发明申请
- 专利标题： EXHAUST GAS RECIRCULATION SYSTEM FOR INTERNAL COMBUSTION ENGINE AND METHOD FOR CONTROLLING THE SAME
- 专利标题（中）： 用于内燃机的排气再循环系统及其控制方法
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申请号： US12298788申请日： 2007-11-06
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公开(公告)号： US20090223221A1公开(公告)日： 2009-09-10
- 发明人: Tomomi Onishi , Shigeki Nakayama , Teruhiko Miyake , Masahiro Nagae , Hajime Shimizu , Isao Matsumoto , Tomoyuki Ono , Hiroki Murata , Akira Yamashita , Hiroyuki Haga
- 申请人： Tomomi Onishi , Shigeki Nakayama , Teruhiko Miyake , Masahiro Nagae , Hajime Shimizu , Isao Matsumoto , Tomoyuki Ono , Hiroki Murata , Akira Yamashita , Hiroyuki Haga
- 优先权： JP2006-300295 20061106
- 国际申请： PCT/IB07/03365 WO 20071106
- 主分类号： F02D23/00
- IPC分类号： F02D23/00 ; F02M25/07
摘要：
An exhaust gas recirculation system includes a high-pressure EGR unit; a low-pressure EGR unit; a high-pressure EGR valve; a low-pressure EGR valve; and an EGR control unit that adjusts the opening amount of the high-pressure EGR valve to a required value for achieving the target EGR rate based on the characteristics of the exhaust gas in the low-pressure EGR passage before the operation mode is changed, and that maintains the required value during a period from when the operation mode is changed until when the low-pressure EGR gas is changed to the exhaust gas discharged from the internal combustion engine in the post-change operation mode.
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