for outputting a first output signal VIP1, a second output signal VIP2, and a third output signal VIP3 in accordance with the detection signal. This detection section 20 outputs the first output signal VIP1 which changes in accordance with the air-fuel ratio at least within a wide first air-fuel ratio zone, the second output signal VIP2 which changes in accordance with the air-fuel ratio within a narrow zone in the vicinity of the stoichiometric ratio, and the third output signal VIP3 which changes in accordance with the air-fuel ratio within a narrow zone in the lean region.
摘要翻译：空燃比检测系统1中的气体传感器装置3包括输出对应于空燃比的检测信号的气体传感器元件4和气体传感器控制电路2，该气体传感器控制电路2包括：检测部20，其输出第一输出信号VIP1，第二输出信号VIP2，以及根据检测信号的第三输出信号VIP3。该检测部20至少在宽的第一空燃比区域内输出根据空燃比而变化的第一输出信号VIP1，第二输出信号VIP2根据空燃比而变化，在第三输出信号VIP3中，第三输出信号VIP3根据稀薄区域内的窄带内的空燃比而变化。

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