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1.发明授权公开(公告)号：EP2706207B1
公开(公告)日：2018-05-30
申请号：EP11826104.9
申请日：2011-07-14
Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
Inventor： BISAIJI, Yuki , YOSHIDA, Kohei , INOUE, Mikio , UMEMOTO, Kazuhiro
CPC classification number: F01N3/0871 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/106 , F01N3/2073 , F01N11/007 , F01N13/009 , F01N2240/30 , F01N2550/05 , F01N2560/025 , F01N2560/14 , F01N2610/03 , F01N2900/0418 , F01N2900/1402 , Y02C20/10 , Y02T10/47
Abstract: In an internal combustion engine, inside of an engine exhaust passage, an upstream side air-fuel ratio sensor (23), a hydrocarbon feed valve (15), an exhaust purification catalyst (13), and a downstream side air-fuel ratio sensor (24) are arranged in this order from the upstream. At the time of engine operation, the injection amount of hydrocarbons from the hydrocarbon feed valve (15) is controlled based on the air-fuel ratio detected by the upstream side air-fuel ratio sensor (23) and the downstream side air-fuel ratio sensor (24) so that the amplitude of change of the concentration of hydrocarbons which flow into the exhaust purification catalyst (13) becomes within a predetermined range of amplitude.
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公开(公告)号：EP3037634B1
公开(公告)日：2018-05-09
申请号：EP15201695.2
申请日：2015-12-21
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： MATSUMOTO, Arifumi , KIDOKORO, Toru , HAGIMOTO, Taiga , OGISO, Makoto , FURUI, Kenji
CPC classification number: F01N11/002 , F01N3/035 , F01N3/0814 , F01N3/0821 , F01N3/2066 , F01N3/208 , F01N9/00 , F01N11/00 , F01N2250/02 , F01N2550/04 , F01N2560/08 , F01N2900/0418 , F01N2900/0422 , F01N2900/1402 , F01N2900/1602 , F01N2900/1606 , Y02T10/24 , Y02T10/47
Abstract: A diagnostic system for an internal combustion engine (1), the diagnostic system includes an electronic control unit (10). The electronic control unit determines that whether a predetermined condition is satisfied. The predetermined condition is a condition under which an amount of PM that separates from a filter is larger than or equal to a predetermined separation amount as a urea water-originated deposit once accumulated in the filter separates in gaseous form. When the electronic control unit determines that the predetermined condition is satisfied, the electronic control unit does not execute a diagnosis of a malfunction in the filter based on a filter differential pressure until a predetermined period elapses from the point in time at which it is determined that the predetermined condition is satisfied.
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公开(公告)号：EP3225800A4
公开(公告)日：2018-04-25
申请号：EP15864186
申请日：2015-11-17
Applicant: ISUZU MOTORS LTD
Inventor： UCHIYAMA TADASHI , HANAWA SATOSHI
CPC classification number: F01N11/00 , F01N3/00 , F01N3/021 , F01N3/023 , F01N3/18 , F01N13/008 , F01N2560/05 , F01N2900/0416 , F01N2900/0418 , F01N2900/08 , F02D45/00 , G01N15/06 , G01N27/22
Abstract: Provided are a low cost diagnostic device and a sensor capable of detecting functional failure and deterioration of a PM sensor early. There is provided the diagnostic device for a sensor 10 which is arranged in an exhaust passage 110 of an internal combustion engine 100 and detects a particulate matter amount in exhaust, the diagnostic device including a time-rate-of-change calculation unit 2 which calculates a time rate of change of the particulate matter amount detected by the sensor 10 during a period in which a fuel injection amount of the internal combustion engine 100 is equal to or less than a predetermined injection amount threshold, and an abnormality determination unit 3 which determines an abnormality of the sensor 10 based on the time rate of change of the particulate matter amount calculated by the time-rate-of-change calculation unit 2.
