发明名称 |
Air/fuel ratio control apparatus |
摘要 |
Fuel vapor is produced in a fuel tank and absorbed in a canister. The absorbed fuel vapor is purged through a purge passage into an engine induction passage under predetermined engine operating conditions. The air/fuel ratio is learned for air/fuel ratio feedback control. The learning control is inhibited when the fuel temperature exceeds a reference value during the air/fuel ratio feedback control. In another aspect of the invention, a purge valve is provided in the purge passage. The air/fuel ratio correction factor is set at an initial value in response to a movement of a purge valve from its open position toward its closed position.
|
申请公布号 |
US5785033(A) |
申请公布日期 |
1998.07.28 |
申请号 |
US19960752883 |
申请日期 |
1996.11.20 |
申请人 |
NISSAN MOTOR CO., LTD. |
发明人 |
KAWAMOTO, YUTAKA;IOCHI, ATSUSHI;KURIKI, HIROSHI |
分类号 |
F02D41/00;F02D41/14;F02D41/30;F02M25/08;(IPC1-7):F02M25/08 |
主分类号 |
F02D41/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|