| 发明名称 |
APPROACH FOR ENGINE CONTROL AND DIAGNOSTICS |
| 摘要 |
Embodiments for an engine exhaust are provided. In one example, a method comprises adjusting a fuel injection amount based on a fractional oxidation state of a catalyst, the fractional oxidation state based on reaction rates of a plurality of exhaust gas species throughout a catalyst longitudinal axis and a set of axially-averaged mass balance and energy balance equations for a fluid phase and a washcoat of the catalyst, and further based on feedback from a downstream air-fuel ratio sensor. In this way, a simplified catalyst model may be used to control air-fuel ratio. |
| 申请公布号 |
US2015233315(A1) |
申请公布日期 |
2015.08.20 |
| 申请号 |
US201414180541 |
申请日期 |
2014.02.14 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Kumar Pankaj;Makki Imad Hassan;Filev Dimitar Petrov |
| 分类号 |
F02D41/02 |
主分类号 |
F02D41/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An engine exhaust method, comprising:
adjusting, via a first controller communicating with sensors and actuators, a fuel injection amount based on a fractional oxidation state of a catalyst, the fractional oxidation state based on reaction rates of a plurality of exhaust gas species throughout a catalyst longitudinal axis and a set of axially-averaged mass balance and energy balance equations for a fluid phase and a washcoat of the catalyst, and further based on separate feedback from a downstream air-fuel ratio sensor. |
| 地址 |
Dearborn MI US |
