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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：US20080172165A1
公开(公告)日：2008-07-17
申请号：US12009218
申请日：2008-01-17
申请人： Hiroshi Tagami , Yuji Yasui
发明人： Hiroshi Tagami , Yuji Yasui
CPC分类号： F02D41/10 , F01L1/20 , F01L1/3442 , F01L13/0063 , F01L2001/0537 , F01L2105/00 , F01L2820/031 , F02D13/0226 , F02D41/0002 , F02D2041/001 , F02D2200/501 , F02D2200/702 , Y02T10/18 , Y02T10/42
摘要： A control system for an internal combustion engine, which is capable of ensuring excellent fuel economy of the engine and enhancing the responsiveness of the output of the engine when acceleration is demanded. The control system calculates a lift control input for controlling a variable valve lift mechanism, based on a cam phase of a variable cam phase mechanism, and calculates a demanded acceleration indicative of the degree of acceleration demanded of the engine. Further, the control system calculates a value of phase control input for controlling the variable cam phase mechanism with priority to the engine output, and calculates a value of the same with priority to fuel economy of the engine, and selects between the values of phase control input, based on the demanded acceleration.
摘要翻译： 一种用于内燃机的控制系统，其能够确保发动机的优良的燃料经济性并且当需要加速时增强发动机的输出的响应性。 控制系统基于可变凸轮相位机构的凸轮相位来计算用于控制可变气门升程机构的升程控制输入，并计算指示发动机所要求的加速度的要求加速度。 此外，控制系统计算用于控制可变凸轮相位机构的相位控制输入的值，优先于发动机输出，并且计算与发动机的燃料经济性相同的值，并且在相位控制值之间进行选择 输入，根据需求加速度。
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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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27.发明授权Air-fuel ratio control apparatus for exhaust gas from internal combustion engine 失效来自内燃机的排气的空燃比控制装置公开(公告)号：US06351943B1
公开(公告)日：2002-03-05
申请号：US09773903
申请日：2001-02-02
申请人： Hiroshi Tagami , Isao Komoriya
发明人： Hiroshi Tagami , Isao Komoriya
IPC分类号： F01N300
CPC分类号： F01N3/0842 , F02D41/0275 , F02D41/1402 , F02D41/1403 , F02D41/1441 , F02D41/1456 , F02D2041/1418 , F02D2041/142 , F02D2041/1423 , F02D2041/1431 , F02D2041/1433
摘要： In a stoichiometric operation mode after a lean operation mode, a control unit sequentially generates data representing an estimated value of an output VO2/OUT of an O2 sensor after the dead time of an exhaust system, and at the same time generates a target air-fuel ratio KCMD for an exhaust gas upstream of a catalytic converter in order to converge the estimated value to a predetermined target value. The air-fuel ratio of the exhaust gas is controlled at the target air-fuel ratio KCMD. In the stoichiometric operation mode, the reduced state of NOx in the catalytic converter is recognized based on the estimated value of the output of the O2 sensor, and whether the stoichiometric operation mode is to switch to the lean operation mode or not is determined depending on the reduced state of NOx in the catalytic converter.
摘要翻译： 在稀燃运行模式之后，在排气系统的死区时间之后，控制单元依次生成表示O2传感器的输出VO2 / OUT的估计值的数据，同时生成目标空气 - 燃料比KCMD，用于催化转化器上游的排气，以将估计值收敛到预定目标值。 将排气的空燃比控制在目标空燃比KCMD。 在化学计量运行模式中，基于O2传感器的输出的估计值，以及是否切换到稀薄运行模式来确定催化转化器中的NOx的还原状态是否根据 催化转化器中NOx的还原状态。
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