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公开(公告)号：US07877192B2
公开(公告)日：2011-01-25
申请号：US12222790
申请日：2008-08-15
CPC分类号： F02D41/0097 , F02D13/0226 , F02D41/0085 , F02D41/1498 , Y02T10/18
摘要： A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every predetermined crank angle is calculated as a relative speed parameter. For each cylinder, an integrated value is calculated by integrating the relative speed parameters over a predetermined period. For each cylinder, an average value per cylinder of the sum of the integrated values of all the cylinders is calculated. For each cylinder, an error between the integrated value of the cylinder and the average value is calculated. For each cylinder, the output of the engine is controlled in accordance with the error calculated for the cylinder such that variations in the output between the cylinders are suppressed.
摘要翻译： 根据发动机的转速来检测转速参数。 计算转速参数的基准值。 对于每个气缸，计算每个预定曲轴角度的参考值和旋转速度参数之间的误差作为相对速度参数。 对于每个气缸，通过在预定时间段内积分相对速度参数来计算积分值。 对于每个气缸，计算所有气缸的积分值之和的每缸的平均值。 对于每个气缸，计算气缸的积分值与平均值之间的误差。 对于每个气缸，根据针对气缸计算的误差来控制发动机的输出，从而抑制气缸之间输出的变化。
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公开(公告)号：US20090064967A1
公开(公告)日：2009-03-12
申请号：US12222790
申请日：2008-08-15
CPC分类号： F02D41/0097 , F02D13/0226 , F02D41/0085 , F02D41/1498 , Y02T10/18
摘要： A rotational speed parameter is detected in accordance with a rotational speed of the engine. A reference value of the rotational speed parameter is calculated. For each cylinder, an error between the reference value and the rotational speed parameter detected every predetermined crank angle is calculated as a relative speed parameter. For each cylinder, an integrated value is calculated by integrating the relative speed parameters over a predetermined period. For each cylinder, an average value per cylinder of the sum of the integrated values of all the cylinders is calculated. For each cylinder, an error between the integrated value of the cylinder and the average value is calculated. For each cylinder, the output of the engine is controlled in accordance with the error calculated for the cylinder such that variations in the output between the cylinders are suppressed.
摘要翻译： 根据发动机的转速来检测转速参数。 计算转速参数的基准值。 对于每个气缸，计算每个预定曲轴角度的参考值和旋转速度参数之间的误差作为相对速度参数。 对于每个气缸，通过在预定时间段内积分相对速度参数来计算积分值。 对于每个气缸，计算所有气缸的积分值之和的每缸的平均值。 对于每个气缸，计算气缸的积分值与平均值之间的误差。 对于每个气缸，根据针对气缸计算的误差来控制发动机的输出，从而抑制气缸之间输出的变化。
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公开(公告)号：US07536902B2
公开(公告)日：2009-05-26
申请号：US11637883
申请日：2006-12-13
IPC分类号： G01M15/00
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for an internal combustion engine wherein a rotational speed parameter according to a rotational speed of the engine is detected. A reference value of the rotational speed parameter is then calculated. Next, a difference between the reference value and a rotational speed parameter detected at every predetermined crank angle as a relative speed parameter is calculated. Further, an integrated value of the relative speed parameter is calculated, and a misfire determination is performed based on the calculated integrated value.
摘要翻译： 一种用于内燃机的失火检测装置，其中检测到根据发动机转速的转速参数。 然后计算转速参数的参考值。 接下来，计算基准值与在每个预定曲轴角度检测的转速参数之间的差作为相对速度参数。 此外，计算相对速度参数的积分值，并且基于所计算的积分值执行失火判定。
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4.发明申请公开(公告)号：US20080098806A1
公开(公告)日：2008-05-01
申请号：US11897000
申请日：2007-09-07
IPC分类号： G01P3/44
CPC分类号： F02D41/0097 , F02D41/2451 , G01P3/489
摘要： An angular speed detecting apparatus for a crankshaft of an internal combustion engine. The angular speed detecting apparatus detects a rotational angular speed of the crankshaft based on an output of a pulse generator which generates a crank pulse at every predetermined rotational angle of the crankshaft. An average value of a speed parameter indicating a rotational angular speed of the crankshaft is calculated using the data sampled at intervals of 720/N degrees where N is a number of cylinders of the engine. A learning correction coefficient for correcting the speed parameter is calculated according to the average value. The speed parameter is corrected using the learning correction coefficient.
