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公开(公告)号：US20050229588A1
公开(公告)日：2005-10-20
申请号：US11155414
申请日：2005-06-17
CPC分类号： F01N3/0842 , F01N11/007 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D2200/0814 , F02D2200/0816 , F02P5/151 , F02P5/1514 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.
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公开(公告)号：US06964160B2
公开(公告)日：2005-11-15
申请号：US10797845
申请日：2004-03-09
IPC分类号： F01N3/08 , F01N3/20 , F01N11/00 , F01N13/02 , F02D37/02 , F02D41/02 , F02D41/06 , F02D41/12 , F02D41/14 , F02D41/24 , F02M25/08 , F02P5/15 , F01N3/00
CPC分类号： F01N3/20 , F01N3/0814 , F01N3/0842 , F01N11/007 , F01N13/0097 , F01N2430/00 , F01N2430/06 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D41/0295 , F02D41/062 , F02D41/126 , F02D41/1441 , F02D41/1446 , F02D41/1479 , F02D41/1487 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02M25/08 , F02P5/1502 , F02P5/151 , F02P5/1514 , Y02A50/2322 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.
摘要翻译： 本发明涉及一种通过基于储存在催化剂中的氧化剂的实际量的估计来调整发动机空燃比来优化汽车催化转化器的效率的新方法和系统。 通过响应于储存在催化剂中的氧化剂的当前量的估计和催化剂的总可用氧化剂储存容量的估计，通过控制发动机火花来调节催化剂的氧化剂储存容量。 为了保持发动机转速，尽管发动机火花调节，发动机空气质量也被调整。
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公开(公告)号：US06453662B1
公开(公告)日：2002-09-24
申请号：US09681875
申请日：2001-06-20
IPC分类号： F01N300
CPC分类号： F02D41/1479 , F01N3/0814 , F01N13/0097 , F01N2570/16 , F02D41/0295 , F02D41/1441 , F02D41/1446 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. To do so, the invented system estimates an amount of oxidants stored in the catalyst. The amount of oxidants stored is estimated by determining an amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons being produced by the engine. Based thereon, a change in oxidant storage in the catalyst is calculated. The estimate of the amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons is adjusted based on a feedback parameter.
摘要翻译： 本发明涉及一种通过基于储存在催化剂中的氧化剂的实际量的估计来调整发动机空燃比来优化汽车催化转化器的效率的新方法和系统。 为此，本发明的系统估计存储在催化剂中的氧化剂的量。 通过确定可用于催化剂储存的氧化剂的量或氧化由发动机生产的烃所需的氧化剂的量来估计存储的氧化剂的量。 基于此，计算催化剂中氧化剂储存的变化。 基于反馈参数调整可用于由催化剂储存或氧化烃所需的氧化剂的量的估计。
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4.发明授权System and method for determining set point location for oxidant-based engine air/fuel control strategy 有权用于确定基于氧化剂的发动机空气/燃料控制策略的设定点位置的系统和方法公开(公告)号：US06912844B2
公开(公告)日：2005-07-05
申请号：US10603222
申请日：2003-06-24
IPC分类号： F01N3/08 , F01N3/20 , F01N11/00 , F01N13/02 , F02D37/02 , F02D41/02 , F02D41/06 , F02D41/12 , F02D41/14 , F02D41/24 , F02M25/08 , F02P5/15 , F01N3/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/20 , F01N11/007 , F01N13/0097 , F01N2430/00 , F01N2430/06 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D41/0295 , F02D41/062 , F02D41/126 , F02D41/1441 , F02D41/1446 , F02D41/1479 , F02D41/1487 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02M25/08 , F02P5/1502 , F02P5/151 , F02P5/1514 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.
