| 发明名称 | Integrated fuel catalyst monitor | ||
| 摘要 | A method is provided for monitoring an emission device coupled to an engine. In one example approach, the method comprises: following a deceleration fuel shut-off duration, indicating degradation of the emission device based on an amount of rich products required to cause a sensor to become richer than a threshold. The amount of rich products required may be correlated to an amount of oxygen stored in the emission device. The indication of emission device degradation may be further based on air mass and temperature during delivery of the required rich products. | ||
| 申请公布号 | US9328646(B2) | 申请公布日期 | 2016.05.03 |
| 申请号 | US201414248242 | 申请日期 | 2014.04.08 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Sealy Brent Edward;Hepburn Jeffrey Scott;Dara Paul Chester |
| 分类号 | F01N3/00;F01N3/10;F01N11/00;F02D41/02;F02D41/12;F02D41/14 | 主分类号 | F01N3/00 |
| 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. A method for monitoring an emission device coupled to an engine, comprising: following a deceleration fuel shut-off duration, indicating degradation of the emission device based on an amount of rich products required to cause a sensor to become richer than a threshold, the indicating carried out when the deceleration fuel shut-off duration is greater than a second threshold, the indicating further based on air mass during delivery of the required rich products. | ||
| 地址 | Dearborn MI US | ||