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14 条记录 (耗时 0.01 秒)

    SENSOR
    1.
    发明公开
    SENSOR 审中-公开

    公开(公告)号：EP3181845A4

    公开(公告)日：2018-02-07

    申请号：EP15831669

    申请日：2015-08-11

    申请人： ISUZU MOTORS LTD

    发明人： UCHIYAMA TADASHI ,  MURASAWA NAOTO ,  HANAWA SATOSHI

    IPC分类号： F01N3/023 ,  F01N3/00 ,  F01N9/00 ,  G01N27/22

    CPC分类号： F01N3/00 ,  F01N3/023 ,  F01N9/00 ,  F01N2560/05 ,  G01N27/22 ,  G01N27/221

    摘要： A sensor that continuously estimates a PM amount in exhaust gas. The sensor includes a filter member 31 including a plurality of cells that trap PM in exhaust gas, electrode members 32, 33 arranged to face each other with the cell interposed therebetween and forming a capacitor, an electric heater 34 that executes, when a predetermined amount of PM has accumulated in the cells, filter regeneration for combusting and removing the PM, a temperature sensor 35 that acquires the temperature of the filter member 31, a storage unit 40 that stores therein a reference temperature, which is the temperature of the filter member 31 in a case where the filter regeneration has been executed in a state in which PM is not flowing into the filter member 31, and estimation units 42, 43, 44 that estimate a PM amount included in the exhaust gas based on an electrostatic capacitance change amount between the electrode members 32, 33 during a regeneration interval period, and estimate the PM amount included in the exhaust gas based on a difference between the temperature acquired by the temperature sensor 35 and the reference temperature during a filter regeneration interval.

    DIAGNOSIS DEVICE
    2.
    发明公开
    DIAGNOSIS DEVICE 审中-公开
    DIAGNOSEVORRICHTUNG

    公开(公告)号：EP3029295A4

    公开(公告)日：2017-01-11

    申请号：EP14831583

    申请日：2014-07-31

    申请人： ISUZU MOTORS LTD

    发明人： HANAWA SATOSHI ,  UCHIYAMA TADASHI ,  FUJIE HIDEKAZU ,  MURASAWA NAOTO

    IPC分类号： F02B29/04 ,  F02B77/08 ,  F02D41/22 ,  F02M26/05 ,  F02M26/22 ,  F02M26/47 ,  F02M26/49 ,  F02M35/10

    CPC分类号： F02B77/083 ,  F02B29/04 ,  F02D41/22 ,  F02D2041/0067 ,  F02D2200/0414 ,  F02D2200/0416 ,  F02M26/05 ,  F02M26/22 ,  F02M26/47 ,  F02M26/49 ,  F02M35/1038 ,  Y02T10/146

    摘要： The invention relates to a diagnosis device that effectively diagnoses a cooler without providing a temperature sensor upstream of the cooler. The diagnosis device diagnoses the cooler (16, 22) adapted to cool a fluid flowing through intake and exhaust systems (11, 12) of an engine (10), and includes: a downstream temperature sensor (34, 37) for detecting a fluid temperature downstream of the cooler; a fluid temperature calculation unit (42, 52, 53) for calculating a fluid temperature upstream of the cooler based on a fluid state quantity; a sensor output value calculation unit (44, 54) for assuming an upstream temperature sensor configured to detect a fluid temperature upstream of the cooler, reflecting a sensor response delay in the calculated fluid temperature, and calculating an estimated sensor output value of the upstream temperature sensor; and a cooler diagnosis unit (45, 55) for diagnosing the cooling efficiency of the cooler based on an actual sensor input value entered from the downstream temperature sensor (34, 37) and the calculated estimated sensor output value.

    摘要翻译： 本发明涉及诊断装置，该诊断装置有效地诊断冷却器而不在冷却器的上游设置温度传感器。 诊断装置诊断适于冷却流过发动机（10）的进气和排气系统（11,12）的流体的冷却器（16,22），并且包括：用于检测流体的下游温度传感器（34,37） 温度下游的温度; 用于基于流体状态量计算冷却器上游的流体温度的流体温度计算单元（42,52,53）; 传感器输出值计算单元，用于假设上游温度传感器被配置为检测所述冷却器上游的流体温度，反映所计算的流体温度中的传感器响应延迟，并且计算所述上游温度的估计的传感器输出值 传感器; 以及用于基于从下游温度传感器（34,37）输入的实际传感器输入值和所计算的估计传感器输出值来诊断冷却器的冷却效率的冷却器诊断单元（45,55）。