摘要翻译： 本发明涉及一种通过基于储存在催化剂中的氧化剂的实际量的估计来调整发动机空燃比来优化汽车催化转化器的效率的新方法和系统。 通过建立氧化剂设定点位置，即催化剂中位于该系统控制氧化剂储存器的位置来确定催化剂的可用氧化剂储存容量。 基于不同电位设定点位置的温度和不同电位设定点位置的劣化程度以及排放控制装置系统的氧化剂存储容量建立氧化剂设定点。
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公开(公告)号：US06497093B1
公开(公告)日：2002-12-24
申请号：US09681870
申请日：2001-06-20
IPC分类号： F01N300
CPC分类号： F02D41/0295 , F01N3/20 , F01N2430/06 , F02D41/1441 , F02D41/1456 , F02D41/187 , F02D2200/0602 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02P5/1502
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The claimed invention comprises adjusting an air/fuel ratio in the cylinders of an internal combustion engine to maintain a desired level of oxidants in the catalytic converter. At various times, the actual amount of oxidants stored in the catalytic converter is determined. The actual oxidant amount is compared to a target amount of oxidants to be stored in the catalytic converter. The air/fuel ratio in the cylinders is adjusted based on the magnitude of the difference between the actual oxidant amount and the target oxidant amount to prevent NOx and hydrocarbon breakthrough.
摘要翻译： 本发明涉及一种用于优化汽车催化转化器的效率的新方法和系统。 所要求保护的发明包括调节内燃机的气缸中的空气/燃料比以维持催化转化器中所需的氧化剂含量。 在不同时间，确定储存在催化转化器中的氧化剂的实际量。 将实际的氧化剂量与待储存在催化转化器中的氧化剂的目标量进行比较。 基于实际氧化剂量与目标氧化剂量之间的差异的大小来调节气缸中的空气/燃料比，以防止NOx和烃的突破。
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公开(公告)号：US07076943B2
公开(公告)日：2006-07-18
申请号：US11127444
申请日：2005-05-11
IPC分类号： F01N3/00
CPC分类号： F01N3/0814 , F01N3/0842 , F01N3/20 , F01N11/007 , F01N13/0097 , F01N2430/00 , F01N2430/06 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D41/0295 , F02D41/062 , F02D41/126 , F02D41/1441 , F02D41/1446 , F02D41/1479 , F02D41/1487 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02M25/08 , F02P5/1502 , F02P5/151 , F02P5/1514 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. An available oxidant storage capacity of the catalyst is determined by establishing an oxidant set point location, i.e., a location in the catalyst about which the system controls the oxidant storage. The oxidant set point is established based on the temperatures of the different potential set point locations and the levels of deterioration of the different potential set point locations, as well as the oxidant storage capacity of the emission control device system.
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公开(公告)号：US06964159B2
公开(公告)日：2005-11-15
申请号：US10262322
申请日：2002-10-02
CPC分类号： F02D41/0295 , F01N3/20 , F01N2430/06 , F02D41/1441 , F02D41/1456 , F02D41/187 , F02D2200/0602 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02P5/1502
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The claimed invention comprises adjusting an air/fuel ratio in the cylinders of an internal combustion engine to maintain a desired level of oxidants in the catalytic converter. At various times, the actual amount of oxidants stored in the catalytic converter is determined. The actual oxidant amount is compared to a target amount of oxidants to be stored in the catalytic converter. The air/fuel ratio in the cylinders is adjusted based on magnitude of the difference between the actual oxidant amount and the target oxidant amount to prevent NOx and hydrocarbon breakthrough.
摘要翻译： 本发明涉及一种用于优化汽车催化转化器的效率的新方法和系统。 所要求保护的发明包括调节内燃机的气缸中的空气/燃料比以维持催化转化器中所需的氧化剂含量。 在不同时间，确定储存在催化转化器中的氧化剂的实际量。 将实际的氧化剂量与待储存在催化转化器中的氧化剂的目标量进行比较。 基于实际氧化剂量和目标氧化剂量之差的大小来调节气缸中的空气/燃料比，以防止NOx和烃的突破。
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8.发明授权System and method for determining target oxygen storage in an automotive catalyst 有权用于确定汽车催化剂中目标氧气储存的系统和方法公开(公告)号：US06769243B2
公开(公告)日：2004-08-03
申请号：US10167154
申请日：2002-06-10
IPC分类号： F01N300
CPC分类号： F01N3/20 , F01N3/0814 , F01N3/0842 , F01N11/007 , F01N13/0097 , F01N2430/00 , F01N2430/06 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D41/0295 , F02D41/062 , F02D41/126 , F02D41/1441 , F02D41/1446 , F02D41/1479 , F02D41/1487 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501 , F02M25/08 , F02P5/1502 , F02P5/151 , F02P5/1514 , Y02A50/2322 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter. The invention comprises adjusting an air/fuel ratio in the cylinders of an internal combustion engine to maintain the amount of oxidants stored in the catalyst at or near an oxidant target value. The oxidant target value is either a pre-determined constant value or a dynamically-determined value that is calculated based on engine operating conditions. The air/fuel ratio in the cylinders is adjusted based on the magnitude of the difference between the actual oxidant amount and the target oxidant amount to prevent NOx and hydrocarbon breakthrough.
