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61. 发明专利

JP2007262898A Air-fuel ratio control device of internal combustion engine 有权
标题翻译：内燃机空燃比控制装置
公开(公告)号：JP2007262898A
公开(公告)日：2007-10-11
申请号：JP2006084880
申请日：2006-03-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAGIMOTO TAIGA , FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , KAKO JUNICHI , KATO NAOTO , OKAZAKI SHUNTARO
IPC分类号： F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device of an internal combustion engine capable of further quickly making the actual air-fuel ratio coincide with the target air-fuel ratio. SOLUTION: This air-fuel ratio control device selects first differential gain Kd1 as differential gain Kd when increasing in the size of an output deviation DVoxs being a difference between an output value Voxs of an air-fuel ratio sensor arranged in an exhaust passage and a target value Voxsref (Step 725), and selects second differential gain Kd2 smaller in the size than the first differential gain as the differential gain when the size of the deviation reduces (Step 750). This device also determines a downstream side feedback correction quantity Vafsfb on the basis of the selected differential gain (Step 730). Thus, when the size of the output deviation increases, an increase in the size of the output deviation is sufficiently restrained. While, when the size of the output deviation reduces, reduction in the size of the output deviation is not restrained so much. COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：解决的问题：提供能够进一步快速使实际空燃比与目标空燃比一致的内燃机的空燃比控制装置。解决方案：该空燃比控制装置在输出偏差的大小增加时选择第一差分增益Kd1作为微分增益Kd，DVox是布置在排气口中的空燃比传感器的输出值Vox之间的差通过和目标值Voxsref（步骤725），并且当偏差的大小减小时，选择尺寸小于第一差分增益的第二差分增益Kd2作为差分增益（步骤750）。该装置还基于所选择的差分增益确定下游侧反馈校正量Vafsfb（步骤730）。因此，当输出偏差的大小增加时，输出偏差的大小的增加被充分地抑制。而当输出偏差的大小减小时，输出偏差的大小的减小不会受到限制。版权所有（C）2008，JPO＆INPIT

62. 发明专利

JP2007239462A Air fuel ratio control device for internal combustion engine 审中-公开
标题翻译：用于内燃机的空燃比控制装置
公开(公告)号：JP2007239462A
公开(公告)日：2007-09-20
申请号：JP2006058539
申请日：2006-03-03
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KATO NAOTO , OKAZAKI SHUNTARO , KAKO JUNICHI , FUJIWARA TAKAHIKO , NAKAGAWA NORIHISA , HAGIMOTO TAIGA
IPC分类号： F02D41/14 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To reduce the influence of reliability of output value of an oxygen sensor arranged in a downstream of a catalyst on air fuel ratio control of air fuel mixture in relation to an air fuel ratio control device for an internal combustion engine.
SOLUTION: A correction value for correcting a parameter used for air fuel ratio control is calculated based on output value of a downstream side oxygen sensor. The correction value includes an integration value of deviation of output value of the downstream side oxygen sensor from a predetermined reference value. The integration value will be being renewed with having integration renewing quantity calculated from the deviation. The integration renewing quantity is reduced according to the lowness of reliability of output value of the downstream side oxygen sensor. In an embodiment, integration correction coefficient of integration renewing quantity is made small according to the lowness of load rate since it can be determined that the reliability of output value of the downstream side oxygen sensor gets lower as exhaust gas flow rate is lowered.
COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了减少布置在催化剂下游的氧传感器的输出值的可靠性对空气燃料混合物的空燃比控制相对于用于内燃的空燃比控制装置的影响发动机。解决方案：基于下游侧氧传感器的输出值计算用于校正用于空燃比控制的参数的校正值。校正值包括下游侧氧传感器的输出值与预定参考值的偏差的积分值。随着偏差计算出积分更新量，积分值将被更新。根据下游侧氧传感器的输出值的可靠性低，整合更新量减少。在一个实施例中，由于可以确定下游侧氧传感器的输出值的可靠性随着废气流量的降低而降低，所以根据负载率的低度使积分更新量的积分校正系数变小。版权所有（C）2007，JPO＆INPIT

