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1. 发明授权

US4932238A Control system and method for controlling plant having high order lag 失效
标题翻译：控制系统和控制方法，具有高阶滞后
公开(公告)号：US4932238A
公开(公告)日：1990-06-12
申请号：US247344
申请日：1988-09-21
申请人： Hideji Yoshida , Nobuhiro Hayakawa , Akio Mizutani , Tessho Yamada
发明人： Hideji Yoshida , Nobuhiro Hayakawa , Akio Mizutani , Tessho Yamada
IPC分类号： G05B6/02 , F02D41/14 , G01N27/00 , G01N27/04 , G01N27/12 , G01N27/26 , G01N27/419 , G05B5/01
CPC分类号： F02D41/1454 , G05B5/01 , F02D2041/281
摘要： A control system has a controlled element, such as an element for sensing an air/fuel ratio of an internal combustion engine, having a high order lag, a controller element connected with the controlled element to form a closed path, and a third element connected with the controlled element and controller element for modifying an output signal of the controlled element in accordance with an output signal of the controller element so that a phase angle in a frequency response of a loop transfer function of the controlled and controller elements does not reach -180.degree..
摘要翻译：控制系统具有诸如用于感测具有高阶滞后的内燃机的空气/燃料比的元件的受控元件，与受控元件连接以形成闭合路径的控制器元件和连接到第三元件的第三元件控制元件和控制器元件用于根据控制器元件的输出信号修改受控元件的输出信号，使得受控元件和控制器元件的环路传递函数的频率响应中的相位角未达到 - 180度。

2. 发明授权

US5288389A Oxygen sensor with higher resistance to repeated thermal-shocks and shorter warm-up time 失效
标题翻译：氧传感器具有较高的抗重复热冲击和较短的预热时间
公开(公告)号：US5288389A
公开(公告)日：1994-02-22
申请号：US32187
申请日：1993-03-15
申请人： Tessho Yamada , Akio Mizutani , Nobuhiro Hayakawa
发明人： Tessho Yamada , Akio Mizutani , Nobuhiro Hayakawa
IPC分类号： F02B75/02 , G01N27/407 , G01N27/417 , G01N27/419
CPC分类号： G01N27/4073 , G01N27/4071 , G01N27/417 , F02B2075/027
摘要： An oxygen sensor including, at least, a) an oxygen pump element having a solid electrolyte plate and two porous electrodes, one on each surface of the solid electrolyte plate, b) a gas diffusion chamber facing one of the porous electrodes, and c) a gas diffusion path connecting the gas diffusion chamber and the ambience of the oxygen sensor, is defined its thickness between 0.7 to 1.25 mm, and its width between 2.8 to 4.0 mm. The restricted size renders higher resistance against repeated thermal shocks, and shorter warming-up time, which leads to greater accuracy and higher responsiveness in the oxygen content measurement.
摘要翻译：一种氧传感器，至少包括a）具有固体电解质板和两个多孔电极的氧气泵元件，在所述固体电解质板的每个表面上一个，b）朝向所述多孔电极之一的气体扩散室，以及c）连接气体扩散室的气体扩散路径和氧传感器的气氛被定义为其在0.7至1.25mm之间的厚度，其宽度在2.8至4.0mm之间。受限制的尺寸对反复的热冲击具有更高的阻力，并且更短的预热时间，这导致更高的精度和更高的氧含量测量的响应性。

3. 发明授权

US06344134B1 Method for measuring NOx concentration and NOx concentration sensor 有权
标题翻译： NOx浓度和NOx浓度传感器的测量方法
公开(公告)号：US06344134B1
公开(公告)日：2002-02-05
申请号：US09232001
申请日：1999-01-15
申请人： Tessho Yamada , Noboru Ishida , Toshitaka Matsuura , Yoshiro Noda , Nobuhiro Hayakawa , Norihiko Nadanami , Satoshi Sugaya , Takaki Otsuka , Masashi Ando , Takafumi Oshima
发明人： Tessho Yamada , Noboru Ishida , Toshitaka Matsuura , Yoshiro Noda , Nobuhiro Hayakawa , Norihiko Nadanami , Satoshi Sugaya , Takaki Otsuka , Masashi Ando , Takafumi Oshima
IPC分类号： G01N27407
CPC分类号： G01N27/417
摘要： An apparatus and method using a two-serial space sensor (having first and second internal spaces 2,3) for accurately measuring NOx concentration in gas, e.g., exhausted from an internal combustion engine. Both NOx (nitrogen oxide) and oxygen are forced to be partially dissociated in the first space 2 to an oxygen concentration level of 2×10−7 to 2×10−10 atm by pumping out oxygen from the first space 2. The NOx concentration is determined based on the second current measured in the second space 4 and based on the NO dissociation percentage in the first chamber which is 0.5-50%, or preferably 2-20%. The NOx measurement accuracy is further improved when the above oxygen concentration level is maintained from 2×10−8 to 2×10−9 and the temperature drift of the sensor is maintained within ±5° C. under a sensor temperature range of 700-900° C.
摘要翻译：一种使用两串联空间传感器（具有第一和第二内部空间2,3）的装置和方法，用于精确测量例如从内燃机排出的气体中的NOx浓度。通过从第一空间2中抽出氧，迫使NOx（氮氧化物）和氧在第一空间2中部分地离解为2x10-7至2×10-10大气压的氧浓度水平。基于在第二空间4中测量的第二电流，并且基于第一室中的NO解离百分比为0.5-50％，或优选2-20％。在700-900℃的传感器温度范围内，当上述氧气浓度水平保持在2×10 -8至2×10 -9，并且传感器的温度漂移保持在±5℃以内时，NOx测量精度进一步提高。

