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公开(公告)号：US07379809B2
公开(公告)日：2008-05-27
申请号：US10593443
申请日：2005-03-29
CPC分类号： F02D31/003 , F02D21/08 , F02D23/00 , F02D37/02 , F02D41/1403 , F02D2041/001 , F02M26/05 , F02P5/1508 , G05B11/32 , Y02T10/144 , Y02T10/46
摘要： A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU 2 of a control system 1 controls engine speed NE during idling by an ignition control input Usl_ig and an intake control input Usl_ar. The ECU 2 calculates a target engine speed NE_cmd according to an engine coolant temperature TW and the like (step 3), and determines the ignition control input Usl_ig and the intake control input Usl_ar with a plurality of predetermined target value filter-type two-degree-of-freedom sliding mode control algorithms [equations (1) to (12)] sharing one switching function σne therebetween, such that the engine speed NE converges to the target engine speed NE_cmd (steps 4 to 7 and 9).
摘要翻译： 当控制对象的输出由多个控制输入进行反馈控制时，能够提高控制的稳定性和精度的控制系统。 控制系统1的ECU2通过点火控制输入Usl_ig和进气控制输入Us1_ar来控制空转期间的发动机转速NE。 ECU2根据发动机冷却水温度TW等来计算目标发动机转速NE_cmd（步骤3），并用多个预定目标值过滤器型二度确定点火控制输入Usl_ig和进气控制输入Us1_ar 自由滑动模式控制算法[等式（1）至（12）]在其间共享一个切换功能sigmane，使得发动机转速NE收敛到目标发动机转速NE_cmd（步骤4至7和9）。
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公开(公告)号：US07661407B2
公开(公告)日：2010-02-16
申请号：US12251069
申请日：2008-10-14
IPC分类号： F02P5/15
CPC分类号： F02D13/023 , F01L13/0063 , F01L2800/00 , F01L2820/032 , F02B75/048 , F02D13/0238 , F02D15/02 , F02D41/182 , F02D41/22 , F02D2200/0402 , F02D2400/08 , Y02T10/18
摘要： A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.
摘要翻译： 即使存在计算出的进气量的可靠性降低的情况下，能够提高燃料控制和点火正时控制的精度的内燃机的控制系统，能够降低制造成本。 控制系统的ECU根据气门升程，凸轮相位和压缩比来计算第一估计进气量，根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速，气门升程，凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin1的范围内时，ECU根据第一估计进气量判定燃料喷射量， 并且根据Gin2 <= Gin_vt时的第二估计进气量。
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公开(公告)号：US07451754B2
公开(公告)日：2008-11-18
申请号：US11587966
申请日：2005-04-21
IPC分类号： F02D41/18
CPC分类号： F02D13/023 , F01L13/0063 , F01L2800/00 , F01L2820/032 , F02B75/048 , F02D13/0238 , F02D15/02 , F02D41/182 , F02D41/22 , F02D2200/0402 , F02D2400/08 , Y02T10/18
摘要： A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.
摘要翻译： 即使存在计算出的进气量的可靠性降低的情况下，能够提高燃料控制和点火正时控制的精度的内燃机的控制系统，能够降低制造成本。 控制系统的ECU根据气门升程，凸轮相位和压缩比来计算第一估计进气量，根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速，气门升程，凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin 1的范围内时，ECU根据第一估计进气量判定燃料喷射量 ，并且根据Gin 2 <= Gin_vt时的第二估计进气量。
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公开(公告)号：US07440836B2
公开(公告)日：2008-10-21
申请号：US11628499
申请日：2005-06-10
CPC分类号： F02D37/02 , F01L1/34 , F01L1/3442 , F01L13/0021 , F01L13/0063 , F01L2001/3443 , F02D41/1401 , F02D41/1454 , F02D41/187 , F02D41/221 , F02D2041/001
摘要： A control system for an internal combustion engine, which is capable of properly performing air-fuel ratio control and ignition timing control according to an actual amount of intake air, even when reliability of the results of detection of the operating condition of a variable intake mechanism is low. The control system for controlling air-fuel ratio and ignition timing includes an ECU. The ECU calculates a target air-fuel ratio, calculates an air-fuel ratio correction coefficient, calculates a statistically processed value of an air-fuel ratio index value, calculates a corrected valve lift and a corrected cam phase, and determines a fuel injection amount according to the corrected valve lift, the corrected cam phase, and the air-fuel ratio correction coefficient.
