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Methods and systems for adjusting a flow of gases in a scavenge exhaust gas recirculation system of a split exhaust engine system
Methods and systems for adjusting a flow of gases in a scavenge exhaust gas recirculation system of a split exhaust engine system
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机译:用于调节拆分排气发动机系统的清除废气再循环系统中的气体流动的方法和系统
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摘要
Methods and systems are provided for adjusting operation of a split exhaust engine system based on a total flow of gases through a scavenge exhaust gas recirculation system of the split exhaust engine system. In one example, a method may include setting a cam timing correction based on a difference between a first value and a second value of a flow through an exhaust gas recirculation (EGR) passage, the first value determined based on a first parameter set including a cylinder valve overlap area and the second value determined based on a second parameter set not including the cylinder valve overlap area, and operating at least one of an intake cam and an exhaust cam at a corrected timing using the cam timing correction. In this way, the flow through the EGR passage may be adjusted even without active control of a valve coupled in the EGR passage.
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