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1. 发明专利

JP2010261782A Soot detector and soot detection method 审中-公开
标题翻译： SOOT DETECTOR和SOOT检测方法
公开(公告)号：JP2010261782A
公开(公告)日：2010-11-18
申请号：JP2009112137
申请日：2009-05-01
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KONDO TOMONORI , NADANAMI NORIHIKO , MATSUTANI WATARU , NISHIYAMA HIROYUKI , KOJIMA TAKIO
IPC分类号： G01N27/41 , G01N27/02 , G01N27/04 , G01N27/22
CPC分类号： G01N15/0656 , G01N15/0606 , G01N2015/0046
摘要： PROBLEM TO BE SOLVED: To provide a soot detector and soot detection method having a high measurement accuracy and a small time lag in measuring the amount of soot or concentration of soot. SOLUTION: In a step 120, a predetermined pumping voltage is applied between both pumping electrodes 19 and 21, and a predetermined detection voltage is applied between both detection electrodes 25 and 27 (by a second battery 47). In the step 130, pumping current detected by a first ammeter 43 is acquired, and the integration amount (current amount) of the current value from ON of a first switch 45 is calculated. In a step 140, detection current detected by a second ammeter 51 is acquired, and it is determined whether a direct-current resistance between both detection electrodes 25 and 27 becomes a threshold or higher. In other words, the direct-current resistance is determined based on the detection voltage and detection current, and it is determined whether the direct-current resistance is not lower than a threshold showing the resistance value (insulation resistance) indicating complete combustion of soot. In a step 150, soot deposition amount is calculated based on the current amount (integrated value of current value). COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供在测量烟灰量或烟灰浓度方面具有高测量精度和小时滞的烟灰探测器和烟灰检测方法。解决方案：在步骤120中，在两个泵浦电极19和21之间施加预定的泵浦电压，并且在两个检测电极25和27（由第二电池47）之间施加预定的检测电压。在步骤130中，获取由第一电流计43检测出的泵浦电流，并且计算从第一开关45的ON开始的当前值的积分量（电流量）。在步骤140中，获取由第二电流计51检测出的检测电流，并且确定两个检测电极25和27之间的直流电阻是否变为阈值以上。换句话说，基于检测电压和检测电流来确定直流电阻，并且确定直流电阻是否不低于表示烟灰完全燃烧的电阻值（绝缘电阻）的阈值。在步骤150中，基于当前量（电流值的积分值）计算烟灰沉积量。版权所有（C）2011，JPO＆INPIT

2. 发明专利

JP2010229957A Exhaust system for internal combustion engine and particulate matter measuring sensor used for the same 审中-公开
标题翻译：用于内燃机的排气系统和用于其的颗粒物测量传感器
公开(公告)号：JP2010229957A
公开(公告)日：2010-10-14
申请号：JP2009080888
申请日：2009-03-30
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NADANAMI NORIHIKO , NISHIYAMA HIROYUKI , KONDO TOMONORI , MATSUTANI WATARU
IPC分类号： F01N3/00 , F01N3/02 , G01N15/06
摘要： PROBLEM TO BE SOLVED: To provide an exhaust system and a particulate matter measuring sensor used for the same, miniaturizing a device and reducing cost thereof by accurately detecting the deterioration of a particulate matter collecting device without causing an increase in a pressure loss.
SOLUTION: This exhaust system 1 for internal combustion engine includes a particulate-matter collecting device 12 disposed in an exhaust gas passage 14 of the internal combustion engine, a downstream-side exhaust gas passage 4 disposed at a downstream side of the particulate matter collecting device, and a particulate matter measuring sensor 2 attached on an attachment position 2c on the downstream-side exhaust gas passage and detecting the deterioration of the particulate matter collecting device. The axial length L of the downstream-side exhaust gas passage between a downstream-side end surface 12e of the particulate-matter collecting device and the attachment position 2c of the particulate-matter measuring sensor is 0.5m or longer, and the projection area S
2t of a section 2t facing the inside of the downstream-side exhaust gas passage of the particulate matter measuring sensor facing the inside 4a of the downstream-side exhaust gas passage projected on the cross section of the downstream-side exhaust gas passage is smaller than the cross section S
4 of the downstream-side exhaust gas passage.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种排气系统和用于其的颗粒物质测量传感器，通过精确地检测颗粒物质收集装置的劣化而不会导致压力损失的增加来使装置小型化并降低成本。解决方案：内燃机用排气系统1包括设置在内燃机的排气通道14中的颗粒物收集装置12，设置在颗粒物的下游侧的下游侧废气通道4 物质收集装置和安装在下游侧废气通道上的安装位置2c上的颗粒物质测量传感器2，并检测颗粒物质收集装置的劣化。颗粒物质收集装置的下游侧端面12e与颗粒物质测量传感器的安装位置2c之间的下游侧废气通道的轴向长度L为0.5m以上，投影面积S 面向位于下游侧废气通道的内侧4a的颗粒物质测量传感器的下游侧废气通道的内侧的部分2t的第二部分的SBB 2t 侧排气通道小于下游侧废气通道的横截面S SB> 4 。版权所有（C）2011，JPO＆INPIT

