发明申请
US20030047164A1 Engine start strategy 有权
发动机启动策略

  • 专利标题: Engine start strategy
  • 专利标题(中): 发动机启动策略
  • 申请号: US09951286
    申请日: 2001-09-12
  • 公开(公告)号: US20030047164A1
    公开(公告)日: 2003-03-13
  • 发明人: John R. Jaye
  • 主分类号: F02D041/14
  • IPC分类号: F02D041/14 B60K041/04
Engine start strategy
摘要:
The strategy controls operation of an internal combustion engine in the time period before an oxygen sensor is warmed up sufficiently to provide reliable feedback measurements. It involves using a target speed-time (or event) goal, and then applying feedback, feedforward, and/or adaptive controls on the difference between the target and a measured engine speed. The target speed time (or event) can be programmed into an engine controller as a lookup table. The actual engine speed at each desired time or event can then be compared to the desired speed to obtain a difference value. Fueling, or any other speed control parameters, can be modified based on the difference value using feedback or feedforward routines to correct the measured value toward the target. The fueling or other control parameters can also be adapted for the next start based on any corrections.
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