4. 发明授权

US5174885A Air fuel ratio sensor 失效
标题翻译：空气燃料比传感器
公开(公告)号：US5174885A
公开(公告)日：1992-12-29
申请号：US596438
申请日：1990-10-12
申请人： Nobuhiro Hayakawa , Tessho Yamada
发明人： Nobuhiro Hayakawa , Tessho Yamada
IPC分类号： G01N27/26 , G01N27/406 , G01N27/417 , G01N27/419
CPC分类号： G01N27/417
摘要： The invention provides an air/fuel ratio sensor, including an electrochemical sensor cell and an electrochemical pump cell, which shows both a quick response and a stable limiting current. This is realized by limiting the ratio of the area a of a region A to the area b of a region B on the inner electrode of the electrochemical sensor within a specified range, 0

5. 发明授权

US5433830A Method of activating zirconia oxygen sensor 失效
标题翻译：激活氧化锆氧传感器的方法
公开(公告)号：US5433830A
公开(公告)日：1995-07-18
申请号：US186650
申请日：1994-01-26
申请人： Takeshi Kawai , Nobuhiro Hayakawa , Tessho Yamada
发明人： Takeshi Kawai , Nobuhiro Hayakawa , Tessho Yamada
IPC分类号： G01N27/419 , G01N27/26
CPC分类号： G01N27/419
摘要： Activation treatment for a zirconia oxygen sensor is performed by applying alternately a treating voltage, which can make an oxygen partial pressure at the electrode-zirconia interface of a sensor equal to or higher than a critical oxygen partial pressure value (10.sup.-34 atm) not to cause blackening, between a pair of electrodes of the sensor at temperatures of 500.degree. to 800.degree. C. As a result, the treatment current flowing through the sensor can always be held below the critical level, whereby the sensor can be activated without causing blackening and other physical structural changes to occur in the zirconia sensing element. If the sensor is to be used in an A/F ratio control or the like on an internal combustion engine, it can be rendered active at all times by the activation treatment during or before or after the control.
摘要翻译：氧化锆氧传感器的激活处理通过交替施加处理电压来进行，该处理电压可以使传感器的电极 - 氧化锆界面处的氧分压等于或高于临界氧分压值（10-34atm）而不是在500〜800℃的温度下在传感器的一对电极之间引起黑化。结果，流过传感器的处理电流总是能够保持在临界水平以下，从而可以激活传感器而不引起氧化锆感应元件中发生黑化和其他物理结构变化。如果将传感器用于内燃机上的A / F比控制等，则可以通过在控制期间或控制之后或之后的激活处理始终使其变为活动状态。

