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1. 发明专利

JP2008038626A Exhaust emission control system for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制系统
公开(公告)号：JP2008038626A
公开(公告)日：2008-02-21
申请号：JP2006210160
申请日：2006-08-01
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OBA TAKAHIRO , TAKIMOTO KATSUSHI , NEGAMI AKIHIKO
IPC分类号： F01N3/08 , F01N3/20
CPC分类号： F01N3/0871 , F01N3/0842 , F01N2610/03 , F02D41/0275 , F02D41/405 , F02D2200/501 , Y02T10/44
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine capable of limiting supply quantity of fuel into exhaust gas in rich spike control and capable of sufficiently reducing oxide stored in a storage reduction type NOx catalyst.
SOLUTION: The system is provided with a rich spike execution means executing rich spike control reducing air fuel ratio of exhaust gas flowing into the storage reduction type NOx catalyst by supplying fuel into exhaust gas when oxide stored in the storage reduction type NOx catalyst is reduced. When fuel injection quantity in the internal combustion engine increases by a predetermined fuel increase quantity or more at an increase rate of a predetermined fuel increase rate or higher (S102, S105), the rich spike execution means executes rich spike control (S108).
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供一种用于内燃机的废气排放控制装置，其能够将富燃料控制中的燃料供给量限制在废气中并且能够充分还原储存在储存还原型NOx催化剂中的氧化物。解决方案：系统具有丰富的尖峰执行装置，其执行丰富的尖峰控制，通过在存储还原型NOx催化剂中存储氧化物时，通过向废气中供应燃料来减少流入储存还原型NOx催化剂的排气的空燃比降低了。当内燃机中的燃料喷射量以预定的燃料增加率或更高的增加速度增加预定的燃料增加量（S102，S105）时，富穗执行装置执行富穗控制（S108）。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008025467A Exhaust emission control system for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制系统
公开(公告)号：JP2008025467A
公开(公告)日：2008-02-07
申请号：JP2006199069
申请日：2006-07-21
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： OBA TAKAHIRO , TAKIMOTO KATSUSHI , NEGAMI AKIHIKO
IPC分类号： F01N3/36 , B01D53/86 , B01D53/94 , F01N3/08 , F01N3/20 , F01N3/28 , F02D41/38 , F02D43/00
CPC分类号： F02D41/0275 , F01N3/0842 , F01N3/0871 , F01N3/2033 , F01N11/002 , F01N2560/06 , F02D41/182 , F02D41/405 , F02D2200/0802 , Y02T10/26 , Y02T10/44 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To recover performance of an exhaust emission control device while preventing fuel from passing through the exhaust emission control device. SOLUTION: When performance of the exhaust emission control device is recovered while quantity of intake air of an internal combustion engine increases (S101, S103), an upper limit value is established in additional quantity of fuel added by a fuel addition valve provided in an exhaust passage (S104). When target fuel supply quantity to be supplied to the exhaust emission control device is greater than the upper limit value (S105), fuel of the upper limit value quantity is added by fuel addition valve and fuel of shortage quantity is injected by an auxiliary fuel injection of the internal combustion engine (S110, S111, S112). COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：为了回收废气排放控制装置的性能，同时防止燃料通过废气排放控制装置。解决方案：当内燃机的进气量增加时废气排放控制装置的性能得到恢复（S101，S103）时，通过设置的燃料添加阀添加的附加燃料量确定上限值在排气通路（S104）中。当提供给废气排放控制装置的目标燃料供给量大于上限值时（S105），通过燃料添加阀添加上限值量的燃料，通过辅助燃料喷射注入不足量的燃料的内燃机（S110，S111，S112）。版权所有（C）2008，JPO＆INPIT

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