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公开(公告)号：JP2006090218A
公开(公告)日：2006-04-06
申请号：JP2004277193
申请日：2004-09-24
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OI YASUHIRO , YAGIHASHI MASAO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To perform feedback control of engine speed by ignition timing such that the engine speed reaches target engine speed both in operating ranges and non-operating ranges during stop idle operation, in a spark ignition type internal combustion engine for a vehicle to which an automatic transmission is jointed.
SOLUTION: During stop idle operation, feedback control of engine speed is performed by ignition timing. When a shift selector (40) is in the operating ranges (R, D, 2, 1), a feedback gain is made large, and when the shift selector (40) is in the non-operating ranges (P, N), the feedback gain is made small. During shifting of the shift selector (40), the control is stopped.
COPYRIGHT: (C)2006,JPO&NCIPIAbstract translation: 要解决的问题：通过点火正时来进行发动机转速的反馈控制，使得发动机转速在停止怠速运转期间在工作范围和非工作范围内达到目标发动机转速，在火花点火式内燃机中 连接有自动变速器的车辆。
解决方案：在停机怠速运行期间，通过点火正时进行发动机转速的反馈控制。 当换档选择器（40）处于工作范围（R，D，2,1）时，反馈增益变大，当换档选择器（40）处于非运行范围（P，N）时， 反馈增益变小。 在换档选择器（40）的换档过程中，控制停止。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006090207A
公开(公告)日：2006-04-06
申请号：JP2004276448
申请日：2004-09-24
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： ADACHI NORIYASU , DEMURA TAKAYUKI , OI YASUHIRO , OTSUKA IKU , OKAZAKI SHUNTARO , KATO NAOTO , NAGATA TETSUJI
IPC: F02D41/14
Abstract: PROBLEM TO BE SOLVED: To provide an air fuel ratio control device for an internal combustion engine, capable of avoiding mutual interference between respective air fuel ratio feedback controls based on air fuel ratio sensors arranged in exhaust passages in upstream and downstream sides of a catalyst, respectively, and capable of maintaining stable air fuel ratio controls regardless of states of the air fuel ratio sensors. SOLUTION: This device performs upstream side feedback control based on a value obtained by high-pass filter (A12) processing of a value Dabyf on the basis of an output value of the air fuel ratio sensor on the upstream side, and performs downstream side feedback control based on a value obtained by low-pass filter (A7) processing of a value DVoxs on the basis of an output value of the air fuel ratio sensor on the downstream side. Due to this, control frequency bands of the respective feedback controls can be set so as not to overlap with each other, and mutual interference between the feedback controls can be avoided. In addition, in accordance with active states of the air fuel ratio sensors, responsiveness, change directions of output values and the like, gains and time constants of the filters are changed. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种内燃机的空燃比控制装置，其能够基于布置在上游侧和下游侧的排气通路中的空燃比传感器来避免各空燃比反馈控制之间的相互干扰 催化剂，并且能够维持稳定的空燃比控制，而与空燃比传感器的状态无关。 解决方案：该装置基于上游侧的空燃比传感器的输出值，基于由值Dabyf的高通滤波器（A12）处理获得的值执行上游侧反馈控制，并执行 基于由下游侧的空燃比传感器的输出值基于通过低通滤波器（A7）处理值DVox而获得的值的下游侧反馈控制。 由此，能够将各反馈控制的控制频带设定为不相互重叠，能够避免反馈控制之间的相互干扰。 此外，根据空燃比传感器的活动状态，响应性，输出值的变化方向等，改变滤波器的增益和时间常数。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006125304A
公开(公告)日：2006-05-18
申请号：JP2004315119
申请日：2004-10-29