6. 发明授权

US5357750A Method for detecting deterioration of catalyst and measuring conversion efficiency thereof with an air/fuel ratio sensor 失效
标题翻译：用于检测催化剂劣化并用空/燃比传感器测量其转化效率的方法
公开(公告)号：US5357750A
公开(公告)日：1994-10-25
申请号：US1225
申请日：1993-01-06
申请人： Yasuo Ito , Nobuhiro Hayakawa , Tessho Yamada
发明人： Yasuo Ito , Nobuhiro Hayakawa , Tessho Yamada
IPC分类号： F01N11/00 , F01N3/20
CPC分类号： F01N11/007 , F01N2550/02 , Y02T10/22 , Y02T10/47
摘要： The invention provides a method for accurately and precisely detecting deterioration of a catalyst and measuring a conversion efficiency of a catalyst for HC/CO/NOx by using an oxygen sensor and an air/fuel ratio sensor disposed on the upstream and downstream sides of the catalyst, respectively. The catalyst is determined to be deteriorating when an output amplitude of the air/fuel ratio sensor becomes greater than a predetermined value. The conversion efficiency of the catalyst is determined based on a predetermined relationship between the output amplitude and the mean converted rate of HC/CO/NOx.
摘要翻译：本发明提供一种准确，准确地检测催化剂劣化的方法，并且通过使用设置在催化剂的上游侧和下游侧的氧传感器和空气/燃料比传感器来测量HC / CO / NO x催化剂的转化效率，分别。当空气/燃料比传感器的输出振幅变得大于预定值时，确定催化剂变质。催化剂的转化效率基于HC / CO / NOx的输出振幅和平均转化率之间的预定关系来确定。

7. 发明授权

US6010366A Mold-type electronic part-containing connector 失效
标题翻译：模具型电子零件连接器
公开(公告)号：US6010366A
公开(公告)日：2000-01-04
申请号：US14619
申请日：1998-01-28
申请人： Fumiyoshi Tanigawa , Tessho Yamada , Yoshihide Kami
发明人： Fumiyoshi Tanigawa , Tessho Yamada , Yoshihide Kami
IPC分类号： H01R13/66 , H01R43/24
CPC分类号： H01R13/6608 , H01R43/24 , Y10S439/907
摘要： A branch metal terminal has a branch lead terminal portion with a branch wire connected to this terminal portion through a branch female metal terminal. The branch wire is connected to a female-side wire connected to a mold-type electronic part.
摘要翻译：分支金属端子具有分支引线端子部分，其分支线通过分支母金属端子连接到该端子部分。分支线连接到连接到模具型电子部件的阴侧线。

8. 发明授权

US5976350A Method of and apparatus for detecting an activated condition of a wide range air-fuel ratio sensor 失效
标题翻译：用于检测大范围空燃比传感器的激活状态的方法和装置
公开(公告)号：US5976350A
公开(公告)日：1999-11-02
申请号：US920722
申请日：1997-08-29
申请人： Tessho Yamada , Takeshi Kawai , Yuji Oi , Shigeki Mori , Satoshi Teramoto , Toshiya Matsuoka
发明人： Tessho Yamada , Takeshi Kawai , Yuji Oi , Shigeki Mori , Satoshi Teramoto , Toshiya Matsuoka
IPC分类号： G01N27/419 , F02D41/14 , G01N27/406 , G01N27/407
CPC分类号： F02D41/1494 , G01N27/4065
摘要： A method of detecting an activated condition of a wide range air-fuel ratio sensor is provided. With this method, application of a current to a heater is started idiately after an engine is started (S00). Then, a current Icp for pumping is passed through an electromotive force cell (S10). A lapse of a predetermined time Tin is waited for (S18). After a lapse of time Tin, a voltage Vs across both electrodes of the electromotive force cell is detected (S20) and labeled as Vs0 (S22). Then, application of Icp is suspended (S30) and a routine is held on standby until a time of 25 ms elapses (S35). At the point of time when the time of 25 ms has elapsed, the voltage across the electrodes on the opposite sides of the electromotive force cell is detected (S40) and labeled as Vs1 (S45). A resistance value Rs1 is calculated from Vs0, Vs1 and Icp (S50). The resistance value Rs1 is compared with a value Rss which has been prepared previously (S55) and it is judged, when Rs1 is smaller than Rss, that the electromotive force cell has been put into an activated condition. An apparatus for detecting an activated condition of a wide range air-fuel ratio sensor is also provided.
摘要翻译：提供一种检测大范围空燃比传感器的激活状态的方法。利用这种方法，在发动机启动之后，将电流施加到加热器（S00）。然后，使电流Icp通过电动势电池（S10）。等待经过预定时间锡（S18）。经过一段时间后，检测到电动势单元的两个电极之间的电压Vs（S20）并标记为Vs0（S22）。然后，停止应用Icp（S30），并且程序保持待机直到25ms的时间过去（S35）。在经过25ms的时间的时刻，检测到电动势单元的相对侧的电极两端的电压（S40），标记为Vs1（S45）。从Vs0，Vs1和Icp计算电阻值Rs1（S50）。将电阻值Rs1与先前准备的值Rss进行比较（S55），当Rs1小于Rss时，判断为电动势单元已经处于激活状态。还提供了用于检测大范围空燃比传感器的激活状态的装置。

