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公开(公告)号：US09476807B2
公开(公告)日：2016-10-25
申请号：US14372521
申请日：2013-02-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Norimasa Osawa , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01N1/2252 , F01N2560/02 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N33/0027 , G01N33/0036 , G01N2291/02408
Abstract: A particulate sensor including a sensor unit (300) having an ion generation section (611, 361, 322); an electric charge section (612) for electrically charging at least portion of particulates S using ions PI; a capture section (616, 617, 316, 326, 362) for trapping at least portion of the ions PI not used for electrically charging the particulates S; and a sensor ground section (340, 310v, 330v3) connected to the capture section and having a first floating potential corresponding to the amount of the ions PI trapped by the capture section. The sensor unit can detect the amount of the particulates S in the gas on the basis of the electric potential of the sensor ground section. The sensor ground section is covered with insulating ceramic at that outer portion of the sensor unit which comes into contact with the gas.
Abstract translation: 一种颗粒传感器，包括具有离子产生部分（611,361,322）的传感器单元（300）; 用于使用离子PI对至少部分微粒S进行充电的电荷部分（612）; 捕获部分（616,617,316,326,362），用于捕获不用于对微粒S进行充电的至少部分离子PI; 以及传感器接地部分（340,310v，330v3），其连接到所述捕获部分并且具有对应于由所述捕获部分捕获的离子PI的量的第一浮动电位。 传感器单元可以基于传感器接地部分的电位来检测气体中的微粒S的量。 在与气体接触的传感器单元的外部，传感器接地部分覆盖有绝缘陶瓷。
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公开(公告)号：US20140352405A1
公开(公告)日：2014-12-04
申请号：US14374247
申请日：2013-03-08
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: F01N11/00 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N27/68 , G01N2015/0046 , G01R31/025
Abstract: A particulate detection system (1) for detecting the amount of particulates S in a gas under measurement EG includes a detection section (10), a drive circuit (210, 240), and a drive control section (225). The detection section includes a first potential member (31, 12, 13) maintained at a first potential PV1, a second potential member (14, 51, 53) maintained at a second potential PVE, PV3, and an insulating member (121, 77, 76) disposed between the first and second potential members. The system includes insulation test means (215, S3, 245, S5) for testing the degree of insulation between the first and second potential members. The drive control section includes drive permission/prohibition determination means S4, S6 for determining, on the basis of the degree of insulation tested by the insulation test means, whether to permit the drive of the detection section by the drive circuit.
Abstract translation: 用于检测被测气体中的微粒S量的微粒检测系统（1）包括检测部分（10），驱动电路（210,240）和驱动控制部分（225）。 检测部分包括保持在第一电位PV1的第一电位部件（31,12,13），保持在第二电位PVE，PV3的第二电位部件（14,51,53）和绝缘部件 ，76）设置在第一和第二电位部件之间。 该系统包括用于测试第一和第二潜在构件之间的绝缘程度的绝缘测试装置（215,3S，245，S5）。 驱动控制部分包括驱动允许/禁止确定装置S4，S6，用于基于由绝缘测试装置测试的绝缘程度来确定是否允许驱动电路驱动检测部分。
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公开(公告)号：US10724991B2
公开(公告)日：2020-07-28
申请号：US15598715
申请日：2017-05-18
Applicant: NGK Spark Plug Co., LTD.
Inventor： Hirokazu Murase , Takeshi Sugiyama , Toshiya Matsuoka
Abstract: A particulate sensor can reduce the amount of floating ions discharged from the interior of a gas introduction pipe to the outside through a gas discharge opening, without providing an auxiliary electrode member which applies to the floating ions a repulsive force toward the gas introduction pipe to thereby assist the collection of the floating ions by the gas introduction pipe. The particulate sensor has an collection member which is connected to a gas introduction pipe to thereby be maintained at a collection potential and is disposed in the interior of the gas introduction pipe to be located between a forward end of the discharge electrode member and a gas discharge opening such that the forward end of the discharge electrode member cannot be visually recognized from the outside of the gas introduction pipe through the gas discharge opening.
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公开(公告)号：US10330579B2
公开(公告)日：2019-06-25
申请号：US14515608
申请日：2014-10-16
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Takeshi Sugiyama , Masayuki Motomura , Toshiya Matsuoka , Keisuke Tashima
Abstract: A particulate amount determination section of a particulate measurement system corrects a measurement signal or the amount of particulates determined from the measurement signal based on one or a plurality of three operating condition parameters selected from speed of the vehicle, rotational speed of the internal combustion engine and torque of the internal combustion engine.
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Patent Agency Ranking
公开(公告)号：US20190085748A1
公开(公告)日：2019-03-21
申请号：US16116484
申请日：2018-08-29
Applicant: NGK Spark Plug Co., LTD.
Inventor： Takeshi Sugiyama
Abstract: A particulate detection system detects the amount of particulates contained in filtered exhaust gas which has passed through a filter and is discharged to the outside of the vehicle. The particulate detection system includes a sensor disposed on the downstream side of the filter; a sensor circuit section which drives the sensor and obtains in real time a sensor output corresponding to the volumetric particulate amount of the particulates contained in the filtered exhaust gas; and a computation section which computes a distance particulate amount which is the weight or number of the particulates discharged per unit travel distance on the basis of the sensor output obtained by the sensor circuit section, travel distance of the vehicle, and flow rate of the exhaust gas.