摘要翻译： 本发明涉及一种用于优化汽车催化转化器的效率的新方法和系统。 本发明包括调整内燃机的气缸中的空气/燃料比，以将储存在催化剂中的氧化剂的量保持在或接近氧化剂目标值。 氧化剂目标值是基于发动机操作条件计算的预定常数值或动态确定值。 基于实际氧化剂量与目标氧化剂量之间的差异的大小来调节气缸中的空气/燃料比，以防止NOx和烃的突破。
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公开(公告)号：US06751947B2
公开(公告)日：2004-06-22
申请号：US10167275
申请日：2002-06-10
IPC分类号： F01N300
CPC分类号： F02D41/1479 , F01N3/0814 , F01N13/0097 , F01N2570/16 , F02D41/0295 , F02D41/1441 , F02D41/1446 , F02D41/187 , F02D41/2422 , F02D2200/0404 , F02D2200/0802 , F02D2200/0814 , F02D2200/0816 , F02D2200/501
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. To do so, the invented system estimates an amount of oxidants stored in the catalyst. The amount of oxidants stored is estimated by determining an amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons being produced by the engine. Based thereon, a change in oxidant storage in the catalyst is calculated. The estimate of the amount of oxidants that are available for storage by the catalyst or that are needed to oxidize hydrocarbons is adjusted based on a feedback parameter.
摘要翻译： 本发明涉及一种通过基于储存在催化剂中的氧化剂的实际量的估计来调整发动机空燃比来优化汽车催化转化器的效率的新方法和系统。 为此，本发明的系统估计存储在催化剂中的氧化剂的量。 通过确定可用于催化剂储存的氧化剂的量或氧化由发动机生产的烃所需的氧化剂的量来估计存储的氧化剂的量。 基于此，计算催化剂中氧化剂储存的变化。 基于反馈参数调整可用于由催化剂储存或氧化烃所需的氧化剂的量的估计。
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公开(公告)号：US06993899B2
公开(公告)日：2006-02-07
申请号：US09681874
申请日：2001-06-20
IPC分类号： F01N3/00
CPC分类号： F01N3/0842 , F01N11/007 , F01N2550/02 , F01N2570/16 , F02D37/02 , F02D41/0275 , F02D2200/0814 , F02D2200/0816 , F02P5/151 , F02P5/1514 , Y02T10/46 , Y02T10/47
摘要： The invention relates to a new method and system for optimizing the efficiency of an automotive catalytic converter by adjusting the engine air/fuel ratio based on estimates of the actual amount of oxidants stored in the catalyst. The oxidant storage capacity of the catalyst is adjusted by controlling engine spark in response to an estimate of a current amount of oxidants stored in the catalyst and an estimate of the total available oxidant storage capacity of the catalyst. To maintain engine speed in spite of adjustments to the engine spark, the engine air mass is also adjusted.
摘要翻译： 本发明涉及一种通过基于储存在催化剂中的氧化剂的实际量的估计来调整发动机空燃比来优化汽车催化转化器的效率的新方法和系统。 通过响应于储存在催化剂中的氧化剂的当前量的估计和催化剂的总可用氧化剂储存容量的估计，通过控制发动机火花来调节催化剂的氧化剂储存容量。 为了保持发动机转速，尽管发动机火花调节，发动机空气质量也被调整。
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