63. 发明专利

JP2007231750A Air-fuel ratio control device of internal combustion engine 审中-公开
标题翻译：内燃机空燃比控制装置
公开(公告)号：JP2007231750A
公开(公告)日：2007-09-13
申请号：JP2006051412
申请日：2006-02-28
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： NAKAGAWA NORIHISA , FUJIWARA TAKAHIKO , HAGIMOTO TAIGA , KAKO JUNICHI , KATO NAOTO , OKAZAKI SHUNTARO
IPC分类号： F02D41/14 , B01D53/86 , B01D53/94 , F01N3/24 , F02D41/06 , F02D45/00
摘要： PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device performing air-fuel ratio feedback control based on at least a deviation integral value updated by integration of deviations between output values of an air-fuel sensor downstream of a catalyst and a target value corresponding to a target air-fuel ratio and capable of inhibiting erroneous learning of the deviation integral value toward a rich side even when executing learning of the deviation integral value after return from fuel-cut control (FC). SOLUTION: A feedback correction value is calculated through PID processing about [a deviation between the output value of the air-fuel sensor downstream of the catalyst and an output value Voxsref (constant) corresponding to the target air-fuel ratio] and an air-fuel ratio is controlled to agree with the target air-fuel ratio (= theoretical air-fuel ratio). Only in a predetermined period (flag ORE =1) after the time of FC return, an I processing in the PID processing is exerted with use of [the deviation between the output value of the air-fuel ratio sensor and the target value Voxsrefi ( COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种空燃比控制装置，其基于至少一个偏差积分值来执行空燃比反馈控制，所述偏差积分值通过将催化剂下游的空气 - 燃料传感器的输出值之间的偏差的积分以及对应于目标空燃比的目标值，并且即使在从燃料切断控制（FC）返回之后执行偏差积分值的学习时，也能够抑制偏向积分值的错误学习。解决方案：通过PID处理计算反馈校正值，该值为[催化剂下游的空气 - 燃料传感器的输出值与对应的空燃比对应的输出值Voxsref（常数）之间的偏差] 控制空燃比以符合目标空燃比（=理论空燃比）。在FC返回时间之后，在规定期间（标志ORE = 1）中，利用[空燃比传感器的输出值与目标值Voxsrefi（代替[空燃比传感器的输出值与Voxsref之间的偏差]相当于比目标空燃比更稀薄的空燃比的

64. 发明专利

JP2007113467A Exhaust emission control device for internal combustion engine 有权
标题翻译：用于内燃机的排气排放控制装置
公开(公告)号：JP2007113467A
公开(公告)日：2007-05-10
申请号：JP2005304851
申请日：2005-10-19
申请人： Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
发明人： KAKO JUNICHI , SOEJIMA SHINICHI , KAYAMA RYUZO
IPC分类号： F02D45/00 , B01D53/86 , F01N3/20
CPC分类号： B01D53/9495 , F01N11/002 , F01N11/005 , F01N2560/06 , F02D41/0235 , F02D41/1446 , F02D2200/0804 , Y02T10/47
摘要： PROBLEM TO BE SOLVED: To provide an exhaust emission control device for an internal combustion engine which can obtain correct information on temperature of a catalyst located in an exhaust passage of the internal combustion engine. SOLUTION: An influence degree emthc of a catalyst inlet gas temperature and a catalyst rear end temperature ethuf[end] is calculated (S102). An estimated value ethco of an outlet gas temperature is calculated by a weighted average of the inlet gas temperature and the catalyst rear end temperature ethuf[end], taking the influence degree emthc into account (S104). A temperature correction coefficient ekthuf[x] for every part of the catalyst is calculated as a function f(emthc) of the influence degree emthc (S108). A difference between the estimated outlet gas temperature value ethco and an actually measured value of the outlet gas temperature is multiplied by the temperature correction coefficient ekthuf[x] so as to determine an estimated value correction quantity ecthuf[x] (S110). The estimated value correction quantity ecthuf[x] is added to an estimated value of the catalyst temperature (S114). COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种内燃机的废气排放控制装置，其能够获得关于位于内燃机的排气通道中的催化剂的温度的正确信息。
解决方案：计算催化剂入口气体温度和催化剂后端温度流动的影响程度（end）（S102）。考虑到影响程度（S104），通过入口气体温度和催化剂后端温度范围的加权平均值来计算出口气体温度的估计值ethco（S104）。计算催化剂的每个部分的温度校正系数ekthuf [x]作为影响度的函数f（emthc）（S108）。将估计的出口气体温度值ethco与出口气体温度的实际测量值之差乘以温度校正系数ekthuf [x]，以便确定估计值校正量ecthuf [x]（S110）。将估计值校正量ecthuf [x]加到催化剂温度的估计值（S114）。版权所有（C）2007，JPO＆INPIT