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公开(公告)号：US09719907B2
公开(公告)日：2017-08-01
申请号：US14911095
申请日：2014-07-07
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Kazunari Kokubo
CPC classification number: G01N15/0656 , G01N2015/0046
Abstract: A particulate detection system (1) for detecting the quantity of particulates S in a gas under measurement EG, including a detection section (10), a drive circuit (210, 240), and a control section (230, 202). The detection section (10) has an ion source (11) and a particulate electrification section (12). The drive circuit (210) includes an ion source drive circuit (210) for performing constant current control. The control section (230, 202) includes current convergence determination means S2-S3, S5-S6, and detection start means S8 for starting detection of the quantity of the particulates S using the signal Is, detected by a detection circuit (230), after the gaseous discharge current Id has converged to an allowable range IR.
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公开(公告)号：US09395273B2
公开(公告)日：2016-07-19
申请号：US14367378
申请日：2012-11-22
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01M15/102 , G01N1/2252 , G01N1/28 , G01N15/0656 , G01N33/0027 , G01N2001/2255 , G01N2015/0046
Abstract: A particulate detection system (1) includes detection section (10), compressed air source (300) which includes compressor (301) for producing compressed air AK, compressor drive circuit (320) and control means (100). The detection section includes a gas jetting source (11). A drive condition for jetting air AR from jetting hole (31N) at a first flow rate Q1 is defined as a first drive condition JK1, and a drive condition for jetting the air AR at a second flow rate Q2 smaller than the first flow rate Q1 is defined as a second drive condition JK2. The control means includes first instruction means S5 for driving the compressor under the first drive condition JK1 when the quantity of the particulates S is detected, and second instruction means S6 for driving the compressor under the second drive condition JK2 when the quantity of the particulates S is not detected.
Abstract translation: 微粒检测系统（1）包括检测部分（10），压缩空气源（300），其包括用于产生压缩空气AK的压缩机（301），压缩机驱动电路（320）和控制装置（100）。 检测部包括气体喷射源（11）。 将用于以第一流量Q1喷射空气AR的喷射空气AR的驱动条件定义为第一驱动条件JK1，以及用于以比第一流量Q1小的第二流量Q2喷射空气AR的驱动条件 被定义为第二驱动条件JK2。 控制装置包括当检测到微粒S的量时在第一驱动条件JK1下驱动压缩机的第一指令装置S5和当第二驱动条件JK2下的微粒S的量驱动压缩机的第二指令装置S6 没有检测到。
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公开(公告)号：US20150285711A1
公开(公告)日：2015-10-08
申请号：US14367378
申请日：2012-11-22
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01M15/102 , G01N1/2252 , G01N1/28 , G01N15/0656 , G01N33/0027 , G01N2001/2255 , G01N2015/0046
Abstract: A particulate detection system (1) includes detection section (10), compressed air source (300) which includes compressor (301) for producing compressed air AK, compressor drive circuit (320) and control means (100). The detection section includes a gas jetting source (11). A drive condition for jetting air AR from jetting hole (31N) at a first flow rate Q1 is defined as a first drive condition JK1, and a drive condition for jetting the air AR at a second flow rate Q2 smaller than the first flow rate Q1 is defined as a second drive condition JK2. The control means includes first instruction means S5 for driving the compressor under the first drive condition JK1 when the quantity of the particulates S is detected, and second instruction means S6 for driving the compressor under the second drive condition JK2 when the quantity of the particulates S is not detected.
Abstract translation: 微粒检测系统（1）包括检测部分（10），压缩空气源（300），其包括用于产生压缩空气AK的压缩机（301），压缩机驱动电路（320）和控制装置（100）。 检测部包括气体喷射源（11）。 将用于以第一流量Q1喷射空气AR的喷射空气AR的驱动条件定义为第一驱动条件JK1，以及用于以比第一流量Q1小的第二流量Q2喷射空气AR的驱动条件 被定义为第二驱动条件JK2。 控制装置包括当检测到微粒S的量时在第一驱动条件JK1下驱动压缩机的第一指令装置S5和当第二驱动条件JK2下的微粒S的量驱动压缩机的第二指令装置S6 没有检测到。
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公开(公告)号：US20150020574A1
公开(公告)日：2015-01-22
申请号：US14372521
申请日：2013-02-13
Applicant: NGK SPARK PLUG CO., LTD.
Inventor： Masayuki Motomura , Takeshi Sugiyama , Keisuke Tashima , Norimasa Osawa , Toshiya Matsuoka , Hitoshi Yokoi
CPC classification number: G01N1/2252 , F01N2560/02 , F01N2560/05 , G01M15/102 , G01N15/0656 , G01N33/0027 , G01N33/0036 , G01N2291/02408
Abstract: A particulate sensor including a sensor unit (300) having an ion generation section (611, 361, 322); an electric charge section (612) for electrically charging at least portion of particulates S using ions PI; a capture section (616, 617, 316, 326, 362) for trapping at least portion of the ions PI not used for electrically charging the particulates S; and a sensor ground section (340, 310v, 330v3) connected to the capture section and having a first floating potential corresponding to the amount of the ions PI trapped by the capture section. The sensor unit can detect the amount of the particulates S in the gas on the basis of the electric potential of the sensor ground section. The sensor ground section is covered with insulating ceramic at that outer portion of the sensor unit which comes into contact with the gas.
Abstract translation: 一种颗粒传感器，包括具有离子产生部分（611,361,322）的传感器单元（300）; 用于使用离子PI对至少部分微粒S进行充电的电荷部分（612）; 捕获部分（616,617,316,326,362），用于捕获不用于对微粒S进行充电的至少部分离子PI; 以及传感器接地部分（340,310v，330v3），其连接到所述捕获部分并且具有对应于由所述捕获部分捕获的离子PI的量的第一浮动电位。 传感器单元可以基于传感器接地部分的电位来检测气体中的微粒S的量。 在与气体接触的传感器单元的外部，传感器接地部分覆盖有绝缘陶瓷。
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