    SENSOR
    3.
    发明公开
    SENSOR 审中-公开

    公开(公告)号：EP3181844A4

    公开(公告)日：2018-02-07

    申请号：EP15831639

    申请日：2015-08-11

    申请人： ISUZU MOTORS LTD

    发明人： UCHIYAMA TADASHI ,  MURASAWA NAOTO ,  HANAWA SATOSHI

    IPC分类号： F01N3/023 ,  F01N3/00 ,  F01N9/00 ,  G01N27/22

    CPC分类号： F01N13/008 ,  F01N2560/05 ,  F01N2560/12 ,  F01N2560/20 ,  G01N27/221

    摘要： A sensor that continuously estimates a PM amount in exhaust gas. The sensor includes a filter member 31 including a plurality of cells that trap PM in exhaust gas; electrode members 32, 33 arranged to face each other with the cell interposed therebetween and forming a capacitor, an electric heater 34 that executes, when a predetermined amount of PM has accumulated in the cells, filter regeneration of heating the cells to combust and remove the PM, a storage unit 40 that stores therein a reference reduction amount, which is an electrostatic capacitance reduction amount between the electrode members 32, 33 in a case where the filter regeneration is executed in a state where the PM is not flowing into the filter member 31, and estimation units 42, 43, 44 that estimate a PM amount based on an actual electrostatic capacitance change amount between the electrode members 32, 33 during a regeneration interval period, and estimate the PM amount based on a difference between an actual electrostatic capacitance reduction amount between the electrode members 32, 33 and the reference reduction amount during a filter regeneration period.

    SENSOR OUTPUT VALUE ESTIMATION DEVICE
    5.
    发明公开
    SENSOR OUTPUT VALUE ESTIMATION DEVICE 审中-公开
    设备传感器的性能值

    公开(公告)号：EP3029303A4

    公开(公告)日：2017-04-05

    申请号：EP14831966

    申请日：2014-07-31

    申请人： ISUZU MOTORS LTD ,  TRANSTRON INC

    发明人： HANAWA SATOSHI ,  IKAI YOSHIAKI

    IPC分类号： F02D45/00 ,  F02D41/14 ,  F02D41/22 ,  F02M26/00 ,  G01K7/00 ,  G01K7/42

    CPC分类号： F02D41/1447 ,  F02D41/1446 ,  F02D41/222 ,  F02D2041/1431 ,  F02M26/05 ,  F02M26/23 ,  G01K7/42 ,  G01K2205/04 ,  Y02T10/40

    摘要： The present invention pertains to a sensor output value estimation device that effectively estimates sensor output values reflecting a response delay of a temperature sensor. The sensor output value estimation device includes an estimated gas temperature calculation unit (43) for calculating an estimated gas temperature of an engine (10) on the basis of at least a running condition of the engine (10) and a state quantity of the gas in the engine (10). The sensor output value estimation device also includes an estimated sensor output value calculation unit (44) for calculating an estimated sensor output value reflecting the response delay of the temperature sensor (31) on the basis of the calculated estimated gas temperature and a pre-stored first model formula specifying the relation among the temperature change time constant of the temperature sensor (31), the gas flow rate, and the gas temperature.

    EXHAUST PURIFICATION SYSTEM
    8.
    发明公开
    EXHAUST PURIFICATION SYSTEM 审中-公开
    ABGASREINIGUNGSSYSTEM

    公开(公告)号：EP3056699A4

    公开(公告)日：2017-06-07

    申请号：EP14851549

    申请日：2014-10-08

    申请人： ISUZU MOTORS LTD

    发明人： UCHIYAMA TADASHI ,  FUJIE HIDEKAZU ,  MURASAWA NAOTO ,  HANAWA SATOSHI

    IPC分类号： F01N3/023 ,  F01N3/025 ,  F01N3/10 ,  F01N9/00 ,  F01N13/00 ,  F02D41/02 ,  F02D41/14 ,  F02D41/40

    CPC分类号： F01N9/002 ,  F01N3/0253 ,  F01N3/106 ,  F01N13/0093 ,  F01N13/0097 ,  F01N13/011 ,  F01N2560/12 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1606 ,  F02D41/029 ,  F02D41/1466 ,  F02D41/405 ,  F02D2200/0804 ,  F02D2200/0812 ,  Y02T10/47

