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    DPF FAILURE DETECTION METHOD AND DPF FAILURE DETECTION DEVICE
    1.
    发明公开
    DPF FAILURE DETECTION METHOD AND DPF FAILURE DETECTION DEVICE 有权
    DPF-AUSFALLERKENNUNGSVERFAHREN UND DPF-AUSFALLERKENNUNGSVORRICHTUNG

    公开(公告)号：EP2546484A4

    公开(公告)日：2016-08-10

    申请号：EP11753243

    申请日：2011-03-02

    Applicant: ISUZU MOTORS LTD

    Inventor： UCHIYAMA TADASHI ,  FUJIE HIDEKAZU ,  ASO MITSUHIRO

    IPC: F01N3/02

    CPC classification number: F01N11/007 ,  F01N11/002 ,  F01N2550/04 ,  F01N2560/12 ,  F02D41/029 ,  F02D41/22 ,  F02D2200/0812 ,  Y02T10/47

    Abstract: The present invention provides a DPF failure detection method and a DPF failure detection device, which can be realized with a simple configuration and detect a failure at low cost. The theoretical deposited amount of PM on a DPF 4 is calculated from the operating state of an internal combustion engine 2. The actual deposited amount of the PM on the DPF 4 is measured based on the electrical capacitance of an electrical capacitance type PM sensor 6. When the divergence of the actual deposited amount from the theoretical deposited amount exceeds an allowable limit, it is determined that the DPF 4 has a failure.

    Abstract translation: 本发明提供一种DPF故障检测方法和DPF故障检测装置，其可以以简单的配置实现并以低成本检测故障。 根据内燃机2的运转状态计算出DPF4上PM的理论沉积量。基于电容式PM传感器6的电容量，测定DPF4上的PM的实际沉积量。 当理论沉积量的实际沉积量的偏差超过允许极限时，确定DPF 4有故障。

    EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE
    4.
    发明公开
    EXHAUST PURIFICATION DEVICE FOR INTERNAL COMBUSTION ENGINE 有权
    爱丁堡VERBRENNUNGSMOTOR ABGASREINIGUNGSVORRICHTUNG

    公开(公告)号：EP2963261A4

    公开(公告)日：2016-11-16

    申请号：EP14756582

    申请日：2014-02-18

    Applicant: ISUZU MOTORS LTD

    Inventor： UCHIYAMA TADASHI ,  ASO MITSUHIRO ,  NODA MASAFUMI

    IPC: F01N3/20 ,  F01N3/023 ,  F01N3/025 ,  F01N3/029 ,  F01N3/031 ,  F01N3/035 ,  F01N3/08 ,  F01N3/36 ,  F01N9/00 ,  F01N13/00 ,  G01K7/00 ,  G01K13/00 ,  G05D23/00

    CPC classification number: F01N3/0253 ,  F01N3/035 ,  F01N3/2066 ,  F01N9/002 ,  F01N13/009 ,  F01N2240/04 ,  F01N2560/12 ,  F01N2570/14 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2900/0601 ,  F01N2900/1602 ,  F01N2900/1626 ,  G01K2205/04 ,  Y02T10/24 ,  Y02T10/47

    Abstract: The invention relates to an exhaust gas purification device of an internal combustion engine that can improve NOx purification capability. The exhaust gas purification device includes a DPF (16) for capturing PM in an exhaust gas, a urea water spraying unit (21) for spraying urea water into the exhaust gas, an SCR (22) for reducing and purifying NOx in the exhaust gas, electrostatic capacity detecting units (17a, 17b, 41) for detecting the electrostatic capacity of the DPF (16), a DPF temperature estimating unit (43) for estimating the inside temperature of the DPF (16) based on the electrostatic capacity, and a regeneration controlling unit (44) for executing forced DPF (16) regeneration. A target lower limit temperature is defined as temperature to trigger PM combustion, and a target upper limit temperature is defined as temperature to avoid filter erosion. The regeneration controlling unit (44) executes the forced regeneration with an amount of fuel supplied for causing the inside temperature to reach the target lower limit temperature when the inside temperature is at or above the SCR activation temperature, and executes the forced regeneration with another amount of fuel supplied for causing the inside temperature to reach the target upper limit temperature when the inside temperature is below the SCR activation temperature.

    Abstract translation: 本发明涉及一种能够提高NOx净化能力的内燃机的废气净化装置。 废气净化装置包括：用于在排气中捕集PM的DPF（16），用于将尿素水喷射到废气中的尿素水喷射单元（21），用于减少和净化废气中的NOx的SCR（22） 用于检测DPF（16）的静电电容的静电电容检测单元（17a，17b，41），用于基于静电电容估计DPF（16）的内部温度的DPF温度估计单元，以及 用于执行强制DPF（16）再生的再生控制单元（44）。 目标下限温度定义为触发PM燃烧的温度，目标上限温度定义为避免过滤器侵蚀的温度。 再生控制单元（44）在内部温度为SCR活化温度以上时，以供给内部温度使内部温度达到目标下限温度的燃料量进行强制再生，并以另一个量执行强制再生 当内部温度低于SCR活化温度时，供应的燃料用于使内部温度达到目标上限温度。

