- 专利标题: Differential pressure valve based boost device inlet pressure optimization
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申请号: US16681354申请日: 2019-11-12
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公开(公告)号: US11092093B2公开(公告)日: 2021-08-17
- 发明人: David Lawrence , Ethan E Bayer , William P Attard , Shu Wang
- 申请人: David Lawrence , Ethan E Bayer , William P Attard , Shu Wang
- 申请人地址: US MI Lake Orion; US MI Lake Orion; US MI Brighton; US MI Rochester Hills
- 专利权人: David Lawrence,Ethan E Bayer,William P Attard,Shu Wang
- 当前专利权人: David Lawrence,Ethan E Bayer,William P Attard,Shu Wang
- 当前专利权人地址: US MI Lake Orion; US MI Lake Orion; US MI Brighton; US MI Rochester Hills
- 代理商 Ralph E Smith
- 主分类号: F02D23/00
- IPC分类号: F02D23/00 ; F02M26/04 ; F02D21/08
摘要:
Techniques for controlling a forced-induction engine having a low pressure cooled exhaust gas recirculation (LPCEGR) system comprise determining a target boost device inlet pressure for each of one or more systems that could require a boost device inlet pressure change as part of their operation and boost device inlet pressure hardware limits for a set of components in the induction system, determining a final target boost device inlet pressure based on the determined sets of target boost device inlet pressures and boost device inlet pressure hardware limits, and controlling a differential pressure (dP) valve based on the final target boost device inlet pressure to balance (i) competing boost device inlet pressure targets of the one or more systems and (ii) the set of boost device inlet pressure hardware limits in order to optimize engine performance and prevent component damage.
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