摘要翻译： 一种用于内燃机的控制系统，其能够根据实际的进气量适当地执行空燃比控制和点火正时控制，即使在可变进气机构的运行状态的检测结果的可靠性 低。 用于控制空燃比和点火正时的控制系统包括ECU。 ECU计算目标空燃比，计算空燃比校正系数，计算空燃比指标值的统计处理值，计算校正后的气门升程和校正的凸轮相位，并且确定燃料喷射量 根据校正的气门升程，校正的凸轮相位和空燃比校正系数。
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公开(公告)号：US20070225892A1
公开(公告)日：2007-09-27
申请号：US11587966
申请日：2005-04-21
IPC分类号： G06F7/00
CPC分类号： F02D13/023 , F01L13/0063 , F01L2800/00 , F01L2820/032 , F02B75/048 , F02D13/0238 , F02D15/02 , F02D41/182 , F02D41/22 , F02D2200/0402 , F02D2400/08 , Y02T10/18
摘要： A control system for an internal combustion engine, which is capable of enhancing the accuracy of fuel control and ignition timing control even when there is a possibility that the reliability of a calculated intake air amount lowers, and enables reduction of manufacturing costs. An ECU of the control system calculates a first estimated intake air amount according to a valve lift, a cam phase, and a compression ratio, calculates a second estimated intake air amount according to the flow rate of air detected by an air flow sensor. The ECU determines a fuel injection amount according to the first estimated intake air amount when an estimated flow rate Gin_vt calculated based on an engine speed, the valve lift, the cam phase, and the compression ratio is within the range of Gin_vt≦Gin1, and according to the second estimated intake air amount when Gin2≦Gin_vt.
摘要翻译： 即使存在计算出的进气量的可靠性降低的情况下，能够提高燃料控制和点火正时控制的精度的内燃机的控制系统，能够降低制造成本。 控制系统的ECU根据气门升程，凸轮相位和压缩比来计算第一估计进气量，根据由空气流量传感器检测的空气流量计算第二估计进气量。 当基于发动机转速，气门升程，凸轮相位和压缩比计算的估计流量Gin_vt在Gin_vt <= Gin 1的范围内时，ECU根据第一估计进气量判定燃料喷射量 ，并且根据Gin 2 <= Gin_vt时的第二估计进气量。
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公开(公告)号：US20070208486A1
公开(公告)日：2007-09-06
申请号：US11628499
申请日：2005-06-10
IPC分类号： G06G7/70
CPC分类号： F02D37/02 , F01L1/34 , F01L1/3442 , F01L13/0021 , F01L13/0063 , F01L2001/3443 , F02D41/1401 , F02D41/1454 , F02D41/187 , F02D41/221 , F02D2041/001
摘要： A control system for an internal combustion engine, which is capable of properly performing air-fuel ratio control and ignition timing control according to an actual amount of intake air, even when reliability of the results of detection of the operating condition of a variable intake mechanism is low. The control system 1 for controlling air-fuel ratio and ignition timing includes an ECU 2. The ECU 2 calculates a target air-fuel ratio KCMD (step 22), calculates an air-fuel ratio correction coefficient KSTR for performing feedback control of an air-fuel ratio (steps 2 to 7), calculates a statistically processed value KAF_LS of an air-fuel ratio index value (step 82), calculates a corrected valve lift Liftin_comp and a corrected cam phase Cain_comp according to the statistically processed value KAF_LS (steps 81 to 92), and determines a fuel injection amount TOUT according to the corrected valve lift Liftin_comp, the corrected cam phase Cain_comp, and the air-fuel ratio correction coefficient KSTR.
摘要翻译： 一种用于内燃机的控制系统，其能够根据实际的进气量适当地执行空燃比控制和点火正时控制，即使在可变进气机构的运行状态的检测结果的可靠性 低。 用于控制空燃比和点火正时的控制系统1包括ECU2。 ECU2计算目标空燃比KCMD（步骤22），计算用于进行空燃比的反馈控制的空燃比校正系数KSTR（步骤2〜7），计算统计处理值KAF_LS 空燃比指标值（步骤82），根据统计处理值KAF_LS（步骤81〜92）计算校正后的气门升程Liftin_comp和校正凸轮相位Cain_comp，并根据校正的气门升程确定燃料喷射量TOUT Liftin_comp，校正凸轮相位Cain_comp，以及空燃比校正系数KSTR。
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公开(公告)号：US20070198163A1
公开(公告)日：2007-08-23
申请号：US10593443
申请日：2005-03-29
CPC分类号： F02D31/003 , F02D21/08 , F02D23/00 , F02D37/02 , F02D41/1403 , F02D2041/001 , F02M26/05 , F02P5/1508 , G05B11/32 , Y02T10/144 , Y02T10/46
摘要： A control system which is capable of enhancing both the stability and the accuracy of control when the output of a controlled object is feedback-controlled by a plurality of control inputs. An ECU 2 of a control system 1 controls engine speed NE during idling by an ignition control input Usl_ig and an intake control input Usl_ar. The ECU 2 calculates a target engine speed NE_cmd according to an engine coolant temperature TW and the like (step 3), and determines the ignition control input Usl_ig and the intake control input Usl_ar with a plurality of predetermined target value filter-type two-degree-of-freedom sliding mode control algorithms [equations (1) to (12)] sharing one switching function σne therebetween, such that the engine speed NE converges to the target engine speed NE_cmd (steps 4 to 7 and 9).
