发明名称 |
Catalytic converter temperature control system and method |
摘要 |
An electronic engine controller controls the catalytic converter temperature by generating a desired rich air/fuel ratio that will maintain the catalytic converter at a predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a first rate when the catalytic converter temperature is greater than a first predetermined temperature. The actual air/fuel ratio is ramped to the desired air/fuel ratio at a second rate when the catalytic converter temperature is greater than a second predetermined temperature but less than the first predetermined temperature.
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申请公布号 |
US6272850(B1) |
申请公布日期 |
2001.08.14 |
申请号 |
US19980207385 |
申请日期 |
1998.12.08 |
申请人 |
FORD GLOBAL TECHNOLOGIES, INC. |
发明人 |
GRANT ROBERT MICHAEL;ZIMMERMAN EUGENE S.;CULLEN MICHAEL JOHN;CURRAN PATRICK JOSEPH;TUTTLE RICHARD |
分类号 |
F01N3/20;F02D41/02;F02D41/14;(IPC1-7):F01N3/00 |
主分类号 |
F01N3/20 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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