    摘要： The present invention relates to an exhaust purification system and detects an amount of PM accumulated in a DPF with high precision. The exhaust purification system includes: a DOC (21) provided on an exhaust path (12) of an engine (10); an upstream DPF (22) and a downstream DPF (23) that are provided on the exhaust path (12) at positions downstream of the DOC (21) to collect the PM contained in exhaust gas; electrodes (27) that detect a capacitance of the upstream DPF (22); a PM accumulation estimating unit (51) that estimates at least an amount of PM accumulated in the downstream DPF (23) on the basis of the capacitance received from the electrodes (27); and a forced regeneration control unit (53) that injects fuels into the DOC (21) and performs forced regeneration that burns and removes at least the PM accumulated in the downstream DPF (23) when the accumulated PM amount that is received from the PM accumulation estimating unit (51) surpasses a predetermined amount.

    摘要翻译： 排气净化装置技术领域本发明涉及排气净化装置，能够高精度地检测DPF中堆积的PM的量。 该排气净化系统包括：设置在发动机（10）的排气通路（12）上的DOC（21）; 在所述排气通路（12）的位于所述DOC（21）的下游侧的位置设置的上游侧DPF（22）以及下游侧DPF（23） 检测上游DPF（22）的电容的电极（27）; PM蓄积推定部（51），基于从所述电极（27）输入的所述静电电容，至少推定所述下游侧DPF（23）中蓄积的PM的量。 以及强制再生控制部（53），其向所述DOC（21）喷射燃料，并进行强制再生，该强制再生在从所述PM蓄积部接收到的累计PM量时，至少燃烧并去除所述下游侧DPF（23） 估计单元（51）超过预定量。

    DIAGNOSTIC DEVICE
    9.
    发明公开
    DIAGNOSTIC DEVICE 有权
    DIAGNOSEVORRICHTUNG

    公开(公告)号：EP3048276A4

    公开(公告)日：2017-06-07

    申请号：EP14846463

    申请日：2014-09-18

    申请人： ISUZU MOTORS LTD

    发明人： FUJIE HIDEKAZU ,  UCHIYAMA TADASHI ,  HANAWA SATOSHI ,  MURASAWA NAOTO

    IPC分类号： F01N11/00 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/24 ,  F01N3/36

    CPC分类号： F01N11/00 ,  B01D53/9477 ,  B01D53/9495 ,  B01D2251/2062 ,  B01D2251/2067 ,  B01D2251/208 ,  B01D2257/404 ,  B01D2257/702 ,  F01N3/103 ,  F01N3/2066 ,  F01N13/009 ,  F01N2550/02 ,  F01N2590/08 ,  F01N2610/03 ,  F01N2900/1631 ,  Y02A50/2325 ,  Y02T10/47

    摘要： The present invention relates to a diagnostic device which performs highly accurate diagnosis of the deterioration of a DOC. The diagnostic device includes: a DOC (15) for oxidizing HC and NO in an exhaust gas; an SCR catalyst (22) for reducing and purifying NOx contained in the exhaust gas; a NOx purification rate calculation unit (41) which calculates, based on NOx values at upstream and downstream sides of the SCR catalyst (22), a low temperature NOx purification rate and a high temperature NOx purification rate; a HC heat generation rate calculation unit (42) which calculates an HC purification rate based on at least the difference between the exhaust gas heat quantities at upstream and downstream sides of the DOC (15); and a deterioration determination unit (45) which determines the deterioration in the NO 2 producing capability of the DOC (15) based on the calculated low temperature NOx purification rate, the calculated high temperature NOx purification rate, and the calculated HC purification rate.

    摘要翻译： 诊断装置技术领域本发明涉及对DOC的恶化进行高精度诊断的诊断装置。 诊断装置包括：用于氧化排气中的HC和NO的DOC（15） SCR催化剂（22），其用于还原和净化排气中所含的NOx; 基于所述SCR催化剂（22）的上游侧和下游侧的NO X值，计算低温NO X净化率和高温NO X净化率的NO X净化率计算部（41） 至少基于所述DOC（15）的上游侧和下游侧的废气热量之间的差异来计算HC净化率的HC生热率计算单元（42）; 以及劣化判定部（45），基于计算出的低温NO X净化率，计算出的高温NO X净化率和计算出的HC净化率，判定DOC（15）的NO 2生成能力的劣化。