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4.发明授权
公开(公告)号：EP2981692B1
公开(公告)日：2018-02-28
申请号：EP13731488.6
申请日：2013-04-03
Applicant: VOLVO LASTVAGNAR AB , Volvo Truck Corporation
Inventor： IOJOIU, Eduard Emil , POURRET, Raphaël , PETERSSON, Martin , HÄGGENDAL, Björn , DAHL, Johan
CPC classification number: F01N3/2006 , F01N3/023 , F01N3/0231 , F01N3/0232 , F01N3/027 , F01N3/035 , F01N3/103 , F01N3/2066 , F01N9/002 , F01N9/005 , F01N13/009 , F01N2240/16 , F01N2900/0412 , F01N2900/0418 , F01N2900/0422 , F01N2900/0601 , F01N2900/0602 , F01N2900/08 , F01N2900/1404 , F01N2900/1602 , F01N2900/1606 , F01N2900/1621 , F02D41/029 , F02D41/1467 , F02D2041/1433 , F02D2200/0812 , Y02T10/47
Abstract: A process for regenerating an exhaust gas after-treatment device adapted to be fitted in an exhaust line of an internal combustion engine arrangement, wherein the exhaust gas after-treatment device comprises a particle filter, characterized in that the process comprising the steps of : a) setting the temperature of the exhaust gases at the particle filter within a first temperature range comprised between 420 and 550 degrees Celsius; b) maintaining the temperature of the exhaust gases at the particle filter at the first temperature range during a first period of time; c) after the first period of time, further gradually increasing the temperature at the particle filter to a second temperature range which is over 550° degrees Celsius. The temperature at the particle filter is increased at a controlled rate of temperature increase over time. The temperature at the particle filter is increased at a rate of temperature increase over time which decreases over time.
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公开(公告)号：EP3141717A4
公开(公告)日：2017-12-20
申请号：EP15789922
申请日：2015-04-28
Applicant: ISUZU MOTORS LTD
Inventor： MINEZAWA MASANOBU , AMAGASAKI SHIN , OOMURA YASUHISA
CPC classification number: F01N3/208 , B01D53/9418 , B01D53/9495 , F01N3/00 , F01N3/08 , F01N3/18 , F01N3/2073 , F01N11/00 , F01N11/007 , F01N13/008 , F01N2550/05 , F01N2560/026 , F01N2610/02 , F01N2610/146 , F01N2900/0416 , F01N2900/0418 , F01N2900/1616
Abstract: An exhaust purification system effectively determines whether malfunction occurs in an NOx sensor when a sensor value of the NOx sensor suddenly increases. The exhaust purification system includes: an SCR (41) that purifies NOx in an exhaust gas using ammonia produced from urea water as a reducing agent; an NOx sensor (22) that acquires the value of the NOx contained in the exhaust gas; an actual-reach-time measurement unit (55) that measures a reach time until the NOx value acquired by the NOx sensor (22) reaches, from a first predetermined determinative NOx value,a second predetermined determinative NOx value, which is higher than the first determinative NOx value; and a sensor-value-increment determination unit (56) that determines that malfunction occurs in the NOx sensor (22) when the reach time measured by the actual-reach-time measurement unit (55) is equal to or shorter than a first predetermined determinative time.
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公开(公告)号：EP3075974B1
公开(公告)日：2017-09-27
申请号：EP16162971.2
申请日：2016-03-30
Applicant: Toyota Jidosha Kabushiki Kaisha
Inventor： TAKAOKA, Kazuya , KIDOKORO, Toru
CPC classification number: B01D46/0095 , B01D46/0057 , B01D46/0086 , F01N3/021 , F01N9/002 , F01N11/00 , F01N2550/04 , F01N2560/05 , F01N2560/12 , F01N2900/0418 , F01N2900/1606 , G01N27/043 , Y02T10/20 , Y02T10/47
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公开(公告)号：EP3051082A4
公开(公告)日：2017-07-19
申请号：EP14849521
申请日：2014-09-26
Applicant: ISUZU MOTORS LTD
Inventor： HANAWA SATOSHI , UCHIYAMA TADASHI , FUJIE HIDEKAZU , NAKADA TERUO , MURASAWA NAOTO
CPC classification number: G01M15/102 , F01N11/00 , F01N2550/04 , F01N2560/05 , F01N2900/0408 , F01N2900/0416 , F01N2900/0418 , F01N2900/0422 , Y02T10/47
Abstract: The present invention aims to determine a failure of a DPF with higher accuracy. A diagnosis device comprises: a diesel particulate filter (DPF) (52) that collects particulate matter (PM) in an exhaust gas; a resistive type PM sensor (20) that is provided at a downstream of the DPF (52) and that detects the amount of the PM from the current flowing through the PM deposited between electrodes (22), and for which regeneration is possible that combusts and eliminates the deposited PM; an actual regeneration interval calculating unit (41) that calculates the actual interval from the completion of the regeneration of the sensor (20) to the start of the next regeneration; a PM slippage amount calculating unit (43) that estimates the amount of PM slippage in the exhaust gas that is slipped through the DPF (52) assuming the DPF (52) being normal; an estimated regeneration interval calculating unit (45) that calculates, on the basis of the PM slippage amount, an estimated interval from the completion of the regeneration of the sensor (20) to the start of the next regeneration; and a DPF failure-normal determining unit (46) that determines whether the DPF (52) has failed or is normal by comparing the actual interval to the estimated interval.
