公开(公告)号：US06934621B2

公开(公告)日：2005-08-23

申请号：US10627520

申请日：2003-07-25

申请人： Sameer Bhargava ,  Ravishankar Ramamurthy ,  Brian A. Lewallen

发明人： Sameer Bhargava ,  Ravishankar Ramamurthy ,  Brian A. Lewallen

IPC分类号： F02D21/08 ,  F02D23/00 ,  F02D41/00 ,  F02M25/07 ,  B60T7/12

CPC分类号： F02D41/005 ,  F02D41/0007 ,  F02D2200/0406 ,  F02D2200/0408 ,  F02D2200/0414 ,  F02M26/25 ,  F02M26/47 ,  Y02T10/144 ,  Y02T10/47

摘要： A control for an internal combustion engine that includes an exhaust gas recirculation system predicts at least one of the intake manifold temperature in EGR mode or an intake manifold pressure in EGR mode, but preferably both, during Boost mode operation. The predictions are relied upon to calculate an intake manifold critical temperate in EGR, at which condensation would occur. The control then compares the predicted temperate value with the calculated intake manifold critical temperature, and if the predicted value exceeds the calculated temperature, the control commands re-entry into exhaust gas recirculation mode.

摘要翻译： 包括排气再循环系统的内燃机的控制装置在升压模式运行期间预测EGR模式中的进气歧管温度或EGR模式中的进气歧管压力中的至少一个，但优选两者。 依靠这些预测来计算在发生冷凝的EGR中的进气歧管临界温度。 然后，控制将预测的温度值与计算的进气歧管临界温度进行比较，如果预测值超过计算出的温度，则控制命令重新进入废气再循环模式。

公开(公告)号：US06701710B1

公开(公告)日：2004-03-09

申请号：US10241929

申请日：2002-09-11

申请人： William K. Ahrens ,  Brian A. Lewallen

发明人： William K. Ahrens ,  Brian A. Lewallen

IPC分类号： F02B3344

CPC分类号： F02B37/00 ,  F02B3/06 ,  F02B29/0406 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/144

摘要： An internal combustion engine includes an intake manifold supplying charge air to the cylinders. An exhaust manifold conducts exhaust gas away from the cylinders. A turbocharger including a turbine has an exhaust gas inlet connected with the exhaust manifold and also includes a compressor having an air inlet and outlet. The compressor air outlet is connected to the intake manifold to pressurize charge air during high power levels of engine operation. An EGR bypass connected between the turbine exhaust gas inlet and the intake manifold recirculates a portion of the exhaust gases to the cylinders. An intake air bypass adapted to recirculate a portion of compressor outlet air back to the compressor air inlet to reduce compressor outlet pressure and aid EGR flow through the EGR bypass to the cylinders during high power operation of the engine is connected between the compressor air outlet and the compressor air inlet.

摘要翻译： 内燃机包括向气缸供给增压空气的进气歧管。 排气歧管将废气从气缸导出。 包括涡轮的涡轮增压器具有与排气歧管连接的排气入口，并且还包括具有空气入口和出口的压缩机。 压缩机空气出口连接到进气歧管，以在发动机运转的高功率水平期间对增压空气加压。 连接在涡轮排气入口和进气歧管之间的EGR旁通将废气的一部分再循环到气缸。 一种进气空气旁路，其适于使压缩机出口空气的一部分再循环回压缩机空气入口，以减小压缩机出口压力，并且在发动机的大功率运行期间帮助通过EGR旁路通过EGR旁路的EGR流连接在压缩机空气出口和 压缩机进气口。