3. 发明专利

JP2007278732A Device and method for determining deterioration of sensor element 有权
标题翻译：用于确定传感器元件检测的装置和方法
公开(公告)号：JP2007278732A
公开(公告)日：2007-10-25
申请号：JP2006102281
申请日：2006-04-03
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： WAKAZONO TOMOHIRO , OYA SEIJI , SHIOTANI KOJI , KONDO TOMONORI , NASU MINEJI
IPC分类号： G01N27/26 , G01N27/416 , G01N27/419
摘要： PROBLEM TO BE SOLVED: To provide a device and method for determining deterioration of a sensor element capable of determining the deterioration state of a gas sensor element with various cells. SOLUTION: In a gas sensor control device 190, in S170 in sensor diagnosis processing, an oxygen partial pressure control state in the first measuring chamber 159 relative to a current-carrying state into an oxygen partial pressure detection cell 112 is detected, and in S180, it is determined whether a NOx gas sensor element 10 is in a normal state or in a deteriorated state by determining whether the detected oxygen partial pressure control state is within a normal range determined beforehand. The gas sensor control device 190 can determined whether the NOx gas sensor element 10 can control properly the oxygen partial pressure in the first measuring chamber 159, and can determine the deterioration state of the NOx gas sensor element 10 with various cells. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于确定能够利用各种单元确定气体传感器元件的劣化状态的传感器元件的劣化的装置和方法。解决方案：在气体传感器控制装置190中，在传感器诊断处理中的S170中，检测第一测量室159中相对于氧气分压检测单元112的通电状态的氧分压控制状态，并且在S180中，通过确定检测到的氧分压控制状态是否在预先确定的正常范围内，确定NOx气体传感器元件10是处于正常状态还是处于劣化状态。气体传感器控制装置190可以确定NOx气体传感器元件10是否能够适当地控制第一测量室159中的氧分压，并且可以用各种单元确定NOx气体传感器元件10的劣化状态。版权所有（C）2008，JPO＆INPIT

4. 发明专利

JP2011231728A Failure detecting device for particulate filter 有权
标题翻译：用于颗粒过滤器的故障检测装置
公开(公告)号：JP2011231728A
公开(公告)日：2011-11-17
申请号：JP2010104654
申请日：2010-04-29
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NISHIYAMA HIROYUKI , KONDO TOMONORI , NADANAMI NORIHIKO , MATSUTANI WATARU
IPC分类号： F01N3/02 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To enable the failure determination of a particulate filter without measuring the precise amount of accumulation of the PM of the particulate filter.SOLUTION: This failure detecting device 1 includes particulate sensors 41 and 42 on the upstream side and downstream side of a particulate filter (DPF 30). Both the sensors can specify the amount of particulates passing themselves. The output ratio (PM discharge ratio) of both the particulate sensors 41 and 42 is computed, and when focucing attention on fluctuation of this ratio, it is found that the failed particulate filter indicates a change in which the PM discharge ratio has the minimum value after the PM discharge ratio has once dropped, and rises again, and the failure of the particulate filter is determined based on this.
摘要翻译：要解决的问题：为了能够在不测量微粒过滤器的PM的精确积聚量的情况下实现微粒过滤器的故障确定。解决方案：该故障检测装置1包括在微粒过滤器（DPF 30）的上游侧和下游侧的微粒传感器41和42。两个传感器都可以指定通过自身的颗粒物量。计算两个颗粒传感器41和42的输出比（PM排放比），并且当关注该比率的波动时，发现失效的微粒过滤器指示PM排放比具有最小值的变化在PM排出比一次下降之后，再次上升，并且基于此确定微粒过滤器的故障。版权所有（C）2012，JPO＆INPIT