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OTSUKA IKU , DEMURA TAKAYUKI , OI YASUHIRO , ADACHI NORIYASU , OKAZAKI SHUNTARO , KATO NAOTO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To avoid emission deterioration caused by evaporation purging as much as possible and to simply perform relatively exact purge learning. SOLUTION: A basic fuel injection quantity after correction is obtained from relation that, on the assumption that an cylinder intake air volume is constant, a product of a command fuel injection quantity and a detected air-fuel ratio becomes equal to a product of a target air-fuel ratio and a target basic fuel injection quantity for bringing an actual air-fuel ratio of an engine to the target air-fuel ratio. A correction coefficient KF for the basic fuel injection quantity is calculated from a ratio of the basic fuel injection quantity after correction and a basic fuel injection quantity before correction to correct the basic fuel injection quantity. A filter time-constant of low pass filtering for calculation of a KF value at the time of purge is set smaller than that at the time of non-purge. In the purge, in addition to a KF value using a filter of a small time-constant provided for actual air-fuel ratio control, a KF value at the time of non-purge using a filter of a large time-constant is also calculated and purge learning is conducted with use of the KF value at the time of non-purge. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：尽可能避免由蒸发清除引起的排放恶化，并简单地执行相对精确的清洗学习。 解决方案：从汽缸进气量恒定的假设可以看出，修正后的基本燃料喷射量是指令燃料喷射量与检测到的空燃比的乘积等于产品 的目标空燃比和用于使发动机的实际空燃比达到目标空燃比的目标基本燃料喷射量。 基于校正后的基本燃料喷射量与校正前的基本燃料喷射量的比率来计算基本燃料喷射量的校正系数KF，以校正基本燃料喷射量。 用于计算清洗时的KF值的低通滤波器的滤波器时间常数设定为小于不清洗时的滤波器时间常数。 在吹扫中，除了使用为实际空燃比控制提供的小时间常数的过滤器的KF值之外，还计算使用大时间常数的过滤器的非净化时的KF值 并且在不清洗时使用KF值进行吹扫学习。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006070835A
公开(公告)日：2006-03-16
申请号：JP2004256866
申请日：2004-09-03
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OI YASUHIRO , OTSUKA IKU , KONDO SHINYA , KOYAMA HIROYASU , NAGATA TETSUJI
CPC classification number: F01N3/32 , F01N3/22 , F01N2550/14 , Y02T10/20
Abstract: PROBLEM TO BE SOLVED: To improve in opportunity to detect irregularity of component parts while suppressing detection error. SOLUTION: This secondary air supply device 30 is provided with secondary air passages 21, 22, 23a, 23b supplying secondary air in an upstream side of exhaust emission control devices 5a, 5b, a pump 9, a battery 41 driving the pump, a battery voltage detection means 42, open close means V0, V1, V2 opening and closing the secondary air passages, a pressure sensor 33 arranged between the pump and the open close means, and an irregularity detection means 50 detecting irregularity of component parts based on pressure values P1, P2 detected by the pressure sensor and pressure change quantity ΔP at time of open and close of the open close means. When voltage change quantity ΔE between battery voltage value E1 at a time of open of the open close means and battery voltage value E2 at a time of close is larger than a predetermined value ΔE0, irregularity detection of component part by the irregularity detection means is stopped. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提高机会检测组件的不规则性，同时抑制检测误差。 解决方案：该二次空气供给装置30设置有在排气排放控制装置5a，5b的上游侧供给二次空气的二次空气通道21,22a，23b，泵9，驱动泵 电池电压检测装置42，打开和关闭二次空气通道的打开关闭装置V0，V1，V2，布置在泵和打开关闭装置之间的压力传感器33以及检测基于部件的不规则性的不规则检测装置50 由压力传感器检测的压力值P1，P2和打开关闭装置的打开和关闭时的压力变化量ΔP。 当打开关闭装置打开时的电池电压值E1和接近时的电池电压值E2之间的电压变化量ΔE大于预定值ΔE0时，停止由不规则检测装置构成的部分的不规则检测 。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2007064067A
公开(公告)日：2007-03-15
申请号：JP2005249771
申请日：2005-08-30
Applicant: Denso Corp , Fujitsu Ten Ltd , Toyota Motor Corp , トヨタ自動車株式会社 , 富士通テン株式会社 , 株式会社デンソー
Inventor： OTSUKA IKU , DEMURA TAKAYUKI , OI YASUHIRO , AIHARA YOSHITO , NAGATA TETSUJI , NISHIMURA JUNYA
Abstract: PROBLEM TO BE SOLVED: To ensure execution of a predetermined control at proper timing, in a control device for an internal combustion engine in which timing of start of the predetermined control is determined based on timing where an engine speed is the peak in engine start.
