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公开(公告)号：US08464522B2
公开(公告)日：2013-06-18
申请号：US12671085
申请日：2008-10-27
IPC分类号： F01N3/00
CPC分类号： F02D41/0255 , F02D41/029 , Y02T10/22 , Y02T10/26
摘要： An exhaust passage of an internal combustion engine is provided with an upstream side three-way catalyst capable of purifying exhaust gas and a particulate filter (PM filter) for trapping particulate matter PM contained in exhaust gas. Catalyst warm-up control is exercised for the purpose of warming up mainly the upstream side three-way catalyst at cold start. Filter regeneration control for removing the particulate matter PM accumulating on the particulate filter from the filter is exercised at the cold start after the catalyst warm-up control is exercised.
摘要翻译： 内燃机的排气通路设置有能够净化排气的上游侧三通催化剂和用于捕集废气中所含的颗粒物质PM的微粒过滤器（PM过滤器）。 催化剂预热控制主要用于在冷启动时预热上游侧三元催化剂。 在进行催化剂预热控制之后的冷启动时，进行从过滤器中除去颗粒物过滤器上累积的颗粒物质PM的过滤器再生控制。
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公开(公告)号：US08266898B2
公开(公告)日：2012-09-18
申请号：US12674833
申请日：2008-09-18
CPC分类号： F02D41/029 , F02D41/123 , F02D41/22 , F02D2200/0804 , F02D2200/0812
摘要： An internal combustion engine is provided that performs stoichiometric burn operation under control for providing a stoichiometric air-fuel ratio as basic control for an air-fuel ratio. A particulate filter (PM filter) is provided in an exhaust passage of the engine to trap particulate matter PM contained in exhaust gas. If it is judged that the PM filter will have excessively elevated temperature, fuel cut is prohibited during deceleration. Otherwise, before the prohibition of the fuel cut, the air-fuel ratio of exhaust gas is controlled so that the atmosphere of the PM filter is brought into an atmosphere slightly leaner than the stoichiometric air-fuel ratio.
摘要翻译： 提供一种内燃机，其在控制下进行化学计量燃烧操作，以提供理论空燃比作为空燃比的基本控制。 在发动机的排气通道中设置有微粒过滤器（PM过滤器），以捕集废气中所含的颗粒物质PM。 如果判断为PM过滤器的温度过高，减速时禁止燃油切断。 否则，在禁止燃料切断之前，控制废气的空燃比，使得PM过滤器的气氛进入比理论空燃比略微稀释的气氛中。
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公开(公告)号：US20100205942A1
公开(公告)日：2010-08-19
申请号：US12674833
申请日：2008-09-18
CPC分类号： F02D41/029 , F02D41/123 , F02D41/22 , F02D2200/0804 , F02D2200/0812
摘要： An internal combustion engine is provided that performs stoichiometric burn operation under control for providing a stoichiometric air-fuel ratio as basic control for an air-fuel ratio. A particulate filter (PM filter) is provided in an exhaust passage of the engine to trap particulate matter PM contained in exhaust gas. If it is judged that the PM filter will have excessively elevated temperature, fuel cut is prohibited during deceleration. Otherwise, before the prohibition of the fuel cut, the air-fuel ratio of exhaust gas is controlled so that the atmosphere of the PM filter is brought into an atmosphere slightly leaner than the stoichiometric air-fuel ratio.
摘要翻译： 提供一种内燃机，其在控制下进行化学计量燃烧操作，以提供理论空燃比作为空燃比的基本控制。 在发动机的排气通道中设置有微粒过滤器（PM过滤器），以捕集废气中所含的颗粒物质PM。 如果判断为PM过滤器的温度过高，减速时禁止燃油切断。 否则，在禁止燃料切断之前，控制废气的空燃比，使得PM过滤器的气氛进入比理论空燃比略微稀释的气氛中。
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公开(公告)号：US20100192543A1
公开(公告)日：2010-08-05
申请号：US12671085
申请日：2008-10-27
CPC分类号： F02D41/0255 , F02D41/029 , Y02T10/22 , Y02T10/26
摘要： An exhaust passage of an internal combustion engine is provided with an upstream side three-way catalyst capable of purifying exhaust gas and a particulate filter (PM filter) for trapping particulate matter PM contained in exhaust gas. Catalyst warm-up control is exercised for the purpose of warming up mainly the upstream side three-way catalyst at cold start. Filter regeneration control for removing the particulate matter PM accumulating on the particulate filter from the filter is exercised at the cold start after the catalyst warm-up control is exercised.
摘要翻译： 内燃机的排气通路设置有能够净化排气的上游侧三通催化剂和用于捕集废气中所含的颗粒物质PM的微粒过滤器（PM过滤器）。 催化剂预热控制主要用于在冷启动时预热上游侧三元催化剂。 在进行催化剂预热控制之后的冷启动时，进行从过滤器中除去颗粒物过滤器上累积的颗粒物质PM的过滤器再生控制。
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