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公开(公告)号：EP2585690A1
公开(公告)日：2013-05-01
申请号：EP11797761.1
申请日：2011-05-20
发明人： NISHIZAWA, Toru , YAMAMOTO, Risa
CPC分类号： F01N3/0238 , F01N3/021 , F02D41/029 , F02D41/042 , F02D41/065 , F02D41/1448 , F02D41/405 , F02D2200/0802 , F02M26/05 , F02N11/0829 , F02N2200/026 , Y02T10/48
摘要： An exhaust gas purifying apparatus for a diesel engine includes a diesel particulate filter (DPF) in an exhaust system in the diesel engine. The exhaust gas purifying apparatus is constructed to execute regeneration of the DPF by raising a temperature of the DPF in a case where a predetermined DPF regeneration condition is fulfilled, interrupt the regeneration of the DPF, execute idling stop, automatically restart the diesel engine and then restart the regeneration of the DPF, and when shifting to the idling operation is carried out during regeneration of the DPF, delay execution of the idling stop until a temperature of the DPF at a time at which t20he idling stop is started becomes not less than a temperature of the DPF at a time at which shifting to an idling operation is carried out even in a case where the predetermined idling stop condition is fulfilled.
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公开(公告)号：EP2587010A1
公开(公告)日：2013-05-01
申请号：EP11797955.9
申请日：2011-05-26
发明人： YAMAMOTO, Risa
CPC分类号： B01D46/0063 , B01D46/42 , B01D46/46 , B01D2279/30 , F01N3/0842 , F01N3/103 , F01N9/002 , F01N13/009 , F01N2430/085 , F02B3/06 , F02B37/22 , F02D17/04 , F02D41/029 , F02D41/062 , F02D41/405 , F02M26/05 , F02M26/15 , F02N11/0814 , Y02T10/44 , Y02T10/47
摘要： In a case where DPF regeneration is restarted after an engine is automatically restarted from interruption of the DPF regeneration, DPF regeneration control is corrected so as to suppress temperature rise due to the DPF regeneration in consideration of an increment in oxygen concentration in exhaust gas which is caused due to the interruption of the DPF regeneration. Specifically, restart of the DPF regeneration is prohibited during a predetermined prohibition time ΔT1 from a time t1 at which the engine is automatically restarted, and a post injection amount of fuel is corrected to the side of reduction.
摘要翻译： 在发动机从DPF再生的中断自动重新启动之后重新开始DPF再生的情况下，对DPF再生控制进行修正，以便考虑到排气中的氧浓度的增加而抑制由于DPF再生引起的温度升高 由于DPF再生的中断引起的。 具体地说，在从发动机自动重新启动的时间t1开始的预定禁止时间“T1”内将燃料的后喷射量修正到减速侧被禁止重新开始DPF再生。
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3.发明公开
公开(公告)号：EP2257699A1
公开(公告)日：2010-12-08
申请号：EP09713675.8
申请日：2009-02-17
发明人： YAMAMOTO, Risa
CPC分类号： B01D53/945 , B01D53/9495 , B01D2255/1021 , B01D2255/1023 , B01D2255/1025 , B01D2255/2042 , B01D2255/91 , B01D2257/302 , F01N3/035 , F01N3/0814 , F01N3/0842 , F01N3/0885 , F01N9/00 , F01N13/009 , F01N2550/03 , F01N2900/1612 , F02D41/0245 , F02D41/028 , F02D2200/0625 , F02D2200/0818 , Y02A50/2324 , Y02T10/22 , Y02T10/24 , Y02T10/26 , Y02T10/47
摘要： An internal combustion engine exhaust gas cleaning apparatus is basically provided with a NOx trapping catalytic converter, a sulfur poisoning amount estimating section and a sulfur poisoning removal section. The NOx trapping catalytic converter is arranged in an exhaust passage to trap NOx contained in an exhaust gas flowing through the exhaust passage when an air-fuel ratio of the exhaust gas is lean and to release trapped NOx when an air-fuel ratio of the exhaust gas is rich. The sulfur poisoning amount estimating section estimates an estimated sulfur poisoning amount of sulfur poisoning of the NOx trapping catalytic converter based on a fuel consumption amount and an oil consumption amount. The sulfur poisoning removal section raises a temperature of the NOx trapping catalytic converter to a sulfur poisoning removal temperature based on the estimated sulfur poisoning amount to remove sulfur poisoning from the NOx trapping catalytic converter.
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4.发明公开EXHAUST PURIFICATION DEVICE FOR AN INTERNAL COMBUSTION ENGINE 审中-公开ABGASREINIGERFÜREINEN VERBRENNUNGSMOTOR
公开(公告)号：EP2489863A1
公开(公告)日：2012-08-22
申请号：EP10823377.6
申请日：2010-10-12
发明人： YAMAMOTO, Risa
CPC分类号： F01N3/0871 , B01D53/9409 , B01D2255/91 , F01N3/0814 , F01N11/005 , F01N13/009 , F01N2900/1602 , F02B37/00 , F02D41/025 , F02D41/0275 , F02D41/405 , F02D2200/0404 , F02D2200/0804 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： In order to regenerate an NOx trap catalyst 11 under rich spike control, an ECU 15 calculates an extent of a predicted temperature increase Δ T_ LNThos2 at the NOx trap catalyst 11 undergoing regeneration based upon operating conditions of an internal combustion engine 1, a degree of opening of an intake throttle 7 and control parameters t λ 1 , t λ 2 pertaining to post-injection via a fuel injector 4. Catalyst temperature control corresponding to any change in the operating conditions of the internal combustion engine 1, occurring while regeneration of the NOx trap catalyst 11 is in progress, is achieved by adjusting values taken for the control parameters t λ 1 , t λ 2 if the predicted temperature rise Δ T_LNThos2 is beyond an allowable range Δ T_LNT_cap.
摘要翻译： 为了在丰富尖峰控制下再生NOx捕集催化剂11，ECU15计算出根据内燃机1的运转条件进行再生的NOx捕集催化剂11的预测温度上升“T_ LNThos2”的程度， 进气节气门7的打开和经由燃料喷射器4的后喷射的控制参数t»1，t»2。对应于内燃机1的运行状态的任何变化的催化剂温度控制， NOx捕集催化剂11正在进行中，如果预测温度升高“T_LNThos2超过允许范围”T_LNT_cap，则通过调整控制参数t»1，t»2所取的值来实现。
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