Abstract translation: 本发明旨在以更高的准确度确定DPF的故障。 诊断装置包括：收集排气中的颗粒物质（PM）的柴油颗粒过滤器（DPF）（52） 设置在DPF（52）的下游侧，检测来自流过沉积在电极（22）之间的PM的电流的PM量的电阻式PM传感器（20），能够进行燃烧再生 并消除沉积的PM; 实际再生间隔计算单元（41），其计算从传感器（20）的再生完成到下一次再生的开始的实际间隔; PM推迟量计算单元（43），其假设所述DPF（52）正常时，估计通过所述DPF（52）滑动的排气中的PM滑移量; 估计再生间隔计算单元（45），其基于PM滑移量计算从传感器（20）的再生完成到下一个再生的开始的估计间隔; 以及DPF故障正常判定部（46），其通过将实际区间与估计区间进行比较来判定DPF（52）是否发生故障或正常。
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公开(公告)号：EP3175095A1
公开(公告)日：2017-06-07
申请号：EP15731516.9
申请日：2015-06-20
Applicant: Daimler AG
Inventor： HAN, Zhiping , PHAM, Bryant , KOSIK, Justin , CHAUMETTE, Charles-Benoit
CPC classification number: F01N3/208 , F01N3/2066 , F01N9/00 , F01N11/00 , F01N2550/05 , F01N2560/026 , F01N2610/02 , F01N2900/0418 , F01N2900/1402 , F01N2900/1818 , Y02A50/2325 , Y02T10/24 , Y02T10/47
Abstract: A method and a control assembly for operating an exhaust gas system of a motor vehicle is disclosed. Measuring values are evaluated, which indicate a content of nitrogen oxides in an exhaust gas downstream of a catalytic device. The catalytic device is adapted to diminish the content of nitrogen oxides in the exhaust gas produced by an engine of the motor vehicle. Based on the measuring values a quality of a reducing agent supplied to the catalytic device is assessed. The method includes determining whether reducing agent has been filled into a storage tank. A plurality of measuring values is captured during a predetermined period of time, and a magnitude and a frequency of the plurality of measuring values are taken into account to assess the quality of the reducing agent.
Abstract translation: 这是为了控制废气或选择性催化还原（SCR）系统中使用的还原剂的质量。 存在控制组件10，其在预定时间内测量多个值，该值指示催化装置12下游的NO x或氮氧化物的含量。供应到催化装置的还原剂的质量基于这些评估 值。 首先确定还原剂是否已经填充到储罐16中。然后分析测量值的大小和频率以评估还原剂的质量或浓度。 来自尾气管中NOx传感器的噪音量也用于评估还原剂的质量。 如果噪音很大，则表明还原剂质量差。
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公开(公告)号：EP2441934B1
公开(公告)日：2016-12-07
申请号：EP11184836.2
申请日：2011-10-12
Inventor： Aoki, Hideki , Saoda, Takenori
CPC classification number: F01N11/00 , F01N3/0253 , F01N3/035 , F01N3/106 , F01N9/00 , F01N13/009 , F01N2550/02 , F01N2560/06 , F01N2610/03 , F01N2610/1493 , F01N2900/0418 , F01N2900/08 , F01N2900/1626 , Y02T10/47
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10.发明授权
公开(公告)号：EP2826969B1
公开(公告)日：2016-11-09
申请号：EP14000412.8
申请日：2014-02-05
Applicant: MAN Truck & Bus AG
Inventor： Knauer, Markus , Rothe, Dieter , Pastötter, Christian
CPC classification number: F01N9/005 , F01N3/023 , F01N3/0253 , F01N9/002 , F01N2900/0412 , F01N2900/0418 , F01N2900/0601 , F01N2900/1606 , Y02T10/47
