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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
申请人： ISUZU MOTORS LTD
CPC分类号： 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
摘要： 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：EP2966277B1
公开(公告)日：2017-12-06
申请号：EP14760529.9
申请日：2014-03-05
申请人： Isuzu Motors, Ltd.
发明人： NAGAOKA Daiji , NAKADA Teruo , YUZA Hiroyuki
IPC分类号： F01N3/36 , F01N3/023 , F01N3/08 , F01N3/20 , F01N3/10 , F01N9/00 , F01N11/00 , F01N3/025 , F01N13/00
CPC分类号： F01N9/002 , F01N3/023 , F01N3/0232 , F01N3/0253 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/0885 , F01N3/103 , F01N3/2066 , F01N3/2073 , F01N3/208 , F01N3/36 , F01N9/00 , F01N11/002 , F01N13/009 , F01N2610/02 , F01N2610/03 , F01N2900/1602 , F01N2900/1606 , Y02T10/24 , Y02T10/47
摘要： Provided is a method of controlling an exhaust gas aftertreatment device, which can properly control timing for returning to a rich state after S purge, and timing for spraying urea water after particulate matter (PM) regeneration. A DOC (25), a NOx occlusion reduction catalyst (26), and a DPF (27) are connected to an exhaust pipe (20) of an engine (E), downstream of an exhaust pipe injector (23) provided on the exhaust pipe (20). NOx in the exhaust gas is stored by the NOx occlusion reduction catalyst (26) when an air-fuel ratio is lean. The stored NOx is reduced and purified when the air-fuel ratio is rich. When a prescribed amount of PM has accumulated in the DPF (27), the exhaust gas temperature is raised to perform PM regeneration. The exhaust gas temperature is further raised to perform S purge to purge sulfur stored in the NOx occlusion reduction catalyst (26). The rich condition is prohibited during the PM regeneration period and the S purge period. When the S purge is completed, the rich condition prohibition continues until the difference between the inlet temperature of the DOC (25) and the outlet temperature of the NOx occlusion reduction catalyst (26) becomes equal to or less than a predetermined threshold.
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公开(公告)号：EP3067525B1
公开(公告)日：2017-10-25
申请号：EP16158803.3
申请日：2016-03-04
CPC分类号： F02D41/0235 , F01N3/021 , F01N3/0814 , F01N3/0828 , F01N3/0842 , F01N3/0871 , F01N3/2066 , F01N3/2073 , F01N9/00 , F01N11/00 , F01N2430/06 , F01N2560/025 , F01N2560/05 , F01N2560/20 , F01N2570/14 , F01N2570/18 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： In a failure diagnosis device of an emission control system that utilizes an electrode-based PM sensor (54) to diagnose a failure of a particulate filter (51), an object of the invention is to suppress reduction of accuracy of diagnosis of a failure due to in-cylinder rich control. The failure diagnosis device of the emission control system performs a measurement process. The measurement process includes a sensor recovery process of removing PM depositing between the electrodes of the electrode-based PM sensor (54), a process of starting application of the predetermined voltage to the electrodes of the PM sensor after completion of the sensor recovery process, and a process of obtaining an output value of the PM sensor after elapse of a predetermined time period since the start of application of the predetermined voltage to the electrodes of the PM sensor. The failure diagnosis device diagnoses a failure of the particulate filter, based on an output value of the PM sensor obtained by the measurement process. The failure diagnosis device does not perform the measurement process on prediction that in-cylinder rich control is performed in the predetermined time period.
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公开(公告)号：EP3070281B1
公开(公告)日：2017-09-13
申请号：EP16160713.0
申请日：2016-03-16
CPC分类号： F02D41/0235 , F01N3/021 , F01N3/0842 , F01N3/0871 , F01N3/101 , F01N3/2066 , F01N3/2073 , F01N9/00 , F01N11/00 , F01N2430/06 , F01N2560/025 , F01N2560/05 , F01N2560/20 , F01N2900/1614 , Y02T10/24 , Y02T10/47
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公开(公告)号：EP3194052A1
公开(公告)日：2017-07-26
申请号：EP15751056.1
申请日：2015-07-28
发明人： CREHAN, Gabriel
CPC分类号： B01D53/9477 , B01D53/9418 , B01D53/9422 , B01D2251/2062 , B01D2255/91 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/2066 , F01N3/2073 , F01N3/208 , F01N13/009 , F01N2560/06 , F01N2610/02 , F01N2610/1406 , F01N2900/1622 , F02M26/15 , Y02A50/2325 , Y02T10/24
摘要： Method for treatment of the exhaust gases of an internal combustion (1), comprising: a step of absorbing NOx in the LNT (5), - a step of ammonia production in the LNT (5), a step of supplying the SCR (6) with ammonia produced in the LNT (5), according to the needs estimated by the computer, a step of reduction of the NOx in the SCR (6) by chemical reaction of the NOx with the injected ammonia, the process comprising an additional step of ammonia injection into the SCR (6) when the quantity of ammonia produced in the LNT (5) is deemed insufficient, the ammonia thus injected being pushed into an auxiliary storage container (9) containing a reducing agent comprising ammonia.