65. 发明专利

JP2006312919A Engine controller 有权
标题翻译：发动机控制器
公开(公告)号：JP2006312919A
公开(公告)日：2006-11-16
申请号：JP2005136530
申请日：2005-05-09
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAKO JUNICHI , AOKI MASAKAZU
IPC分类号： F02P5/152 , F02D45/00 , F02P5/153
CPC分类号： Y02T10/46
摘要： PROBLEM TO BE SOLVED: To properly control ignition timing even when there is aged deterioration, and individual difference coming from a manufacturing error or the like. SOLUTION: An ignition timing correction amount is determined in response to a correlation value between a 50% burning point BP50[°ATDC] and torque ITQ. Since a correlation coefficient cor being lower than a reference value thrl which is a negative value means that the 50% burning point BP50 and the torque ITQ are distributed in a "descending" state as indicated by a sign (a), it can be estimated that the present ignition time is in a retardation side with respect to an MBT. Thus, in such a case, the ignition timing is corrected to a timing advance side. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：即使老化变质，以及来自制造误差等的个体差异，也能适当地控制点火正时。解决方案：响应于50％燃烧点BP50 [°ATDC]和扭矩ITQ之间的相关值来确定点火正时校正量。由于相关系数cor低于作为负值的基准值thr1，所以表示50％燃烧点BP50和转矩ITQ分配为如（a）所示的“下降”状态，因此可以估计现在的点火时间在相对于MBT的延迟侧。因此，在这种情况下，将点火正时校正为定时提前侧。版权所有（C）2007，JPO＆INPIT

66. 发明专利

JP2006132385A Control device for variable cylinder internal combustion engine 审中-公开
标题翻译：可变气缸内燃机的控制装置
公开(公告)号：JP2006132385A
公开(公告)日：2006-05-25
申请号：JP2004320554
申请日：2004-11-04
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： HAYASAKA MASATO , KAKO JUNICHI
IPC分类号： F02D17/02 , F02D41/02 , F02D41/04 , F02D43/00
摘要： PROBLEM TO BE SOLVED: To provide a control device for a variable cylinder internal combustion engine surely preventing engine stall even if misfire occurs in an operating cylinder during reduced cylinder operation.
SOLUTION: During reduced cylinder operation under which part of cylinders is operated, rest of cylinders are stopped without opening intake valves and exhaust valves. At a time of start of reduced cylinder operation, air fuel mixture is formed in the rest of the cylinders but ignition is not performed to stop the rest of the cylinders without opening the exhaust valve (step 102, 103, 104, 105). When drop of engine speed of an established value or more occurs or drop of engine speed of the established value or more is anticipated during reduced operation (step 106), ignition is performed in the stopping cylinder of which ignition timing is right after that and operation is started (step 107, 108, 109).
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了提供可变气缸内燃机的控制装置，确保在减缸操作期间在操作气缸中发生失火时可靠地防止发动机失速。
解决方案：在减缸操作期间，气缸的一部分被操作，其余的气缸停止而不打开进气门和排气阀。在减缸操作开始时，在其余的气缸中形成空气燃料混合物，但不会点燃而不打开排气阀，停止其余的气缸（步骤102,103,104,105）。在减速操作期间（步骤106）中，发生预定值以上的发动机转速下降或发动机转速达到设定值以上时（步骤106），在该点火正时后的停止气缸中进行点火开始（步骤107,108,109）。版权所有（C）2006，JPO＆NCIPI

