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公开(公告)号：EP0711911A3
公开(公告)日：1998-12-30
申请号：EP95203397
申请日：1993-06-08
CPC分类号： G01M15/11 , F02D2200/702 , G01L19/147
摘要： A misfire detecting method in which misfire detection is carried out based on a rotating condition of an output shaft (7) of an internal combustion engine. A volumetric efficiency of the internal combustion engine is detected, and the misfire detection is prohibited when the detected volumetric efficiency is smaller than a predetermined load condition discrimination value.
摘要翻译： 根据内燃机的输出轴（7）的旋转状态进行失火检测的失火检测方法。 检测内燃机的容积效率，并且当检测到的容积效率小于预定的负载条件辨别值时禁止失火检测。
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公开(公告)号：EP0710772A3
公开(公告)日：1998-12-30
申请号：EP95203396
申请日：1993-06-08
CPC分类号： G01M15/11 , F02D2200/702 , G01L19/147
摘要： A misfire detecting method in which misfire detection is carried out based on a rotating condition of an output shaft (7) of an internal combustion engine, which engine is controlled by a controller to which electric power is supplied from a power source for a time after an ignition key is turned off to permit the controller to conduct a control required at a time of stopping the engine operation. The method comprises the steps of: detecting (S4) when the ignition key is turned off; and prohibiting misfire detection until a predetermined detection-prohibiting time period has elapsed from the moment when it was detected that the ignition key had been turned off.
摘要翻译： 一种失火检测方法，其中，当判定内燃机在内燃机中的负荷突然变化的特殊状态下操作时，禁止检测到失火，以防止发生错误检测。 进行发动机起动后的当前时刻的判断（S3），或者在点火钥匙关闭后的当前时刻的判定（S4）的情况下（S4），或者判断为 进行发动机的减速操作，变速器的变速操作或车辆的粗加载行驶（S5-S7），重复执行失火检测处理的处理器立即中止当前循环中的失火检测处理 以避免当车辆在粗糙的道路等上行驶时容易发生的错误检测的发生。
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公开(公告)号：EP0708234A3
公开(公告)日：1998-12-30
申请号：EP95203468
申请日：1993-06-08
发明人： MATSUMOTO TAKUYA , HASHIMOTO TORU , MIYAKE MITSUHIRO , YOSHIDA YASUHISA , YANAGISAWA MITSUHIKO , NAKAJIMA HIROYUKI , NAMIKI KOICHI , KASAI SATOSHI
CPC分类号： F02D41/22 , F02D41/0097 , F02D41/1498 , F02D41/222 , F02D2200/1015 , F02D2200/702 , G01M15/11
摘要： A method for detecting misfire by fluctuation in crankshaft rotation in which the occurrence of misfire can be detected exactly by eliminating the effect of detection error in detecting the fluctuation in crankshaft rotation, caused by the error in the construction of a crank angle sensor. By succeedingly receiving pulses from the crank angle sensor, a processor detects a time interval taken from the entering into a crankshaft rotation angle region, relating to a cylinder corresponding to both pulses, to the leaving therefrom (S2), calculates the crankshaft angular acceleration Dω
n by using the correction factor calculated on the basis of the above detected time interval, and the time interval determined by dividing the time taken for one rotation of crankshaft by the number of cylinders (S3, S4), the latter interval being free from sensor error, and detects the occurrence of misfire when the calculated value Dω
n is less than the decision value (S5 through S7).摘要翻译： 通过利用曲轴的旋转变化来检测失火的方法，其能够在消除的检测误差的影响下精确地检测失火的发生，这归因于在检测变化中使用的曲柄角传感器的结构误差 曲轴的旋转。 当处理器从曲柄角传感器顺序接收脉冲时，它检测（S2）检测操作进入曲轴相对于两个脉冲的圆柱体的旋转角度的区域中的一段时间的长度，并且 离开同一地区的同一行动。 通过使用校正因子来计算曲轴的角加速度Dωn（S3，S4），该校正因子是根据检测到的时间长度和没有操作误差的时间长度而确定的 并通过将曲轴的一圈所需的时间除以气缸的数量来确定。 当计算值D omega n小于判断值时，检测到失火的发生（S5-S7）。
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