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    • 4. 发明授权
    • Method and apparatus for controlling an internal combustion engine
    • 用于控制内燃机的方法和装置
    • US07891170B2
    • 2011-02-22
    • US10594478
    • 2005-02-04
    • Gerd RöselHong Zhang
    • Gerd RöselHong Zhang
    • F01N3/00
    • F02D41/0295F02D41/1439F02D41/1441F02D41/1477Y02T10/22
    • In order to control an internal combustion engine, a fuel mass that is to be supplied to the respective cylinder is determined according to a load variable. An additional fuel mass to be measured once is determined, when the measuring signal of an oxygen probe arranged downstream from a three-way catalytic converter is characteristic of at least one pre-determined residual oxygen part, according to the course of the measuring signal. A once reduced fuel mass is determined, when the measuring signal is characteristic of at least one pre-determined residual fuel part, according to the course of the measuring signal. A corrected fuel mass to be measured is determined according to the fuel mass to be supplied and optionally less the once reduced fuel mass or the fuel mass to be measured once. An actuating signal for controlling the injection valve is generated according to the corrected fuel mass to be supplied.
    • 为了控制内燃机,根据负荷变量确定要供给到各气缸的燃料量。 根据测量信号的过程,当从三元催化转化器下游设置的氧探针的测量信号是至少一个预定的残余氧部分的特征时,确定要测量一次的另外的燃料质量。 根据测量信号的过程,当测量信号是至少一个预定的剩余燃料部分的特征时,确定一次减少的燃料质量。 要测量的校正燃料质量根据要供应的燃料质量确定,并且可选地减少一次减少的燃料质量或要测量的燃料质量一次。 根据供给的校正后的燃料量,产生用于控制喷射阀的致动信号。
    • 9. 发明授权
    • Method and system for controlling air/fuel level for internal combustion engine with two exhaust banks
    • 用于控制具有两个排气管的内燃机的空气/燃料水平的方法和系统
    • US06301880B1
    • 2001-10-16
    • US09488664
    • 2000-01-20
    • Michael John CullenBrent Edward SealyKenneth John BehrRichard Andrew Booth
    • Michael John CullenBrent Edward SealyKenneth John BehrRichard Andrew Booth
    • F01N300
    • F02D41/1477F02D41/1443
    • A method and system for controlling the air/fuel ratio in an internal combustion engine having first and second groups of cylinders coupled to first and second exhaust banks, respectively. The first exhaust bank includes a catalyst and at least a pre-catalyst oxygen sensor. The second exhaust bank includes a catalyst and no more than one post-catalyst oxygen sensor. The oxygen sensors monitor the oxygen content of the exhaust gases in their corresponding exhaust banks and provide feedback signals to a controller. The controller uses the feedback signal from the pre-catalyst oxygen sensor (in the first bank) to calculate desired A/F values in the first group of cylinders. The controller uses both the feedback signal from the pre-catalyst oxygen sensor (in the first bank) and the feedback signal from the post-catalyst oxygen sensor (in the second bank) to calculate desired A/F values for the second group of cylinders.
    • 一种用于控制内燃机中的空燃比的方法和系统,所述内燃机分别具有联接到第一和第二排气组的第一和第二组气缸。 第一排气组包括催化剂和至少一种预催化剂氧传感器。 第二排气组包括催化剂和不超过一个催化后氧传感器。 氧传感器监测其相应排气组中废气的氧含量,并向控制器提供反馈信号。 控制器使用来自预催化剂氧传感器(在第一组中)的反馈信号来计算第一组气缸中的所需A / F值。 控制器使用来自预催化剂氧传感器(在第一组中)的反馈信号和来自催化后氧传感器(在第二组中)的反馈信号来计算第二组气缸的期望A / F值 。
    • 10. 发明授权
    • Air-fuel ratio controller for engine
    • 发动机空燃比控制器
    • US06286494B1
    • 2001-09-11
    • US09365812
    • 1999-08-02
    • Toshio IshiiYutaka Takaku
    • Toshio IshiiYutaka Takaku
    • F02B7508
    • F02D41/1441F02D41/1455F02D41/1456F02D41/1477F02D2041/1409F02D2041/1422F02D2041/1432
    • An air-fuel ratio correction coefficient calculating component is provided to an air-fuel ratio controller for an engine having the wide range air-fuel ratio sensor. The air-fuel ratio correction coefficient calculating component can accommodate a time lag in detection of an air-fuel ratio detected by the wide range air-fuel ratio sensor from the time when a mixed gas of the air-fuel ratio is supplied to the engine. For this purpose, an air-fuel ratio controller for an engine is accordance with the present invention provided, having a wide range air-fuel ratio sensor for outputting a signal corresponding to an air-fuel ratio of an exhaust gas; and a component for calculating an air-fuel ratio correction coefficient to control an amount of fuel supplied to the engine based on an output signal of the air-fuel ratio sensor, wherein the air-fuel ratio correction coefficient calculating component calculates the air-fuel ratio correction coefficient based on a non-linear calculation element that has an ON-OFF characteristic, a neutral zone characteristic, a saturation characteristic or a characteristic combining a plurality of characteristics selected frm the above-mentioned characteristics.
    • 空燃比校正系数计算部件设置在具有宽范围空燃比传感器的发动机的空燃比控制装置中。 空燃比校正系数计算部件能够适应从空燃比的混合气体向发动机供给时的宽范围空燃比传感器检测出的空燃比的时间滞后 。 为此,根据本发明,本发明提供一种具有宽范围的空燃比传感器,用于输出对应于排气的空燃比的信号; 以及基于所述空燃比传感器的输出信号来计算空燃比校正系数以控制供给到所述发动机的燃料量的分量,其中所述空燃比校正系数计算部件计算所述空燃比 基于具有ON-OFF特性,中性区特性,饱和特性或组合选择的多个特性的特性的非线性计算元件的比率校正系数。