| 发明名称 |
SYSTEM AND METHODS FOR PURGING RESIDUAL EXHAUST AND UNCOMBUSTED FUEL TO A FUEL VAPOR CANISTER |
| 摘要 |
Methods and systems are provided for purging uncombusted fuel and exhaust from a vehicle engine to a fuel vapor canister. In one example, during a first condition, an electric motor is operated to rotate the vehicle engine in a reverse direction, and purging contents of one or more engine cylinders to the fuel vapor canister. In this way, fresh air is drawn through an engine exhaust, forcing hydrocarbons to the fuel vapor canister, and reducing potential bleed emissions. |
| 申请公布号 |
US2017030271(A1) |
申请公布日期 |
2017.02.02 |
| 申请号 |
US201514810177 |
申请日期 |
2015.07.27 |
| 申请人 |
Ford Global Technologies, LLC |
发明人 |
Dudar Aed M. |
| 分类号 |
F02D13/02;B60K6/24;B60K6/26;F02B25/14 |
主分类号 |
F02D13/02 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method for a vehicle engine, comprising:
during a first condition, operating an electric motor to rotate the vehicle engine in a reverse direction; and purging contents of one or more engine cylinders to a fuel vapor canister. |
| 地址 |
Dearborn MI US |