摘要翻译： 一种用于处理内燃机（1）的排气的方法，包括：吸收LNT（5）中的NOx的步骤， - LNT（5）中的氨生产步骤，供应SCR ）与根据计算机估计的需要的LNT（5）中产生的氨一起通过NOx与注入的氨的化学反应还原SCR（6）中的NOx的步骤，该方法包括附加步骤 当LNT（5）中产生的氨的量被认为不足时，将氨注入SCR（6）中，将这样注入的氨推入含有包含氨的还原剂的辅助存储容器（9）中。
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46.发明授权
公开(公告)号：EP2821628B1
公开(公告)日：2016-11-02
申请号：EP14172760.2
申请日：2014-06-17
发明人： Englert, Peter , Gorges, Roger
CPC分类号： F01N3/0892 , C25B1/00 , F01N3/02 , F01N3/2073 , F01N5/025 , F01N2240/22 , F01N2240/25 , F01N2240/34 , F01N2570/22 , F01N2610/02 , F02M25/12 , F02M26/05 , F02M26/24 , F02M26/35 , F02M26/44 , Y02P20/129 , Y02T10/121 , Y02T10/16 , Y02T10/166
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47.发明公开FAILURE DIAGNOSIS DEVICE OF EMISSION CONTROL SYSTEM 有权FEHLERDIAGNOSEVORRICHTUNG VON ABGASREINIGUNGSANLAGEN
公开(公告)号：EP3067525A1
公开(公告)日：2016-09-14
申请号：EP16158803.3
申请日：2016-03-04
CPC分类号： F02D41/0235 , F01N3/021 , F01N3/0814 , F01N3/0828 , F01N3/0842 , F01N3/0871 , F01N3/2066 , F01N3/2073 , F01N9/00 , F01N11/00 , F01N2430/06 , F01N2560/025 , F01N2560/05 , F01N2560/20 , F01N2570/14 , F01N2570/18 , F01N2900/1614 , Y02T10/24 , Y02T10/47
摘要： In a failure diagnosis device of an emission control system that utilizes an electrode-based PM sensor (54) to diagnose a failure of a particulate filter (51), an object of the invention is to suppress reduction of accuracy of diagnosis of a failure due to in-cylinder rich control. The failure diagnosis device of the emission control system performs a measurement process. The measurement process includes a sensor recovery process of removing PM depositing between the electrodes of the electrode-based PM sensor (54), a process of starting application of the predetermined voltage to the electrodes of the PM sensor after completion of the sensor recovery process, and a process of obtaining an output value of the PM sensor after elapse of a predetermined time period since the start of application of the predetermined voltage to the electrodes of the PM sensor. The failure diagnosis device diagnoses a failure of the particulate filter, based on an output value of the PM sensor obtained by the measurement process. The failure diagnosis device does not perform the measurement process on prediction that in-cylinder rich control is performed in the predetermined time period.
