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    • 5. 发明授权
    • Method of detecting combustion misfires
    • 检测燃烧失火的方法
    • US5691469A
    • 1997-11-25
    • US705146
    • 1996-08-29
    • Manfred MezgerAndrea LohmannKlaus Ries-MullerJurgen Forster
    • Manfred MezgerAndrea LohmannKlaus Ries-MullerJurgen Forster
    • G01M15/04F02D45/00G01M15/11G01M15/00
    • G01M15/11
    • The invention is directed to a method for detecting combustion misfires in an internal combustion engine on the basis of a first signal wherein the nonuniformity of the rotational movement of the crankshaft of the engine is imaged. The method includes the steps of: generating a second signal which is periodic and has a period duration corresponding to one of the following: the cycle duration of a complete work cycle of the engine or the cycle duration divided by a whole number, and the second signal having a fixed phase relationship to the rotational movement of said crankshaft; providing an ancillary signal based on the first signal; modulating the second signal with the ancillary signal and filtering the second signal to form a third signal; and, utilizing the third signal for detecting the presence of misfires and for identifying the cylinder affected by the misfires.
    • 本发明涉及一种用于根据第一信号来检测内燃机中的燃烧失火的方法,其中成像发动机曲轴的旋转运动的不均匀性。 该方法包括以下步骤:产生周期性的并具有对应于以下之一的周期持续时间的第二信号:发动机的完整工作循环的循环持续时间或循环持续时间除以整数,第二信号 信号与所述曲轴的旋转运动具有固定的相位关系; 基于所述第一信号提供辅助信号; 用辅助信号调制第二信号并对第二信号进行滤波以形成第三信号; 并且利用第三信号来检测是否存在失火,并且用于识别受到失火影响的气缸。
    • 6. 发明授权
    • Method and arrangement for checking the operability of an electric
heater in a motor vehicle
    • 检查电动汽车电加热器运行性能的方法和装置
    • US5218946A
    • 1993-06-15
    • US951856
    • 1992-09-28
    • Ernst WildManfred MezgerKlaus Ries-Muller
    • Ernst WildManfred MezgerKlaus Ries-Muller
    • F02D41/14F02D45/00
    • F02D41/1494
    • The invention relates to a method and an arrangement for checking the operability of an electric heater in motor vehicles and especially the heater of an oxygen probe which is mounted in the exhaust gas channel of an internal combustion engine. It is necessary to determine the temperature-dependent electrical resistance and the temperature of the oxygen probe heater for a precise evaluation of the operational state of the oxygen probe heater. The basic principle of the invention is based upon the consideration that the measurement of the electrical resistance of the oxygen probe heater is then carried out when the oxygen probe heater has cooled down to the ambient temperature. Whether this cool down has taken place can be determined in various ways in accordance with the invention, for example, from the cool down of the engine block or by a comparison of the engine block temperature to the intake-air temperature. The operating state of the oxygen probe heater so determined is displayed to the driver by the activation of a corresponding control device and/or, if required, read into a fault memory.
    • 本发明涉及一种用于检查机动车辆中的电加热器的可操作性的方法和装置,特别是安装在内燃机的排气通道中的氧探头的加热器。 需要确定氧气探头加热器的温度依赖性电阻和温度,以精确评估氧探头加热器的工作状态。 本发明的基本原理基于以下考虑:当氧探针加热器已经冷却到环境温度时,氧探头加热器的电阻的测量被执行。 可以根据本发明的各种方式来确定是否发生这种冷却,例如,从发动机缸体的冷却或通过发动机缸体温度与进气温度的比较来确定。 如此确定的氧探头加热器的操作状态通过激活相应的控制装置和/或如果需要读入故障存储器而显示给驾驶员。
    • 7. 发明授权
    • Method of detecting combustion misfires
    • 检测燃烧失火的方法
    • US5955663A
    • 1999-09-21
    • US794548
    • 1997-02-03
    • Klaus Ries-MullerChristian KohlerWolfgang Wimmer
    • Klaus Ries-MullerChristian KohlerWolfgang Wimmer
    • G01M15/04F02D41/14F02D45/00G01M15/00
    • F02D41/1498F02D2200/1015
    • A first signal imaging nonuniformities in the rotational movement of the crankshaft is provided and corrective values are formed and successively changed for each cylinder individually and specifically for each load/rpm range of a plurality of load/rpm ranges until a predetermined condition is satisfied. The corrective value of the first one of the load/rpm ranges wherein the predetermined condition is satisfied is logically coupled to the first signal also in the remaining ones of said the ranges so long until the condition is also satisfied in the remaining ones of the ranges to thereby form a second signal less influenced by the nonuniformities than the first signal. A misfire is then detected when the second signal crosses over a reference value.
    • 提供了对曲轴的旋转运动中的不均匀性进行成像的第一信号,并且针对每个气缸单独地,具体地针对多个负载/ rpm范围的每个负载/转速范围形成并连续地改变校正值,直到满足预定条件。 其中满足预定条件的负载/转速范围中的第一个的校正值在所述范围中的剩余范围内也在逻辑上耦合到第一信号,直到剩余的范围中的条件也满足 从而形成比不同于第一信号的不均匀性更小的第二信号。 当第二个信号超过参考值时,就会检测到失火。