SOLUTION: A control device for an internal combustion engine has a means for determining whether or not the engine speed is the peak in engine start, and the timing of starting the predetermined control is determined based on the timing where determination of the peak of the engine speed. The determination whether or not the engine speed is at the peak (S205) is prohibited during a predetermined period Tac from the start of the load element operated by using power of the internal combustion engine.
COPYRIGHT: (C)2007,JPO&INPITAbstract translation: 要解决的问题：为了确保在适当的定时执行预定控制，在内燃机的控制装置中，其中基于发动机转速为峰值的定时确定预定控制的开始定时 启动引擎。 解决方案：用于内燃机的控制装置具有用于判定发动机转速是否是发动机起动中的峰值的装置，并且基于确定峰值的定时来确定启动预定控制的定时 的发动机转速。 在从内燃机的动力运转的负载元件的开始起的预定期间Tac内，禁止发动机转速是否达到峰值（S205）。 版权所有（C）2007，JPO＆INPIT
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Patent Agency Ranking
公开(公告)号：JP2006161695A
公开(公告)日：2006-06-22
申请号：JP2004354905
申请日：2004-12-08
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OTSUKA IKU , DEMURA TAKAYUKI , OI YASUHIRO , ADACHI NORIYASU , OKAZAKI SHUNTARO , KATO NAOTO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To provide a suitable air fuel ratio control device for an internal combustion engine capable of simply and quickly compensating mechanism error of an air fuel mixture supply system. SOLUTION: Under an assumption that cylinder intake air quantity is fixed, Fbaset=Fi(k-M)×abyfs(k)/abyfr(k) is calculated and base fuel injection quantity before compensation Fbaseb(k) is compensated by base fuel injection quantity compensation coefficient KF=Fbaset/Fbaseb(k) based on a relation that a product of command fuel injection quantity Fi(k-M) and detection air fuel ratio abyfs(k) is equal to a product of target air fuel ratio abyfr(k) and target base fuel injection quantity Fbaset for making actual air fuel ratio of an engine target air fuel ratio abyfr(k). A filter time coefficient τ2 for low pass filter processing in this KF calculation is variable based on evaporation purge conditions. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种能够简单且快速补偿空气燃料混合物供应系统的机构误差的用于内燃机的合适的空燃比控制装置。
解决方案：在气缸进气量固定的假设下，计算Fbaset = Fi（kM）×abyfs（k）/ abyfr（k），补偿前基础燃料喷射量Fbaseb（k）由基础燃料 喷射量补偿系数KF = Fbaset / Fbaseb（k），其基于指令燃料喷射量Fi（kM）和检测空燃比abyfs（k）的乘积等于目标空燃比abyfr（k ）和用于实现发动机目标空燃比abyfr（k）的实际空燃比的目标基准燃料喷射量Fbaset。 该KF计算中的低通滤波器处理的滤波器时间系数τ2是基于蒸发清除条件而变化的。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006083724A
公开(公告)日：2006-03-30
申请号：JP2004267106
申请日：2004-09-14
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OKAZAKI SHUNTARO , OTSUKA IKU , ADACHI NORIYASU , DEMURA TAKAYUKI , OI YASUHIRO , KATO NAOTO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To provide an air-fuel ratio control device of an internal combustion engine, surely avoiding interference of the air-fuel ratio feedback control based on the upstream side air-fuel ratio sensor output value upstream from a catalyst with the air-fuel ratio feedback control based on the downstream side air-fuel ratio sensor output value downstream from the catalyst. SOLUTION: In this device, a value based