摘要翻译： 当控制对象的输出由多个控制输入进行反馈控制时，能够提高控制的稳定性和精度的控制系统。 控制系统1的ECU2通过点火控制输入Usl_ig和进气控制输入Us1_ar来控制空转期间的发动机转速NE。 ECU2根据发动机冷却水温度TW等来计算目标发动机转速NE_cmd（步骤3），并用多个预定目标值过滤器型二度确定点火控制输入Usl_ig和进气控制输入Us1_ar 自由滑动模式控制算法[等式（1）至（12）]在其间共享一个切换功能sigmane，使得发动机转速NE收敛到目标发动机转速NE_cmd（步骤4至7和9）。
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公开(公告)号：US07299680B2
公开(公告)日：2007-11-27
申请号：US11268729
申请日：2005-11-08
CPC分类号： G01L23/225
摘要： An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output signal of the in-cylinder pressure sensor. The first signal has a frequency band corresponding to knocking of the engine. The second signal has a frequency band used for detecting a peak of the internal cylinder pressure. A knocking detection period is set based on the second signal. The first signal in the knocking detection period is examined to determine whether or not knocking has occurred.
摘要翻译： 提供了用于输出与发动机的内部气缸压力相对应的信号的缸内压力传感器。 从缸内压力传感器的输出信号中提取第一信号和第二信号。 第一信号具有对应于发动机爆震的频带。 第二信号具有用于检测内部气缸压力的峰值的频带。 基于第二信号设定爆震检测期间。 检查爆震检测期间的第一信号以确定是否发生了敲击。
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公开(公告)号：US20060086177A1
公开(公告)日：2006-04-27
申请号：US11268729
申请日：2005-11-08
IPC分类号： G01L23/22
CPC分类号： G01L23/225
摘要： An in-cylinder pressure sensor for outputting a signal corresponding to an internal cylinder pressure of an engine is provided. A first signal and a second signal are extracted from the output signal of the in-cylinder pressure sensor. The first signal has a frequency band corresponding to knocking of the engine. The second signal has a frequency band used for detecting a peak of the internal cylinder pressure. A knocking detection period is set based on the second signal. The first signal in the knocking detection period is examined to determine whether or not knocking has occurred.
摘要翻译： 提供了用于输出与发动机的内部气缸压力相对应的信号的缸内压力传感器。 从缸内压力传感器的输出信号中提取第一信号和第二信号。 第一信号具有对应于发动机爆震的频带。 第二信号具有用于检测内部气缸压力的峰值的频带。 基于第二信号设定爆震检测期间。 检查爆震检测期间的第一信号以确定是否发生了敲击。
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公开(公告)号：US20090132144A1
公开(公告)日：2009-05-21
申请号：US11665054
申请日：2005-09-29
申请人： Koichiro Shinozaki , Yuji Yasui , Katsura Okubo , Masahiro Sato
发明人： Koichiro Shinozaki , Yuji Yasui , Katsura Okubo , Masahiro Sato
CPC分类号： F02D35/023 , F02D15/02 , F02D41/1497 , F02D2041/288
摘要： Work done by an engine can be accurately calculated regardless of the part in an observation section where the cylinder internal pressure signal is detected. The apparatus for calculating the work done by an engine establishes in advance correlation of phase between the cylinder internal pressure of the engine and a reference signal composed of a predetermined frequency component as a reference phase relation. A means for detecting the cylinder internal pressure of the engine for a predetermined observation section is provided. A reference signal corresponding to the detected cylinder internal pressure of the engine is calculated so that the reference phase relation is satisfied. A correlation coefficient of the detected cylinder internal pressure of the engine and the calculated reference signal is calculated for the observation section and the work done by the engine is calculated in accordance with the correlation coefficient.
摘要翻译： 无论检测到气缸内部压力信号的观察部分中的部分如何，都可以精确地计算发动机的作业。 用于计算由发动机完成的作业的装置预先将发动机的气缸内部压力与由预定频率分量组成的参考信号之间的相位相关，作为参考相位关系。 提供了一种用于检测用于预定观察部分的发动机的气缸内部压力的装置。 计算与检测到的发动机气缸内部压力相对应的参考信号，使得满足基准相位关系。 对于观测部分计算检测到的发动机气缸内部压力和计算出的参考信号的相关系数，并根据相关系数计算发动机完成的功率。
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