发明名称 |
Method and apparatus for controlling exhausted gas emissions during cold-start of an internal combustion engine |
摘要 |
An in-cylinder ion sensor provides a signal representative of the air/fuel ratio of the charge mixture as an engine starts. The signal representative of the air/fuel ratio is used as a feedback signal for an electronic control unit to perform cold-start closed-loop control during an initial operating period from a cold-start before an on-board oxygen sensor is able to warm up. After reaching a functional operating temperature, the oxygen sensor provides a signal that is used as an adaptive calibration tool which allows the electronic control unit to calibrate the ion sensor signal and use that signal for controlling the air/fuel ratio during cold start operation.
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申请公布号 |
US2003230074(A1) |
申请公布日期 |
2003.12.18 |
申请号 |
US20030444222 |
申请日期 |
2003.05.23 |
申请人 |
SOUTHWEST RESEARCH INSTITUTE |
发明人 |
HUANG YIQUN;GROGAN JOSEPH |
分类号 |
F02P17/12;F02D13/02;F02D35/02;F02D41/06;F02D41/14;F02D41/22;F02D45/00;(IPC1-7):F01N3/00 |
主分类号 |
F02P17/12 |
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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