发明授权
- 专利标题: Method and system for pre-ignition control
- 专利标题(中): 预燃控制方法和系统
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申请号: US13309409申请日: 2011-12-01
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公开(公告)号: US08265859B2公开(公告)日: 2012-09-11
- 发明人: John Eric Rollinger , Robert Roy Jentz , Robert Sarow Baskins , Chris Paul Glugla , Karen Willard
- 申请人: John Eric Rollinger , Robert Roy Jentz , Robert Sarow Baskins , Chris Paul Glugla , Karen Willard
- 申请人地址: US MI Dearborn
- 专利权人: Ford Global Technologies, LLC
- 当前专利权人: Ford Global Technologies, LLC
- 当前专利权人地址: US MI Dearborn
- 代理机构: Alleman Hall McCoy Russell & Tuttle LLP
- 代理商 Julia Voutyras
- 主分类号: F02D41/14
- IPC分类号: F02D41/14
摘要:
Methods and systems are provided for mitigating engine pre-ignition based on a feed-forward likelihood of pre-ignition and feedback from a pre-ignition event. In response to an indication of pre-ignition, a cylinder may be enriched while an engine load is limited. The enrichment may be followed by an enleanment to restore exhaust catalyst feed-gas oxygen levels. The mitigating steps may be adjusted based on engine operating conditions, a pre-ignition count, as well as the nature of the pre-ignition.
公开/授权文献
- US20120073542A1 METHOD AND SYSTEM FOR PRE-IGNITION CONTROL 公开/授权日:2012-03-29
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