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公开(公告)号：US07658178B2
公开(公告)日：2010-02-09
申请号：US11759447
申请日：2007-06-07
IPC分类号： F02P5/06
CPC分类号： F02D41/1498 , F02D37/02 , F02D41/062 , F02P5/1555 , Y02T10/46
摘要： Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.
摘要翻译： 燃烧发动机的点火正时可以通过确定当前发动机运行的粗糙度来进行控制，将所确定的粗糙度与控制粗糙度进行比较，以确定所确定的粗糙度是否在控制粗糙度的阈值极限内，并且随后改变点火正时 燃料输送事件作为确定的粗糙度和控制粗糙度之间的差异的函数。 优选地，至少当确定的粗糙度不在阈值限度内时，点火正时改变，尽管在改变点火正时时可以考虑其他因素。
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公开(公告)号：US20080302331A1
公开(公告)日：2008-12-11
申请号：US11759447
申请日：2007-06-07
IPC分类号： F02P5/00
CPC分类号： F02D41/1498 , F02D37/02 , F02D41/062 , F02P5/1555 , Y02T10/46
摘要： Ignition timing for a combustion engine may be controlled by determining the roughness of current engine operation, comparing the determined roughness with a control roughness to determine if the determined roughness is within a threshold limit of the control roughness, and changing the ignition timing in a subsequent fuel delivery event as a function of the difference between the determined roughness and the control roughness. Preferably, the ignition timing is changed at least when the determined roughness is not within the threshold limit, although other factors may be taken into account when changing the ignition timing.
摘要翻译： 燃烧发动机的点火正时可以通过确定当前发动机运行的粗糙度来进行控制，将所确定的粗糙度与控制粗糙度进行比较，以确定所确定的粗糙度是否在控制粗糙度的阈值极限内，并且随后改变点火正时 燃料输送事件作为确定的粗糙度和控制粗糙度之间的差异的函数。 优选地，至少当确定的粗糙度不在阈值限度内时，点火正时改变，尽管在改变点火正时时可以考虑其他因素。
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3.发明授权公开(公告)号：US09429090B2
公开(公告)日：2016-08-30
申请号：US12132685
申请日：2008-06-04
CPC分类号： F02D41/1446 , F01N9/00 , F01N9/005 , F01N2430/02 , F01N2900/1602 , F02D41/0082 , F02D41/1443 , Y02T10/47
摘要： A method of estimating temperature of a catalyst associated with a cylinder bank of a multi-displacement internal combustion engine having multiple cylinder banks associated with multiple catalysts. A temperature estimate of the catalysts associated with the multiple cylinder banks is set substantially equal to a base model temperature. Deactivation of a cylinder bank of the multiple cylinder banks is determined, and a catalyst cooldown correction is identified for the catalyst associated with the deactivated cylinder bank from a catalyst cooldown model including time elapsed since deactivation of the cylinder bank. The catalyst cooldown correction is applied to the temperature estimate of the catalyst associated with the deactivated cylinder bank to update the temperature estimate of the catalyst.
摘要翻译： 估计与具有与多个催化剂相关联的多个气缸组的多排量内燃机的气缸组相关联的催化剂的温度的方法。 与多个气缸组相关联的催化剂的温度估计被设定为基本模型温度。 确定多个气缸组的气缸组的失活，并且从催化剂冷却模型中识别与停用气缸组相关联的催化剂的催化剂冷却校正，该催化剂冷却模型包括从气缸组停止起经过的时间。 催化剂冷却校正应用于与停用的气缸组相关联的催化剂的温度估计，以更新催化剂的温度估计。
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4.发明申请公开(公告)号：US20090301060A1
公开(公告)日：2009-12-10
申请号：US12132685
申请日：2008-06-04
IPC分类号： F02D45/00
CPC分类号： F02D41/1446 , F01N9/00 , F01N9/005 , F01N2430/02 , F01N2900/1602 , F02D41/0082 , F02D41/1443 , Y02T10/47
摘要： A method of estimating temperature of a catalyst associated with a cylinder bank of a multi-displacement internal combustion engine having multiple cylinder banks associated with multiple catalysts. A temperature estimate of the catalysts associated with the multiple cylinder banks is set substantially equal to a base model temperature. Deactivation of a cylinder bank of the multiple cylinder banks is determined, and a catalyst cooldown correction is identified for the catalyst associated with the deactivated cylinder bank from a catalyst cooldown model including time elapsed since deactivation of the cylinder bank. The catalyst cooldown correction is applied to the temperature estimate of the catalyst associated with the deactivated cylinder bank to update the temperature estimate of the catalyst.
摘要翻译： 估计与具有与多个催化剂相关联的多个气缸组的多排量内燃机的气缸组相关联的催化剂的温度的方法。 与多个气缸组相关联的催化剂的温度估计被设定为基本模型温度。 确定多个气缸组的气缸组的失活，并且从催化剂冷却模型中识别与停用气缸组相关联的催化剂的催化剂冷却校正，该催化剂冷却模型包括从气缸组停止起经过的时间。 催化剂冷却校正应用于与停用的气缸组相关联的催化剂的温度估计，以更新催化剂的温度估计。
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