| 发明名称 | Fuel system diagnostics | ||
| 摘要 | Methods and systems are provided for detecting a fuel system leak. One or more of a boost pressure from a compressor and vacuum from an intake manifold is sequentially applied on a fuel tank. A leak is detected based on a subsequent change in fuel tank pressure. | ||
| 申请公布号 | US9261054(B2) | 申请公布日期 | 2016.02.16 |
| 申请号 | US201213429120 | 申请日期 | 2012.03.23 |
| 申请人 | Ford Global Technologies, LLC | 发明人 | Peters Mark W.;Jentz Robert Roy;Dudar Aed M. |
| 分类号 | F02M33/02;F02D41/26;F02B37/00;F02M25/08 | 主分类号 | F02M33/02 |
| 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 a boosted engine, comprising: indicating fuel vapor system degradation in response to a change in fuel vapor system pressure following application of each of a positive pressure generated at a turbocharger and a negative pressure generated at an engine intake. | ||
| 地址 | Dearborn MI US | ||