| 发明名称 | EGR operation method and system for increased drivability | ||
| 摘要 | A method for an engine may comprise, in response to an EGR valve closing, determining an EGR oxygen content, and purging an EGR system when the EGR oxygen content is less than a threshold oxygen content. | ||
| 申请公布号 | US9422878(B2) | 申请公布日期 | 2016.08.23 |
| 申请号 | US201414252595 | 申请日期 | 2014.04.14 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Pohlkamp Kyle;Fulton Brien Lloyd |
| 分类号 | F02B1/12;F02D41/00;B60W20/00;F02M25/07;F02D29/02;F02D41/14 | 主分类号 | F02B1/12 |
| 代理机构 | Alleman Hall McCoy Russell & Tuttle LLP | 代理人 | Voutyras Julia;Alleman Hall McCoy Russell & Tuttle LLP |
| 主权项 | 1. An engine method, comprising: responsive to an exhaust gas recirculation (EGR) valve closing, determining an oxygen content downstream of an engine exhaust and upstream of the EGR valve in an EGR system; and when the oxygen content is below a threshold, fluidly coupling an engine intake with the exhaust via the EGR system by opening the EGR valve, during operating conditions when it would otherwise be closed, to purge the EGR system into the intake. | ||
| 地址 | Dearborn MI US | ||