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13. 发明公开

EP2161436A1 Internal combustion engine with supercharger controller and exhaust choke valve controller 有权
标题翻译： Verbrennungsmotor mit Ladersteuerung und Abgasdrosselventilsteuerung
公开(公告)号：EP2161436A1
公开(公告)日：2010-03-10
申请号：EP09166806.1
申请日：2009-07-30
申请人： Honda Motor Co., Ltd.
发明人： Haga, Hisao , Umeda, Tadashi , TAJIRI, Kenichi
IPC分类号： F02D41/00 , F02D41/14 , F02D41/02
CPC分类号： F02D41/0007 , F01N3/2006 , F01N2240/36 , F02D41/024 , F02D41/1446 , F02D41/149 , F02D2041/1419 , F02D2200/0406 , Y02T10/144 , Y02T10/26
摘要： An internal combustion engine is provided with an exhaust turbocharger 10, a catalytic converter 7 and an exhaust choke valve 8. The catalytic converter 7 is heated rapidly to a target temperature by controlling the opening of the exhaust choke valve 8, and a high boost pressure is ensured to improve the operating performance of the internal combustion engine. A supercharger controller C2 controls the vane position of variable vanes 13 included in the exhaust turbocharger 10 on the basis of pressure difference between a target boost pressure Po and an actual boost pressure P. A exhaust choke valve controller C3 includes a temperature-regulating opening setting unit 51 which sets a temperature-regulating opening Dt for the exhaust choke valve 8 on the basis of the temperature difference AT between the actual temperature T and a target temperature To at which the catalytic converter 7 is activated. The exhaust choke valve controller C3 adjusts the opening of the exhaust choke valve 8 to a temperature-regulating opening Dt greater than a reference opening for the exhaust choke valve 8 to raise the temperature of the catalytic converter 7 when the actual temperature T is lower than the target temperature To and the variable vanes 13 are not at a minimum vane position for increasing the boost pressure.
摘要翻译：内燃机设置有排气涡轮增压器10，催化转换器7和排气阻流阀8.通过控制排气阻流阀8的开度，催化转换器7被快速加热到目标温度，并且高的增压压力确保提高内燃机的运行性能。增压器控制器C2基于目标增压压力Po和实际增压压力P之间的压力差来控制包括在排气涡轮增压器10中的可变叶片13的叶片位置。排气阻风阀控制器C3包括温度调节开度设定基于实际温度T和催化转化器7启动的目标温度To之间的温度差ΔT，设置排气阻塞阀8的温度调节开度Dt的单元51。排气阻风阀控制器C3将排气阻风门8的开度调节到比排气阻塞阀8的基准开度大的温度调节开度Dt，以在实际温度T低于时提高催化转化器7的温度目标温度To和可变叶片13不处于用于增加增压压力的最小叶片位置。

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