5. 发明专利

JP2008209400A Soot detecting apparatus and method 审中-公开
标题翻译：检测装置和方法
公开(公告)号：JP2008209400A
公开(公告)日：2008-09-11
申请号：JP2007324035
申请日：2007-12-14
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KONDO TOMONORI , NADANAMI NORIHIKO , KOMATSU DAISUKE , MATSUTANI WATARU , IMAEDA KOICHI , YOKOI HITOSHI , KATSUTA MASATO
IPC分类号： G01N27/68
摘要： PROBLEM TO BE SOLVED: To provide a soot detecting apparatus which is meant to minimize the variation in a discharge voltage produced at a pair of electrodes of a discharge sensor for improving the detection accuracy of soot.
SOLUTION: When a high-voltage generator circuit 500 generates a high voltage at each conduction of a transistor 420, based on individual pulse signals from a pulse signal generation circuit 410; while a relay 620 of a switching circuit 600 is driven by a drive circuit 610, the high voltage is applied to the discharge sensor 200 with closing both relay switches 622, 623 accompanying the drive of the relay 620. As a result, the deposits of a center electrode 232 are cleaned by the discharging of the discharge sensor 200. After that, when the relay 620 stops, the high voltage from the high-voltage generator circuit 500 is applied to the discharge sensor 200, with both relay switches 624, 625 being closed accompanying the stoppage of the relay 620. Accordingly, a first soot concentration signal is detected, based on the discharge voltage produced in the discharge sensor 620.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种烟灰检测装置，其旨在最小化在放电传感器的一对电极处产生的放电电压的变化，以提高烟灰的检测精度。解决方案：当高电压发生器电路500根据来自脉冲信号产生电路410的各个脉冲信号在晶体管420的每次导通时产生高电压时，而开关电路600的继电器620由驱动电路610驱动时，伴随着继电器620的驱动而使两个继电器开关622,623闭合，高电压被施加到放电传感器200。结果，通过放电传感器200的放电来清洁中心电极23.之后，当继电器620停止时，来自高电压发生器电路500的高电压被施加到放电传感器200，两个继电器开关624,625 伴随着继电器620的停止而关闭。因此，基于放电传感器620中产生的放电电压来检测第一烟灰浓度信号。（C）2008，JPO＆INPIT

6. 发明专利

JP2007198900A Device and method for determining deterioration of sensor element 有权
标题翻译：用于确定传感器元件检测的装置和方法
公开(公告)号：JP2007198900A
公开(公告)日：2007-08-09
申请号：JP2006017684
申请日：2006-01-26
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： OYA SEIJI , WAKAZONO TOMOHIRO , SHIOTANI KOJI , KONDO TOMONORI , NASU MINEJI
IPC分类号： G01N27/26 , G01N27/41 , G01N27/416 , G01N27/419
摘要： PROBLEM TO BE SOLVED: To provide a device and a method for determining deterioration of a sensor element, capable of determining a deterioration condition in the gas sensor element provided with various cells. SOLUTION: A gas sensor controller 190 executes processing for detecting a current value (current value in high dissociation) of the second pump current Ip2 flowing in the second pump cell 113, by processing in the S170, under the condition where the second pump voltage Vp2 impressed to the second pump cell 113 is set to a high dissociation voltage value (voltage value capable of dissociating a component more difficult to be dissociated than NOx), by processing in the S130. The gas sensor controller 190 compares the current value in the high dissociation with a deterioration determining threshold value, in the S 180, determines the NOx gas sensor element 10 to be under a normal state when the current value in the high dissociation is the deterioration determining threshold value or more, and determines the NOx gas sensor element 10 to be under a deteriorated state when the current value in the high dissociation is less than the deterioration determining threshold value. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种能够确定设置有各种单元的气体传感器元件的劣化状况的传感器元件的劣化的装置和方法。解决方案：气体传感器控制器190执行用于检测流过第二泵室113中的第二泵浦电流Ip2的电流值（高离解的当前值）的处理，通过S170中的处理，在第二施加到第二泵电池113的泵浦电压Vp2通过S130中的处理被设定为高离解电压值（能够使分解比NOx更难解离的成分的电压值）。气体传感器控制器190将高离解中的当前值与劣化判定阈值进行比较，在S180中，当高解离中的电流值为劣化判定时，将NOx气体传感器元件10确定为正常状态阈值以上，并且当高解离中的电流值小于劣化判定阈值时，将NOx气体传感器元件10判定为劣化状态。版权所有（C）2007，JPO＆INPIT