摘要翻译： 一种用于内燃机的曲轴的角速度检测装置。 角速度检测装置基于在曲轴的每个预定旋转角度产生曲柄脉冲的脉冲发生器的输出来检测曲轴的旋转角速度。 使用以N =发动机的气缸数的720 / N度的间隔采样的数据来计算表示曲轴的旋转角速度的速度参数的平均值。 根据平均值计算用于校正速度参数的学习校正系数。 使用学习校正系数校正速度参数。
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公开(公告)号：US20080103681A1
公开(公告)日：2008-05-01
申请号：US11898235
申请日：2007-09-11
IPC分类号： G06G7/70
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for detecting a misfire of an internal combustion engine based on a detected rotational speed parameter. A moving averaging calculation is performed with respect to data of the detected rotational speed parameter to calculate an averaged speed parameter, a number of the data being equal to a sampling number NTDC. A reference value of the averaged speed parameter and a relative speed parameter are calculated. The relative speed parameter is a deviation of the averaged speed parameter detected at every predetermined crank angle from the reference value. An integrated value of the relative speed parameter is calculated and a misfire determination is performed based on the integrated value. The sampling number (NTDC) is determined by an equation: NTDC=720/(N×Dθ) where (N) is a number of cylinders and (Dθ) is a sampling angular period (degree) of the rotational speed parameter.
摘要翻译： 一种用于基于检测到的转速参数来检测内燃机的失火的失火检测装置。 对所检测的转速参数的数据执行移动平均计算，以计算平均速度参数，数据的数量等于采样数NTDC。 计算平均速度参数和相对速度参数的参考值。 相对速度参数是在每个预定曲轴角度处检测到的平均速度参数与参考值的偏差。 计算相对速度参数的积分值，并基于积分值执行失火判定。 采样数（NTDC）由以下等式确定：<？in-line-formula description =“In-line Formulas”end =“lead”？> NTDC = 720 /（NxDtheta）<？in-line-formula description = “直列公式”end =“tail”？>其中（N）是气缸数，（Dθ）是旋转速度参数的采样角度周期（度）。
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6.发明授权公开(公告)号：US07614290B2
公开(公告)日：2009-11-10
申请号：US11897000
申请日：2007-09-07
IPC分类号： G01P3/44
CPC分类号： F02D41/0097 , F02D41/2451 , G01P3/489
摘要： An angular speed detecting apparatus for a crankshaft of an internal combustion engine. The angular speed detecting apparatus detects a rotational angular speed of the crankshaft based on an output of a pulse generator which generates a crank pulse at every predetermined rotational angle of the crankshaft. An average value of a speed parameter indicating a rotational angular speed of the crankshaft is calculated using the data sampled at intervals of 720/N degrees where N is a number of cylinders of the engine. A learning correction coefficient for correcting the speed parameter is calculated according to the average value. The speed parameter is corrected using the learning correction coefficient.
摘要翻译： 一种用于内燃机的曲轴的角速度检测装置。 角速度检测装置基于在曲轴的每个预定旋转角度产生曲柄脉冲的脉冲发生器的输出来检测曲轴的旋转角速度。 使用以N =发动机的气缸数的720 / N度的间隔采样的数据来计算表示曲轴的旋转角速度的速度参数的平均值。 根据平均值计算用于校正速度参数的学习校正系数。 使用学习校正系数校正速度参数。
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公开(公告)号：US07480591B2
公开(公告)日：2009-01-20
申请号：US11898235
申请日：2007-09-11
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for detecting a misfire of an internal combustion engine based on a detected rotational speed parameter. A moving averaging calculation is performed with respect to data of the detected rotational speed parameter to calculate an averaged speed parameter, a number of the data being equal to a sampling number NTDC. A reference value of the averaged speed parameter and a relative speed parameter are calculated. The relative speed parameter is a deviation of the averaged speed parameter detected at every predetermined crank angle from the reference value. An integrated value of the relative speed parameter is calculated and a misfire determination is performed based on the integrated value. The sampling number (NTDC) is determined by an equation: NTDC=720/(N×Dθ) where (N) is a number of cylinders and (Dθ) is a sampling angular period (degree) of the rotational speed parameter.