on the upstream side air-fuel ratio sensor output value is processed by a band-pass filter A14 (BPF, passing permission frequency:ω1 to ω2) and a high-path filter A12 (HPF, passing permission frequency:ω2 or more), and the filtered values are input to a P controller not conducting integration processing to thereby perform the fuel injection quantity correction by the main feedback control. A value based on the downstream side air-fuel ratio sensor output value is processed by a low-pass filter A7 (LPF, passing permission frequency:ω1 or less) and the obtained value is input to a PI controller not conducting differential processing to thereby perform the fuel injection quantity correction by the sub-feedback control. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了提供内燃机的空燃比控制装置，可以根据催化剂上游侧的上游侧空燃比传感器输出值确保避免空燃比反馈控制的干扰 基于来自催化剂的下游侧空燃比传感器输出值的空燃比反馈控制。 解决方案：在该装置中，基于上游侧空燃比传感器输出值的值由带通滤波器A14（BPF，通过许可频率：ω1〜ω2）和高通路滤波器A12 （HPF，通过许可频率：ω2以上），并且将滤波后的值输入到不进行积分处理的P控制器，由此通过主反馈控制进行燃料喷射量校正。 基于下游侧空燃比传感器输出值的值由低通滤波器A7（LPF，通过允许频率：ω1以下）进行处理，将得到的值输入到不进行差分处理的PI控制器 通过副反馈控制进行燃料喷射量校正。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2007327445A
公开(公告)日：2007-12-20
申请号：JP2006160302
申请日：2006-06-08
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OTSUKA IKU , OI YASUHIRO , IDE KOJI , YAMAMOTO MASAKAZU
Abstract: PROBLEM TO BE SOLVED: To provide a control device of a negative pressure generator capable of suitably securing controllability of feedback control on ISC control. SOLUTION: This control device of the negative pressure generator comprises an ejector for generating negative pressure larger than negative pressure tried to be taken out of an intake passage of an intake system of an internal combustion engine, and a state changing means for making the ejector function or stopping the function, and controls the negative pressure generator arranged in a passage independent of an idle flow rate adjusting means for adjusting an intake flow rate when idling the internal combustion engine, and has a controllability securing control means for controlling VSV 1 to stop the function of the ejector 30 when a feedback control quantity for controlling an electric throttle 13 by making a feedback process to restrain a variation in the intake flow rate, is a predetermined quantity α or less. COPYRIGHT: (C)2008,JPO&INPIT
Abstract translation: 要解决的问题：提供能够适当地确保对ISC控制的反馈控制的可控性的负压发生器的控制装置。 解决方案：负压发生器的该控制装置包括用于产生大于负压的负压的喷射器，该压力试图从内燃机的进气系统的进气通道中取出;以及状态改变装置， 喷射器功能或停止功能，并且控制负压发生器，其设置在独立于怠速流量调节装置的通道中，用于在空转内燃机时调节进气流量，并且具有用于控制VSV 1的可控性确保控制装置 当通过进行抑制进气流量的变化的反馈处理来控制电动节气门13的反馈控制量为预定量α以下时，停止喷射器30的功能。 版权所有（C）2008，JPO＆INPIT
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公开(公告)号：JP2006112274A
公开(公告)日：2006-04-27
申请号：JP2004298864
申请日：2004-10-13
