Individual cylinder fuel control systems and methods for oxygen sensor degradation
    1.
    发明授权
    Individual cylinder fuel control systems and methods for oxygen sensor degradation 有权
    单独的气缸燃料控制系统和氧传感器降解的方法

    公开(公告)号:US08261727B2

    公开(公告)日:2012-09-11

    申请号:US12898109

    申请日:2010-10-05

    IPC分类号: F02D41/30

    摘要: A system includes an offset determination module and a correction determination module. The offset determination module determines an offset value based on an average response time of an exhaust gas oxygen (EGO) sensor located upstream of a catalyst in an exhaust system. The offset value relates one of a predetermined number of cylinder imbalance values to a cylinder of an engine. The correction determination module determines a fueling correction for the cylinder based on the offset value and one of the predetermined number of cylinder imbalance values.

    摘要翻译: 系统包括偏移确定模块和校正确定模块。 偏移确定模块基于位于排气系统中的催化剂上游的排气氧(EGO)传感器的平均响应时间来确定偏移值。 偏移值将预定数量的气缸不平衡值中的一个与发动机的气缸相关联。 校正确定模块基于偏移值和预定数量的气缸不平衡值中的一个来确定气缸的加油校正。

    INDIVIDUAL CYLINDER FUEL CONTROL SYSTEMS AND METHODS FOR OXYGEN SENSOR DEGREDATION
    4.
    发明申请
    INDIVIDUAL CYLINDER FUEL CONTROL SYSTEMS AND METHODS FOR OXYGEN SENSOR DEGREDATION 有权
    氧气传感器降解个别气缸燃料控制系统及方法

    公开(公告)号:US20120080016A1

    公开(公告)日:2012-04-05

    申请号:US12898109

    申请日:2010-10-05

    IPC分类号: F02D41/00

    摘要: A system includes an offset determination module and a correction determination module. The offset determination module determines an offset value based on an average response time of an exhaust gas oxygen (EGO) sensor located upstream of a catalyst in an exhaust system. The offset value relates one of a predetermined number of cylinder imbalance values to a cylinder of an engine. The correction determination module determines a fueling correction for the cylinder based on the offset value and one of the predetermined number of cylinder imbalance values.

    摘要翻译: 系统包括偏移确定模块和校正确定模块。 偏移确定模块基于位于排气系统中的催化剂上游的排气氧(EGO)传感器的平均响应时间来确定偏移值。 偏移值将预定数量的气缸不平衡值中的一个与发动机的气缸相关联。 校正确定模块基于偏移值和预定数量的气缸不平衡值中的一个来确定气缸的加油校正。