    EXHAUST PURIFICATION DEVICE
    6.
    发明公开
    EXHAUST PURIFICATION DEVICE 有权
    ABGASREINIGUNGSVORRICHTUNG

    公开(公告)号：EP3006685A4

    公开(公告)日：2017-03-15

    申请号：EP14807530

    申请日：2014-05-29

    Applicant: ISUZU MOTORS LTD

    Inventor： ASO MITSUHIRO ,  UCHIYAMA TADASHI

    IPC: F01N3/023 ,  F01N3/025 ,  F01N3/031 ,  F01N9/00 ,  F01N13/00

    CPC classification number: F01N9/002 ,  F01N3/025 ,  F01N3/0253 ,  F01N3/027 ,  F01N9/005 ,  F01N13/008 ,  F01N2560/05 ,  F01N2560/12 ,  F01N2900/1606 ,  F01N2900/1611 ,  F02D2200/0812 ,  Y02T10/47

    Abstract: The invention relates to an exhaust gas purification device that effectively detects an amount of ash collected and accumulated in a DPF. The exhaust gas purification device includes the DPF (16) for collecting PM contained in an exhaust gas, forced regeneration units (13, 25) capable of performing forced regeneration, capacitance detection units (17a, 17b, 21) for detecting a capacitance of the DPF (16), a total accumulated amount estimation unit (22) for estimating a total amount of accumulated PM and ash collected in the DPF (16) on the basis of the detected capacitance, and an ash accumulated amount calculation unit (23) for calculating an amount of accumulated ash by using, as the amount of accumulated ash, the total amount of accumulation which is estimated when the forced regeneration finishes.

    Abstract translation: 废气净化装置技术领域本发明涉及一种有效地检测DPF中收集并积聚的灰量的废气净化装置。 该排气净化装置具有：收集废气中所含的PM的DPF（16）;能够进行强制再生的强制再生单元（13,25）;检测电容器的静电电容的电容检测单元（17a，17b，21） DPF（16）;总累积量估算单元（22），用于基于检测到的电容来估算在DPF（16）中收集的PM和灰累积总量;以及灰累计量计算单元（23） 通过使用在强制再生完成时估计的累积总量作为累积灰分量来计算累积灰分量。

    DEVICE FOR MEASURING PARTICULATE SUBSTANCE
    7.
    发明公开
    DEVICE FOR MEASURING PARTICULATE SUBSTANCE 审中-公开
    用于测量颗粒物质

    公开(公告)号：EP2960447A4

    公开(公告)日：2016-11-09

    申请号：EP14753887

    申请日：2014-02-18

    Applicant: ISUZU MOTORS LTD

    Inventor： UCHIYAMA TADASHI ,  ASO MITSUHIRO ,  NODA MASAFUMI

    IPC: F01N3/023 ,  F01N3/00 ,  F01N9/00 ,  F01N11/00 ,  F01N13/00 ,  G01N15/00 ,  G01N15/06 ,  G01N27/22

    CPC classification number: G01N15/0656 ,  F01N9/002 ,  F01N11/00 ,  F01N13/008 ,  F01N2560/05 ,  F01N2560/12 ,  G01N15/0618 ,  G01N2015/0046 ,  Y02T10/47

    Abstract: The invention relates to a device for measuring particulate matter, and effectively prevents short-circuiting between electrodes which would otherwise be caused by PM accumulation. The particulate matter measuring device includes a DPF (16) that has a plurality of cells plugged alternatingly at the upstream side and downstream side. The cells are compartmentalized by porous partition walls. At least one of the cells is defined as a measurement cell (4). The particulate matter measuring device also includes a pair of electrodes (A, B) inserted from the non-plugged side in a pair of cells (2, 3) that oppose each other sandwiching the measurement cell (4). The particulate matter measuring device also includes a PM accumulation amount calculating unit (21, 22) that calculates an amount of accumulated PM, which is collected in the DPF (16), on the basis of the capacitance between the electrodes (A, B). The electrodes (A, B) include conductive wire cores (A1, B1) that are covered with insulating layers (A2, B2).

    PARTICULATE MATTER MEASUREMENT DEVICE
    8.
    发明公开
    PARTICULATE MATTER MEASUREMENT DEVICE 审中-公开
    测量装置的粒子材料

    公开(公告)号：EP2960448A4

    公开(公告)日：2016-11-02

    申请号：EP14754790

    申请日：2014-02-18

    Applicant: ISUZU MOTORS LTD

    Inventor： NODA MASAFUMI ,  ASO MITSUHIRO ,  UCHIYAMA TADASHI

    IPC: F01N3/023 ,  F01N3/00 ,  F01N9/00 ,  F01N11/00 ,  F01N13/00 ,  G01N15/06 ,  G01N27/22

    CPC classification number: G01N15/0656 ,  F01N9/002 ,  F01N11/00 ,  F01N13/008 ,  F01N2560/05 ,  F01N2560/12 ,  G01N15/0606 ,  Y02T10/47

    Abstract: The invention relates to a particulate matter measuring device, and effectively increases the number of capacitors formed between electrodes by optimizing the arrangement of the electrodes. The particulate matter measuring device includes: a diesel particulate filter (DPF) (16) in which the upstream side and the downstream side openings of multiple cells partitioned by porous partition walls are alternately plugged; a pair of first electrodes (A) received in a pair of first electrode cells (2) arranged diagonally with a central cell (1) therebetween; a pair of second electrodes (B) received in a pair of second electrode cells (3) arranged diagonally with the central cell (1) therebetween; a first connecting member (A1) for connecting the first electrodes (A) to each other; a second connecting member (B1) for connecting the second electrodes (B) to each other; and a particulate matter (PM) accumulation amount calculating unit (21, 22) that calculates an amount of PM trapped in the DPF (16) on the basis of capacitance between the electrodes (A, B). The four cells (4) which are adjacent to each other around the partition walls of the central cell (1) and are sandwiched between the first electrode cells (2) and the second electrode cells (3) are used as measurement cells.

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