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OTSUKA IKU , DEMURA TAKAYUKI , OI YASUHIRO , ADACHI NORIYASU , OKAZAKI SHUNTARO , KATO NAOTO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To provide an air fuel ratio control device of an internal combustion engine, suitable to be capable of simply and quickly compensating the mechanical error in an air-fuel mixture supply system. SOLUTION: Assuming the cylinder suction air quantity is constant, Fbaset=Fi(k-M)×abyfs(k)/abyfr(k) is obtained from the relationship that the product of a demand fuel injection amount Fi(k-M) and a detected air-fuel ratio abyfs(k) equals to the product of a target fundamental fuel injection amount Fbaset and a target air-fuel ratio abyfr(k) to make the actual air-fuel ratio of the engine be a target air-fuel ratio abyfr(k), and a precorrected fundamental fuel injection amount Fbaseb(k) is corrected by a fundamental fuel injection amount correction coefficient KF=Fbaset/Fbaseb(k). A filter time constant τ2 of a low-pass filter processing done at calculating the KF is made changeable depending on the operation states. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：提供一种内燃机的空燃比控制装置，其适于能够简单且快速地补偿空气 - 燃料混合物供应系统中的机械误差。
解决方案：假设气缸吸入空气量恒定，则Fbaset = Fi（kM）×abyfs（k）/ abyfr（k）是根据需求燃料喷射量Fi（kM）和 检测到的空燃比abyfs（k）等于目标基本燃料喷射量Fbaset和目标空燃比abyfr（k）的乘积，以使发动机的实际空燃比为目标空燃比 abyfr（k），并且基准燃料喷射量校正系数KF = Fbaset / Fbaseb（k）校正预校正的基本燃料喷射量Fbaseb（k）。 在计算KF时完成的低通滤波处理的滤波器时间常数τ2根据操作状态而变化。 版权所有（C）2006，JPO＆NCIPI
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公开(公告)号：JP2006112232A
公开(公告)日：2006-04-27
申请号：JP2004297155
申请日：2004-10-12
Applicant: Denso Corp , Toyota Motor Corp , トヨタ自動車株式会社 , 株式会社デンソー
Inventor： OKAZAKI SHUNTARO , ADACHI NORIYASU , OTSUKA IKU , OI YASUHIRO , DEMURA TAKAYUKI , KATO NAOTO , NAGATA TETSUJI
Abstract: PROBLEM TO BE SOLVED: To avoid mutual interference of air-fuel ratio feedback control based on three air-fuel ratio sensors respectively arranged upstream of a first catalyst, upstream of a second catalyst arranged downstream of the first catalyst and in series downstream of the first catalyst and downstream of the second catalyst, in an exhaust passage of an internal combustion engine. SOLUTION: This air-fuel ratio control device performs upstream feedback control on the basis of a value of filter-processing a value Dvabyf based on an output value of an upstream air-fuel ratio sensor by a high-pass filter A5 (a passing permitting frequency : ω1 or more); and performs midstream feedback control on the basis of a value of filter-processing a value DVoxs1 based on an output value of a midstream air-fuel ratio sensor by a band-pass filter A10 (the passing permitting frequency : ω0 to ω1); and performs downstream feedback control on the basis of a value of filter-processing a value DVoxs2 based on an output value of a downstream air-fuel ratio sensor by a low-pass filter A15 (the passing permitting frequency : ω0 or less). COPYRIGHT: (C)2006,JPO&NCIPI
Abstract translation: 要解决的问题：为了避免基于分别布置在第一催化剂上游的三个空燃比传感器的空燃比反馈控制的相互干扰，布置在第一催化剂下游的第二催化剂的上游和串联的下游 的第一催化剂和第二催化剂的下游，在内燃机的排气通道中。 解决方案：该空燃比控制装置基于通过高通滤波器A5的上游空燃比传感器的输出值对值Dvabyf进行滤波处理的值进行上行反馈控制（ 通过许可频率：ω1以上）; 基于通过带通滤波器A10（通过许可频率ω0〜ω1）的中游空燃比传感器的输出值对DVoxs1进行滤波处理的值进行中间流反馈控制; 基于通过低通滤波器A15（通过许可频率ω0以下）的下游空燃比传感器的输出值对DVoxs2进行滤波处理的值进行下行反馈控制。 版权所有（C）2006，JPO＆NCIPI
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