发明申请
US20090118988A1 TORQUE CONVERTER CLUTCH CONTROL SYSTEM AND POST OXYGEN SENSOR PERFORMANCE DIAGNOSTIC SYSTEM
有权
扭矩转换器离合器控制系统和氧气传感器性能诊断系统
- 专利标题： TORQUE CONVERTER CLUTCH CONTROL SYSTEM AND POST OXYGEN SENSOR PERFORMANCE DIAGNOSTIC SYSTEM
- 专利标题（中）： 扭矩转换器离合器控制系统和氧气传感器性能诊断系统
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申请号： US12039130申请日： 2008-02-28
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公开(公告)号： US20090118988A1公开(公告)日： 2009-05-07
- 发明人: Douglas J. Moening , Igor Anilovich , John W. Siekkinen , Jayson S. Schwalm , Daniel J. Wickman
- 申请人： Douglas J. Moening , Igor Anilovich , John W. Siekkinen , Jayson S. Schwalm , Daniel J. Wickman
- 申请人地址： US MI Detroit
- 专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人： GM GLOBAL TECHNOLOGY OPERATIONS, INC.
- 当前专利权人地址： US MI Detroit
- 主分类号： F02D45/00
- IPC分类号： F02D45/00
摘要：
A system comprises a post oxygen performance diagnostic (POPD) module that performs a POPD of a post oxygen sensor, wherein the POPD includes a deceleration fuel cutoff (DFCO) portion. A torque converter control module adjusts operation of a torque converter clutch (TCC). The POPD module and the torque converter control module operate the TCC to control engine speed above a predetermined engine speed during the DFCO portion of the POPD. A method comprises performing a POPD of a post oxygen sensor, wherein the POPD includes a deceleration fuel cutoff (DFCO) portion and adjusting operation of a torque converter clutch (TCC) to control engine speed above a predetermined engine speed during the DFCO portion of the POPD.
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