67. 发明专利

JP2006029313A Control device for internal combustion engine 有权
标题翻译：内燃机控制装置
公开(公告)号：JP2006029313A
公开(公告)日：2006-02-02
申请号：JP2004342683
申请日：2004-11-26
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAWAI KEISUKE , KAKO JUNICHI , OIKE SATOSHI
IPC分类号： F02D45/00
摘要： PROBLEM TO BE SOLVED: To prevent wrong execution of knock responding control due to wrong detection of a knock signal, in regard to a control device for an internal combustion engine.
SOLUTION: Based on a heat value at every crank angle in a current operating condition, a combustion rate at detection timing of the knock signal is calculated. A combustion rate upper limit value (an upper limit value of the combustion rate at which a knock is generated) corresponding to the current operating condition is read out from a memory means. The combustion rate at the knock signal detection timing is compared with the combustion rate upper limit value, and when it is determined that the combustion rate at the knock signal detection timing exceeds the combustion rate upper limit value, execution of the knock responding control is prohibited.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：为了防止由于爆震信号的错误检测而引起的爆震响应控制的错误执行，关于内燃机的控制装置。解决方案：根据当前操作状态下的每个曲柄角的热值，计算爆震信号的检测时刻的燃烧率。从存储装置读出对应于当前工作状态的燃烧速度上限值（产生爆震的燃烧率的上限值）。将爆震信号检测定时的燃烧率与燃烧率上限值进行比较，当确定爆震信号检测时刻的燃烧率超过燃烧率上限值时，禁止执行爆震响应控制。版权所有（C）2006，JPO＆NCIPI

68. 发明专利

JP2005090325A Fuel injection amount controller 审中-公开
标题翻译：燃油喷射量控制器
公开(公告)号：JP2005090325A
公开(公告)日：2005-04-07
申请号：JP2003323719
申请日：2003-09-16
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAKO JUNICHI , KOJIMA KAZUNORI , KOMAKI MASASHI
IPC分类号： F02D45/00 , F02D41/04
摘要： PROBLEM TO BE SOLVED: To improve precision for estimating the amount of fuel adhesion by changing a fuel behavior parameter depending on whether fuel is during firing or not. SOLUTION: A CPU 81 determines a fuel remaining rate P and a fuel adhesion rate R (steps 220 to 240) which are fuel behavior parameters used in a fuel behavior simulation model using a fuel remaining rate map MapP1 and a fuel adhesion rate map MapR1 for firing time when it is determined that firing execution conditions are satisfied (step 215), respectively, to obtain the amount of fuel adhesion fw by them. On the other hand, when it is determined that firing execution conditions are not satisfied, the fuel remaining rate P and the fuel adhesion rate R are determined (steps 265 to 285) using a fuel remaining rate map MapP2 and a fuel adhesion rate map MapR2 for non-firing time, respectively, to obtain the amount of fuel adhesion fw by them. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过根据燃料是否在燃烧期间改变燃料行为参数来提高用于估计燃料附着量的精度。解决方案：CPU81确定作为在燃料行为模拟模型中使用的燃料行为参数的燃料残留率P和燃料附着率R（步骤220至240），其使用燃料剩余率映射MapP1和燃料附着率在确定触发执行条件满足时（步骤215）分别映射MapR1的点火时间，以获得它们的燃料粘附力fw。另一方面，当确定不满足点火执行条件时，使用燃料剩余率映射MapP2和燃料附着率映射MapR2来确定燃料剩余率P和燃料附着率R（步骤265至285）分别用于非燃烧时间，以获得燃料附着力fw。版权所有（C）2005，JPO＆NCIPI