9. 发明授权

US4808269A Method for controlling an oxygen concentration sensing device 失效
标题翻译：氧浓度检测装置的控制方法
公开(公告)号：US4808269A
公开(公告)日：1989-02-28
申请号：US142298
申请日：1988-01-04
申请人： Tomohiko Kawanabe , Masahiko Asakura , Noritaka Kushida , Hiroshi Hasebe , Tessho Yamada
发明人： Tomohiko Kawanabe , Masahiko Asakura , Noritaka Kushida , Hiroshi Hasebe , Tessho Yamada
IPC分类号： G01N27/419 , G01N27/27 , G01N27/406 , G01N27/409 , G01N27/46
CPC分类号： G01N27/4065
摘要： A method of controlling an oxygen concentration sensor of the type having oxygen pump and sensor cell elements spaced from each other to form a gap or a restricted region both of which are to be placed in some gases containing an oxygen component, and a heater element for heating said oxygen pump and sensor cell elements under energization of a heater current supplied thereto.A pump current is supplied to the oxygen pump element as long as the heater current is supplied to the heater element. However, the initiation of the supply of the pump current is somewhat delayed at the initial stage of the supply of the heater current in order to avoid incorrect operation due to the unstable cool state of the sensor, and to present possible flow of excessive pump current through the pump element which would cause deterioration of the oxygen pump element.
摘要翻译：一种控制氧浓度传感器的方法，所述氧浓度传感器具有彼此间隔开的氧气泵和传感器单元元件，以形成间隙或受限制的区域，两者都被放置在含有氧组分的一些气体中，以及用于在供给其的加热器电流的通电下加热所述氧气泵和传感器电池元件。只要将加热器电流提供给加热器元件，泵电流就被供应给氧气泵元件。然而，在供电加热器电流的初始阶段，启动泵电流的供应有些延迟，以避免由于传感器的不稳定的冷却状态引起的不正确的操作，并且提供过大的泵电流的可能的流量通过泵元件，这将导致氧气泵元件的劣化。

10. 发明授权

US6099717A Method of and apparatus for detecting a deteriorated condition of a wide range air-fuel ratio sensor 失效
标题翻译：用于检测大范围空燃比传感器劣化状况的方法和装置
公开(公告)号：US6099717A
公开(公告)日：2000-08-08
申请号：US965420
申请日：1997-11-06
申请人： Tessho Yamada , Takeshi Kawai , Yuji Oi , Shigeki Mori , Satoshi Teramoto , Toshiya Matsuoka
发明人： Tessho Yamada , Takeshi Kawai , Yuji Oi , Shigeki Mori , Satoshi Teramoto , Toshiya Matsuoka
IPC分类号： F02D41/14 , G01N27/407
CPC分类号： F02D41/1495 , F02D41/1474 , F02D41/1476
摘要： A method of detecting a deteriorated condition of a wide range air-fuel ratio sensor is provided. Firstly, a current is applied to an electromotive force cell to detect a voltage Vs0 across electrodes on opposite side surfaces of the cell. Application of the current is suspended, and a voltage drop Vsd1 across the electrodes is detected after lapse of a time ranging from 10 .mu.s to 1 ms after the application of the current is suspended. Based on the voltage drop Vsd1 is detected a first resistance value Rvs1 equated to the temperature of the electromotive force cell. Further, after lapse of a time ranging from 10 ms to 50 ms after the application of the current to the electromotive force cell is suspended, a voltage drop Vsd2 across the electrodes of the electromotive force cell is detected. Based on the voltage drop Vsd2 is detected a second resistance value Rvs2 equated to an internal resistance of the electromotive force cell including a resistance component resulting from deterioration. By comparison of the resistance values Rvs1 and Rvs2, the deteriorated condition of the wide range air-fuel ratio is detected. An apparatus for carrying out such a method is also provided.
摘要翻译：提供了一种检测宽范围空燃比传感器劣化状况的方法。首先，将电流施加到电动势单元以检测电池的相对侧表面上的电极之间的电压Vs0。电流的施加被暂停，在暂停施加电流之后经过10μs至1ms的时间之后，检测电极两端的电压降Vsd1。基于电压降Vsd1，检测到等于电动势单元的温度的第一电阻值Rvs1。此外，在将电流施加到电动势电池之后经过了10ms至50ms的时间之后，检测到电动势单元的电极两端的电压降Vsd2。基于电压降Vsd2，检测到等于包括由劣化导致的电阻分量的电动势单元的内部电阻的第二电阻值Rvs2。通过比较电阻值Rvs1和Rvs2，检测宽范围空燃比的恶化条件。还提供了一种用于执行这种方法的设备。

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