发明申请
- 专利标题: METHOD AND APPARATUS FOR CONTROLLED STOPPING OF INTERNAL COMBUSTION ENGINE
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申请号: US15967961申请日: 2018-05-01
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公开(公告)号: US20190338742A1公开(公告)日: 2019-11-07
- 发明人: Suresh Gopalakrishnan , Lei Hao , Chandra S. Namuduri , Paul S. Lombardo , Chunhao J. Lee , Alexandru Rajala , Neeraj S. Shidore , Farzad Samie , Norman K. Bucknor , Dongxu Li
- 申请人: GM Global Technology Operations LLC
- 申请人地址: US MI Detroit
- 专利权人: GM Global Technology Operations LLC
- 当前专利权人: GM Global Technology Operations LLC
- 当前专利权人地址: US MI Detroit
- 主分类号: F02N11/08
- IPC分类号: F02N11/08
摘要:
A method of controlled stopping an internal combustion engine having a stop-start mode and starter assembly includes detecting when the stop-start mode is active. The method also includes monitoring current rotational speed and position of the engine. The method additionally includes determining when the current rotational position is within a predetermined range of a target stop rotational position and the current rotational speed is less than a threshold rotational speed, and afterward energizing the starter assembly to engage the engine. The method also includes establishing a time delay following energizing the starter assembly to confirm engagement of the starter assembly with the engine. Furthermore, the method includes applying a torque by the starter assembly to stop the engine at the target stop position. A vehicle powertrain employing the engine equipped with the stop-start mode, the starter assembly, and an electronic controller configured to execute the method is also provided.
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