69. 发明专利

JP2004353466A Fuel injection amount control device of internal combustion engine 有权
标题翻译：燃油喷射控制装置内燃机
公开(公告)号：JP2004353466A
公开(公告)日：2004-12-16
申请号：JP2003149077
申请日：2003-05-27
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KOJIMA KAZUNORI , KAKO JUNICHI , KOMAKI MASASHI
IPC分类号： F02D45/00 , F02D41/04 , F02D41/34
CPC分类号： Y02T10/44
摘要： PROBLEM TO BE SOLVED: To adjust a fuel injection amount to a proper one by appropriating the fuel behavior parameters of a fuel behavior model estimating fuel amount adhered to an intake air passage forming member.
SOLUTION: This fuel injection amount control device determines the fuel behavior parameters Ptj and Rtj based on actual operating state parameters and tables 1f and g1 (steps 220, 225). Also, the device estimates a stationary fuel adhesion amount by using the fuel behavior parameters and the model on the assumption that the fuel adhesion amount is kept unchanged before and after the injection of fuel (step 260), and estimates an instantaneous fuel adhesion amount by using the fuel behavior parameters and the model (step 250). Then, the device corrects the fuel behavior parameters according to the results of comparison between the instantaneous fuel adhesion amount and the stationary fuel adhesion amount (steps 230, 235), and determines the fuel injection amount by applying the parameters to the inverse model of the model (step 240).
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：通过调用估计附着在进气通道形成构件上的燃料量的燃料行为模型的燃料行为参数，来将燃料喷射量调整到适当的值。解决方案：该燃料喷射量控制装置基于实际操作状态参数和表1f和g1确定燃料行为参数Ptj和Rtj（步骤220,225）。此外，该装置在燃料喷射前后燃料附着量保持不变的情况下，通过使用燃料性能参数和模型来估计固定燃料附着量（步骤260），并且通过以下方式估计瞬时燃料附着量使用燃料行为参数和模型（步骤250）。然后，根据瞬时燃料附着量与固定燃料附着量之间的比较结果对装置的燃料特性参数进行修正（步骤230,235），并通过将参数应用于模型（步骤240）。版权所有（C）2005，JPO＆NCIPI

70. 发明专利

JP2004197716A Control device for internal combustion engine 有权
公开(公告)号：JP2004197716A
公开(公告)日：2004-07-15
申请号：JP2002370535
申请日：2002-12-20
申请人： Toyota Motor Corp , トヨタ自動車株式会社
发明人： KAKO JUNICHI , AOKI MASAKAZU
IPC分类号： F02D45/00 , F01N3/22 , F01N3/24
摘要： PROBLEM TO BE SOLVED: To control a catalyst temperature to be optimum by accurately estimating the catalyst temperature.
SOLUTION: This control device comprises a catalyst 32 for purifying exhaust gas from an internal combustion engine, a means for supplying secondary air to an exhaust system for the internal combustion engine, a cylinder pressure sensor 44 for acquiring cylinder pressure, a means for finding energy loss out of a heating value generated in a cylinder due to exhaust gas in accordance with the cylinder pressure, a means for finding the energy of unburnt fuel in the cylinder, a means for estimating the temperature of the catalyst 32 in accordance with the energy loss due to the exhaust gas and the energy of the unburnt fuel, and a control means for controlling the supply of the secondary air in accordance with the catalyst temperature.
COPYRIGHT: (C)2004,JPO&NCIPI

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