7. 发明专利

JP2004219405A Gas sensor 有权
公开(公告)号：JP2004219405A
公开(公告)日：2004-08-05
申请号：JP2003403338
申请日：2003-12-02
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KONDO TOMONORI , KITANOYA SHOJI , NADANAMI NORIHIKO , ISHIDA NOBORU , OSHIMA TAKAFUMI
IPC分类号： G01N27/406 , G01N27/04 , G01N27/407 , H01M8/04 , H01M8/10
CPC分类号： G01N27/4074 , H01M8/04089 , H01M2008/1095
摘要： PROBLEM TO BE SOLVED: To reversibly and continuously measure a concentration of catalyst poison gas such as CO, without requiring a restoration means such as a heater, and to measure the concentration of catalyst poison gas without being affected by a concentration of H 2 O. SOLUTION: An electric circuit 15 for a gas sensor has an alternating current source 19 for impressing an alternating current between both electrodes 3, 5, an A.C voltmeter 21 for measuring an alternating current voltage (alternating current active voltage V) between the both electrodes 3, 5, and an A.C ampere meter 23 for measuring a current (alternating active current I) between the both electrodes 3, 5. The alternating current is impressed between the both electrodes 3, 5 to find an impedance based on the alternating current active voltage V and the alternating active current I generated therein. The concentration of catalyst poison gas is found based on the impedance, using a map indicating a relation between the impedance and the concentration of catalyst poison gas, because the impedance corresponds to the concentration of catalyst poison gas. COPYRIGHT: (C)2004,JPO&NCIPI

8. 发明专利

JP2011033577A Fine particle sensor 审中-公开
标题翻译：精细粒子传感器
公开(公告)号：JP2011033577A
公开(公告)日：2011-02-17
申请号：JP2009182630
申请日：2009-08-05
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： NISHIYAMA HIROYUKI , KONDO TOMONORI , NADANAMI NORIHIKO , MATSUTANI WATARU
IPC分类号： G01N27/04 , G01N15/06
摘要： PROBLEM TO BE SOLVED: To provide a fine particle sensor effectively collecting fine particles such as soot from measured gas such as exhaust gas and improving a sensitivity in detecting the fine particles. SOLUTION: The soot detection sensor 1 is equipped with: a detection part 27 detecting soot based on a resistance variable in accordance with a condition of soot deposition; and a cover 33 having a shielding part to block passage of the measured gas, and the cover 33 has a gas through-hole 35 allowing to pass the measured gas. Formulas (1) and (2) are satisfied; the formula (1): (A/B)×100≤40, and the formula (2): A 1/2 /T≥0.5, in which A represents an area of the gas through-hole 35 projected on a virtual plane of the detection part 27, B represents an area of the shielding part projected on the virtual plane, and T represents a minimum distance from an opening end of the gas through-hole 35 to the virtual plane. COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：提供一种微粒传感器，其有效地从诸如废气的测量气体中收集诸如烟灰的细小颗粒，并提高了检测微粒的灵敏度。烟尘检测传感器1配备有：检测部27，其根据烟灰沉积的条件基于电阻变化来检测烟灰; 以及具有阻挡被测气体通过的屏蔽部的盖33，盖33具有通过测定气体的气体通孔35。公式（1）和（2）被满足; 式（1）：（A / B）×100≤40，式（2）：A 1/2 /T≥0.5，其中A表示气体通孔的面积，投影在检测部27的虚拟平面上的孔35，B表示投影在虚拟平面上的屏蔽部的面积，T表示从气体通孔35的开口端到虚拟平面的最小距离。版权所有（C）2011，JPO＆INPIT

