会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Inter-cylinder air/fuel ratio imbalance determination apparatus and inter-cylinder air/fuel ratio imbalance determination method
    • 气缸间空燃比不平衡确定装置和气缸间空燃比不平衡确定方法
    • US08589055B2
    • 2013-11-19
    • US13194915
    • 2011-07-30
    • Masashi HakariyaMasahide Okada
    • Masashi HakariyaMasahide Okada
    • F02D17/00
    • F02D41/0085F02D41/123F02D41/1441F02D41/1446F02D41/1456F02D41/2454F02D2041/1432
    • The invention provides an inter-cylinder air/fuel ratio imbalance determination apparatus and method. The determination apparatus includes a “limiting current type air/fuel ratio sensor”, and acquires a pre-correction index quantity that is greater the greater the degree of non-uniformity of the cylinder-by-cylinder air/fuel ratios, on the basis of a time differential value of the output value of the air/fuel ratio sensor. The determination apparatus obtains as the correction-purpose output value an average value of the output value obtained during a fuel-cut operation. The correction-purpose output value is greater the higher the responsiveness of the air/fuel ratio sensor. The determination apparatus acquires an air/fuel ratio imbalance index value by correcting the pre-correction index quantity so that the pre-correction index quantity is smaller the greater the correction-purpose output value. It is determined that an inter-cylinder air/fuel ratio imbalance state has occurred, when the air/fuel ratio imbalance index value is greater than or equal to an imbalance determination threshold value.
    • 本发明提供一种气缸内空气/燃料比不平衡确定装置和方法。 确定装置包括“极限电流型空气/燃料比传感器”,并且基于每个缸缸空气/燃料比的不均匀度越大获得预校正指数量越大 的空气/燃料比传感器的输出值的时间微分值。 确定装置获得在燃料切断操作期间获得的输出值的平均值作为校正用输出值。 校正用途输出值越大,空/燃比传感器的响应性越高。 确定装置通过校正预校正指数量来获取空/燃比不平衡指数值,使得校正指数量越小校正用输出值越大。 当空/燃比不平衡指数值大于或等于不平衡确定阈值时,确定发生了缸间空气/燃料比不平衡状态。
    • 9. 发明申请
    • INTER-CYLINDER AIR/FUEL RATIO IMBALANCE DETERMINATION APPARATUS AND INTER-CYLINDER AIR/FUEL RATIO IMBALANCE DETERMINATION METHOD
    • 气缸间空气/燃油比例不平衡测定装置和缸内空气/燃料比率不平衡测定方法
    • US20120024274A1
    • 2012-02-02
    • US13194915
    • 2011-07-30
    • Masashi HakariyaMasahide Okada
    • Masashi HakariyaMasahide Okada
    • F02D41/00
    • F02D41/0085F02D41/123F02D41/1441F02D41/1446F02D41/1456F02D41/2454F02D2041/1432
    • The invention provides an inter-cylinder air/fuel ratio imbalance determination apparatus and method. The determination apparatus includes a “limiting current type air/fuel ratio sensor”, and acquires a pre-correction index quantity that is greater the greater the degree of non-uniformity of the cylinder-by-cylinder air/fuel ratios, on the basis of a time differential value of the output value of the air/fuel ratio sensor. The determination apparatus obtains as the correction-purpose output value an average value of the output value obtained during a fuel-cut operation. The correction-purpose output value is greater the higher the responsiveness of the air/fuel ratio sensor. The determination apparatus acquires an air/fuel ratio imbalance index value by correcting the pre-correction index quantity so that the pre-correction index quantity is smaller the greater the correction-purpose output value. It is determined that an inter-cylinder air/fuel ratio imbalance state has occurred, when the air/fuel ratio imbalance index value is greater than or equal to an imbalance determination threshold value.
    • 本发明提供一种气缸内空气/燃料比不平衡确定装置和方法。 确定装置包括“极限电流型空气/燃料比传感器”,并且基于每个缸缸空气/燃料比的不均匀度越大获得预校正指数量越大 的空气/燃料比传感器的输出值的时间微分值。 确定装置获得在燃料切断操作期间获得的输出值的平均值作为校正用输出值。 校正用途输出值越大,空/燃比传感器的响应性越高。 确定装置通过校正预校正指数量来获取空/燃比不平衡指数值,使得校正指数量越小校正用输出值越大。 当空/燃比不平衡指数值大于或等于不平衡确定阈值时,确定发生了缸间空气/燃料比不平衡状态。