摘要翻译： 一种用于基于检测到的转速参数来检测内燃机的失火的失火检测装置。 对所检测的转速参数的数据执行移动平均计算，以计算平均速度参数，数据的数量等于采样数NTDC。 计算平均速度参数和相对速度参数的参考值。 相对速度参数是在每个预定曲轴角度处检测到的平均速度参数与参考值的偏差。 计算相对速度参数的积分值，并基于积分值执行失火判定。 采样数（NTDC）由以下等式确定：<？in-line-formula description =“In-line Formulas”end =“lead”？> NTDC = 720 /（NxDtheta）<？in-line-formula description = “直列公式”end =“tail”？>其中（N）是气缸数，（Dθ）是旋转速度参数的采样角度周期（度）。
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公开(公告)号：US20070157713A1
公开(公告)日：2007-07-12
申请号：US11637883
申请日：2006-12-13
IPC分类号： G01L3/26
CPC分类号： G01M15/11
摘要： A misfire detecting apparatus for an internal combustion engine wherein a rotational speed parameter according to a rotational speed of the engine is detected. A reference value of the rotational speed parameter is then calculated. Next, a difference between the reference value and a rotational speed parameter detected at every predetermined crank angle as a relative speed parameter is calculated. Further, an integrated value of the relative speed parameter is calculated, and a misfire determination is performed based on the calculated integrated value.
摘要翻译： 一种用于内燃机的失火检测装置，其中检测到根据发动机的转速的转速参数。 然后计算转速参数的参考值。 接下来，计算基准值与在每个预定曲轴角度检测的转速参数之间的差作为相对速度参数。 此外，计算相对速度参数的积分值，并且基于所计算的积分值执行失火判定。
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公开(公告)号：US06907343B2
公开(公告)日：2005-06-14
申请号：US10792775
申请日：2004-03-05
申请人： Toshinori Tsukamoto , Eisaku Gosyo
发明人： Toshinori Tsukamoto , Eisaku Gosyo
CPC分类号： F01P11/16 , F01P2023/00 , F01P2025/08 , F01P2025/13 , F01P2025/52 , F01P2031/00
摘要： In a malfunction detecting system of an engine cooling apparatus constituted as a radiator having a thermostat that opens/closes a communicating passage between the engine and the radiator, estimated coolant temperature is calculated using a thermal load parameter correlated to rise in the coolant temperature after engine starting, whilst an engine standing time period is detected. Then, the detected engine standing time period is compared with a predetermined value and based on a result of comparison, one of preset threshold values including a malfunction discrimination threshold value and a malfunction discrimination execute threshold value is selected. The selected threshold value is then compared with the estimated coolant temperature or a difference between the estimated coolant temperature and the detected coolant temperature, and it is discriminated that the cooling apparatus has malfunctioned, when the estimated coolant temperature or the difference exceeds the malfunction discrimination threshold value. With this, the malfunction can be detected with high accuracy.
摘要翻译： 在构成散热器的发动机冷却装置的故障检测系统中，该散热器具有开/关发动机和散热器之间的连通通道的恒温器，使用与发动机之间的冷却剂温度升高相关的热负荷参数来计算估计的冷却剂温度 起动时，同时检测到发动机静置时间段。 然后，将检测到的发动机静置时间与预定值进行比较，并且基于比较结果，选择包括故障鉴别阈值和故障识别执行阈值的预设阈值之一。 然后将所选择的阈值与估计的冷却剂温度或估计的冷却剂温度与检测到的冷却剂温度之间的差值进行比较，并且当估计的冷却剂温度或差异超过故障鉴别阈值时，判别冷却装置已经发生故障 值。 因此，可以高精度地检测故障。
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公开(公告)号：US06467286B2
公开(公告)日：2002-10-22
申请号：US10017296
申请日：2001-12-18
IPC分类号： F25D2312
CPC分类号： B60K6/22 , B60K1/02 , B60K2001/003 , F01P7/164 , F01P7/165 , F01P2003/187 , F01P2005/025 , F01P2050/24 , F01P2050/30 , F01P2060/14 , H01M6/5044 , H01M10/613 , H01M10/625 , H01M10/633 , H01M10/6568 , H01M10/663 , H01M10/667 , Y10S903/903 , Y10S903/904 , Y10S903/905 , Y10S903/906 , Y10S903/907 , Y10S903/951
摘要： A cooling apparatus which has a simple structure and which can efficiently cool a plurality of electric devices is disclosed. The apparatus comprises a cooling circuit including serially-connected cooling systems for cooling electric devices by circulating a refrigerant; a circulating pump for circulating the refrigerant through the cooling circuit; and a radiator which is serially connected to the cooling systems in the cooling circuit and has a refrigerant outlet from which a refrigerant is supplied. The serially-connected cooling systems are arranged in a manner such that heat resisting allowable temperatures, assigned to the electric devices which respectively correspond to the cooling systems, increase from the cooling system closest to the refrigerant outlet to the cooling system farthest from the refrigerant outlet in the cooling circuit, wherein each heat resisting allowable temperature is the maximum temperature at which the relevant electric device can operate.
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