9. 发明专利

JP2007327936A Soot sensor 审中-公开
标题翻译： SOOT SENSOR
公开(公告)号：JP2007327936A
公开(公告)日：2007-12-20
申请号：JP2007062867
申请日：2007-03-13
申请人： Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社
发明人： KONDO TOMONORI , NADANAMI NORIHIKO , KOMATSU DAISUKE , YOKOI HITOSHI , KATSUTA MASATO
IPC分类号： G01N27/68 , G01N27/00
CPC分类号： Y02T10/47
摘要： PROBLEM TO BE SOLVED: To elaborate a position of a heater in a relationship of a discharge section, and discharge the discharge section without an effect due to particles other than soot contributing to the conductivity in the discharge section in a soot sensor provided with the heater for burning the soot in the discharge section. SOLUTION: The soot sensor is provided with a metal fitting member 100, a cylindrical member 200 comprising an electrical insulating material, and a rod member 300. The cylindrical member 200 is coaxially supported within a main metal fitting 110 in the metal fitting member 100. The rod member 300 is fitted and inserted into the cylindrical member 200, and protruded from a tip of the cylindrical member 200 at a center electrode 320. The center electrode 320 faces an electrode 122 of an outer electrode 120 in the metal fitting member 100 at an electrode 321. A tip of the heater 400 is attached on the outer peripheral face of a tip region 630 in the cylindrical member 200. There is a gap of 25 mm between the lower end 435 of a heat resistance section 431 in the heater 400 and a tip of the electrode 321 in the center electrode 320. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：为了阐述加热器在放电部分的关系中的位置，并且在提供的烟灰传感器中排出排出部分而不会由于在烟炱传感器中引起导电性的烟尘以外的颗粒而产生影响用于在排放部分燃烧烟灰的加热器。烟道传感器设置有金属配件构件100，包括电绝缘材料的圆柱形构件200和杆构件300.圆柱形构件200同轴地支撑在金属配件110内的主金属配件110内杆构件300被装配并插入到圆柱形构件200中，并且在中心电极320处从圆柱形构件200的尖端突出。中心电极320面对金属配件中的外部电极120的电极122 元件100在电极321处。加热器400的尖端附接在圆筒形构件200中的尖端区域630的外周面上。在耐热部分431的下端435之间存在25mm的间隙加热器400和中心电极320中的电极321的尖端。版权所有（C）2008，JPO＆INPIT

10. 发明专利

JP2007147383A Device and method for determining degradation of sensor element 有权
标题翻译：用于确定传感器元件降解的装置和方法
公开(公告)号：JP2007147383A
公开(公告)日：2007-06-14
申请号：JP2005340536
申请日：2005-11-25
申请人： Honda Motor Co Ltd , Ngk Spark Plug Co Ltd , 日本特殊陶業株式会社 , 本田技研工業株式会社
发明人： OYA SEIJI , WAKAZONO TOMOHIRO , SHIOTANI KOJI , KONDO TOMONORI , NASU MINEJI , KUBOTA HIROSHI , YANADA KAZUO , AWANO KOICHI
IPC分类号： G01N27/26 , G01N27/419
CPC分类号： G01N33/0037 , G01N27/4175 , Y02A50/245
摘要： PROBLEM TO BE SOLVED: To provide a device and method for determining degradation of a sensor element capable of determining a degradation state of a gas sensor element having various cells. SOLUTION: A control section for controlling an NOx gas sensor element executes processing (S190) of varying the oxygen partial pressure in a second measuring chamber by varying the oxygen partial pressure in a first measuring chamber by sensor diagnosing processing, processing (S180) of detecting a current value flowing in a second pump cell before varying the oxygen partial pressure, and processing (S230) of detecting a current value flowing in the second pump cell after varying the oxygen partial pressure. The control section executes processing (S240 and S250) of determining whether the ratio of the current value detected by each current value detecting means is within a preset allowable range, determining that the second pump cell 113 is in a normal state when the ratio of the current value is included in the allowable range, and determining that the second pump cell 113 is in a degradation state when the ratio of the current value is out of the allowable range. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种用于确定能够确定具有各种单元的气体传感器元件的劣化状态的传感器元件的劣化的装置和方法。解决方案：用于控制NOx气体传感器元件的控制部分执行通过传感器诊断处理，处理（S180）改变第一测量室中的氧分压来改变第二测量室中的氧分压的处理（S190）），在改变氧分压之前检测在第二泵浦电池中流动的电流值，以及处理（S230），其在改变氧分压之后检测在第二泵浦电池中流动的电流值。控制部执行判定各电流值检测装置检测出的电流值的比例是否处于规定的容许范围内的处理（S240，S250），在判定为第二泵浦电池113的比例为电流值被包含在容许范围内，并且当电流值的比值超出容许范围时，确定第二泵浦电池113处于劣化状态。版权所有（C）2007，JPO＆INPIT

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