摘要翻译： 在利用基于电极的PM传感器（54）诊断微粒过滤器（51）的故障的排放控制系统的故障诊断装置中，本发明的目的在于抑制故障诊断的精度降低 以缸内丰富的控制。 排放控制系统的故障诊断装置进行测量处理。 该测量处理包括：在完成传感器恢复处理之后，除去基于电极的PM传感器（54）的电极之间的PM沉积的传感器恢复处理，开始对PM传感器的电极施加预定电压的处理， 以及在从PM传感器的电极开始施加预定电压以后经过预定时间段之后获得PM传感器的输出值的处理。 故障诊断装置基于通过测量处理获得的PM传感器的输出值来诊断微粒过滤器的故障。 故障诊断装置不进行预测中的预定时间内进行缸内浓缩控制的测量处理。
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公开(公告)号：EP3056702A1
公开(公告)日：2016-08-17
申请号：EP16155486.0
申请日：2016-02-12
CPC分类号： F01N11/007 , B01D53/9477 , B01D53/9495 , F01N3/0807 , F01N3/101 , F01N3/2066 , F01N3/2073 , F01N11/00 , F01N13/009 , F01N2430/06 , F01N2550/02 , F01N2560/025 , F01N2560/14 , F01N2610/02 , F01N2900/0408 , F01N2900/0412 , F01N2900/0418 , F01N2900/1402 , F01N2900/1624 , F02D41/0235 , F02D41/0295 , F02D41/1441 , F02D41/1456 , F02D2041/147 , F02D2200/0816 , Y02T10/22 , Y02T10/47
摘要： A deterioration diagnosis device for an exhaust gas purification apparatus which performs inducement processing when the internal combustion engine (1) is operated at a lean air fuel ratio, measures, by means of air fuel ratio sensors, the air fuel ratio of exhaust gas flowing into the SCR catalyst (6) and the air fuel ratio of exhaust gas flowing out from the SCR catalyst (6) during a period while the inducement processing is performed, and diagnoses deterioration of the SCR catalyst (6) based on a difference between the measured values of these sensors, wherein an amount of hydrogen produced by each of a three-way catalyst and an NSR catalyst (5) is estimated based on the deterioration degree thereof, and an air fuel ratio of exhaust gas discharged from the internal combustion engine is feedback-controlled so that the air fuel ratio of the exhaust gas flowing into one of the three-way catalyst and the NSR catalyst (5) in which the hydrogen production amount thus estimated is larger than that in the other becomes a target value.
摘要翻译： 一种废气净化装置的劣化诊断装置，其在内燃机（1）以稀空燃比运转时进行诱导处理，通过空燃比传感器测量流入的排气的空燃比 在进行所述诱导处理的期间内，在所述SCR催化剂（6）和从所述SCR催化剂（6）流出的排气的空燃比之间，根据所述测定值 这些传感器的值，其中基于其劣化程度估计由三元催化剂和NSR催化剂（5）中的每一个产生的氢的量，并且从内燃机排出的排气的空燃比是 反馈控制，使得流入三元催化剂和其中估计的氢产生量较大的NSR催化剂（5）之一的排气的空燃比大于t 在另一方面成为目标价值。
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公开(公告)号：EP3020948A4
公开(公告)日：2016-08-10
申请号：EP13889125
申请日：2013-07-11
申请人： TOYOTA MOTOR CO LTD
发明人： SUZUKI KOTARO
IPC分类号： F02D41/04 , B01D53/94 , F01N3/08 , F01N3/20 , F02D41/02 , F02D41/14 , F02D41/30 , F02D41/40 , F02D45/00
CPC分类号： F02D41/1454 , B01D53/9418 , B01D53/9495 , B01D2251/2062 , B01D2251/208 , F01N3/2073 , F01N11/00 , F01N2610/02 , F02D41/0235 , F02D41/0275 , F02D41/1446 , F02D41/3029 , F02D41/3094 , F02D41/401 , F02D2200/0802 , Y02T10/24 , Y02T10/44 , Y02T10/47
摘要： An exhaust gas purification apparatus of an internal combustion engine includes: an NH 3 generating catalyst which generates NH 3 from NOx and H 2 at a rich air-fuel ratio; an in-cylinder injection valve which injects fuel into a cylinder; and a control apparatus which, when setting a rich air-fuel ratio, sets a timing of fuel injection from the in-cylinder injection valve to a second half of a compression stroke when a temperature of the NH 3 generating catalyst is within a first prescribed range and sets a timing f of fuel injection from the in-cylinder injection valve to a first half of an intake stroke when the temperature of the NH 3 generating catalyst is within a second prescribed range that is a higher temperature range than the first prescribed range.
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公开(公告)号：EP2460990B1
公开(公告)日：2016-08-10
申请号：EP10848629.1
申请日：2010-08-30
发明人： BISAIJI, Yuki , YOSHIDA, Kohei , INOUE, Mikio
CPC分类号： F01N3/2882 , B01D53/9409 , B01D2251/208 , B01D2255/102 , B01D2255/91 , B01D2258/012 , F01N3/0814 , F01N3/0842 , F01N3/0871 , F01N3/2073 , F01N9/00 , F01N13/009 , F01N2240/30 , F01N2240/40 , F01N2510/0684 , F01N2570/24 , F01N2610/146 , Y02T10/24 , Y02T10/47
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