发明授权
- 专利标题： System and method for mode transition for a two-stage series sequential turbocharger
- 专利标题（中）： 两级串联式涡轮增压器的模式转换系统和方法
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申请号： US12474599申请日： 2009-05-29
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公开(公告)号： US08096123B2公开(公告)日： 2012-01-17
- 发明人: Zhiping Liu , Ping Ge , Anupam Gangopadhyay
- 申请人： Zhiping Liu , Ping Ge , Anupam Gangopadhyay
- 专利权人： GM Global Technology Operations LLC
- 当前专利权人： GM Global Technology Operations LLC
- 主分类号： F02B33/44
- IPC分类号： F02B33/44
摘要：
A method of controlling a series turbocharger for an engine and a control system for the same includes a boost determination module determining a first predicted boost pressure for a first position of a variable geometry turbine when a high pressure turbine bypass valve is in an open position. The boost determination module determines a second boost pressure for a second position of the variable geometry when the high pressure turbine bypass valve is in the open position. A desired boost module determines a desired boost. A comparison module determines when the desired boost signal is between the first predicted boost pressure and the second predicted boost pressure. A bypass valve control module closes the high pressure turbine bypass valve when the desired boost signal is between the first predicted boost pressure and the second predicted boost pressure.
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