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    • 1. 发明授权
    • Air-fuel ratio control apparatus
    • 空燃比控制装置
    • US08015967B2
    • 2011-09-13
    • US12318116
    • 2008-12-22
    • Hiroshi MoritaKazuto Ikeda
    • Hiroshi MoritaKazuto Ikeda
    • F02D41/14F01L1/34
    • F01L13/0015F01L1/185F01L2001/0537F01L2105/00F01L2800/00F01N2560/025F01N2560/14F02D13/023F02D41/0002F02D41/1454F02D41/2454F02D41/2464F02D2041/001Y02T10/18Y02T10/42
    • An air-fuel ratio control apparatus is applied to an internal combustion engine including a variable lift mechanism which changes a lift amount of an intake valve. An oxygen sensor, which outputs a signal indicating an oxygen concentration in exhaust gas, is provided downstream of an exhaust gas purification catalyst in an exhaust passage of the internal combustion engine. Air-fuel ratio control is performed to correct the fuel injection amount command value using the correction amount that is set based on the value output from the oxygen sensor. The relationship among the deviation of the correction amount from its reference value, the learned small lift value, the learned medium lift value, and the lift amount is learned. The learned deviation value is calculated based on the lift amount, using the learned relationship. Then, the fuel injection amount command value is corrected by the correction amount including the calculated learned deviation value.
    • 空燃比控制装置被应用于包括改变进气门的升程量的可变升程机构的内燃机。 输出表示排气中的氧浓度的信号的氧传感器设置在内燃机的排气通路内的废气净化催化剂的下游。 执行空燃比控制,以使用基于从氧传感器输出的值设定的校正量来校正燃料喷射量指令值。 了解校正量与参考值的偏差,学习小升程值,学习介质升程值和提升量之间的关系。 使用学习关系,根据提升量计算学习偏差值。 然后,通过包括计算出的学习偏差值的校正量校正燃料喷射量指令值。
    • 3. 发明授权
    • Air-fuel ratio control apparatus
    • 空燃比控制装置
    • US07472697B2
    • 2009-01-06
    • US11604196
    • 2006-11-27
    • Hiroshi MoritaKazuto Ikeda
    • Hiroshi MoritaKazuto Ikeda
    • F02D41/00F01L1/34G06F17/00
    • F01L13/0015F01L1/185F01L2001/0537F01L2105/00F01L2800/00F01N2560/025F01N2560/14F02D13/023F02D41/0002F02D41/1454F02D41/2454F02D41/2464F02D2041/001Y02T10/18Y02T10/42
    • An air-fuel ratio control apparatus is applied to an internal combustion engine including a variable lift mechanism which changes a lift amount of an intake valve. An oxygen sensor, which outputs a signal indicating an oxygen concentration in exhaust gas, is provided downstream of an exhaust gas purification catalyst in an exhaust passage of the internal combustion engine. Air-fuel ratio control is performed to correct the fuel injection amount command value using the correction amount that is set based on the value output from the oxygen sensor. The relationship among the deviation of the correction amount from its reference value, the learned small lift value, the learned medium lift value, and the lift amount is learned. The learned deviation value is calculated based on the lift amount, using the learned relationship. Then, the fuel injection amount command value is corrected by the correction amount including the calculated learned deviation value.
    • 空燃比控制装置被应用于包括改变进气门的升程量的可变升程机构的内燃机。 输出表示排气中的氧浓度的信号的氧传感器设置在内燃机的排气通路内的废气净化催化剂的下游。 执行空燃比控制,以使用基于从氧传感器输出的值设定的校正量来校正燃料喷射量指令值。 了解校正量与参考值的偏差,学习小升程值,学习介质升程值和提升量之间的关系。 使用学习关系,根据提升量计算学习偏差值。 然后,通过包括计算出的学习偏差值的校正量校正燃料喷射量指令值。